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From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, andreyknvl@google.com,
	aryabinin@virtuozzo.com, Branislav.Rankov@arm.com,
	catalin.marinas@arm.com, dvyukov@google.com, elver@google.com,
	eugenis@google.com, glider@google.com, gor@linux.ibm.com,
	kevin.brodsky@arm.com, linux-mm@kvack.org,
	mm-commits@vger.kernel.org, torvalds@linux-foundation.org,
	vincenzo.frascino@arm.com, will.deacon@arm.com
Subject: [patch 43/60] kasan: rename get_alloc/free_info
Date: Tue, 22 Dec 2020 12:02:34 -0800	[thread overview]
Message-ID: <20201222200234.Nu5AUtsvM%akpm@linux-foundation.org> (raw)
In-Reply-To: <20201222115844.d30aaef7df6f5b120d3e0c3d@linux-foundation.org>

From: Andrey Konovalov <andreyknvl@google.com>
Subject: kasan: rename get_alloc/free_info

Rename get_alloc_info() and get_free_info() to kasan_get_alloc_meta() and
kasan_get_free_meta() to better reflect what those do and avoid confusion
with kasan_set_free_info().

No functional changes.

Link: https://lkml.kernel.org/r/27b7c036b754af15a2839e945f6d8bfce32b4c2f.1606162397.git.andreyknvl@google.com
Link: https://linux-review.googlesource.com/id/Ib6e4ba61c8b12112b403d3479a9799ac8fff8de1
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Marco Elver <elver@google.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/kasan/common.c         |   16 ++++++++--------
 mm/kasan/generic.c        |   12 ++++++------
 mm/kasan/hw_tags.c        |    4 ++--
 mm/kasan/kasan.h          |    8 ++++----
 mm/kasan/quarantine.c     |    4 ++--
 mm/kasan/report.c         |   12 ++++++------
 mm/kasan/report_sw_tags.c |    2 +-
 mm/kasan/sw_tags.c        |    4 ++--
 8 files changed, 31 insertions(+), 31 deletions(-)

--- a/mm/kasan/common.c~kasan-rename-get_alloc-free_info
+++ a/mm/kasan/common.c
@@ -180,14 +180,14 @@ size_t kasan_metadata_size(struct kmem_c
 		sizeof(struct kasan_free_meta) : 0);
 }
 
-struct kasan_alloc_meta *get_alloc_info(struct kmem_cache *cache,
-					const void *object)
+struct kasan_alloc_meta *kasan_get_alloc_meta(struct kmem_cache *cache,
+					      const void *object)
 {
 	return (void *)reset_tag(object) + cache->kasan_info.alloc_meta_offset;
 }
 
-struct kasan_free_meta *get_free_info(struct kmem_cache *cache,
-				      const void *object)
+struct kasan_free_meta *kasan_get_free_meta(struct kmem_cache *cache,
+					    const void *object)
 {
 	BUILD_BUG_ON(sizeof(struct kasan_free_meta) > 32);
 	return (void *)reset_tag(object) + cache->kasan_info.free_meta_offset;
@@ -264,13 +264,13 @@ static u8 assign_tag(struct kmem_cache *
 void * __must_check kasan_init_slab_obj(struct kmem_cache *cache,
 						const void *object)
 {
-	struct kasan_alloc_meta *alloc_info;
+	struct kasan_alloc_meta *alloc_meta;
 
 	if (!(cache->flags & SLAB_KASAN))
 		return (void *)object;
 
-	alloc_info = get_alloc_info(cache, object);
-	__memset(alloc_info, 0, sizeof(*alloc_info));
+	alloc_meta = kasan_get_alloc_meta(cache, object);
+	__memset(alloc_meta, 0, sizeof(*alloc_meta));
 
 	if (IS_ENABLED(CONFIG_KASAN_SW_TAGS) || IS_ENABLED(CONFIG_KASAN_HW_TAGS))
 		object = set_tag(object, assign_tag(cache, object, true, false));
@@ -350,7 +350,7 @@ static void *__kasan_kmalloc(struct kmem
 		     KASAN_KMALLOC_REDZONE);
 
 	if (cache->flags & SLAB_KASAN)
-		kasan_set_track(&get_alloc_info(cache, object)->alloc_track, flags);
+		kasan_set_track(&kasan_get_alloc_meta(cache, object)->alloc_track, flags);
 
 	return set_tag(object, tag);
 }
--- a/mm/kasan/generic.c~kasan-rename-get_alloc-free_info
+++ a/mm/kasan/generic.c
@@ -328,7 +328,7 @@ void kasan_record_aux_stack(void *addr)
 {
 	struct page *page = kasan_addr_to_page(addr);
 	struct kmem_cache *cache;
-	struct kasan_alloc_meta *alloc_info;
+	struct kasan_alloc_meta *alloc_meta;
 	void *object;
 
 	if (!(page && PageSlab(page)))
@@ -336,10 +336,10 @@ void kasan_record_aux_stack(void *addr)
 
 	cache = page->slab_cache;
 	object = nearest_obj(cache, page, addr);
-	alloc_info = get_alloc_info(cache, object);
+	alloc_meta = kasan_get_alloc_meta(cache, object);
 
