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io_uring/rsrc: refactor io_rsrc_ref_quiesce

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Refactor io_rsrc_ref_quiesce() by moving the first mutex_unlock(),
so we don't have to have a second mutex_unlock() further in the loop.
It prepares us to the next patch.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/65bc876271fb16bf550a53a4c76c91aacd94e52e.1681395792.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2023-04-13 15:28:07 +01:00 committed by Jens Axboe
parent c732ea242d
commit eef81fcaa6
1 changed files with 5 additions and 13 deletions
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18
io_uring/rsrc.c
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@ -272,8 +272,8 @@ __cold static int io_rsrc_ref_quiesce(struct io_rsrc_data *data,
return 0;
data->quiesce = true;
mutex_unlock(&ctx->uring_lock);
do {
mutex_unlock(&ctx->uring_lock);
ret = io_run_task_work_sig(ctx);
if (ret < 0) {
mutex_lock(&ctx->uring_lock);
@ -285,18 +285,10 @@ __cold static int io_rsrc_ref_quiesce(struct io_rsrc_data *data,
}
break;
}
ret = wait_for_completion_interruptible(&data->done);
if (!ret) {
mutex_lock(&ctx->uring_lock);
if (!data->refs)
break;
/*
* it has been revived by another thread while
* we were unlocked
*/
mutex_unlock(&ctx->uring_lock);
}
} while (1);
wait_for_completion_interruptible(&data->done);
mutex_lock(&ctx->uring_lock);
ret = 0;
} while (data->refs);
data->quiesce = false;
return ret;