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rbd: don't test rbd_dev->opts in rbd_dev_image_release()

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rbd_dev->opts is used to distinguish between the image that is being
mapped and a parent.  However, because we no longer establish watch for
read-only mappings, this test is imprecise and results in unnecessary
rbd_unregister_watch() calls.

Make it consistent with need_watch in rbd_dev_image_probe().

Fixes: b9ef2b8858 ("rbd: don't establish watch for read-only mappings")
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jason Dillaman <dillaman@redhat.com>
This commit is contained in:
Ilya Dryomov 2020-03-16 17:16:28 +01:00
parent 952c48b0ed
commit b877605152
1 changed files with 1 additions and 1 deletions
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2
drivers/block/rbd.c
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@ -6898,7 +6898,7 @@ static void rbd_print_dne(struct rbd_device *rbd_dev, bool is_snap)
static void rbd_dev_image_release(struct rbd_device *rbd_dev)
{
if (rbd_dev->opts)
if (!rbd_is_ro(rbd_dev))
rbd_unregister_watch(rbd_dev);
rbd_dev_unprobe(rbd_dev);