-	alloc_info->aux_stack[1] = alloc_info->aux_stack[0];
-	alloc_info->aux_stack[0] = kasan_save_stack(GFP_NOWAIT);
+	alloc_meta->aux_stack[1] = alloc_meta->aux_stack[0];
+	alloc_meta->aux_stack[0] = kasan_save_stack(GFP_NOWAIT);
 }
 
 void kasan_set_free_info(struct kmem_cache *cache,
@@ -347,7 +347,7 @@ void kasan_set_free_info(struct kmem_cac
 {
 	struct kasan_free_meta *free_meta;
 
-	free_meta = get_free_info(cache, object);
+	free_meta = kasan_get_free_meta(cache, object);
 	kasan_set_track(&free_meta->free_track, GFP_NOWAIT);
 
 	/*
@@ -361,5 +361,5 @@ struct kasan_track *kasan_get_free_track
 {
 	if (*(u8 *)kasan_mem_to_shadow(object) != KASAN_KMALLOC_FREETRACK)
 		return NULL;
-	return &get_free_info(cache, object)->free_track;
+	return &kasan_get_free_meta(cache, object)->free_track;
 }
--- a/mm/kasan/hw_tags.c~kasan-rename-get_alloc-free_info
+++ a/mm/kasan/hw_tags.c
@@ -66,7 +66,7 @@ void kasan_set_free_info(struct kmem_cac
 {
 	struct kasan_alloc_meta *alloc_meta;
 
-	alloc_meta = get_alloc_info(cache, object);
+	alloc_meta = kasan_get_alloc_meta(cache, object);
 	kasan_set_track(&alloc_meta->free_track[0], GFP_NOWAIT);
 }
 
@@ -75,6 +75,6 @@ struct kasan_track *kasan_get_free_track
 {
 	struct kasan_alloc_meta *alloc_meta;
 
-	alloc_meta = get_alloc_info(cache, object);
+	alloc_meta = kasan_get_alloc_meta(cache, object);
 	return &alloc_meta->free_track[0];
 }
--- a/mm/kasan/kasan.h~kasan-rename-get_alloc-free_info
+++ a/mm/kasan/kasan.h
@@ -149,10 +149,10 @@ struct kasan_free_meta {
 #endif
 };
 
-struct kasan_alloc_meta *get_alloc_info(struct kmem_cache *cache,
-					const void *object);
-struct kasan_free_meta *get_free_info(struct kmem_cache *cache,
-					const void *object);
+struct kasan_alloc_meta *kasan_get_alloc_meta(struct kmem_cache *cache,
+						const void *object);
+struct kasan_free_meta *kasan_get_free_meta(struct kmem_cache *cache,
+						const void *object);
 
 void poison_range(const void *address, size_t size, u8 value);
 void unpoison_range(const void *address, size_t size);
--- a/mm/kasan/quarantine.c~kasan-rename-get_alloc-free_info
+++ a/mm/kasan/quarantine.c
@@ -168,7 +168,7 @@ void quarantine_put(struct kmem_cache *c
 	unsigned long flags;
 	struct qlist_head *q;
 	struct qlist_head temp = QLIST_INIT;
-	struct kasan_free_meta *info = get_free_info(cache, object);
+	struct kasan_free_meta *meta = kasan_get_free_meta(cache, object);
 
 	/*
 	 * Note: irq must be disabled until after we move the batch to the
@@ -185,7 +185,7 @@ void quarantine_put(struct kmem_cache *c
 		local_irq_restore(flags);
 		return;
 	}
-	qlist_put(q, &info->quarantine_link, cache->size);
+	qlist_put(q, &meta->quarantine_link, cache->size);
 	if (unlikely(q->bytes > QUARANTINE_PERCPU_SIZE)) {
 		qlist_move_all(q, &temp);
 
--- a/mm/kasan/report.c~kasan-rename-get_alloc-free_info
+++ a/mm/kasan/report.c
@@ -164,12 +164,12 @@ static void describe_object_addr(struct
 static void describe_object(struct kmem_cache *cache, void *object,
 				const void *addr, u8 tag)
 {
-	struct kasan_alloc_meta *alloc_info = get_alloc_info(cache, object);
+	struct kasan_alloc_meta *alloc_meta = kasan_get_alloc_meta(cache, object);
 
 	if (cache->flags & SLAB_KASAN) {
 		struct kasan_track *free_track;
 
