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authorIngo Molnar <mingo@kernel.org>2017-02-03 11:57:00 +0300
committerIngo Molnar <mingo@kernel.org>2017-03-02 10:42:25 +0300
commitaf8601ad420f6afa6445c927ad9f36d9700d96d6 (patch)
treeb33b49e2aec61c0c3fc666c84d39ee4547ddf42c
parent314ff7851fc8ea66cbf48eaa93d8ebfb5ca084a9 (diff)
downloadlinux-af8601ad420f6afa6445c927ad9f36d9700d96d6.tar.xz
kasan, sched/headers: Uninline kasan_enable/disable_current()
<linux/kasan.h> is a low level header that is included early in affected kernel headers. But it includes <linux/sched.h> which complicates the cleanup of sched.h dependencies. But kasan.h has almost no need for sched.h: its only use of scheduler functionality is in two inline functions which are not used very frequently - so uninline kasan_enable_current() and kasan_disable_current(). Also add a <linux/sched.h> dependency to a .c file that depended on kasan.h including it. This paves the way to remove the <linux/sched.h> include from kasan.h. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
-rw-r--r--include/linux/kasan.h10
-rw-r--r--lib/sbitmap.c1
-rw-r--r--mm/kasan/kasan.c10
3 files changed, 13 insertions, 8 deletions
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index c908b25bf5a5..7793036eac80 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -30,16 +30,10 @@ static inline void *kasan_mem_to_shadow(const void *addr)
}
/* Enable reporting bugs after kasan_disable_current() */
-static inline void kasan_enable_current(void)
-{
- current->kasan_depth++;
-}
+extern void kasan_enable_current(void);
/* Disable reporting bugs for current task */
-static inline void kasan_disable_current(void)
-{
- current->kasan_depth--;
-}
+extern void kasan_disable_current(void);
void kasan_unpoison_shadow(const void *address, size_t size);
diff --git a/lib/sbitmap.c b/lib/sbitmap.c
index 55e11c4b2f3b..60e800e0b5a0 100644
--- a/lib/sbitmap.c
+++ b/lib/sbitmap.c
@@ -15,6 +15,7 @@
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
+#include <linux/sched.h>
#include <linux/random.h>
#include <linux/sbitmap.h>
#include <linux/seq_file.h>
diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c
index 25f0e6521f36..d99312ed7c22 100644
--- a/mm/kasan/kasan.c
+++ b/mm/kasan/kasan.c
@@ -39,6 +39,16 @@
#include "kasan.h"
#include "../slab.h"
+void kasan_enable_current(void)
+{
+ current->kasan_depth++;
+}
+
+void kasan_disable_current(void)
+{
+ current->kasan_depth--;
+}
+
/*
* Poisons the shadow memory for 'size' bytes starting from 'addr'.
* Memory addresses should be aligned to KASAN_SHADOW_SCALE_SIZE.