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(parent: 1c11618) | patch
Btrfs: fix unprotected device's variants on 32bits machine
authorMiao Xie <miaox@cn.fujitsu.com>
Wed, 3 Sep 2014 13:35:38 +0000 (21:35 +0800)
committerChris Mason <clm@fb.com>
Wed, 17 Sep 2014 20:38:38 +0000 (13:38 -0700)
commit7cc8e58d53cd2295c3c1cee7b503bd1790ea4486
tree1befd9a2bea8e1808f0fe1b12406c05b3f7dbe2dtree | snapshot (tar.gz zip)
parent1c1161870c8bcb0d966ebbf1aec05a87a79a4175commit | diff
Btrfs: fix unprotected device's variants on 32bits machine

->total_bytes,->disk_total_bytes,->bytes_used is protected by chunk
lock when we change them, but sometimes we read them without any lock,
and we might get unexpected value. We fix this problem like inode's
i_size.

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