* 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/
{
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_IO);
+ if (fd == NULL)
+ return NULL;
+
fd->fd_write_failed = false;
+
return fd;
}
if (fh)
op_data->op_handle = *fh;
op_data->op_capa1 = ll_mdscapa_get(inode);
+
+ if (LLIF_DATA_MODIFIED & ll_i2info(inode)->lli_flags)
+ op_data->op_bias |= MDS_DATA_MODIFIED;
}
/**
{
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;
}
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;
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) {
CERROR("inode %lu mdc close failed: rc = %d\n",
inode->i_ino, rc);
}
- ll_finish_md_op_data(op_data);
+
+ /* DATA_MODIFIED flag was successfully sent on close, cancel data
+ * modification flag. */
+ if (rc == 0 && (op_data->op_bias & MDS_DATA_MODIFIED)) {
+ struct ll_inode_info *lli = ll_i2info(inode);
+
+ spin_lock(&lli->lli_lock);
+ lli->lli_flags &= ~LLIF_DATA_MODIFIED;
+ spin_unlock(&lli->lli_lock);
+ }
if (rc == 0) {
rc = ll_objects_destroy(req, inode);
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))
+ rc = -EBUSY;
+ }
+
+ ll_finish_md_op_data(op_data);
EXIT;
out:
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);
+ inode, och, NULL);
}
RETURN(rc);
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? */
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
inode->i_generation, 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)
GOTO(out, rc);
}
- rc = ll_prep_inode(&file->f_dentry->d_inode, req, NULL);
+ 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);
}
}
-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);
+ struct ptlrpc_request *req = it->d.lustre.it_data;
+ struct mdt_body *body;
- body = req_capsule_server_get(&req->rq_pill, &RMF_MDT_BODY);
- LASSERT(body != NULL); /* reply already checked out */
-
- 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->handle;
+ och->och_fid = body->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, req);
}
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->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);
+
+ RETURN(0);
}
/* Open a file, and (for the very first open) create objects on the OSTs at
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;
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.
+ */
+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 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, NULL, 0, &it, 0, &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);
+ if (req != NULL) {
+ ptlrpc_req_finished(req);
+ it_clear_disposition(&it, DISP_ENQ_COMPLETE);
+ }
+ 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/%Lu.\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));
+}
+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)
+{
+ 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);
+}
+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,
- 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 } } };
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 |
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) {
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);
}
/**
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));
}
RETURN(rc);
}
-int ll_merge_lvb(struct inode *inode)
+int ll_merge_lvb(const struct lu_env *env, struct inode *inode)
{
struct ll_inode_info *lli = ll_i2info(inode);
- struct ll_sb_info *sbi = ll_i2sbi(inode);
- struct lov_stripe_md *lsm;
+ struct cl_object *obj = lli->lli_clob;
+ struct cl_attr *attr = ccc_env_thread_attr(env);
struct ost_lvb lvb;
int rc = 0;
ENTRY;
- lsm = ccc_inode_lsm_get(inode);
ll_inode_size_lock(inode);
+ /* merge timestamps the most recently obtained from mds with
+ timestamps obtained from osts */
+ 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);
- /* merge timestamps the most resently obtained from mds with
- timestamps obtained from osts */
