diff options
| author | Alexey Dobriyan <adobriyan@gmail.com> | 2022-09-20 20:35:23 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-10-04 00:21:45 +0300 |
| commit | ef1d61781bc6708ccc4a21262cc80a7dad952e04 (patch) | |
| tree | 8718e18c0d48dcd197f78ab1924ac7d21cab0ac5 /fs/proc/page.c | |
| parent | da6f79164e98de4ab3f2fdeea4875207fe282014 (diff) | |
| download | linux-ef1d61781bc6708ccc4a21262cc80a7dad952e04.tar.xz | |
proc: mark more files as permanent
Mark
/proc/devices
/proc/kpagecount
/proc/kpageflags
/proc/kpagecgroup
/proc/loadavg
/proc/meminfo
/proc/softirqs
/proc/uptime
/proc/version
as permanent /proc entries, saving alloc/free and some list/spinlock ops
per use.
These files are never removed by the kernel so it is OK to mark them.
Link: https://lkml.kernel.org/r/Yyn527DzDMa+r0Yj@localhost.localdomain
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'fs/proc/page.c')
| -rw-r--r-- | fs/proc/page.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/proc/page.c b/fs/proc/page.c index a2873a617ae8..f2273b164535 100644 --- a/fs/proc/page.c +++ b/fs/proc/page.c @@ -91,6 +91,7 @@ static ssize_t kpagecount_read(struct file *file, char __user *buf, } static const struct proc_ops kpagecount_proc_ops = { + .proc_flags = PROC_ENTRY_PERMANENT, .proc_lseek = mem_lseek, .proc_read = kpagecount_read, }; @@ -268,6 +269,7 @@ static ssize_t kpageflags_read(struct file *file, char __user *buf, } static const struct proc_ops kpageflags_proc_ops = { + .proc_flags = PROC_ENTRY_PERMANENT, .proc_lseek = mem_lseek, .proc_read = kpageflags_read, }; @@ -322,6 +324,7 @@ static ssize_t kpagecgroup_read(struct file *file, char __user *buf, } static const struct proc_ops kpagecgroup_proc_ops = { + .proc_flags = PROC_ENTRY_PERMANENT, .proc_lseek = mem_lseek, .proc_read = kpagecgroup_read, }; |