-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
- *
- * Copyright (c) 2002, 2003 Cluster File Systems, Inc.
+/*
+ * GPL HEADER START
*
- * This file is part of Lustre, http://www.lustre.org.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * 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.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * 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.
+ * This program 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 version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * 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.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * derived in small part from linux/fs/ext2/namei.c
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
*
- * Copyright (C) 1991, 1992 Linus Torvalds
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
*
- * Big-endian to little-endian byte-swapping/bitmaps by
- * 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
+ * Copyright (c) 2011, 2013, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#include <linux/fs.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>
+#include <linux/security.h>
#define DEBUG_SUBSYSTEM S_LLITE
-#include <linux/obd_support.h>
-#include <linux/lustre_lite.h>
-#include <linux/lustre_dlm.h>
-#include <linux/lustre_version.h>
+#include <obd_support.h>
+#include <lustre_fid.h>
+#include <lustre_lite.h>
+#include <lustre_dlm.h>
+#include <lustre_ver.h>
#include "llite_internal.h"
-/* methods */
+static int ll_create_it(struct inode *, struct dentry *,
+ int, struct lookup_intent *);
+
+/*
+ * Check if we have something mounted at the named dchild.
+ * In such a case there would always be dentry present.
+ */
+static int ll_d_mountpoint(struct dentry *dparent, struct dentry *dchild,
+ struct qstr *name)
+{
+ int mounted = 0;
+
+ if (unlikely(dchild)) {
+ mounted = d_mountpoint(dchild);
+ } else if (dparent) {
+ dchild = d_lookup(dparent, name);
+ if (dchild) {
+ mounted = d_mountpoint(dchild);
+ dput(dchild);
+ }
+ }
+ return mounted;
+}
+
+int ll_unlock(__u32 mode, struct lustre_handle *lockh)
+{
+ ENTRY;
+
+ ldlm_lock_decref(lockh, mode);
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
-static int ll_test_inode(struct inode *inode, unsigned long ino, void *opaque)
-#else
+ RETURN(0);
+}
+
+
+/* called from iget5_locked->find_inode() under inode_lock spinlock */
static int ll_test_inode(struct inode *inode, void *opaque)
-#endif
{
- static int last_ino, last_gen, last_count;
- struct lustre_md *md = opaque;
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct lustre_md *md = opaque;
- if (!(md->body->valid & (OBD_MD_FLGENER | OBD_MD_FLID))) {
- CERROR("MDS body missing inum or generation\n");
+ if (unlikely(!(md->body->valid & OBD_MD_FLID))) {
+ CERROR("MDS body missing FID\n");
return 0;
}
- if (last_ino == id_ino(&md->body->id1) &&
- last_gen == id_gen(&md->body->id1) &&
- 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 = id_ino(&md->body->id1);
- last_gen = id_gen(&md->body->id1);
- CDEBUG(D_VFSTRACE,
- "comparing inode %p ino "DLID4" to body "DLID4"\n",
- inode, OLID4(&ll_i2info(inode)->lli_id),
- OLID4(&md->body->id1));
- }
-
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
- if (inode->i_ino != id_ino(&md->body->id1))
- return 0;
-#endif
- if (inode->i_generation != id_gen(&md->body->id1))
+ if (!lu_fid_eq(&lli->lli_fid, &md->body->fid1))
return 0;
- if (id_group(&ll_i2info(inode)->lli_id) != id_group(&md->body->id1))
- 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_unlock(__u32 mode, struct lustre_handle *lockh)
+static int ll_set_inode(struct inode *inode, void *opaque)
{
- ENTRY;
+ struct ll_inode_info *lli = ll_i2info(inode);
+ struct mdt_body *body = ((struct lustre_md *)opaque)->body;
- ldlm_lock_decref(lockh, mode);
+ if (unlikely(!(body->valid & OBD_MD_FLID))) {
+ CERROR("MDS body missing FID\n");
+ return -EINVAL;
+ }
- RETURN(0);
-}
+ lli->lli_fid = body->fid1;
+ if (unlikely(!(body->valid & OBD_MD_FLTYPE))) {
+ CERROR("Can not initialize inode "DFID" without object type: "
+ "valid = "LPX64"\n", PFID(&lli->lli_fid), body->valid);
+ return -EINVAL;
+ }
+
+ inode->i_mode = (inode->i_mode & ~S_IFMT) | (body->mode & S_IFMT);
+ if (unlikely(inode->i_mode == 0)) {
+ CERROR("Invalid inode "DFID" type\n", PFID(&lli->lli_fid));
+ return -EINVAL;
+ }
+
+ ll_lli_init(lli);
-/*
- * 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)
-{
- ll_read_inode2(inode, opaque);
return 0;
}
+
+/*
+ * Get an inode by inode number (already instantiated by the intent lookup).
+ * Returns inode or NULL
+ */
struct inode *ll_iget(struct super_block *sb, ino_t hash,
struct lustre_md *md)
{
- struct inode *inode;
- struct timeval tstart, now;
-
- do_gettimeofday(&tstart);
+ struct inode *inode;
+ ENTRY;
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);
+ if (inode->i_state & I_NEW) {
+ int rc = 0;
+
+ ll_read_inode2(inode, md);
+ if (S_ISREG(inode->i_mode) &&
+ ll_i2info(inode)->lli_clob == NULL) {
+ CDEBUG(D_INODE,
+ "%s: apply lsm %p to inode "DFID".\n",
+ ll_get_fsname(sb, NULL, 0), md->lsm,
+ PFID(ll_inode2fid(inode)));
+ rc = cl_file_inode_init(inode, md);
+ }
+ if (rc != 0) {
+ make_bad_inode(inode);
+ unlock_new_inode(inode);
+ iput(inode);
+ inode = ERR_PTR(rc);
+ } else
+ unlock_new_inode(inode);
+ } else if (!(inode->i_state & (I_FREEING | I_CLEAR)))
+ ll_update_inode(inode, md);
+ CDEBUG(D_VFSTRACE, "got inode: %p for "DFID"\n",
+ inode, PFID(&md->body->fid1));
}
-
- /* XXX: debugging for 7346 -bzzz */
- do_gettimeofday(&now);
- if (now.tv_sec - tstart.tv_sec > obd_timeout / 2) {
- struct ll_inode_info *lli = ll_i2info(inode);
- CDEBUG(D_ERROR, "waiting for inode 0x%p "DLID4" took %ds\n",
- inode, OLID4(&lli->lli_id),
- (int) (now.tv_sec - tstart.tv_sec));
- portals_debug_dumplog();
- }
-
- return inode;
+ RETURN(inode);
}
-#else
-struct inode *ll_iget(struct super_block *sb, ino_t hash,
- struct lustre_md *md)
+
+static void ll_invalidate_negative_children(struct inode *dir)
{
- 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;
+ struct dentry *dentry, *tmp_subdir;
+ struct ll_d_hlist_node *p;
+
+ ll_lock_dcache(dir);
+ ll_d_hlist_for_each_entry(dentry, p, &dir->i_dentry, d_alias) {
+ spin_lock(&dentry->d_lock);
+ if (!list_empty(&dentry->d_subdirs)) {
+ struct dentry *child;
+
+ list_for_each_entry_safe(child, tmp_subdir,
+ &dentry->d_subdirs,
+ d_u.d_child) {
+ if (child->d_inode == NULL)
+ d_lustre_invalidate(child, 1);
+ }
+ }
+ spin_unlock(&dentry->d_lock);
+ }
+ ll_unlock_dcache(dir);
}
-#endif
-int ll_mdc_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
