X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fllite%2Ffile.c;h=6111900a2af35ef2672c455498c41bc742985aed;hp=45f2131c3853f1464692664845cdcb721eed3430;hb=cb85c0364fd8323f4bb03c481660805da66aaf85;hpb=df8d26f186c1726ddf50a39d82b02a6b685b8d2b diff --git a/lustre/llite/file.c b/lustre/llite/file.c index 45f2131..6111900 100644 --- a/lustre/llite/file.c +++ b/lustre/llite/file.c @@ -27,7 +27,7 @@ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * - * Copyright (c) 2011, 2012, Intel Corporation. + * Copyright (c) 2011, 2013, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -45,17 +45,33 @@ #include #include #include +#include #include "llite_internal.h" #include +#include #include "cl_object.h" -struct ll_file_data *ll_file_data_get(void) +static int +ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg); + +static int ll_lease_close(struct obd_client_handle *och, struct inode *inode, + bool *lease_broken); + +static enum llioc_iter +ll_iocontrol_call(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg, int *rcp); + +static struct ll_file_data *ll_file_data_get(void) { struct ll_file_data *fd; - OBD_SLAB_ALLOC_PTR_GFP(fd, ll_file_data_slab, CFS_ALLOC_IO); + OBD_SLAB_ALLOC_PTR_GFP(fd, ll_file_data_slab, GFP_NOFS); + if (fd == NULL) + return NULL; + fd->fd_write_failed = false; + return fd; } @@ -95,8 +111,9 @@ static void ll_prepare_close(struct inode *inode, struct md_op_data *op_data, { ENTRY; - op_data->op_attr.ia_valid = ATTR_MODE | ATTR_ATIME_SET | - ATTR_MTIME_SET | ATTR_CTIME_SET; + op_data->op_attr.ia_valid = ATTR_MODE | ATTR_ATIME | ATTR_ATIME_SET | + ATTR_MTIME | ATTR_MTIME_SET | + ATTR_CTIME | ATTR_CTIME_SET; if (!(och->och_flags & FMODE_WRITE)) goto out; @@ -114,8 +131,9 @@ out: } static int ll_close_inode_openhandle(struct obd_export *md_exp, - struct inode *inode, - struct obd_client_handle *och) + struct inode *inode, + struct obd_client_handle *och, + const __u64 *data_version) { struct obd_export *exp = ll_i2mdexp(inode); struct md_op_data *op_data; @@ -139,7 +157,14 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp, if (op_data == NULL) GOTO(out, rc = -ENOMEM); // XXX We leak openhandle and request here. - ll_prepare_close(inode, op_data, och); + ll_prepare_close(inode, op_data, och); + if (data_version != NULL) { + /* Pass in data_version implies release. */ + op_data->op_bias |= MDS_HSM_RELEASE; + op_data->op_data_version = *data_version; + op_data->op_lease_handle = och->och_lease_handle; + op_data->op_attr.ia_valid |= ATTR_SIZE | ATTR_BLOCKS; + } epoch_close = (op_data->op_flags & MF_EPOCH_CLOSE); rc = md_close(md_exp, op_data, och->och_mod, &req); if (rc == -EAGAIN) { @@ -149,14 +174,17 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp, * OSTs and send setattr to back to MDS. */ rc = ll_som_update(inode, op_data); if (rc) { - CERROR("inode %lu mdc Size-on-MDS update failed: " - "rc = %d\n", inode->i_ino, rc); - rc = 0; - } - } else if (rc) { - CERROR("inode %lu mdc close failed: rc = %d\n", - inode->i_ino, rc); - } + CERROR("%s: inode "DFID" mdc Size-on-MDS update" + " failed: rc = %d\n", + ll_i2mdexp(inode)->exp_obd->obd_name, + PFID(ll_inode2fid(inode)), rc); + rc = 0; + } + } else if (rc) { + CERROR("%s: inode "DFID" mdc close failed: rc = %d\n", + ll_i2mdexp(inode)->exp_obd->obd_name, + PFID(ll_inode2fid(inode)), rc); + } /* DATA_MODIFIED flag was successfully sent on close, cancel data * modification flag. */ @@ -168,15 +196,23 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp, spin_unlock(&lli->lli_lock); } - ll_finish_md_op_data(op_data); - if (rc == 0) { rc = ll_objects_destroy(req, inode); if (rc) - CERROR("inode %lu ll_objects destroy: rc = %d\n", - inode->i_ino, rc); + CERROR("%s: inode "DFID + " ll_objects destroy: rc = %d\n", + ll_i2mdexp(inode)->exp_obd->obd_name, + PFID(ll_inode2fid(inode)), rc); } + if (rc == 0 && op_data->op_bias & MDS_HSM_RELEASE) { + struct mdt_body *body; + body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); + if (!(body->mbo_valid & OBD_MD_FLRELEASED)) + rc = -EBUSY; + } + + ll_finish_md_op_data(op_data); EXIT; out: @@ -194,48 +230,51 @@ out: return rc; } -int ll_md_real_close(struct inode *inode, int flags) +int ll_md_real_close(struct inode *inode, fmode_t fmode) { - struct ll_inode_info *lli = ll_i2info(inode); - struct obd_client_handle **och_p; - struct obd_client_handle *och; - __u64 *och_usecount; - int rc = 0; - ENTRY; + struct ll_inode_info *lli = ll_i2info(inode); + struct obd_client_handle **och_p; + struct obd_client_handle *och; + __u64 *och_usecount; + int rc = 0; + ENTRY; - if (flags & FMODE_WRITE) { - och_p = &lli->lli_mds_write_och; - och_usecount = &lli->lli_open_fd_write_count; - } else if (flags & FMODE_EXEC) { - och_p = &lli->lli_mds_exec_och; - och_usecount = &lli->lli_open_fd_exec_count; - } else { - LASSERT(flags & FMODE_READ); - och_p = &lli->lli_mds_read_och; - och_usecount = &lli->lli_open_fd_read_count; - } + if (fmode & FMODE_WRITE) { + och_p = &lli->lli_mds_write_och; + och_usecount = &lli->lli_open_fd_write_count; + } else if (fmode & FMODE_EXEC) { + och_p = &lli->lli_mds_exec_och; + och_usecount = &lli->lli_open_fd_exec_count; + } else { + LASSERT(fmode & FMODE_READ); + och_p = &lli->lli_mds_read_och; + och_usecount = &lli->lli_open_fd_read_count; + } mutex_lock(&lli->lli_och_mutex); - if (*och_usecount) { /* There are still users of this handle, so - skip freeing it. */ + if (*och_usecount > 0) { + /* There are still users of this handle, so skip + * freeing it. */ mutex_unlock(&lli->lli_och_mutex); - RETURN(0); - } - och=*och_p; - *och_p = NULL; + RETURN(0); + } + + och = *och_p; + *och_p = NULL; mutex_unlock(&lli->lli_och_mutex); - if (och) { /* There might be a race and somebody have freed this och - already */ - rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp, - inode, och); - } + if (och != NULL) { + /* There might be a race and this handle may already + * be closed. */ + rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp, + inode, och, NULL); + } - RETURN(rc); + RETURN(rc); } -int ll_md_close(struct obd_export *md_exp, struct inode *inode, - struct file *file) +static int ll_md_close(struct obd_export *md_exp, struct inode *inode, + struct file *file) { struct ll_file_data *fd = LUSTRE_FPRIVATE(file); struct ll_inode_info *lli = ll_i2info(inode); @@ -246,11 +285,29 @@ int ll_md_close(struct obd_export *md_exp, struct inode *inode, if (unlikely(fd->fd_flags & LL_FILE_GROUP_LOCKED)) ll_put_grouplock(inode, file, fd->fd_grouplock.cg_gid); + if (fd->fd_lease_och != NULL) { + bool lease_broken; + + /* Usually the lease is not released when the + * application crashed, we need to release here. */ + rc = ll_lease_close(fd->fd_lease_och, inode, &lease_broken); + CDEBUG(rc ? D_ERROR : D_INODE, "Clean up lease "DFID" %d/%d\n", + PFID(&lli->lli_fid), rc, lease_broken); + + fd->fd_lease_och = NULL; + } + + if (fd->fd_och != NULL) { + rc = ll_close_inode_openhandle(md_exp, inode, fd->fd_och, NULL); + fd->fd_och = NULL; + GOTO(out, rc); + } + /* Let's see if we have good enough OPEN lock on the file and if we can skip talking to MDS */ if (file->f_dentry->d_inode) { /* Can this ever be false? */ int lockmode; - int flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_TEST_LOCK; + __u64 flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_TEST_LOCK; struct lustre_handle lockh; struct inode *inode = file->f_dentry->d_inode; ldlm_policy_data_t policy = {.l_inodebits={MDS_INODELOCK_OPEN}}; @@ -282,11 +339,12 @@ int ll_md_close(struct obd_export *md_exp, struct inode *inode, file, file->f_dentry, file->f_dentry->d_name.name); } - LUSTRE_FPRIVATE(file) = NULL; - ll_file_data_put(fd); - ll_capa_close(inode); +out: + LUSTRE_FPRIVATE(file) = NULL; + ll_file_data_put(fd); + ll_capa_close(inode); - RETURN(rc); + RETURN(rc); } /* While this returns an error code, fput() the caller does not, so we need @@ -302,21 +360,21 @@ int ll_file_release(struct inode *inode, struct file *file) int rc; ENTRY; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, - inode->i_generation, inode); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", + PFID(ll_inode2fid(inode)), inode); #ifdef CONFIG_FS_POSIX_ACL - if (sbi->ll_flags & LL_SBI_RMT_CLIENT && - inode == inode->i_sb->s_root->d_inode) { - struct ll_file_data *fd = LUSTRE_FPRIVATE(file); - - LASSERT(fd != NULL); - if (unlikely(fd->fd_flags & LL_FILE_RMTACL)) { - fd->fd_flags &= ~LL_FILE_RMTACL; - rct_del(&sbi->ll_rct, cfs_curproc_pid()); - et_search_free(&sbi->ll_et, cfs_curproc_pid()); - } - } + if (sbi->ll_flags & LL_SBI_RMT_CLIENT && + inode == inode->i_sb->s_root->d_inode) { + struct ll_file_data *fd = LUSTRE_FPRIVATE(file); + + LASSERT(fd != NULL); + if (unlikely(fd->fd_flags & LL_FILE_RMTACL)) { + fd->fd_flags &= ~LL_FILE_RMTACL; + rct_del(&sbi->ll_rct, current_pid()); + et_search_free(&sbi->ll_et, current_pid()); + } + } #endif if (inode->i_sb->s_root != file->f_dentry) @@ -338,7 +396,8 @@ int ll_file_release(struct inode *inode, struct file *file) } if (!S_ISDIR(inode->i_mode)) { - lov_read_and_clear_async_rc(lli->lli_clob); + if (lli->lli_clob != NULL) + lov_read_and_clear_async_rc(lli->lli_clob); lli->lli_async_rc = 0; } @@ -350,78 +409,91 @@ int ll_file_release(struct inode *inode, struct file *file) RETURN(rc); } -static int ll_intent_file_open(struct file *file, void *lmm, - int lmmsize, struct lookup_intent *itp) +static int ll_intent_file_open(struct file *file, void *lmm, int lmmsize, + struct lookup_intent *itp) { - struct ll_sb_info *sbi = ll_i2sbi(file->f_dentry->d_inode); - struct dentry *parent = file->f_dentry->d_parent; - const char *name = file->f_dentry->d_name.name; - const int len = file->f_dentry->d_name.len; - struct md_op_data *op_data; - struct ptlrpc_request *req; - __u32 opc = LUSTRE_OPC_ANY; - int rc; - ENTRY; + struct dentry *de = file->f_dentry; + struct ll_sb_info *sbi = ll_i2sbi(de->d_inode); + struct dentry *parent = de->d_parent; + const char *name = NULL; + int len = 0; + struct md_op_data *op_data; + struct ptlrpc_request *req = NULL; + int rc; + ENTRY; - if (!parent) - RETURN(-ENOENT); - - /* Usually we come here only for NFSD, and we want open lock. - But we can also get here with pre 2.6.15 patchless kernels, and in - that case that lock is also ok */ - /* We can also get here if there was cached open handle in revalidate_it - * but it disappeared while we were getting from there to ll_file_open. - * But this means this file was closed and immediatelly opened which - * makes a good candidate for using OPEN lock */ - /* If lmmsize & lmm are not 0, we are just setting stripe info - * parameters. No need for the open lock */ - if (lmm == NULL && lmmsize == 0) { - itp->it_flags |= MDS_OPEN_LOCK; - if (itp->it_flags & FMODE_WRITE) - opc = LUSTRE_OPC_CREATE; - } + LASSERT(parent != NULL); + LASSERT(itp->it_flags & MDS_OPEN_BY_FID); - op_data = ll_prep_md_op_data(NULL, parent->d_inode, - file->f_dentry->d_inode, name, len, - O_RDWR, opc, NULL); - if (IS_ERR(op_data)) - RETURN(PTR_ERR(op_data)); + /* if server supports open-by-fid, or file name is invalid, don't pack + * name in open request */ + if (!