X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Fllite%2Ffile.c;h=28cb292df270964a0426fcb1b8a73247624d7870;hb=26bcb8fcd034f2edc993fa27a9158479836523b8;hp=ef524f70f4d4691a610c03f999e10cd7c4f0b6db;hpb=e5a5abca5637d59187475bfc2e0ef45e2af41420;p=fs%2Flustre-release.git diff --git a/lustre/llite/file.c b/lustre/llite/file.c index ef524f7..28cb292 100644 --- a/lustre/llite/file.c +++ b/lustre/llite/file.c @@ -42,19 +42,30 @@ #define DEBUG_SUBSYSTEM S_LLITE #include -#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, __GFP_IO); + OBD_SLAB_ALLOC_PTR_GFP(fd, ll_file_data_slab, GFP_NOFS); if (fd == NULL) return NULL; @@ -79,8 +90,7 @@ void ll_pack_inode2opdata(struct inode *inode, struct md_op_data *op_data, op_data->op_attr.ia_ctime = inode->i_ctime; op_data->op_attr.ia_size = i_size_read(inode); op_data->op_attr_blocks = inode->i_blocks; - ((struct ll_iattr *)&op_data->op_attr)->ia_attr_flags = - ll_inode_to_ext_flags(inode->i_flags); + op_data->op_attr_flags = ll_inode_to_ext_flags(inode->i_flags); op_data->op_ioepoch = ll_i2info(inode)->lli_ioepoch; if (fh) op_data->op_handle = *fh; @@ -162,14 +172,17 @@ 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. */ @@ -181,17 +194,10 @@ static int ll_close_inode_openhandle(struct obd_export *md_exp, spin_unlock(&lli->lli_lock); } - if (rc == 0) { - rc = ll_objects_destroy(req, inode); - if (rc) - CERROR("inode %lu ll_objects destroy: rc = %d\n", - inode->i_ino, 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->valid & OBD_MD_FLRELEASED)) + if (!(body->mbo_valid & OBD_MD_FLRELEASED)) rc = -EBUSY; } @@ -213,48 +219,51 @@ 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, + 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); @@ -287,7 +296,7 @@ int ll_md_close(struct obd_export *md_exp, struct inode *inode, 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}}; @@ -314,10 +323,11 @@ int ll_md_close(struct obd_export *md_exp, struct inode *inode, rc = ll_md_real_close(file->f_dentry->d_inode, fd->fd_omode); } - } else { - CERROR("Releasing a file %p with negative dentry %p. Name %s", - file, file->f_dentry, file->f_dentry->d_name.name); - } + } else { + CERROR("released file has negative dentry: file = %p, " + "dentry = %p, name = %s\n", + file, file->f_dentry, file->f_dentry->d_name.name); + } out: LUSTRE_FPRIVATE(file) = NULL; @@ -340,8 +350,8 @@ 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 && @@ -362,12 +372,10 @@ int ll_file_release(struct inode *inode, struct file *file) fd = LUSTRE_FPRIVATE(file); LASSERT(fd != NULL); - /* The last ref on @file, maybe not the the owner pid of statahead. - * Different processes can open the same dir, "ll_opendir_key" means: - * it is me that should stop the statahead thread. */ - if (S_ISDIR(inode->i_mode) && lli->lli_opendir_key == fd && - lli->lli_opendir_pid != 0) - ll_stop_statahead(inode, lli->lli_opendir_key); + /* The last ref on @file, maybe not the the owner pid of statahead, + * because parent and child process can share the same file handle. */ + if (S_ISDIR(inode->i_mode) && lli->lli_opendir_key == fd) + ll_deauthorize_statahead(inode, fd); if (inode->i_sb->s_root == file->f_dentry) { LUSTRE_FPRIVATE(file) = NULL; @@ -376,7 +384,8 @@ 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; } @@ -388,77 +397,69 @@ 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; - 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, NULL, 0, - O_RDWR, opc, NULL); + /* 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; + } - if (IS_ERR(op_data)) - RETURN(PTR_ERR(op_data)); + 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; - 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); - } + 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); + } - if (it_disposition(itp, DISP_LOOKUP_NEG)) - GOTO(out, rc = -ENOENT); + 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); - } + 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(&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); + 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); } /** @@ -482,17 +483,17 @@ static int ll_och_fill(struct obd_export *md_exp, struct lookup_intent *it, struct mdt_body *body; body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); - och->och_fh = body->handle; - och->och_fid = body->fid1; + 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); @@ -512,13 +513,17 @@ int ll_local_open(struct file *file, struct lookup_intent *it, RETURN(rc); body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); - ll_ioepoch_open(lli, body->ioepoch); + ll_ioepoch_open(lli, body->mbo_ioepoch); } 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); } @@ -537,36 +542,28 @@ int ll_local_open(struct file *file, struct lookup_intent *it, */ int ll_file_open(struct inode *inode, struct file *file) { - struct ll_inode_info *lli = ll_i2info(inode); - struct lookup_intent *it, oit = { .it_op = IT_OPEN, - .it_flags = file->f_flags }; - struct obd_client_handle **och_p = NULL; - __u64 *och_usecount = NULL; - struct ll_file_data *fd; - int rc = 0, opendir_set = 0; - ENTRY; + struct ll_inode_info *lli = ll_i2info(inode); + struct lookup_intent *it, oit = { .it_op = IT_OPEN, + .it_flags = file->f_flags }; + struct obd_client_handle **och_p = NULL; + __u64 *och_usecount = NULL; + struct ll_file_data *fd; + int rc = 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 */ + 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_openerr, rc = -ENOMEM); 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 = current_pid(); - opendir_set = 1; - } - spin_unlock(&lli->lli_sa_lock); - } + if (S_ISDIR(inode->i_mode)) + ll_authorize_statahead(inode, fd); if (inode->i_sb->s_root == file->f_dentry) { LUSTRE_FPRIVATE(file) = fd; @@ -645,9 +642,20 @@ 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. A race/condition on MDS resulting in no open + * handle to be returned from LOOKUP|OPEN request, + * for example if the target entry was a symlink. + * + * 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); @@ -664,16 +672,18 @@ 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; @@ -685,15 +695,14 @@ 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) { @@ -705,10 +714,10 @@ out_och_free: mutex_unlock(&lli->lli_och_mutex); out_openerr: - if (opendir_set != 0) - ll_stop_statahead(inode, lli->lli_opendir_key); - if (fd != NULL) - ll_file_data_put(fd); + if (lli->lli_opendir_key == fd) + ll_deauthorize_statahead(inode, fd); + if (fd != NULL) + ll_file_data_put(fd); } else { ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_OPEN, 1); } @@ -747,13 +756,14 @@ static int ll_md_blocking_lease_ast(struct ldlm_lock *lock, /** * Acquire a lease and open the file. */ -struct obd_client_handle *ll_lease_open(struct inode *inode, struct file *file, - fmode_t fmode, __u64 open_flags) +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; + struct ptlrpc_request *req = NULL; struct lustre_handle old_handle = { 0 }; struct obd_client_handle *och = NULL; int rc; @@ -819,20 +829,17 @@ struct obd_client_handle *ll_lease_open(struct inode *inode, struct file *file, 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, NULL, 0, &it, 0, &req, - ll_md_blocking_lease_ast, + 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); + LDLM_FL_NO_LRU | LDLM_FL_EXCL); ll_finish_md_op_data(op_data); - if (req != NULL) { - ptlrpc_req_finished(req); - it_clear_disposition(&it, DISP_ENQ_COMPLETE); - } + ptlrpc_req_finished(req); if (rc < 0) GOTO(out_release_it, rc); @@ -854,7 +861,7 @@ struct obd_client_handle *ll_lease_open(struct inode *inode, struct file *file, 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/%Lu.\n", + 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); @@ -884,14 +891,13 @@ out: OBD_FREE_PTR(och); RETURN(ERR_PTR(rc)); } -EXPORT_SYMBOL(ll_lease_open); /** * Release lease and close the file. * It will check if the lease has ever broken. */ -int ll_lease_close(struct obd_client_handle *och, struct inode *inode, - bool *lease_broken) +static int ll_lease_close(struct obd_client_handle *och, struct inode *inode, + bool *lease_broken) { struct ldlm_lock *lock; bool cancelled = true; @@ -918,7 +924,6 @@ int ll_lease_close(struct obd_client_handle *och, struct inode *inode, NULL); RETURN(rc); } -EXPORT_SYMBOL(ll_lease_close); /* Fills the obdo with the attributes for the lsm */ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp, @@ -952,11 +957,11 @@ static int ll_lsm_getattr(struct lov_stripe_md *lsm, struct obd_export *exp, oinfo.oi_oa->o_flags |= OBD_FL_FLUSH; } - set = ptlrpc_prep_set(); - if (set == NULL) { - CERROR("can't allocate ptlrpc set\n"); - rc = -ENOMEM; - } else { + set = ptlrpc_prep_set(); + if (set == NULL) { + CERROR("cannot allocate ptlrpc set: rc = %d\n", -ENOMEM); + rc = -ENOMEM; + } else { rc = obd_getattr_async(exp, &oinfo, set); if (rc == 0) rc = ptlrpc_set_wait(set); @@ -998,7 +1003,7 @@ int ll_inode_getattr(struct inode *inode, struct obdo *obdo, 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)); + 1UL << inode->i_blkbits); } ccc_inode_lsm_put(inode, lsm); RETURN(rc); @@ -1020,7 +1025,12 @@ int ll_merge_lvb(const struct lu_env *env, struct inode *inode) LTIME_S(inode->i_atime) = lli->lli_lvb.lvb_atime; LTIME_S(inode->i_mtime) = lli->lli_lvb.lvb_mtime; LTIME_S(inode->i_ctime) = lli->lli_lvb.lvb_ctime; - inode_init_lvb(inode, &lvb); + + lvb.lvb_size = i_size_read(inode); + lvb.lvb_blocks = inode->i_blocks; + lvb.lvb_mtime = LTIME_S(inode->i_mtime); + lvb.lvb_atime = LTIME_S(inode->i_atime); + lvb.lvb_ctime = LTIME_S(inode->i_ctime); cl_object_attr_lock(obj); rc = cl_object_attr_get(env, obj, attr); @@ -1093,7 +1103,7 @@ static bool file_is_noatime(const struct file *file) return false; } -void ll_io_init(struct cl_io *io, const struct file *file, int write) +static void ll_io_init(struct cl_io *io, const struct file *file, int write) { struct inode *inode = file->f_dentry->d_inode; @@ -1123,21 +1133,29 @@ 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; + struct range_lock range; + ENTRY; + + CDEBUG(D_VFSTRACE, "file: %s, type: %d ppos: "LPU64", count: %zu\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); if (cl_io_rw_init(env, io, iot, *ppos, count) == 0) { - struct vvp_io *vio = vvp_env_io(env); - struct ccc_io *cio = ccc_env_io(env); - int write_mutex_locked = 0; + struct vvp_io *vio = vvp_env_io(env); + struct ccc_io *cio = ccc_env_io(env); + bool range_locked = false; - cio->cui_fd = LUSTRE_FPRIVATE(file); - vio->cui_io_subtype = args->via_io_subtype; + if (file->f_flags & O_APPEND) + range_lock_init(&range, 0, LUSTRE_EOF); + else + range_lock_init(&range, *ppos, *ppos + count - 1); + cio->cui_fd = LUSTRE_FPRIVATE(file); + vio->cui_io_subtype = args->via_io_subtype; switch (vio->cui_io_subtype) { case IO_NORMAL: @@ -1147,17 +1165,16 @@ restart: cio->cui_iocb = args->u.normal.via_iocb; 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; + CDEBUG(D_VFSTRACE, "Range lock "RL_FMT"\n", + RL_PARA(&range)); + result = range_lock(&lli->lli_write_tree, + &range); + if (result < 0) + GOTO(out, result); + + range_locked = true; + } + down_read(&lli->lli_trunc_sem); break; case IO_SPLICE: vio->u.splice.cui_pipe = args->u.splice.via_pipe; @@ -1167,11 +1184,18 @@ restart: CERROR("Unknow IO type - %u\n", vio->cui_io_subtype); LBUG(); } + + ll_cl_add(file, env, io); 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) + ll_cl_remove(file, env); + + if (args->via_io_subtype == IO_NORMAL) up_read(&lli->lli_trunc_sem); + if (range_locked) { + CDEBUG(D_VFSTRACE, "Range unlock "RL_FMT"\n", + RL_PARA(&range)); + range_unlock(&lli->lli_write_tree, &range); + } } else { /* cl_io_rw_init() handled IO */ result = io->ci_result; @@ -1187,10 +1211,10 @@ out: /* 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", + CDEBUG(D_VFSTRACE, "Restart %s on %s from %lld, count:%zu\n", iot == CIT_READ ? "read" : "write", file->f_dentry->d_name.name, *ppos, count); - LASSERTF(io->ci_nob == 0, "%zd", io->ci_nob); + LASSERTF(io->ci_nob == 0, "%zd\n", io->ci_nob); goto restart; } @@ -1207,6 +1231,7 @@ out: fd->fd_write_failed = true; } } + CDEBUG(D_VFSTRACE, "iot: %d, result: %zd\n", iot, result); return result; } @@ -1272,7 +1297,7 @@ static ssize_t ll_file_aio_read(struct kiocb *iocb, const struct iovec *iov, RETURN(result); } -static ssize_t ll_file_read(struct file *file, char *buf, size_t count, +static ssize_t ll_file_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { struct lu_env *env; @@ -1292,7 +1317,11 @@ 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; @@ -1334,8 +1363,8 @@ static ssize_t ll_file_aio_write(struct kiocb *iocb, const