- lvb.lvb_atime = lli->lli_lvb.lvb_atime;
- lvb.lvb_mtime = lli->lli_lvb.lvb_mtime;
- lvb.lvb_ctime = lli->lli_lvb.lvb_ctime;
- if (lsm != NULL) {
- rc = obd_merge_lvb(sbi->ll_dt_exp, lsm, &lvb, 0);
- cl_isize_write_nolock(inode, lvb.lvb_size);
+ cl_object_attr_lock(obj);
+ rc = cl_object_attr_get(env, obj, attr);
+ cl_object_attr_unlock(obj);
+
+ if (rc == 0) {
+ if (lvb.lvb_atime < attr->cat_atime)
+ lvb.lvb_atime = attr->cat_atime;
+ if (lvb.lvb_ctime < attr->cat_ctime)
+ lvb.lvb_ctime = attr->cat_ctime;
+ if (lvb.lvb_mtime < attr->cat_mtime)
+ lvb.lvb_mtime = attr->cat_mtime;
CDEBUG(D_VFSTRACE, DFID" updating i_size "LPU64"\n",
- PFID(&lli->lli_fid), lvb.lvb_size);
- inode->i_blocks = lvb.lvb_blocks;
+ PFID(&lli->lli_fid), attr->cat_size);
+ cl_isize_write_nolock(inode, attr->cat_size);
+
+ inode->i_blocks = attr->cat_blocks;
+
+ LTIME_S(inode->i_mtime) = lvb.lvb_mtime;
+ LTIME_S(inode->i_atime) = lvb.lvb_atime;
+ LTIME_S(inode->i_ctime) = lvb.lvb_ctime;
}
- LTIME_S(inode->i_mtime) = lvb.lvb_mtime;
- LTIME_S(inode->i_atime) = lvb.lvb_atime;
- LTIME_S(inode->i_ctime) = lvb.lvb_ctime;
ll_inode_size_unlock(inode);
- ccc_inode_lsm_put(inode, lsm);
RETURN(rc);
}
return rc;
}
+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;
+}
+
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;
} else if (file->f_flags & O_APPEND) {
io->ci_lockreq = CILR_MANDATORY;
}
+
+ io->ci_noatime = file_is_noatime(file);
}
static ssize_t
ssize_t result;
ENTRY;
+restart:
io = ccc_env_thread_io(env);
ll_io_init(io, file, iot == CIT_WRITE);
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->
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)
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;
}
}
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)
{
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)
{
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
*/
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);
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) *
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;
static int ll_lov_recreate_obj(struct inode *inode, unsigned long arg)
{
- struct ll_recreate_obj ucreat;
- ENTRY;
+ struct ll_recreate_obj ucreat;
+ struct ost_id oi;
+ ENTRY;
- if (!cfs_capable(CFS_CAP_SYS_ADMIN))
- RETURN(-EPERM);
+ if (!cfs_capable(CFS_CAP_SYS_ADMIN))
+ RETURN(-EPERM);
- if (cfs_copy_from_user(&ucreat, (struct ll_recreate_obj *)arg,
- sizeof(struct ll_recreate_obj)))
- RETURN(-EFAULT);
+ if (copy_from_user(&ucreat, (struct ll_recreate_obj *)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;
- obd_count ost_idx;
+ struct lu_fid fid;
+ struct ost_id oi;
+ obd_count ost_idx;
ENTRY;
- if (!cfs_capable(CFS_CAP_SYS_ADMIN))
- RETURN(-EPERM);
+ if (!cfs_capable(CFS_CAP_SYS_ADMIN))
+ RETURN(-EPERM);
- if (cfs_copy_from_user(&fid, (struct lu_fid *)arg,
- sizeof(struct lu_fid)))
- RETURN(-EFAULT);
+ if (copy_from_user(&fid, (struct lu_fid *)arg, sizeof(fid)))
+ RETURN(-EFAULT);
- id = fid_oid(&fid) | ((fid_seq(&fid) & 0xffff) << 32);
- ost_idx = (fid_seq(&fid) >> 16) & 0xffff;
- RETURN(ll_lov_recreate(inode, id, 0, ost_idx));
+ 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,
- 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};
* 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)) {
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);
+ 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))
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);
}
}
static int ll_lov_setea(struct inode *inode, struct file *file,
unsigned long arg)
{
- int 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);
- int rc;
- ENTRY;
+ __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);
+ int rc;
+ ENTRY;
- if (!cfs_capable(CFS_CAP_SYS_ADMIN))
- RETURN(-EPERM);
+ if (!cfs_capable(CFS_CAP_SYS_ADMIN))
+ RETURN(-EPERM);
