}
path.mnt = mntget(pfmfs_mnt);
- path.dentry->d_op = &pfmfs_dentry_operations;
+ d_set_d_op(path.dentry, &pfmfs_dentry_operations);
d_add(path.dentry, inode);
file = alloc_file(&path, FMODE_READ, &pfm_file_ops);
*
* We need to do this before we release the directory semaphore.
*/
- dentry->d_op = &autofs_dentry_operations;
+ d_set_d_op(dentry, &autofs_dentry_operations);
dentry->d_flags |= DCACHE_AUTOFS_PENDING;
d_add(dentry, NULL);
struct smb_sb_info *server = server_from_dentry(dentry);
if (server->mnt->flags & SMB_MOUNT_CASE)
- dentry->d_op = &smbfs_dentry_operations_case;
+ d_set_d_op(dentry, &smbfs_dentry_operations_case);
else
- dentry->d_op = &smbfs_dentry_operations;
+ d_set_d_op(dentry, &smbfs_dentry_operations);
dentry->d_time = jiffies;
}
add_entry:
server = server_from_dentry(dentry);
if (server->mnt->flags & SMB_MOUNT_CASE)
- dentry->d_op = &smbfs_dentry_operations_case;
+ d_set_d_op(dentry, &smbfs_dentry_operations_case);
else
- dentry->d_op = &smbfs_dentry_operations;
+ d_set_d_op(dentry, &smbfs_dentry_operations);
d_add(dentry, inode);
smb_renew_times(dentry);
}
if (v9ses->cache)
- dentry->d_op = &v9fs_cached_dentry_operations;
+ d_set_d_op(dentry, &v9fs_cached_dentry_operations);
else
- dentry->d_op = &v9fs_dentry_operations;
+ d_set_d_op(dentry, &v9fs_dentry_operations);
d_instantiate(dentry, inode);
err = v9fs_fid_add(dentry, fid);
err);
goto error;
}
- dentry->d_op = &v9fs_cached_dentry_operations;
+ d_set_d_op(dentry, &v9fs_cached_dentry_operations);
d_instantiate(dentry, inode);
err = v9fs_fid_add(dentry, fid);
if (err < 0)
err = PTR_ERR(inode);
goto error;
}
- dentry->d_op = &v9fs_dentry_operations;
+ d_set_d_op(dentry, &v9fs_dentry_operations);
d_instantiate(dentry, inode);
}
/* Now set the ACL based on the default value */
err);
goto error;
}
- dentry->d_op = &v9fs_cached_dentry_operations;
+ d_set_d_op(dentry, &v9fs_cached_dentry_operations);
d_instantiate(dentry, inode);
err = v9fs_fid_add(dentry, fid);
if (err < 0)
err = PTR_ERR(inode);
goto error;
}
- dentry->d_op = &v9fs_dentry_operations;
+ d_set_d_op(dentry, &v9fs_dentry_operations);
d_instantiate(dentry, inode);
}
/* Now set the ACL based on the default value */
inst_out:
if (v9ses->cache)
- dentry->d_op = &v9fs_cached_dentry_operations;
+ d_set_d_op(dentry, &v9fs_cached_dentry_operations);
else
- dentry->d_op = &v9fs_dentry_operations;
+ d_set_d_op(dentry, &v9fs_dentry_operations);
d_add(dentry, inode);
return NULL;
err);
goto error;
}
- dentry->d_op = &v9fs_cached_dentry_operations;
+ d_set_d_op(dentry, &v9fs_cached_dentry_operations);
d_instantiate(dentry, inode);
err = v9fs_fid_add(dentry, fid);
if (err < 0)
err = PTR_ERR(inode);
goto error;
}
- dentry->d_op = &v9fs_dentry_operations;
+ d_set_d_op(dentry, &v9fs_dentry_operations);
d_instantiate(dentry, inode);
}
ihold(old_dentry->d_inode);
}
- dentry->d_op = old_dentry->d_op;
+ d_set_d_op(dentry, old_dentry->d_op);
d_instantiate(dentry, old_dentry->d_inode);
return err;
err);
goto error;
}
- dentry->d_op = &v9fs_cached_dentry_operations;
+ d_set_d_op(dentry, &v9fs_cached_dentry_operations);
d_instantiate(dentry, inode);
err = v9fs_fid_add(dentry, fid);
if (err < 0)
err = PTR_ERR(inode);
goto error;
}
- dentry->d_op = &v9fs_dentry_operations;
+ d_set_d_op(dentry, &v9fs_dentry_operations);
d_instantiate(dentry, inode);
}
/* Now set the ACL based on the default value */
struct object_info obj;
int error;
