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authorArne Jansen <sensille@gmx.net>2011-09-13 09:18:10 (GMT)
committerJan Schmidt <list.btrfs@jan-o-sch.net>2012-07-10 13:14:42 (GMT)
commit2f38b3e1900634e64a186873b3388b1bf85dabc0 (patch)
tree21017a51174be9ba31696e4e4c8daa18ce2d59f8 /fs/btrfs/ctree.h
parent630dc772ea51bca3ec6fac609f450cbe0cafd1d6 (diff)
downloadlinux-fsl-qoriq-2f38b3e1900634e64a186873b3388b1bf85dabc0.tar.xz
Btrfs: add helper for tree enumeration
Often no exact match is wanted but just the next lower or higher item. There's a lot of duplicated code throughout btrfs to deal with the corner cases. This patch adds a helper function that can facilitate searching. Signed-off-by: Arne Jansen <sensille@gmx.net>
Diffstat (limited to 'fs/btrfs/ctree.h')
-rw-r--r--fs/btrfs/ctree.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 33088b0..27cf995 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2856,6 +2856,9 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root
ins_len, int cow);
int btrfs_search_old_slot(struct btrfs_root *root, struct btrfs_key *key,
struct btrfs_path *p, u64 time_seq);
+int btrfs_search_slot_for_read(struct btrfs_root *root,
+ struct btrfs_key *key, struct btrfs_path *p,
+ int find_higher, int return_any);
int btrfs_realloc_node(struct btrfs_trans_handle *trans,
struct btrfs_root *root, struct extent_buffer *parent,
int start_slot, int cache_only, u64 *last_ret,