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| /openbmc/linux/drivers/md/bcache/ |
| H A D | super.c | diff ee4a36f414617aaae01f93133e828363e7e9dd17 Sun Jun 14 11:53:32 CDT 2020 Coly Li <colyli@suse.de> bcache: use delayed kworker fo asynchronous devices registration
This patch changes the asynchronous registration kworker to a delayed
kworker. There is probability queue_work() queues the async registration
kworker to the same CPU (even though very little), then the process
which writing sysfs interface to reigster bcache device may won't return
immeidately. queue_delayed_work() in this patch will delay 10 jiffies
before insert the kworker to run queue, which makes sure the registering
process may always returns to user space in time.
Fixes: 9e23ccf8f0a22 ("bcache: asynchronous devices registration")
Signed-off-by: Coly Li <colyli@suse.de>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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