- OBD_ALLOC_LARGE(lump, lum_size);
- if (lump == NULL) {
+ OBD_ALLOC_LARGE(lump, lum_size);
+ if (lump == NULL)
RETURN(-ENOMEM);
- }
- if (cfs_copy_from_user(lump, (struct lov_user_md *)arg, lum_size)) {
- OBD_FREE_LARGE(lump, lum_size);
- RETURN(-EFAULT);
- }
- rc = ll_lov_setstripe_ea_info(inode, file, flags, lump, lum_size);
+ if (copy_from_user(lump, (struct lov_user_md *)arg, lum_size)) {
+ OBD_FREE_LARGE(lump, lum_size);
+ RETURN(-EFAULT);
+ }
- OBD_FREE_LARGE(lump, lum_size);
- RETURN(rc);
+ rc = ll_lov_setstripe_ea_info(inode, file, flags, lump, lum_size);
+
+ OBD_FREE_LARGE(lump, lum_size);
+ RETURN(rc);
}
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;
- int rc;
- int flags = FMODE_WRITE;
- ENTRY;
+ 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;
+ ENTRY;
- /* first try with v1 which is smaller than v3 */
- lum_size = sizeof(struct lov_user_md_v1);
- if (cfs_copy_from_user(lumv1, lumv1p, lum_size))
- RETURN(-EFAULT);
+ /* 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 (cfs_copy_from_user(&lumv3, lumv3p, 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_lov_setstripe_ea_info(inode, file, flags, lumv1, lum_size);
- if (rc == 0) {
+ rc = ll_lov_setstripe_ea_info(inode, file, flags, lumv1, lum_size);
+ if (rc == 0) {
struct lov_stripe_md *lsm;
+ __u32 gen;
+
put_user(0, &lumv1p->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);
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);
}
/**
!(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);
int ll_fid2path(struct inode *inode, void *arg)
{
- struct obd_export *exp = ll_i2mdexp(inode);
- struct getinfo_fid2path *gfout, *gfin;
- int outsize, rc;
- ENTRY;
+ struct obd_export *exp = ll_i2mdexp(inode);
+ struct getinfo_fid2path *gfout, *gfin;
+ int outsize, 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 (cfs_copy_from_user(gfin, arg, sizeof(*gfin))) {
- OBD_FREE_PTR(gfin);
- RETURN(-EFAULT);
- }
+ /* 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);
+ RETURN(-EFAULT);
+ }
- outsize = sizeof(*gfout) + gfin->gf_pathlen;
- OBD_ALLOC(gfout, outsize);
- if (gfout == NULL) {
- OBD_FREE_PTR(gfin);
- RETURN(-ENOMEM);
- }
- memcpy(gfout, gfin, sizeof(*gfout));
- OBD_FREE_PTR(gfin);
+ outsize = sizeof(*gfout) + gfin->gf_pathlen;
+ OBD_ALLOC(gfout, outsize);
+ if (gfout == NULL) {
+ OBD_FREE_PTR(gfin);
+ RETURN(-ENOMEM);
+ }
+ memcpy(gfout, gfin, sizeof(*gfout));
+ OBD_FREE_PTR(gfin);
- /* Call mdc_iocontrol */
- rc = obd_iocontrol(OBD_IOC_FID2PATH, exp, outsize, gfout, NULL);
- if (rc)
- GOTO(gf_free, rc);
- if (cfs_copy_to_user(arg, gfout, outsize))
- rc = -EFAULT;
+ /* Call mdc_iocontrol */
+ 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;
gf_free:
- OBD_FREE(gfout, outsize);
- RETURN(rc);
+ OBD_FREE(gfout, outsize);
+ RETURN(rc);
}
static int ll_ioctl_fiemap(struct inode *inode, unsigned long arg)
if (fiemap_s == NULL)
RETURN(-ENOMEM);
- /* get the fiemap value */
- if (copy_from_user(fiemap_s,(struct ll_user_fiemap __user *)arg,
- sizeof(*fiemap_s)))
- GOTO(error, rc = -EFAULT);
+ /* get the fiemap value */
+ if (copy_from_user(fiemap_s, (struct ll_user_fiemap __user *)arg,
+ sizeof(*fiemap_s)))
+ GOTO(error, rc = -EFAULT);
/* If fm_extent_count is non-zero, read the first extent since
* it is used to calculate end_offset and device from previous
ret_bytes += (fiemap_s->fm_mapped_extents *
sizeof(struct ll_fiemap_extent));
- if (copy_to_user((void *)arg, fiemap_s, ret_bytes))
- rc = -EFAULT;
+ if (copy_to_user((void *)arg, fiemap_s, ret_bytes))
+ rc = -EFAULT;
error:
OBD_FREE_LARGE(fiemap_s, num_bytes);
* 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
*/
-static 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);
- struct obdo *obdo = NULL;
- int rc;
+ struct lov_stripe_md *lsm = NULL;
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct obdo *obdo = NULL;
