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rbd: only set device exists flag when ready 

Hold off setting the EXISTS rbd device flag until just before we
announce the disk as available for use.  There's no point in doing
so any earlier than that, and at that point the device truly is
fully set up and ready to use.

Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
This commit is contained in:
Alex Elder 2013-04-26 15:44:36 -05:00 committed by Sage Weil
parent fc71d8330e
commit 129b79d449
1 changed files with 1 additions and 1 deletions
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2
drivers/block/rbd.c
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@ -881,7 +881,6 @@ static int rbd_dev_set_mapping(struct rbd_device *rbd_dev)
rbd_dev->mapping.features = snap->features;
rbd_dev->mapping.read_only = true;
}
set_bit(RBD_DEV_FLAG_EXISTS, &rbd_dev->flags);
return 0;
}
@ -4785,6 +4784,7 @@ static int rbd_dev_probe_finish(struct rbd_device *rbd_dev)
/* Everything's ready. Announce the disk to the world. */
set_bit(RBD_DEV_FLAG_EXISTS, &rbd_dev->flags);
add_disk(rbd_dev->disk);
pr_info("%s: added with size 0x%llx\n", rbd_dev->disk->disk_name,