- void *data, int flag)
+int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
+ void *data, int flag)
{
int rc;
struct lustre_handle lockh;
switch (flag) {
case LDLM_CB_BLOCKING:
ldlm_lock2handle(lock, &lockh);
- rc = ldlm_cli_cancel(&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: {
- struct inode *inode = ll_inode_from_lock(lock);
- struct ll_inode_info *li = ll_i2info(inode);
+ struct inode *inode = ll_inode_from_resource_lock(lock);
+ struct ll_inode_info *lli;
__u64 bits = lock->l_policy_data.l_inodebits.bits;
+ struct lu_fid *fid;
+ ldlm_mode_t mode = lock->l_req_mode;
+
+ /* Inode is set to lock->l_resource->lr_lvb_inode
+ * for mdc - bug 24555 */
+ LASSERT(lock->l_ast_data == NULL);
- /* For lookup locks: Invalidate all dentries associated with
- this inode, for UPDATE locks - invalidate directory pages */
+ /* Invalidate all dentries associated with this inode */
if (inode == NULL)
break;
- if (lock->l_resource->lr_name.name[0] != id_fid(&li->lli_id) ||
- lock->l_resource->lr_name.name[1] != id_group(&li->lli_id)) {
- LDLM_ERROR(lock, "data mismatch with object %lu/%lu",
- (unsigned long)id_fid(&li->lli_id),
- (unsigned long)id_group(&li->lli_id));
+ LASSERT(lock->l_flags & LDLM_FL_CANCELING);
+ /* For OPEN locks we differentiate between lock modes
+ * LCK_CR, LCK_CW, LCK_PR - bug 22891 */
+ if (bits & (MDS_INODELOCK_LOOKUP | MDS_INODELOCK_UPDATE |
+ MDS_INODELOCK_LAYOUT | MDS_INODELOCK_PERM))
+ ll_have_md_lock(inode, &bits, LCK_MINMODE);
+
+ if (bits & MDS_INODELOCK_OPEN)
+ ll_have_md_lock(inode, &bits, mode);
+
+ fid = ll_inode2fid(inode);
+ if (lock->l_resource->lr_name.name[0] != fid_seq(fid) ||
+ lock->l_resource->lr_name.name[1] != fid_oid(fid) ||
+ lock->l_resource->lr_name.name[2] != fid_ver(fid)) {
+ LDLM_ERROR(lock, "data mismatch with object "
+ DFID" (%p)", PFID(fid), inode);
}
if (bits & MDS_INODELOCK_OPEN) {
"%d, inode %ld\n", lock->l_req_mode,
inode->i_ino);
}
- ll_md_real_close(ll_i2mdexp(inode), inode, flags);
+ ll_md_real_close(inode, flags);
}
- if ((bits & MDS_INODELOCK_UPDATE) && LLI_HAVE_FLSIZE(inode)) {
- CDEBUG(D_OTHER, "isize for %lu/%u(%p) from mds "
- "is not actual\n", inode->i_ino,
- inode->i_generation, inode);
- clear_bit(LLI_F_HAVE_MDS_SIZE_LOCK,
- &(ll_i2info(inode)->lli_flags));
- }
+ lli = ll_i2info(inode);
+ if (bits & MDS_INODELOCK_LAYOUT) {
+ struct cl_object_conf conf = { { 0 } };
+ conf.coc_opc = OBJECT_CONF_INVALIDATE;
+ conf.coc_inode = inode;
+ rc = ll_layout_conf(inode, &conf);
+ if (rc)
+ CDEBUG(D_INODE, "invaliding layout %d.\n", rc);
+ }
+
+ if (bits & MDS_INODELOCK_UPDATE)
+ lli->lli_flags &= ~LLIF_MDS_SIZE_LOCK;
- /* 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/%u(%p)\n",
- inode->i_ino, inode->i_generation, inode);
+ (bits & MDS_INODELOCK_UPDATE)) {
+ CDEBUG(D_INODE, "invalidating inode %lu\n",
+ inode->i_ino);
truncate_inode_pages(inode->i_mapping, 0);
- }
+ ll_invalidate_negative_children(inode);
+ }
- ll_inode_invalidate_acl(inode);
-
- if (inode->i_sb->s_root &&
- inode != inode->i_sb->s_root->d_inode &&
- (bits & MDS_INODELOCK_LOOKUP))
- ll_unhash_aliases(inode);
+ if (inode->i_sb->s_root &&
+ inode != inode->i_sb->s_root->d_inode &&
+ (bits & (MDS_INODELOCK_LOOKUP | MDS_INODELOCK_PERM)))
+ ll_invalidate_aliases(inode);
iput(inode);
break;
}
RETURN(0);
}
-/* 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)
+__u32 ll_i2suppgid(struct inode *i)
{
- struct list_head *tmp;
+ if (cfs_curproc_is_in_groups(i->i_gid))
+ return (__u32)i->i_gid;
+ else
+ return (__u32)(-1);
+}
- spin_lock(&dcache_lock);
- list_for_each(tmp, &inode->i_dentry) {
- struct dentry *dentry = list_entry(tmp, struct dentry, d_alias);
+/* Pack the required supplementary groups into the supplied groups array.
+ * If we don't need to use the groups from the target inode(s) then we
+ * instead pack one or more groups from the user's supplementary group
+ * array in case it might be useful. Not needed if doing an MDS-side upcall. */
+void ll_i2gids(__u32 *suppgids, struct inode *i1, struct inode *i2)
+{
+#if 0
+ int i;
+#endif
- /* We are called here with 'de' already on the aliases list. */
- if (dentry == de) {
- CERROR("whoops\n");
- continue;
- }
+ LASSERT(i1 != NULL);
+ LASSERT(suppgids != NULL);
- if (dentry->d_parent != de->d_parent)
- continue;
+ suppgids[0] = ll_i2suppgid(i1);
- if (dentry->d_name.len != de->d_name.len)
- continue;
+ if (i2)
+ suppgids[1] = ll_i2suppgid(i2);
+ else
+ suppgids[1] = -1;
- if (memcmp(dentry->d_name.name, de->d_name.name,
- de->d_name.len) != 0)
+#if 0
+ for (i = 0; i < current_ngroups; i++) {
+ if (suppgids[0] == -1) {
+ if (current_groups[i] != suppgids[1])
+ suppgids[0] = current_groups[i];
continue;
-
- if (!list_empty(&dentry->d_lru))
- list_del_init(&dentry->d_lru);
-
- hlist_del_init(&dentry->d_hash);
- __d_rehash(dentry); /* 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;
+ }
+ if (suppgids[1] == -1) {
+ if (current_groups[i] != suppgids[0])
+ suppgids[1] = current_groups[i];
+ continue;
+ }
+ break;
}
+#endif
+}
- spin_unlock(&dcache_lock);
+/*
+ * try to reuse three types of dentry:
+ * 1. unhashed alias, this one is unhashed by d_invalidate (but it may be valid
+ * by concurrent .revalidate).
+ * 2. INVALID alias (common case for no valid ldlm lock held, but this flag may
+ * be cleared by others calling d_lustre_revalidate).
+ * 3. DISCONNECTED alias.
+ */
+static struct dentry *ll_find_alias(struct inode *inode, struct dentry *dentry)
+{
+ struct dentry *alias, *discon_alias, *invalid_alias;
+ struct ll_d_hlist_node *p;
+
+ if (ll_d_hlist_empty(&inode->i_dentry))
+ return NULL;
+
+ discon_alias = invalid_alias = NULL;
+
+ ll_lock_dcache(inode);
+ ll_d_hlist_for_each_entry(alias, p, &inode->i_dentry, d_alias) {
+ LASSERT(alias != dentry);
+
+ spin_lock(&alias->d_lock);
+ if (alias->d_flags & DCACHE_DISCONNECTED)
+ /* LASSERT(last_discon == NULL); LU-405, bz 20055 */
+ discon_alias = alias;
+ else if (alias->d_parent == dentry->d_parent &&
+ alias->d_name.hash == dentry->d_name.hash &&
+ alias->d_name.len == dentry->d_name.len &&
+ memcmp(alias->d_name.name, dentry->d_name.name,
+ dentry->d_name.len) == 0)
+ invalid_alias = alias;
+ spin_unlock(&alias->d_lock);
+
+ if (invalid_alias)
+ break;
+ }
+ alias = invalid_alias ?: discon_alias ?: NULL;
+ if (alias) {
+ spin_lock(&alias->d_lock);
+ dget_dlock(alias);
+ spin_unlock(&alias->d_lock);
+ }
+ ll_unlock_dcache(inode);
+
+ return alias;
+}
+/*
+ * Similar to d_splice_alias(), but lustre treats invalid alias
+ * similar to DCACHE_DISCONNECTED, and tries to use it anyway.
