diff options
| author | Alexey Dobriyan <adobriyan@gmail.com> | 2018-02-06 15:37:24 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-06 18:32:43 -0800 |
| commit | efb1a57d90cae6af1ddd32f1b920c924a711aba5 (patch) | |
| tree | 6aa5fba9d4240e0a171eb2ac9bfc9d64aae7aa2e /fs/proc | |
| parent | 53f63345d893df36b58e81ddb3d11dcd2e9cc966 (diff) | |
fs/proc: use __ro_after_init
/proc/self inode numbers, value of proc_inode_cache and st_nlink of
/proc/$TGID are fixed constants.
Link: http://lkml.kernel.org/r/20180103184707.GA31849@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc')
| -rw-r--r-- | fs/proc/base.c | 5 | ||||
| -rw-r--r-- | fs/proc/inode.c | 3 | ||||
| -rw-r--r-- | fs/proc/self.c | 3 | ||||
| -rw-r--r-- | fs/proc/thread_self.c | 3 |
4 files changed, 9 insertions, 5 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index a3efc2427c74..9298324325ed 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -75,6 +75,7 @@ #include <linux/ptrace.h> #include <linux/tracehook.h> #include <linux/printk.h> +#include <linux/cache.h> #include <linux/cgroup.h> #include <linux/cpuset.h> #include <linux/audit.h> @@ -112,8 +113,8 @@ * in /proc for a task before it execs a suid executable. */ -static u8 nlink_tid; -static u8 nlink_tgid; +static u8 nlink_tid __ro_after_init; +static u8 nlink_tgid __ro_after_init; struct pid_entry { const char *name; diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 8dacaabb9f37..c5c8e7af5520 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -5,6 +5,7 @@ * Copyright (C) 1991, 1992 Linus Torvalds */ +#include <linux/cache.h> #include <linux/time.h> #include <linux/proc_fs.h> #include <linux/kernel.h> @@ -52,7 +53,7 @@ static void proc_evict_inode(struct inode *inode) } } -static struct kmem_cache * proc_inode_cachep; +static struct kmem_cache *proc_inode_cachep __ro_after_init; static struct inode *proc_alloc_inode(struct super_block *sb) { diff --git a/fs/proc/self.c b/fs/proc/self.c index d30627aa440b..4d7d061696b3 100644 --- a/fs/proc/self.c +++ b/fs/proc/self.c @@ -1,4 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 +#include <linux/cache.h> #include <linux/sched.h> #include <linux/slab.h> #include <linux/pid_namespace.h> @@ -30,7 +31,7 @@ static const struct inode_operations proc_self_inode_operations = { .get_link = proc_self_get_link, }; -static unsigned self_inum; +static unsigned self_inum __ro_after_init; int proc_setup_self(struct super_block *s) { diff --git a/fs/proc/thread_self.c b/fs/proc/thread_self.c index 6c1a54716337..9d2efaca499f 100644 --- a/fs/proc/thread_self.c +++ b/fs/proc/thread_self.c @@ -1,4 +1,5 @@ // SPDX-License-Identifier: GPL-2.0 +#include <linux/cache.h> #include <linux/sched.h> #include <linux/slab.h> #include <linux/pid_namespace.h> @@ -30,7 +31,7 @@ static const struct inode_operations proc_thread_self_inode_operations = { .get_link = proc_thread_self_get_link, }; -static unsigned thread_self_inum; +static unsigned thread_self_inum __ro_after_init; int proc_setup_thread_self(struct super_block *s) { |