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Btrfs: modify rw_devices counter under chunk_mutex context
authorMiao Xie <miaox@cn.fujitsu.com>
Wed, 3 Sep 2014 13:35:47 +0000 (21:35 +0800)
committerChris Mason <clm@fb.com>
Wed, 17 Sep 2014 20:38:49 +0000 (13:38 -0700)
commitc3929c3624e1764855e5a452728aec201b18b42a
treeaf7420005570b68cbe7810e58f1bd84078b9925ftree | snapshot (tar.gz zip)
parent5f375835694426d00a7a4bc7fef72479578f279fcommit | diff
Btrfs: modify rw_devices counter under chunk_mutex context

rw_devices counter is often used to tune the profile when doing chunk allocation,
so we should modify it under the chunk_mutex context to avoid getting wrong
chunk profile.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
fs/btrfs/volumes.c diff | blob | blame | history