From: Anand Jain <[email protected]> Add BTRFS_FEATURE_INCOMPAT_SPARE_DEV (400) flag to identify a spare device.
Along with this it checks in the mount context that a spare device will fail to mount. As spare devices aren't mountable. Signed-off-by: Anand Jain <[email protected]> Tested-by: Austin S. Hemmelgarn <[email protected]> Tested-by: Yauhen Kharuzhy <[email protected]> --- V6: rebase on for-next fs/btrfs/ctree.h | 3 ++- include/uapi/linux/btrfs.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 92e689787cae..728712baf5d5 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -279,7 +279,8 @@ struct btrfs_super_block { BTRFS_FEATURE_INCOMPAT_RAID56 | \ BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF | \ BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA | \ - BTRFS_FEATURE_INCOMPAT_NO_HOLES) + BTRFS_FEATURE_INCOMPAT_NO_HOLES | \ + BTRFS_FEATURE_INCOMPAT_SPARE_DEV) #define BTRFS_FEATURE_INCOMPAT_SAFE_SET \ (BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF) diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index 23c6960e94a4..c9ff6734e734 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -263,6 +263,7 @@ struct btrfs_ioctl_fs_info_args { #define BTRFS_FEATURE_INCOMPAT_RAID56 (1ULL << 7) #define BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA (1ULL << 8) #define BTRFS_FEATURE_INCOMPAT_NO_HOLES (1ULL << 9) +#define BTRFS_FEATURE_INCOMPAT_SPARE_DEV (1ULL << 10) struct btrfs_ioctl_feature_flags { __u64 compat_flags; -- 2.7.0 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
