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dm: don't report "detected capacity change" on device creation

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When a DM device is first created it doesn't yet have an established
capacity, therefore the use of set_capacity_and_notify() should be
conditional given the potential for needless pr_info "detected
capacity change" noise even if capacity is 0.

One could argue that the pr_info() in set_capacity_and_notify() is
misplaced, but that position is not held uniformly.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Fixes: f64d9b2eac ("dm: use set_capacity_and_notify")
Cc: stable@vger.kernel.org
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Mikulas Patocka 2021-03-22 10:13:54 -04:00 committed by Mike Snitzer
parent 2d669ceb69
commit 5424a0b867
1 changed files with 4 additions and 1 deletions
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5
drivers/md/dm.c
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@ -2036,7 +2036,10 @@ static struct dm_table *__bind(struct mapped_device *md, struct dm_table *t,
if (size != dm_get_size(md))
memset(&md->geometry, 0, sizeof(md->geometry));
set_capacity_and_notify(md->disk, size);
if (!get_capacity(md->disk))
set_capacity(md->disk, size);
else
set_capacity_and_notify(md->disk, size);
dm_table_event_callback(t, event_callback, md);