(exp_connect_flags(sbi->ll_md_exp) & OBD_CONNECT_OPEN_BY_FID) && + lu_name_is_valid_2(de->d_name.name, de->d_name.len)) { + name = de->d_name.name; + len = de->d_name.len; + } - itp->it_flags |= MDS_OPEN_BY_FID; - rc = md_intent_lock(sbi->ll_md_exp, op_data, lmm, lmmsize, itp, - 0 /*unused */, &req, ll_md_blocking_ast, 0); - ll_finish_md_op_data(op_data); - if (rc == -ESTALE) { - /* reason for keep own exit path - don`t flood log - * with messages with -ESTALE errors. - */ - if (!it_disposition(itp, DISP_OPEN_OPEN) || - it_open_error(DISP_OPEN_OPEN, itp)) - GOTO(out, rc); - ll_release_openhandle(file->f_dentry, itp); - GOTO(out, rc); - } + op_data = ll_prep_md_op_data(NULL, parent->d_inode, de->d_inode, + name, len, 0, LUSTRE_OPC_ANY, NULL); + if (IS_ERR(op_data)) + RETURN(PTR_ERR(op_data)); + op_data->op_data = lmm; + op_data->op_data_size = lmmsize; - if (it_disposition(itp, DISP_LOOKUP_NEG)) - GOTO(out, rc = -ENOENT); + if (parent == de) { + /* + * Fixup for NFS export open. + * + * We're called in the context of NFS export, and parent + * unknown, use parent fid saved in lli_pfid which will + * be used by MDS to create data. + */ + struct ll_inode_info *lli = ll_i2info(de->d_inode); - if (rc != 0 || it_open_error(DISP_OPEN_OPEN, itp)) { - rc = rc ? rc : it_open_error(DISP_OPEN_OPEN, itp); - CDEBUG(D_VFSTRACE, "lock enqueue: err: %d\n", rc); - GOTO(out, rc); - } + spin_lock(&lli->lli_lock); + op_data->op_fid1 = lli->lli_pfid; + spin_unlock(&lli->lli_lock); + + LASSERT(fid_is_sane(&op_data->op_fid1)); + /** We ignore parent's capability temporary. */ + if (op_data->op_capa1 != NULL) { + capa_put(op_data->op_capa1); + op_data->op_capa1 = NULL; + } + } + + rc = md_intent_lock(sbi->ll_md_exp, op_data, itp, &req, + &ll_md_blocking_ast, 0); + ll_finish_md_op_data(op_data); + if (rc == -ESTALE) { + /* reason for keep own exit path - don`t flood log + * with messages with -ESTALE errors. + */ + if (!it_disposition(itp, DISP_OPEN_OPEN) || + it_open_error(DISP_OPEN_OPEN, itp)) + GOTO(out, rc); + ll_release_openhandle(de, itp); + GOTO(out, rc); + } - rc = ll_prep_inode(&file->f_dentry->d_inode, req, NULL, itp); - if (!rc && itp->d.lustre.it_lock_mode) - ll_set_lock_data(sbi->ll_md_exp, file->f_dentry->d_inode, - itp, NULL); + if (it_disposition(itp, DISP_LOOKUP_NEG)) + GOTO(out, rc = -ENOENT); + + if (rc != 0 || it_open_error(DISP_OPEN_OPEN, itp)) { + rc = rc ? rc : it_open_error(DISP_OPEN_OPEN, itp); + CDEBUG(D_VFSTRACE, "lock enqueue: err: %d\n", rc); + GOTO(out, rc); + } + + rc = ll_prep_inode(&de->d_inode, req, NULL, itp); + if (!rc && itp->d.lustre.it_lock_mode) + ll_set_lock_data(sbi->ll_md_exp, de->d_inode, itp, NULL); out: - ptlrpc_req_finished(itp->d.lustre.it_data); - it_clear_disposition(itp, DISP_ENQ_COMPLETE); - ll_intent_drop_lock(itp); + ptlrpc_req_finished(req); + ll_intent_drop_lock(itp); - RETURN(rc); + RETURN(rc); } /** @@ -438,28 +510,24 @@ void ll_ioepoch_open(struct ll_inode_info *lli, __u64 ioepoch) } } -static int ll_och_fill(struct obd_export *md_exp, struct ll_inode_info *lli, - struct lookup_intent *it, struct obd_client_handle *och) +static int ll_och_fill(struct obd_export *md_exp, struct lookup_intent *it, + struct obd_client_handle *och) { - struct ptlrpc_request *req = it->d.lustre.it_data; - struct mdt_body *body; - - LASSERT(och); - - body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); - LASSERT(body != NULL); /* reply already checked out */ + struct ptlrpc_request *req = it->d.lustre.it_data; + struct mdt_body *body; - memcpy(&och->och_fh, &body->handle, sizeof(body->handle)); - och->och_magic = OBD_CLIENT_HANDLE_MAGIC; - och->och_fid = lli->lli_fid; - och->och_flags = it->it_flags; - ll_ioepoch_open(lli, body->ioepoch); + body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); + och->och_fh = body->mbo_handle; + och->och_fid = body->mbo_fid1; + och->och_lease_handle.cookie = it->d.lustre.it_lock_handle; + och->och_magic = OBD_CLIENT_HANDLE_MAGIC; + och->och_flags = it->it_flags; - return md_set_open_replay_data(md_exp, och, req); + return md_set_open_replay_data(md_exp, och, it); } -int ll_local_open(struct file *file, struct lookup_intent *it, - struct ll_file_data *fd, struct obd_client_handle *och) +static int ll_local_open(struct file *file, struct lookup_intent *it, + struct ll_file_data *fd, struct obd_client_handle *och) { struct inode *inode = file->f_dentry->d_inode; struct ll_inode_info *lli = ll_i2info(inode); @@ -474,21 +542,23 @@ int ll_local_open(struct file *file, struct lookup_intent *it, struct mdt_body *body; int rc; - rc = ll_och_fill(ll_i2sbi(inode)->ll_md_exp, lli, it, och); - if (rc) - RETURN(rc); + rc = ll_och_fill(ll_i2sbi(inode)->ll_md_exp, it, och); + if (rc != 0) + RETURN(rc); - body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); - if ((it->it_flags & FMODE_WRITE) && - (body->valid & OBD_MD_FLSIZE)) - CDEBUG(D_INODE, "Epoch "LPU64" opened on "DFID"\n", - lli->lli_ioepoch, PFID(&lli->lli_fid)); - } + body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); + ll_ioepoch_open(lli, body->mbo_ioepoch); + } - LUSTRE_FPRIVATE(file) = fd; - ll_readahead_init(inode, &fd->fd_ras); - fd->fd_omode = it->it_flags; - RETURN(0); + LUSTRE_FPRIVATE(file) = fd; + ll_readahead_init(inode, &fd->fd_ras); + fd->fd_omode = it->it_flags & (FMODE_READ | FMODE_WRITE | FMODE_EXEC); + + /* ll_cl_context initialize */ + rwlock_init(&fd->fd_lock); + INIT_LIST_HEAD(&fd->fd_lccs); + + RETURN(0); } /* Open a file, and (for the very first open) create objects on the OSTs at @@ -515,27 +585,27 @@ int ll_file_open(struct inode *inode, struct file *file) int rc = 0, opendir_set = 0; ENTRY; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), flags %o\n", inode->i_ino, - inode->i_generation, inode, file->f_flags); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), flags %o\n", + PFID(ll_inode2fid(inode)), inode, file->f_flags); it = file->private_data; /* XXX: compat macro */ file->private_data = NULL; /* prevent ll_local_open assertion */ - fd = ll_file_data_get(); - if (fd == NULL) - GOTO(out_och_free, rc = -ENOMEM); + fd = ll_file_data_get(); + if (fd == NULL) + GOTO(out_openerr, rc = -ENOMEM); - fd->fd_file = file; - if (S_ISDIR(inode->i_mode)) { + fd->fd_file = file; + if (S_ISDIR(inode->i_mode)) { spin_lock(&lli->lli_sa_lock); if (lli->lli_opendir_key == NULL && lli->lli_sai == NULL && lli->lli_opendir_pid == 0) { lli->lli_opendir_key = fd; - lli->lli_opendir_pid = cfs_curproc_pid(); + lli->lli_opendir_pid = current_pid(); opendir_set = 1; } spin_unlock(&lli->lli_sa_lock); - } + } if (inode->i_sb->s_root == file->f_dentry) { LUSTRE_FPRIVATE(file) = fd; @@ -614,9 +684,19 @@ restart: would attempt to grab och_mutex as well, that would result in a deadlock */ mutex_unlock(&lli->lli_och_mutex); - it->it_create_mode |= M_CHECK_STALE; + /* + * Normally called under two situations: + * 1. NFS export. + * 2. revalidate with IT_OPEN (revalidate doesn't + * execute this intent any more). + * + * Always fetch MDS_OPEN_LOCK if this is not setstripe. + * + * Always specify MDS_OPEN_BY_FID because we don't want + * to get file with different fid. + */ + it->it_flags |= MDS_OPEN_LOCK | MDS_OPEN_BY_FID; rc = ll_intent_file_open(file, NULL, 0, it); - it->it_create_mode &= ~M_CHECK_STALE; if (rc) GOTO(out_openerr, rc); @@ -633,16 +713,18 @@ restart: * (bug 3430) */ /* XXX (green): Should not we bail out on any error here, not * just open error? */ - rc = it_open_error(DISP_OPEN_OPEN, it); - if (rc) - GOTO(out_och_free, rc); + rc = it_open_error(DISP_OPEN_OPEN, it); + if (rc != 0) + GOTO(out_och_free, rc); - LASSERT(it_disposition(it, DISP_ENQ_OPEN_REF)); + LASSERTF(it_disposition(it, DISP_ENQ_OPEN_REF), + "inode %p: disposition %x, status %d\n", inode, + it_disposition(it, ~0), it->d.lustre.it_status); - rc = ll_local_open(file, it, fd, *och_p); - if (rc) - GOTO(out_och_free, rc); - } + rc = ll_local_open(file, it, fd, *och_p); + if (rc) + GOTO(out_och_free, rc); + } mutex_unlock(&lli->lli_och_mutex); fd = NULL; @@ -654,15 +736,14 @@ restart: ll_capa_open(inode); - if (!lli->lli_has_smd) { - if (file->f_flags & O_LOV_DELAY_CREATE || - !(file->f_mode & FMODE_WRITE)) { - CDEBUG(D_INODE, "object creation was delayed\n"); - GOTO(out_och_free, rc); - } - } - file->f_flags &= ~O_LOV_DELAY_CREATE; - GOTO(out_och_free, rc); + if (!lli->lli_has_smd && + (cl_is_lov_delay_create(file->f_flags) || + (file->f_mode & FMODE_WRITE) == 0)) { + CDEBUG(D_INODE, "object creation was delayed\n"); + GOTO(out_och_free, rc); + } + cl_lov_delay_create_clear(&file->f_flags); + GOTO(out_och_free, rc); out_och_free: if (rc) { @@ -690,10 +771,205 @@ out_openerr: return rc; } +static int ll_md_blocking_lease_ast(struct ldlm_lock *lock, + struct ldlm_lock_desc *desc, void *data, int flag) +{ + int rc; + struct lustre_handle lockh; + ENTRY; + + switch (flag) { + case LDLM_CB_BLOCKING: + ldlm_lock2handle(lock, &lockh); + rc = ldlm_cli_cancel(&lockh, LCF_ASYNC); + if (rc < 0) { + CDEBUG(D_INODE, "ldlm_cli_cancel: %d\n", rc); + RETURN(rc); + } + break; + case LDLM_CB_CANCELING: + /* do nothing */ + break; + } + RETURN(0); +} + +/** + * Acquire a lease and open the file. + */ +static struct obd_client_handle * +ll_lease_open(struct inode *inode, struct file *file, fmode_t fmode, + __u64 open_flags) +{ + struct lookup_intent it = { .it_op = IT_OPEN }; + struct ll_sb_info *sbi = ll_i2sbi(inode); + struct md_op_data *op_data; + struct ptlrpc_request *req = NULL; + struct lustre_handle old_handle = { 0 }; + struct obd_client_handle *och = NULL; + int rc; + int rc2; + ENTRY; + + if (fmode != FMODE_WRITE && fmode != FMODE_READ) + RETURN(ERR_PTR(-EINVAL)); + + if (file != NULL) { + struct ll_inode_info *lli = ll_i2info(inode); + struct ll_file_data *fd = LUSTRE_FPRIVATE(file); + struct obd_client_handle **och_p; + __u64 *och_usecount; + + if (!(fmode & file->f_mode) || (file->f_mode & FMODE_EXEC)) + RETURN(ERR_PTR(-EPERM)); + + /* Get the openhandle of the file */ + rc = -EBUSY; + mutex_lock(&lli->lli_och_mutex); + if (fd->fd_lease_och != NULL) { + mutex_unlock(&lli->lli_och_mutex); + RETURN(ERR_PTR(rc)); + } + + if (fd->fd_och == NULL) { + if (file->f_mode & FMODE_WRITE) { + LASSERT(lli->lli_mds_write_och != NULL); + och_p = &lli->lli_mds_write_och; + och_usecount = &lli->lli_open_fd_write_count; + } else { + LASSERT(lli->lli_mds_read_och != NULL); + och_p = &lli->lli_mds_read_och; + och_usecount = &lli->lli_open_fd_read_count; + } + if (*och_usecount == 1) { + fd->fd_och = *och_p; + *och_p = NULL; + *och_usecount = 0; + rc = 0; + } + } + mutex_unlock(&lli->lli_och_mutex); + if (rc < 0) /* more than 1 opener */ + RETURN(ERR_PTR(rc)); + + LASSERT(fd->fd_och != NULL); + old_handle = fd->fd_och->och_fh; + } + + OBD_ALLOC_PTR(och); + if (och == NULL) + RETURN(ERR_PTR(-ENOMEM)); + + op_data = ll_prep_md_op_data(NULL, inode, inode, NULL, 0, 0, + LUSTRE_OPC_ANY, NULL); + if (IS_ERR(op_data)) + GOTO(out, rc = PTR_ERR(op_data)); + + /* To tell the MDT this openhandle is from the same owner */ + op_data->op_handle = old_handle; + + it.it_flags = fmode | open_flags; + it.it_flags |= MDS_OPEN_LOCK | MDS_OPEN_BY_FID | MDS_OPEN_LEASE; + rc = md_intent_lock(sbi->ll_md_exp, op_data, &it, &req, + &ll_md_blocking_lease_ast, + /* LDLM_FL_NO_LRU: To not put the lease lock into LRU list, otherwise + * it can be cancelled which may mislead applications that the lease is + * broken; + * LDLM_FL_EXCL: Set this flag so that it won't be matched by normal + * open in ll_md_blocking_ast(). Otherwise as ll_md_blocking_lease_ast + * doesn't deal with openhandle, so normal openhandle will be leaked. */ + LDLM_FL_NO_LRU | LDLM_FL_EXCL); + ll_finish_md_op_data(op_data); + ptlrpc_req_finished(req); + if (rc < 0) + GOTO(out_release_it, rc); + + if (it_disposition(&it, DISP_LOOKUP_NEG)) + GOTO(out_release_it, rc = -ENOENT); + + rc = it_open_error(DISP_OPEN_OPEN, &it); + if (rc) + GOTO(out_release_it, rc); + + LASSERT(it_disposition(&it, DISP_ENQ_OPEN_REF)); + ll_och_fill(sbi->ll_md_exp, &it, och); + + if (!it_disposition(&it, DISP_OPEN_LEASE)) /* old server? */ + GOTO(out_close, rc = -EOPNOTSUPP); + + /* already get lease, handle lease lock */ + ll_set_lock_data(sbi->ll_md_exp, inode, &it, NULL); + if (it.d.lustre.it_lock_mode == 0 || + it.d.lustre.it_lock_bits != MDS_INODELOCK_OPEN) { + /* open lock must return for lease */ + CERROR(DFID "lease granted but no open lock, %d/"LPU64".