* Author: Andreas Dilger <adilger@clusterfs.com>
* Author: Phil Schwan <phil@clusterfs.com>
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This file is part of the Lustre file system, http://www.lustre.org
+ * Lustre is a trademark of Cluster File Systems, Inc.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * You may have signed or agreed to another license before downloading
+ * this software. If so, you are bound by the terms and conditions
+ * of that agreement, and the following does not apply to you. See the
+ * LICENSE file included with this distribution for more information.
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * If you did not agree to a different license, then this copy of Lustre
+ * is open source software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * In either case, Lustre is distributed in the hope that it will be
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * license text for more details.
*/
/* code for handling open unlinked files */
#define DEBUG_SUBSYSTEM S_MDS
+#ifndef AUTOCONF_INCLUDED
#include <linux/config.h>
+#endif
#include <linux/module.h>
#include <linux/version.h>
-#include <portals/list.h>
-#include <linux/obd_class.h>
-#include <linux/lustre_fsfilt.h>
-#include <linux/lustre_commit_confd.h>
-#include <linux/lvfs.h>
+#include <libcfs/list.h>
+#include <obd_class.h>
+#include <lustre_fsfilt.h>
+#include <lustre_mds.h>
+#include <lustre_commit_confd.h>
+#include <lvfs.h>
#include "mds_internal.h"
-
-/* If we are unlinking an open file/dir (i.e. creating an orphan) then
- * we instead link the inode into the PENDING directory until it is
- * finally released. We can't simply call mds_reint_rename() or some
- * part thereof, because we don't have the inode to check for link
- * count/open status until after it is locked.
- *
- * For lock ordering, we always get the PENDING, then pending_child lock
- * last to avoid deadlocks.
- */
-
-int mds_open_unlink_rename(struct mds_update_record *rec,
- struct obd_device *obd, struct dentry *dparent,
- struct dentry *dchild, void **handle)
-{
- struct mds_obd *mds = &obd->u.mds;
- struct inode *pending_dir = mds->mds_pending_dir->d_inode;
- struct dentry *pending_child;
- char fidname[LL_FID_NAMELEN];
- int fidlen = 0, rc;
- ENTRY;
-
- LASSERT(!mds_inode_is_orphan(dchild->d_inode));
-
- down(&pending_dir->i_sem);
- fidlen = ll_fid2str(fidname, dchild->d_inode->i_ino,
- dchild->d_inode->i_generation);
-
- CDEBUG(D_HA, "pending destroy of %dx open file %s = %s\n",
- mds_open_orphan_count(dchild->d_inode), rec->ur_name, fidname);
-
- pending_child = lookup_one_len(fidname, mds->mds_pending_dir, fidlen);
- if (IS_ERR(pending_child))
- GOTO(out_lock, rc = PTR_ERR(pending_child));
-
- if (pending_child->d_inode != NULL) {
- CERROR("re-destroying orphan file %s?\n", rec->ur_name);
- LASSERT(pending_child->d_inode == dchild->d_inode);
- GOTO(out_dput, rc = 0);
- }
-
- *handle = fsfilt_start(obd, pending_dir, FSFILT_OP_RENAME, NULL);
- if (IS_ERR(*handle))
- GOTO(out_dput, rc = PTR_ERR(*handle));
-
- lock_kernel();
- rc = vfs_rename(dparent->d_inode, dchild, pending_dir, pending_child);
- unlock_kernel();
- if (rc)
- CERROR("error renaming orphan %lu/%s to PENDING: rc = %d\n",
- dparent->d_inode->i_ino, rec->ur_name, rc);
- else
- mds_inode_set_orphan(dchild->d_inode);
-out_dput:
- dput(pending_child);
-out_lock:
- up(&pending_dir->i_sem);
- RETURN(rc);
-}
-
-static int mds_osc_destroy_orphan(struct mds_obd *mds,
- struct inode *inode,
+int mds_osc_destroy_orphan(struct obd_device *obd,
+ umode_t mode,
struct lov_mds_md *lmm,
int lmm_size,
struct llog_cookie *logcookies,
int log_unlink)
{
+ struct mds_obd *mds = &obd->u.mds;
struct lov_stripe_md *lsm = NULL;
struct obd_trans_info oti = { 0 };
