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authorWang Shilong <wangsl.fnst@cn.fujitsu.com>2013-08-09 09:25:36 +0400
committerChris Mason <chris.mason@fusionio.com>2013-09-01 16:16:27 +0400
commitb9e9a6cbc6d25b89d8007e5a680319e07921ead8 (patch)
tree600fe0d3d6962bf13d6efbca1ddc9cbcb4f0d06b /fs/btrfs/backref.h
parent742916b885edbc6453b4769458959929746e8e7e (diff)
downloadlinux-b9e9a6cbc6d25b89d8007e5a680319e07921ead8.tar.xz
Btrfs: allocate prelim_ref with a slab allocater
struct __prelim_ref is allocated and freed frequently when walking backref tree, using slab allocater can not only speed up allocating but also detect memory leaks. Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Reviewed-by: Miao Xie <miaox@cn.fujitsu.com> Reviewed-by: Jan Schmidt <list.btrfs@jan-o-sch.net> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>
Diffstat (limited to 'fs/btrfs/backref.h')
-rw-r--r--fs/btrfs/backref.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h
index 8f2e76702932..a910b27a8ad9 100644
--- a/fs/btrfs/backref.h
+++ b/fs/btrfs/backref.h
@@ -72,4 +72,6 @@ int btrfs_find_one_extref(struct btrfs_root *root, u64 inode_objectid,
struct btrfs_inode_extref **ret_extref,
u64 *found_off);
+int __init btrfs_prelim_ref_init(void);
+void btrfs_prelim_ref_exit(void);
#endif