\n", + PFID(ll_inode2fid(inode)), it.d.lustre.it_lock_mode, + it.d.lustre.it_lock_bits); + GOTO(out_close, rc = -EPROTO); + } + + ll_intent_release(&it); + RETURN(och); + +out_close: + /* Cancel open lock */ + if (it.d.lustre.it_lock_mode != 0) { + ldlm_lock_decref_and_cancel(&och->och_lease_handle, + it.d.lustre.it_lock_mode); + it.d.lustre.it_lock_mode = 0; + och->och_lease_handle.cookie = 0ULL; + } + rc2 = ll_close_inode_openhandle(sbi->ll_md_exp, inode, och, NULL); + if (rc2 < 0) + CERROR("%s: error closing file "DFID": %d\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(&ll_i2info(inode)->lli_fid), rc2); + och = NULL; /* och has been freed in ll_close_inode_openhandle() */ +out_release_it: + ll_intent_release(&it); +out: + if (och != NULL) + OBD_FREE_PTR(och); + RETURN(ERR_PTR(rc)); +} + +/** + * Release lease and close the file. + * It will check if the lease has ever broken. + */ +static int ll_lease_close(struct obd_client_handle *och, struct inode *inode, + bool *lease_broken) +{ + struct ldlm_lock *lock; + bool cancelled = true; + int rc; + ENTRY; + + lock = ldlm_handle2lock(&och->och_lease_handle); + if (lock != NULL) { + lock_res_and_lock(lock); + cancelled = ldlm_is_cancel(lock); + unlock_res_and_lock(lock); + LDLM_LOCK_PUT(lock); + } + + CDEBUG(D_INODE, "lease for "DFID" broken? %d\n", + PFID(&ll_i2info(inode)->lli_fid), cancelled); + + if (!cancelled) + ldlm_cli_cancel(&och->och_lease_handle, 0); + if (lease_broken != NULL) + *lease_broken = cancelled; + + rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp, inode, och, + NULL); + RETURN(rc); +} + /* Fills the obdo with the attributes for the lsm */ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp, - struct obd_capa *capa, struct obdo *obdo, - __u64 ioepoch, int sync) + struct obd_capa *capa, struct obdo *obdo, + __u64 ioepoch, int dv_flags) { struct ptlrpc_request_set *set; struct obd_info oinfo = { { { 0 } } }; @@ -705,8 +981,7 @@ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp, oinfo.oi_md = lsm; oinfo.oi_oa = obdo; - oinfo.oi_oa->o_id = lsm->lsm_object_id; - oinfo.oi_oa->o_seq = lsm->lsm_object_seq; + oinfo.oi_oa->o_oi = lsm->lsm_oi; oinfo.oi_oa->o_mode = S_IFREG; oinfo.oi_oa->o_ioepoch = ioepoch; oinfo.oi_oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | @@ -716,10 +991,12 @@ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp, OBD_MD_FLGROUP | OBD_MD_FLEPOCH | OBD_MD_FLDATAVERSION; oinfo.oi_capa = capa; - if (sync) { - oinfo.oi_oa->o_valid |= OBD_MD_FLFLAGS; - oinfo.oi_oa->o_flags |= OBD_FL_SRVLOCK; - } + if (dv_flags & (LL_DV_WR_FLUSH | LL_DV_RD_FLUSH)) { + oinfo.oi_oa->o_valid |= OBD_MD_FLFLAGS; + oinfo.oi_oa->o_flags |= OBD_FL_SRVLOCK; + if (dv_flags & LL_DV_WR_FLUSH) + oinfo.oi_oa->o_flags |= OBD_FL_FLUSH; + } set = ptlrpc_prep_set(); if (set == NULL) { @@ -731,12 +1008,17 @@ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp, rc = ptlrpc_set_wait(set); ptlrpc_set_destroy(set); } - if (rc == 0) - oinfo.oi_oa->o_valid &= (OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ | - OBD_MD_FLATIME | OBD_MD_FLMTIME | - OBD_MD_FLCTIME | OBD_MD_FLSIZE | - OBD_MD_FLDATAVERSION); - RETURN(rc); + if (rc == 0) { + oinfo.oi_oa->o_valid &= (OBD_MD_FLBLOCKS | OBD_MD_FLBLKSZ | + OBD_MD_FLATIME | OBD_MD_FLMTIME | + OBD_MD_FLCTIME | OBD_MD_FLSIZE | + OBD_MD_FLDATAVERSION | OBD_MD_FLFLAGS); + if (dv_flags & LL_DV_WR_FLUSH && + !(oinfo.oi_oa->o_valid & OBD_MD_FLFLAGS && + oinfo.oi_oa->o_flags & OBD_FL_FLUSH)) + RETURN(-ENOTSUPP); + } + RETURN(rc); } /** @@ -753,13 +1035,14 @@ int ll_inode_getattr(struct inode *inode, struct obdo *obdo, lsm = ccc_inode_lsm_get(inode); rc = ll_lsm_getattr(lsm, ll_i2dtexp(inode), - capa, obdo, ioepoch, sync); + capa, obdo, ioepoch, sync ? LL_DV_RD_FLUSH : 0); capa_put(capa); if (rc == 0) { + struct ost_id *oi = lsm ? &lsm->lsm_oi : &obdo->o_oi; + obdo_refresh_inode(inode, obdo, obdo->o_valid); - CDEBUG(D_INODE, - "objid "LPX64" size %llu, blocks %llu, blksize %lu\n", - lsm ? lsm->lsm_object_id : 0, i_size_read(inode), + CDEBUG(D_INODE, "objid "DOSTID" size %llu, blocks %llu," + " blksize %lu\n", POSTID(oi), i_size_read(inode), (unsigned long long)inode->i_blocks, (unsigned long)ll_inode_blksize(inode)); } @@ -829,14 +1112,43 @@ int ll_glimpse_ioctl(struct ll_sb_info *sbi, struct lov_stripe_md *lsm, return rc; } -void ll_io_init(struct cl_io *io, const struct file *file, int write) +static bool file_is_noatime(const struct file *file) +{ + const struct vfsmount *mnt = file->f_path.mnt; + const struct inode *inode = file->f_path.dentry->d_inode; + + /* Adapted from file_accessed() and touch_atime().*/ + if (file->f_flags & O_NOATIME) + return true; + + if (inode->i_flags & S_NOATIME) + return true; + + if (IS_NOATIME(inode)) + return true; + + if (mnt->mnt_flags & (MNT_NOATIME | MNT_READONLY)) + return true; + + if ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)) + return true; + + if ((inode->i_sb->s_flags & MS_NODIRATIME) && S_ISDIR(inode->i_mode)) + return true; + + return false; +} + +static void ll_io_init(struct cl_io *io, const struct file *file, int write) { struct inode *inode = file->f_dentry->d_inode; io->u.ci_rw.crw_nonblock = file->f_flags & O_NONBLOCK; if (write) { io->u.ci_wr.wr_append = !!(file->f_flags & O_APPEND); - io->u.ci_wr.wr_sync = file->f_flags & O_SYNC || IS_SYNC(inode); + io->u.ci_wr.wr_sync = file->f_flags & O_SYNC || + file->f_flags & O_DIRECT || + IS_SYNC(inode); } io->ci_obj = ll_i2info(inode)->lli_clob; io->ci_lockreq = CILR_MAYBE; @@ -846,6 +1158,8 @@ void ll_io_init(struct cl_io *io, const struct file *file, int write) } else if (file->f_flags & O_APPEND) { io->ci_lockreq = CILR_MANDATORY; } + + io->ci_noatime = file_is_noatime(file); } static ssize_t @@ -855,10 +1169,14 @@ ll_file_io_generic(const struct lu_env *env, struct vvp_io_args *args, { struct ll_inode_info *lli = ll_i2info(file->f_dentry->d_inode); struct ll_file_data *fd = LUSTRE_FPRIVATE(file); - struct cl_io *io; - ssize_t result; - ENTRY; + struct cl_io *io; + ssize_t result; + ENTRY; + CDEBUG(D_VFSTRACE, "file: %s, type: %d ppos: "LPU64", count: %zd\n", + file->f_dentry->d_name.name, iot, *ppos, count); + +restart: io = ccc_env_thread_io(env); ll_io_init(io, file, iot == CIT_WRITE); @@ -867,30 +1185,25 @@ ll_file_io_generic(const struct lu_env *env, struct vvp_io_args *args, struct ccc_io *cio = ccc_env_io(env); int write_mutex_locked = 0; - cio->cui_fd = LUSTRE_FPRIVATE(file); - vio->cui_io_subtype = args->via_io_subtype; + cio->cui_fd = LUSTRE_FPRIVATE(file); + vio->cui_io_subtype = args->via_io_subtype; + + ll_cl_add(file, env, io); switch (vio->cui_io_subtype) { case IO_NORMAL: cio->cui_iov = args->u.normal.via_iov; cio->cui_nrsegs = args->u.normal.via_nrsegs; cio->cui_tot_nrsegs = cio->cui_nrsegs; -#ifndef HAVE_FILE_WRITEV cio->cui_iocb = args->u.normal.via_iocb; -#endif if ((iot == CIT_WRITE) && !(cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) { if (mutex_lock_interruptible(&lli-> - lli_write_mutex)) - GOTO(out, result = -ERESTARTSYS); - write_mutex_locked = 1; - } else if (iot == CIT_READ) { - down_read(&lli->lli_trunc_sem); - } - break; - case IO_SENDFILE: - vio->u.sendfile.cui_actor = args->u.sendfile.via_actor; - vio->u.sendfile.cui_target = args->u.sendfile.via_target; + lli_write_mutex)) + GOTO(out, result = -ERESTARTSYS); + write_mutex_locked = 1; + } + down_read(&lli->lli_trunc_sem); break; case IO_SPLICE: vio->u.splice.cui_pipe = args->u.splice.via_pipe; @@ -901,10 +1214,11 @@ ll_file_io_generic(const struct lu_env *env, struct vvp_io_args *args, LBUG(); } result = cl_io_loop(env, io); - if (write_mutex_locked) - mutex_unlock(&lli->lli_write_mutex); - else if (args->via_io_subtype == IO_NORMAL && iot == CIT_READ) + if (args->via_io_subtype == IO_NORMAL) up_read(&lli->lli_trunc_sem); + if (write_mutex_locked) + mutex_unlock(&lli->lli_write_mutex); + ll_cl_remove(file, env); } else { /* cl_io_rw_init() handled IO */ result = io->ci_result; @@ -917,6 +1231,15 @@ ll_file_io_generic(const struct lu_env *env, struct vvp_io_args *args, GOTO(out, result); out: cl_io_fini(env, io); + /* If any bit been read/written (result != 0), we just return + * short read/write instead of restart io. */ + if ((result == 0 || result == -ENODATA) && io->ci_need_restart) { + CDEBUG(D_VFSTRACE, "Restart %s on %s from %lld, count:%zd\n", + iot == CIT_READ ? "read" : "write", + file->f_dentry->d_name.name, *ppos, count); + LASSERTF(io->ci_nob == 0, "%zd", io->ci_nob); + goto restart; + } if (iot == CIT_READ) { if (result >= 0) @@ -927,10 +1250,11 @@ out: ll_stats_ops_tally(ll_i2sbi(file->f_dentry->d_inode), LPROC_LL_WRITE_BYTES, result); fd->fd_write_failed = false; - } else { + } else if (result != -ERESTARTSYS) { fd->fd_write_failed = true; } } + CDEBUG(D_VFSTRACE, "iot: %d, result: %zd\n", iot, result); return result; } @@ -967,56 +1291,6 @@ static int ll_file_get_iov_count(const struct iovec *iov, return 0; } -#ifdef HAVE_FILE_READV -static ssize_t ll_file_readv(struct file *file, const struct iovec *iov, - unsigned long nr_segs, loff_t *ppos) -{ - struct lu_env *env; - struct vvp_io_args *args; - size_t count; - ssize_t result; - int refcheck; - ENTRY; - - result = ll_file_get_iov_count(iov, &nr_segs, &count); - if (result) - RETURN(result); - - env = cl_env_get(&refcheck); - if (IS_ERR(env)) - RETURN(PTR_ERR(env)); - - args = vvp_env_args(env, IO_NORMAL); - args->u.normal.via_iov = (struct iovec *)iov; - args->u.normal.via_nrsegs = nr_segs; - - result = ll_file_io_generic(env, args, file, CIT_READ, ppos, count); - cl_env_put(env, &refcheck); - RETURN(result); -} - -static ssize_t ll_file_read(struct file *file, char *buf, size_t count, - loff_t *ppos) -{ - struct lu_env *env; - struct iovec *local_iov; - ssize_t result; - int refcheck; - ENTRY; - - env = cl_env_get(&refcheck); - if (IS_ERR(env)) - RETURN(PTR_ERR(env)); - - local_iov = &vvp_env_info(env)->vti_local_iov; - local_iov->iov_base = (void __user *)buf; - local_iov->iov_len = count; - result = ll_file_readv(file, local_iov, 1, ppos); - cl_env_put(env, &refcheck); - RETURN(result); -} - -#else static ssize_t ll_file_aio_read(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) { @@ -1066,7 +1340,11 @@ static ssize_t ll_file_read(struct file *file, char *buf, size_t count, local_iov->iov_len = count; init_sync_kiocb(kiocb, file); kiocb->ki_pos = *ppos; +#ifdef HAVE_KIOCB_KI_LEFT kiocb->ki_left = count; +#else + kiocb->ki_nbytes = count; +#endif result = ll_file_aio_read(kiocb, local_iov, 1, kiocb->ki_pos); *ppos = kiocb->ki_pos; @@ -1074,62 +1352,11 @@ static ssize_t ll_file_read(struct file *file, char *buf, size_t count, cl_env_put(env, &refcheck); RETURN(result); } -#endif /* * Write to a file (through the page cache). + * AIO stuff */ -#ifdef HAVE_FILE_WRITEV -static ssize_t ll_file_writev(struct file *file, const struct iovec *iov, - unsigned long nr_segs, loff_t *ppos) -{ - struct lu_env *env; - struct vvp_io_args *args; - size_t count; - ssize_t result; - int refcheck; - ENTRY; - - result = ll_file_get_iov_count(iov, &nr_segs, &count); - if (result) - RETURN(result); - - env = cl_env_get(&refcheck); - if (IS_ERR(env)) - RETURN(PTR_ERR(env)); - - args = vvp_env_args(env, IO_NORMAL); - args->u.normal.via_iov = (struct iovec *)iov; - args->u.normal.via_nrsegs = nr_segs; - - result = ll_file_io_generic(env, args, file, CIT_WRITE, ppos, count); - cl_env_put(env, &refcheck); - RETURN(result); -} - -static ssize_t ll_file_write(struct file *file, const char *buf, size_t count, - loff_t *ppos) -{ - struct lu_env *env; - struct iovec *local_iov; - ssize_t result; - int refcheck; - ENTRY; - - env = cl_env_get(&refcheck); - if (IS_ERR(env)) - RETURN(PTR_ERR(env)); - - local_iov = &vvp_env_info(env)->vti_local_iov; - local_iov->iov_base = (void __user *)buf; - local_iov->iov_len = count; - - result = ll_file_writev(file, local_iov, 1, ppos); - cl_env_put(env, &refcheck); - RETURN(result); -} - -#else /* AIO stuff */ static ssize_t ll_file_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t pos) { @@ -1179,7 +1406,11 @@ static ssize_t ll_file_write(struct file *file, const char *buf, size_t count, local_iov->iov_len = count; init_sync_kiocb(kiocb, file); kiocb->ki_pos = *ppos; +#ifdef HAVE_KIOCB_KI_LEFT kiocb->ki_left = count; +#else + kiocb->ki_nbytes = count; +#endif result = ll_file_aio_write(kiocb, local_iov, 1, kiocb->ki_pos); *ppos = kiocb->ki_pos; @@ -1187,37 +1418,7 @@ static ssize_t ll_file_write(struct file *file, const char *buf, size_t count, cl_env_put(env, &refcheck); RETURN(result); } -#endif - -#ifdef HAVE_KERNEL_SENDFILE -/* - * Send file content (through pagecache) somewhere with helper - */ -static ssize_t ll_file_sendfile(struct file *in_file, loff_t *ppos,size_t count, - read_actor_t actor, void *target) -{ - struct lu_env *env; - struct vvp_io_args *args; - ssize_t result; - int refcheck; - ENTRY; - - env = cl_env_get(&refcheck); - if (IS_ERR(env)) - RETURN(PTR_ERR(env)); - - args = vvp_env_args(env, IO_SENDFILE); - args->u.sendfile.via_target = target; - args->u.sendfile.via_actor = actor; - - result = ll_file_io_generic(env, args, in_file, CIT_READ, ppos, count); - cl_env_put(env, &refcheck); - RETURN(result); -} -#endif - -#ifdef HAVE_KERNEL_SPLICE_READ /* * Send file content (through pagecache) somewhere with helper */ @@ -1243,9 +1444,8 @@ static ssize_t ll_file_splice_read(struct file *in_file, loff_t *ppos, cl_env_put(env, &refcheck); RETURN(result); } -#endif -static int ll_lov_recreate(struct inode *inode, obd_id id, obd_seq seq, +static int ll_lov_recreate(struct inode *inode, struct ost_id *oi, obd_count ost_idx) { struct obd_export *exp = ll_i2dtexp(inode); @@ -1261,7 +1461,7 @@ static int ll_lov_recreate(struct inode *inode, obd_id id, obd_seq seq, RETURN(-ENOMEM); lsm = ccc_inode_lsm_get(inode); - if (lsm == NULL) + if (!lsm_has_objects(lsm)) GOTO(out, rc = -ENOENT); lsm_size = sizeof(*lsm) + (sizeof(struct lov_oinfo) * @@ -1271,8 +1471,7 @@ static int ll_lov_recreate(struct inode *inode, obd_id id, obd_seq seq, if (lsm2 == NULL) GOTO(out, rc = -ENOMEM); - oa->o_id = id; - oa->o_seq = seq; + oa->o_oi = *oi; oa->o_nlink = ost_idx; oa->o_flags |= OBD_FL_RECREATE_OBJS; oa->o_valid = OBD_MD_FLID | OBD_MD_FLFLAGS | OBD_MD_FLGROUP; @@ -1295,6 +1494,7 @@ out: static int ll_lov_recreate_obj(struct inode *inode, unsigned long arg) { struct ll_recreate_obj ucreat; + struct ost_id oi; ENTRY; if (!cfs_capable(CFS_CAP_SYS_ADMIN)) @@ -1304,14 +1504,15 @@ static int ll_lov_recreate_obj(struct inode *inode, unsigned long arg) sizeof(ucreat))) RETURN(-EFAULT); - RETURN(ll_lov_recreate(inode, ucreat.lrc_id, 0, - ucreat.lrc_ost_idx)); + ostid_set_seq_mdt0(&oi); + ostid_set_id(&oi, ucreat.lrc_id); + RETURN(ll_lov_recreate(inode, &oi, ucreat.lrc_ost_idx)); } static int ll_lov_recreate_fid(struct inode *inode, unsigned long arg) { struct lu_fid fid; - obd_id id; + struct ost_id oi; obd_count ost_idx; ENTRY; @@ -1321,13 +1522,14 @@ static int ll_lov_recreate_fid(struct inode *inode, unsigned long arg) if (copy_from_user(&fid, (struct lu_fid *)arg, sizeof(fid))) RETURN(-EFAULT); - id = fid_oid(&fid) | ((fid_seq(&fid) & 0xffff) << 32); + fid_to_ostid(&fid, &oi); ost_idx = (fid_seq(&fid) >> 16) & 0xffff; - RETURN(ll_lov_recreate(inode, id, 0, ost_idx)); + RETURN(ll_lov_recreate(inode, &oi, ost_idx)); } int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file, - int flags, struct lov_user_md *lum, int lum_size) + __u64 flags, struct lov_user_md *lum, + int lum_size) { struct lov_stripe_md *lsm = NULL; struct lookup_intent oit = {.it_op = IT_OPEN, .it_flags = flags}; @@ -1337,25 +1539,28 @@ int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file, lsm = ccc_inode_lsm_get(inode); if (lsm != NULL) { ccc_inode_lsm_put(inode, lsm); - CDEBUG(D_IOCTL, "stripe already exists for ino %lu\n", - inode->i_ino); - RETURN(-EEXIST); + CDEBUG(D_IOCTL, "stripe already exists for inode "DFID"\n", + PFID(ll_inode2fid(inode))); + GOTO(out, rc = -EEXIST); } ll_inode_size_lock(inode); - rc = ll_intent_file_open(file, lum, lum_size, &oit); - if (rc) - GOTO(out, rc); - rc = oit.d.lustre.it_status; - if (rc < 0) - GOTO(out_req_free, rc); + oit.it_flags |= MDS_OPEN_BY_FID; + rc = ll_intent_file_open(file, lum, lum_size, &oit); + if (rc) + GOTO(out_unlock, rc); + rc = oit.d.lustre.it_status; + if (rc < 0) + GOTO(out_req_free, rc); - ll_release_openhandle(file->f_dentry, &oit); + ll_release_openhandle(file->f_dentry, &oit); - out: +out_unlock: ll_inode_size_unlock(inode); ll_intent_release(&oit); ccc_inode_lsm_put(inode, lsm); +out: + cl_lov_delay_create_clear(&file->f_flags); RETURN(rc); out_req_free: ptlrpc_req_finished((struct ptlrpc_request *) oit.d.lustre.it_data); @@ -1373,9 +1578,9 @@ int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename, struct md_op_data *op_data; int rc, lmmsize; - rc = ll_get_max_mdsize(sbi, &lmmsize); - if (rc) - RETURN(rc); + rc = ll_get_default_mdsize(sbi, &lmmsize); + if (rc) + RETURN(rc); op_data = ll_prep_md_op_data(NULL, inode, NULL, filename, strlen(filename), lmmsize, @@ -1395,9 +1600,9 @@ int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename, body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); LASSERT(body != NULL); /* checked by mdc_getattr_name */ - lmmsize = body->eadatasize; + lmmsize = body->mbo_eadatasize; - if (!(body->valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) || + if (!(body->mbo_valid & (OBD_MD_FLEASIZE | OBD_MD_FLDIREA)) || lmmsize == 0) { GOTO(out, rc = -ENODATA); } @@ -1416,20 +1621,27 @@ int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename, * passing it to userspace. */ if (LOV_MAGIC != cpu_to_le32(LOV_MAGIC)) { + int stripe_count; + + stripe_count = le16_to_cpu(lmm->lmm_stripe_count); + if (le32_to_cpu(lmm->lmm_pattern) & LOV_PATTERN_F_RELEASED) + stripe_count = 0; + /* if function called for directory - we should * avoid swab not existent lsm objects */ if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V1)) { lustre_swab_lov_user_md_v1((struct lov_user_md_v1 *)lmm); - if (S_ISREG(body->mode)) - lustre_swab_lov_user_md_objects( - ((struct lov_user_md_v1 *)lmm)->lmm_objects, - ((struct lov_user_md_v1 *)lmm)->lmm_stripe_count); - } else if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V3)) { - lustre_swab_lov_user_md_v3((struct lov_user_md_v3 *)lmm); - if (S_ISREG(body->mode)) + if (S_ISREG(body->mbo_mode)) + lustre_swab_lov_user_md_objects( + ((struct lov_user_md_v1 *)lmm)->lmm_objects, + stripe_count); + } else if (lmm->lmm_magic == cpu_to_le32(LOV_MAGIC_V3)) { + lustre_swab_lov_user_md_v3( + (struct lov_user_md_v3 *)lmm); + if (S_ISREG(body->mbo_mode)) lustre_swab_lov_user_md_objects( ((struct lov_user_md_v3 *)lmm)->lmm_objects, - ((struct lov_user_md_v3 *)lmm)->lmm_stripe_count); + stripe_count); } } @@ -1443,7 +1655,7 @@ out: static int ll_lov_setea(struct inode *inode, struct file *file, unsigned long arg) { - int flags = MDS_OPEN_HAS_OBJS | FMODE_WRITE; + __u64 flags = MDS_OPEN_HAS_OBJS | FMODE_WRITE; struct lov_user_md *lump; int lum_size = sizeof(struct lov_user_md) + sizeof(struct lov_user_ost_data); @@ -1476,7 +1688,7 @@ static int ll_lov_setstripe(struct inode *inode, struct file *file, struct lov_user_md_v1 *lumv1p = (struct lov_user_md_v1 *)arg; struct lov_user_md_v3 *lumv3p = (struct lov_user_md_v3 *)arg; int lum_size, rc; - int flags = FMODE_WRITE; + __u64 flags = FMODE_WRITE; ENTRY; /* first try with v1 which is smaller than v3 */ @@ -1520,7 +1732,8 @@ static int ll_lov_getstripe(struct inode *inode, unsigned long arg) RETURN(rc); } -int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) +static int +ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) { struct ll_inode_info *lli = ll_i2info(inode); struct ll_file_data *fd = LUSTRE_FPRIVATE(file); @@ -1626,31 +1839,30 @@ int ll_release_openhandle(struct dentry *dentry, struct lookup_intent *it) if (!och) GOTO(out, rc = -ENOMEM); - ll_och_fill(ll_i2sbi(inode)->ll_md_exp, - ll_i2info(inode), it, och); + ll_och_fill(ll_i2sbi(inode)->ll_md_exp, it, och); rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp, - inode, och); - out: - /* this one is in place of ll_file_open */ - if (it_disposition(it, DISP_ENQ_OPEN_REF)) { - ptlrpc_req_finished(it->d.lustre.it_data); - it_clear_disposition(it, DISP_ENQ_OPEN_REF); - } - RETURN(rc); + inode, och, NULL); +out: + /* this one is in place of ll_file_open */ + if (it_disposition(it, DISP_ENQ_OPEN_REF)) { + ptlrpc_req_finished(it->d.lustre.it_data); + it_clear_disposition(it, DISP_ENQ_OPEN_REF); + } + RETURN(rc); } /** * Get size for inode for which FIEMAP mapping is requested. * Make the FIEMAP get_info call and returns the result. */ -int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap, - int num_bytes) +static int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap, + size_t num_bytes) { struct obd_export *exp = ll_i2dtexp(inode); struct lov_stripe_md *lsm = NULL; struct ll_fiemap_info_key fm_key = { .name = KEY_FIEMAP, }; - int vallen = num_bytes; + __u32 vallen = num_bytes; int rc; ENTRY; @@ -1678,8 +1890,7 @@ int ll_do_fiemap(struct inode *inode, struct ll_user_fiemap *fiemap, !(fiemap->fm_flags & FIEMAP_FLAG_DEVICE_ORDER)) GOTO(out, rc = -EOPNOTSUPP); - fm_key.oa.o_id = lsm->lsm_object_id; - fm_key.oa.o_seq = lsm->lsm_object_seq; + fm_key.oa.o_oi = lsm->lsm_oi; fm_key.oa.o_valid = OBD_MD_FLID | OBD_MD_FLGROUP; obdo_from_inode(&fm_key.oa, inode, OBD_MD_FLSIZE); @@ -1735,6 +1946,7 @@ int ll_fid2path(struct inode *inode, void *arg) rc = obd_iocontrol(OBD_IOC_FID2PATH, exp, outsize, gfout, NULL); if (rc) GOTO(gf_free, rc); + if (copy_to_user(arg, gfout, outsize)) rc = -EFAULT; @@ -1801,11 +2013,12 @@ error: * This value is computed using stripe object version on OST. * Version is computed using server side locking. * - * @param extent_lock Take extent lock. Not needed if a process is already - * holding the OST object group locks. + * @param sync if do sync on the OST side; + * 0: no sync + * LL_DV_RD_FLUSH: flush dirty pages, LCK_PR on OSTs + * LL_DV_WR_FLUSH: drop all caching pages, LCK_PW on OSTs */ -int ll_data_version(struct inode *inode, __u64 *data_version, - int extent_lock) +int ll_data_version(struct inode *inode, __u64 *data_version, int flags) { struct lov_stripe_md *lsm = NULL; struct ll_sb_info *sbi = ll_i2sbi(inode); @@ -1815,20 +2028,18 @@ int ll_data_version(struct inode *inode, __u64 *data_version, /* If no stripe, we consider version is 0. */ lsm = ccc_inode_lsm_get(inode); - if (lsm == NULL) { + if (!lsm_has_objects(lsm)) { *data_version = 0; CDEBUG(D_INODE, "No object for inode\n"); - RETURN(0); + GOTO(out, rc = 0); } OBD_ALLOC_PTR(obdo); - if (obdo == NULL) { - ccc_inode_lsm_put(inode, lsm); - RETURN(-ENOMEM); - } + if (obdo == NULL) + GOTO(out, rc = -ENOMEM); - rc = ll_lsm_getattr(lsm, sbi->ll_dt_exp, NULL, obdo, 0, extent_lock); - if (!rc) { + rc = ll_lsm_getattr(lsm, sbi->ll_dt_exp, NULL, obdo, 0, flags); + if (rc == 0) { if (!(obdo->o_valid & OBD_MD_FLDATAVERSION)) rc = -EOPNOTSUPP; else @@ -1836,21 +2047,310 @@ int ll_data_version(struct inode *inode, __u64 *data_version, } OBD_FREE_PTR(obdo); + EXIT; +out: ccc_inode_lsm_put(inode, lsm); + RETURN(rc); +} + +/* + * Trigger a HSM release request for the provided inode. + */ +int ll_hsm_release(struct inode *inode) +{ + struct cl_env_nest nest; + struct lu_env *env; + struct obd_client_handle *och = NULL; + __u64 data_version = 0; + int rc; + ENTRY; + + CDEBUG(D_INODE, "%s: Releasing file "DFID".\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(&ll_i2info(inode)->lli_fid)); + + och = ll_lease_open(inode, NULL, FMODE_WRITE, MDS_OPEN_RELEASE); + if (IS_ERR(och)) + GOTO(out, rc = PTR_ERR(och)); + + /* Grab latest data_version and [am]time values */ + rc = ll_data_version(inode, &data_version, LL_DV_WR_FLUSH); + if (rc != 0) + GOTO(out, rc); + + env = cl_env_nested_get(&nest); + if (IS_ERR(env)) + GOTO(out, rc = PTR_ERR(env)); + + ll_merge_lvb(env, inode); + cl_env_nested_put(&nest, env); + + /* Release the file. + * NB: lease lock handle is released in mdc_hsm_release_pack() because + * we still need it to pack l_remote_handle to MDT. */ + rc = ll_close_inode_openhandle(ll_i2sbi(inode)->ll_md_exp, inode, och, + &data_version); + och = NULL; + + EXIT; +out: + if (och != NULL && !IS_ERR(och)) /* close the file */ + ll_lease_close(och, inode, NULL); + + return rc; +} + +struct ll_swap_stack { + struct iattr ia1, ia2; + __u64 dv1, dv2; + struct inode *inode1, *inode2; + bool check_dv1, check_dv2; +}; + +static int ll_swap_layouts(struct file *file1, struct file *file2, + struct lustre_swap_layouts *lsl) +{ + struct mdc_swap_layouts msl; + struct md_op_data *op_data; + __u32 gid; + __u64 dv; + struct ll_swap_stack *llss = NULL; + int rc; + + OBD_ALLOC_PTR(llss); + if (llss == NULL) + RETURN(-ENOMEM); + + llss->inode1 = file1->f_dentry->d_inode; + llss->inode2 = file2->f_dentry->d_inode; + + if (!S_ISREG(llss->inode2->i_mode)) + GOTO(free, rc = -EINVAL); + + if (inode_permission(llss->inode1, MAY_WRITE) || + inode_permission(llss->inode2, MAY_WRITE)) + GOTO(free, rc = -EPERM); + + if (llss->inode2->i_sb != llss->inode1->i_sb) + GOTO(free, rc = -EXDEV); + + /* we use 2 bool because it is easier to swap than 2 bits */ + if (lsl->sl_flags & SWAP_LAYOUTS_CHECK_DV1) + llss->check_dv1 = true; + + if (lsl->sl_flags & SWAP_LAYOUTS_CHECK_DV2) + llss->check_dv2 = true; + + /* we cannot use lsl->sl_dvX directly because we may swap them */ + llss->dv1 = lsl->sl_dv1; + llss->dv2 = lsl->sl_dv2; + + rc = lu_fid_cmp(ll_inode2fid(llss->inode1), ll_inode2fid(llss->inode2)); + if (rc == 0) /* same file, done! */ + GOTO(free, rc = 0); + + if (rc < 0) { /* sequentialize it */ + swap(llss->inode1, llss->inode2); + swap(file1, file2); + swap(llss->dv1, llss->dv2); + swap(llss->check_dv1, llss->check_dv2); + } + + gid = lsl->sl_gid; + if (gid != 0) { /* application asks to flush dirty cache */ + rc = ll_get_grouplock(llss->inode1, file1, gid); + if (rc < 0) + GOTO(free, rc); + + rc = ll_get_grouplock(llss->inode2, file2, gid); + if (rc < 0) { + ll_put_grouplock(llss->inode1, file1, gid); + GOTO(free, rc); + } + } + + /* to be able to restore mtime and atime after swap + * we need to first save them */ + if (lsl->sl_flags & + (SWAP_LAYOUTS_KEEP_MTIME | SWAP_LAYOUTS_KEEP_ATIME)) { + llss->ia1.ia_mtime = llss->inode1->i_mtime; + llss->ia1.ia_atime = llss->inode1->i_atime; + llss->ia1.ia_valid = ATTR_MTIME | ATTR_ATIME; + llss->ia2.ia_mtime = llss->inode2->i_mtime; + llss->ia2.ia_atime = llss->inode2->i_atime; + llss->ia2.ia_valid = ATTR_MTIME | ATTR_ATIME; + } + + /* ultimate check, before swaping the layouts we check if + * dataversion has changed (if requested) */ + if (llss->check_dv1) { + rc = ll_data_version(llss->inode1, &dv, 0); + if (rc) + GOTO(putgl, rc); + if (dv != llss->dv1) + GOTO(putgl, rc = -EAGAIN); + } + + if (llss->check_dv2) { + rc = ll_data_version(llss->inode2, &dv, 0); + if (rc) + GOTO(putgl, rc); + if (dv != llss->dv2) + GOTO(putgl, rc = -EAGAIN); + } + + /* struct md_op_data is used to send the swap args to the mdt + * only flags is missing, so we use struct mdc_swap_layouts + * through the md_op_data->op_data */ + /* flags from user space have to be converted before they are send to + * server, no flag is sent today, they are only used on the client */ + msl.msl_flags = 0; + rc = -ENOMEM; + op_data = ll_prep_md_op_data(NULL, llss->inode1, llss->inode2, NULL, 0, + 0, LUSTRE_OPC_ANY, &msl); + if (IS_ERR(op_data)) + GOTO(free, rc = PTR_ERR(op_data)); + + rc = obd_iocontrol(LL_IOC_LOV_SWAP_LAYOUTS, ll_i2mdexp(llss->inode1), + sizeof(*op_data), op_data, NULL); + ll_finish_md_op_data(op_data); + +putgl: + if (gid != 0) { + ll_put_grouplock(llss->inode2, file2, gid); + ll_put_grouplock(llss->inode1, file1, gid); + } + + /* rc can be set from obd_iocontrol() or from a GOTO(putgl, ...) */ + if (rc != 0) + GOTO(free, rc); + + /* clear useless flags */ + if (!