+ int rc;
ENTRY;
/* If no stripe, we consider version is 0. */
lsm = ccc_inode_lsm_get(inode);
- if (lsm == NULL) {
- *data_version = 0;
- CDEBUG(D_INODE, "No object for inode\n");
- RETURN(0);
- }
+ if (!lsm_has_objects(lsm)) {
+ *data_version = 0;
+ CDEBUG(D_INODE, "No object for inode\n");
+ GOTO(out, rc = 0);
+ }
- OBD_ALLOC_PTR(obdo);
- if (obdo == NULL) {
- ccc_inode_lsm_put(inode, lsm);
+ OBD_ALLOC_PTR(obdo);
+ if (obdo == NULL)
+ GOTO(out, rc = -ENOMEM);
+
+ 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
+ *data_version = obdo->o_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);
}
- rc = ll_lsm_getattr(lsm, sbi->ll_dt_exp, NULL, obdo, 0, extent_lock);
- if (!rc) {
- if (!(obdo->o_valid & OBD_MD_FLDATAVERSION))
- rc = -EOPNOTSUPP;
- else
- *data_version = obdo->o_data_version;
- }
+ 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);
- OBD_FREE_PTR(obdo);
- ccc_inode_lsm_put(inode, lsm);
+ 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 = hui->hui_uid;
+ attr->ia_gid = 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);
+
+ if (attr != NULL)
+ OBD_FREE_PTR(attr);
+
+ RETURN(rc);
+}
+
+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);
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:
case FSFILT_IOC_SETVERSION_OLD:
case FSFILT_IOC_SETVERSION:
*/
- case LL_IOC_FLUSHCTX:
- RETURN(ll_flush_ctx(inode));
- case LL_IOC_PATH2FID: {
- if (cfs_copy_to_user((void *)arg, ll_inode2fid(inode),
- sizeof(struct lu_fid)))
- RETURN(-EFAULT);
+ case LL_IOC_FLUSHCTX:
+ RETURN(ll_flush_ctx(inode));
+ case LL_IOC_PATH2FID: {
+ if (copy_to_user((void *)arg, ll_inode2fid(inode),
+ sizeof(struct lu_fid)))
+ RETURN(-EFAULT);
- RETURN(0);
- }
- case OBD_IOC_FID2PATH:
+ RETURN(0);
+ }
+ case OBD_IOC_FID2PATH:
RETURN(ll_fid2path(inode, (void *)arg));
- case LL_IOC_DATA_VERSION: {
- struct ioc_data_version idv;
- int rc;
+ case LL_IOC_DATA_VERSION: {
+ struct ioc_data_version idv;
+ int rc;
- if (cfs_copy_from_user(&idv, (char *)arg, sizeof(idv)))
- RETURN(-EFAULT);
+ 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 &&
- cfs_copy_to_user((char *) arg, &idv, sizeof(idv)))
- RETURN(-EFAULT);
+ if (rc == 0 && copy_to_user((char *) arg, &idv, sizeof(idv)))
+ RETURN(-EFAULT);
- RETURN(rc);
- }
+ RETURN(rc);
+ }
case LL_IOC_GET_MDTIDX: {
int mdtidx;
RETURN(0);
}
- case OBD_IOC_GETDTNAME:
- case OBD_IOC_GETMDNAME:
- RETURN(ll_get_obd_name(inode, cmd, arg));
- default: {
- int err;
-
- if (LLIOC_STOP ==
- ll_iocontrol_call(inode, file, cmd, arg, &err))
- RETURN(err);
-
- RETURN(obd_iocontrol(cmd, ll_i2dtexp(inode), 0, NULL,
- (void *)arg));
- }
- }
+ case OBD_IOC_GETDTNAME:
+ case OBD_IOC_GETMDNAME:
+ RETURN(ll_get_obd_name(inode, cmd, arg));
+ case LL_IOC_HSM_STATE_GET: {
+ struct md_op_data *op_data;
+ struct hsm_user_state *hus;
+ int rc;
+
+ OBD_ALLOC_PTR(hus);
+ if (hus == NULL)
+ RETURN(-ENOMEM);
+
+ op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
+ LUSTRE_OPC_ANY, hus);
+ if (IS_ERR(op_data)) {
+ OBD_FREE_PTR(hus);
+ RETURN(PTR_ERR(op_data));
+ }
+
+ rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data),
+ op_data, NULL);
+
+ if (copy_to_user((void *)arg, hus, sizeof(*hus)))
+ rc = -EFAULT;
+
+ ll_finish_md_op_data(op_data);
+ OBD_FREE_PTR(hus);
+ RETURN(rc);
+ }
+ case LL_IOC_HSM_STATE_SET: {
+ 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);
+ }
+
+ rc = ll_hsm_state_set(inode, hss);
+
+ OBD_FREE_PTR(hss);
+ RETURN(rc);
+ }
+ case LL_IOC_HSM_ACTION: {
+ struct md_op_data *op_data;
+ struct hsm_current_action *hca;
+ int rc;
+
+ OBD_ALLOC_PTR(hca);
+ if (hca == NULL)
+ RETURN(-ENOMEM);
+
+ op_data = ll_prep_md_op_data(NULL, inode, NULL, NULL, 0, 0,
+ LUSTRE_OPC_ANY, hca);
+ if (IS_ERR(op_data)) {
+ OBD_FREE_PTR(hca);
+ RETURN(PTR_ERR(op_data));
+ }
+
+ rc = obd_iocontrol(cmd, ll_i2mdexp(inode), sizeof(*op_data),
