summaryrefslogtreecommitdiffstats
path: root/fs/btrfs/btrfs_inode.h
diff options
context:
space:
mode:
authorDaniel Vetter <daniel.vetter@ffwll.ch>2013-12-09 09:17:02 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-12-09 09:19:14 +0100
commitf7698ba75fa283435f5077b9dfb4319d28b9de9a (patch)
tree4bc16a615a35baaf2b482de81cd256a69067ff72 /fs/btrfs/btrfs_inode.h
parent798183c54799fbe1e5a5bfabb3a8c0505ffd2149 (diff)
parent374b105797c3d4f29c685f3be535c35f5689b30e (diff)
Merge tag 'v3.13-rc3' into drm-intel-next-queued
Linux 3.13-rc3 I need a backmerge for two reasons: - For merging the ppgtt patches from Ben I need to pull in the bdw support. - We now have duplicated calls to intel_uncore_forcewake_reset in the setup code to due 2 different patches merged into -next and 3.13. The conflict is silen so I need the merge to be able to apply Deepak's fixup patch. Conflicts: drivers/gpu/drm/i915/intel_display.c Trivial conflict, it doesn't even show up in the merge diff. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'fs/btrfs/btrfs_inode.h')
-rw-r--r--fs/btrfs/btrfs_inode.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 71f074e1870..ac0b39db27d 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -19,6 +19,7 @@
#ifndef __BTRFS_I__
#define __BTRFS_I__
+#include <linux/hash.h>
#include "extent_map.h"
#include "extent_io.h"
#include "ordered-data.h"
@@ -179,6 +180,25 @@ static inline struct btrfs_inode *BTRFS_I(struct inode *inode)
return container_of(inode, struct btrfs_inode, vfs_inode);
}
+static inline unsigned long btrfs_inode_hash(u64 objectid,
+ const struct btrfs_root *root)
+{
+ u64 h = objectid ^ (root->objectid * GOLDEN_RATIO_PRIME);
+
+#if BITS_PER_LONG == 32
+ h = (h >> 32) ^ (h & 0xffffffff);
+#endif
+
+ return (unsigned long)h;
+}
+
+static inline void btrfs_insert_inode_hash(struct inode *inode)
+{
+ unsigned long h = btrfs_inode_hash(inode->i_ino, BTRFS_I(inode)->root);
+
+ __insert_inode_hash(inode, h);
+}
+
static inline u64 btrfs_ino(struct inode *inode)
{
u64 ino = BTRFS_I(inode)->location.objectid;