The patch titled
Subject: ocfs2/cluster: fix memory leak in o2hb_region_release
has been added to the -mm tree. Its filename is
ocfs2-cluster-fix-memory-leak-in-o2hb_region_release.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ocfs2-cluster-fix-memory-leak-in-o2hb_region_release.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ocfs2-cluster-fix-memory-leak-in-o2hb_region_release.patch
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------------------------------------------------------
From: Joseph Qi <joseph.qi@xxxxxxxxxx>
Subject: ocfs2/cluster: fix memory leak in o2hb_region_release
o2hb_region_release currently doesn't free o2hb_debug_buf
hr_db_elapsed_time and hr_db_pinned malloced in o2hb_debug_create. Also
we should call debugfs_remove before freeing its data, to prevent the risk
accessing debugfs rightly after its data has been freed.
Signed-off-by: Joseph Qi <joseph.qi@xxxxxxxxxx>
Reviewed-by: Jiufei Xue <xuejiufei@xxxxxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/cluster/heartbeat.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff -puN fs/ocfs2/cluster/heartbeat.c~ocfs2-cluster-fix-memory-leak-in-o2hb_region_release fs/ocfs2/cluster/heartbeat.c
--- a/fs/ocfs2/cluster/heartbeat.c~ocfs2-cluster-fix-memory-leak-in-o2hb_region_release
+++ a/fs/ocfs2/cluster/heartbeat.c
@@ -1254,15 +1254,15 @@ static const struct file_operations o2hb
void o2hb_exit(void)
{
- kfree(o2hb_db_livenodes);
- kfree(o2hb_db_liveregions);
- kfree(o2hb_db_quorumregions);
- kfree(o2hb_db_failedregions);
debugfs_remove(o2hb_debug_failedregions);
debugfs_remove(o2hb_debug_quorumregions);
debugfs_remove(o2hb_debug_liveregions);
debugfs_remove(o2hb_debug_livenodes);
debugfs_remove(o2hb_debug_dir);
+ kfree(o2hb_db_livenodes);
+ kfree(o2hb_db_liveregions);
+ kfree(o2hb_db_quorumregions);
+ kfree(o2hb_db_failedregions);
}
static struct dentry *o2hb_debug_create(const char *name, struct dentry *dir,
@@ -1438,13 +1438,15 @@ static void o2hb_region_release(struct c
kfree(reg->hr_slots);
- kfree(reg->hr_db_regnum);
- kfree(reg->hr_db_livenodes);
debugfs_remove(reg->hr_debug_livenodes);
debugfs_remove(reg->hr_debug_regnum);
debugfs_remove(reg->hr_debug_elapsed_time);
debugfs_remove(reg->hr_debug_pinned);
debugfs_remove(reg->hr_debug_dir);
+ kfree(reg->hr_db_livenodes);
+ kfree(reg->hr_db_regnum);
+ kfree(reg->hr_debug_elapsed_time);
+ kfree(reg->hr_debug_pinned);
spin_lock(&o2hb_live_lock);
list_del(®->hr_all_item);
_
Patches currently in -mm which might be from joseph.qi@xxxxxxxxxx are
ocfs2-cluster-fix-memory-leak-in-o2hb_region_release.patch
ocfs2-dlm-fix-race-between-convert-and-recovery.patch
ocfs2-dlm-fix-race-between-convert-and-recovery-v2.patch
ocfs2-dlm-fix-race-between-convert-and-recovery-v3.patch
ocfs2-dlm-fix-bug-in-dlm_move_lockres_to_recovery_list.patch
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