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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>
27 lines
599 B
C
27 lines
599 B
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/fs.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/utsname.h>
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#include "internal.h"
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static int version_proc_show(struct seq_file *m, void *v)
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{
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seq_printf(m, linux_proc_banner,
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utsname()->sysname,
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utsname()->release,
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utsname()->version);
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return 0;
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}
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static int __init proc_version_init(void)
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{
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struct proc_dir_entry *pde;
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pde = proc_create_single("version", 0, NULL, version_proc_show);
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pde_make_permanent(pde);
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return 0;
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}
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fs_initcall(proc_version_init);
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