struct obdo *oa;
rc = 0;
}
- oa = obdo_alloc();
+ rc = obd_checkmd(mds->mds_osc_exp, obd->obd_self_export, lsm);
+ if (rc)
+ GOTO(out_free_memmd, rc);
+
+ OBDO_ALLOC(oa);
if (oa == NULL)
GOTO(out_free_memmd, rc = -ENOMEM);
oa->o_id = lsm->lsm_object_id;
- oa->o_mode = inode->i_mode & S_IFMT;
- oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE;
+ oa->o_gr = lsm->lsm_object_gr;
+ oa->o_mode = mode & S_IFMT;
+ oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | OBD_MD_FLGROUP;
if (log_unlink && logcookies) {
oa->o_valid |= OBD_MD_FLCOOKIE;
oti.oti_logcookies = logcookies;
}
-
- rc = obd_destroy(mds->mds_osc_exp, oa, lsm, &oti);
- obdo_free(oa);
+ rc = obd_destroy(mds->mds_osc_exp, oa, lsm, &oti, obd->obd_self_export);
+ OBDO_FREE(oa);
if (rc)
- CERROR("destroy orphan objid 0x"LPX64" on ost error "
+ CDEBUG(D_INODE, "destroy orphan objid 0x"LPX64" on ost error "
"%d\n", lsm->lsm_object_id, rc);
out_free_memmd:
obd_free_memmd(mds->mds_osc_exp, &lsm);
struct mds_obd *mds = &obd->u.mds;
struct lov_mds_md *lmm = NULL;
struct llog_cookie *logcookies = NULL;
- int lmm_size = 0, log_unlink = 0;
+ int lmm_size, log_unlink = 0, cookie_size = 0;
void *handle = NULL;
+ umode_t mode;
int rc, err;
ENTRY;
LASSERT(mds->mds_osc_obd != NULL);
+
+ /* We don't need to do any of these other things for orhpan dirs,
+ * especially not mds_get_md (may get a default LOV EA, bug 4554) */
+ mode = inode->i_mode;
+ if (S_ISDIR(mode)) {
+ rc = vfs_rmdir(pending_dir, dchild);
+ if (rc)
+ CERROR("error %d unlinking dir %*s from PENDING\n",
+ rc, dchild->d_name.len, dchild->d_name.name);
+ RETURN(rc);
+ }
- OBD_ALLOC(lmm, mds->mds_max_mdsize);
+ lmm_size = mds->mds_max_mdsize;
+ OBD_ALLOC(lmm, lmm_size);
if (lmm == NULL)
RETURN(-ENOMEM);
- down(&inode->i_sem);
- rc = fsfilt_get_md(obd, inode, lmm, mds->mds_max_mdsize);
- up(&inode->i_sem);
-
- if (rc < 0) {
- CERROR("Error %d reading eadata for ino %lu\n",
- rc, inode->i_ino);
+ rc = mds_get_md(obd, inode, lmm, &lmm_size, 1);
+ if (rc < 0)
GOTO(out_free_lmm, rc);
- } else if (rc > 0) {
- lmm_size = rc;
- rc = mds_convert_lov_ea(obd, inode, lmm, lmm_size);
- if (rc > 0)
- lmm_size = rc;
- rc = 0;
- }
handle = fsfilt_start_log(obd, pending_dir, FSFILT_OP_UNLINK, NULL,
le32_to_cpu(lmm->lmm_stripe_count));
GOTO(out_free_lmm, rc);
}
- down(&inode->i_sem);
- rc = fsfilt_get_md(obd, inode, lmm, mds->mds_max_mdsize);
- up(&inode->i_sem);
-
- if (rc < 0) {
- CERROR("Error %d reading eadata for ino %lu\n",
- rc, inode->i_ino);
- GOTO(out_free_lmm, rc);
- } else if (rc > 0) {
- lmm_size = rc;
- rc = 0;
- }
-
- if (S_ISDIR(inode->i_mode))
- rc = vfs_rmdir(pending_dir, dchild);
- else
- rc = vfs_unlink(pending_dir, dchild);
-
- if (rc)
- CERROR("error %d unlinking orphan %*s from PENDING directory\n",
+ rc = vfs_unlink(pending_dir, dchild);
+ if (rc) {
+ CERROR("error %d unlinking orphan %.*s from PENDING\n",
rc, dchild->d_name.len, dchild->d_name.name);
-
- if (!rc && lmm_size) {
- OBD_ALLOC(logcookies, mds->mds_max_cookiesize);
+ } else if (lmm_size) {
+ cookie_size = mds_get_cookie_size(obd, lmm);
+ OBD_ALLOC(logcookies, cookie_size);
if (logcookies == NULL)
rc = -ENOMEM;
- else if (mds_log_op_unlink(obd, inode, lmm,lmm_size,logcookies,
- mds->mds_max_cookiesize) > 0)
+ else if (mds_log_op_unlink(obd, lmm,lmm_size,logcookies,
+ cookie_size) > 0)
log_unlink = 1;
}
+
err = fsfilt_commit(obd, pending_dir, handle, 0);
if (err) {
CERROR("error committing orphan unlink: %d\n", err);
if (!rc)
rc = err;
- }
- if (!rc) {
- rc = mds_osc_destroy_orphan(mds, inode, lmm, lmm_size,
+ } else if (!rc) {
+ rc = mds_osc_destroy_orphan(obd, mode, lmm, lmm_size,
logcookies, log_unlink);
}
if (logcookies != NULL)
- OBD_FREE(logcookies, mds->mds_max_cookiesize);
+ OBD_FREE(logcookies, cookie_size);
