Btrfs: free btrfs_device in place

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It's pointless to defer it to a kthread helper as we're not under a
special context.

For reference, commit 1f78160ce1 ("Btrfs: using rcu lock in the reader
side of devices list") introduced RCU freeing for device structures.

Originally the blkdev_put was called from free_device and rcu_barrier had
to be called. This is no longer required, bdev and our device structures
are now freed separately.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ enhance changelog ]
Signed-off-by: David Sterba <dsterba@suse.com>

...

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Liu Bo 2017-10-23 23:02:54 -06:00 • committed by David Sterba

parent 1805f2ca3f

commit 9f5316c17b

2 changed files with 2 additions and 13 deletions

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16

fs/btrfs/volumes.c

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1

fs/btrfs/volumes.h

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