[RESEND PATCH v2 8/9] fs: inotify: delete these unnecessary static variables it_zero and it_int_max

From: wenyang . linux
Date: Tue Mar 19 2024 - 11:59:13 EST


From: Wen Yang <wenyang.linux@xxxxxxxxxxx>

Delete unnecessary static variables (it_zero and it_int_max)
and encode them directly in the table entry.

Signed-off-by: Wen Yang <wenyang.linux@xxxxxxxxxxx>
Cc: Eric W. Biederman <ebiederm@xxxxxxxxxxxx>
Cc: Luis Chamberlain <mcgrof@xxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Joel Granados <j.granados@xxxxxxxxxxx>
Cc: Christian Brauner <brauner@xxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Cc: "Darrick J. Wong" <djwong@xxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
fs/notify/inotify/inotify_user.c | 49 +++++++++++++-------------------
1 file changed, 20 insertions(+), 29 deletions(-)

diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 85d8fdd55329..b346d61179ea 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -55,36 +55,27 @@ struct kmem_cache *inotify_inode_mark_cachep __ro_after_init;

#include <linux/sysctl.h>

-static long it_zero = 0;
-static long it_int_max = INT_MAX;
-
static struct ctl_table inotify_table[] = {
- {
- .procname = "max_user_instances",
- .data = &init_user_ns.ucount_max[UCOUNT_INOTIFY_INSTANCES],
- .maxlen = sizeof(long),
- .mode = 0644,
- .proc_handler = proc_doulongvec_minmax,
- .extra1 = &it_zero,
- .extra2 = &it_int_max,
- },
- {
- .procname = "max_user_watches",
- .data = &init_user_ns.ucount_max[UCOUNT_INOTIFY_WATCHES],
- .maxlen = sizeof(long),
- .mode = 0644,
- .proc_handler = proc_doulongvec_minmax,
- .extra1 = &it_zero,
- .extra2 = &it_int_max,
- },
- {
- .procname = "max_queued_events",
- .data = &inotify_max_queued_events,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = proc_dointvec_minmax,
- .extra1 = SYSCTL_ZERO
- },
+ CTL_TABLE_ENTRY_MINMAX("max_user_instances",
+ &init_user_ns.ucount_max[UCOUNT_INOTIFY_INSTANCES],
+ sizeof(long),
+ 0644,
+ proc_doulongvec_minmax,
+ SYSCTL_NUMERIC_ZERO,
+ SYSCTL_NUMERIC_INT_MAX),
+ CTL_TABLE_ENTRY_MINMAX("max_user_watches",
+ &init_user_ns.ucount_max[UCOUNT_INOTIFY_WATCHES],
+ sizeof(long),
+ 0644,
+ proc_doulongvec_minmax,
+ SYSCTL_NUMERIC_ZERO,
+ SYSCTL_NUMERIC_INT_MAX),
+ CTL_TABLE_ENTRY_MIN("max_queued_events",
+ &inotify_max_queued_events,
+ sizeof(int),
+ 0644,
+ proc_dointvec_minmax,
+ SYSCTL_NUMERIC_ZERO),
};

static void __init inotify_sysctls_init(void)
--
2.25.1