The patch titled
Subject: sound: query dynamic DEBUG_PAGEALLOC setting
has been removed from the -mm tree. Its filename was
sound-query-dynamic-debug_pagealloc-setting.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Subject: sound: query dynamic DEBUG_PAGEALLOC setting
We can disable debug_pagealloc processing even if the code is compiled
with CONFIG_DEBUG_PAGEALLOC. This patch changes the code to query
whether it is enabled or not in runtime.
[akpm@xxxxxxxxxxxxxxxxxxxx: export _debug_pagealloc_enabled to modules]
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Acked-by: Takashi Iwai <tiwai@xxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Chris Metcalf <cmetcalf@xxxxxxxxxx>
Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_alloc.c | 1 +
sound/drivers/pcsp/pcsp.c | 9 +++++----
2 files changed, 6 insertions(+), 4 deletions(-)
diff -puN mm/page_alloc.c~sound-query-dynamic-debug_pagealloc-setting mm/page_alloc.c
--- a/mm/page_alloc.c~sound-query-dynamic-debug_pagealloc-setting
+++ a/mm/page_alloc.c
@@ -498,6 +498,7 @@ void prep_compound_page(struct page *pag
unsigned int _debug_guardpage_minorder;
bool _debug_pagealloc_enabled __read_mostly
= IS_ENABLED(CONFIG_DEBUG_PAGEALLOC_ENABLE_DEFAULT);
+EXPORT_SYMBOL(_debug_pagealloc_enabled);
bool _debug_guardpage_enabled __read_mostly;
static int __init early_debug_pagealloc(char *buf)
diff -puN sound/drivers/pcsp/pcsp.c~sound-query-dynamic-debug_pagealloc-setting sound/drivers/pcsp/pcsp.c
--- a/sound/drivers/pcsp/pcsp.c~sound-query-dynamic-debug_pagealloc-setting
+++ a/sound/drivers/pcsp/pcsp.c
@@ -14,6 +14,7 @@
#include <linux/input.h>
#include <linux/delay.h>
#include <linux/bitops.h>
+#include <linux/mm.h>
#include "pcsp_input.h"
#include "pcsp.h"
@@ -148,11 +149,11 @@ static int alsa_card_pcsp_init(struct de
return err;
}
-#ifdef CONFIG_DEBUG_PAGEALLOC
/* Well, CONFIG_DEBUG_PAGEALLOC makes the sound horrible. Lets alert */
- printk(KERN_WARNING "PCSP: CONFIG_DEBUG_PAGEALLOC is enabled, "
- "which may make the sound noisy.\n");
-#endif
+ if (debug_pagealloc_enabled()) {
+ printk(KERN_WARNING "PCSP: CONFIG_DEBUG_PAGEALLOC is enabled, "
+ "which may make the sound noisy.\n");
+ }
return 0;
}
_
Patches currently in -mm which might be from iamjoonsoo.kim@xxxxxxx are
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