(lsl->sl_flags & SWAP_LAYOUTS_KEEP_MTIME)) { + llss->ia1.ia_valid &= ~ATTR_MTIME; + llss->ia2.ia_valid &= ~ATTR_MTIME; + } + + if (!(lsl->sl_flags & SWAP_LAYOUTS_KEEP_ATIME)) { + llss->ia1.ia_valid &= ~ATTR_ATIME; + llss->ia2.ia_valid &= ~ATTR_ATIME; + } + + /* update time if requested */ + rc = 0; + if (llss->ia2.ia_valid != 0) { + mutex_lock(&llss->inode1->i_mutex); + rc = ll_setattr(file1->f_dentry, &llss->ia2); + mutex_unlock(&llss->inode1->i_mutex); + } + + if (llss->ia1.ia_valid != 0) { + int rc1; + + mutex_lock(&llss->inode2->i_mutex); + rc1 = ll_setattr(file2->f_dentry, &llss->ia1); + mutex_unlock(&llss->inode2->i_mutex); + if (rc == 0) + rc = rc1; + } + +free: + if (llss != NULL) + OBD_FREE_PTR(llss); RETURN(rc); } -long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +static int ll_hsm_state_set(struct inode *inode, struct hsm_state_set *hss) { - struct inode *inode = file->f_dentry->d_inode; - struct ll_file_data *fd = LUSTRE_FPRIVATE(file); - int flags; + struct md_op_data *op_data; + int rc; - ENTRY; + /* Non-root users are forbidden to set or clear flags which are + * NOT defined in HSM_USER_MASK. */ + if (((hss->hss_setmask | hss->hss_clearmask) & ~HSM_USER_MASK) && + !cfs_capable(CFS_CAP_SYS_ADMIN)) + RETURN(-EPERM); + + op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, + LUSTRE_OPC_ANY, hss); + if (IS_ERR(op_data)) + RETURN(PTR_ERR(op_data)); + + rc = obd_iocontrol(LL_IOC_HSM_STATE_SET, ll_i2mdexp(inode), + sizeof(*op_data), op_data, NULL); + + ll_finish_md_op_data(op_data); + + RETURN(rc); +} + +static int ll_hsm_import(struct inode *inode, struct file *file, + struct hsm_user_import *hui) +{ + struct hsm_state_set *hss = NULL; + struct iattr *attr = NULL; + int rc; + ENTRY; + + if (!S_ISREG(inode->i_mode)) + RETURN(-EINVAL); + + /* set HSM flags */ + OBD_ALLOC_PTR(hss); + if (hss == NULL) + GOTO(out, rc = -ENOMEM); + + hss->hss_valid = HSS_SETMASK | HSS_ARCHIVE_ID; + hss->hss_archive_id = hui->hui_archive_id; + hss->hss_setmask = HS_ARCHIVED | HS_EXISTS | HS_RELEASED; + rc = ll_hsm_state_set(inode, hss); + if (rc != 0) + GOTO(out, rc); + + OBD_ALLOC_PTR(attr); + if (attr == NULL) + GOTO(out, rc = -ENOMEM); + + attr->ia_mode = hui->hui_mode & (S_IRWXU | S_IRWXG | S_IRWXO); + attr->ia_mode |= S_IFREG; + attr->ia_uid = make_kuid(&init_user_ns, hui->hui_uid); + attr->ia_gid = make_kgid(&init_user_ns, hui->hui_gid); + attr->ia_size = hui->hui_size; + attr->ia_mtime.tv_sec = hui->hui_mtime; + attr->ia_mtime.tv_nsec = hui->hui_mtime_ns; + attr->ia_atime.tv_sec = hui->hui_atime; + attr->ia_atime.tv_nsec = hui->hui_atime_ns; + + attr->ia_valid = ATTR_SIZE | ATTR_MODE | ATTR_FORCE | + ATTR_UID | ATTR_GID | + ATTR_MTIME | ATTR_MTIME_SET | + ATTR_ATIME | ATTR_ATIME_SET; + + rc = ll_setattr_raw(file->f_dentry, attr, true); + if (rc == -ENODATA) + rc = 0; + +out: + if (hss != NULL) + OBD_FREE_PTR(hss); - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),cmd=%x\n", inode->i_ino, - inode->i_generation, inode, cmd); + if (attr != NULL) + OBD_FREE_PTR(attr); + + RETURN(rc); +} + +static long +ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + struct inode *inode = file->f_dentry->d_inode; + struct ll_file_data *fd = LUSTRE_FPRIVATE(file); + int flags, rc; + ENTRY; + + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), cmd=%x\n", + PFID(ll_inode2fid(inode)), inode, cmd); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_IOCTL, 1); /* asm-ppc{,64} declares TCGETS, et. al. as type 't' not 'T' */ @@ -1887,6 +2387,27 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) RETURN(ll_lov_setstripe(inode, file, arg)); case LL_IOC_LOV_SETEA: RETURN(ll_lov_setea(inode, file, arg)); + case LL_IOC_LOV_SWAP_LAYOUTS: { + struct file *file2; + struct lustre_swap_layouts lsl; + + if (copy_from_user(&lsl, (char *)arg, + sizeof(struct lustre_swap_layouts))) + RETURN(-EFAULT); + + if ((file->f_flags & O_ACCMODE) == 0) /* O_RDONLY */ + RETURN(-EPERM); + + file2 = fget(lsl.sl_fd); + if (file2 == NULL) + RETURN(-EBADF); + + rc = -EPERM; + if ((file2->f_flags & O_ACCMODE) != 0) /* O_WRONLY or O_RDWR */ + rc = ll_swap_layouts(file, file2, &lsl); + fput(file2); + RETURN(rc); + } case LL_IOC_LOV_GETSTRIPE: RETURN(ll_lov_getstripe(inode, arg)); case LL_IOC_RECREATE_OBJ: @@ -1927,13 +2448,13 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) RETURN(ll_fid2path(inode, (void *)arg)); case LL_IOC_DATA_VERSION: { struct ioc_data_version idv; - int rc; + int rc; if (copy_from_user(&idv, (char *)arg, sizeof(idv))) RETURN(-EFAULT); - rc = ll_data_version(inode, &idv.idv_version, - !(idv.idv_flags & LL_DV_NOFLUSH)); + idv.idv_flags &= LL_DV_RD_FLUSH | LL_DV_WR_FLUSH; + rc = ll_data_version(inode, &idv.idv_version, idv.idv_flags); if (rc == 0 && copy_to_user((char *) arg, &idv, sizeof(idv))) RETURN(-EFAULT); @@ -1967,9 +2488,9 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, LUSTRE_OPC_ANY, hus); - if (op_data == NULL) { + if (IS_ERR(op_data)) { OBD_FREE_PTR(hus); - RETURN(-ENOMEM); + RETURN(PTR_ERR(op_data)); } rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data), @@ -1983,37 +2504,19 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) RETURN(rc); } case LL_IOC_HSM_STATE_SET: { - struct md_op_data *op_data; struct hsm_state_set *hss; int rc; - OBD_ALLOC_PTR(hss); - if (hss == NULL) - RETURN(-ENOMEM); - if (copy_from_user(hss, (char *)arg, sizeof(*hss))) { - OBD_FREE_PTR(hss); - RETURN(-EFAULT); - } - - /* Non-root users are forbidden to set or clear flags which are - * NOT defined in HSM_USER_MASK. */ - if (((hss->hss_setmask | hss->hss_clearmask) & ~HSM_USER_MASK) - && !cfs_capable(CFS_CAP_SYS_ADMIN)) { - OBD_FREE_PTR(hss); - RETURN(-EPERM); - } - - op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, - LUSTRE_OPC_ANY, hss); - if (op_data == NULL) { - OBD_FREE_PTR(hss); + OBD_ALLOC_PTR(hss); + if (hss == NULL) RETURN(-ENOMEM); - } - rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data), - op_data, NULL); + if (copy_from_user(hss, (char *)arg, sizeof(*hss))) { + OBD_FREE_PTR(hss); + RETURN(-EFAULT); + } - ll_finish_md_op_data(op_data); + rc = ll_hsm_state_set(inode, hss); OBD_FREE_PTR(hss); RETURN(rc); @@ -2029,21 +2532,122 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, LUSTRE_OPC_ANY, hca); - if (op_data == NULL) { + if (IS_ERR(op_data)) { OBD_FREE_PTR(hca); - RETURN(-ENOMEM); + RETURN(PTR_ERR(op_data)); } rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data), op_data, NULL); - if (cfs_copy_to_user((char *)arg, hca, sizeof(*hca))) + if (copy_to_user((char *)arg, hca, sizeof(*hca))) rc = -EFAULT; ll_finish_md_op_data(op_data); OBD_FREE_PTR(hca); RETURN(rc); } + case LL_IOC_SET_LEASE: { + struct ll_inode_info *lli = ll_i2info(inode); + struct obd_client_handle *och = NULL; + bool lease_broken; + fmode_t mode = 0; + + switch (arg) { + case F_WRLCK: + if (!(file->f_mode & FMODE_WRITE)) + RETURN(-EPERM); + mode = FMODE_WRITE; + break; + case F_RDLCK: + if (!(file->f_mode & FMODE_READ)) + RETURN(-EPERM); + mode = FMODE_READ; + break; + case F_UNLCK: + mutex_lock(&lli->lli_och_mutex); + if (fd->fd_lease_och != NULL) { + och = fd->fd_lease_och; + fd->fd_lease_och = NULL; + } + mutex_unlock(&lli->lli_och_mutex); + + if (och != NULL) { + mode = och->och_flags &(FMODE_READ|FMODE_WRITE); + rc = ll_lease_close(och, inode, &lease_broken); + if (rc == 0 && lease_broken) + mode = 0; + } else { + rc = -ENOLCK; + } + + /* return the type of lease or error */ + RETURN(rc < 0 ? rc : (int)mode); + default: + RETURN(-EINVAL); + } + + CDEBUG(D_INODE, "Set lease with mode %d\n", mode); + + /* apply for lease */ + och = ll_lease_open(inode, file, mode, 0); + if (IS_ERR(och)) + RETURN(PTR_ERR(och)); + + rc = 0; + mutex_lock(&lli->lli_och_mutex); + if (fd->fd_lease_och == NULL) { + fd->fd_lease_och = och; + och = NULL; + } + mutex_unlock(&lli->lli_och_mutex); + if (och != NULL) { + /* impossible now that only excl is supported for now */ + ll_lease_close(och, inode, &lease_broken); + rc = -EBUSY; + } + RETURN(rc); + } + case LL_IOC_GET_LEASE: { + struct ll_inode_info *lli = ll_i2info(inode); + struct ldlm_lock *lock = NULL; + + rc = 0; + mutex_lock(&lli->lli_och_mutex); + if (fd->fd_lease_och != NULL) { + struct obd_client_handle *och = fd->fd_lease_och; + + lock = ldlm_handle2lock(&och->och_lease_handle); + if (lock != NULL) { + lock_res_and_lock(lock); + if (!ldlm_is_cancel(lock)) + rc = och->och_flags & + (FMODE_READ | FMODE_WRITE); + unlock_res_and_lock(lock); + LDLM_LOCK_PUT(lock); + } + } + mutex_unlock(&lli->lli_och_mutex); + RETURN(rc); + } + case LL_IOC_HSM_IMPORT: { + struct hsm_user_import *hui; + + OBD_ALLOC_PTR(hui); + if (hui == NULL) + RETURN(-ENOMEM); + + if (copy_from_user(hui, (void *)arg, sizeof(*hui))) { + OBD_FREE_PTR(hui); + RETURN(-EFAULT); + } + + rc = ll_hsm_import(inode, file, hui); + + OBD_FREE_PTR(hui); + RETURN(rc); + } + default: { int err; @@ -2124,7 +2728,7 @@ generic_file_llseek_size(struct file *file, loff_t offset, int origin, } #endif -loff_t ll_file_seek(struct file *file, loff_t offset, int origin) +static loff_t ll_file_seek(struct file *file, loff_t offset, int origin) { struct inode *inode = file->f_dentry->d_inode; loff_t retval, eof = 0; @@ -2132,8 +2736,8 @@ loff_t ll_file_seek(struct file *file, loff_t offset, int origin) ENTRY; retval = offset + ((origin == SEEK_END) ? i_size_read(inode) : (origin == SEEK_CUR) ? file->f_pos : 0); - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), to=%llu=%#llx(%d)\n", - inode->i_ino, inode->i_generation, inode, retval, retval, + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), to=%llu=%#llx(%d)\n", + PFID(ll_inode2fid(inode)), inode, retval, retval, origin); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_LLSEEK, 1); @@ -2144,12 +2748,12 @@ loff_t ll_file_seek(struct file *file, loff_t offset, int origin) eof = i_size_read(inode); } - retval = generic_file_llseek_size(file, offset, origin, + retval = ll_generic_file_llseek_size(file, offset, origin, ll_file_maxbytes(inode), eof); RETURN(retval); } -int ll_flush(struct file *file, fl_owner_t id) +static int ll_flush(struct file *file, fl_owner_t id) { struct inode *inode = file->f_dentry->d_inode; struct ll_inode_info *lli = ll_i2info(inode); @@ -2162,9 +2766,11 @@ int ll_flush(struct file *file, fl_owner_t id) * failed for pages in this mapping. */ rc = lli->lli_async_rc; lli->lli_async_rc = 0; - err = lov_read_and_clear_async_rc(lli->lli_clob); - if (rc == 0) - rc = err; + if (lli->lli_clob != NULL) { + err = lov_read_and_clear_async_rc(lli->lli_clob); + if (rc == 0) + rc = err; + } /* The application has been told write failure already. * Do not report failure again. */ @@ -2175,12 +2781,12 @@ int ll_flush(struct file *file, fl_owner_t id) /** * Called to make sure a portion of file has been written out. - * if @local_only is not true, it will send OST_SYNC RPCs to ost. + * if @mode is not CL_FSYNC_LOCAL, it will send OST_SYNC RPCs to OST. * * Return how many pages have been written. */ int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end, - enum cl_fsync_mode mode) + enum cl_fsync_mode mode, int ignore_layout) { struct cl_env_nest nest; struct lu_env *env; @@ -2202,7 +2808,7 @@ int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end, io = ccc_env_thread_io(env); io->ci_obj = cl_i2info(inode)->lli_clob; - io->ci_ignore_layout = 1; + io->ci_ignore_layout = ignore_layout; /* initialize parameters for sync */ fio = &io->u.ci_fsync; @@ -2227,60 +2833,73 @@ int cl_sync_file_range(struct inode *inode, loff_t start, loff_t end, RETURN(result); } +/* + * When dentry is provided (the 'else' case), *file->f_dentry may be + * null and dentry must be used directly rather than pulled from + * *file->f_dentry as is done otherwise. + */ + #ifdef HAVE_FILE_FSYNC_4ARGS -int ll_fsync(struct file *file, loff_t start, loff_t end, int data) +int ll_fsync(struct file *file, loff_t start, loff_t end, int datasync) +{ + struct dentry *dentry = file->f_dentry; #elif defined(HAVE_FILE_FSYNC_2ARGS) -int ll_fsync(struct file *file, int data) +int ll_fsync(struct file *file, int datasync) +{ + struct dentry *dentry = file->f_dentry; + loff_t start = 0; + loff_t end = LLONG_MAX; #else -int ll_fsync(struct file *file, struct dentry *dentry, int data) -#endif +int ll_fsync(struct file *file, struct dentry *dentry, int datasync) { - struct inode *inode = file->f_dentry->d_inode; - struct ll_inode_info *lli = ll_i2info(inode); - struct ptlrpc_request *req; - struct obd_capa *oc; - int rc, err; - ENTRY; + loff_t start = 0; + loff_t end = LLONG_MAX; +#endif + struct inode *inode = dentry->d_inode; + struct ll_inode_info *lli = ll_i2info(inode); + struct ptlrpc_request *req; + struct obd_capa *oc; + int rc, err; + ENTRY; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p)\n", inode->i_ino, - inode->i_generation, inode); - ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FSYNC, 1); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p)\n", + PFID(ll_inode2fid(inode)), inode); + ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FSYNC, 1); #ifdef HAVE_FILE_FSYNC_4ARGS rc = filemap_write_and_wait_range(inode->i_mapping, start, end); mutex_lock(&inode->i_mutex); #else - /* fsync's caller has already called _fdata{sync,write}, we want - * that IO to finish before calling the osc and mdc sync methods */ - rc = filemap_fdatawait(inode->i_mapping); + /* fsync's caller has already called _fdata{sync,write}, we want + * that IO to finish before calling the osc and mdc sync methods */ + rc = filemap_fdatawait(inode->i_mapping); #endif - /* catch async errors that were recorded back when async writeback - * failed for pages in this mapping. */ - if (!S_ISDIR(inode->i_mode)) { - err = lli->lli_async_rc; - lli->lli_async_rc = 0; - if (rc == 0) - rc = err; + /* catch async errors that were recorded back when async writeback + * failed for pages in this mapping. */ + if (!S_ISDIR(inode->i_mode)) { + err = lli->lli_async_rc; + lli->lli_async_rc = 0; + if (rc == 0) + rc = err; err = lov_read_and_clear_async_rc(lli->lli_clob); if (rc == 0) rc = err; - } + } - oc = ll_mdscapa_get(inode); - err = md_sync(ll_i2sbi(inode)->ll_md_exp, ll_inode2fid(inode), oc, - &req); - capa_put(oc); - if (!rc) - rc = err; - if (!err) - ptlrpc_req_finished(req); + oc = ll_mdscapa_get(inode); + err = md_fsync(ll_i2sbi(inode)->ll_md_exp, ll_inode2fid(inode), oc, + &req); + capa_put(oc); + if (!rc) + rc = err; + if (!err) + ptlrpc_req_finished(req); - if (data) { + if (S_ISREG(inode->i_mode)) { struct ll_file_data *fd = LUSTRE_FPRIVATE(file); - err = cl_sync_file_range(inode, 0, OBD_OBJECT_EOF, - CL_FSYNC_ALL); + err = cl_sync_file_range(inode, start, end, CL_FSYNC_ALL, 0); if (rc == 0 && err < 0) rc = err; if (rc < 0) @@ -2295,23 +2914,27 @@ int ll_fsync(struct file *file, struct dentry *dentry, int data) RETURN(rc); } -int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) +static int +ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) { - struct inode *inode = file->f_dentry->d_inode; - struct ll_sb_info *sbi = ll_i2sbi(inode); - struct ldlm_enqueue_info einfo = { .ei_type = LDLM_FLOCK, - .ei_cb_cp =ldlm_flock_completion_ast, - .ei_cbdata = file_lock }; - struct md_op_data *op_data; - struct lustre_handle lockh = {0}; - ldlm_policy_data_t flock = {{0}}; - int flags = 0; - int rc; + struct inode *inode = file->f_dentry->d_inode; + struct ll_sb_info *sbi = ll_i2sbi(inode); + struct ldlm_enqueue_info einfo = { + .ei_type = LDLM_FLOCK, + .ei_cb_cp = ldlm_flock_completion_ast, + .ei_cbdata = file_lock, + }; + struct md_op_data *op_data; + struct lustre_handle lockh = {0}; + ldlm_policy_data_t flock = {{0}}; + int fl_type = file_lock->fl_type; + __u64 flags = 0; + int rc; int rc2 = 0; - ENTRY; + ENTRY; - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu file_lock=%p\n", - inode->i_ino, file_lock); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID" file_lock=%p\n", + PFID(ll_inode2fid(inode)), file_lock); ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_FLOCK, 1); @@ -2340,7 +2963,7 @@ int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) if (file_lock->fl_lmops && file_lock->fl_lmops->lm_compare_owner) flock.l_flock.owner = (unsigned long)file_lock->fl_pid; - switch (file_lock->fl_type) { + switch (fl_type) { case F_RDLCK: einfo.ei_mode = LCK_PR; break; @@ -2359,8 +2982,7 @@ int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) einfo.ei_mode = LCK_PW; break; default: - CDEBUG(D_INFO, "Unknown fcntl lock type: %d\n", - file_lock->fl_type); + CDEBUG(D_INFO, "Unknown fcntl lock type: %d\n", fl_type); RETURN (-ENOTSUPP); } @@ -2382,26 +3004,32 @@ int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) case F_GETLK64: #endif flags = LDLM_FL_TEST_LOCK; - /* Save the old mode so that if the mode in the lock changes we - * can decrement the appropriate reader or writer refcount. */ - file_lock->fl_type = einfo.ei_mode; break; default: CERROR("unknown fcntl lock command: %d\n", cmd); RETURN (-EINVAL); } + /* Save the old mode so that if the mode in the lock changes we + * can decrement the appropriate reader or writer refcount. */ + file_lock->fl_type = einfo.ei_mode; + op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0, LUSTRE_OPC_ANY, NULL); if (IS_ERR(op_data)) RETURN(PTR_ERR(op_data)); - CDEBUG(D_DLMTRACE, "inode=%lu, pid=%u, flags=%#x, mode=%u, " - "start="LPU64", end="LPU64"\n", inode->i_ino, flock.l_flock.pid, - flags, einfo.ei_mode, flock.l_flock.start, flock.l_flock.end); + CDEBUG(D_DLMTRACE, "inode="DFID", pid=%u, flags="LPX64", mode=%u, " + "start="LPU64", end="LPU64"\n", PFID(ll_inode2fid(inode)), + flock.l_flock.pid, flags, einfo.ei_mode, + flock.l_flock.start, flock.l_flock.end); + + rc = md_enqueue(sbi->ll_md_exp, &einfo, &flock, NULL, op_data, &lockh, + flags); - rc = md_enqueue(sbi->ll_md_exp, &einfo, NULL, - op_data, &lockh, &flock, 0, NULL /* req */, flags); + /* Restore the file lock type if not TEST lock. */ + if (!(flags & LDLM_FL_TEST_LOCK)) + file_lock->fl_type = fl_type; if ((file_lock->fl_flags & FL_FLOCK) && (rc == 0 || file_lock->fl_type == F_UNLCK)) @@ -2413,8 +3041,8 @@ int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) if (rc2 && file_lock->fl_type != F_UNLCK) { einfo.ei_mode = LCK_NL; - md_enqueue(sbi->ll_md_exp, &einfo, NULL, - op_data, &lockh, &flock, 0, NULL /* req */, flags); + md_enqueue(sbi->ll_md_exp, &einfo, &flock, NULL, op_data, + &lockh, flags); rc = rc2; } @@ -2423,7 +3051,114 @@ int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) RETURN(rc); } -int ll_file_noflock(struct file *file, int cmd, struct file_lock *file_lock) +int ll_get_fid_by_name(struct inode *parent, const char *name, + int namelen, struct lu_fid *fid) +{ + struct md_op_data *op_data = NULL; + struct mdt_body *body; + struct ptlrpc_request *req; + int rc; + ENTRY; + + op_data = ll_prep_md_op_data(NULL, parent, NULL, name, namelen, 0, + LUSTRE_OPC_ANY, NULL); + if (IS_ERR(op_data)) + RETURN(PTR_ERR(op_data)); + + op_data->op_valid = OBD_MD_FLID; + rc = md_getattr_name(ll_i2sbi(parent)->ll_md_exp, op_data, &req); + ll_finish_md_op_data(op_data); + if (rc < 0) + RETURN(rc); + + body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); + if (body == NULL) + GOTO(out_req, rc = -EFAULT); + if (fid != NULL) + *fid = body->mbo_fid1; +out_req: + ptlrpc_req_finished(req); + RETURN(rc); +} + +int ll_migrate(struct inode *parent, struct file *file, int mdtidx, + const char *name, int namelen) +{ + struct dentry *dchild = NULL; + struct inode *child_inode = NULL; + struct md_op_data *op_data; + struct ptlrpc_request *request = NULL; + struct qstr qstr; + int rc; + ENTRY; + + CDEBUG(D_VFSTRACE, "migrate %s under "DFID" to MDT%04x\n", + name, PFID(ll_inode2fid(parent)), mdtidx); + + op_data = ll_prep_md_op_data(NULL, parent, NULL, name, namelen, + 0, LUSTRE_OPC_ANY, NULL); + if (IS_ERR(op_data)) + RETURN(PTR_ERR(op_data)); + + /* Get child FID first */ + qstr.hash = full_name_hash(name, namelen); + qstr.name = name; + qstr.len = namelen; + dchild = d_lookup(file->f_dentry, &qstr); + if (dchild != NULL && dchild->d_inode != NULL) { + op_data->op_fid3 = *ll_inode2fid(dchild->d_inode); + if (dchild->d_inode != NULL) { + child_inode = igrab(dchild->d_inode); + ll_invalidate_aliases(child_inode); + } + dput(dchild); + } else { + rc = ll_get_fid_by_name(parent, name, namelen, + &op_data->op_fid3); + if (rc != 0) + GOTO(out_free, rc); + } + + if (!fid_is_sane(&op_data->op_fid3)) { + CERROR("%s: migrate %s , but fid "DFID" is insane\n", + ll_get_fsname(parent->i_sb, NULL, 0), name, + PFID(&op_data->op_fid3)); + GOTO(out_free, rc = -EINVAL); + } + + rc = ll_get_mdt_idx_by_fid(ll_i2sbi(parent), &op_data->op_fid3); + if (rc < 0) + GOTO(out_free, rc); + + if (rc == mdtidx) { + CDEBUG(D_INFO, "%s:"DFID" is already on MDT%d.\n", name, + PFID(&op_data->op_fid3), mdtidx); + GOTO(out_free, rc = 0); + } + + op_data->op_mds = mdtidx; + op_data->op_cli_flags = CLI_MIGRATE; + rc = md_rename(ll_i2sbi(parent)->ll_md_exp, op_data, name, + namelen, name, namelen, &request); + if (rc == 0) + ll_update_times(request, parent); + + ptlrpc_req_finished(request); + if (rc != 0) + GOTO(out_free, rc); + +out_free: + if (child_inode != NULL) { + clear_nlink(child_inode); + iput(child_inode); + } + + ll_finish_md_op_data(op_data); + RETURN(rc); +} + +static int +ll_file_noflock(struct file *file, int cmd, struct file_lock *file_lock) { ENTRY; @@ -2458,11 +3193,11 @@ int ll_have_md_lock(struct inode *inode, __u64 *bits, ldlm_mode_t l_req_mode) CDEBUG(D_INFO, "trying to match res "DFID" mode %s\n", PFID(fid), ldlm_lockname[mode]); - flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING | LDLM_FL_TEST_LOCK; - for (i = 0; i < MDS_INODELOCK_MAXSHIFT && *bits != 0; i++) { - policy.l_inodebits.bits = *bits & (1 << i); - if (policy.l_inodebits.bits == 0) - continue; + flags = LDLM_FL_BLOCK_GRANTED | LDLM_FL_CBPENDING | LDLM_FL_TEST_LOCK; + for (i = 0; i <= MDS_INODELOCK_MAXSHIFT && *bits != 0; i++) { + policy.l_inodebits.bits = *bits & (1 << i); + if (policy.l_inodebits.bits == 0) + continue; if (md_lock_match(ll_i2mdexp(inode), flags, fid, LDLM_IBITS, &policy, mode, &lockh)) { @@ -2482,7 +3217,8 @@ int ll_have_md_lock(struct inode *inode, __u64 *bits, ldlm_mode_t l_req_mode) } ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits, - struct lustre_handle *lockh, __u64 flags) + struct lustre_handle *lockh, __u64 flags, + ldlm_mode_t mode) { ldlm_policy_data_t policy = { .l_inodebits = {bits}}; struct lu_fid *fid; @@ -2492,10 +3228,10 @@ ldlm_mode_t ll_take_md_lock(struct inode *inode, __u64 bits, fid = &ll_i2info(inode)->lli_fid; CDEBUG(D_INFO, "trying to match res "DFID"\n", PFID(fid)); - rc = md_lock_match(ll_i2mdexp(inode), LDLM_FL_BLOCK_GRANTED|flags, - fid, LDLM_IBITS, &policy, - LCK_CR|LCK_CW|LCK_PR|LCK_PW, lockh); - RETURN(rc); + rc = md_lock_match(ll_i2mdexp(inode), LDLM_FL_BLOCK_GRANTED|flags, + fid, LDLM_IBITS, &policy, mode, lockh); + + RETURN(rc); } static int ll_inode_revalidate_fini(struct inode *inode, int rc) @@ -2509,16 +3245,16 @@ static int ll_inode_revalidate_fini(struct