- dentry->d_op = &adfs_dentry_operations;
+ d_set_d_op(dentry, &adfs_dentry_operations);
lock_kernel();
error = adfs_dir_lookup_byname(dir, &dentry->d_name, &obj);
if (error == 0) {
adfs_error(sb, "get root inode failed\n");
goto error;
} else
- sb->s_root->d_op = &adfs_dentry_operations;
+ d_set_d_op(sb->s_root, &adfs_dentry_operations);
unlock_kernel();
return 0;
if (IS_ERR(inode))
return ERR_CAST(inode);
}
- dentry->d_op = AFFS_SB(sb)->s_flags & SF_INTL ? &affs_intl_dentry_operations : &affs_dentry_operations;
+ d_set_d_op(dentry, AFFS_SB(sb)->s_flags & SF_INTL ? &affs_intl_dentry_operations : &affs_dentry_operations);
d_add(dentry, inode);
return NULL;
}
printk(KERN_ERR "AFFS: Get root inode failed\n");
goto out_error;
}
- sb->s_root->d_op = &affs_dentry_operations;
+ d_set_d_op(sb->s_root, &affs_dentry_operations);
pr_debug("AFFS: s_flags=%lX\n",sb->s_flags);
return 0;
}
success:
- dentry->d_op = &afs_fs_dentry_operations;
+ d_set_d_op(dentry, &afs_fs_dentry_operations);
d_add(dentry, inode);
_leave(" = 0 { vn=%u u=%u } -> { ino=%lu v=%llu }",
*/
ihold(anon_inode_inode);
- path.dentry->d_op = &anon_inodefs_dentry_operations;
+ d_set_d_op(path.dentry, &anon_inodefs_dentry_operations);
d_instantiate(path.dentry, anon_inode_inode);
error = -ENFILE;
goto fail_iput;
pipe = NULL;
- root->d_op = &autofs4_sb_dentry_operations;
+ d_set_d_op(root, &autofs4_sb_dentry_operations);
root->d_fsdata = ino;
/* Can this call block? */
* we check for the hashed dentry and return the newly
* hashed dentry.
*/
- dentry->d_op = &autofs4_root_dentry_operations;
+ d_set_d_op(dentry, &autofs4_root_dentry_operations);
/*
* And we need to ensure that the same dentry is used for
d_add(dentry, inode);
if (dir == dir->i_sb->s_root->d_inode)
- dentry->d_op = &autofs4_root_dentry_operations;
+ d_set_d_op(dentry, &autofs4_root_dentry_operations);
else
- dentry->d_op = &autofs4_dentry_operations;
+ d_set_d_op(dentry, &autofs4_dentry_operations);
dentry->d_fsdata = ino;
ino->dentry = dget(dentry);
d_add(dentry, inode);
if (dir == dir->i_sb->s_root->d_inode)
- dentry->d_op = &autofs4_root_dentry_operations;
+ d_set_d_op(dentry, &autofs4_root_dentry_operations);
else
- dentry->d_op = &autofs4_dentry_operations;
+ d_set_d_op(dentry, &autofs4_dentry_operations);
dentry->d_fsdata = ino;
ino->dentry = dget(dentry);
dentry = d_obtain_alias(inode);
if (!IS_ERR(dentry))
- dentry->d_op = &btrfs_dentry_operations;
+ d_set_d_op(dentry, &btrfs_dentry_operations);
return dentry;
fail:
srcu_read_unlock(&fs_info->subvol_srcu, index);
key.offset = 0;
dentry = d_obtain_alias(btrfs_iget(root->fs_info->sb, &key, root, NULL));
if (!IS_ERR(dentry))
- dentry->d_op = &btrfs_dentry_operations;
+ d_set_d_op(dentry, &btrfs_dentry_operations);
return dentry;
fail:
btrfs_free_path(path);
int index;
int ret;
- dentry->d_op = &btrfs_dentry_operations;
+ d_set_d_op(dentry, &btrfs_dentry_operations);
if (dentry->d_name.len > BTRFS_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
if (dentry->d_parent == NULL || /* nfs fh_to_dentry */
ceph_snap(dentry->d_parent->d_inode) == CEPH_NOSNAP)
- dentry->d_op = &ceph_dentry_ops;
+ d_set_d_op(dentry, &ceph_dentry_ops);
else if (ceph_snap(dentry->d_parent->d_inode) == CEPH_SNAPDIR)
- dentry->d_op = &ceph_snapdir_dentry_ops;
+ d_set_d_op(dentry, &ceph_snapdir_dentry_ops);
else
- dentry->d_op = &ceph_snap_dentry_ops;
+ d_set_d_op(dentry, &ceph_snap_dentry_ops);
