xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Btrfs: allocate prelim_ref with a slab allocater

Browse Source 
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>
This commit is contained in:
Wang Shilong
2013-08-09 13:25:36 +08:00
committed by Chris Mason
parent 742916b885
commit b9e9a6cbc6
3 changed files with 37 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
fs/btrfs/super.c
View File

@@ -56,6 +56,7 @@
#include "rcu-string.h"
#include "dev-replace.h"
#include "free-space-cache.h"
#include "backref.h"
#include "tests/btrfs-tests.h"
#define CREATE_TRACE_POINTS
@@ -1810,6 +1811,10 @@ static int __init init_btrfs_fs(void)
if (err)
goto free_auto_defrag;
err = btrfs_prelim_ref_init();
if (err)
goto free_prelim_ref;
err = btrfs_interface_init();
if (err)
goto free_delayed_ref;
@@ -1830,6 +1835,8 @@ static int __init init_btrfs_fs(void)
unregister_ioctl:
btrfs_interface_exit();
free_prelim_ref:
btrfs_prelim_ref_exit();
free_delayed_ref:
btrfs_delayed_ref_exit();
free_auto_defrag:
@@ -1856,6 +1863,7 @@ static void __exit exit_btrfs_fs(void)
btrfs_delayed_ref_exit();
btrfs_auto_defrag_exit();
btrfs_delayed_inode_exit();
btrfs_prelim_ref_exit();
ordered_data_exit();
extent_map_exit();
extent_io_exit();