From 1917eb2db750ecbdf710f79a8042eaa545a063c7 Mon Sep 17 00:00:00 2001 From: Mikulas Patocka Date: Fri, 10 Jul 2026 18:35:49 +0200 Subject: dm-stats: fix merge accounting There were wrong parentheses when setting stats_aux->merged, so that merging was never properly accounted. This commit fixes it. Signed-off-by: Mikulas Patocka Assisted-by: Claude:claude-opus-4-6 Fixes: fd2ed4d25270 ("dm: add statistics support") Cc: stable@vger.kernel.org --- drivers/md/dm-stats.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c index c53cf07ab7b0..e06374a3329e 100644 --- a/drivers/md/dm-stats.c +++ b/drivers/md/dm-stats.c @@ -692,10 +692,8 @@ void dm_stats_account_io(struct dm_stats *stats, unsigned long bi_rw, */ last = raw_cpu_ptr(stats->last); stats_aux->merged = - (bi_sector == (READ_ONCE(last->last_sector) && - ((bi_rw == WRITE) == - (READ_ONCE(last->last_rw) == WRITE)) - )); + bi_sector == READ_ONCE(last->last_sector) && + (bi_rw == WRITE) == (READ_ONCE(last->last_rw) == WRITE); WRITE_ONCE(last->last_sector, end_sector); WRITE_ONCE(last->last_rw, bi_rw); } else -- cgit v1.2.3