+ */
+struct dentry *ll_splice_alias(struct inode *inode, struct dentry *de)
+{
+ struct dentry *new;
+
+ if (inode) {
+ new = ll_find_alias(inode, de);
+ if (new) {
+ ll_dops_init(new, 1, 1);
+ d_move(new, de);
+ iput(inode);
+ CDEBUG(D_DENTRY,
+ "Reuse dentry %p inode %p refc %d flags %#x\n",
+ new, new->d_inode, d_refcount(new), new->d_flags);
+ return new;
+ }
+ }
+ ll_dops_init(de, 1, 1);
+ __d_lustre_invalidate(de);
+ d_add(de, inode);
+ CDEBUG(D_DENTRY, "Add dentry %p inode %p refc %d flags %#x\n",
+ de, de->d_inode, d_refcount(de), de->d_flags);
return de;
}
-static int lookup_it_finish(struct ptlrpc_request *request, int offset,
- struct lookup_intent *it, void *data)
+int ll_lookup_it_finish(struct ptlrpc_request *request,
+ struct lookup_intent *it, void *data)
{
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;
-
- /* NB 1 request reference will be taken away by ll_intent_lock()
- * when I return */
- if (!it_disposition(it, DISP_LOOKUP_NEG)) {
- ENTRY;
-
- rc = ll_prep_inode(sbi->ll_dt_exp, sbi->ll_md_exp,
- &inode, request, offset, dentry->d_sb);
+ __u64 bits = 0;
+ int rc;
+ ENTRY;
+
+ /* NB 1 request reference will be taken away by ll_intent_lock()
+ * when I return */
+ CDEBUG(D_DENTRY, "it %p it_disposition %x\n", it,
+ it->d.lustre.it_disposition);
+ if (!it_disposition(it, DISP_LOOKUP_NEG)) {
+ rc = ll_prep_inode(&inode, request, (*de)->d_sb, it);
if (rc)
RETURN(rc);
- CDEBUG(D_DLMTRACE, "setting l_data to inode %p (%lu/%u)\n",
- inode, inode->i_ino, inode->i_generation);
-
- mdc_set_lock_data(NULL, &LUSTRE_IT(it)->it_lock_handle, inode);
-
- /* 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;
- ldlm_error_t rc;
-
- LASSERT(lsm->lsm_object_id != 0);
-
- /* bug 2334: drop MDS lock before acquiring OST lock */
- ll_intent_drop_lock(it);
-
- if (!LLI_HAVE_FLSIZE(inode)) {
- CDEBUG(D_INODE, "retrieve size from OSS\n");
- rc = ll_glimpse_size(inode);
- if (rc) {
- iput(inode);
- RETURN(rc);
- }
- }
- }
-
- dentry = *de = ll_find_alias(inode, dentry);
- } else {
- ENTRY;
+ ll_set_lock_data(ll_i2sbi(parent)->ll_md_exp, inode, it, &bits);
+
+ /* We used to query real size from OSTs here, but actually
+ this is not needed. For stat() calls size would be updated
+ from subsequent do_revalidate()->ll_inode_revalidate_it() in
+ 2.4 and
+ vfs_getattr_it->ll_getattr()->ll_inode_revalidate_it() in 2.6
+ Everybody else who needs correct file size would call
+ ll_glimpse_size or some equivalent themselves anyway.
+ Also see bug 7198. */
+ }
+
+ /* Only hash *de if it is unhashed (new dentry).
+ * Atoimc_open may passin hashed dentries for open.
+ */
+ if (d_unhashed(*de))
+ *de = ll_splice_alias(inode, *de);
+
+ if (!it_disposition(it, DISP_LOOKUP_NEG)) {
+ /* we have lookup look - unhide dentry */
+ if (bits & MDS_INODELOCK_LOOKUP)
+ d_lustre_revalidate(*de);
+ } else if (!it_disposition(it, DISP_OPEN_CREATE)) {
+ /* If file created on server, don't depend on parent UPDATE
+ * lock to unhide it. It is left hidden and next lookup can
+ * find it in ll_splice_alias.
+ */
+ /* Check that parent has UPDATE lock. */
+ struct lookup_intent parent_it = {
+ .it_op = IT_GETATTR,
+ .d.lustre.it_lock_handle = 0 };
+
+ if (md_revalidate_lock(ll_i2mdexp(parent), &parent_it,
+ &ll_i2info(parent)->lli_fid, NULL)) {
+ d_lustre_revalidate(*de);
+ ll_intent_release(&parent_it);
+ }
}
- dentry->d_op = &ll_d_ops;
- ll_set_dd(dentry);
-
- if (dentry == saved)
- d_add(dentry, inode);
-
RETURN(0);
}
static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
- struct nameidata *nd, int flags)
+ struct lookup_intent *it, int lookup_flags)
{
- struct lookup_intent *it = flags ? &nd->intent.open : NULL;
struct lookup_intent lookup_it = { .it_op = IT_LOOKUP };
struct dentry *save = dentry, *retval;
struct ptlrpc_request *req = NULL;
- int rc, gns_it, gns_flags;
+ struct md_op_data *op_data;
struct it_cb_data icbd;
- struct lustre_id pid;
+ __u32 opc;
+ int rc;
ENTRY;
- if (dentry->d_name.len > EXT3_NAME_LEN)
+ if (dentry->d_name.len > ll_i2sbi(parent)->ll_namelen)
RETURN(ERR_PTR(-ENAMETOOLONG));
CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),intent=%s\n",
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;
-
- gns_it = nd ? nd->intent.open.it_op : IT_OPEN;
- gns_flags = nd ? nd->flags : LOOKUP_CONTINUE;
ll_frob_intent(&it, &lookup_it);
+ /* As do_lookup is called before follow_mount, root dentry may be left
+ * not valid, revalidate it here. */
+ if (parent->i_sb->s_root && (parent->i_sb->s_root->d_inode == parent) &&
+ (it->it_op & (IT_OPEN | IT_CREAT))) {
+ rc = ll_inode_revalidate_it(parent->i_sb->s_root, it,
+ MDS_INODELOCK_LOOKUP);
+ if (rc)
+ RETURN(ERR_PTR(rc));
+ }
+
+ if (it->it_op == IT_GETATTR) {
+ rc = ll_statahead_enter(parent, &dentry, 0);
+ if (rc == 1) {
+ if (dentry == save)
+ GOTO(out, retval = NULL);
+ GOTO(out, retval = dentry);
+ }
+ }
+
icbd.icbd_childp = &dentry;
icbd.icbd_parent = parent;
- ll_inode2id(&pid, parent);
-
- /*ONLY need key for open_create file*/
- rc = ll_crypto_init_it_key(parent, it);
- if (rc != 0)
- GOTO(out, retval = ERR_PTR(rc));
-
- rc = md_intent_lock(ll_i2mdexp(parent), &pid,
- (char *)dentry->d_name.name, dentry->d_name.len,
- NULL, 0, NULL, it, flags, &req,
- ll_mdc_blocking_ast);
+
+ if (it->it_op & IT_CREAT ||
+ (it->it_op & IT_OPEN && it->it_create_mode & O_CREAT))
+ opc = LUSTRE_OPC_CREATE;
+ else
+ opc = LUSTRE_OPC_ANY;
+
+ op_data = ll_prep_md_op_data(NULL, parent, NULL, dentry->d_name.name,
+ dentry->d_name.len, lookup_flags, opc,
+ NULL);
+ if (IS_ERR(op_data))
+ RETURN((void *)op_data);
+
+ /* enforce umask if acl disabled or MDS doesn't support umask */
+ if (!IS_POSIXACL(parent) || !exp_connect_umask(ll_i2mdexp(parent)))
+ it->it_create_mode &= ~cfs_curproc_umask();
+
+ rc = md_intent_lock(ll_i2mdexp(parent), op_data, NULL, 0, it,
+ lookup_flags, &req, ll_md_blocking_ast, 0);
+ ll_finish_md_op_data(op_data);
if (rc < 0)
GOTO(out, retval = ERR_PTR(rc));
-
- rc = lookup_it_finish(req, 1, it, &icbd);
+
+ rc = ll_lookup_it_finish(req, it, &icbd);
if (rc != 0) {
ll_intent_release(it);
GOTO(out, retval = ERR_PTR(rc));
}
+ if ((it->it_op & IT_OPEN) && dentry->d_inode &&
+ !S_ISREG(dentry->d_inode->i_mode) &&
+ !S_ISDIR(dentry->d_inode->i_mode)) {
+ ll_release_openhandle(dentry, it);
+ }
ll_lookup_finish_locks(it, dentry);
- if (!req && (it->it_op & IT_GETATTR) && dentry->d_inode)
- ll_audit_log(dentry->d_inode, AUDIT_STAT, 0);
-
- if (nd && dentry->d_inode != NULL &&
- dentry->d_inode->i_mode & S_ISUID && S_ISDIR(dentry->d_inode->i_mode) &&
- ((gns_flags & LOOKUP_CONTINUE) || (gns_it & (IT_CHDIR | IT_OPEN))))
- {
- CDEBUG(D_DENTRY, "possible GNS dentry %*s %p found, "
- "mounting it\n", (int)dentry->d_name.len,
- dentry->d_name.name, dentry);
-
- rc = ll_gns_mount_object(dentry, nd->mnt);
- if (rc) {
- /*
- * just reporting about GNS failures, lookup() is
- * successful, do not stop it.
