/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * This code is issued under the GNU General Public License.
- * See the file COPYING in this distribution
+ * Copyright (c) 2002, 2003 Cluster File Systems, Inc.
*
- * Copyright (C) 1992, 1993, 1994, 1995
- * Remy Card (card@masi.ibp.fr)
- * Laboratoire MASI - Institut Blaise Pascal
- * Universite Pierre et Marie Curie (Paris VI)
+ * This file is part of Lustre, http://www.lustre.org.
*
- * from
+ * 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.
*
- * linux/fs/ext2/namei.c
+ * 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.
+ *
+ * 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.
+ *
+ * derived in small part from linux/fs/ext2/namei.c
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
* David S. Miller (davem@caip.rutgers.edu), 1995
* Directory entry file type support and forward compatibility hooks
* for B-tree directories by Theodore Ts'o (tytso@mit.edu), 1998
- *
- * Changes for use in OBDFS
- * Copyright (c) 1999, Seagate Technology Inc.
- * Copyright (C) 2001, Cluster File Systems, Inc.
- * Rewritten based on recent ext2 page cache use.
- *
*/
#include <linux/fs.h>
-#include <linux/locks.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/smp_lock.h>
#include <linux/quotaops.h>
+#include <linux/highmem.h>
+#include <linux/pagemap.h>
#define DEBUG_SUBSYSTEM S_LLITE
#include <linux/obd_support.h>
#include <linux/lustre_lite.h>
#include <linux/lustre_dlm.h>
-#include <linux/obd_lov.h>
-
-extern struct address_space_operations ll_aops;
-
-/* from super.c */
-extern void ll_change_inode(struct inode *inode);
-extern int ll_setattr(struct dentry *de, struct iattr *attr);
-
-/* from dir.c */
-extern int ll_add_link (struct dentry *dentry, struct inode *inode);
-obd_id ll_inode_by_name(struct inode * dir, struct dentry *dentry, int *typ);
-int ext2_make_empty(struct inode *inode, struct inode *parent);
-struct ext2_dir_entry_2 * ext2_find_entry (struct inode * dir,
- struct dentry *dentry, struct page ** res_page);
-int ext2_delete_entry (struct ext2_dir_entry_2 * dir, struct page * page );
-int ext2_empty_dir (struct inode * inode);
-struct ext2_dir_entry_2 * ext2_dotdot (struct inode *dir, struct page **p);
-void ext2_set_link(struct inode *dir, struct ext2_dir_entry_2 *de,
- struct page *page, struct inode *inode);
+#include <linux/lustre_version.h>
+#include "llite_internal.h"
-/*
- * Couple of helper functions - make the code slightly cleaner.
- */
-static inline void ext2_inc_count(struct inode *inode)
-{
- inode->i_nlink++;
-}
+/* methods */
-/* postpone the disk update until the inode really goes away */
-static inline void ext2_dec_count(struct inode *inode)
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+static int ll_test_inode(struct inode *inode, unsigned long ino, void *opaque)
+#else
+static int ll_test_inode(struct inode *inode, void *opaque)
+#endif
{
- inode->i_nlink--;
-}
+ static int last_ino, last_gen, last_count;
+ struct lustre_md *md = opaque;
-static inline int ext2_add_nondir(struct dentry *dentry, struct inode *inode)
-{
- int err;
- err = ll_add_link(dentry, inode);
- if (!err) {
- d_instantiate(dentry, inode);
+ if (!(md->body->valid & (OBD_MD_FLGENER | OBD_MD_FLID))) {
+ CERROR("MDS body missing inum or generation\n");
return 0;
}
- ext2_dec_count(inode);
- iput(inode);
- return err;
-}
-/* methods */
-static int ll_find_inode(struct inode *inode, unsigned long ino, void *opaque)
-{
- struct ll_inode_md *md = opaque;
+ if (last_ino == md->body->ino && last_gen == md->body->generation &&
+ last_count < 500) {
+ last_count++;
+ } else {
+ if (last_count > 1)
+ CDEBUG(D_VFSTRACE, "compared %u/%u %u times\n",
+ last_ino, last_gen, last_count);
+ last_count = 0;
+ last_ino = md->body->ino;
+ last_gen = md->body->generation;
+ CDEBUG(D_VFSTRACE,
+ "comparing inode %p ino %lu/%u/%u to body %u/%u/%u\n",
+ inode, inode->i_ino, inode->i_generation,
+ ll_i2info(inode)->lli_mds,
+ md->body->ino, md->body->generation,
+ md->body->mds);
+ }
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+ if (inode->i_ino != md->body->ino)
+ return 0;
+#endif
if (inode->i_generation != md->body->generation)
return 0;
+ if (ll_i2info(inode)->lli_mds != md->body->mds)
+ return 0;
+
+ /* Apply the attributes in 'opaque' to this inode */
+ ll_update_inode(inode, md);
return 1;
}
extern struct dentry_operations ll_d_ops;
-int ll_lock(struct inode *dir, struct dentry *dentry,
- struct lookup_intent *it, struct lustre_handle *lockh)
-{
- struct ll_sb_info *sbi = ll_i2sbi(dir);
- char *tgt = NULL;
- int tgtlen = 0;
- int err, lock_mode;
-
- if ((it->it_op & (IT_CREAT | IT_MKDIR | IT_SETATTR | IT_MKNOD)))
- lock_mode = LCK_PW;
- else if (it->it_op & (IT_READDIR | IT_GETATTR | IT_OPEN | IT_UNLINK |
- IT_RMDIR | IT_RENAME | IT_RENAME2 | IT_READLINK))
- lock_mode = LCK_PR;
- else if (it->it_op & IT_SYMLINK) {
- lock_mode = LCK_PW;
- tgt = it->it_data;
- tgtlen = strlen(tgt);
- it->it_data = NULL;
- } else if (it->it_op & IT_LOOKUP)
- lock_mode = LCK_CR;
- else {
- LBUG();
- RETURN(-EINVAL);
- }
-
- err = mdc_enqueue(&sbi->ll_mdc_conn, LDLM_MDSINTENT, it, lock_mode, dir,
- dentry, lockh, tgt, tgtlen, dir, sizeof(*dir));
-
- RETURN(err);
-}
-
int ll_unlock(__u32 mode, struct lustre_handle *lockh)
{
ENTRY;
RETURN(0);
}
-static struct dentry *ll_lookup2(struct inode *dir, struct dentry *dentry,
- struct lookup_intent *it)
+/* Get an inode by inode number (already instantiated by the intent lookup).
