Messages in this thread Patch in this message | | | From | shile.zhang@linux ... | Subject | [PATCH] bcache: add cond_resched() in __bch_cache_cmp() | Date | Thu, 7 Mar 2019 13:15:28 +0800 |
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From: Shile Zhang <shile.zhang@linux.alibaba.com>
Read /sys/fs/bcache/<uuid>/cacheN/priority_stats can take very long time with huge cache after long run.
Signed-off-by: Shile Zhang <shile.zhang@linux.alibaba.com> --- 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
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