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| author | Stefan Behrens <sbehrens@giantdisaster.de> | 2012-11-05 16:54:08 (GMT) |
|---|---|---|
| committer | Josef Bacik <jbacik@fusionio.com> | 2012-12-12 22:15:38 (GMT) |
| commit | 5ac00addc7ac09110995fe967071d191b5981cc1 (patch) | |
| tree | a5290cc4e69c434b24c091a212d1723bae56e46c /fs/btrfs/ctree.h | |
| parent | a2bff64025d7a707ac49155bb6678a636e55096e (diff) | |
| download | linux-fsl-qoriq-5ac00addc7ac09110995fe967071d191b5981cc1.tar.xz | |
Btrfs: disallow mutually exclusive admin operations from user mode
Btrfs admin operations that are manually started from user mode
and that cannot be executed at the same time return -EINPROGRESS.
A common way to enter and leave this locked section is introduced
since it used to be specific to the balance operation.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
| -rw-r--r-- | fs/btrfs/ctree.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 147406d..e9dc780 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1527,6 +1527,8 @@ struct btrfs_fs_info { /* device replace state */ struct btrfs_dev_replace dev_replace; + + atomic_t mutually_exclusive_operation_running; }; /* |