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-rw-r--r--fs/ext4/extents.c30
1 files changed, 17 insertions, 13 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 5b2cac0208fe..a1342caad01d 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4028,7 +4028,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
struct ext4_extent newex, *ex, *ex2;
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
ext4_fsblk_t newblock = 0;
- int free_on_err = 0, err = 0, depth, ret;
+ int err = 0, depth, ret;
unsigned int allocated = 0, offset = 0;
unsigned int allocated_clusters = 0;
struct ext4_allocation_request ar;
@@ -4226,7 +4226,6 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
goto out2;
ext_debug("allocate new block: goal %llu, found %llu/%u\n",
ar.goal, newblock, allocated);
- free_on_err = 1;
allocated_clusters = ar.len;
ar.len = EXT4_C2B(sbi, ar.len) - offset;
if (ar.len > allocated)
@@ -4237,23 +4236,28 @@ got_allocated_blocks:
ext4_ext_store_pblock(&newex, newblock + offset);
newex.ee_len = cpu_to_le16(ar.len);
/* Mark unwritten */
- if (flags & EXT4_GET_BLOCKS_UNWRIT_EXT){
+ if (flags & EXT4_GET_BLOCKS_UNWRIT_EXT) {
ext4_ext_mark_unwritten(&newex);
map->m_flags |= EXT4_MAP_UNWRITTEN;
}
- err = 0;
err = ext4_ext_insert_extent(handle, inode, &path, &newex, flags);
+ if (err) {
+ if (allocated_clusters) {
+ int fb_flags = 0;
- if (err && free_on_err) {
- int fb_flags = flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE ?
- EXT4_FREE_BLOCKS_NO_QUOT_UPDATE : 0;
- /* free data blocks we just allocated */
- /* not a good idea to call discard here directly,
- * but otherwise we'd need to call it every free() */
- ext4_discard_preallocations(inode);
- ext4_free_blocks(handle, inode, NULL, newblock,
- EXT4_C2B(sbi, allocated_clusters), fb_flags);
+ /*
+ * free data blocks we just allocated.
+ * not a good idea to call discard here directly,
+ * but otherwise we'd need to call it every free().
+ */
+ ext4_discard_preallocations(inode);
+ if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE)
+ fb_flags = EXT4_FREE_BLOCKS_NO_QUOT_UPDATE;
+ ext4_free_blocks(handle, inode, NULL, newblock,
+ EXT4_C2B(sbi, allocated_clusters),
+ fb_flags);
+ }
goto out2;
}