struct iovec *iov, RETURN(result); } -static ssize_t ll_file_write(struct file *file, const char *buf, size_t count, - loff_t *ppos) +static ssize_t ll_file_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) { struct lu_env *env; struct iovec *local_iov; @@ -1354,7 +1383,11 @@ 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; @@ -1389,88 +1422,6 @@ static ssize_t ll_file_splice_read(struct file *in_file, loff_t *ppos, RETURN(result); } -static int ll_lov_recreate(struct inode *inode, struct ost_id *oi, - obd_count ost_idx) -{ - struct obd_export *exp = ll_i2dtexp(inode); - struct obd_trans_info oti = { 0 }; - struct obdo *oa = NULL; - int lsm_size; - int rc = 0; - struct lov_stripe_md *lsm = NULL, *lsm2; - ENTRY; - - OBDO_ALLOC(oa); - if (oa == NULL) - RETURN(-ENOMEM); - - lsm = ccc_inode_lsm_get(inode); - if (!lsm_has_objects(lsm)) - GOTO(out, rc = -ENOENT); - - lsm_size = sizeof(*lsm) + (sizeof(struct lov_oinfo) * - (lsm->lsm_stripe_count)); - - OBD_ALLOC_LARGE(lsm2, lsm_size); - if (lsm2 == NULL) - GOTO(out, rc = -ENOMEM); - - 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; - obdo_from_inode(oa, inode, OBD_MD_FLTYPE | OBD_MD_FLATIME | - OBD_MD_FLMTIME | OBD_MD_FLCTIME); - obdo_set_parent_fid(oa, &ll_i2info(inode)->lli_fid); - memcpy(lsm2, lsm, lsm_size); - ll_inode_size_lock(inode); - rc = obd_create(NULL, exp, oa, &lsm2, &oti); - ll_inode_size_unlock(inode); - - OBD_FREE_LARGE(lsm2, lsm_size); - GOTO(out, rc); -out: - ccc_inode_lsm_put(inode, lsm); - OBDO_FREE(oa); - return rc; -} - -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)) - RETURN(-EPERM); - - if (copy_from_user(&ucreat, (struct ll_recreate_obj *)arg, - sizeof(ucreat))) - RETURN(-EFAULT); - - 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; - struct ost_id oi; - obd_count ost_idx; - ENTRY; - - if (!cfs_capable(CFS_CAP_SYS_ADMIN)) - RETURN(-EPERM); - - if (copy_from_user(&fid, (struct lu_fid *)arg, sizeof(fid))) - RETURN(-EFAULT); - - fid_to_ostid(&fid, &oi); - ost_idx = (fid_seq(&fid) >> 16) & 0xffff; - RETURN(ll_lov_recreate(inode, &oi, ost_idx)); -} - int ll_lov_setstripe_ea_info(struct inode *inode, struct file *file, __u64 flags, struct lov_user_md *lum, int lum_size) @@ -1483,25 +1434,28 @@ 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); @@ -1519,9 +1473,9 @@ 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, @@ -1541,9 +1495,9 @@ 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); } @@ -1572,13 +1526,14 @@ int ll_lov_getstripe_ea_info(struct inode *inode, const char *filename, * 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, - 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, stripe_count); @@ -1609,7 +1564,7 @@ static int ll_lov_setea(struct inode *inode, struct file *file, if (lump == NULL) RETURN(-ENOMEM); - if (copy_from_user(lump, (struct lov_user_md *)arg, lum_size)) { + if (copy_from_user(lump, (struct lov_user_md __user *)arg, lum_size)) { OBD_FREE_LARGE(lump, lum_size); RETURN(-EFAULT); } @@ -1623,38 +1578,32 @@ static int ll_lov_setea(struct inode *inode, struct file *file, static int ll_lov_setstripe(struct inode *inode, struct file *file, unsigned long arg) { - struct lov_user_md_v3 lumv3; - struct lov_user_md_v1 *lumv1 = (struct lov_user_md_v1 *)&lumv3; - 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; - __u64 flags = FMODE_WRITE; + struct lov_user_md __user *lum = (struct lov_user_md __user *)arg; + struct lov_user_md *klum; + int lum_size, rc; + __u64 flags = FMODE_WRITE; ENTRY; - /* first try with v1 which is smaller than v3 */ - lum_size = sizeof(struct lov_user_md_v1); - if (copy_from_user(lumv1, lumv1p, lum_size)) - RETURN(-EFAULT); - - if (lumv1->lmm_magic == LOV_USER_MAGIC_V3) { - lum_size = sizeof(struct lov_user_md_v3); - if (copy_from_user(&lumv3, lumv3p, lum_size)) - RETURN(-EFAULT); - } + rc = ll_copy_user_md(lum, &klum); + if (rc < 0) + RETURN(rc); - rc = ll_lov_setstripe_ea_info(inode, file, flags, lumv1, lum_size); + lum_size = rc; + rc = ll_lov_setstripe_ea_info(inode, file, flags, klum, lum_size); if (rc == 0) { struct lov_stripe_md *lsm; __u32 gen; - put_user(0, &lumv1p->lmm_stripe_count); + put_user(0, &lum->lmm_stripe_count); ll_layout_refresh(inode, &gen); lsm = ccc_inode_lsm_get(inode); rc = obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode), - 0, lsm, (void *)arg); + 0, lsm, lum); ccc_inode_lsm_put(inode, lsm); } + + OBD_FREE(klum, lum_size); RETURN(rc); } @@ -1667,12 +1616,13 @@ static int ll_lov_getstripe(struct inode *inode, unsigned long arg) lsm = ccc_inode_lsm_get(inode); if (lsm != NULL) rc = obd_iocontrol(LL_IOC_LOV_GETSTRIPE, ll_i2dtexp(inode), 0, - lsm, (void *)arg); + lsm, (void __user *)arg); ccc_inode_lsm_put(inode, lsm); 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); @@ -1680,6 +1630,11 @@ int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) int rc; ENTRY; + if (arg == 0) { + CWARN("group id for group lock must not be 0\n"); + RETURN(-EINVAL); + } + if (ll_file_nolock(file)) RETURN(-EOPNOTSUPP); @@ -1714,7 +1669,8 @@ int ll_get_grouplock(struct inode *inode, struct file *file, unsigned long arg) RETURN(0); } -int ll_put_grouplock(struct inode *inode, struct file *file, unsigned long arg) +static int ll_put_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); @@ -1795,13 +1751,13 @@ out: * 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; @@ -1852,38 +1808,39 @@ out: RETURN(rc); } -int ll_fid2path(struct inode *inode, void *arg) +int ll_fid2path(struct inode *inode, void __user *arg) { struct obd_export *exp = ll_i2mdexp(inode); - struct getinfo_fid2path *gfout, *gfin; - int outsize, rc; + const struct getinfo_fid2path __user *gfin = arg; + __u32 pathlen; + struct getinfo_fid2path *gfout; + size_t outsize; + int rc; + ENTRY; if (!cfs_capable(CFS_CAP_DAC_READ_SEARCH) && !(ll_i2sbi(inode)->ll_flags & LL_SBI_USER_FID2PATH)) RETURN(-EPERM); - /* Need to get the buflen */ - OBD_ALLOC_PTR(gfin); - if (gfin == NULL) - RETURN(-ENOMEM); - if (copy_from_user(gfin, arg, sizeof(*gfin))) { - OBD_FREE_PTR(gfin); + /* Only need to get the buflen */ + if (get_user(pathlen, &gfin->gf_pathlen)) RETURN(-EFAULT); - } - outsize = sizeof(*gfout) + gfin->gf_pathlen; + if (pathlen > PATH_MAX) + RETURN(-EINVAL); + + outsize = sizeof(*gfout) + pathlen; OBD_ALLOC(gfout, outsize); - if (gfout == NULL) { - OBD_FREE_PTR(gfin); + if (gfout == NULL) RETURN(-ENOMEM); - } - memcpy(gfout, gfin, sizeof(*gfout)); - OBD_FREE_PTR(gfin); + + if (copy_from_user(gfout, arg, sizeof(*gfout))) + GOTO(gf_free, rc = -EFAULT); /* Call mdc_iocontrol */ rc = obd_iocontrol(OBD_IOC_FID2PATH, exp, outsize, gfout, NULL); - if (rc) + if (rc != 0) GOTO(gf_free, rc); if (copy_to_user(arg, gfout, outsize)) @@ -1906,6 +1863,10 @@ static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg) if (get_user(extent_count, &((struct ll_user_fiemap __user *)arg)->fm_extent_count)) RETURN(-EFAULT); + + if (extent_count >= + (SIZE_MAX - sizeof(*fiemap_s)) / sizeof(struct ll_fiemap_extent)) + RETURN(-EINVAL); num_bytes = sizeof(*fiemap_s) + (extent_count * sizeof(struct ll_fiemap_extent)); @@ -1938,7 +1899,7 @@ static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg) ret_bytes += (fiemap_s->fm_mapped_extents * sizeof(struct ll_fiemap_extent)); - if (copy_to_user((void *)arg, fiemap_s, ret_bytes)) + if (copy_to_user((void __user *)arg, fiemap_s, ret_bytes)) rc = -EFAULT; error: @@ -2253,8 +2214,8 @@ static int ll_hsm_import(struct inode *inode, struct file *file, attr->ia_mode = hui->hui_mode & (S_IRWXU | S_IRWXG | S_IRWXO); attr->ia_mode |= S_IFREG; - attr->ia_uid = hui->hui_uid; - attr->ia_gid = hui->hui_gid; + 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; @@ -2266,10 +2227,14 @@ static int ll_hsm_import(struct inode *inode, struct file *file, ATTR_MTIME | ATTR_MTIME_SET | ATTR_ATIME | ATTR_ATIME_SET; + mutex_lock(&inode->i_mutex); + rc = ll_setattr_raw(file->f_dentry, attr, true); if (rc == -ENODATA) rc = 0; + mutex_unlock(&inode->i_mutex); + out: if (hss != NULL) OBD_FREE_PTR(hss); @@ -2280,15 +2245,22 @@ out: RETURN(rc); } -long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +static inline long ll_lease_type_from_fmode(fmode_t fmode) +{ + return ((fmode & FMODE_READ) ? LL_LEASE_RDLCK : 0) | + ((fmode & FMODE_WRITE) ? LL_LEASE_WRLCK : 0); +} + +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=%lu/%u(%p),cmd=%x\n", inode->i_ino, - inode->i_generation, inode, cmd); + 