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authorJeff Mahoney <jeffm@suse.com>2016-04-01 23:14:26 +0300
committerDavid Sterba <dsterba@suse.com>2016-04-28 12:06:41 +0300
commit18db9ac644badcb948a623791e599672edade6dd (patch)
treea15061391abc13d88df4ecdd30aa2849ac1d4881 /include/uapi/linux/btrfs.h
parent884f6eca59475bc3cad5c22360523a1261bd5597 (diff)
downloadlinux-18db9ac644badcb948a623791e599672edade6dd.tar.xz
btrfs: uapi/linux/btrfs.h migration, move feature flags
The compat/compat_ro/incompat feature flags are used by the feature set/get ioctls. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'include/uapi/linux/btrfs.h')
-rw-r--r--include/uapi/linux/btrfs.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index 0316e23b32cc..de98717386ee 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -222,6 +222,37 @@ struct btrfs_ioctl_fs_info_args {
__u64 reserved[122]; /* pad to 1k */
};
+/*
+ * feature flags
+ *
+ * Used by:
+ * struct btrfs_ioctl_feature_flags
+ */
+#define BTRFS_FEATURE_COMPAT_RO_FREE_SPACE_TREE (1ULL << 0)
+
+#define BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF (1ULL << 0)
+#define BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL (1ULL << 1)
+#define BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS (1ULL << 2)
+#define BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO (1ULL << 3)
+/*
+ * some patches floated around with a second compression method
+ * lets save that incompat here for when they do get in
+ * Note we don't actually support it, we're just reserving the
+ * number
+ */
+#define BTRFS_FEATURE_INCOMPAT_COMPRESS_LZOv2 (1ULL << 4)
+
+/*
+ * older kernels tried to do bigger metadata blocks, but the
+ * code was pretty buggy. Lets not let them try anymore.
+ */
+#define BTRFS_FEATURE_INCOMPAT_BIG_METADATA (1ULL << 5)
+
+#define BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF (1ULL << 6)
+#define BTRFS_FEATURE_INCOMPAT_RAID56 (1ULL << 7)
+#define BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA (1ULL << 8)
+#define BTRFS_FEATURE_INCOMPAT_NO_HOLES (1ULL << 9)
+
struct btrfs_ioctl_feature_flags {
__u64 compat_flags;
__u64 compat_ro_flags;