From: Li zeming <zeming@nfschina.com>
To: mcgrof@kernel.org, keescook@chromium.org, yzaikin@google.com
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
Li zeming <zeming@nfschina.com>
Subject: [PATCH] proc/proc_sysctl: Modify the order of scheduling function calls
Date: Mon, 5 Sep 2022 09:29:25 +0800 [thread overview]
Message-ID: <20220905012925.3117-1-zeming@nfschina.com> (raw)
When the ctl_table_header object is judged to be valid, the scheduling
check is performed again.
Signed-off-by: Li zeming <zeming@nfschina.com>
---
fs/proc/proc_sysctl.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 50ba9e4fb284..36921e2ebeb0 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -1729,11 +1729,10 @@ static void drop_sysctl_table(struct ctl_table_header *header)
void unregister_sysctl_table(struct ctl_table_header * header)
{
int nr_subheaders;
- might_sleep();
-
if (header == NULL)
return;
+ might_sleep();
nr_subheaders = count_subheaders(header->ctl_table_arg);
if (unlikely(nr_subheaders > 1)) {
struct ctl_table_header **subheaders;
--
2.18.2
next reply other threads:[~2022-09-05 1:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-05 1:29 Li zeming [this message]
2022-09-05 3:12 ` [PATCH] proc/proc_sysctl: Modify the order of scheduling function calls Matthew Wilcox
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