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' */ @@ -2298,14 +2270,14 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) switch(cmd) { case LL_IOC_GETFLAGS: /* Get the current value of the file flags */ - return put_user(fd->fd_flags, (int *)arg); + return put_user(fd->fd_flags, (int __user *)arg); case LL_IOC_SETFLAGS: case LL_IOC_CLRFLAGS: /* Set or clear specific file flags */ /* XXX This probably needs checks to ensure the flags are * not abused, and to handle any flag side effects. */ - if (get_user(flags, (int *) arg)) + if (get_user(flags, (int __user *) arg)) RETURN(-EFAULT); if (cmd == LL_IOC_SETFLAGS) { @@ -2329,7 +2301,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) struct file *file2; struct lustre_swap_layouts lsl; - if (copy_from_user(&lsl, (char *)arg, + if (copy_from_user(&lsl, (char __user *)arg, sizeof(struct lustre_swap_layouts))) RETURN(-EFAULT); @@ -2348,10 +2320,6 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) } case LL_IOC_LOV_GETSTRIPE: RETURN(ll_lov_getstripe(inode, arg)); - case LL_IOC_RECREATE_OBJ: - RETURN(ll_lov_recreate_obj(inode, arg)); - case LL_IOC_RECREATE_FID: - RETURN(ll_lov_recreate_fid(inode, arg)); case FSFILT_IOC_FIEMAP: RETURN(ll_ioctl_fiemap(inode, arg)); case FSFILT_IOC_GETFLAGS: @@ -2359,13 +2327,13 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) RETURN(ll_iocontrol(inode, file, cmd, arg)); case FSFILT_IOC_GETVERSION_OLD: case FSFILT_IOC_GETVERSION: - RETURN(put_user(inode->i_generation, (int *)arg)); + RETURN(put_user(inode->i_generation, (int __user *)arg)); case LL_IOC_GROUP_LOCK: RETURN(ll_get_grouplock(inode, file, arg)); case LL_IOC_GROUP_UNLOCK: RETURN(ll_put_grouplock(inode, file, arg)); case IOC_OBD_STATFS: - RETURN(ll_obd_statfs(inode, (void *)arg)); + RETURN(ll_obd_statfs(inode, (void __user *)arg)); /* We need to special case any other ioctls we want to handle, * to send them to the MDS/OST as appropriate and to properly @@ -2376,25 +2344,29 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case LL_IOC_FLUSHCTX: RETURN(ll_flush_ctx(inode)); case LL_IOC_PATH2FID: { - if (copy_to_user((void *)arg, ll_inode2fid(inode), + if (copy_to_user((void __user *)arg, ll_inode2fid(inode), sizeof(struct lu_fid))) RETURN(-EFAULT); RETURN(0); } + case LL_IOC_GETPARENT: + RETURN(ll_getparent(file, (void __user *)arg)); + case OBD_IOC_FID2PATH: - RETURN(ll_fid2path(inode, (void *)arg)); + RETURN(ll_fid2path(inode, (void __user *)arg)); case LL_IOC_DATA_VERSION: { struct ioc_data_version idv; int rc; - if (copy_from_user(&idv, (char *)arg, sizeof(idv))) + if (copy_from_user(&idv, (char __user *)arg, sizeof(idv))) RETURN(-EFAULT); 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))) + if (rc == 0 && + copy_to_user((char __user *)arg, &idv, sizeof(idv))) RETURN(-EFAULT); RETURN(rc); @@ -2407,7 +2379,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (mdtidx < 0) RETURN(mdtidx); - if (put_user((int)mdtidx, (int*)arg)) + if (put_user((int)mdtidx, (int __user *)arg)) RETURN(-EFAULT); RETURN(0); @@ -2434,7 +2406,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data), op_data, NULL); - if (copy_to_user((void *)arg, hus, sizeof(*hus))) + if (copy_to_user((void __user *)arg, hus, sizeof(*hus))) rc = -EFAULT; ll_finish_md_op_data(op_data); @@ -2449,7 +2421,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (hss == NULL) RETURN(-ENOMEM); - if (copy_from_user(hss, (char *)arg, sizeof(*hss))) { + if (copy_from_user(hss, (char __user *)arg, sizeof(*hss))) { OBD_FREE_PTR(hss); RETURN(-EFAULT); } @@ -2478,7 +2450,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data), op_data, NULL); - if (copy_to_user((char *)arg, hca, sizeof(*hca))) + if (copy_to_user((char __user *)arg, hca, sizeof(*hca))) rc = -EFAULT; ll_finish_md_op_data(op_data); @@ -2489,20 +2461,20 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) struct ll_inode_info *lli = ll_i2info(inode); struct obd_client_handle *och = NULL; bool lease_broken; - fmode_t mode = 0; + fmode_t fmode; switch (arg) { - case F_WRLCK: + case LL_LEASE_WRLCK: if (!(file->f_mode & FMODE_WRITE)) RETURN(-EPERM); - mode = FMODE_WRITE; + fmode = FMODE_WRITE; break; - case F_RDLCK: + case LL_LEASE_RDLCK: if (!