lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ext4: Add new ext4 trim tracepoints

Browse Source 
Add ext4_trim_extent and ext4_trim_all_free.

Reviewed-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Tao Ma
2011-07-11 00:01:52 -04:00
committed by Theodore Ts'o
parent 169ddc3ec8
commit b3d4c2b10b
2 changed files with 53 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
fs/ext4/mballoc.c
View File

@@ -4780,6 +4780,8 @@ static void ext4_trim_extent(struct super_block *sb, int start, int count,
{
struct ext4_free_extent ex;
trace_ext4_trim_extent(sb, group, start, count);
assert_spin_locked(ext4_group_lock_ptr(sb, group));
ex.fe_start = start;
@@ -4825,6 +4827,8 @@ ext4_trim_all_free(struct super_block *sb, ext4_group_t group,
struct ext4_buddy e4b;
int ret;
trace_ext4_trim_all_free(sb, group, start, max);
ret = ext4_mb_load_buddy(sb, group, &e4b);
if (ret) {
ext4_error(sb, "Error in loading buddy "