- *
- * GNS failure may be that object is found in SUID bit
- * marked dir but it is not regular file and we should
- * lookup further until we find correct mount
- * object. This will allow to perform GNS mount is the
- * following case for instance:
- *
- * /mnt/lustre/gns_mount/.mntinfo/.mntinfo/..../.mntinfo
- * where all ".mntinfo" are dirs and only last one is
- * reg file.
- */
- CDEBUG(D_DENTRY, "failed to mount %*s, err %d\n",
- (int)dentry->d_name.len, dentry->d_name.name, rc);
- }
- }
-
if (dentry == save)
GOTO(out, retval = NULL);
else
out:
if (req)
ptlrpc_req_finished(req);
- if (it == &lookup_it)
- ll_intent_release(it);
- 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);
+ if (it->it_op == IT_GETATTR && (retval == NULL || retval == dentry))
+ ll_statahead_mark(parent, dentry);
return retval;
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
+#ifdef HAVE_IOP_ATOMIC_OPEN
+static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
+ unsigned int flags)
+{
+ struct lookup_intent *itp, it = { .it_op = IT_GETATTR };
+ struct dentry *de;
+
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),flags=%u\n",
+ dentry->d_name.len, dentry->d_name.name, parent->i_ino,
+ parent->i_generation, parent, flags);
+
+ /* Optimize away (CREATE && !OPEN). Let .create handle the race. */
+ if ((flags & LOOKUP_CREATE ) && !(flags & LOOKUP_OPEN)) {
+ ll_dops_init(dentry, 1, 1);
+ __d_lustre_invalidate(dentry);
+ d_add(dentry, NULL);
+ return NULL;
+ }
+
+ if (flags & (LOOKUP_PARENT|LOOKUP_OPEN|LOOKUP_CREATE))
+ itp = NULL;
+ else
+ itp = ⁢
+ de = ll_lookup_it(parent, dentry, itp, 0);
+
+ if (itp != NULL)
+ ll_intent_release(itp);
+
+ return de;
+}
+
+/*
+ * For cached negative dentry and new dentry, handle lookup/create/open
+ * together.
+ */
+static int ll_atomic_open(struct inode *dir, struct dentry *dentry,
+ struct file *file, unsigned open_flags,
+ umode_t mode, int *opened)
+{
+ struct lookup_intent *it;
+ struct dentry *de;
+ long long lookup_flags = LOOKUP_OPEN;
+ int rc = 0;
+ ENTRY;
+
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),file %p,"
+ "open_flags %x,mode %x opened %d\n",
+ dentry->d_name.len, dentry->d_name.name, dir->i_ino,
+ dir->i_generation, dir, file, open_flags, mode, *opened);
+
+ OBD_ALLOC(it, sizeof(*it));
+ if (!it)
+ RETURN(-ENOMEM);
+
+ it->it_op = IT_OPEN;
+ if (mode) {
+ it->it_op |= IT_CREAT;
+ lookup_flags |= LOOKUP_CREATE;
+ }
+ it->it_create_mode = (mode & S_IALLUGO) | S_IFREG;
+ it->it_flags = (open_flags & ~O_ACCMODE) | OPEN_FMODE(open_flags);
+
+ /* Dentry added to dcache tree in ll_lookup_it */
+ de = ll_lookup_it(dir, dentry, it, lookup_flags);
+ if (IS_ERR(de))
+ rc = PTR_ERR(de);
+ else if (de != NULL)
+ dentry = de;
+
+ if (!rc) {
+ if (it_disposition(it, DISP_OPEN_CREATE)) {
+ /* Dentry instantiated in ll_create_it. */
+ rc = ll_create_it(dir, dentry, mode, it);
+ if (rc) {
+ /* We dget in ll_splice_alias. */
+ if (de != NULL)
+ dput(de);
+ goto out_release;
+ }
+
+ *opened |= FILE_CREATED;
+ }
+ if (dentry->d_inode && it_disposition(it, DISP_OPEN_OPEN)) {
+ /* Open dentry. */
+ if (S_ISFIFO(dentry->d_inode->i_mode)) {
+ /* We cannot call open here as it would
+ * deadlock.
+ */
+ if (it_disposition(it, DISP_ENQ_OPEN_REF))
+ ptlrpc_req_finished(
+ (struct ptlrpc_request *)
+ it->d.lustre.it_data);
+ rc = finish_no_open(file, de);
+ } else {
+ file->private_data = it;
+ rc = finish_open(file, dentry, NULL, opened);
+ /* We dget in ll_splice_alias. finish_open takes
+ * care of dget for fd open.
+ */
+ if (de != NULL)
+ dput(de);
+ }
+ } else {
+ rc = finish_no_open(file, de);
+ }
+ }
+
+out_release:
+ ll_intent_release(it);
+ OBD_FREE(it, sizeof(*it));
+
+ RETURN(rc);
+}
+
+#else /* !HAVE_IOP_ATOMIC_OPEN */
+struct lookup_intent *ll_convert_intent(struct open_intent *oit,
+ int lookup_flags)
+{
+ struct lookup_intent *it;
+
+ OBD_ALLOC(it, sizeof(*it));
+ if (!it)
+ return ERR_PTR(-ENOMEM);
+
+ if (lookup_flags & LOOKUP_OPEN) {
+ it->it_op = IT_OPEN;
+ if (lookup_flags & LOOKUP_CREATE)
+ it->it_op |= IT_CREAT;
+ it->it_create_mode = (oit->create_mode & S_IALLUGO) | S_IFREG;
+ it->it_flags = ll_namei_to_lookup_intent_flag(oit->flags);
+ } else {
+ it->it_op = IT_GETATTR;
+ }
+
+ return it;
+}
+
static struct dentry *ll_lookup_nd(struct inode *parent, struct dentry *dentry,
struct nameidata *nd)
{
struct dentry *de;
ENTRY;
- if (nd && nd->flags & LOOKUP_LAST && !(nd->flags & LOOKUP_LINK_NOTLAST))
- de = ll_lookup_it(parent, dentry, nd, nd->flags);
- else
- de = ll_lookup_it(parent, dentry, nd, 0);
+ if (nd && !(nd->flags & (LOOKUP_CONTINUE|LOOKUP_PARENT))) {
+ struct lookup_intent *it;
+
+ if (ll_d2d(dentry) && ll_d2d(dentry)->lld_it) {
+ it = ll_d2d(dentry)->lld_it;
+ ll_d2d(dentry)->lld_it = NULL;
+ } else {
+ if ((nd->flags & LOOKUP_CREATE ) && !(nd->flags & LOOKUP_OPEN)) {
+ /* We are sure this is new dentry, so we need to create
+ our private data and set the dentry ops */
+ ll_dops_init(dentry, 1, 1);
+ __d_lustre_invalidate(dentry);
+ d_add(dentry, NULL);
+ RETURN(NULL);
+ }
+ it = ll_convert_intent(&nd->intent.open, nd->flags);
+ if (IS_ERR(it))
+ RETURN((struct dentry *)it);
+ }
+
+ de = ll_lookup_it(parent, dentry, it, nd->flags);
+ if (de)
+ dentry = de;
+ if ((nd->flags & LOOKUP_OPEN) && !IS_ERR(dentry)) { /* Open */
+ if (dentry->d_inode &&
+ it_disposition(it, DISP_OPEN_OPEN)) { /* nocreate */
+ if (S_ISFIFO(dentry->d_inode->i_mode)) {
+ // We cannot call open here as it would
+ // deadlock.
