Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Andrey Ryabinin <aryabinin@virtuozzo.com>
To:     Andrew Morton <akpm@linux-foundation.org>
Cc:     Matthew Wilcox <willy@infradead.org>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org,
        Andrey Ryabinin <aryabinin@virtuozzo.com>
Subject: [PATCH 1/3] kvfree(): Fix misleading comment.
Date:   Fri, 14 Sep 2018 16:05:10 +0300
Message-Id: <20180914130512.10394-1-aryabinin@virtuozzo.com>
MIME-Version: 1.0
Content-Type: text/plain
Received-SPF: None (protection.outlook.com: virtuozzo.com does not designate
 permitted sender hosts)
SpamDiagnosticOutput: 1:99
SpamDiagnosticMetadata: NSPM
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Sep 2018 13:05:02.0067 (UTC)
X-MS-Exchange-CrossTenant-Network-Message-Id: 4fecbcbb-020b-4764-56c5-08d61a42aee8
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 0bc7f26d-0264-416e-a6fc-8352af79c58f
X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR08MB3261
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

vfree() might sleep if called not in interrupt context.
So does kvfree() too. Fix misleading kvfree()'s comment about
allowed context.

Fixes: 04b8e946075d ("mm/util.c: improve kvfree() kerneldoc")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
---
 mm/util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/util.c b/mm/util.c
index eeac38a64290..7f1f165f46af 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -442,7 +442,7 @@ EXPORT_SYMBOL(kvmalloc_node);
  * It is slightly more efficient to use kfree() or vfree() if you are certain
  * that you know which one to use.
  *
- * Context: Any context except NMI.
+ * Context: Either preemptible task context or not-NMI interrupt.
  */
 void kvfree(const void *addr)
 {
-- 
2.16.4