+ * Returns inode or NULL
+ */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
+int ll_set_inode(struct inode *inode, void *opaque)
{
- struct ptlrpc_request *request = NULL;
- struct inode * inode = NULL;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
- struct ll_inode_md md;
- struct lustre_handle lockh;
- struct lookup_intent lookup_it = { IT_LOOKUP };
- int err, offset;
- obd_id ino = 0;
+ ll_read_inode2(inode, opaque);
+ return 0;
+}
- ENTRY;
+struct inode *ll_iget(struct super_block *sb, ino_t hash,
+ struct lustre_md *md)
+{
+ struct inode *inode;
- if (it == NULL) {
- it = &lookup_it;
- dentry->d_it = it;
+ LASSERT(hash != 0);
+ inode = iget5_locked(sb, hash, ll_test_inode, ll_set_inode, md);
+
+ if (inode) {
+ if (inode->i_state & I_NEW)
+ unlock_new_inode(inode);
+ CDEBUG(D_VFSTRACE, "inode: %lu/%u(%p)\n", inode->i_ino,
+ inode->i_generation, inode);
}
- CDEBUG(D_INFO, "name: %*s, intent op: %d\n", dentry->d_name.len,
- dentry->d_name.name, it->it_op);
+ return inode;
+}
+#else
+struct inode *ll_iget(struct super_block *sb, ino_t hash,
+ struct lustre_md *md)
+{
+ struct inode *inode;
+ LASSERT(hash != 0);
+ inode = iget4(sb, hash, ll_test_inode, md);
+ if (inode)
+ CDEBUG(D_VFSTRACE, "inode: %lu/%u(%p)\n", inode->i_ino,
+ inode->i_generation, inode);
+ return inode;
+}
+#endif
- if (dentry->d_name.len > EXT2_NAME_LEN)
- RETURN(ERR_PTR(-ENAMETOOLONG));
+int ll_mdc_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
+ void *data, int flag)
+{
+ int rc;
+ struct lustre_handle lockh;
+ ENTRY;
- err = ll_lock(dir, dentry, it, &lockh);
- if (err < 0)
- RETURN(ERR_PTR(err));
- memcpy(it->it_lock_handle, &lockh, sizeof(lockh));
-
- request = (struct ptlrpc_request *)it->it_data;
- if (it->it_disposition) {
- int mode, easize = 0;
- obd_flag valid;
-
- offset = 1;
- if (it->it_op & (IT_CREAT | IT_MKDIR | IT_SYMLINK | IT_MKNOD)) {
- /* For create ops, we want the lookup to be negative */
- if (!it->it_status)
- GOTO(negative, NULL);
- } else if (it->it_op & (IT_GETATTR | IT_SETATTR | IT_LOOKUP)) {
- /* For check ops, we want the lookup to succeed */
- it->it_data = NULL;
- if (it->it_status)
- GOTO(neg_req, NULL);
- } else if (it->it_op & IT_RENAME) {
- /* For rename, we want the lookup to succeed */
- if (it->it_status) {
- it->it_data = NULL;
- GOTO(neg_req, NULL);
- }
- it->it_data = dentry;
- } else if (it->it_op & (IT_UNLINK | IT_RMDIR)) {
- /* For remove ops, we want the lookup to succeed */
- it->it_data = NULL;
- if (it->it_status)
- GOTO(neg_req, NULL);
- goto iget;
- } else if (it->it_op == IT_OPEN) {
- it->it_data = NULL;
- if (it->it_status && it->it_status != -EEXIST)
- GOTO(neg_req, NULL);
- } else if (it->it_op == IT_RENAME2) {
- struct mds_body *body =
- lustre_msg_buf(request->rq_repmsg, offset);
- it->it_data = NULL;
- /* For rename2, this means the lookup is negative */
- if (body->valid == 0)
- GOTO(neg_req, NULL);
- goto iget; /* XXX not sure about this */
+ switch (flag) {
+ case LDLM_CB_BLOCKING:
+ ldlm_lock2handle(lock, &lockh);
+ rc = ldlm_cli_cancel(&lockh);
+ if (rc < 0) {
+ CDEBUG(D_INODE, "ldlm_cli_cancel: %d\n", rc);
+ RETURN(rc);
}
+ break;
+ case LDLM_CB_CANCELING: {
+ struct inode *inode = ll_inode_from_lock(lock);
+ __u64 bits = lock->l_policy_data.l_inodebits.bits;
- /* Do a getattr now that we have the lock */
- md.body = lustre_msg_buf(request->rq_repmsg, offset);
- ino = md.body->fid1.id;
- mode = md.body->mode;
- valid = OBD_MD_FLNOTOBD | OBD_MD_FLEASIZE;
- if (it->it_op == IT_READLINK) {
- valid |= OBD_MD_LINKNAME;
- easize = md.body->size;
- }
- ptlrpc_free_req(request);
- request = NULL;
- err = mdc_getattr(&sbi->ll_mdc_conn, ino, mode,
- valid, easize, &request);
- if (err) {
- CERROR("failure %d inode %Ld\n", err, (long long)ino);
- ptlrpc_free_req(request);
-#warning FIXME: must release lock here
- RETURN(ERR_PTR(-abs(err)));
+ /* For lookup locks: Invalidate all dentries associated with
+ this inode, for UPDATE locks - invalidate directory pages */
+ if (inode == NULL)
+ break;
+
+ if (bits & MDS_INODELOCK_UPDATE)
+ clear_bit(LLI_F_HAVE_MDS_SIZE_LOCK,
+ &(ll_i2info(inode)->lli_flags));
+
+
+ if (lock->l_resource->lr_name.name[0] != inode->i_ino ||
+ lock->l_resource->lr_name.name[1] != inode->i_generation) {
+ LDLM_ERROR(lock, "data mismatch with ino %lu/%u",
+ inode->i_ino, inode->i_generation);
}
- offset = 0;
- } else {
- struct ll_inode_info *lli = ll_i2info(dir);
- int type;
-
- memcpy(&lli->lli_intent_lock_handle, &lockh, sizeof(lockh));
- offset = 0;
-
- ino = ll_inode_by_name(dir, dentry, &type);
-#warning FIXME: handle negative inode case (see old ll_lookup)
-
- err = mdc_getattr(&sbi->ll_mdc_conn, ino, type,
- OBD_MD_FLNOTOBD|OBD_MD_FLEASIZE, 0, &request);
- if (err) {
- CERROR("failure %d inode %Ld\n", err, (long long)ino);
- ptlrpc_free_req(request);
-#warning FIXME: must release lock here
- RETURN(ERR_PTR(-abs(err)));
+
+ /* If lookup lock is cancelled, we just drop the dentry and
+ this will cause us to reget data from MDS when we'd want to
+ access this dentry/inode again. If this is lock on
