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Btrfs: using rcu lock in the reader side of devices list
authorXiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Wed, 20 Apr 2011 10:09:16 +0000 (10:09 +0000)
committerChris Mason <chris.mason@oracle.com>
Mon, 23 May 2011 17:24:43 +0000 (13:24 -0400)
commit1f78160ce1b1b8e657e2248118c4d91f881763f0
tree98c5496a9ab3e77e4cd682c0487f4c0127198396tree
parent46224705656633466ca7dc71d81b3c0abc76cae4commit | diff
Btrfs: using rcu lock in the reader side of devices list

fs_devices->devices is only updated on remove and add device paths, so we can
use rcu to protect it in the reader side

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/disk-io.c diff | blob | history
fs/btrfs/ioctl.c diff | blob | history
fs/btrfs/volumes.c diff | blob | history
fs/btrfs/volumes.h diff | blob | history
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