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authorAndy Lutomirski <luto@kernel.org>2016-04-26 09:39:06 -0700
committerIngo Molnar <mingo@kernel.org>2016-04-28 11:44:19 +0200
commitf98db6013c557c216da5038d9c52045be55cd039 (patch)
treeadd571696b617410646e8fe4e7718f165c3a56bd /include/linux/mmu_context.h
parent8efd755ac2fe262d4c8d5c9bbe054bb67dae93da (diff)
downloadop-kernel-dev-f98db6013c557c216da5038d9c52045be55cd039.zip
op-kernel-dev-f98db6013c557c216da5038d9c52045be55cd039.tar.gz
sched/core: Add switch_mm_irqs_off() and use it in the scheduler
By default, this is the same thing as switch_mm(). x86 will override it as an optimization. Signed-off-by: Andy Lutomirski <luto@kernel.org> Reviewed-by: Borislav Petkov <bp@suse.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/df401df47bdd6be3e389c6f1e3f5310d70e81b2c.1461688545.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/mmu_context.h')
-rw-r--r--include/linux/mmu_context.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/mmu_context.h b/include/linux/mmu_context.h
index 70fffeb..a444178 100644
--- a/include/linux/mmu_context.h
+++ b/include/linux/mmu_context.h
@@ -1,9 +1,16 @@
#ifndef _LINUX_MMU_CONTEXT_H
#define _LINUX_MMU_CONTEXT_H
+#include <asm/mmu_context.h>
+
struct mm_struct;
void use_mm(struct mm_struct *mm);
void unuse_mm(struct mm_struct *mm);
+/* Architectures that care about IRQ state in switch_mm can override this. */
+#ifndef switch_mm_irqs_off
+# define switch_mm_irqs_off switch_mm
+#endif
+
#endif
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