+ other parts of inode that is cancelled, we do not need to do
+ much (but need to discard data from readdir, if any), since
+ abscence of lock will cause ll_revalidate_it (called from
+ stat() and similar functions) to renew the data anyway */
+ if (S_ISDIR(inode->i_mode) &&
+ (bits & MDS_INODELOCK_UPDATE)) {
+ CDEBUG(D_INODE, "invalidating inode %lu\n",
+ inode->i_ino);
+
+ truncate_inode_pages(inode->i_mapping, 0);
}
+
+ if (inode->i_sb->s_root &&
+ inode != inode->i_sb->s_root->d_inode &&
+ (bits & MDS_INODELOCK_LOOKUP))
+ ll_unhash_aliases(inode);
+ iput(inode);
+ break;
}
+ default:
+ LBUG();
+ }
+
+ RETURN(0);
+}
+
+int ll_mdc_cancel_unused(struct lustre_handle *conn, struct inode *inode,
+ int flags, void *opaque)
+{
+ struct ldlm_res_id res_id =
+ { .name = {inode->i_ino, inode->i_generation} };
+ struct obd_device *obddev = class_conn2obd(conn);
+ ENTRY;
+
+ RETURN(ldlm_cli_cancel_unused(obddev->obd_namespace, &res_id, flags,
+ opaque));
+}
+
+/* Search "inode"'s alias list for a dentry that has the same name and parent as
+ * de. If found, return it. If not found, return de. */
+struct dentry *ll_find_alias(struct inode *inode, struct dentry *de)
+{
+ struct list_head *tmp;
+
+ spin_lock(&dcache_lock);
+ list_for_each(tmp, &inode->i_dentry) {
+ struct dentry *dentry = list_entry(tmp, struct dentry, d_alias);
+
+ /* We are called here with 'de' already on the aliases list. */
+ if (dentry == de) {
+ CERROR("whoops\n");
+ continue;
+ }
+
+ if (dentry->d_parent != de->d_parent)
+ continue;
+
+ if (dentry->d_name.len != de->d_name.len)
+ continue;
+
+ if (memcmp(dentry->d_name.name, de->d_name.name,
+ de->d_name.len) != 0)
+ continue;
- iget:
- md.body = lustre_msg_buf(request->rq_repmsg, offset);
- if (S_ISREG(md.body->mode)) {
- if (request->rq_repmsg->bufcount < offset + 1)
- LBUG();
- md.md = lustre_msg_buf(request->rq_repmsg, offset + 1);
- } else
- md.md = NULL;
-
- /* No rpc's happen during iget4, -ENOMEM's are possible */
- inode = iget4(dir->i_sb, ino, ll_find_inode, &md);
-
- LASSERT(!IS_ERR(inode));
- if (!inode) {
- ptlrpc_free_req(request);
- ll_intent_release(dentry);
- RETURN(ERR_PTR(-ENOMEM));
+ if (!list_empty(&dentry->d_lru))
+ list_del_init(&dentry->d_lru);
+
+ hlist_del_init(&dentry->d_hash);
+ __d_rehash(dentry, 0); /* avoid taking dcache_lock inside */
+ spin_unlock(&dcache_lock);
+ atomic_inc(&dentry->d_count);
+ iput(inode);
+ dentry->d_flags &= ~DCACHE_LUSTRE_INVALID;
+ CDEBUG(D_DENTRY, "alias dentry %*s (%p) parent %p inode %p "
+ "refc %d\n", de->d_name.len, de->d_name.name, de,
+ de->d_parent, de->d_inode, atomic_read(&de->d_count));
+ return dentry;
}
- EXIT;
- neg_req:
- ptlrpc_req_finished(request);
- negative:
- dentry->d_op = &ll_d_ops;
- d_add(dentry, inode);
- if (it->it_op == IT_LOOKUP)
- ll_intent_release(dentry);
+ spin_unlock(&dcache_lock);
- return NULL;
+ return de;
}
-static struct inode *ll_create_node(struct inode *dir, const char *name,
- int namelen, const char *tgt, int tgtlen,
- int mode, __u64 extra,
- struct lookup_intent *it,
- struct lov_stripe_md *smd)
+static int lookup_it_finish(struct ptlrpc_request *request, int offset,
+ struct lookup_intent *it, void *data)
{
- struct inode *inode;
- struct ptlrpc_request *request = NULL;
- struct mds_body *body;
+ struct it_cb_data *icbd = data;
+ struct dentry **de = icbd->icbd_childp;
+ struct inode *parent = icbd->icbd_parent;
+ struct ll_sb_info *sbi = ll_i2sbi(parent);
+ struct dentry *dentry = *de, *saved = *de;
+ struct inode *inode = NULL;
int rc;
- time_t time = CURRENT_TIME;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
- int gid = current->fsgid;
- struct ll_inode_md md;
- struct lov_mds_md *mds_md = NULL;
- int mds_md_size = 0;
- ENTRY;
+ /* NB 1 request reference will be taken away by ll_intent_lock()
+ * when I return */
+ if (!it_disposition(it, DISP_LOOKUP_NEG)) {
+ ENTRY;
- if (dir->i_mode & S_ISGID) {
- gid = dir->i_gid;
- if (S_ISDIR(mode))
- mode |= S_ISGID;
- }
+ rc = ll_prep_inode(sbi->ll_osc_exp, sbi->ll_mdc_exp,
+ &inode, request, offset, dentry->d_sb);
+ if (rc)
+ RETURN(rc);
- if (!it || !it->it_disposition) {
- rc = mdc_create(&sbi->ll_mdc_conn, dir, name, namelen, tgt,
- tgtlen, mode, current->fsuid,
- gid, time, extra, smd, &request);
- if (rc) {
- inode = ERR_PTR(rc);
- GOTO(out, rc);
- }
- body = lustre_msg_buf(request->rq_repmsg, 0);
- if (smd != NULL) {
- mds_md_size = sizeof (struct lov_mds_md) +
- smd->lmd_stripe_count * sizeof(struct lov_object_id);
- OBD_ALLOC(mds_md, mds_md_size);
- lov_packmd(mds_md, smd);
- md.md = mds_md;
- } else
- md.md = NULL;
+ CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u)\n",
+ inode, inode->i_ino, inode->i_generation);
+ mdc_set_lock_data(NULL, &it->d.lustre.it_lock_handle, inode);
- } else {
- request = it->it_data;
- body = lustre_msg_buf(request->rq_repmsg, 1);
- md.md = NULL;
- }
+ /* If this is a stat, get the authoritative file size */
+ if (it->it_op == IT_GETATTR && S_ISREG(inode->i_mode) &&
+ ll_i2info(inode)->lli_smd != NULL) {
+ struct lov_stripe_md *lsm = ll_i2info(inode)->lli_smd;
