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Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/extents.c37
1 files changed, 19 insertions, 18 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 233afd884abc..dbadf2aa4376 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3811,13 +3811,12 @@ errout:
return ERR_PTR(err);
}
-static int
+static struct ext4_ext_path *
convert_initialized_extent(handle_t *handle, struct inode *inode,
struct ext4_map_blocks *map,
- struct ext4_ext_path **ppath,
+ struct ext4_ext_path *path,
unsigned int *allocated)
{
- struct ext4_ext_path *path = *ppath;
struct ext4_extent *ex;
ext4_lblk_t ee_block;
unsigned int ee_len;
@@ -3842,29 +3841,25 @@ convert_initialized_extent(handle_t *handle, struct inode *inode,
if (ee_block != map->m_lblk || ee_len > map->m_len) {
path = ext4_split_convert_extents(handle, inode, map, path,
EXT4_GET_BLOCKS_CONVERT_UNWRITTEN, NULL);
- if (IS_ERR(path)) {
- *ppath = NULL;
- return PTR_ERR(path);
- }
+ if (IS_ERR(path))
+ return path;
path = ext4_find_extent(inode, map->m_lblk, path, 0);
- if (IS_ERR(path)) {
- *ppath = NULL;
- return PTR_ERR(path);
- }
- *ppath = path;
+ if (IS_ERR(path))
+ return path;
depth = ext_depth(inode);
ex = path[depth].p_ext;
if (!ex) {
EXT4_ERROR_INODE(inode, "unexpected hole at %lu",
(unsigned long) map->m_lblk);
- return -EFSCORRUPTED;
+ err = -EFSCORRUPTED;
+ goto errout;
}
}
err = ext4_ext_get_access(handle, inode, path + depth);
if (err)
- return err;
+ goto errout;
/* first mark the extent as unwritten */
ext4_ext_mark_unwritten(ex);
@@ -3876,7 +3871,7 @@ convert_initialized_extent(handle_t *handle, struct inode *inode,
/* Mark modified extent as dirty */
err = ext4_ext_dirty(handle, inode, path + path->p_depth);
if (err)
- return err;
+ goto errout;
ext4_ext_show_leaf(inode, path);
ext4_update_inode_fsync_trans(handle, inode, 1);
@@ -3885,7 +3880,11 @@ convert_initialized_extent(handle_t *handle, struct inode *inode,
if (*allocated > map->m_len)
*allocated = map->m_len;
map->m_len = *allocated;
- return 0;
+ return path;
+
+errout:
+ ext4_free_ext_path(path);
+ return ERR_PTR(err);
}
static struct ext4_ext_path *
@@ -4256,8 +4255,10 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
*/
if ((!ext4_ext_is_unwritten(ex)) &&
(flags & EXT4_GET_BLOCKS_CONVERT_UNWRITTEN)) {
- err = convert_initialized_extent(handle,
- inode, map, &path, &allocated);
+ path = convert_initialized_extent(handle,
+ inode, map, path, &allocated);
+ if (IS_ERR(path))
+ err = PTR_ERR(path);
goto out;
} else if (!ext4_ext_is_unwritten(ex)) {
map->m_flags |= EXT4_MAP_MAPPED;