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authorChris Mason <chris.mason@oracle.com>2012-03-28 20:32:46 -0400
committerChris Mason <chris.mason@oracle.com>2012-03-28 20:32:46 -0400
commit1c691b330a19a1344df89bcb0f4cacd99e8b289a (patch)
treeb3143a9875a773d33b9b8f60e98c7e5fae003b6a /fs/btrfs/ctree.h
parent1d4284bd6e8d7dd1d5521a6747bdb6dc1caf0225 (diff)
parent213e64da90d14537cd63f7090d6c4d1fcc75d9f8 (diff)
Merge branch 'for-chris' of git://github.com/idryomov/btrfs-unstable into for-linus
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h33
1 files changed, 15 insertions, 18 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index ed2d196f7a8..5b8ef8eb352 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -851,6 +851,21 @@ struct btrfs_csum_item {
*/
#define BTRFS_AVAIL_ALLOC_BIT_SINGLE (1ULL << 48)
+#define BTRFS_EXTENDED_PROFILE_MASK (BTRFS_BLOCK_GROUP_PROFILE_MASK | \
+ BTRFS_AVAIL_ALLOC_BIT_SINGLE)
+
+static inline u64 chunk_to_extended(u64 flags)
+{
+ if ((flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) == 0)
+ flags |= BTRFS_AVAIL_ALLOC_BIT_SINGLE;
+
+ return flags;
+}
+static inline u64 extended_to_chunk(u64 flags)
+{
+ return flags & ~BTRFS_AVAIL_ALLOC_BIT_SINGLE;
+}
+
struct btrfs_block_group_item {
__le64 used;
__le64 chunk_objectid;
@@ -2723,24 +2738,6 @@ static inline void free_fs_info(struct btrfs_fs_info *fs_info)
kfree(fs_info->super_for_commit);
kfree(fs_info);
}
-/**
- * profile_is_valid - tests whether a given profile is valid and reduced
- * @flags: profile to validate
- * @extended: if true @flags is treated as an extended profile
- */
-static inline int profile_is_valid(u64 flags, int extended)
-{
- u64 mask = ~BTRFS_BLOCK_GROUP_PROFILE_MASK;
-
- flags &= ~BTRFS_BLOCK_GROUP_TYPE_MASK;
- if (extended)
- mask &= ~BTRFS_AVAIL_ALLOC_BIT_SINGLE;
-
- if (flags & mask)
- return 0;
- /* true if zero or exactly one bit set */
- return (flags & (~flags + 1)) == flags;
-}
/* root-item.c */
int btrfs_find_root_ref(struct btrfs_root *tree_root,