+ struct ost_lvb lvb;
+ ldlm_error_t rc;
- body->valid = OBD_MD_FLNOTOBD;
+ LASSERT(lsm->lsm_object_id != 0);
- body->nlink = 1;
- body->atime = body->ctime = body->mtime = time;
- body->uid = current->fsuid;
- body->gid = gid;
- body->mode = mode;
+ /* bug 2334: drop MDS lock before acquiring OST lock */
+ ll_intent_drop_lock(it);
- md.body = body;
+ rc = ll_glimpse_size(inode, &lvb);
+ if (rc) {
+ iput(inode);
+ RETURN(rc);
+ }
+ inode->i_size = lvb.lvb_size;
+ }
- inode = iget4(dir->i_sb, body->ino, ll_find_inode, &md);
- if (IS_ERR(inode)) {
- rc = PTR_ERR(inode);
- CERROR("new_inode -fatal: rc %d\n", rc);
- LBUG();
- GOTO(out, rc);
+ dentry = *de = ll_find_alias(inode, dentry);
+ } else {
+ ENTRY;
}
- if (!list_empty(&inode->i_dentry)) {
- CERROR("new_inode -fatal: inode %d, ct %d lnk %d\n",
- body->ino, atomic_read(&inode->i_count),
- inode->i_nlink);
- iput(inode);
- LBUG();
- inode = ERR_PTR(-EIO);
- GOTO(out, -EIO);
+ dentry->d_op = &ll_d_ops;
+ ll_set_dd(dentry);
+
+ if (dentry == saved) {
+ d_add(dentry, inode);
}
- EXIT;
- out:
- if (mds_md != NULL)
- OBD_FREE(mds_md, mds_md_size);
- ptlrpc_free_req(request);
- return inode;
+ RETURN(0);
}
-static int ll_mdc_unlink(struct inode *dir, struct inode *child, __u32 mode,
- const char *name, int len)
-{
- struct ptlrpc_request *request = NULL;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
- int err;
+static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
+ struct nameidata *nd,
+ struct lookup_intent *it, int flags)
+{
+ struct dentry *save = dentry, *retval;
+ struct ll_fid pfid;
+ struct ll_uctxt ctxt;
+ struct it_cb_data icbd;
+ struct ptlrpc_request *req = NULL;
+ struct lookup_intent lookup_it = { .it_op = IT_LOOKUP };
+ int rc;
ENTRY;
- err = mdc_unlink(&sbi->ll_mdc_conn, dir, child, mode, name, len,
- &request);
- ptlrpc_free_req(request);
+ if (dentry->d_name.len > EXT3_NAME_LEN)
+ RETURN(ERR_PTR(-ENAMETOOLONG));
- RETURN(err);
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%s,dir=%lu/%u(%p),intent=%s\n",
+ dentry->d_name.name, parent->i_ino, parent->i_generation,
+ parent, LL_IT2STR(it));
+
+ if (d_mountpoint(dentry))
+ CERROR("Tell Peter, lookup on mtpt, it %s\n", LL_IT2STR(it));
+
+ if (nd != NULL)
+ nd->mnt->mnt_last_used = jiffies;
+
+ ll_frob_intent(&it, &lookup_it);
+
+ icbd.icbd_childp = &dentry;
+ icbd.icbd_parent = parent;
+ ll_inode2fid(&pfid, parent);
+ ll_i2uctxt(&ctxt, parent, NULL);
+
+ rc = md_intent_lock(ll_i2mdcexp(parent), &ctxt, &pfid,
+ dentry->d_name.name, dentry->d_name.len, NULL, 0,
+ NULL, it, flags, &req, ll_mdc_blocking_ast);
+ if (rc < 0)
+ GOTO(out, retval = ERR_PTR(rc));
+
+ rc = lookup_it_finish(req, 1, it, &icbd);
+ if (rc != 0) {
+ ll_intent_release(it);
+ GOTO(out, retval = ERR_PTR(rc));
+ }
+
+ ll_lookup_finish_locks(it, dentry);
+
+ if (nd &&
+ dentry->d_inode != NULL && dentry->d_inode->i_mode & S_ISUID &&
+ S_ISDIR(dentry->d_inode->i_mode) &&
+ (flags & LOOKUP_CONTINUE || (it->it_op & (IT_CHDIR | IT_OPEN))))
+ ll_dir_process_mount_object(dentry, nd->mnt);
+
+ if (dentry == save)
+ GOTO(out, retval = NULL);
+ else
+ GOTO(out, retval = dentry);
+ out:
+ if (req)
+ ptlrpc_req_finished(req);
+ if (dentry->d_inode)
+ CDEBUG(D_INODE, "lookup 0x%p in %lu/%lu: %*s -> %lu/%lu\n",
+ dentry,
+ (unsigned long) parent->i_ino,
+ (unsigned long) parent->i_generation,
+ dentry->d_name.len, dentry->d_name.name,
+ (unsigned long) dentry->d_inode->i_ino,
+ (unsigned long) dentry->d_inode->i_generation);
+ else
+ CDEBUG(D_INODE, "lookup 0x%p in %lu/%lu: %*s -> ??\n",
+ dentry,
+ (unsigned long) parent->i_ino,
+ (unsigned long) parent->i_generation,
+ dentry->d_name.len, dentry->d_name.name);
+ return retval;
}
-int ll_mdc_link(struct dentry *src, struct inode *dir,
- const char *name, int len)
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
+ struct nameidata *nd)
{
- struct ptlrpc_request *request = NULL;
- int err;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
-
+ struct dentry *de;
ENTRY;
- err = mdc_link(&sbi->ll_mdc_conn, src, dir, name,
- len, &request);
- ptlrpc_free_req(request);
+ if (nd && nd->flags & LOOKUP_LAST && !(nd->flags & LOOKUP_LINK_NOTLAST))
+ de = ll_lookup_it(parent, dentry, nd, &nd->intent, nd->flags);
+ else
+ de = ll_lookup_it(parent, dentry, nd, NULL, 0);
- RETURN(err);
+ RETURN(de);
}
+#endif
-int ll_mdc_rename(struct inode *src, struct inode *tgt,
- struct dentry *old, struct dentry *new)
+/* We depend on "mode" being set with the proper file type/umask by now */
+static struct inode *ll_create_node(struct inode *dir, const char *name,
+ int namelen, const void *data, int datalen,
+ int mode, __u64 extra,
+ struct lookup_intent *it)
{
+ struct inode *inode = NULL;
struct ptlrpc_request *request = NULL;
- struct ll_sb_info *sbi = ll_i2sbi(src);
- int err;
-
+ struct ll_sb_info *sbi = ll_i2sbi(dir);
+ int rc;
ENTRY;
- err = mdc_rename(&sbi->ll_mdc_conn, src, tgt,
- old->d_name.name, old->d_name.len,
- new->d_name.name, new->d_name.len, &request);
- ptlrpc_free_req(request);
+ LASSERT(it && it->d.lustre.it_disposition);
- RETURN(err);
