linux-kernel - [PATCH] kmemleak: Use GFP_ATOMIC for early

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20091009093854.5226.14374.stgit@pc1117.cambridge.arm.com>
Date:	Fri, 09 Oct 2009 10:39:24 +0100
From:	Catalin Marinas <catalin.marinas@....com>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] kmemleak: Use GFP_ATOMIC for early_alloc().

From: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>

We can't use GFP_KERNEL inside rcu_read_lock().

Signed-off-by: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
Signed-off-by: Catalin Marinas <catalin.marinas@....com>
---

Please ignore [PATCH 1/2] with the same subject as it didn't have the
correct author information. Thanks.

 mm/kmemleak.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index 4ea4510..a617518 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -833,7 +833,7 @@ static void early_alloc(struct early_log *log)
 	 */
 	rcu_read_lock();
 	object = create_object((unsigned long)log->ptr, log->size,
-			       log->min_count, GFP_KERNEL);
+			       log->min_count, GFP_ATOMIC);
 	spin_lock_irqsave(&object->lock, flags);
 	for (i = 0; i < log->trace_len; i++)
 		object->trace[i] = log->trace[i];

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/