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fs: proc: Faster /proc/cmdline

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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>
Signed-off-by: Danny Lin <danny@kdrag0n.dev>
This commit is contained in:
Alexey Dobriyan 2018-04-10 16:32:01 -07:00 committed by Adithya R
parent fb6704a8d0
commit 974e2cf043
1 changed files with 2 additions and 1 deletions
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3
fs/proc/cmdline.c
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@ -9,7 +9,8 @@ static char new_command_line[COMMAND_LINE_SIZE];
static int cmdline_proc_show(struct seq_file *m, void *v)
{
seq_printf(m, "%s\n", new_command_line);
seq_puts(m, new_command_line);
seq_putc(m, '\n');
return 0;
}