out_free_lmm:
OBD_FREE(lmm, mds->mds_max_mdsize);
RETURN(rc);
}
-int mds_cleanup_orphans(struct obd_device *obd)
+/* Delete inodes which were previously open-unlinked but were not reopened
+ * during MDS recovery for whatever reason (e.g. client also failed, recovery
+ * aborted, etc). */
+int mds_cleanup_pending(struct obd_device *obd)
{
struct mds_obd *mds = &obd->u.mds;
- struct obd_run_ctxt saved;
+ struct lvfs_run_ctxt saved;
struct file *file;
struct dentry *dchild, *dentry;
struct vfsmount *mnt;
struct l_linux_dirent *dirent, *n;
struct list_head dentry_list;
char d_name[LL_FID_NAMELEN];
- __u64 i = 0;
- int rc = 0, item = 0, namlen;
+ unsigned long inum;
+ int i = 0, rc = 0, item = 0, namlen;
ENTRY;
- push_ctxt(&saved, &obd->obd_ctxt, NULL);
+ push_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
+ /* dentry and mnt ref dropped in dentry_open() on error, or
+ * in filp_close() if dentry_open() succeeds */
dentry = dget(mds->mds_pending_dir);
if (IS_ERR(dentry))
GOTO(err_pop, rc = PTR_ERR(dentry));
if (IS_ERR(file))
GOTO(err_pop, rc = PTR_ERR(file));
- INIT_LIST_HEAD(&dentry_list);
+ CFS_INIT_LIST_HEAD(&dentry_list);
rc = l_readdir(file, &dentry_list);
filp_close(file, 0);
if (rc < 0)
GOTO(err_out, rc);
list_for_each_entry_safe(dirent, n, &dentry_list, lld_list) {
- i ++;
+ i++;
list_del(&dirent->lld_list);
namlen = strlen(dirent->lld_name);
LASSERT(sizeof(d_name) >= namlen + 1);
strcpy(d_name, dirent->lld_name);
+ inum = dirent->lld_ino;
OBD_FREE(dirent, sizeof(*dirent));
- CDEBUG(D_INODE, "entry "LPU64" of PENDING DIR: %s\n",
- i, d_name);
+ CDEBUG(D_INODE, "entry %d of PENDING DIR: %s\n", i, d_name);
if (((namlen == 1) && !strcmp(d_name, ".")) ||
- ((namlen == 2) && !strcmp(d_name, ".."))) {
+ ((namlen == 2) && !strcmp(d_name, "..")) || inum == 0)
continue;
- }
- down(&pending_dir->i_sem);
+ LOCK_INODE_MUTEX(pending_dir);
dchild = lookup_one_len(d_name, mds->mds_pending_dir, namlen);
if (IS_ERR(dchild)) {
- up(&pending_dir->i_sem);
+ UNLOCK_INODE_MUTEX(pending_dir);
GOTO(err_out, rc = PTR_ERR(dchild));
}
if (!dchild->d_inode) {
- CERROR("orphan %s has been removed\n", d_name);
+ CWARN("%s: orphan %s has already been removed\n",
+ obd->obd_name, d_name);
GOTO(next, rc = 0);
}
+ if (is_bad_inode(dchild->d_inode)) {
+ CERROR("%s: bad orphan inode found %lu/%u\n",
+ obd->obd_name, dchild->d_inode->i_ino,
+ dchild->d_inode->i_generation);
+ GOTO(next, rc = -ENOENT);
+ }
+
child_inode = dchild->d_inode;
+ MDS_DOWN_READ_ORPHAN_SEM(child_inode);
if (mds_inode_is_orphan(child_inode) &&
- mds_open_orphan_count(child_inode)) {
- CWARN("orphan %s was re-opened during recovery\n", d_name);
+ mds_orphan_open_count(child_inode)) {
+ MDS_UP_READ_ORPHAN_SEM(child_inode);
+ CWARN("%s: orphan %s re-opened during recovery\n",
+ obd->obd_name, d_name);
GOTO(next, rc = 0);
}
+ MDS_UP_READ_ORPHAN_SEM(child_inode);
rc = mds_unlink_orphan(obd, dchild, child_inode, pending_dir);
- if (rc == 0) {
- item ++;
- CWARN("removed orphan %s from MDS and OST\n", d_name);
- } else {
- CERROR("removed orphan %s from MDS and OST failed,"
- " rc = %d\n", d_name, rc);
+ CDEBUG(D_INODE, "%s: removed orphan %s: rc %d\n",
+ obd->obd_name, d_name, rc);
+ if (rc == 0)
+ item++;
+ else
rc = 0;
- }
next:
l_dput(dchild);
- up(&pending_dir->i_sem);
+ UNLOCK_INODE_MUTEX(pending_dir);
}
+ rc = 0;
err_out:
list_for_each_entry_safe(dirent, n, &dentry_list, lld_list) {
list_del(&dirent->lld_list);
OBD_FREE(dirent, sizeof(*dirent));
}
err_pop:
- pop_ctxt(&saved, &obd->obd_ctxt, NULL);
- if (rc == 0)
- rc = item;
+ pop_ctxt(&saved, &obd->obd_lvfs_ctxt, NULL);
+ if (item > 0)
+ CWARN("%s: removed %d pending open-unlinked files\n",
+ obd->obd_name, item);
RETURN(rc);
err_mntget:
git://git.whamcloud.com / fs / lustre-release.git / blobdiff