+ ptlrpc_req_finished(
+ (struct ptlrpc_request *)
+ it->d.lustre.it_data);
+ } else {
+ struct file *filp;
+
+ nd->intent.open.file->private_data = it;
+ filp = lookup_instantiate_filp(nd,
+ dentry,
+ NULL);
+ if (IS_ERR(filp)) {
+ if (de)
+ dput(de);
+ de = (struct dentry *)filp;
+ }
+ }
+ } else if (it_disposition(it, DISP_OPEN_CREATE)) {
+ // XXX This can only reliably work on assumption
+ // that there are NO hashed negative dentries.
+ ll_d2d(dentry)->lld_it = it;
+ it = NULL; /* Will be freed in ll_create_nd */
+ /* We absolutely depend on ll_create_nd to be
+ * called to not leak this intent and possible
+ * data attached to it */
+ }
+ }
+
+ if (it) {
+ ll_intent_release(it);
+ OBD_FREE(it, sizeof(*it));
+ }
+ } else {
+ de = ll_lookup_it(parent, dentry, NULL, 0);
+ }
RETURN(de);
}
-#endif
+#endif /* HAVE_IOP_ATOMIC_OPEN */
/* 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 rc;
ENTRY;
+ LASSERT(it && it->d.lustre.it_disposition);
- LASSERT(it && LUSTRE_IT(it)->it_disposition);
-
- request = LUSTRE_IT(it)->it_data;
- rc = ll_prep_inode(sbi->ll_dt_exp, sbi->ll_md_exp,
- &inode, request, 1, dir->i_sb);
+ LASSERT(it_disposition(it, DISP_ENQ_CREATE_REF));
+ request = it->d.lustre.it_data;
+ it_clear_disposition(it, DISP_ENQ_CREATE_REF);
+ rc = ll_prep_inode(&inode, request, dir->i_sb, it);
if (rc)
GOTO(out, inode = ERR_PTR(rc));
- LASSERT(list_empty(&inode->i_dentry));
+ LASSERT(ll_d_hlist_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, &LUSTRE_IT(it)->it_lock_handle, inode);
+ ll_set_lock_data(sbi->ll_md_exp, inode, it, NULL);
EXIT;
out:
ptlrpc_req_finished(request);
* with d_instantiate().
*/
static int ll_create_it(struct inode *dir, struct dentry *dentry, int mode,
- struct lookup_intent *it)
+ struct lookup_intent *it)
{
- struct inode *inode;
- struct ptlrpc_request *request = LUSTRE_IT(it)->it_data;
- struct obd_export *md_exp = ll_i2mdexp(dir);
- int rc = 0;
- ENTRY;
+ struct inode *inode;
+ int rc = 0;
+ ENTRY;
- CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),intent=%s\n",
- dentry->d_name.len, dentry->d_name.name, dir->i_ino,
- dir->i_generation, dir, LL_IT2STR(it));
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),intent=%s\n",
+ dentry->d_name.len, dentry->d_name.name, dir->i_ino,
+ dir->i_generation, dir, LL_IT2STR(it));
- rc = it_open_error(DISP_OPEN_CREATE, it);
- if (rc)
- RETURN(rc);
+ rc = it_open_error(DISP_OPEN_CREATE, it);
+ if (rc)
+ RETURN(rc);
- mdc_store_inode_generation(md_exp, request, MDS_REQ_INTENT_REC_OFF, 1);
- inode = ll_create_node(dir, (char *)dentry->d_name.name,
- dentry->d_name.len, NULL, 0, mode, 0, it);
- if (IS_ERR(inode))
- RETURN(PTR_ERR(inode));
+ inode = ll_create_node(dir, dentry->d_name.name, dentry->d_name.len,
+ NULL, 0, mode, 0, it);
+ if (IS_ERR(inode))
+ RETURN(PTR_ERR(inode));
- d_instantiate(dentry, inode);
- RETURN(0);
-}
+ if (filename_is_volatile(dentry->d_name.name, dentry->d_name.len, NULL))
+ ll_i2info(inode)->lli_volatile = true;
-#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)
-{
- return ll_create_it(dir, dentry, mode, &nd->intent.open);
+ d_instantiate(dentry, inode);
+ RETURN(0);
}
-#endif
-static void ll_update_times(struct ptlrpc_request *request, int offset,
+static void ll_update_times(struct ptlrpc_request *request,
struct inode *inode)
{
- struct mds_body *body = lustre_msg_buf(request->rq_repmsg, offset,
- sizeof(*body));
- LASSERT(body);
+ struct mdt_body *body = req_capsule_server_get(&request->rq_pill,
+ &RMF_MDT_BODY);
+ LASSERT(body);
if (body->valid & OBD_MD_FLMTIME &&
body->mtime > LTIME_S(inode->i_mtime)) {
- CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %u\n",
+ CDEBUG(D_INODE, "setting ino %lu mtime from %lu to "LPU64"\n",
inode->i_ino, LTIME_S(inode->i_mtime), body->mtime);
LTIME_S(inode->i_mtime) = body->mtime;
}
LTIME_S(inode->i_ctime) = body->ctime;
}
-static int ll_mknod_raw(struct nameidata *nd, int mode, dev_t rdev)
+static int ll_new_node(struct inode *dir, struct qstr *name,
+ const char *tgt, int mode, int rdev,
+ struct dentry *dchild, __u32 opc)
{
struct ptlrpc_request *request = NULL;
- struct inode *dir = nd->dentry->d_inode;
+ struct md_op_data *op_data;
+ struct inode *inode = NULL;
struct ll_sb_info *sbi = ll_i2sbi(dir);
- struct mdc_op_data *op_data;
- int err = -EMLINK, key_size = 0;
- void *key = NULL;
+ int tgt_len = 0;
+ int err;
+
ENTRY;
+ if (unlikely(tgt != NULL))
+ tgt_len = strlen(tgt) + 1;
- CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
- nd->last.len, nd->last.name, dir->i_ino,
- dir->i_generation, dir);
+ op_data = ll_prep_md_op_data(NULL, dir, NULL, name->name,
+ name->len, 0, opc, NULL);
+ if (IS_ERR(op_data))
+ GOTO(err_exit, err = PTR_ERR(op_data));
- mode &= ~current->fs->umask;
+ err = md_create(sbi->ll_md_exp, op_data, tgt, tgt_len, mode,
+ cfs_curproc_fsuid(), cfs_curproc_fsgid(),
+ cfs_curproc_cap_pack(), rdev, &request);
+ ll_finish_md_op_data(op_data);
+ if (err)
+ GOTO(err_exit, err);
+
+ ll_update_times(request, dir);
+
+ if (dchild) {
+ err = ll_prep_inode(&inode, request, dchild->d_sb, NULL);
+ if (err)
+ GOTO(err_exit, err);
+
+ d_instantiate(dchild, inode);
+ }
+ EXIT;
+err_exit:
+ ptlrpc_req_finished(request);
+
+ return err;
+}
+
+static int ll_mknod_generic(struct inode *dir, struct qstr *name, int mode,
+ unsigned rdev, struct dentry *dchild)
+{
+ int err;
+ ENTRY;
+
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p) mode %o dev %x\n",
+ name->len, name->name, dir->i_ino, dir->i_generation, dir,
+ mode, rdev);
+
+ if (!IS_POSIXACL(dir) || !exp_connect_umask(ll_i2mdexp(dir)))
+ mode &= ~cfs_curproc_umask();
switch (mode & S_IFMT) {
case 0:
- case S_IFREG:
mode |= S_IFREG; /* for mode = 0 case, fallthrough */
- ll_crypto_create_key(dir, mode, &key, &key_size);
+ case S_IFREG:
case S_IFCHR:
case S_IFBLK:
case S_IFIFO:
case S_IFSOCK:
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (op_data == NULL)
- RETURN(-ENOMEM);
- ll_prepare_mdc_data(op_data, dir, NULL,
- (char *)nd->last.name,
- nd->last.len, 0);
- err = md_create(sbi->ll_md_exp, op_data, key, key_size, mode,
- current->fsuid, current->fsgid, rdev,
- &request);
- OBD_FREE(op_data, sizeof(*op_data));
- if (err == 0)
- ll_update_times(request, 0, dir);
- ptlrpc_req_finished(request);
+ err = ll_new_node(dir, name, NULL, mode, rdev, dchild,
+ LUSTRE_OPC_MKNOD);
break;
case S_IFDIR:
err = -EPERM;
default:
err = -EINVAL;
}
- if (key && key_size)
- OBD_FREE(key, key_size);
+
+ if (!err)
+ ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_MKNOD, 1);
+
RETURN(err);
}
-static int ll_mknod(struct inode *dir, struct dentry *dchild,
- int mode, ll_dev_t rdev)
+#ifdef HAVE_IOP_ATOMIC_OPEN
+/*
+ * Plain create. Intent create is handled in atomic_open.
