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authorTsutomu Itoh <t-itoh@jp.fujitsu.com>2017-10-04 04:05:17 +0200
committerDavid Sterba <dsterba@suse.com>2017-10-04 16:44:18 +0200
commit69ad59767d094752c23c0fc180a79532fde073d0 (patch)
tree953566fb25690a7f0245f3bbe6e5fdc6225bbffa /fs/btrfs/ctree.h
parentbtrfs: avoid overflow when sector_t is 32 bit (diff)
downloadlinux-69ad59767d094752c23c0fc180a79532fde073d0.tar.xz
linux-69ad59767d094752c23c0fc180a79532fde073d0.zip
Btrfs: fix overlap of fs_info::flags values
Because the values of BTRFS_FS_EXCL_OP and BTRFS_FS_QUOTA_OVERRIDE overlap, we should change the value. First, BTRFS_FS_EXCL_OP was set to 14. commit 171938e52807 ("btrfs: track exclusive filesystem operation in flags") Next, the value of BTRFS_FS_QUOTA_OVERRIDE was set to 14. commit f29efe292198 ("btrfs: add quota override flag to enable quota override for CAP_SYS_RESOURCE") As a result, the value 14 overlapped, by accident. This problem is solved by defining the value of BTRFS_FS_EXCL_OP as 16, the flags are internal. Fixes: f29efe292198 ("btrfs: add quota override flag to enable quota override for CAP_SYS_RESOURCE") CC: stable@vger.kernel.org # 4.13+ Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com> Reviewed-by: David Sterba <dsterba@suse.com> [ minimize the change, update only BTRFS_FS_EXCL_OP ] Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index b7ccfcc01732..aff3248beb90 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -721,7 +721,7 @@ struct btrfs_delayed_root;
* Indicate that a whole-filesystem exclusive operation is running
* (device replace, resize, device add/delete, balance)
*/
-#define BTRFS_FS_EXCL_OP 14
+#define BTRFS_FS_EXCL_OP 16
struct btrfs_fs_info {
u8 fsid[BTRFS_FSID_SIZE];