+ request = it->d.lustre.it_data;
+ rc = ll_prep_inode(sbi->ll_osc_exp, sbi->ll_mdc_exp,
+ &inode, request, 1, dir->i_sb);
+ if (rc)
+ GOTO(out, inode = ERR_PTR(rc));
+
+ LASSERT(list_empty(&inode->i_dentry));
+
+ /* We asked for a lock on the directory, but were granted a
+ * lock on the inode. Since we finally have an inode pointer,
+ * stuff it in the lock. */
+ CDEBUG(D_DLMTRACE, "setting l_ast_data to inode %p (%lu/%u)\n",
+ inode, inode->i_ino, inode->i_generation);
+ mdc_set_lock_data(NULL, &it->d.lustre.it_lock_handle, inode);
+ EXIT;
+ out:
+ ptlrpc_req_finished(request);
+ return inode;
}
/*
- * By the time this is called, we already have created
- * the directory cache entry for the new file, but it
- * is so far negative - it has no inode.
+ * By the time this is called, we already have created the directory cache
+ * entry for the new file, but it is so far negative - it has no inode.
+ *
+ * We defer creating the OBD object(s) until open, to keep the intent and
+ * non-intent code paths similar, and also because we do not have the MDS
+ * inode number before calling ll_create_node() (which is needed for LOV),
+ * so we would need to do yet another RPC to the MDS to store the LOV EA
+ * data on the MDS. If needed, we would pass the PACKED lmm as data and
+ * lmm_size in datalen (the MDS still has code which will handle that).
*
* If the create succeeds, we fill in the inode information
* with d_instantiate().
*/
-
-static int ll_create(struct inode * dir, struct dentry * dentry, int mode)
+static int ll_create_it(struct inode *dir, struct dentry *dentry, int mode,
+ struct lookup_intent *it)
{
- int err, rc = 0;
- struct obdo oa;
struct inode *inode;
- struct lov_stripe_md *smd = NULL;
- struct ll_inode_info *lli = NULL;
+ struct ptlrpc_request *request = it->d.lustre.it_data;
+ struct obd_export *mdc_exp = ll_i2mdcexp(dir);
+ int rc = 0;
ENTRY;
- if (dentry->d_it->it_disposition == 0) {
- memset(&oa, 0, sizeof(oa));
- oa.o_valid = OBD_MD_FLMODE;
- oa.o_mode = S_IFREG | 0600;
- rc = obd_create(ll_i2obdconn(dir), &oa, &smd);
- CDEBUG(D_DENTRY, "name %s mode %o o_id %lld: rc = %d\n",
- dentry->d_name.name, mode, (long long)oa.o_id, rc);
- if (rc)
- RETURN(rc);
- }
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%s,dir=%lu/%u(%p),intent=%s\n",
+ dentry->d_name.name, dir->i_ino, dir->i_generation, dir,
+ LL_IT2STR(it));
- inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
- NULL, 0, mode, 0, dentry->d_it, smd);
+ rc = it_open_error(DISP_OPEN_CREATE, it);
+ if (rc)
+ RETURN(rc);
+ mdc_store_inode_generation(mdc_exp, request, 2, 1);
+ inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
+ NULL, 0, mode, 0, it);
if (IS_ERR(inode)) {
- rc = PTR_ERR(inode);
- CERROR("error creating MDS object for id %Ld: rc = %d\n",
- (unsigned long long)oa.o_id, rc);
- GOTO(out_destroy, rc);
- }
-
- if (dentry->d_it->it_disposition) {
- lli = ll_i2info(inode);
- memcpy(&lli->lli_intent_lock_handle,
- dentry->d_it->it_lock_handle,
- sizeof(struct lustre_handle));
- d_instantiate(dentry, inode);
- } else {
- /* no directory data updates when intents rule */
- rc = ext2_add_nondir(dentry, inode);
- }
-
- RETURN(rc);
-
-out_destroy:
- if (smd) {
- oa.o_easize = smd->lmd_easize;
- oa.o_valid |= OBD_MD_FLEASIZE;
- err = obd_destroy(ll_i2obdconn(dir), &oa, smd);
- if (err)
- CERROR("error destroying objid %Ld on error: err %d\n",
- (unsigned long long)oa.o_id, err);
+ RETURN(PTR_ERR(inode));
}
- return rc;
+ d_instantiate(dentry, inode);
+ RETURN(0);
}
-static int ll_mknod(struct inode *dir, struct dentry *dentry, int mode,
- int rdev)
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+static int ll_create_nd(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd)
{
- struct inode *inode;
- int err = 0;
-
- inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
- NULL, 0, mode, rdev, dentry->d_it, NULL);
-
- if (IS_ERR(inode))
- RETURN(PTR_ERR(inode));
-
- /* no directory data updates when intents rule */
- if (dentry->d_it && dentry->d_it->it_disposition)
- d_instantiate(dentry, inode);
- else
- err = ext2_add_nondir(dentry, inode);
-
- return err;
+ return ll_create_it(dir, dentry, mode, &nd->intent);
}
+#endif
-static int ll_symlink(struct inode *dir, struct dentry *dentry,
- const char *symname)
+static int ll_mknod_raw(struct nameidata *nd, int mode, dev_t rdev)
{
- unsigned l = strlen(symname);
- struct inode *inode;
- struct ll_inode_info *lli;
- int err = 0;
+ struct ptlrpc_request *request = NULL;
+ struct inode *dir = nd->dentry->d_inode;
+ const char *name = nd->last.name;
+ int len = nd->last.len;
+ struct ll_sb_info *sbi = ll_i2sbi(dir);
+ struct mdc_op_data op_data;
+ int err = -EMLINK;
ENTRY;
- inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
- symname, l, S_IFLNK | S_IRWXUGO, 0,
- dentry->d_it, NULL);
- if (IS_ERR(inode))
- RETURN(PTR_ERR(inode));
-
- lli = ll_i2info(inode);
-
- OBD_ALLOC(lli->lli_symlink_name, l + 1);
- /* this _could_ be a non-fatal error, since the symlink is already
- * stored on the MDS by this point, and we can re-get it in readlink.
