diff options
| author | NeilBrown <neilb@suse.com> | 2017-10-19 03:49:15 +0200 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2017-11-02 05:32:20 +0100 |
| commit | b03e0ccb5ab9df3efbe51c87843a1ffbecbafa1f (patch) | |
| tree | 4991194aa067e459500bf1c6515b6d716145165c /drivers/md/raid5-log.h | |
| parent | md: allow metadata update while suspending. (diff) | |
| download | linux-b03e0ccb5ab9df3efbe51c87843a1ffbecbafa1f.tar.xz linux-b03e0ccb5ab9df3efbe51c87843a1ffbecbafa1f.zip | |
md: remove special meaning of ->quiesce(.., 2)
The '2' argument means "wake up anything that is waiting".
This is an inelegant part of the design and was added
to help support management of suspend_lo/suspend_hi setting.
Now that suspend_lo/hi is managed in mddev_suspend/resume,
that need is gone.
These is still a couple of places where we call 'quiesce'
with an argument of '2', but they can safely be changed to
call ->quiesce(.., 1); ->quiesce(.., 0) which
achieve the same result at the small cost of pausing IO
briefly.
This removes a small "optimization" from suspend_{hi,lo}_store,
but it isn't clear that optimization served a useful purpose.
The code now is a lot clearer.
Suggested-by: Shaohua Li <shli@kernel.org>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Diffstat (limited to 'drivers/md/raid5-log.h')
| -rw-r--r-- | drivers/md/raid5-log.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/raid5-log.h b/drivers/md/raid5-log.h index 328d67aedda4..c3596a27a5a8 100644 --- a/drivers/md/raid5-log.h +++ b/drivers/md/raid5-log.h @@ -8,7 +8,7 @@ extern void r5l_write_stripe_run(struct r5l_log *log); extern void r5l_flush_stripe_to_raid(struct r5l_log *log); extern void r5l_stripe_write_finished(struct stripe_head *sh); extern int r5l_handle_flush_request(struct r5l_log *log, struct bio *bio); -extern void r5l_quiesce(struct r5l_log *log, int state); +extern void r5l_quiesce(struct r5l_log *log, int quiesce); extern bool r5l_log_disk_error(struct r5conf *conf); extern bool r5c_is_writeback(struct r5l_log *log); extern int |