The patch titled
Subject: proc: use seq_puts() everywhere
has been added to the -mm tree. Its filename is
proc-use-seq_puts-everywhere.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/proc-use-seq_puts-everywhere.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/proc-use-seq_puts-everywhere.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Subject: proc: use seq_puts() everywhere
seq_printf() without format specifiers == faster seq_puts()
Link: http://lkml.kernel.org/r/20190114200545.GC9680@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/array.c | 16 ++++++++--------
fs/proc/base.c | 2 +-
fs/proc/task_nommu.c | 2 +-
3 files changed, 10 insertions(+), 10 deletions(-)
--- a/fs/proc/array.c~proc-use-seq_puts-everywhere
+++ a/fs/proc/array.c
@@ -343,28 +343,28 @@ static inline void task_seccomp(struct s
#ifdef CONFIG_SECCOMP
seq_put_decimal_ull(m, "\nSeccomp:\t", p->seccomp.mode);
#endif
- seq_printf(m, "\nSpeculation_Store_Bypass:\t");
+ seq_puts(m, "\nSpeculation_Store_Bypass:\t");
switch (arch_prctl_spec_ctrl_get(p, PR_SPEC_STORE_BYPASS)) {
case -EINVAL:
- seq_printf(m, "unknown");
+ seq_puts(m, "unknown");
break;
case PR_SPEC_NOT_AFFECTED:
- seq_printf(m, "not vulnerable");
+ seq_puts(m, "not vulnerable");
break;
case PR_SPEC_PRCTL | PR_SPEC_FORCE_DISABLE:
- seq_printf(m, "thread force mitigated");
+ seq_puts(m, "thread force mitigated");
break;
case PR_SPEC_PRCTL | PR_SPEC_DISABLE:
- seq_printf(m, "thread mitigated");
+ seq_puts(m, "thread mitigated");
break;
case PR_SPEC_PRCTL | PR_SPEC_ENABLE:
- seq_printf(m, "thread vulnerable");
+ seq_puts(m, "thread vulnerable");
break;
case PR_SPEC_DISABLE:
- seq_printf(m, "globally mitigated");
+ seq_puts(m, "globally mitigated");
break;
default:
- seq_printf(m, "vulnerable");
+ seq_puts(m, "vulnerable");
break;
}
seq_putc(m, '\n');
--- a/fs/proc/base.c~proc-use-seq_puts-everywhere
+++ a/fs/proc/base.c
@@ -456,7 +456,7 @@ static int proc_pid_schedstat(struct seq
struct pid *pid, struct task_struct *task)
{
if (unlikely(!sched_info_on()))
- seq_printf(m, "0 0 0\n");
+ seq_puts(m, "0 0 0\n");
else
seq_printf(m, "%llu %llu %lu\n",
(unsigned long long)task->se.sum_exec_runtime,
--- a/fs/proc/task_nommu.c~proc-use-seq_puts-everywhere
+++ a/fs/proc/task_nommu.c
@@ -178,7 +178,7 @@ static int nommu_vma_show(struct seq_fil
seq_file_path(m, file, "");
} else if (mm && is_stack(vma)) {
seq_pad(m, ' ');
- seq_printf(m, "[stack]");
+ seq_puts(m, "[stack]");
}
seq_putc(m, '\n');
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
proc-fix-proc-net-after-setns2.patch
proc-fix-proc-net-after-setns2-v2.patch
mm-shuffle-gfp_-flags.patch
proc-return-exit-code-4-for-skipped-tests.patch
proc-read-kernel-cpu-stat-pointer-once.patch
proc-calculate-end-pointer-for-proc-lookup-at-compile-time.patch
proc-use-seq_puts-everywhere.patch
