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dm: make dm_flush return void

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Make dm_flush return void.

The first error during flush is stored in md->barrier_error instead.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Mikulas Patocka 2009-06-22 10:12:17 +01:00 committed by Alasdair G Kergon
parent 32a926da5a
commit 531fe96364
1 changed files with 4 additions and 13 deletions
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17
drivers/md/dm.c
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@ -1439,34 +1439,25 @@ static int dm_wait_for_completion(struct mapped_device *md, int interruptible)
return r;
}
static int dm_flush(struct mapped_device *md)
static void dm_flush(struct mapped_device *md)
{
dm_wait_for_completion(md, TASK_UNINTERRUPTIBLE);
return 0;
}
static void process_barrier(struct mapped_device *md, struct bio *bio)
{
int error = dm_flush(md);
dm_flush(md);
if (unlikely(error)) {
bio_endio(bio, error);
return;
}
if (bio_empty_barrier(bio)) {
bio_endio(bio, 0);
return;
}
__split_and_process_bio(md, bio);
error = dm_flush(md);
if (!error && md->barrier_error)
error = md->barrier_error;
dm_flush(md);
if (md->barrier_error != DM_ENDIO_REQUEUE)
bio_endio(bio, error);
bio_endio(bio, md->barrier_error);
}
/*