From: Luis Chamberlain <mcgrof@kernel.org>
To: akpm@linux-foundation.org, keescook@chromium.org,
yzaikin@google.com, nixiaoming@huawei.com, ebiederm@xmission.com,
peterz@infradead.org, gregkh@linuxfoundation.org, pjt@google.com,
liu.hailong6@zte.com.cn, andriy.shevchenko@linux.intel.com,
sre@kernel.org, penguin-kernel@i-love.sakura.ne.jp,
pmladek@suse.com, senozhatsky@chromium.org, wangqing@vivo.com,
bcrl@kvack.org, viro@zeniv.linux.org.uk, jack@suse.cz,
amir73il@gmail.com
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
Luis Chamberlain <mcgrof@kernel.org>
Subject: [PATCH v2 7/9] sysctl: use SYSCTL_ZERO to replace some static int zero uses
Date: Tue, 23 Nov 2021 12:23:45 -0800 [thread overview]
Message-ID: <20211123202347.818157-8-mcgrof@kernel.org> (raw)
In-Reply-To: <20211123202347.818157-1-mcgrof@kernel.org>
From: Xiaoming Ni <nixiaoming@huawei.com>
Use the variable SYSCTL_ZERO to replace some static int boundary
variables with a value of 0 (minolduid, min_extfrag_threshold,
min_wakeup_granularity_ns).
Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
---
kernel/sysctl.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 03bbd26d4df0..597ab5ad4879 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -122,7 +122,7 @@ static const unsigned long dirty_bytes_min = 2 * PAGE_SIZE;
/* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */
static const int maxolduid = 65535;
-static const int minolduid;
+/* minolduid is SYSCTL_ZERO */
static const int ngroups_max = NGROUPS_MAX;
static const int cap_last_cap = CAP_LAST_CAP;
@@ -170,7 +170,7 @@ int sysctl_legacy_va_layout;
#endif
#ifdef CONFIG_COMPACTION
-static const int min_extfrag_threshold;
+/* min_extfrag_threshold is SYSCTL_ZERO */;
static const int max_extfrag_threshold = 1000;
#endif
@@ -2175,7 +2175,7 @@ static struct ctl_table kern_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
- .extra1 = (void *)&minolduid,
+ .extra1 = SYSCTL_ZERO,
.extra2 = (void *)&maxolduid,
},
{
@@ -2184,7 +2184,7 @@ static struct ctl_table kern_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
- .extra1 = (void *)&minolduid,
+ .extra1 = SYSCTL_ZERO,
.extra2 = (void *)&maxolduid,
},
#ifdef CONFIG_S390
@@ -2758,7 +2758,7 @@ static struct ctl_table vm_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
- .extra1 = (void *)&min_extfrag_threshold,
+ .extra1 = SYSCTL_ZERO,
.extra2 = (void *)&max_extfrag_threshold,
},
{
@@ -3070,7 +3070,7 @@ static struct ctl_table fs_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
- .extra1 = (void *)&minolduid,
+ .extra1 = SYSCTL_ZERO,
.extra2 = (void *)&maxolduid,
},
{
@@ -3079,7 +3079,7 @@ static struct ctl_table fs_table[] = {
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
- .extra1 = (void *)&minolduid,
+ .extra1 = SYSCTL_ZERO,
.extra2 = (void *)&maxolduid,
},
#ifdef CONFIG_FILE_LOCKING
--
2.33.0
next prev parent reply other threads:[~2021-11-23 20:24 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-23 20:23 [PATCH v2 0/9] sysctl: first set of kernel/sysctl cleanups Luis Chamberlain
2021-11-23 20:23 ` [PATCH v2 1/9] sysctl: add a new register_sysctl_init() interface Luis Chamberlain
2021-11-25 16:14 ` Petr Mladek
2021-11-29 21:01 ` Luis Chamberlain
2021-11-23 20:23 ` [PATCH v2 2/9] sysctl: Move some boundary constants from sysctl.c to sysctl_vals Luis Chamberlain
2021-11-24 4:51 ` Eric W. Biederman
2021-11-24 7:05 ` Xiaoming Ni
2021-11-24 17:38 ` Eric W. Biederman
2021-11-24 23:12 ` Luis Chamberlain
2021-11-23 20:23 ` [PATCH v2 3/9] hung_task: Move hung_task sysctl interface to hung_task.c Luis Chamberlain
2021-11-26 9:46 ` Petr Mladek
2021-11-23 20:23 ` [PATCH v2 4/9] watchdog: move watchdog sysctl interface to watchdog.c Luis Chamberlain
2021-11-26 9:40 ` Petr Mladek
2021-11-23 20:23 ` [PATCH v2 5/9] sysctl: make ngroups_max const Luis Chamberlain
2021-11-23 20:23 ` [PATCH v2 6/9] sysctl: use const for typically used max/min proc sysctls Luis Chamberlain
2021-11-23 20:23 ` Luis Chamberlain [this message]
2021-11-23 20:23 ` [PATCH v2 8/9] aio: move aio sysctl to aio.c Luis Chamberlain
2021-11-24 9:32 ` Jan Kara
2021-11-23 20:23 ` [PATCH v2 9/9] dnotify: move dnotify sysctl to dnotify.c Luis Chamberlain
2021-11-24 9:31 ` Jan Kara
2021-11-24 0:14 ` [PATCH v2 0/9] sysctl: first set of kernel/sysctl cleanups Andrew Morton
2021-11-24 0:27 ` Luis Chamberlain
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20211123202347.818157-8-mcgrof@kernel.org \
--to=mcgrof@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=amir73il@gmail.com \
--cc=andriy.shevchenko@linux.intel.com \
--cc=bcrl@kvack.org \
--cc=ebiederm@xmission.com \
--cc=gregkh@linuxfoundation.org \
--cc=jack@suse.cz \
--cc=keescook@chromium.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=liu.hailong6@zte.com.cn \
--cc=nixiaoming@huawei.com \
--cc=penguin-kernel@i-love.sakura.ne.jp \
--cc=peterz@infradead.org \
--cc=pjt@google.com \
--cc=pmladek@suse.com \
--cc=senozhatsky@chromium.org \
--cc=sre@kernel.org \
--cc=viro@zeniv.linux.org.uk \
--cc=wangqing@vivo.com \
--cc=yzaikin@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).