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| author | Wang Shilong | 2013-08-09 07:25:36 +0200 |
|---|---|---|
| committer | Chris Mason | 2013-09-01 14:16:27 +0200 |
| commit | b9e9a6cbc6d25b89d8007e5a680319e07921ead8 (patch) | |
| tree | 600fe0d3d6962bf13d6efbca1ddc9cbcb4f0d06b /fs/btrfs/super.c | |
| parent | Btrfs: pass gfp_t to __add_prelim_ref() to avoid always using GFP_ATOMIC (diff) | |
| download | kernel-qcow2-linux-b9e9a6cbc6d25b89d8007e5a680319e07921ead8.tar.gz kernel-qcow2-linux-b9e9a6cbc6d25b89d8007e5a680319e07921ead8.tar.xz kernel-qcow2-linux-b9e9a6cbc6d25b89d8007e5a680319e07921ead8.zip | |
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/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 4d5d0f3eb0d8..3aab10ce63e8 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -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(); |