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xfs: simplify xfs_ioend_can_merge

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Compare the block layer status directly instead of converting it to
an errno first.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2019-06-28 19:31:37 -07:00 committed by Darrick J. Wong
parent 7dbae9fbde
commit fe64e0d26b
1 changed files with 2 additions and 12 deletions
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14
fs/xfs/xfs_aops.c
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@ -285,13 +285,9 @@ xfs_end_ioend(
static bool
xfs_ioend_can_merge(
struct xfs_ioend *ioend,
int ioend_error,
struct xfs_ioend *next)
{
int next_error;
next_error = blk_status_to_errno(next->io_bio->bi_status);
if (ioend_error != next_error)
if (ioend->io_bio->bi_status != next->io_bio->bi_status)
return false;
if ((ioend->io_fork == XFS_COW_FORK) ^ (next->io_fork == XFS_COW_FORK))
return false;
@ -329,17 +325,11 @@ xfs_ioend_try_merge(
struct list_head *more_ioends)
{
struct xfs_ioend *next_ioend;
int ioend_error;
if (list_empty(more_ioends))
return;
ioend_error = blk_status_to_errno(ioend->io_bio->bi_status);
while (!list_empty(more_ioends)) {
next_ioend = list_first_entry(more_ioends, struct xfs_ioend,
io_list);
if (!xfs_ioend_can_merge(ioend, ioend_error, next_ioend))
if (!xfs_ioend_can_merge(ioend, next_ioend))
break;
list_move_tail(&next_ioend->io_list, &ioend->io_list);
ioend->io_size += next_ioend->io_size;