+ */
+static int ll_create_nd(struct inode *dir, struct dentry *dentry,
+ umode_t mode, bool want_excl)
{
- struct ptlrpc_request *request = NULL;
- struct inode *inode = NULL;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
- struct mdc_op_data *op_data;
- int err = -EMLINK;
- ENTRY;
+ int rc;
- CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
- dchild->d_name.len, dchild->d_name.name,
- dir->i_ino, dir->i_generation, dir);
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),"
+ "flags=%u, excl=%d\n",
+ dentry->d_name.len, dentry->d_name.name, dir->i_ino,
+ dir->i_generation, dir, mode, want_excl);
- mode &= ~current->fs->umask;
+ rc = ll_mknod_generic(dir, &dentry->d_name, mode, 0, dentry);
- 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:
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (op_data == NULL)
- RETURN(-ENOMEM);
-
- ll_prepare_mdc_data(op_data, dir, NULL,
- (char *)dchild->d_name.name,
- dchild->d_name.len, 0);
-
- err = md_create(sbi->ll_md_exp, op_data, NULL, 0, mode,
- current->fsuid, current->fsgid, rdev,
- &request);
- OBD_FREE(op_data, sizeof(*op_data));
- if (err)
- GOTO(out_err, err);
+ ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_CREATE, 1);
- ll_update_times(request, 0, dir);
- err = ll_prep_inode(sbi->ll_dt_exp, sbi->ll_md_exp,
- &inode, request, 0, dchild->d_sb);
- if (err)
- GOTO(out_err, err);
- break;
- case S_IFDIR:
- RETURN(-EPERM);
- break;
- default:
- RETURN(-EINVAL);
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s, unhashed %d\n",
+ dentry->d_name.len, dentry->d_name.name, d_unhashed(dentry));
+
+ return rc;
+}
+#else /* !HAVE_IOP_ATOMIC_OPEN */
+static int ll_create_nd(struct inode *dir, struct dentry *dentry,
+ ll_umode_t mode, struct nameidata *nd)
+{
+ struct lookup_intent *it = ll_d2d(dentry)->lld_it;
+ int rc;
+
+ if (!it)
+ return ll_mknod_generic(dir, &dentry->d_name, mode, 0, dentry);
+
+ ll_d2d(dentry)->lld_it = NULL;
+
+ /* Was there an error? Propagate it! */
+ if (it->d.lustre.it_status) {
+ rc = it->d.lustre.it_status;
+ goto out;
}
- d_instantiate(dchild, inode);
- EXIT;
- out_err:
- ptlrpc_req_finished(request);
- return err;
+ rc = ll_create_it(dir, dentry, mode, it);
+ if (nd && (nd->flags & LOOKUP_OPEN) && dentry->d_inode) { /* Open */
+ struct file *filp;
+
+ nd->intent.open.file->private_data = it;
+ filp = lookup_instantiate_filp(nd, dentry, NULL);
+ if (IS_ERR(filp))
+ rc = PTR_ERR(filp);
+ }
+
+out:
+ ll_intent_release(it);
+ OBD_FREE(it, sizeof(*it));
+
+ if (!rc)
+ ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_CREATE, 1);
+
+ return rc;
}
+#endif /* HAVE_IOP_ATOMIC_OPEN */
-static int ll_symlink_raw(struct nameidata *nd, const char *tgt)
+static int ll_symlink_generic(struct inode *dir, struct qstr *name,
+ const char *tgt, struct dentry *dchild)
{
- const char *name = (char *)nd->last.name;
- struct inode *dir = nd->dentry->d_inode;
- struct ptlrpc_request *request = NULL;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
- struct mdc_op_data *op_data;
- int len = nd->last.len;
- int err = -EMLINK;
+ int err;
ENTRY;
- CDEBUG(D_VFSTRACE, "VFS Op:name=%*s,dir=%lu/%u(%p),target=%s\n",
- nd->last.len, nd->last.name, dir->i_ino, dir->i_generation,
- dir, tgt);
-
- if (dir->i_nlink >= EXT3_LINK_MAX)
- RETURN(err);
-
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (op_data == NULL)
- RETURN(-ENOMEM);
- ll_prepare_mdc_data(op_data, dir, NULL, name, len, 0);
- LASSERT(tgt);
- err = md_create(sbi->ll_md_exp, op_data,
- tgt, strlen(tgt) + 1, S_IFLNK | S_IRWXUGO,
- current->fsuid, current->fsgid, 0, &request);
- OBD_FREE(op_data, sizeof(*op_data));
- if (err == 0)
- ll_update_times(request, 0, dir);
-
- ptlrpc_req_finished(request);
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p),target=%.*s\n",
+ name->len, name->name, dir->i_ino, dir->i_generation,
+ dir, 3000, tgt);
+
+ err = ll_new_node(dir, name, (char *)tgt, S_IFLNK | S_IRWXUGO,
+ 0, dchild, LUSTRE_OPC_SYMLINK);
+
+ if (!err)
+ ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_SYMLINK, 1);
+
RETURN(err);
}
-static int ll_link_raw(struct nameidata *srcnd, struct nameidata *tgtnd)
+static int ll_link_generic(struct inode *src, struct inode *dir,
+ struct qstr *name, struct dentry *dchild)
{
- struct inode *src = srcnd->dentry->d_inode;
- struct inode *dir = tgtnd->dentry->d_inode;
- struct ptlrpc_request *request = NULL;
struct ll_sb_info *sbi = ll_i2sbi(dir);
- struct mdc_op_data *op_data;
+ struct ptlrpc_request *request = NULL;
+ struct md_op_data *op_data;
int err;
- ENTRY;
+ 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, tgtnd->last.len, tgtnd->last.name);
+ dir->i_generation, dir, name->len, name->name);
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (op_data == NULL)
- RETURN(-ENOMEM);
+ op_data = ll_prep_md_op_data(NULL, src, dir, name->name, name->len,
+ 0, LUSTRE_OPC_ANY, NULL);
+ if (IS_ERR(op_data))
+ RETURN(PTR_ERR(op_data));
- ll_prepare_mdc_data(op_data, src, dir,
- (char *)tgtnd->last.name,
- tgtnd->last.len, 0);
-
err = md_link(sbi->ll_md_exp, op_data, &request);
- OBD_FREE(op_data, sizeof(*op_data));
- if (err == 0)
- ll_update_times(request, 0, dir);
+ ll_finish_md_op_data(op_data);
+ if (err)
+ GOTO(out, err);
+
+ ll_update_times(request, dir);
+ ll_stats_ops_tally(sbi, LPROC_LL_LINK, 1);
+ EXIT;
+out:
ptlrpc_req_finished(request);
RETURN(err);
}
+static int ll_mkdir_generic(struct inode *dir, struct qstr *name,
+ int mode, struct dentry *dchild)
-static int ll_mkdir_raw(struct nameidata *nd, int mode)
{
- struct inode *dir = nd->dentry->d_inode;
- struct ptlrpc_request *request = NULL;
- struct ll_sb_info *sbi = ll_i2sbi(dir);
- struct mdc_op_data *op_data;
- int err = -EMLINK;
+ int err;
ENTRY;
+
CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
- nd->last.len, nd->last.name, dir->i_ino, dir->i_generation, dir);
-
- mode = (mode & (S_IRWXUGO|S_ISVTX) & ~current->fs->umask) | S_IFDIR;
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (op_data == NULL)
- RETURN(-ENOMEM);
-
- ll_prepare_mdc_data(op_data, dir, NULL,
- (char *)nd->last.name,
- nd->last.len, 0);
-
- err = md_create(sbi->ll_md_exp, op_data, NULL, 0, mode,
- current->fsuid, current->fsgid, 0, &request);
- OBD_FREE(op_data, sizeof(*op_data));
- if (err == 0)
- ll_update_times(request, 0, dir);
- ptlrpc_req_finished(request);
+ name->len, name->name, dir->i_ino, dir->i_generation, dir);
+
+ if (!IS_POSIXACL(dir) || !exp_connect_umask(ll_i2mdexp(dir)))
+ mode &= ~cfs_curproc_umask();
+ mode = (mode & (S_IRWXUGO|S_ISVTX)) | S_IFDIR;
+ err = ll_new_node(dir, name, NULL, mode, 0, dchild, LUSTRE_OPC_MKDIR);
+
+ if (!err)
+ ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_MKDIR, 1);
+
RETURN(err);
}
-static int ll_rmdir_raw(struct nameidata *nd)
+/* Try to find the child dentry by its name.
+ If found, put the result fid into @fid. */
+static void ll_get_child_fid(struct inode * dir, struct qstr *name,
+ struct lu_fid *fid)
+{
+ struct dentry *parent, *child;
+
+ parent = ll_d_hlist_entry(dir->i_dentry, struct dentry, d_alias);
+ child = d_lookup(parent, name);
+ if (child) {
+ if (child->d_inode)
+ *fid = *ll_inode2fid(child->d_inode);
+ dput(child);
+ }
+}
+
+static int ll_rmdir_generic(struct inode *dir, struct dentry *dparent,
+ struct dentry *dchild, struct qstr *name)
{
- struct inode *dir = nd->dentry->d_inode;
struct ptlrpc_request *request = NULL;
- struct mdc_op_data *op_data;
+ struct md_op_data *op_data;
int rc;
-
ENTRY;
+
CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
- nd->last.len, nd->last.name, dir->i_ino,
- dir->i_generation, dir);
+ name->len, name->name, dir->i_ino, dir->i_generation, dir);
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (op_data == NULL)
- RETURN(-ENOMEM);
+ if (unlikely(ll_d_mountpoint(dparent, dchild, name)))
+ RETURN(-EBUSY);
- ll_prepare_mdc_data(op_data, dir, NULL,
- (char *)nd->last.name,
- nd->last.len, S_IFDIR);
-
+ op_data = ll_prep_md_op_data(NULL, dir, NULL, name->name, name->len,
+ S_IFDIR, LUSTRE_OPC_ANY, NULL);
+ if (IS_ERR(op_data))
+ RETURN(PTR_ERR(op_data));
+
+ ll_get_child_fid(dir, name, &op_data->op_fid3);
+ op_data->op_fid2 = op_data->op_fid3;
rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
- OBD_FREE(op_data, sizeof(*op_data));
- if (rc == 0)
- ll_update_times(request, 0, dir);
+ ll_finish_md_op_data(op_data);
+ if (rc == 0) {
+ ll_update_times(request, dir);
+ ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_RMDIR, 1);
+ }
+
ptlrpc_req_finished(request);
RETURN(rc);
}
-static int ll_unlink_raw(struct nameidata *nd)
+/**
+ * Remove dir entry
+ **/
+int ll_rmdir_entry(struct inode *dir, char *name, int namelen)
{
- struct inode *dir = nd->dentry->d_inode;
- struct ptlrpc_request *request = NULL;
- struct mdc_op_data *op_data;
+ struct ptlrpc_request *request = NULL;
+ struct md_op_data *op_data;
+ int rc;
+ ENTRY;
+
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
+ namelen, name, dir->i_ino, dir->i_generation, dir);
+
+ op_data = ll_prep_md_op_data(NULL, dir, NULL, name, strlen(name),
+ S_IFDIR, LUSTRE_OPC_ANY, NULL);
+ if (IS_ERR(op_data))
+ RETURN(PTR_ERR(op_data));
+ op_data->op_cli_flags |= CLI_RM_ENTRY;
+ rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
+ ll_finish_md_op_data(op_data);
+ if (rc == 0) {
+ ll_update_times(request, dir);
+ ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_RMDIR, 1);
+ }
+
+ ptlrpc_req_finished(request);
+ RETURN(rc);
+}
+
+int ll_objects_destroy(struct ptlrpc_request *request, struct inode *dir)
+{
+ struct mdt_body *body;
+ struct lov_mds_md *eadata;
+ struct lov_stripe_md *lsm = NULL;
+ struct obd_trans_info oti = { 0 };
+ struct obdo *oa;
+ struct obd_capa *oc = NULL;
int rc;
ENTRY;
- CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
- nd->last.len, nd->last.name, dir->i_ino,
- dir->i_generation, dir);
-
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (op_data == NULL)
- RETURN(-ENOMEM);
- ll_prepare_mdc_data(op_data, dir, NULL,
- (char *)nd->last.name, nd->last.len, 0);
- rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
- OBD_FREE(op_data, sizeof(*op_data));
- if (rc)
+
+ /* req is swabbed so this is safe */
+ body = req_capsule_server_get(&request->rq_pill, &RMF_MDT_BODY);
+ if (!(body->valid & OBD_MD_FLEASIZE))
+ RETURN(0);
+
+ if (body->eadatasize == 0) {
+ CERROR("OBD_MD_FLEASIZE set but eadatasize zero\n");
+ GOTO(out, rc = -EPROTO);
+ }
+
+ /* 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 = req_capsule_server_sized_get(&request->rq_pill, &RMF_MDT_MD,
+ body->eadatasize);
+ LASSERT(eadata != NULL);
+
+ rc = obd_unpackmd(ll_i2dtexp(dir), &lsm, eadata, body->eadatasize);
+ if (rc < 0) {
+ CERROR("obd_unpackmd: %d\n", rc);
GOTO(out, rc);
- ll_update_times(request, 0, dir);
- EXIT;
+ }
+ LASSERT(rc >= sizeof(*lsm));
+
+ OBDO_ALLOC(oa);
+ if (oa == NULL)
+ GOTO(out_free_memmd, rc = -ENOMEM);
+
+ oa->o_oi = lsm->lsm_oi;
+ 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 =
+ req_capsule_server_sized_get(&request->rq_pill,
+ &RMF_LOGCOOKIES,
+ 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 (body->valid & OBD_MD_FLOSSCAPA) {
+ rc = md_unpack_capa(ll_i2mdexp(dir), request, &RMF_CAPA2, &oc);
+ if (rc)
+ GOTO(out_free_memmd, rc);
+ }
+
+ rc = obd_destroy(NULL, ll_i2dtexp(dir), oa, lsm, &oti,
+ ll_i2mdexp(dir), oc);
+ capa_put(oc);
+ if (rc)
+ CERROR("obd destroy objid "DOSTID" error %d\n",
+ POSTID(&lsm->lsm_oi), rc);
+out_free_memmd:
+ obd_free_memmd(ll_i2dtexp(dir), &lsm);
+ OBDO_FREE(oa);
out:
+ return rc;
+}
+
+/* ll_unlink_generic() doesn't update the inode with the new link count.
+ * Instead, ll_ddelete() and ll_d_iput() will update it based upon if there
+ * is any lock existing. They will recycle dentries and inodes based upon locks
+ * too. b=20433 */
+static int ll_unlink_generic(struct inode *dir, struct dentry *dparent,
+ struct dentry *dchild, struct qstr *name)
+{
+ struct ptlrpc_request *request = NULL;
+ struct md_op_data *op_data;
+ int rc;
+ ENTRY;
+ CDEBUG(D_VFSTRACE, "VFS Op:name=%.*s,dir=%lu/%u(%p)\n",
+ name->len, name->name, dir->i_ino, dir->i_generation, dir);
+
+ /*
+ * XXX: unlink bind mountpoint maybe call to here,
+ * just check it as vfs_unlink does.
