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f2fs: reorganize f2fs_setxattr 

make use of F2FS_NAME_LEN for name length checking,
change return conditions at few places, by assigning
storing the errorvalue in 'error' and making a common
exit path.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
This commit is contained in:
Namjae Jeon 2013-03-17 17:26:39 +09:00 committed by Jaegeuk Kim
parent d3ee456dfb
commit 7c909772f1
1 changed files with 10 additions and 8 deletions
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18
fs/f2fs/xattr.c
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@ -310,12 +310,13 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
if (name == NULL)
return -EINVAL;
name_len = strlen(name);
if (value == NULL)
value_len = 0;
if (name_len > 255 || value_len > MAX_VALUE_LEN)
name_len = strlen(name);
if (name_len > F2FS_NAME_LEN || value_len > MAX_VALUE_LEN)
return -ERANGE;
f2fs_balance_fs(sbi);
@ -326,8 +327,8 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
struct dnode_of_data dn;
if (!alloc_nid(sbi, &fi->i_xattr_nid)) {
mutex_unlock_op(sbi, NODE_NEW);
return -ENOSPC;
error = -ENOSPC;
goto exit;
}
set_new_dnode(&dn, inode, NULL, NULL, fi->i_xattr_nid);
mark_inode_dirty(inode);
@ -336,8 +337,8 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
if (IS_ERR(page)) {
alloc_nid_failed(sbi, fi->i_xattr_nid);
fi->i_xattr_nid = 0;
mutex_unlock_op(sbi, NODE_NEW);
return PTR_ERR(page);
error = PTR_ERR(page);
goto exit;
}
alloc_nid_done(sbi, fi->i_xattr_nid);
@ -349,8 +350,8 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
/* The inode already has an extended attribute block. */
page = get_node_page(sbi, fi->i_xattr_nid);
if (IS_ERR(page)) {
mutex_unlock_op(sbi, NODE_NEW);
return PTR_ERR(page);
error = PTR_ERR(page);
goto exit;
}
base_addr = page_address(page);
@ -438,6 +439,7 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
return 0;
cleanup:
f2fs_put_page(page, 1);
exit:
mutex_unlock_op(sbi, NODE_NEW);
return error;
}