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proc: faster /proc/cmdline 

Use seq_puts() and skip format string processing.

Link: http://lkml.kernel.org/r/20180309222948.GB3843@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexey Dobriyan 2018-04-10 16:32:01 -07:00 committed by Linus Torvalds
parent 1539d584e4
commit 58c501aab3
1 changed files with 2 additions and 1 deletions
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3
fs/proc/cmdline.c
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@ -6,7 +6,8 @@
static int cmdline_proc_show(struct seq_file *m, void *v)
{
seq_printf(m, "%s\n", saved_command_line);
seq_puts(m, saved_command_line);
seq_putc(m, '\n');
return 0;
}