From mboxrd@z Thu Jan 1 00:00:00 1970 From: shile.zhang@linux.alibaba.com Subject: [PATCH] bcache: add cond_resched() in __bch_cache_cmp() Date: Thu, 7 Mar 2019 13:15:28 +0800 Message-ID: <1551935728-243664-1-git-send-email-shile.zhang@linux.alibaba.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Coly Li , Kent Overstreet Cc: linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, Shile Zhang List-Id: linux-bcache@vger.kernel.org From: Shile Zhang Read /sys/fs/bcache//cacheN/priority_stats can take very long time with huge cache after long run. Signed-off-by: Shile Zhang --- drivers/md/bcache/sysfs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c index 557a8a3..028fea1 100644 --- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -897,6 +897,7 @@ static void bch_cache_set_internal_release(struct kobject *k) static int __bch_cache_cmp(const void *l, const void *r) { + cond_resched(); return *((uint16_t *)r) - *((uint16_t *)l); } -- 1.8.3.1