inode *inode, int rc) if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode)) return 0; } else if (rc != 0) { - CERROR("%s: revalidate FID "DFID" error: rc = %d\n", - ll_get_fsname(inode->i_sb, NULL, 0), - PFID(ll_inode2fid(inode)), rc); + CDEBUG_LIMIT((rc == -EACCES || rc == -EIDRM) ? D_INFO : D_ERROR, + "%s: revalidate FID "DFID" error: rc = %d\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(ll_inode2fid(inode)), rc); } return rc; } -int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, - __u64 ibits) +static int __ll_inode_revalidate(struct dentry *dentry, __u64 ibits) { struct inode *inode = dentry->d_inode; struct ptlrpc_request *req = NULL; @@ -2528,15 +3264,15 @@ int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, LASSERT(inode != NULL); - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),name=%s\n", - inode->i_ino, inode->i_generation, inode, dentry->d_name.name); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p),name=%s\n", + PFID(ll_inode2fid(inode)), inode, dentry->d_name.name); exp = ll_i2mdexp(inode); /* XXX: Enable OBD_CONNECT_ATTRFID to reduce unnecessary getattr RPC. * But under CMD case, it caused some lock issues, should be fixed * with new CMD ibits lock. See bug 12718 */ - if (exp->exp_connect_flags & OBD_CONNECT_ATTRFID) { + if (exp_connect_flags(exp) & OBD_CONNECT_ATTRFID) { struct lookup_intent oit = { .it_op = IT_GETATTR }; struct md_op_data *op_data; @@ -2544,20 +3280,15 @@ int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, oit.it_op = IT_LOOKUP; /* Call getattr by fid, so do not provide name at all. */ - op_data = ll_prep_md_op_data(NULL, dentry->d_parent->d_inode, + op_data = ll_prep_md_op_data(NULL, dentry->d_inode, dentry->d_inode, NULL, 0, 0, LUSTRE_OPC_ANY, NULL); if (IS_ERR(op_data)) RETURN(PTR_ERR(op_data)); - oit.it_create_mode |= M_CHECK_STALE; - rc = md_intent_lock(exp, op_data, NULL, 0, - /* we are not interested in name - based lookup */ - &oit, 0, &req, - ll_md_blocking_ast, 0); + rc = md_intent_lock(exp, op_data, &oit, &req, + &ll_md_blocking_ast, 0); ll_finish_md_op_data(op_data); - oit.it_create_mode &= ~M_CHECK_STALE; if (rc < 0) { rc = ll_inode_revalidate_fini(inode, rc); GOTO (out, rc); @@ -2574,7 +3305,7 @@ int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, here to preserve get_cwd functionality on 2.6. Bug 10503 */ if (!dentry->d_inode->i_nlink) - d_lustre_invalidate(dentry); + d_lustre_invalidate(dentry, 0); ll_lookup_finish_locks(&oit, dentry); } else if (!ll_have_md_lock(dentry->d_inode, &ibits, LCK_MINMODE)) { @@ -2583,12 +3314,12 @@ int __ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, struct md_op_data *op_data; int ealen = 0; - if (S_ISREG(inode->i_mode)) { - rc = ll_get_max_mdsize(sbi, &ealen); - if (rc) - RETURN(rc); - valid |= OBD_MD_FLEASIZE | OBD_MD_FLMODEASIZE; - } + if (S_ISREG(inode->i_mode)) { + rc = ll_get_default_mdsize(sbi, &ealen); + if (rc) + RETURN(rc); + valid |= OBD_MD_FLEASIZE | OBD_MD_FLMODEASIZE; + } op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, ealen, LUSTRE_OPC_ANY, @@ -2614,73 +3345,107 @@ out: return rc; } -int ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, - __u64 ibits) +static int ll_merge_md_attr(struct inode *inode) { - struct inode *inode = dentry->d_inode; - int rc; - ENTRY; + struct cl_attr attr = { 0 }; + int rc; + + LASSERT(ll_i2info(inode)->lli_lsm_md != NULL); + rc = md_merge_attr(ll_i2mdexp(inode), ll_i2info(inode)->lli_lsm_md, + &attr); + if (rc != 0) + RETURN(rc); + + ll_i2info(inode)->lli_stripe_dir_size = attr.cat_size; + ll_i2info(inode)->lli_stripe_dir_nlink = attr.cat_nlink; + + ll_i2info(inode)->lli_lvb.lvb_atime = attr.cat_atime; + ll_i2info(inode)->lli_lvb.lvb_mtime = attr.cat_mtime; + ll_i2info(inode)->lli_lvb.lvb_ctime = attr.cat_ctime; + + RETURN(0); +} + +static int +ll_inode_revalidate(struct dentry *dentry, __u64 ibits) +{ + struct inode *inode = dentry->d_inode; + int rc; + ENTRY; - rc = __ll_inode_revalidate_it(dentry, it, ibits); + rc = __ll_inode_revalidate(dentry, ibits); if (rc != 0) RETURN(rc); /* if object isn't regular file, don't validate size */ if (!S_ISREG(inode->i_mode)) { + if (S_ISDIR(inode->i_mode) && + ll_i2info(inode)->lli_lsm_md != NULL) { + rc = ll_merge_md_attr(inode); + if (rc != 0) + RETURN(rc); + } + LTIME_S(inode->i_atime) = ll_i2info(inode)->lli_lvb.lvb_atime; LTIME_S(inode->i_mtime) = ll_i2info(inode)->lli_lvb.lvb_mtime; LTIME_S(inode->i_ctime) = ll_i2info(inode)->lli_lvb.lvb_ctime; } else { - rc = ll_glimpse_size(inode); + /* In case of restore, the MDT has the right size and has + * already send it back without granting the layout lock, + * inode is up-to-date so glimpse is useless. + * Also to glimpse we need the layout, in case of a running + * restore the MDT holds the layout lock so the glimpse will + * block up to the end of restore (getattr will block) + */ + if (!(ll_i2info(inode)->lli_flags & LLIF_FILE_RESTORING)) + rc = ll_glimpse_size(inode); } - RETURN(rc); + RETURN(rc); } -int ll_getattr_it(struct vfsmount *mnt, struct dentry *de, - struct lookup_intent *it, struct kstat *stat) +int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat) { struct inode *inode = de->d_inode; struct ll_sb_info *sbi = ll_i2sbi(inode); struct ll_inode_info *lli = ll_i2info(inode); int res = 0; - res = ll_inode_revalidate_it(de, it, MDS_INODELOCK_UPDATE | - MDS_INODELOCK_LOOKUP); + res = ll_inode_revalidate(de, MDS_INODELOCK_UPDATE | + MDS_INODELOCK_LOOKUP); ll_stats_ops_tally(sbi, LPROC_LL_GETATTR, 1); if (res) return res; - stat->dev = inode->i_sb->s_dev; - if (ll_need_32bit_api(sbi)) - stat->ino = cl_fid_build_ino(&lli->lli_fid, 1); - else - stat->ino = inode->i_ino; - stat->mode = inode->i_mode; - stat->nlink = inode->i_nlink; - stat->uid = inode->i_uid; - stat->gid = inode->i_gid; + stat->dev = inode->i_sb->s_dev; + if (ll_need_32bit_api(sbi)) + stat->ino = cl_fid_build_ino(&lli->lli_fid, 1); + else + stat->ino = inode->i_ino; + stat->mode = inode->i_mode; + stat->uid = inode->i_uid; + stat->gid = inode->i_gid; stat->rdev = inode->i_rdev; - stat->atime = inode->i_atime; - stat->mtime = inode->i_mtime; - stat->ctime = inode->i_ctime; + stat->atime = inode->i_atime; + stat->mtime = inode->i_mtime; + stat->ctime = inode->i_ctime; stat->blksize = 1 << inode->i_blkbits; + stat->blocks = inode->i_blocks; - stat->size = i_size_read(inode); - stat->blocks = inode->i_blocks; + if (S_ISDIR(inode->i_mode) && + ll_i2info(inode)->lli_lsm_md != NULL) { + stat->nlink = lli->lli_stripe_dir_nlink; + stat->size = lli->lli_stripe_dir_size; + } else { + stat->nlink = inode->i_nlink; + stat->size = i_size_read(inode); + } return 0; } -int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat) -{ - struct lookup_intent it = { .it_op = IT_GETATTR }; - - return ll_getattr_it(mnt, de, &it, stat); -} -#ifdef HAVE_LINUX_FIEMAP_H -int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, - __u64 start, __u64 len) +static int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, + __u64 start, __u64 len) { int rc; size_t num_bytes; @@ -2698,22 +3463,24 @@ int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, fiemap->fm_extent_count = fieinfo->fi_extents_max; fiemap->fm_start = start; fiemap->fm_length = len; - memcpy(&fiemap->fm_extents[0], fieinfo->fi_extents_start, - sizeof(struct ll_fiemap_extent)); + if (extent_count > 0) + memcpy(&fiemap->fm_extents[0], fieinfo->fi_extents_start, + sizeof(struct ll_fiemap_extent)); - rc = ll_do_fiemap(inode, fiemap, num_bytes); + rc = ll_do_fiemap(inode, fiemap, num_bytes); - fieinfo->fi_flags = fiemap->fm_flags; - fieinfo->fi_extents_mapped = fiemap->fm_mapped_extents; - memcpy(fieinfo->fi_extents_start, &fiemap->fm_extents[0], - fiemap->fm_mapped_extents * sizeof(struct ll_fiemap_extent)); + fieinfo->fi_flags = fiemap->fm_flags; + fieinfo->fi_extents_mapped = fiemap->fm_mapped_extents; + if (extent_count > 0) + memcpy(fieinfo->fi_extents_start, &fiemap->fm_extents[0], + fiemap->fm_mapped_extents * + sizeof(struct ll_fiemap_extent)); - OBD_FREE_LARGE(fiemap, num_bytes); - return rc; + OBD_FREE_LARGE(fiemap, num_bytes); + return rc; } -#endif -struct posix_acl * ll_get_acl(struct inode *inode, int type) +struct posix_acl *ll_get_acl(struct inode *inode, int type) { struct ll_inode_info *lli = ll_i2info(inode); struct posix_acl *acl = NULL; @@ -2769,8 +3536,14 @@ int ll_inode_permission(struct inode *inode, int mask, struct nameidata *nd) # endif #endif { - int rc = 0; - ENTRY; + int rc = 0; + struct ll_sb_info *sbi; + struct root_squash_info *squash; + struct cred *cred = NULL; + const struct cred *old_cred = NULL; + cfs_cap_t cap; + bool squash_id = false; + ENTRY; #ifdef MAY_NOT_BLOCK if (mask & MAY_NOT_BLOCK) @@ -2784,75 +3557,86 @@ int ll_inode_permission(struct inode *inode, int mask, struct nameidata *nd) * need to do it before permission check. */ if (inode == inode->i_sb->s_root->d_inode) { - struct lookup_intent it = { .it_op = IT_LOOKUP }; - - rc = __ll_inode_revalidate_it(inode->i_sb->s_root, &it, - MDS_INODELOCK_LOOKUP); + rc = __ll_inode_revalidate(inode->i_sb->s_root, + MDS_INODELOCK_LOOKUP); if (rc) RETURN(rc); } - CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), inode mode %x mask %o\n", - inode->i_ino, inode->i_generation, inode, inode->i_mode, mask); + CDEBUG(D_VFSTRACE, "VFS Op:inode="DFID"(%p), inode mode %x mask %o\n", + PFID(ll_inode2fid(inode)), inode, inode->i_mode, mask); + + /* squash fsuid/fsgid if needed */ + sbi = ll_i2sbi(inode); + squash = &sbi->ll_squash; + if (unlikely(squash->rsi_uid != 0 && + uid_eq(current_fsuid(), GLOBAL_ROOT_UID) && + !(sbi->ll_flags & LL_SBI_NOROOTSQUASH))) { + squash_id = true; + } + if (squash_id) { + CDEBUG(D_OTHER, "squash creds (%d:%d)=>(%d:%d)\n", + __kuid_val(current_fsuid()), __kgid_val(current_fsgid()), + squash->rsi_uid, squash->rsi_gid); + + /* update current process's credentials + * and FS capability */ + cred = prepare_creds(); + if (cred == NULL) + RETURN(-ENOMEM); + + cred->fsuid = make_kuid(&init_user_ns, squash->rsi_uid); + cred->fsgid = make_kgid(&init_user_ns, squash->rsi_gid); + for (cap = 0; cap < sizeof(cfs_cap_t) * 8; cap++) { + if ((1 << cap) & CFS_CAP_FS_MASK) + cap_lower(cred->cap_effective, cap); + } + old_cred = override_creds(cred); + } + + ll_stats_ops_tally(sbi, LPROC_LL_INODE_PERM, 1); - if (ll_i2sbi(inode)->ll_flags & LL_SBI_RMT_CLIENT) - return lustre_check_remote_perm(inode, mask); + if (sbi->ll_flags & LL_SBI_RMT_CLIENT) + rc = lustre_check_remote_perm(inode, mask); + else + rc = ll_generic_permission(inode, mask, flags, ll_check_acl); - ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_INODE_PERM, 1); - rc = ll_generic_permission(inode, mask, flags, ll_check_acl); + /* restore current process's credentials and FS capability */ + if (squash_id) { + revert_creds(old_cred); + put_cred(cred); + } RETURN(rc); } -#ifdef HAVE_FILE_READV -#define READ_METHOD readv -#define READ_FUNCTION ll_file_readv -#define WRITE_METHOD writev -#define WRITE_FUNCTION ll_file_writev -#else -#define READ_METHOD aio_read -#define READ_FUNCTION ll_file_aio_read -#define WRITE_METHOD aio_write -#define WRITE_FUNCTION ll_file_aio_write -#endif - /* -o localflock - only provides locally consistent flock locks */ struct file_operations ll_file_operations = { .read = ll_file_read, - .READ_METHOD = READ_FUNCTION, + .aio_read = ll_file_aio_read, .write = ll_file_write, - .WRITE_METHOD = WRITE_FUNCTION, + .aio_write = ll_file_aio_write, .unlocked_ioctl = ll_file_ioctl, .open = ll_file_open, .release = ll_file_release, .mmap = ll_file_mmap, .llseek = ll_file_seek, -#ifdef HAVE_KERNEL_SENDFILE - .sendfile = ll_file_sendfile, -#endif -#ifdef HAVE_KERNEL_SPLICE_READ .splice_read = ll_file_splice_read, -#endif .fsync = ll_fsync, .flush = ll_flush }; struct file_operations ll_file_operations_flock = { .read = ll_file_read, - .READ_METHOD = READ_FUNCTION, + .aio_read = ll_file_aio_read, .write = ll_file_write, - .WRITE_METHOD = WRITE_FUNCTION, + .aio_write = ll_file_aio_write, .unlocked_ioctl = ll_file_ioctl, .open = ll_file_open, .release = ll_file_release, .mmap = ll_file_mmap, .llseek = ll_file_seek, -#ifdef HAVE_KERNEL_SENDFILE - .sendfile = ll_file_sendfile, -#endif -#ifdef HAVE_KERNEL_SPLICE_READ .splice_read = ll_file_splice_read, -#endif .fsync = ll_fsync, .flush = ll_flush, .flock = ll_file_flock, @@ -2862,20 +3646,15 @@ struct file_operations ll_file_operations_flock = { /* These are for -o noflock - to return ENOSYS on flock calls */ struct file_operations ll_file_operations_noflock = { .read = ll_file_read, - .READ_METHOD = READ_FUNCTION, + .aio_read = ll_file_aio_read, .write = ll_file_write, - .WRITE_METHOD = WRITE_FUNCTION, + .aio_write = ll_file_aio_write, .unlocked_ioctl = ll_file_ioctl, .open = ll_file_open, .release = ll_file_release, .mmap = ll_file_mmap, .llseek = ll_file_seek, -#ifdef HAVE_KERNEL_SENDFILE - .sendfile = ll_file_sendfile, -#endif -#ifdef HAVE_KERNEL_SPLICE_READ .splice_read = ll_file_splice_read, -#endif .fsync = ll_fsync, .flush = ll_flush, .flock = ll_file_noflock, @@ -2890,9 +3669,7 @@ struct inode_operations ll_file_inode_operations = { .getxattr = ll_getxattr, .listxattr = ll_listxattr, .removexattr = ll_removexattr, -#ifdef HAVE_LINUX_FIEMAP_H .fiemap = ll_fiemap, -#endif #ifdef HAVE_IOP_GET_ACL .get_acl = ll_get_acl, #endif @@ -2901,15 +3678,15 @@ struct inode_operations ll_file_inode_operations = { /* dynamic ioctl number support routins */ static struct llioc_ctl_data { struct rw_semaphore ioc_sem; - cfs_list_t ioc_head; + struct list_head ioc_head; } llioc = { - __RWSEM_INITIALIZER(llioc.ioc_sem), - CFS_LIST_HEAD_INIT(llioc.ioc_head) + __RWSEM_INITIALIZER(llioc.ioc_sem), + LIST_HEAD_INIT(llioc.ioc_head) }; struct llioc_data { - cfs_list_t iocd_list; + struct list_head iocd_list; unsigned int iocd_size; llioc_callback_t iocd_cb; unsigned int iocd_count; @@ -2938,7 +3715,7 @@ void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd) memcpy(in_data->iocd_cmd, cmd, sizeof(unsigned int) * count); down_write(&llioc.ioc_sem); - cfs_list_add_tail(&in_data->iocd_list, &llioc.ioc_head); + list_add_tail(&in_data->iocd_list, &llioc.ioc_head); up_write(&llioc.ioc_sem); RETURN(in_data); @@ -2952,11 +3729,11 @@ void ll_iocontrol_unregister(void *magic) return; down_write(&llioc.ioc_sem); - cfs_list_for_each_entry(tmp, &llioc.ioc_head, iocd_list) { + list_for_each_entry(tmp, &llioc.ioc_head, iocd_list) { if (tmp == magic) { unsigned int size = tmp->iocd_size; - cfs_list_del(&tmp->iocd_list); + list_del(&tmp->iocd_list); up_write(&llioc.ioc_sem); OBD_FREE(tmp, size); @@ -2971,15 +3748,16 @@ void ll_iocontrol_unregister(void *magic) EXPORT_SYMBOL(ll_iocontrol_register); EXPORT_SYMBOL(ll_iocontrol_unregister); -enum llioc_iter ll_iocontrol_call(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg, int *rcp) +static enum llioc_iter +ll_iocontrol_call(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg, int *rcp) { enum llioc_iter ret = LLIOC_CONT; struct llioc_data *data; int rc = -EINVAL, i; down_read(&llioc.ioc_sem); - cfs_list_for_each_entry(data, &llioc.ioc_head, iocd_list) { + list_for_each_entry(data, &llioc.ioc_head, iocd_list) { for (i = 0; i < data->iocd_count; i++) { if (cmd != data->iocd_cmd[i]) continue; @@ -3022,16 +3800,97 @@ int ll_layout_conf(struct inode *inode, const struct cl_object_conf *conf) LASSERT(lock != NULL); LASSERT(ldlm_has_layout(lock)); if (result == 0) { + struct lustre_md *md = conf->u.coc_md; + __u32 gen = LL_LAYOUT_GEN_EMPTY; + /* it can only be allowed to match after layout is * applied to inode otherwise false layout would be * seen. Applying layout shoud happen before dropping * the intent lock. */ ldlm_lock_allow_match(lock); + + lli->lli_has_smd = lsm_has_objects(md->lsm); + if (md->lsm != NULL) + gen = md->lsm->lsm_layout_gen; + + CDEBUG(D_VFSTRACE, + DFID ": layout version change: %u -> %u\n", + PFID(&lli->lli_fid), ll_layout_version_get(lli), + gen); + ll_layout_version_set(lli, gen); } } RETURN(result); } +/* Fetch layout from MDT with getxattr request, if it's not ready yet */ +static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock) + +{ + struct ll_sb_info *sbi = ll_i2sbi(inode); + struct obd_capa *oc; + struct ptlrpc_request *req; + struct mdt_body *body; + void *lvbdata; + void *lmm; + int lmmsize; + int rc; + ENTRY; + + CDEBUG(D_INODE, DFID" LVB_READY=%d l_lvb_data=%p l_lvb_len=%d\n", + PFID(ll_inode2fid(inode)), ldlm_is_lvb_ready(lock), + lock->l_lvb_data, lock->l_lvb_len); + + if ((lock->l_lvb_data != NULL) && ldlm_is_lvb_ready(lock)) + RETURN(0); + + /* if layout lock was granted right away, the layout is returned + * within DLM_LVB of dlm reply; otherwise if the lock was ever + * blocked and then granted via completion ast, we have to fetch + * layout here. Please note that we can't use the LVB buffer in + * completion AST because it doesn't have a large enough buffer */ + oc = ll_mdscapa_get(inode); + rc = ll_get_default_mdsize(sbi, &lmmsize); + if (rc == 0) + rc = md_getxattr(sbi->ll_md_exp, ll_inode2fid(inode), oc, + OBD_MD_FLXATTR, XATTR_NAME_LOV, NULL, 0, + lmmsize, 0, &req); + capa_put(oc); + if (rc < 0) + RETURN(rc); + + body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); + if (body == NULL) + GOTO(out, rc = -EPROTO); + + lmmsize = body->mbo_eadatasize; + if (lmmsize == 0) /* empty layout */ + GOTO(out, rc = 0); + + lmm = req_capsule_server_sized_get(&req->rq_pill, &RMF_EADATA, lmmsize); + if (lmm == NULL) + GOTO(out, rc = -EFAULT); + + OBD_ALLOC_LARGE(lvbdata, lmmsize); + if (lvbdata == NULL) + GOTO(out, rc = -ENOMEM); + + memcpy(lvbdata, lmm, lmmsize); + lock_res_and_lock(lock); + if (lock->l_lvb_data != NULL) + OBD_FREE_LARGE(lock->l_lvb_data, lock->l_lvb_len); + + lock->l_lvb_data = lvbdata; + lock->l_lvb_len = lmmsize; + unlock_res_and_lock(lock); + + EXIT; + +out: + ptlrpc_req_finished(req); + return rc; +} + /** * Apply the layout to the inode. Layout lock is held and will be released * in this function. @@ -3046,6 +3905,7 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode, struct cl_object_conf conf; int rc = 0; bool lvb_ready; + bool wait_layout = false; ENTRY; LASSERT(lustre_handle_is_used(lockh)); @@ -3054,28 +3914,33 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode, LASSERT(lock != NULL); LASSERT(ldlm_has_layout(lock)); - LDLM_DEBUG(lock, "File %p/"DFID" being reconfigured: %d.\n", - inode, PFID(&lli->lli_fid), reconf); + LDLM_DEBUG(lock, "file "DFID"(%p) being reconfigured: %d\n", + PFID(&lli->lli_fid), inode, reconf); + + /* in case this is a caching lock and reinstate with new inode */ + md_set_lock_data(sbi->ll_md_exp, &lockh->cookie, inode, NULL); lock_res_and_lock(lock); - lvb_ready = !!(lock->l_flags & LDLM_FL_LVB_READY); + lvb_ready = ldlm_is_lvb_ready(lock); unlock_res_and_lock(lock); /* checking lvb_ready is racy but this is okay. The worst case is * that multi processes may configure the file on the same time. */ - if (lvb_ready || !reconf) { - LDLM_LOCK_PUT(lock); + if (lvb_ready || !reconf) { rc = -ENODATA; if (lvb_ready) { /* layout_gen must be valid if layout lock is not * cancelled and stripe has already set */ - *gen = lli->lli_layout_gen; + *gen = ll_layout_version_get(lli); rc = 0; } - ldlm_lock_decref(lockh, mode); - RETURN(rc); + GOTO(out, rc); } + rc = ll_layout_fetch(inode, lock); + if (rc < 0) + GOTO(out, rc); + /* for layout lock, lmm is returned in lock's lvb. * lvb_data is immutable if the lock is held so it's safe to access it * without res lock. See the description in ldlm_lock_decref_internal() @@ -3084,6 +3949,7 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode, rc = obd_unpackmd(sbi->ll_dt_exp, &md.lsm, lock->l_lvb_data, lock->l_lvb_len); if (rc >= 0) { + *gen = LL_LAYOUT_GEN_EMPTY; if (md.lsm != NULL) *gen = md.lsm->lsm_layout_gen; rc = 0; @@ -3093,11 +3959,8 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode, PFID(&lli->lli_fid), rc); } } - if (rc < 0) { - LDLM_LOCK_PUT(lock); - ldlm_lock_decref(lockh, mode); - RETURN(rc); - } + if (rc < 0) + GOTO(out, rc); /* set layout to file. Unlikely this will fail as old layout was * surely eliminated */ @@ -3107,18 +3970,23 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode, conf.coc_lock = lock; conf.u.coc_md = &md; rc = ll_layout_conf(inode, &conf); - LDLM_LOCK_PUT(lock); - - ldlm_lock_decref(lockh, mode); if (md.lsm != NULL) obd_free_memmd(sbi->ll_dt_exp, &md.lsm); + /* refresh layout failed, need to wait */ + wait_layout = rc == -EBUSY; + EXIT; + +out: + LDLM_LOCK_PUT(lock); + ldlm_lock_decref(lockh, mode); + /* wait for IO to complete if it's still being used. */ - if (rc == -EBUSY) { - CDEBUG(D_INODE, "%s: %p/"DFID" wait for layout reconf.\n", - ll_get_fsname(inode->i_sb, NULL, 0), - inode, PFID(&lli->lli_fid)); + if (wait_layout) { + CDEBUG(D_INODE, "%s: "DFID"(%p) wait for layout reconf\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(&lli->lli_fid), inode); memset(&conf, 0, sizeof conf); conf.coc_opc = OBJECT_CONF_WAIT; @@ -3127,10 +3995,10 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode, if (rc == 0) rc = -EAGAIN; - CDEBUG(D_INODE, "file: "DFID" waiting layout return: %d.\n", - PFID(&lli->lli_fid), rc); + CDEBUG(D_INODE, "%s file="DFID" waiting layout return: %d\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(&lli->lli_fid), rc); } - RETURN(rc); } @@ -3155,40 +4023,31 @@ int ll_layout_refresh(struct inode *inode, __u32 *gen) struct lookup_intent it; struct lustre_handle lockh; ldlm_mode_t mode; - struct ldlm_enqueue_info einfo = { .ei_type = LDLM_IBITS, - .ei_mode = LCK_CR, - .ei_cb_bl = ll_md_blocking_ast, - .ei_cb_cp = ldlm_completion_ast, - .ei_cbdata = inode }; + struct ldlm_enqueue_info einfo = { + .ei_type = LDLM_IBITS, + .ei_mode = LCK_CR, + .ei_cb_bl = &ll_md_blocking_ast, + .ei_cb_cp = &ldlm_completion_ast, + }; int rc; ENTRY; - *gen = LL_LAYOUT_GEN_ZERO; - if (!(sbi->ll_flags & LL_SBI_LAYOUT_LOCK)) + *gen = ll_layout_version_get(lli); + if (!(sbi->ll_flags & LL_SBI_LAYOUT_LOCK) || *gen != LL_LAYOUT_GEN_NONE) RETURN(0); /* sanity checks */ LASSERT(fid_is_sane(ll_inode2fid(inode))); LASSERT(S_ISREG(inode->i_mode)); - /* mostly layout lock is caching on the local side, so try to match - * it before grabbing layout lock mutex. */ - mode = ll_take_md_lock(inode, MDS_INODELOCK_LAYOUT, &lockh, 0); - if (mode != 0) { /* hit cached lock */ - rc = ll_layout_lock_set(&lockh, mode, inode, gen, false); - if (rc == 0) - RETURN(0); - - /* better hold lli_layout_mutex to try again otherwise - * it will have starvation problem. */ - } - /* take layout lock mutex to enqueue layout lock exclusively. */ mutex_lock(&lli->lli_layout_mutex); again: - /* try again. Maybe somebody else has done this. */ - mode = ll_take_md_lock(inode, MDS_INODELOCK_LAYOUT, &lockh, 0); + /* mostly layout lock is caching on the local side, so try to match + * it before grabbing layout lock mutex. */ + mode = ll_take_md_lock(inode, MDS_INODELOCK_LAYOUT, &lockh, 0, + LCK_CR | LCK_CW | LCK_PR | LCK_PW); if (mode != 0) { /* hit cached lock */ rc = ll_layout_lock_set(&lockh, mode, inode, gen, true); if (rc == -EAGAIN) @@ -3199,7 +4058,7 @@ again: } op_data = ll_prep_md_op_data(NULL, inode, inode, NULL, - 0, 0, LUSTRE_OPC_ANY, NULL); + 0, 0, LUSTRE_OPC_ANY, NULL); if (IS_ERR(op_data)) { mutex_unlock(&lli->lli_layout_mutex); RETURN(PTR_ERR(op_data)); @@ -3210,12 +4069,11 @@ again: it.it_op = IT_LAYOUT; lockh.cookie = 0ULL; - LDLM_DEBUG_NOLOCK("%s: requeue layout lock for file %p/"DFID".\n", - ll_get_fsname(inode->i_sb, NULL, 0), inode, - PFID(&lli->lli_fid)); + LDLM_DEBUG_NOLOCK("%s: requeue layout lock for file "DFID"(%p)\n", + ll_get_fsname(inode->i_sb, NULL, 0), + PFID(&lli->lli_fid), inode); - rc = md_enqueue(sbi->ll_md_exp, &einfo, &it, op_data, &lockh, - NULL, 0, NULL, 0); + rc = md_enqueue(sbi->ll_md_exp, &einfo, NULL, &it, op_data, &lockh, 0); if (it.d.lustre.it_data != NULL) ptlrpc_req_finished(it.d.lustre.it_data); it.d.lustre.it_data = NULL; @@ -3237,3 +4095,33 @@ again: RETURN(rc); } + +/** + * This function send a restore request to the MDT + */ +int ll_layout_restore(struct inode *inode, loff_t offset, __u64 length) +{ + struct hsm_user_request *hur; + int len, rc; + ENTRY; + + len = sizeof(struct hsm_user_request) + + sizeof(struct hsm_user_item); + OBD_ALLOC(hur, len); + if (hur == NULL) + RETURN(-ENOMEM); + + hur->hur_request.hr_action = HUA_RESTORE; + hur->hur_request.hr_archive_id = 0; + hur->hur_request.hr_flags = 0; + memcpy(&hur->hur_user_item[0].hui_fid, &ll_i2info(inode)->lli_fid, + sizeof(hur->hur_user_item[0].hui_fid)); + hur->hur_user_item[0].hui_extent.offset = offset; + hur->hur_user_item[0].hui_extent.length = length; + hur->hur_request.hr_itemcount = 1; + rc = obd_iocontrol(LL_IOC_HSM_REQUEST, cl_i2sbi(inode)->ll_md_exp, + len, hur, NULL); + OBD_FREE(hur, len); + RETURN(rc); +} +