+ op_data, NULL);
+
+ 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;
+
+ if (LLIOC_STOP ==
+ ll_iocontrol_call(inode, file, cmd, arg, &err))
+ RETURN(err);
+
+ RETURN(obd_iocontrol(cmd, ll_i2dtexp(inode), 0, NULL,
+ (void *)arg));
+ }
+ }
}
#ifndef HAVE_FILE_LLSEEK_SIZE
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);
}
* 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;
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;
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;
#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;
+#endif
+ struct inode *inode = dentry->d_inode;
struct ll_inode_info *lli = ll_i2info(inode);
struct ptlrpc_request *req;
struct obd_capa *oc;
}
oc = ll_mdscapa_get(inode);
- err = md_sync(ll_i2sbi(inode)->ll_md_exp, ll_inode2fid(inode), oc,
- &req);
+ 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 (datasync && 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);
+ CL_FSYNC_ALL, 0);
if (rc == 0 && err < 0)
rc = err;
if (rc < 0)
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;
- ENTRY;
+ 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;
+ int rc2 = 0;
+ ENTRY;
CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu file_lock=%p\n",
inode->i_ino, file_lock);
rc = md_enqueue(sbi->ll_md_exp, &einfo, NULL,
op_data, &lockh, &flock, 0, NULL /* req */, flags);
- ll_finish_md_op_data(op_data);
-
if ((file_lock->fl_flags & FL_FLOCK) &&
(rc == 0 || file_lock->fl_type == F_UNLCK))
- flock_lock_file_wait(file, file_lock);
+ rc2 = flock_lock_file_wait(file, file_lock);
if ((file_lock->fl_flags & FL_POSIX) &&
(rc == 0 || file_lock->fl_type == F_UNLCK) &&
!(flags & LDLM_FL_TEST_LOCK))
- posix_lock_file_wait(file, file_lock);
+ rc2 = posix_lock_file_wait(file, 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);
+ rc = rc2;
+ }
+
+ ll_finish_md_op_data(op_data);
RETURN(rc);
}
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)) {
}
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;
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)
/* 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;
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)) {
RETURN(rc);
}
- rc = ll_prep_inode(&inode, req, NULL);
+ rc = ll_prep_inode(&inode, req, NULL, NULL);
}
out:
ptlrpc_req_finished(req);
}
int ll_inode_revalidate_it(struct dentry *dentry, struct lookup_intent *it,
- __u64 ibits)
+ __u64 ibits)
{
- struct inode *inode = dentry->d_inode;
- int rc;
- ENTRY;
+ struct inode *inode = dentry->d_inode;
+ int rc;
+ ENTRY;
- rc = __ll_inode_revalidate_it(dentry, it, ibits);
+ rc = __ll_inode_revalidate_it(dentry, it, ibits);
if (rc != 0)
RETURN(rc);
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,
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)
{
OBD_FREE_LARGE(fiemap, num_bytes);
return rc;
}
-#endif
struct posix_acl * ll_get_acl(struct inode *inode, int type)
{
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,
/* 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,
.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
result = cl_conf_set(env, lli->lli_clob, conf);
cl_env_nested_put(&nest, env);
+
+ if (conf->coc_opc == OBJECT_CONF_SET) {
+ struct ldlm_lock *lock = conf->coc_lock;
+
+ LASSERT(lock != NULL);
+ LASSERT(ldlm_has_layout(lock));
+ if (result == 0) {
+ /* 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);
+ }
+ }
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)), !!(lock->l_flags & LDLM_FL_LVB_READY),
+ lock->l_lvb_data, lock->l_lvb_len);
+
+ if ((lock->l_lvb_data != NULL) && (lock->l_flags & LDLM_FL_LVB_READY))
+ 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_max_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 || body->eadatasize > lmmsize)
+ GOTO(out, rc = -EPROTO);
+
+ lmmsize = body->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.