- */
- if (!lli->lli_symlink_name)
- RETURN(-ENOMEM);
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%s,dir=%lu/%u(%p)\n",
+ name, dir->i_ino, dir->i_generation, dir);
- memcpy(lli->lli_symlink_name, symname, l + 1);
- inode->i_size = l;
-
- /* no directory data updates when intents rule */
- if (dentry->d_it && dentry->d_it->it_disposition)
- d_instantiate(dentry, inode);
- else
- err = ext2_add_nondir(dentry, inode);
+ if (dir->i_nlink >= EXT3_LINK_MAX)
+ RETURN(err);
+ mode &= ~current->fs->umask;
+
+ switch (mode & S_IFMT) {
+ case 0:
+ case S_IFREG:
+ mode |= S_IFREG; /* for mode = 0 case, fallthrough */
+ case S_IFCHR:
+ case S_IFBLK:
+ case S_IFIFO:
+ case S_IFSOCK:
+ ll_prepare_mdc_op_data(&op_data, dir, NULL, name, len, 0);
+ err = md_create(sbi->ll_mdc_exp, &op_data, NULL, 0, mode,
+ current->fsuid, current->fsgid, rdev, &request);
+ ptlrpc_req_finished(request);
+ break;
+ case S_IFDIR:
+ err = -EPERM;
+ break;
+ default:
+ err = -EINVAL;
+ }
RETURN(err);
}
-static int ll_link(struct dentry *old_dentry, struct inode * dir,
- struct dentry *dentry)
+static int ll_mknod(struct inode *dir, struct dentry *child, int mode,
+ ll_dev_t rdev)
{
- int err;
- struct inode *inode = old_dentry->d_inode;
-
-#warning FIXME: still needs intent support
- if (S_ISDIR(inode->i_mode))
- return -EPERM;
+ struct ptlrpc_request *request = NULL;
+ struct inode *inode = NULL;
+ const char *name = child->d_name.name;
+ int len = child->d_name.len;
+ struct ll_sb_info *sbi = ll_i2sbi(dir);
+ struct mdc_op_data op_data;
+ int err = -EMLINK;
+ ENTRY;
- if (inode->i_nlink >= EXT2_LINK_MAX)
- return -EMLINK;
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%s,dir=%lu/%u(%p)\n",
+ name, dir->i_ino, dir->i_generation, dir);
- err = ll_mdc_link(old_dentry, dir,
- dentry->d_name.name, dentry->d_name.len);
- if (err)
+ if (dir->i_nlink >= EXT3_LINK_MAX)
RETURN(err);
- inode->i_ctime = CURRENT_TIME;
- ext2_inc_count(inode);
- atomic_inc(&inode->i_count);
+ mode &= ~current->fs->umask;
+
+ switch (mode & S_IFMT) {
+ case 0:
+ case S_IFREG:
+ mode |= S_IFREG; /* for mode = 0 case, fallthrough */
+ case S_IFCHR:
+ case S_IFBLK:
+ case S_IFIFO:
+ case S_IFSOCK:
+ ll_prepare_mdc_op_data(&op_data, dir, NULL, name, len, 0);
+ err = md_create(sbi->ll_mdc_exp, &op_data, NULL, 0, mode,
+ current->fsuid, current->fsgid, rdev, &request);
+ err = ll_prep_inode(sbi->ll_osc_exp, sbi->ll_mdc_exp,
+ &inode, request, 0, child->d_sb);
+ if (err)
+ GOTO(out_err, err);
+ break;
+ case S_IFDIR:
+ RETURN(-EPERM);
+ break;
+ default:
+ RETURN(-EINVAL);
+ }
- return ext2_add_nondir(dentry, inode);
+ d_instantiate(child, inode);
+ out_err:
+ ptlrpc_req_finished(request);
+ RETURN(err);
}
-static int ll_mkdir(struct inode * dir, struct dentry * dentry, int mode)
+static int ll_symlink_raw(struct nameidata *nd, const char *tgt)
{
- struct inode * inode;
+ struct inode *dir = nd->dentry->d_inode;
+ const char *name = nd->last.name;
+ int len = nd->last.len;
+ struct ptlrpc_request *request = NULL;
+ struct ll_sb_info *sbi = ll_i2sbi(dir);
+ struct mdc_op_data op_data;
int err = -EMLINK;
ENTRY;
- if (dir->i_nlink >= EXT2_LINK_MAX)
- goto out;
-
- ext2_inc_count(dir);
-
- inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
- NULL, 0, S_IFDIR | mode, 0, dentry->d_it, NULL);
- err = PTR_ERR(inode);
- if (IS_ERR(inode))
- goto out_dir;
-
- ext2_inc_count(inode);
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%s,dir=%lu/%u(%p),target=%s\n",
+ name, dir->i_ino, dir->i_generation, dir, tgt);
- err = ext2_make_empty(inode, dir);
- if (err)
- goto out_fail;
-
- /* no directory data updates when intents rule */
- if (dentry->d_it->it_disposition == 0) {
- err = ll_add_link(dentry, inode);
- if (err)
- goto out_fail;
- }
-
- d_instantiate(dentry, inode);
-out:
- EXIT;
- return err;
+ if (dir->i_nlink >= EXT3_LINK_MAX)
+ RETURN(err);
-out_fail:
- ext2_dec_count(inode);
- ext2_dec_count(inode);
- iput(inode);
- EXIT;
-out_dir:
- ext2_dec_count(dir);
- EXIT;
- goto out;
+ ll_prepare_mdc_op_data(&op_data, dir, NULL, name, len, 0);
+ err = md_create(sbi->ll_mdc_exp, &op_data,
+ tgt, strlen(tgt) + 1, S_IFLNK | S_IRWXUGO,
+ current->fsuid, current->fsgid, 0, &request);
+ ptlrpc_req_finished(request);
+ RETURN(err);
}
-static int ll_common_unlink(struct inode *dir, struct dentry *dentry,
- __u32 mode)
+static int ll_link_raw(struct nameidata *srcnd, struct nameidata *tgtnd)
{
- struct inode * inode = dentry->d_inode;
- struct ext2_dir_entry_2 * de;
- struct page * page;
- int err = -ENOENT;
-
- if (dentry->d_it && dentry->d_it->it_disposition) {
- err = dentry->d_it->it_status;
- GOTO(out, err);
- }
-
- de = ext2_find_entry(dir, dentry, &page);
- if (!de)
- goto out;
+ struct inode *src = srcnd->dentry->d_inode;
+ struct inode *dir = tgtnd->dentry->d_inode;
