From: Christoph Lameter <clameter@sgi.com>
Date: Wed, 9 May 2007 09:32:43 +0000 (-0700)
Subject: SLUB: move tracking definitions and check_valid_pointer() away from debug code
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=02cbc874463924de2c3403379b698bce3cd277a5;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

SLUB: move tracking definitions and check_valid_pointer() away from debug code

Move the tracking definitions and the check_valid_pointer() function away from
the debugging related functions.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/mm/slub.c b/mm/slub.c
index dfbd0d874a00..b9e05366afda 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -195,6 +195,18 @@ static enum {
 static DECLARE_RWSEM(slub_lock);
 LIST_HEAD(slab_caches);
 
+/*
+ * Tracking user of a slab.
+ */
+struct track {
+	void *addr;		/* Called from address */
+	int cpu;		/* Was running on cpu */
+	int pid;		/* Pid context */
+	unsigned long when;	/* When did the operation occur */
+};
+
+enum track_item { TRACK_ALLOC, TRACK_FREE };
+
 #ifdef CONFIG_SYSFS
 static int sysfs_slab_add(struct kmem_cache *);
 static int sysfs_slab_alias(struct kmem_cache *, const char *);
@@ -223,6 +235,23 @@ static inline struct kmem_cache_node *get_node(struct kmem_cache *s, int node)
 #endif
 }
 
+static inline int check_valid_pointer(struct kmem_cache *s,
+				struct page *page, const void *object)
+{
+	void *base;
+
+	if (!object)
+		return 1;
+
+	base = page_address(page);
+	if (object < base || object >= base + s->objects * s->size ||
+		(object - base) % s->size) {
+		return 0;
+	}
+
+	return 1;
+}
+
 /*
  * Slow version of get and set free pointer.
  *
@@ -290,18 +319,6 @@ static void print_section(char *text, u8 *addr, unsigned int length)
 	}
 }
 
-/*
- * Tracking user of a slab.
- */
-struct track {
-	void *addr;		/* Called from address */
-	int cpu;		/* Was running on cpu */
-	int pid;		/* Pid context */
-	unsigned long when;	/* When did the operation occur */
-};
-
-enum track_item { TRACK_ALLOC, TRACK_FREE };
-
 static struct track *get_track(struct kmem_cache *s, void *object,
 	enum track_item alloc)
 {
@@ -436,23 +453,6 @@ static int check_bytes(u8 *start, unsigned int value, unsigned int bytes)
 	return 1;
 }
 
-static inline int check_valid_pointer(struct kmem_cache *s,
-				struct page *page, const void *object)
-{
-	void *base;
-
-	if (!object)
-		return 1;
-
-	base = page_address(page);
-	if (object < base || object >= base + s->objects * s->size ||
-		(object - base) % s->size) {
-		return 0;
-	}
-
-	return 1;
-}
-
 /*
  * Object layout:
  *