linux-kernel - [PATCH] proc: use "unsigned int" in /proc/stat hook

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Message-ID: <20180627200710.GC18434@avx2>
Date:   Wed, 27 Jun 2018 23:07:10 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     akpm@...ux-foundation.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] proc: use "unsigned int" in /proc/stat hook

Number of CPUs is never high enough to force 64-bit arithmetic.
Save couple of bytes on x86_64.

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

 fs/proc/stat.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -183,7 +183,7 @@ static int show_stat(struct seq_file *p, void *v)
 
 static int stat_open(struct inode *inode, struct file *file)
 {
-	size_t size = 1024 + 128 * num_online_cpus();
+	unsigned int size = 1024 + 128 * num_online_cpus();
 
 	/* minimum size to display an interrupt count : 2 bytes */
 	size += 2 * nr_irqs;