summaryrefslogtreecommitdiffstats
path: root/fs/ext4/xattr.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ext4/xattr.c')
-rw-r--r--fs/ext4/xattr.c50
1 files changed, 26 insertions, 24 deletions
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 174d4e4a295f..354c55c3f70c 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -77,8 +77,9 @@ static void ext4_xattr_block_cache_insert(struct mb_cache *,
static struct buffer_head *
ext4_xattr_block_cache_find(struct inode *, struct ext4_xattr_header *,
struct mb_cache_entry **);
-static void ext4_xattr_rehash(struct ext4_xattr_header *,
- struct ext4_xattr_entry *);
+static void ext4_xattr_hash_entry(struct ext4_xattr_entry *entry,
+ void *value_base);
+static void ext4_xattr_rehash(struct ext4_xattr_header *);
static const struct xattr_handler * const ext4_xattr_handler_map[] = {
[EXT4_XATTR_INDEX_USER] = &ext4_xattr_user_handler,
@@ -1467,7 +1468,8 @@ static int ext4_xattr_inode_lookup_create(handle_t *handle, struct inode *inode,
static int ext4_xattr_set_entry(struct ext4_xattr_info *i,
struct ext4_xattr_search *s,
- handle_t *handle, struct inode *inode)
+ handle_t *handle, struct inode *inode,
+ bool is_block)
{
struct ext4_xattr_entry *last;
struct ext4_xattr_entry *here = s->here;
@@ -1531,8 +1533,8 @@ static int ext4_xattr_set_entry(struct ext4_xattr_info *i,
* attribute block so that a long value does not occupy the
* whole space and prevent futher entries being added.
*/
- if (ext4_has_feature_ea_inode(inode->i_sb) && new_size &&
- (s->end - s->base) == i_blocksize(inode) &&
+ if (ext4_has_feature_ea_inode(inode->i_sb) &&
+ new_size && is_block &&
(min_offs + old_size - new_size) <
EXT4_XATTR_BLOCK_RESERVE(inode)) {
ret = -ENOSPC;
@@ -1662,6 +1664,13 @@ static int ext4_xattr_set_entry(struct ext4_xattr_info *i,
}
here->e_value_size = cpu_to_le32(i->value_len);
}
+
+ if (is_block) {
+ if (i->value)
+ ext4_xattr_hash_entry(here, s->base);
+ ext4_xattr_rehash((struct ext4_xattr_header *)s->base);
+ }
+
ret = 0;
out:
iput(old_ea_inode);
@@ -1751,14 +1760,11 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
mb_cache_entry_delete(ea_block_cache, hash,
bs->bh->b_blocknr);
ea_bdebug(bs->bh, "modifying in-place");
- error = ext4_xattr_set_entry(i, s, handle, inode);
- if (!error) {
- if (!IS_LAST_ENTRY(s->first))
- ext4_xattr_rehash(header(s->base),
- s->here);
+ error = ext4_xattr_set_entry(i, s, handle, inode,
+ true /* is_block */);
+ if (!error)
ext4_xattr_block_cache_insert(ea_block_cache,
bs->bh);
- }
ext4_xattr_block_csum_set(inode, bs->bh);
unlock_buffer(bs->bh);
if (error == -EFSCORRUPTED)
@@ -1818,7 +1824,7 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
s->end = s->base + sb->s_blocksize;
}
- error = ext4_xattr_set_entry(i, s, handle, inode);
+ error = ext4_xattr_set_entry(i, s, handle, inode, true /* is_block */);
if (error == -EFSCORRUPTED)
goto bad_block;
if (error)
@@ -1841,9 +1847,6 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
}
}
- if (!IS_LAST_ENTRY(s->first))
- ext4_xattr_rehash(header(s->base), s->here);
-
inserted:
if (!IS_LAST_ENTRY(s->first)) {
new_bh = ext4_xattr_block_cache_find(inode, header(s->base),
@@ -2076,7 +2079,7 @@ int ext4_xattr_ibody_inline_set(handle_t *handle, struct inode *inode,
if (EXT4_I(inode)->i_extra_isize == 0)
return -ENOSPC;
- error = ext4_xattr_set_entry(i, s, handle, inode);
+ error = ext4_xattr_set_entry(i, s, handle, inode, false /* is_block */);
if (error) {
if (error == -ENOSPC &&
ext4_has_inline_data(inode)) {
@@ -2088,7 +2091,8 @@ int ext4_xattr_ibody_inline_set(handle_t *handle, struct inode *inode,
error = ext4_xattr_ibody_find(inode, i, is);
if (error)
return error;
- error = ext4_xattr_set_entry(i, s, handle, inode);
+ error = ext4_xattr_set_entry(i, s, handle, inode,
+ false /* is_block */);
}
if (error)
return error;
@@ -2114,7 +2118,7 @@ static int ext4_xattr_ibody_set(handle_t *handle, struct inode *inode,
if (EXT4_I(inode)->i_extra_isize == 0)
return -ENOSPC;
- error = ext4_xattr_set_entry(i, s, handle, inode);
+ error = ext4_xattr_set_entry(i, s, handle, inode, false /* is_block */);
if (error)
return error;
header = IHDR(inode, ext4_raw_inode(&is->iloc));
@@ -2940,8 +2944,8 @@ ext4_xattr_block_cache_find(struct inode *inode,
*
* Compute the hash of an extended attribute.
*/
-static inline void ext4_xattr_hash_entry(struct ext4_xattr_header *header,
- struct ext4_xattr_entry *entry)
+static void ext4_xattr_hash_entry(struct ext4_xattr_entry *entry,
+ void *value_base)
{
__u32 hash = 0;
char *name = entry->e_name;
@@ -2954,7 +2958,7 @@ static inline void ext4_xattr_hash_entry(struct ext4_xattr_header *header,
}
if (!entry->e_value_inum && entry->e_value_size) {
- __le32 *value = (__le32 *)((char *)header +
+ __le32 *value = (__le32 *)((char *)value_base +
le16_to_cpu(entry->e_value_offs));
for (n = (le32_to_cpu(entry->e_value_size) +
EXT4_XATTR_ROUND) >> EXT4_XATTR_PAD_BITS; n; n--) {
@@ -2976,13 +2980,11 @@ static inline void ext4_xattr_hash_entry(struct ext4_xattr_header *header,
*
* Re-compute the extended attribute hash value after an entry has changed.
*/
-static void ext4_xattr_rehash(struct ext4_xattr_header *header,
- struct ext4_xattr_entry *entry)
+static void ext4_xattr_rehash(struct ext4_xattr_header *header)
{
struct ext4_xattr_entry *here;
__u32 hash = 0;
- ext4_xattr_hash_entry(header, entry);
here = ENTRY(header+1);
while (!IS_LAST_ENTRY(here)) {
if (!here->e_hash) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 18:12:18 +0100