(file->f_mode & FMODE_READ)) RETURN(-EPERM); - mode = FMODE_READ; + fmode = FMODE_READ; break; - case F_UNLCK: + case LL_LEASE_UNLCK: mutex_lock(&lli->lli_och_mutex); if (fd->fd_lease_och != NULL) { och = fd->fd_lease_och; @@ -2510,25 +2482,26 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) } 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; - } + if (och == NULL) + RETURN(-ENOLCK); + + fmode = och->och_flags; + rc = ll_lease_close(och, inode, &lease_broken); + if (rc < 0) + RETURN(rc); - /* return the type of lease or error */ - RETURN(rc < 0 ? rc : (int)mode); + if (lease_broken) + fmode = 0; + + RETURN(ll_lease_type_from_fmode(fmode)); default: RETURN(-EINVAL); } - CDEBUG(D_INODE, "Set lease with mode %d\n", mode); + CDEBUG(D_INODE, "Set lease with mode %u\n", fmode); /* apply for lease */ - och = ll_lease_open(inode, file, mode, 0); + och = ll_lease_open(inode, file, fmode, 0); if (IS_ERR(och)) RETURN(PTR_ERR(och)); @@ -2549,8 +2522,8 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case LL_IOC_GET_LEASE: { struct ll_inode_info *lli = ll_i2info(inode); struct ldlm_lock *lock = NULL; + fmode_t fmode = 0; - rc = 0; mutex_lock(&lli->lli_och_mutex); if (fd->fd_lease_och != NULL) { struct obd_client_handle *och = fd->fd_lease_och; @@ -2559,14 +2532,15 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (lock != NULL) { lock_res_and_lock(lock); if (!ldlm_is_cancel(lock)) - rc = och->och_flags & - (FMODE_READ | FMODE_WRITE); + fmode = och->och_flags; + unlock_res_and_lock(lock); LDLM_LOCK_PUT(lock); } } mutex_unlock(&lli->lli_och_mutex); - RETURN(rc); + + RETURN(ll_lease_type_from_fmode(fmode)); } case LL_IOC_HSM_IMPORT: { struct hsm_user_import *hui; @@ -2575,7 +2549,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (hui == NULL) RETURN(-ENOMEM); - if (copy_from_user(hui, (void *)arg, sizeof(*hui))) { + if (copy_from_user(hui, (void __user *)arg, sizeof(*hui))) { OBD_FREE_PTR(hui); RETURN(-EFAULT); } @@ -2585,6 +2559,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) OBD_FREE_PTR(hui); RETURN(rc); } + default: { int err; @@ -2593,7 +2568,7 @@ long ll_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) RETURN(err); RETURN(obd_iocontrol(cmd, ll_i2dtexp(inode), 0, NULL, - (void *)arg)); + (void __user *)arg)); } } } @@ -2665,7 +2640,7 @@ 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; @@ -2673,8 +2648,8 @@ 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); @@ -2690,7 +2665,7 @@ loff_t ll_file_seek(struct file *file, loff_t offset, int origin) 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); @@ -2703,9 +2678,11 @@ 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. */ @@ -2716,7 +2693,7 @@ 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. */ @@ -2782,56 +2759,59 @@ int ll_fsync(struct file *file, loff_t start, loff_t end, int datasync) 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 datasync) { + 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; + 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); + 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); + capa_put(oc); + if (!rc) + rc = err; + if (!err) + ptlrpc_req_finished(req); - if (datasync && S_ISREG(inode->i_mode)) { + 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, 0); + err = cl_sync_file_range(inode, start, end, CL_FSYNC_ALL, 0); if (rc == 0 && err < 0) rc = err; if (rc < 0) @@ -2846,7 +2826,8 @@ int ll_fsync(struct file *file, struct dentry *dentry, int datasync) 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); @@ -2858,13 +2839,14 @@ int ll_file_flock(struct file *file, int cmd, struct file_lock *file_lock) struct md_op_data *op_data; struct lustre_handle lockh = {0}; ldlm_policy_data_t flock = {{0}}; - int flags = 0; + int fl_type = file_lock->fl_type; + __u64 flags = 0; int rc; int rc2 = 0; 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); @@ -2893,7 +2875,7 @@ 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; @@ -2912,8 +2894,7 @@ 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); } @@ -2935,26 +2916,32 @@ 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, NULL, - op_data, &lockh, &flock, 0, NULL /* req */, flags); + rc = md_enqueue(sbi->ll_md_exp, &einfo, &flock, NULL, op_data, &lockh, + 