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* [PATCH -next] gfs2: use kmem_cache_free() instead of kfree()
@ 2021-04-09  8:29 ` Wei Yongjun
  0 siblings, 0 replies; 4+ messages in thread
From: Wei Yongjun @ 2021-04-09  8:29 UTC (permalink / raw)
  To: weiyongjun1, Bob Peterson, Andreas Gruenbacher
  Cc: cluster-devel, linux-kernel, kernel-janitors, Hulk Robot

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 <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@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;


^ permalink raw reply related	[flat|nested] 4+ messages in thread

* [Cluster-devel] [PATCH -next] gfs2: use kmem_cache_free() instead of kfree()
@ 2021-04-09  8:29 ` Wei Yongjun
  0 siblings, 0 replies; 4+ messages in thread
From: Wei Yongjun @ 2021-04-09  8:29 UTC (permalink / raw)
  To: cluster-devel.redhat.com

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 <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@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;




^ permalink raw reply related	[flat|nested] 4+ messages in thread

* Re: [PATCH -next] gfs2: use kmem_cache_free() instead of kfree()
  2021-04-09  8:29 ` [Cluster-devel] " Wei Yongjun
@ 2021-04-09  8:34   ` Andreas Grünbacher
  -1 siblings, 0 replies; 4+ messages in thread
From: Andreas Grünbacher @ 2021-04-09  8:34 UTC (permalink / raw)
  To: Wei Yongjun
  Cc: Bob Peterson, Andreas Gruenbacher, cluster-devel,
	Linux Kernel Mailing List, kernel-janitors, Hulk Robot

Hi,

Am Fr., 9. Apr. 2021 um 10:20 Uhr schrieb Wei Yongjun <weiyongjun1@huawei.com>:
> memory allocated by kmem_cache_alloc() should be freed using
> kmem_cache_free(), not kfree().

thanks for the patch, that's true. This patch has turned out to have
other problems as well, so we've pulled it and Bob is currently
investigating.

Andreas

^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Cluster-devel] [PATCH -next] gfs2: use kmem_cache_free() instead of kfree()
@ 2021-04-09  8:34   ` Andreas Grünbacher
  0 siblings, 0 replies; 4+ messages in thread
From: Andreas Grünbacher @ 2021-04-09  8:34 UTC (permalink / raw)
  To: cluster-devel.redhat.com

Hi,

Am Fr., 9. Apr. 2021 um 10:20 Uhr schrieb Wei Yongjun <weiyongjun1@huawei.com>:
> memory allocated by kmem_cache_alloc() should be freed using
> kmem_cache_free(), not kfree().

thanks for the patch, that's true. This patch has turned out to have
other problems as well, so we've pulled it and Bob is currently
investigating.

Andreas



^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2021-04-09  8:34 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-04-09  8:29 [PATCH -next] gfs2: use kmem_cache_free() instead of kfree() Wei Yongjun
2021-04-09  8:29 ` [Cluster-devel] " Wei Yongjun
2021-04-09  8:34 ` Andreas Grünbacher
2021-04-09  8:34   ` [Cluster-devel] " Andreas Grünbacher

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