+ const char *name = tgtnd->last.name;
+ int len = tgtnd->last.len;
+ struct ptlrpc_request *request = NULL;
+ struct mdc_op_data op_data;
+ int err;
+ struct ll_sb_info *sbi = ll_i2sbi(dir);
- err = ll_mdc_unlink(dir, dentry->d_inode, mode,
- dentry->d_name.name, dentry->d_name.len);
- if (err)
- goto out;
+ ENTRY;
+ CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p),dir=%lu/%u(%p),target=%s\n",
+ src->i_ino, src->i_generation, src,
+ dir->i_ino, dir->i_generation, dir, name);
- err = ext2_delete_entry(de, page);
- if (err)
- goto out;
+ ll_prepare_mdc_op_data(&op_data, src, dir, name, len, 0);
+ err = md_link(sbi->ll_mdc_exp, &op_data, &request);
+ ptlrpc_req_finished(request);
- inode->i_ctime = dir->i_ctime;
-out:
- ext2_dec_count(inode);
- return err;
+ RETURN(err);
}
-static int ll_unlink(struct inode *dir, struct dentry *dentry)
+
+static int ll_mkdir_raw(struct nameidata *nd, int mode)
{
- return ll_common_unlink(dir, dentry, S_IFREG);
+ struct inode *dir = nd->dentry->d_inode;
+ const char *name = nd->last.name;
+ int len = nd->last.len;
+ struct ptlrpc_request *request = NULL;
+ struct ll_sb_info *sbi = ll_i2sbi(dir);
+ struct mdc_op_data op_data;
+ int err = -EMLINK;
+ ENTRY;
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%s,dir=%lu/%u(%p)\n",
+ name, dir->i_ino, dir->i_generation, dir);
+
+ mode = (mode & (S_IRWXUGO|S_ISVTX) & ~current->fs->umask) | S_IFDIR;
+ ll_prepare_mdc_op_data(&op_data, dir, NULL, name, len, 0);
+ err = md_create(sbi->ll_mdc_exp, &op_data, NULL, 0, mode,
+ current->fsuid, current->fsgid, 0, &request);
+ ptlrpc_req_finished(request);
+ RETURN(err);
}
-static int ll_rmdir(struct inode *dir, struct dentry *dentry)
+static int ll_rmdir_raw(struct nameidata *nd)
{
- struct inode * inode = dentry->d_inode;
- int err = 0;
+ struct inode *dir = nd->dentry->d_inode;
+ const char *name = nd->last.name;
+ int len = nd->last.len;
+ struct ptlrpc_request *request = NULL;
+ struct mdc_op_data op_data;
+ int rc;
ENTRY;
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%s,dir=%lu/%u(%p)\n",
+ name, dir->i_ino, dir->i_generation, dir);
- if (!dentry->d_it || dentry->d_it->it_disposition == 0) {
- if (!ext2_empty_dir(inode))
- LBUG();
-
- err = ll_common_unlink(dir, dentry, S_IFDIR);
- } else
- err = dentry->d_it->it_status;
- if (err)
- RETURN(err);
- inode->i_size = 0;
- ext2_dec_count(inode);
- ext2_dec_count(dir);
- RETURN(err);
+ ll_prepare_mdc_op_data(&op_data, dir, NULL, name, len, S_IFDIR);
+ rc = md_unlink(ll_i2sbi(dir)->ll_mdc_exp, &op_data, &request);
+ ptlrpc_req_finished(request);
+ RETURN(rc);
}
-static int ll_rename(struct inode * old_dir, struct dentry * old_dentry,
- struct inode * new_dir, struct dentry * new_dentry)
+int ll_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
{
- struct inode * old_inode = old_dentry->d_inode;
- struct inode * new_inode = new_dentry->d_inode;
- struct page * dir_page = NULL;
- struct ext2_dir_entry_2 * dir_de = NULL;
- struct ext2_dir_entry_2 * old_de;
- struct page * old_page;
- int err = -ENOENT;
-
- if (new_dentry->d_it && new_dentry->d_it->it_disposition) {
- if (new_inode) {
- new_inode->i_ctime = CURRENT_TIME;
- new_inode->i_nlink--;
- }
- GOTO(out, err = new_dentry->d_it->it_status);
- }
+ struct mds_body *body;
+ struct lov_mds_md *eadata;
+ struct lov_stripe_md *lsm = NULL;
+ struct obd_trans_info oti = { 0 };
+ struct obdo *oa;
+ int rc;
+ ENTRY;
- err = ll_mdc_rename(old_dir, new_dir, old_dentry, new_dentry);
- if (err)
- goto out;
+ /* req is swabbed so this is safe */
+ body = lustre_msg_buf(request->rq_repmsg, 0, sizeof(*body));
- old_de = ext2_find_entry (old_dir, old_dentry, &old_page);
- if (!old_de)
- goto out;
+ if (!(body->valid & OBD_MD_FLEASIZE))
+ RETURN(0);
- if (S_ISDIR(old_inode->i_mode)) {
- err = -EIO;
- dir_de = ext2_dotdot(old_inode, &dir_page);
- if (!dir_de)
- goto out_old;
+ if (body->eadatasize == 0) {
+ CERROR("OBD_MD_FLEASIZE set but eadatasize zero\n");
+ GOTO(out, rc = -EPROTO);
}
- if (new_inode) {
- struct page *new_page;
- struct ext2_dir_entry_2 *new_de;
-
- err = -ENOTEMPTY;
- if (dir_de && !ext2_empty_dir (new_inode))
- goto out_dir;
-
- err = -ENOENT;
- new_de = ext2_find_entry (new_dir, new_dentry, &new_page);
- if (!new_de)
- goto out_dir;
- ext2_inc_count(old_inode);
- ext2_set_link(new_dir, new_de, new_page, old_inode);
- new_inode->i_ctime = CURRENT_TIME;
- if (dir_de)
- new_inode->i_nlink--;
- ext2_dec_count(new_inode);
- } else {
- if (dir_de) {
- err = -EMLINK;
- if (new_dir->i_nlink >= EXT2_LINK_MAX)
- goto out_dir;
- }
- ext2_inc_count(old_inode);
- err = ll_add_link(new_dentry, old_inode);
- if (err) {
- ext2_dec_count(old_inode);
- goto out_dir;
+ /* The MDS sent back the EA because we unlinked the last reference
+ * to this file. Use this EA to unlink the objects on the OST.
