blob: a644ac0db6fd8b136d60c94c7c8f4e95da605d9f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
Subject: mm: Enable SLUB for RT
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 25 Oct 2012 10:32:35 +0100
Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/5.2/older/patches-5.2.10-rt5.tar.xz
Avoid the memory allocation in IRQ section
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[bigeasy: factor out everything except the kcalloc() workaorund ]
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
mm/slub.c | 7 +++++++
1 file changed, 7 insertions(+)
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3721,6 +3721,11 @@ static void list_slab_objects(struct kme
const char *text)
{
#ifdef CONFIG_SLUB_DEBUG
+#ifdef CONFIG_PREEMPT_RT_BASE
+ /* XXX move out of irq-off section */
+ slab_err(s, page, text, s->name);
+#else
+
void *addr = page_address(page);
void *p;
unsigned long *map = bitmap_zalloc(page->objects, GFP_ATOMIC);
@@ -3740,8 +3745,10 @@ static void list_slab_objects(struct kme
slab_unlock(page);
bitmap_free(map);
#endif
+#endif
}
+
/*
* Attempt to free all partial slabs on a node.
* This is called from __kmem_cache_shutdown(). We must take list_lock
|