di = kmem_cache_alloc(ceph_dentry_cachep, GFP_NOFS | __GFP_ZERO);
if (!di)
struct inode *newinode)
{
if (tcon->nocase)
- direntry->d_op = &cifs_ci_dentry_ops;
+ d_set_d_op(direntry, &cifs_ci_dentry_ops);
else
- direntry->d_op = &cifs_dentry_ops;
+ d_set_d_op(direntry, &cifs_dentry_ops);
d_instantiate(direntry, newinode);
}
rc = cifs_get_inode_info_unix(&newinode, full_path,
inode->i_sb, xid);
if (pTcon->nocase)
- direntry->d_op = &cifs_ci_dentry_ops;
+ d_set_d_op(direntry, &cifs_ci_dentry_ops);
else
- direntry->d_op = &cifs_dentry_ops;
+ d_set_d_op(direntry, &cifs_dentry_ops);
if (rc == 0)
d_instantiate(direntry, newinode);
if ((rc == 0) && (newInode != NULL)) {
if (pTcon->nocase)
- direntry->d_op = &cifs_ci_dentry_ops;
+ d_set_d_op(direntry, &cifs_ci_dentry_ops);
else
- direntry->d_op = &cifs_dentry_ops;
+ d_set_d_op(direntry, &cifs_dentry_ops);
d_add(direntry, newInode);
if (posix_open) {
filp = lookup_instantiate_filp(nd, direntry,
rc = 0;
direntry->d_time = jiffies;
if (pTcon->nocase)
- direntry->d_op = &cifs_ci_dentry_ops;
+ d_set_d_op(direntry, &cifs_ci_dentry_ops);
else
- direntry->d_op = &cifs_dentry_ops;
+ d_set_d_op(direntry, &cifs_dentry_ops);
d_add(direntry, NULL);
/* if it was once a directory (but how can we tell?) we could do
shrink_dcache_parent(direntry); */
to set uid/gid */
inc_nlink(inode);
if (pTcon->nocase)
- direntry->d_op = &cifs_ci_dentry_ops;
+ d_set_d_op(direntry, &cifs_ci_dentry_ops);
else
- direntry->d_op = &cifs_dentry_ops;
+ d_set_d_op(direntry, &cifs_dentry_ops);
cifs_unix_basic_to_fattr(&fattr, pInfo, cifs_sb);
cifs_fill_uniqueid(inode->i_sb, &fattr);
inode->i_sb, xid, NULL);
if (pTcon->nocase)
- direntry->d_op = &cifs_ci_dentry_ops;
+ d_set_d_op(direntry, &cifs_ci_dentry_ops);
else
- direntry->d_op = &cifs_dentry_ops;
+ d_set_d_op(direntry, &cifs_dentry_ops);
d_instantiate(direntry, newinode);
/* setting nlink not necessary except in cases where we
* failed to get it from the server or was set bogus */
rc);
} else {
if (pTcon->nocase)
- direntry->d_op = &cifs_ci_dentry_ops;
+ d_set_d_op(direntry, &cifs_ci_dentry_ops);
else
- direntry->d_op = &cifs_dentry_ops;
+ d_set_d_op(direntry, &cifs_dentry_ops);
d_instantiate(direntry, newinode);
}
}
}
if (cifs_sb_master_tcon(CIFS_SB(sb))->nocase)
- dentry->d_op = &cifs_ci_dentry_ops;
+ d_set_d_op(dentry, &cifs_ci_dentry_ops);
else
- dentry->d_op = &cifs_dentry_ops;
+ d_set_d_op(dentry, &cifs_dentry_ops);
alias = d_materialise_unique(dentry, inode);
if (alias != NULL) {
return ERR_PTR(error);
exit:
- entry->d_op = &coda_dentry_operations;
+ d_set_d_op(entry, &coda_dentry_operations);
if (inode && (type & CODA_NOCACHE))
coda_flag_inode(inode, C_VATTR | C_PURGE);
return error;
}
- dentry->d_op = &configfs_dentry_ops;
+ d_set_d_op(dentry, &configfs_dentry_ops);
d_rehash(dentry);
return 0;
*/
if (dentry->d_name.len > NAME_MAX)
return ERR_PTR(-ENAMETOOLONG);
- dentry->d_op = &configfs_dentry_ops;
+ d_set_d_op(dentry, &configfs_dentry_ops);
d_add(dentry, NULL);
return NULL;
}
ret = -ENOMEM;
child = d_alloc(parent, &name);
if (child) {
- child->d_op = &configfs_dentry_ops;
+ d_set_d_op(child, &configfs_dentry_ops);
d_add(child, NULL);
ret = configfs_attach_group(&parent_group->cg_item,
err = -ENOMEM;
dentry = d_alloc(configfs_sb->s_root, &name);
if (dentry) {
- dentry->d_op = &configfs_dentry_ops;
+ d_set_d_op(dentry, &configfs_dentry_ops);
d_add(dentry, NULL);
err = configfs_attach_group(sd->s_element, &group->cg_item,
