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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  xfs: Fix build breakage in xfs_iops.c when CONFIG_FS_POSIX_ACL is not set
  VFS: Reorganise shrink_dcache_for_umount_subtree() after demise of dcache_lock
  VFS: Remove dentry->d_lock locking from shrink_dcache_for_umount_subtree()
  VFS: Remove detached-dentry counter from shrink_dcache_for_umount_subtree()
  switch posix_acl_chmod() to umode_t
  switch posix_acl_from_mode() to umode_t
  switch posix_acl_equiv_mode() to umode_t *
  switch posix_acl_create() to umode_t *
  block: initialise bd_super in bdget()
  vfs: avoid call to inode_lru_list_del() if possible
  vfs: avoid taking inode_hash_lock on pipes and sockets
  vfs: conditionally call inode_wb_list_del()
  VFS: Fix automount for negative autofs dentries
  Btrfs: load the key from the dir item in readdir into a fake dentry
  devtmpfs: missing initialialization in never-hit case
  hppfs: missing include
This commit is contained in:
Linus Torvalds
2011-08-01 13:48:31 -10:00
parent 12ff47e7f5 206d440f64
commit 1b8e94993c
31 changed files with 161 additions and 150 deletions
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10
fs/btrfs/acl.c
View File

@@ -111,7 +111,6 @@ static int btrfs_set_acl(struct btrfs_trans_handle *trans,
int ret, size = 0;
const char *name;
char *value = NULL;
mode_t mode;
if (acl) {
ret = posix_acl_valid(acl);
@@ -122,13 +121,11 @@ static int btrfs_set_acl(struct btrfs_trans_handle *trans,
switch (type) {
case ACL_TYPE_ACCESS:
mode = inode->i_mode;
name = POSIX_ACL_XATTR_ACCESS;
if (acl) {
ret = posix_acl_equiv_mode(acl, &mode);
ret = posix_acl_equiv_mode(acl, &inode->i_mode);
if (ret < 0)
return ret;
inode->i_mode = mode;
}
ret = 0;
break;
@@ -222,19 +219,16 @@ int btrfs_init_acl(struct btrfs_trans_handle *trans,
}
if (IS_POSIXACL(dir) && acl) {
mode_t mode = inode->i_mode;
if (S_ISDIR(inode->i_mode)) {
ret = btrfs_set_acl(trans, inode, acl,
ACL_TYPE_DEFAULT);
if (ret)
goto failed;
}
ret = posix_acl_create(&acl, GFP_NOFS, &mode);
ret = posix_acl_create(&acl, GFP_NOFS, &inode->i_mode);
if (ret < 0)
return ret;
inode->i_mode = mode;
if (ret > 0) {
/* we need an acl */
ret = btrfs_set_acl(trans, inode, acl, ACL_TYPE_ACCESS);

47
fs/btrfs/inode.c
View File

@@ -3993,12 +3993,19 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
struct btrfs_root *sub_root = root;
struct btrfs_key location;
int index;
int ret;
int ret = 0;
if (dentry->d_name.len > BTRFS_NAME_LEN)
return ERR_PTR(-ENAMETOOLONG);
ret = btrfs_inode_by_name(dir, dentry, &location);
if (unlikely(d_need_lookup(dentry))) {
memcpy(&location, dentry->d_fsdata, sizeof(struct btrfs_key));
kfree(dentry->d_fsdata);
dentry->d_fsdata = NULL;
d_clear_need_lookup(dentry);
} else {
ret = btrfs_inode_by_name(dir, dentry, &location);
}
if (ret < 0)
return ERR_PTR(ret);
@@ -4053,6 +4060,12 @@ static int btrfs_dentry_delete(const struct dentry *dentry)
return 0;
}
static void btrfs_dentry_release(struct dentry *dentry)
{
if (dentry->d_fsdata)
kfree(dentry->d_fsdata);
}
static struct dentry *btrfs_lookup(struct inode *dir, struct dentry *dentry,
struct nameidata *nd)
{
@@ -4075,6 +4088,7 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
struct btrfs_path *path;
struct list_head ins_list;
struct list_head del_list;
struct qstr q;
int ret;
struct extent_buffer *leaf;
int slot;
@@ -4164,6 +4178,7 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
while (di_cur < di_total) {
struct btrfs_key location;
struct dentry *tmp;
if (verify_dir_item(root, leaf, di))
break;
@@ -4184,6 +4199,33 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
d_type = btrfs_filetype_table[btrfs_dir_type(leaf, di)];
btrfs_dir_item_key_to_cpu(leaf, di, &location);
q.name = name_ptr;
q.len = name_len;
q.hash = full_name_hash(q.name, q.len);
tmp = d_lookup(filp->f_dentry, &q);
if (!tmp) {
struct btrfs_key *newkey;
newkey = kzalloc(sizeof(struct btrfs_key),
GFP_NOFS);
if (!newkey)
goto no_dentry;
tmp = d_alloc(filp->f_dentry, &q);
if (!tmp) {
kfree(newkey);
dput(tmp);
goto no_dentry;
}
memcpy(newkey, &location,
sizeof(struct btrfs_key));
tmp->d_fsdata = newkey;
tmp->d_flags |= DCACHE_NEED_LOOKUP;
d_rehash(tmp);
dput(tmp);
} else {
dput(tmp);
}
no_dentry:
/* is this a reference to our own snapshot? If so
* skip it
*/
@@ -7430,4 +7472,5 @@ static const struct inode_operations btrfs_symlink_inode_operations = {
const struct dentry_operations btrfs_dentry_operations = {
.d_delete = btrfs_dentry_delete,
.d_release = btrfs_dentry_release,
};