xfs: shut up -Wuninitialized in xfsaild_push

-Wuninitialized complains about @target in xfsaild_push being
uninitialized in the case where the waitqueue is active but there is no
last item in the AIL to wait for.  I /think/ it should never be the case
that the subsequent xfs_trans_ail_cursor_first returns a log item and
hence we'll never end up at XFS_LSN_CMP, but let's make this explicit.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong 2022-11-28 17:24:42 -08:00
parent fd5beaff25
commit e5827a007a

View File

@ -422,7 +422,7 @@ xfsaild_push(
struct xfs_ail_cursor cur;
struct xfs_log_item *lip;
xfs_lsn_t lsn;
xfs_lsn_t target;
xfs_lsn_t target = NULLCOMMITLSN;
long tout;
int stuck = 0;
int flushing = 0;
@ -472,6 +472,8 @@ xfsaild_push(
XFS_STATS_INC(mp, xs_push_ail);
ASSERT(target != NULLCOMMITLSN);
lsn = lip->li_lsn;
while ((XFS_LSN_CMP(lip->li_lsn, target) <= 0)) {
int lock_result;