return;
}
- if (dentry->d_op && dentry->d_op->d_delete) {
+ if (dentry->d_flags & DCACHE_OP_DELETE) {
if (dentry->d_op->d_delete(dentry))
goto kill_it;
}
}
EXPORT_SYMBOL(d_alloc_name);
+void d_set_d_op(struct dentry *dentry, const struct dentry_operations *op)
+{
+ BUG_ON(dentry->d_op);
+ BUG_ON(dentry->d_flags & (DCACHE_OP_HASH |
+ DCACHE_OP_COMPARE |
+ DCACHE_OP_REVALIDATE |
+ DCACHE_OP_DELETE ));
+ dentry->d_op = op;
+ if (!op)
+ return;
+ if (op->d_hash)
+ dentry->d_flags |= DCACHE_OP_HASH;
+ if (op->d_compare)
+ dentry->d_flags |= DCACHE_OP_COMPARE;
+ if (op->d_revalidate)
+ dentry->d_flags |= DCACHE_OP_REVALIDATE;
+ if (op->d_delete)
+ dentry->d_flags |= DCACHE_OP_DELETE;
+
+}
+EXPORT_SYMBOL(d_set_d_op);
+
static void __d_instantiate(struct dentry *dentry, struct inode *inode)
{
spin_lock(&dentry->d_lock);
*/
if (read_seqcount_retry(&dentry->d_seq, *seq))
goto seqretry;
- if (parent->d_op && parent->d_op->d_compare) {
+ if (parent->d_flags & DCACHE_OP_COMPARE) {
if (parent->d_op->d_compare(parent, *inode,
dentry, i,
tlen, tname, name))
*/
tlen = dentry->d_name.len;
tname = dentry->d_name.name;
- if (parent->d_op && parent->d_op->d_compare) {
+ if (parent->d_flags & DCACHE_OP_COMPARE) {
if (parent->d_op->d_compare(parent, parent->d_inode,
dentry, dentry->d_inode,
tlen, tname, name))
* routine may choose to leave the hash value unchanged.
*/
name->hash = full_name_hash(name->name, name->len);
- if (dir->d_op && dir->d_op->d_hash) {
+ if (dir->d_flags & DCACHE_OP_HASH) {
if (dir->d_op->d_hash(dir, dir->d_inode, name) < 0)
goto out;
}
struct qstr lower_name;
int rc = 0;
- ecryptfs_dentry->d_op = &ecryptfs_dops;
+ d_set_d_op(ecryptfs_dentry, &ecryptfs_dops);
if ((ecryptfs_dentry->d_name.len == 1
&& !strcmp(ecryptfs_dentry->d_name.name, "."))
|| (ecryptfs_dentry->d_name.len == 2
if (special_file(lower_inode->i_mode))
init_special_inode(inode, lower_inode->i_mode,
lower_inode->i_rdev);
- dentry->d_op = &ecryptfs_dops;
+ d_set_d_op(dentry, &ecryptfs_dops);
fsstack_copy_attr_all(inode, lower_inode);
/* This size will be overwritten for real files w/ headers and
* other metadata */
deactivate_locked_super(s);
goto out;
}
- s->s_root->d_op = &ecryptfs_dops;
+ d_set_d_op(s->s_root, &ecryptfs_dops);
s->s_root->d_sb = s;
s->s_root->d_parent = s->s_root;
*/
result = d_obtain_alias(inode);
if (!IS_ERR(result))
- result->d_op = sb->s_root->d_op;
+ d_set_d_op(result, sb->s_root->d_op);
return result;
}
parent = d_obtain_alias(inode);
if (!IS_ERR(parent))
- parent->d_op = sb->s_root->d_op;
+ d_set_d_op(parent, sb->s_root->d_op);
out:
unlock_super(sb);
}
out:
unlock_super(sb);
- dentry->d_op = &msdos_dentry_operations;
+ d_set_d_op(dentry, &msdos_dentry_operations);
dentry = d_splice_alias(inode, dentry);
if (dentry)
- dentry->d_op = &msdos_dentry_operations;
+ d_set_d_op(dentry, &msdos_dentry_operations);
return dentry;
error:
}
sb->s_flags |= MS_NOATIME;
- sb->s_root->d_op = &msdos_dentry_operations;
+ d_set_d_op(sb->s_root, &msdos_dentry_operations);
unlock_super(sb);
return 0;
}
out:
unlock_super(sb);
- dentry->d_op = sb->s_root->d_op;
+ d_set_d_op(dentry, sb->s_root->d_op);
dentry->d_time = dentry->d_parent->d_inode->i_version;
dentry = d_splice_alias(inode, dentry);
if (dentry) {
- dentry->d_op = sb->s_root->d_op;
+ d_set_d_op(dentry, sb->s_root->d_op);
dentry->d_time = dentry->d_parent->d_inode->i_version;
}
return dentry;
}
