[PATCH -next] gfs2: use kmem_cache_free() instead of kfree()

[Wei Yongjun]

memory allocated by kmem_cache_alloc() should be freed using
kmem_cache_free(), not kfree().

Fixes: 7d6eec37a105 ("gfs2: Allocate bufdata object before taking log lock")
Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>
---
 fs/gfs2/trans.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index c50de22d7cbf..1b47d08ac4fb 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -206,7 +206,7 @@ void gfs2_trans_add_data(struct gfs2_glock *gl, struct 
buffer_head *bh)
        }
        gfs2_log_lock(sdp);
        if (bh->b_private) {
-               kfree(bd);
+               kmem_cache_free(gfs2_bufdata_cachep, bd);
                bd = bh->b_private;
        } else {
                bh->b_private = bd;
@@ -246,12 +246,12 @@ void gfs2_trans_add_meta(struct gfs2_glock *gl, struct 
buffer_head *bh)
        }
        gfs2_log_lock(sdp);
        if (bh->b_private) {
-               kfree(bd);
+               kmem_cache_free(gfs2_bufdata_cachep, bd);
                bd = bh->b_private;
        } else {
                lock_page(bh->b_page);
                if (bh->b_private) {
-                       kfree(bd);
+                       kmem_cache_free(gfs2_bufdata_cachep, bd);
                        bd = bh->b_private;
                } else {
                        bh->b_private = bd;