[PATCH] x86/mm/pat: use DEFINE_SHOW_ATTRIBUTE to simplify cpastats

* [PATCH] x86/mm/pat: use DEFINE_SHOW_ATTRIBUTE to simplify cpastats
@ 2022-09-15  2:26 Liu Shixin
  0 siblings, 0 replies; only message in thread
From: Liu Shixin @ 2022-09-15  2:26 UTC (permalink / raw)
  To: Dave Hansen, Andy Lutomirski, Peter Zijlstra, Thomas Gleixner,
	Ingo Molnar, Borislav Petkov, x86, H. Peter Anvin
  Cc: linux-kernel, Liu Shixin

Use DEFINE_SHOW_ATTRIBUTE helper macro to simplify the code.

Signed-off-by: Liu Shixin <liushixin2@huawei.com>
---
 arch/x86/mm/pat/set_memory.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/arch/x86/mm/pat/set_memory.c b/arch/x86/mm/pat/set_memory.c
index 1a2d6376251c..b68408ffa8df 100644
--- a/arch/x86/mm/pat/set_memory.c
+++ b/arch/x86/mm/pat/set_memory.c
@@ -176,18 +176,7 @@ static int cpastats_show(struct seq_file *m, void *p)
 	seq_printf(m, "4K pages set-checked: %16lu\n", cpa_4k_install);
 	return 0;
 }
-
-static int cpastats_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, cpastats_show, NULL);
-}
-
-static const struct file_operations cpastats_fops = {
-	.open		= cpastats_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(cpastats);
 
 static int __init cpa_stats_init(void)
 {
-- 
2.25.1


^ permalink raw reply related	[flat|nested] only message in thread