if (MSDOS_SB(sb)->options.name_check != 's')
- sb->s_root->d_op = &vfat_ci_dentry_ops;
+ d_set_d_op(sb->s_root, &vfat_ci_dentry_ops);
else
- sb->s_root->d_op = &vfat_dentry_ops;
+ d_set_d_op(sb->s_root, &vfat_dentry_ops);
unlock_super(sb);
return 0;
}
entry = newent ? newent : entry;
- entry->d_op = &fuse_dentry_operations;
+ d_set_d_op(entry, &fuse_dentry_operations);
if (outarg_valid)
fuse_change_entry_timeout(entry, &outarg);
else
entry = d_obtain_alias(inode);
if (!IS_ERR(entry) && get_node_id(inode) != FUSE_ROOT_ID) {
- entry->d_op = &fuse_dentry_operations;
+ d_set_d_op(entry, &fuse_dentry_operations);
fuse_invalidate_entry_cache(entry);
}
parent = d_obtain_alias(inode);
if (!IS_ERR(parent) && get_node_id(inode) != FUSE_ROOT_ID) {
- parent->d_op = &fuse_dentry_operations;
+ d_set_d_op(parent, &fuse_dentry_operations);
fuse_invalidate_entry_cache(parent);
}
dentry = d_obtain_alias(gfs2_lookupi(child->d_inode, &gfs2_qdotdot, 1));
if (!IS_ERR(dentry))
- dentry->d_op = &gfs2_dops;
+ d_set_d_op(dentry, &gfs2_dops);
return dentry;
}
out_inode:
dentry = d_obtain_alias(inode);
if (!IS_ERR(dentry))
- dentry->d_op = &gfs2_dops;
+ d_set_d_op(dentry, &gfs2_dops);
return dentry;
}
iput(inode);
return -ENOMEM;
}
- dentry->d_op = &gfs2_dops;
+ d_set_d_op(dentry, &gfs2_dops);
*dptr = dentry;
return 0;
}
{
struct inode *inode = NULL;
- dentry->d_op = &gfs2_dops;
+ d_set_d_op(dentry, &gfs2_dops);
inode = gfs2_lookupi(dir, &dentry->d_name, 0);
if (inode && IS_ERR(inode))
struct inode *inode = NULL;
int res;
- dentry->d_op = &hfs_dentry_operations;
+ d_set_d_op(dentry, &hfs_dentry_operations);
hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
hfs_cat_build_key(dir->i_sb, fd.search_key, dir->i_ino, &dentry->d_name);
if (!sb->s_root)
goto bail_iput;
- sb->s_root->d_op = &hfs_dentry_operations;
+ d_set_d_op(sb->s_root, &hfs_dentry_operations);
/* everything's okay */
return 0;
sb = dir->i_sb;
- dentry->d_op = &hfsplus_dentry_operations;
+ d_set_d_op(dentry, &hfsplus_dentry_operations);
dentry->d_fsdata = NULL;
hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);
hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, &dentry->d_name);
err = -ENOMEM;
goto cleanup;
}
- sb->s_root->d_op = &hfsplus_dentry_operations;
+ d_set_d_op(sb->s_root, &hfsplus_dentry_operations);
str.len = sizeof(HFSP_HIDDENDIR_NAME) - 1;
str.name = HFSP_HIDDENDIR_NAME;
goto out_put;
d_add(dentry, inode);
- dentry->d_op = &hostfs_dentry_ops;
+ d_set_d_op(dentry, &hostfs_dentry_ops);
return NULL;
out_put:
void hpfs_set_dentry_operations(struct dentry *dentry)
{
- dentry->d_op = &hpfs_dentry_operations;
+ d_set_d_op(dentry, &hpfs_dentry_operations);
}
table += 2;
if (opt.check == 'r')
table++;
- s->s_root->d_op = &isofs_dentry_ops[table];
+ d_set_d_op(s->s_root, &isofs_dentry_ops[table]);
kfree(opt.iocharset);
struct inode *inode;
struct page *page;
- dentry->d_op = dir->i_sb->s_root->d_op;
+ d_set_d_op(dentry, dir->i_sb->s_root->d_op);
page = alloc_page(GFP_USER);
if (!page)
jfs_info("jfs_lookup: name = %s", name);
if (JFS_SBI(dip->i_sb)->mntflag & JFS_OS2)
- dentry->d_op = &jfs_ci_dentry_operations;
+ d_set_d_op(dentry, &jfs_ci_dentry_operations);
if ((name[0] == '.') && (len == 1))
inum = dip->i_ino;
dentry = d_splice_alias(ip, dentry);
if (dentry && (JFS_SBI(dip->i_sb)->mntflag & JFS_OS2))
- dentry->d_op = &jfs_ci_dentry_operations;
+ d_set_d_op(dentry, &jfs_ci_dentry_operations);
return dentry;
}
goto out_no_root;
if (sbi->mntflag & JFS_OS2)
- sb->s_root->d_op = &jfs_ci_dentry_operations;
+ d_set_d_op(sb->s_root, &jfs_ci_dentry_operations);
/* logical blocks are represented by 40 bits in pxd_t, etc. */
sb->s_maxbytes = ((u64) sb->s_blocksize) << 40;
if (dentry->d_name.len > NAME_MAX)
return ERR_PTR(-ENAMETOOLONG);
- dentry->d_op = &simple_dentry_operations;
+ d_set_d_op(dentry, &simple_dentry_operations);
d_add(dentry, NULL);
return NULL;
}
struct inode * inode = NULL;
ino_t ino;
- dentry->d_op = dir->i_sb->s_root->d_op;
+ d_set_d_op(dentry, dir->i_sb->s_root->d_op);
if (dentry->d_name.len > minix_sb(dir->i_sb)->s_namelen)
return ERR_PTR(-ENAMETOOLONG);
return dentry;
}
+static inline int need_reval_dot(struct dentry *dentry)
+{
+ if (likely(!(dentry->d_flags & DCACHE_OP_REVALIDATE)))
+ return 0;
+
+ if (likely(!(dentry->d_sb->s_type->fs_flags & FS_REVAL_DOT)))
+ return 0;
+
+ return 1;
+}
+
/*
* force_reval_path - force revalidation of a dentry
*
/*
* only check on filesystems where it's possible for the dentry to
- * become stale. It's assumed that if this flag is set then the
- * d_revalidate op will also be defined.
+ * become stale.
*/
- if (!(dentry->d_sb->s_type->fs_flags & FS_REVAL_DOT))
+ if (!need_reval_dot(dentry))
return 0;
status = dentry->d_op->d_revalidate(dentry, nd);
* See if the low-level filesystem might want
* to use its own hash..
*/
- if (parent->d_op && parent->d_op->d_hash) {
+ if (unlikely(parent->d_flags & DCACHE_OP_HASH)) {
int err = parent->d_op->d_hash(parent, nd->inode, name);
if (err < 0)
return err;
return -ECHILD;
nd->seq = seq;
- if (dentry->d_op && dentry->d_op->d_revalidate) {
+ if (dentry->d_flags & DCACHE_OP_REVALIDATE) {
/* We commonly drop rcu-walk here */
if (nameidata_dentry_drop_rcu(nd, dentry))
return -ECHILD;
if (!dentry)
goto need_lookup;
found:
- if (dentry->d_op && dentry->d_op->d_revalidate)
+ if (dentry->d_flags & DCACHE_OP_REVALIDATE)
goto need_revalidate;
done:
path->mnt = mnt;
* We bypassed the ordinary revalidation routines.
* We may need to check the cached dentry for staleness.
*/
- if (nd->path.dentry && nd->path.dentry->d_sb &&
- (nd->path.dentry->d_sb->s_type->fs_flags & FS_REVAL_DOT)) {
+ if (need_reval_dot(nd->path.dentry)) {
if (nameidata_drop_rcu_maybe(nd))
return -ECHILD;
err = -ESTALE;
* See if the low-level filesystem might want
* to use its own hash..
*/
- if (base->d_op && base->d_op->d_hash) {
+ if (base->d_flags & DCACHE_OP_HASH) {
err = base->d_op->d_hash(base, inode, name);
dentry = ERR_PTR(err);
if (err < 0)
*/
dentry = d_lookup(base, name);
- if (dentry && dentry->d_op && dentry->d_op->d_revalidate)
+ if (dentry && (dentry->d_flags & DCACHE_OP_REVALIDATE))
dentry = do_revalidate(dentry, nd);
if (!dentry)
follow_dotdot(nd);
dir = nd->path.dentry;
case LAST_DOT:
- if (nd->path.mnt->mnt_sb->s_type->fs_flags & FS_REVAL_DOT) {
+ if (need_reval_dot(dir)) {
if (!dir->d_op->d_revalidate(dir, nd)) {
error = -ESTALE;
goto exit;
entry->ino = iunique(dir->i_sb, 2);
inode = ncp_iget(dir->i_sb, entry);
if (inode) {
- newdent->d_op = &ncp_dentry_operations;
+ d_set_d_op(newdent, &ncp_dentry_operations);
d_instantiate(newdent, inode);
if (!hashed)
d_rehash(newdent);
if (inode) {
ncp_new_dentry(dentry);
add_entry:
- dentry->d_op = &ncp_dentry_operations;
+ d_set_d_op(dentry, &ncp_dentry_operations);
d_add(dentry, inode);
error = 0;
}
sb->s_root = d_alloc_root(root_inode);
if (!sb->s_root)
goto out_no_root;
- sb->s_root->d_op = &ncp_root_dentry_operations;
+ d_set_d_op(sb->s_root, &ncp_root_dentry_operations);
return 0;
out_no_root:
if (dentry == NULL)
return;
- dentry->d_op = NFS_PROTO(dir)->dentry_ops;
+ d_set_d_op(dentry, NFS_PROTO(dir)->dentry_ops);
inode = nfs_fhget(dentry->d_sb, entry->fh, entry->fattr);
if (IS_ERR(inode))
goto out;
if (dentry->d_name.len > NFS_SERVER(dir)->namelen)
goto out;
- dentry->d_op = NFS_PROTO(dir)->dentry_ops;
+ d_set_d_op(dentry, NFS_PROTO(dir)->dentry_ops);
/*
* If we're doing an exclusive create, optimize away the lookup
res = ERR_PTR(-ENAMETOOLONG);
goto out;
}
- dentry->d_op = NFS_PROTO(dir)->dentry_ops;
+ d_set_d_op(dentry, NFS_PROTO(dir)->dentry_ops);
/* Let vfs_create() deal with O_EXCL. Instantiate, but don't hash
* the dentry. */
security_d_instantiate(ret, inode);
if (ret->d_op == NULL)
- ret->d_op = server->nfs_client->rpc_ops->dentry_ops;
+ d_set_d_op(ret, server->nfs_client->rpc_ops->dentry_ops);
out:
nfs_free_fattr(fsinfo.fattr);
return ret;
security_d_instantiate(ret, inode);
if (ret->d_op == NULL)
- ret->d_op = server->nfs_client->rpc_ops->dentry_ops;
+ d_set_d_op(ret, server->nfs_client->rpc_ops->dentry_ops);
out:
nfs_free_fattr(fattr);
result = d_obtain_alias(inode);
if (!IS_ERR(result))
- result->d_op = &ocfs2_dentry_ops;
+ d_set_d_op(result, &ocfs2_dentry_ops);
else
mlog_errno(PTR_ERR(result));
parent = d_obtain_alias(ocfs2_iget(OCFS2_SB(dir->i_sb), blkno, 0, 0));
if (!IS_ERR(parent))
- parent->d_op = &ocfs2_dentry_ops;
+ d_set_d_op(parent, &ocfs2_dentry_ops);
bail_unlock:
ocfs2_inode_unlock(dir, 0);
spin_unlock(&oi->ip_lock);
bail_add:
- dentry->d_op = &ocfs2_dentry_ops;
+ d_set_d_op(dentry, &ocfs2_dentry_ops);
ret = d_splice_alias(inode, dentry);
if (inode) {
mlog_errno(status);
goto leave;
}
- dentry->d_op = &ocfs2_dentry_ops;
+ d_set_d_op(dentry, &ocfs2_dentry_ops);
status = ocfs2_add_entry(handle, dentry, inode,
OCFS2_I(inode)->ip_blkno, parent_fe_bh,
}
ihold(inode);
- dentry->d_op = &ocfs2_dentry_ops;
+ d_set_d_op(dentry, &ocfs2_dentry_ops);
d_instantiate(dentry, inode);
out_commit:
mlog_errno(status);
goto bail;
}
- dentry->d_op = &ocfs2_dentry_ops;
+ d_set_d_op(dentry, &ocfs2_dentry_ops);
status = ocfs2_add_entry(handle, dentry, inode,
le64_to_cpu(fe->i_blkno), parent_fe_bh,
goto out_commit;
}
- dentry->d_op = &ocfs2_dentry_ops;
+ d_set_d_op(dentry, &ocfs2_dentry_ops);
d_instantiate(dentry, inode);
status = 0;
out_commit:
goto err_inode;
path.mnt = mntget(pipe_mnt);
- path.dentry->d_op = &pipefs_dentry_operations;
+ d_set_d_op(path.dentry, &pipefs_dentry_operations);
d_instantiate(path.dentry, inode);
err = -ENFILE;
inode->i_op = &proc_pid_link_inode_operations;
inode->i_size = 64;
ei->op.proc_get_link = proc_fd_link;
- dentry->d_op = &tid_fd_dentry_operations;
+ d_set_d_op(dentry, &tid_fd_dentry_operations);
d_add(dentry, inode);
/* Close the race of the process dying before we return the dentry */
if (tid_fd_revalidate(dentry, NULL))
ei->fd = fd;
inode->i_mode = S_IFREG | S_IRUSR;
inode->i_fop = &proc_fdinfo_file_operations;
- dentry->d_op = &tid_fd_dentry_operations;
+ d_set_d_op(dentry, &tid_fd_dentry_operations);
d_add(dentry, inode);
/* Close the race of the process dying before we return the dentry */
if (tid_fd_revalidate(dentry, NULL))
if (p->fop)
inode->i_fop = p->fop;
ei->op = p->op;
- dentry->d_op = &pid_dentry_operations;
+ d_set_d_op(dentry, &pid_dentry_operations);
d_add(dentry, inode);
/* Close the race of the process dying before we return the dentry */
if (pid_revalidate(dentry, NULL))
if (p->fop)
inode->i_fop = p->fop;
ei->op = p->op;
- dentry->d_op = &proc_base_dentry_operations;
+ d_set_d_op(dentry, &proc_base_dentry_operations);
d_add(dentry, inode);
error = NULL;
out:
inode->i_nlink = 2 + pid_entry_count_dirs(tgid_base_stuff,
ARRAY_SIZE(tgid_base_stuff));
- dentry->d_op = &pid_dentry_operations;
+ d_set_d_op(dentry, &pid_dentry_operations);
d_add(dentry, inode);
/* Close the race of the process dying before we return the dentry */
inode->i_nlink = 2 + pid_entry_count_dirs(tid_base_stuff,
ARRAY_SIZE(tid_base_stuff));
- dentry->d_op = &pid_dentry_operations;
+ d_set_d_op(dentry, &pid_dentry_operations);
d_add(dentry, inode);
/* Close the race of the process dying before we return the dentry */
out_unlock:
if (inode) {
- dentry->d_op = &proc_dentry_operations;
+ d_set_d_op(dentry, &proc_dentry_operations);
d_add(dentry, inode);
return NULL;
}
goto out;
err = NULL;
- dentry->d_op = &proc_sys_dentry_operations;
+ d_set_d_op(dentry, &proc_sys_dentry_operations);
d_add(dentry, inode);
out:
dput(child);
return -ENOMEM;
} else {
- child->d_op = &proc_sys_dentry_operations;
+ d_set_d_op(child, &proc_sys_dentry_operations);
d_add(child, inode);
}
} else {
strlen(PRIVROOT_NAME));
if (!IS_ERR(dentry)) {
REISERFS_SB(s)->priv_root = dentry;
- dentry->d_op = &xattr_lookup_poison_ops;
+ d_set_d_op(dentry, &xattr_lookup_poison_ops);
if (dentry->d_inode)
dentry->d_inode->i_flags |= S_PRIVATE;
} else
/* instantiate and hash dentry */
ret = d_find_alias(inode);
if (!ret) {
- dentry->d_op = &sysfs_dentry_ops;
+ d_set_d_op(dentry, &sysfs_dentry_ops);
dentry->d_fsdata = sysfs_get(sd);
d_add(dentry, inode);
} else {
struct inode * inode = NULL;
ino_t ino;
- dentry->d_op = dir->i_sb->s_root->d_op;
+ d_set_d_op(dentry, dir->i_sb->s_root->d_op);
if (dentry->d_name.len > SYSV_NAMELEN)
return ERR_PTR(-ENAMETOOLONG);
ino = sysv_inode_by_name(dentry);
if (sbi->s_forced_ro)
sb->s_flags |= MS_RDONLY;
if (sbi->s_truncate)
- sb->s_root->d_op = &sysv_dentry_operations;
+ d_set_d_op(sb->s_root, &sysv_dentry_operations);
return 1;
}
#define DCACHE_GENOCIDE 0x0200
#define DCACHE_MOUNTED 0x0400 /* is a mountpoint */
+#define DCACHE_OP_HASH 0x1000
+#define DCACHE_OP_COMPARE 0x2000
+#define DCACHE_OP_REVALIDATE 0x4000
+#define DCACHE_OP_DELETE 0x8000
+
extern spinlock_t dcache_inode_lock;
extern seqlock_t rename_lock;
extern void __d_drop(struct dentry *dentry);
extern void d_drop(struct dentry *dentry);
extern void d_delete(struct dentry *);
+extern void d_set_d_op(struct dentry *dentry, const struct dentry_operations *op);
/* allocate/de-allocate */
extern struct dentry * d_alloc(struct dentry *, const struct qstr *);
if (dentry->d_name.len > NAME_MAX)
return ERR_PTR(-ENAMETOOLONG);
- dentry->d_op = &cgroup_dentry_operations;
+ d_set_d_op(dentry, &cgroup_dentry_operations);
d_add(dentry, NULL);
return NULL;
}
}
path.mnt = mntget(sock_mnt);
- path.dentry->d_op = &sockfs_dentry_operations;
+ d_set_d_op(path.dentry, &sockfs_dentry_operations);
d_instantiate(path.dentry, SOCK_INODE(sock));
SOCK_INODE(sock)->i_fop = &socket_file_ops;
}
}
if (!dentry->d_inode)
- dentry->d_op = &rpc_dentry_operations;
+ d_set_d_op(dentry, &rpc_dentry_operations);
out_err:
return dentry;
}
projects / linux-flexiantxendom0-natty.git / commitdiff