+ */
+ if (unlikely(ll_d_mountpoint(dparent, dchild, name)))
+ RETURN(-EBUSY);
+
+ op_data = ll_prep_md_op_data(NULL, dir, NULL, name->name,
+ name->len, 0, LUSTRE_OPC_ANY, NULL);
+ if (IS_ERR(op_data))
+ RETURN(PTR_ERR(op_data));
+
+ ll_get_child_fid(dir, name, &op_data->op_fid3);
+ op_data->op_fid2 = op_data->op_fid3;
+ rc = md_unlink(ll_i2sbi(dir)->ll_md_exp, op_data, &request);
+ ll_finish_md_op_data(op_data);
+ if (rc)
+ GOTO(out, rc);
+
+ ll_update_times(request, dir);
+ ll_stats_ops_tally(ll_i2sbi(dir), LPROC_LL_UNLINK, 1);
+
+ rc = ll_objects_destroy(request, dir);
+ out:
ptlrpc_req_finished(request);
- return rc;
+ RETURN(rc);
}
-static int ll_rename_raw(struct nameidata *srcnd, struct nameidata *tgtnd)
+static int ll_rename_generic(struct inode *src, struct dentry *src_dparent,
+ struct dentry *src_dchild, struct qstr *src_name,
+ struct inode *tgt, struct dentry *tgt_dparent,
+ struct dentry *tgt_dchild, struct qstr *tgt_name)
{
- struct inode *src = srcnd->dentry->d_inode;
- struct inode *tgt = tgtnd->dentry->d_inode;
struct ptlrpc_request *request = NULL;
struct ll_sb_info *sbi = ll_i2sbi(src);
- struct mdc_op_data *op_data;
+ struct md_op_data *op_data;
int err;
ENTRY;
-
- if (srcnd->mnt != tgtnd->mnt)
- RETURN(-EXDEV);
-
CDEBUG(D_VFSTRACE,"VFS Op:oldname=%.*s,src_dir=%lu/%u(%p),newname=%.*s,"
- "tgt_dir=%lu/%u(%p)\n", srcnd->last.len, srcnd->last.name,
- src->i_ino, src->i_generation, src, tgtnd->last.len,
- tgtnd->last.name, tgt->i_ino, tgt->i_generation, tgt);
-
- OBD_ALLOC(op_data, sizeof(*op_data));
- if (op_data == NULL)
- RETURN(-ENOMEM);
- ll_prepare_mdc_data(op_data, src, tgt, NULL, 0, 0);
- err = md_rename(sbi->ll_md_exp, op_data, (char *)srcnd->last.name,
- srcnd->last.len, (char *)tgtnd->last.name,
- tgtnd->last.len, &request);
- OBD_FREE(op_data, sizeof(*op_data));
+ "tgt_dir=%lu/%u(%p)\n", src_name->len, src_name->name,
+ src->i_ino, src->i_generation, src, tgt_name->len,
+ tgt_name->name, tgt->i_ino, tgt->i_generation, tgt);
+
+ if (unlikely(ll_d_mountpoint(src_dparent, src_dchild, src_name) ||
+ ll_d_mountpoint(tgt_dparent, tgt_dchild, tgt_name)))
+ RETURN(-EBUSY);
+
+ op_data = ll_prep_md_op_data(NULL, src, tgt, NULL, 0, 0,
+ LUSTRE_OPC_ANY, NULL);
+ if (IS_ERR(op_data))
+ RETURN(PTR_ERR(op_data));
+
+ ll_get_child_fid(src, src_name, &op_data->op_fid3);
+ ll_get_child_fid(tgt, tgt_name, &op_data->op_fid4);
+ err = md_rename(sbi->ll_md_exp, op_data,
+ src_name->name, src_name->len,
+ tgt_name->name, tgt_name->len, &request);
+ ll_finish_md_op_data(op_data);
if (!err) {
- ll_update_times(request, 0, src);
- ll_update_times(request, 0, tgt);
+ ll_update_times(request, src);
+ ll_update_times(request, tgt);
+ ll_stats_ops_tally(sbi, LPROC_LL_RENAME, 1);
+ err = ll_objects_destroy(request, src);
}
ptlrpc_req_finished(request);
+
RETURN(err);
}
-#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
-#define LLITE_IT_RAWOPS (IT_MKNOD|IT_MKDIR|IT_SYMLINK|IT_LINK|IT_UNLINK|IT_RMDIR|IT_RENAME)
-static int ll_rawop_from_intent(struct nameidata *nd)
+static int ll_mknod(struct inode *dir, struct dentry *dchild, ll_umode_t mode,
+ dev_t rdev)
{
- int error = 0;
+ return ll_mknod_generic(dir, &dchild->d_name, mode,
+ old_encode_dev(rdev), dchild);
+}
- if (!nd || !(nd->intent.open.op & LLITE_IT_RAWOPS))
- return 0;
+static int ll_unlink(struct inode * dir, struct dentry *dentry)
+{
+ return ll_unlink_generic(dir, NULL, dentry, &dentry->d_name);
+}
- switch (nd->intent.open.op) {
- case IT_MKNOD:
- error = ll_mknod_raw(nd, nd->intent.open.create_mode,
- nd->intent.open.create.dev);
- break;
- case IT_MKDIR:
- error = ll_mkdir_raw(nd, nd->intent.open.create_mode);
- break;
- case IT_RMDIR:
- error = ll_rmdir_raw(nd);
- break;
- case IT_UNLINK:
- error = ll_unlink_raw(nd);
- break;
- case IT_SYMLINK:
- LASSERT(nd->intent.open.create.link);
- error = ll_symlink_raw(nd, nd->intent.open.create.link);
- break;
- case IT_LINK:
- error = ll_link_raw(nd->intent.open.create.source_nd, nd);
- break;
- case IT_RENAME:
- LASSERT(nd->intent.open.create.source_nd);
- error = ll_rename_raw(nd->intent.open.create.source_nd, nd);
- break;
- default:
- LBUG();
- }
- if (error != -EOPNOTSUPP)
- nd->intent.open.flags |= IT_STATUS_RAW;
+static int ll_mkdir(struct inode *dir, struct dentry *dentry, ll_umode_t mode)
+{
+ return ll_mkdir_generic(dir, &dentry->d_name, mode, dentry);
+}
+
+static int ll_rmdir(struct inode *dir, struct dentry *dentry)
+{
+ return ll_rmdir_generic(dir, NULL, dentry, &dentry->d_name);
+}
+
+static int ll_symlink(struct inode *dir, struct dentry *dentry,
+ const char *oldname)
+{
+ return ll_symlink_generic(dir, &dentry->d_name, oldname, dentry);
+}
- return error;
+static int ll_link(struct dentry *old_dentry, struct inode *dir,
+ struct dentry *new_dentry)
+{
+ return ll_link_generic(old_dentry->d_inode, dir, &new_dentry->d_name,
+ new_dentry);
}
+
+static int ll_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry)
+{
+ int err;
+ err = ll_rename_generic(old_dir, NULL,
+ old_dentry, &old_dentry->d_name,
+ new_dir, NULL, new_dentry,
+ &new_dentry->d_name);
+ if (!err) {
+#ifndef HAVE_FS_RENAME_DOES_D_MOVE
+ if (!S_ISDIR(old_dentry->d_inode->i_mode))
#endif
+ d_move(old_dentry, new_dentry);
+ }
+ return err;
+}
struct inode_operations ll_dir_inode_operations = {
- .mknod = ll_mknod,
- .setattr = ll_setattr,
-#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 = ll_getattr,
- .endparentlookup = ll_rawop_from_intent,
+ .mknod = ll_mknod,
+#ifdef HAVE_IOP_ATOMIC_OPEN
+ .atomic_open = ll_atomic_open,
+#endif
+ .lookup = ll_lookup_nd,
+ .create = ll_create_nd,
+ /* We need all these non-raw things for NFSD, to not patch it. */
+ .unlink = ll_unlink,
+ .mkdir = ll_mkdir,
+ .rmdir = ll_rmdir,
+ .symlink = ll_symlink,
+ .link = ll_link,
+ .rename = ll_rename,
+ .setattr = ll_setattr,
+ .getattr = ll_getattr,
+ .permission = ll_inode_permission,
+ .setxattr = ll_setxattr,
+ .getxattr = ll_getxattr,
+ .listxattr = ll_listxattr,
+ .removexattr = ll_removexattr,
+#ifdef HAVE_IOP_GET_ACL
+ .get_acl = ll_get_acl,
+#endif
+};
+
+struct inode_operations ll_special_inode_operations = {
+ .setattr = ll_setattr,
+ .getattr = ll_getattr,
+ .permission = ll_inode_permission,
+ .setxattr = ll_setxattr,
+ .getxattr = ll_getxattr,
+ .listxattr = ll_listxattr,
+ .removexattr = ll_removexattr,
+#ifdef HAVE_IOP_GET_ACL
+ .get_acl = ll_get_acl,
#endif
- .setxattr = ll_setxattr,
- .getxattr = ll_getxattr,
- .listxattr = ll_listxattr,
- .removexattr = ll_removexattr,
- .permission = ll_inode_permission,
};
git://git.whamcloud.com / fs / lustre-release.git / blobdiff