diff options
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 30 |
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; } |