+ * It's opaque so we don't swab here; we leave it to obd_unpackmd() to
+ * check it is complete and sensible. */
+ eadata = lustre_swab_repbuf(request, 1, body->eadatasize, NULL);
+ LASSERT(eadata != NULL);
+ if (eadata == NULL) {
+ CERROR("Can't unpack MDS EA data\n");
+ GOTO(out, rc = -EPROTO);
+ }
+
+ rc = obd_unpackmd(ll_i2obdexp(dir), &lsm, eadata, body->eadatasize);
+ if (rc < 0) {
+ CERROR("obd_unpackmd: %d\n", rc);
+ GOTO(out, rc);
+ }
+ LASSERT(rc >= sizeof(*lsm));
+
+ oa = obdo_alloc();
+ if (oa == NULL)
+ GOTO(out_free_memmd, rc = -ENOMEM);
+
+ oa->o_id = lsm->lsm_object_id;
+ oa->o_gr = lsm->lsm_object_gr;
+ oa->o_mode = body->mode & S_IFMT;
+ oa->o_valid = OBD_MD_FLID | OBD_MD_FLTYPE | OBD_MD_FLGROUP;
+
+ if (body->valid & OBD_MD_FLCOOKIE) {
+ oa->o_valid |= OBD_MD_FLCOOKIE;
+ oti.oti_logcookies =
+ lustre_msg_buf(request->rq_repmsg, 2,
+ sizeof(struct llog_cookie) *
+ lsm->lsm_stripe_count);
+ if (oti.oti_logcookies == NULL) {
+ oa->o_valid &= ~OBD_MD_FLCOOKIE;
+ body->valid &= ~OBD_MD_FLCOOKIE;
}
- if (dir_de)
- ext2_inc_count(new_dir);
}
- ext2_delete_entry (old_de, old_page);
- ext2_dec_count(old_inode);
+ rc = obd_destroy(ll_i2obdexp(dir), oa, lsm, &oti);
+ obdo_free(oa);
+ if (rc)
+ CERROR("obd destroy objid "LPX64" error %d\n",
+ lsm->lsm_object_id, rc);
+ out_free_memmd:
+ obd_free_memmd(ll_i2obdexp(dir), &lsm);
+ out:
+ return rc;
+}
- if (dir_de) {
- ext2_set_link(old_inode, dir_de, dir_page, new_dir);
- ext2_dec_count(old_dir);
- }
- return 0;
+static int ll_unlink_raw(struct nameidata *nd)
+{
+ struct inode *dir = nd->dentry->d_inode;
+ const char *name = nd->last.name;
+ int len = nd->last.len;
+ struct ptlrpc_request *request = NULL;
+ struct mdc_op_data op_data;
+ int rc;
+ ENTRY;
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%s,dir=%lu/%u(%p)\n",
+ name, dir->i_ino, dir->i_generation, dir);
+
+ ll_prepare_mdc_op_data(&op_data, dir, NULL, name, len, 0);
+ rc = md_unlink(ll_i2sbi(dir)->ll_mdc_exp, &op_data, &request);
+ if (rc)
+ GOTO(out, rc);
-out_dir:
- if (dir_de) {
- kunmap(dir_page);
- page_cache_release(dir_page);
+ rc = ll_objects_destroy(request, dir);
+ out:
+ ptlrpc_req_finished(request);
+ RETURN(rc);
+}
+
+static int ll_rename_raw(struct nameidata *oldnd, struct nameidata *newnd)
+{
+ struct inode *src = oldnd->dentry->d_inode;
+ struct inode *tgt = newnd->dentry->d_inode;
+ const char *oldname = oldnd->last.name;
+ int oldlen = oldnd->last.len;
+ const char *newname = newnd->last.name;
+ int newlen = newnd->last.len;
+ struct ptlrpc_request *request = NULL;
+ struct ll_sb_info *sbi = ll_i2sbi(src);
+ struct mdc_op_data op_data;
+ int err;
+ ENTRY;
+ CDEBUG(D_VFSTRACE, "VFS Op:oldname=%s,src_dir=%lu/%u(%p),newname=%s,"
+ "tgt_dir=%lu/%u(%p)\n", oldname, src->i_ino, src->i_generation,
+ src, newname, tgt->i_ino, tgt->i_generation, tgt);
+
+ ll_prepare_mdc_op_data(&op_data, src, tgt, NULL, 0, 0);
+ err = md_rename(sbi->ll_mdc_exp, &op_data,
+ oldname, oldlen, newname, newlen, &request);
+ if (!err) {
+ err = ll_objects_destroy(request, src);
}
-out_old:
- kunmap(old_page);
- page_cache_release(old_page);
-out:
- return err;
+
+ ptlrpc_req_finished(request);
+
+ RETURN(err);
}
struct inode_operations ll_dir_inode_operations = {
- create: ll_create,
- lookup2: ll_lookup2,
- link: ll_link,
- unlink: ll_unlink,
- symlink: ll_symlink,
- mkdir: ll_mkdir,
- rmdir: ll_rmdir,
- mknod: ll_mknod,
- rename: ll_rename,
- setattr: ll_setattr
+ .link_raw = ll_link_raw,
+ .unlink_raw = ll_unlink_raw,
+ .symlink_raw = ll_symlink_raw,
+ .mkdir_raw = ll_mkdir_raw,
+ .rmdir_raw = ll_rmdir_raw,
+ .mknod_raw = ll_mknod_raw,
+ .mknod = ll_mknod,
+ .rename_raw = ll_rename_raw,
+ .setattr = ll_setattr,
+ .setattr_raw = ll_setattr_raw,
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
+ .create_it = ll_create_it,
+ .lookup_it = ll_lookup_it,
+ .revalidate_it = ll_inode_revalidate_it,
+#else
+ .lookup = ll_lookup_nd,
+ .create = ll_create_nd,
+ .getattr_it = ll_getattr,
+#endif
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff