diff options
Diffstat (limited to 'fs/ext4/xattr.c')
| -rw-r--r-- | fs/ext4/xattr.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 4eec399ec80..e7387337060 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -369,6 +369,9 @@ ext4_xattr_get(struct inode *inode, int name_index, const char *name, { int error; + if (strlen(name) > 255) + return -ERANGE; + down_read(&EXT4_I(inode)->xattr_sem); error = ext4_xattr_ibody_get(inode, name_index, name, buffer, buffer_size); @@ -513,6 +516,7 @@ static void ext4_xattr_update_super_block(handle_t *handle, if (EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_EXT_ATTR)) return; + BUFFER_TRACE(EXT4_SB(sb)->s_sbh, "get_write_access"); if (ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh) == 0) { EXT4_SET_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_EXT_ATTR); ext4_handle_dirty_super(handle, sb); @@ -532,6 +536,7 @@ ext4_xattr_release_block(handle_t *handle, struct inode *inode, struct mb_cache *ext4_mb_cache = EXT4_GET_MB_CACHE(inode); ce = mb_cache_entry_get(ext4_mb_cache, bh->b_bdev, bh->b_blocknr); + BUFFER_TRACE(bh, "get_write_access"); error = ext4_journal_get_write_access(handle, bh); if (error) goto out; @@ -774,6 +779,7 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode, if (s->base) { ce = mb_cache_entry_get(ext4_mb_cache, bs->bh->b_bdev, bs->bh->b_blocknr); + BUFFER_TRACE(bs->bh, "get_write_access"); error = ext4_journal_get_write_access(handle, bs->bh); if (error) goto cleanup; @@ -859,6 +865,7 @@ inserted: EXT4_C2B(EXT4_SB(sb), 1)); if (error) goto cleanup; + BUFFER_TRACE(new_bh, "get_write_access"); error = ext4_journal_get_write_access(handle, new_bh); if (error) @@ -896,7 +903,7 @@ inserted: * take i_data_sem because we will test * i_delalloc_reserved_flag in ext4_mb_new_blocks */ - down_read((&EXT4_I(inode)->i_data_sem)); + down_read(&EXT4_I(inode)->i_data_sem); block = ext4_new_meta_blocks(handle, inode, goal, 0, NULL, &error); up_read((&EXT4_I(inode)->i_data_sem)); |