+ */
+static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode,
+ struct inode *inode, __u32 *gen, bool reconf)
+{
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct ll_sb_info *sbi = ll_i2sbi(inode);
+ struct ldlm_lock *lock;
+ struct lustre_md md = { NULL };
+ struct cl_object_conf conf;
+ int rc = 0;
+ bool lvb_ready;
+ bool wait_layout = false;
+ ENTRY;
+
+ LASSERT(lustre_handle_is_used(lockh));
+
+ lock = ldlm_handle2lock(lockh);
+ LASSERT(lock != NULL);
+ LASSERT(ldlm_has_layout(lock));
+
+ LDLM_DEBUG(lock, "File %p/"DFID" being reconfigured: %d.\n",
+ inode, PFID(&lli->lli_fid), 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);
+ 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) {
+ 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;
+ rc = 0;
+ }
+ 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()
+ * for the condition to free lvb_data of layout lock */
+ if (lock->l_lvb_data != NULL) {
+ 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;
+ } else {
+ CERROR("%s: file "DFID" unpackmd error: %d\n",
+ ll_get_fsname(inode->i_sb, NULL, 0),
+ PFID(&lli->lli_fid), rc);
+ }
+ }
+ if (rc < 0)
+ GOTO(out, rc);
+
+ /* set layout to file. Unlikely this will fail as old layout was
+ * surely eliminated */
+ memset(&conf, 0, sizeof conf);
+ conf.coc_opc = OBJECT_CONF_SET;
+ conf.coc_inode = inode;
+ conf.coc_lock = lock;
+ conf.u.coc_md = &md;
+ rc = ll_layout_conf(inode, &conf);
+
+ 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 (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));
+
+ memset(&conf, 0, sizeof conf);
+ conf.coc_opc = OBJECT_CONF_WAIT;
+ conf.coc_inode = inode;
+ rc = ll_layout_conf(inode, &conf);
+ if (rc == 0)
+ rc = -EAGAIN;
+
+ CDEBUG(D_INODE, "file: "DFID" waiting layout return: %d.\n",
+ PFID(&lli->lli_fid), rc);
+ }
+ RETURN(rc);
+}
+
/**
* This function checks if there exists a LAYOUT lock on the client side,
* or enqueues it if it doesn't have one in cache.