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)) @@ -2966,8 +2953,8 @@ 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; } @@ -2976,7 +2963,114 @@ 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; @@ -3063,16 +3157,16 @@ 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; @@ -3082,8 +3176,8 @@ 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); @@ -3098,20 +3192,15 @@ 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); @@ -3137,12 +3226,12 @@ 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, @@ -3168,19 +3257,47 @@ 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 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; @@ -3198,50 +3315,49 @@ int ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it, 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); -} -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; @@ -3259,21 +3375,24 @@ 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; } -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; @@ -3329,8 +3448,14 @@ 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) @@ -3344,22 +3469,55 @@ 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); } @@ -3432,15 +3590,15 @@ 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; @@ -3469,7 +3627,7 @@ 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); @@ -3483,11 +3641,11 @@ 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); @@ -3502,15 +3660,16 @@ 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; @@ -3553,11 +3712,24 @@ 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); @@ -3578,10 +3750,10 @@ static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock) ENTRY; CDEBUG(D_INODE, DFID" LVB_READY=%d l_lvb_data=%p l_lvb_len=%d\n", - PFID(ll_inode2fid(inode)), !!(lock->l_flags & LDLM_FL_LVB_READY), + PFID(ll_inode2fid(inode)), ldlm_is_lvb_ready(lock), lock->l_lvb_data, lock->l_lvb_len); - if ((lock->l_lvb_data != NULL) && (lock->l_flags & LDLM_FL_LVB_READY)) + if ((lock->l_lvb_data != NULL) && ldlm_is_lvb_ready(lock)) RETURN(0); /* if layout lock was granted right away, the layout is returned @@ -3590,7 +3762,7 @@ static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock) * 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_max_mdsize(sbi, &lmmsize); + 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, @@ -3600,10 +3772,10 @@ static int ll_layout_fetch(struct inode *inode, struct ldlm_lock *lock) RETURN(rc); body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY); - if (body == NULL || body->eadatasize > lmmsize) + if (body == NULL) GOTO(out, rc = -EPROTO); - lmmsize = body->eadatasize; + lmmsize = body->mbo_eadatasize; if (lmmsize == 0) /* empty layout */ GOTO(out, rc = 0); @@ -3654,14 +3826,14 @@ 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", + 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. */ @@ -3671,7 +3843,7 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode, 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; } GOTO(out, rc); @@ -3724,9 +3896,9 @@ out: /* wait for IO to complete if it's still being used. */ if (wait_layout) { - CDEBUG(D_INODE, "%s: %p/"DFID" wait for layout reconf.\n", - ll_get_fsname(inode->i_sb, NULL, 0), - inode, PFID(&lli->lli_fid)); + 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; @@ -3735,8 +3907,9 @@ out: 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); } @@ -3765,38 +3938,26 @@ int ll_layout_refresh(struct inode *inode, __u32 *gen) 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_cb_bl = &ll_md_blocking_ast, + .ei_cb_cp = &ldlm_completion_ast, }; int rc; ENTRY; - *gen = lli->lli_layout_gen; - 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, - LCK_CR | LCK_CW | LCK_PR | LCK_PW); - 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. */ + /* 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 */ @@ -3809,7 +3970,7 @@ 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)); @@ -3820,12 +3981,11 @@ 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)", + 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; @@ -3876,4 +4036,3 @@ int ll_layout_restore(struct inode *inode, loff_t offset, __u64 length) OBD_FREE(hur, len); RETURN(rc); } -