linux-kernel - [PATCH 3/5] md/raid5: Drop unnecessary call to r5c_check_stripe_cache

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Date:   Wed, 27 Jul 2022 15:05:58 -0600
From:   Logan Gunthorpe <logang@...tatee.com>
To:     linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org,
        Song Liu <song@...nel.org>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Guoqing Jiang <guoqing.jiang@...ux.dev>,
        Stephen Bates <sbates@...thlin.com>,
        Martin Oliveira <Martin.Oliveira@...eticom.com>,
        David Sloan <David.Sloan@...eticom.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Martin Oliveira <martin.oliveira@...eticom.com>
Subject: [PATCH 3/5] md/raid5: Drop unnecessary call to r5c_check_stripe_cache_usage()

Now that raid5_get_active_stripe() has been refactored it is appearant
that r5c_check_stripe_cache_usage() doesn't need to be called in
the wait_for_stripe branch.

r5c_check_stripe_cache_usage() will only conditionally call
r5l_wake_reclaim(), but that function is called two lines later.

Drop the call for cleanup.

Reported-by: Martin Oliveira <martin.oliveira@...eticom.com>
Signed-off-by: Logan Gunthorpe <logang@...tatee.com>
---
 drivers/md/raid5.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index e7e02a979670..e09fa55960cc 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -810,7 +810,6 @@ raid5_get_active_stripe(struct r5conf *conf, sector_t sector,
 	if (noblock)
 		goto out;
 
-	r5c_check_stripe_cache_usage(conf);
 	set_bit(R5_INACTIVE_BLOCKED, &conf->cache_state);
 	r5l_wake_reclaim(conf->log, 0);
 	wait_event_lock_irq(conf->wait_for_stripe,
-- 
2.30.2