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Btrfs: remove csum_bytes_left

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After commit 8407f55326
("Btrfs: fix data corruption after fast fsync and writeback error"),
during wait_ordered_extents(), we wait for ordered extent setting
BTRFS_ORDERED_IO_DONE or BTRFS_ORDERED_IOERR, at which point we've
already got checksum information, so we don't need to check
(csum_bytes_left == 0) in the whole logging path.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Liu Bo
2015-05-25 11:20:22 +08:00
committed by Chris Mason
parent 39c2d7facc
commit 0c304304fe
3 changed files with 0 additions and 16 deletions
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6
fs/btrfs/tree-log.c
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@@ -3881,12 +3881,6 @@ static int wait_ordered_extents(struct btrfs_trans_handle *trans,
&ordered->flags))
continue;
if (ordered->csum_bytes_left) {
btrfs_start_ordered_extent(inode, ordered, 0);
wait_event(ordered->wait,
ordered->csum_bytes_left == 0);
}
list_for_each_entry(sum, &ordered->list, list) {
ret = btrfs_csum_file_blocks(trans, log, sum);
if (ret)