diff options
Diffstat (limited to 'fs/ext4/extents.c')
| -rw-r--r-- | fs/ext4/extents.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 7d7b74e9468..765a4826b11 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3132,7 +3132,19 @@ out: unmap_underlying_metadata_blocks(inode->i_sb->s_bdev, newblock + max_blocks, allocated - max_blocks); + allocated = max_blocks; } + + /* + * If we have done fallocate with the offset that is already + * delayed allocated, we would have block reservation + * and quota reservation done in the delayed write path. + * But fallocate would have already updated quota and block + * count for this offset. So cancel these reservation + */ + if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) + ext4_da_update_reserve_space(inode, allocated, 0); + map_out: set_buffer_mapped(bh_result); out1: @@ -3368,9 +3380,18 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, /* previous routine could use block we allocated */ newblock = ext_pblock(&newex); allocated = ext4_ext_get_actual_len(&newex); + if (allocated > max_blocks) + allocated = max_blocks; set_buffer_new(bh_result); /* + * Update reserved blocks/metadata blocks after successful + * block allocation which had been deferred till now. + */ + if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) + ext4_da_update_reserve_space(inode, allocated, 1); + + /* * Cache the extent and update transaction to commit on fdatasync only * when it is _not_ an uninitialized extent. */ |