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(parent: c7d6518) | 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)
committerZygo Blaxell <zblaxell@serenity.furryterror.org>
Wed, 3 Dec 2014 15:16:51 +0000 (10:16 -0500)
commit87a00a7e910d4b0f7536735278e9c9ac5ce2364c
tree8ad88582df43752c5b05af277762d9961e87d592tree | snapshot
parentc7d651831caa9a96f1f62ac074649fd744b10ffccommit | 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>
(cherry picked from commit 7cc8e58d53cd2295c3c1cee7b503bd1790ea4486)
fs/btrfs/dev-replace.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
Linux kernels and configurations used by Zygo.