linux-kernel - [PATCH] proc: use seq

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Message-ID: <20190114200545.GC9680@avx2>
Date:   Mon, 14 Jan 2019 23:05:45 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     akpm@...ux-foundation.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] proc: use seq_puts() everywhere

seq_printf() without format specifiers == faster seq_puts()

Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
---

 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
+++ b/fs/proc/array.c
@@ -343,28 +343,28 @@ static inline void task_seccomp(struct seq_file *m, struct task_struct *p)
 #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
+++ b/fs/proc/base.c
@@ -456,7 +456,7 @@ static int proc_pid_schedstat(struct seq_file *m, struct pid_namespace *ns,
 			      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
+++ b/fs/proc/task_nommu.c
@@ -178,7 +178,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
 		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');