{
struct ll_inode_info *lli = ll_i2info(inode);
struct ll_sb_info *sbi = ll_i2sbi(inode);
- struct md_op_data *op_data = NULL;
- struct lookup_intent it = { .it_op = IT_LAYOUT };
- struct lustre_handle lockh = { 0 };
+ struct md_op_data *op_data;
+ 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 = 0;
+ *gen = lli->lli_layout_gen;
if (!(sbi->ll_flags & LL_SBI_LAYOUT_LOCK))
RETURN(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,
- LDLM_FL_LVB_READY);
+ 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 */
- /* lsm_layout_gen is started from 0, plus 1 here to distinguish
- * the cases of no layout and first layout. */
- *gen = lli->lli_layout_gen + 1;
+ rc = ll_layout_lock_set(&lockh, mode, inode, gen, false);
+ if (rc == 0)
+ RETURN(0);
- ldlm_lock_decref(&lockh, mode);
- RETURN(0);
+ /* better hold lli_layout_mutex to try again otherwise
+ * it will have starvation problem. */
}
- op_data = ll_prep_md_op_data(NULL, inode, inode, NULL,
- 0, 0, LUSTRE_OPC_ANY, NULL);
- if (IS_ERR(op_data))
- RETURN(PTR_ERR(op_data));
-
/* take layout lock mutex to enqueue layout lock exclusively. */
mutex_lock(&lli->lli_layout_mutex);
- /* try again inside layout mutex */
- mode = ll_take_md_lock(inode, MDS_INODELOCK_LAYOUT, &lockh,
- LDLM_FL_LVB_READY);
+again:
+ /* try again. Maybe somebody else has done this. */
+ 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 */
- *gen = lli->lli_layout_gen + 1;
+ rc = ll_layout_lock_set(&lockh, mode, inode, gen, true);
+ if (rc == -EAGAIN)
+ goto again;
- ldlm_lock_decref(&lockh, mode);
mutex_unlock(&lli->lli_layout_mutex);
- ll_finish_md_op_data(op_data);
- RETURN(0);
+ RETURN(rc);
+ }
+
+ op_data = ll_prep_md_op_data(NULL, inode, inode, NULL,
+ 0, 0, LUSTRE_OPC_ANY, NULL);
+ if (IS_ERR(op_data)) {
+ mutex_unlock(&lli->lli_layout_mutex);
+ RETURN(PTR_ERR(op_data));
}
/* have to enqueue one */
+ memset(&it, 0, sizeof(it));
+ 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));
+
rc = md_enqueue(sbi->ll_md_exp, &einfo, &it, op_data, &lockh,
NULL, 0, NULL, 0);
if (it.d.lustre.it_data != NULL)
ptlrpc_req_finished(it.d.lustre.it_data);
it.d.lustre.it_data = NULL;
- if (rc == 0) {
- struct ldlm_lock *lock;
- struct cl_object_conf conf;
- struct lustre_md md = { NULL };
- void *lmm;
- int lmmsize;
+ ll_finish_md_op_data(op_data);
- LASSERT(lustre_handle_is_used(&lockh));
+ mode = it.d.lustre.it_lock_mode;
+ it.d.lustre.it_lock_mode = 0;
+ ll_intent_drop_lock(&it);
+ if (rc == 0) {
/* set lock data in case this is a new lock */
ll_set_lock_data(sbi->ll_md_exp, inode, &it, NULL);
+ rc = ll_layout_lock_set(&lockh, mode, inode, gen, true);
+ if (rc == -EAGAIN)
+ goto again;
+ }
+ mutex_unlock(&lli->lli_layout_mutex);
- lock = ldlm_handle2lock(&lockh);
- LASSERT(lock != NULL);
-
- /* for IT_LAYOUT lock, lmm is returned in lock's lvb
- * data via completion callback */
- lmm = lock->l_lvb_data;
- lmmsize = lock->l_lvb_len;
- if (lmm != NULL) {
- rc = obd_unpackmd(sbi->ll_dt_exp, &md.lsm,
- lmm, lmmsize);
- if (rc >= 0) {
- if (md.lsm != NULL)
- *gen = md.lsm->lsm_layout_gen + 1;
- rc = 0;
- } else {
- CERROR("file: "DFID" unpackmd error: %d\n",
- PFID(&lli->lli_fid), rc);
- }
- }
- LDLM_LOCK_PUT(lock);
+ RETURN(rc);
+}
- /* set layout to file. This may cause lock expiration as we
- * set layout inside layout ibits lock. */
- memset(&conf, 0, sizeof conf);
- conf.coc_inode = inode;
- conf.u.coc_md = &md;
- ll_layout_conf(inode, &conf);
- /* is this racy? */
- lli->lli_has_smd = md.lsm != NULL;
- if (md.lsm != NULL)
- obd_free_memmd(sbi->ll_dt_exp, &md.lsm);
- }
- ll_intent_drop_lock(&it);
+/**
+ * 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;
- mutex_unlock(&lli->lli_layout_mutex);
- ll_finish_md_op_data(op_data);
+ 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);
}
+