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md/raid5: use async_tx_quiesce() instead of open-coding it. 

handle_stripe_expansion contains:

        if (tx) {
                async_tx_ack(tx);
                dma_wait_for_async_tx(tx);
        }

which is very similar to the body of async_tx_quiesce(),
except that the later handles an error from dma_wait_for_async_tx()
(admittedly by panicing, but that decision belongs in the dma
code, not the md code).

So just us async_tx_quiesce().

Acked-by: Dan Williams <djbw@fb.com>
Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
NeilBrown 2012-11-20 14:11:15 +11:00
parent 0a19caabf0
commit 749586b7d3
1 changed files with 1 additions and 4 deletions
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5
drivers/md/raid5.c
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@ -3224,10 +3224,7 @@ static void handle_stripe_expansion(struct r5conf *conf, struct stripe_head *sh)
}
/* done submitting copies, wait for them to complete */
if (tx) {
async_tx_ack(tx);
dma_wait_for_async_tx(tx);
}
async_tx_quiesce(&tx);
}
/*