-		print_track(&alloc_info->alloc_track, "Allocated");
+		print_track(&alloc_meta->alloc_track, "Allocated");
 		pr_err("\n");
 		free_track = kasan_get_free_track(cache, object, tag);
 		if (free_track) {
@@ -178,14 +178,14 @@ static void describe_object(struct kmem_
 		}
 
 #ifdef CONFIG_KASAN_GENERIC
-		if (alloc_info->aux_stack[0]) {
+		if (alloc_meta->aux_stack[0]) {
 			pr_err("Last potentially related work creation:\n");
-			print_stack(alloc_info->aux_stack[0]);
+			print_stack(alloc_meta->aux_stack[0]);
 			pr_err("\n");
 		}
-		if (alloc_info->aux_stack[1]) {
+		if (alloc_meta->aux_stack[1]) {
 			pr_err("Second to last potentially related work creation:\n");
-			print_stack(alloc_info->aux_stack[1]);
+			print_stack(alloc_meta->aux_stack[1]);
 			pr_err("\n");
 		}
 #endif
--- a/mm/kasan/report_sw_tags.c~kasan-rename-get_alloc-free_info
+++ a/mm/kasan/report_sw_tags.c
@@ -46,7 +46,7 @@ const char *get_bug_type(struct kasan_ac
 	if (page && PageSlab(page)) {
 		cache = page->slab_cache;
 		object = nearest_obj(cache, page, (void *)addr);
-		alloc_meta = get_alloc_info(cache, object);
+		alloc_meta = kasan_get_alloc_meta(cache, object);
 
 		for (i = 0; i < KASAN_NR_FREE_STACKS; i++)
 			if (alloc_meta->free_pointer_tag[i] == tag)
--- a/mm/kasan/sw_tags.c~kasan-rename-get_alloc-free_info
+++ a/mm/kasan/sw_tags.c
@@ -174,7 +174,7 @@ void kasan_set_free_info(struct kmem_cac
 	struct kasan_alloc_meta *alloc_meta;
 	u8 idx = 0;
 
-	alloc_meta = get_alloc_info(cache, object);
+	alloc_meta = kasan_get_alloc_meta(cache, object);
 
 #ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY
 	idx = alloc_meta->free_track_idx;
@@ -191,7 +191,7 @@ struct kasan_track *kasan_get_free_track
 	struct kasan_alloc_meta *alloc_meta;
 	int i = 0;
 
-	alloc_meta = get_alloc_info(cache, object);
+	alloc_meta = kasan_get_alloc_meta(cache, object);
 
 #ifdef CONFIG_KASAN_SW_TAGS_IDENTIFY
 	for (i = 0; i < KASAN_NR_FREE_STACKS; i++) {
_


  parent reply	other threads:[~2020-12-22 20:03 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-22 19:58 incoming Andrew Morton
2020-12-22 20:00 ` [patch 01/60] kasan: drop unnecessary GPL text from comment headers Andrew Morton
2020-12-22 20:00 ` [patch 02/60] kasan: KASAN_VMALLOC depends on KASAN_GENERIC Andrew Morton
2020-12-22 20:00 ` [patch 03/60] kasan: group vmalloc code Andrew Morton
2020-12-22 20:00 ` [patch 04/60] kasan: shadow declarations only for software modes Andrew Morton
2020-12-22 20:00 ` [patch 05/60] kasan: rename (un)poison_shadow to (un)poison_range Andrew Morton
2020-12-22 20:00 ` [patch 06/60] kasan: rename KASAN_SHADOW_* to KASAN_GRANULE_* Andrew Morton
2020-12-22 20:00 ` [patch 07/60] kasan: only build init.c for software modes Andrew Morton
2020-12-22 20:00 ` [patch 08/60] kasan: split out shadow.c from common.c Andrew Morton
2020-12-22 20:00 ` [patch 09/60] kasan: define KASAN_MEMORY_PER_SHADOW_PAGE Andrew Morton
2020-12-22 20:00 ` [patch 10/60] kasan: rename report and tags files Andrew Morton
2020-12-22 20:00 ` [patch 11/60] kasan: don't duplicate config dependencies Andrew Morton
2020-12-22 20:00 ` [patch 12/60] kasan: hide invalid free check implementation Andrew Morton
2020-12-22 20:00 ` [patch 13/60] kasan: decode stack frame only with KASAN_STACK_ENABLE Andrew Morton
2020-12-22 20:00 ` [patch 14/60] kasan, arm64: only init shadow for software modes Andrew Morton
2020-12-22 20:00 ` [patch 15/60] kasan, arm64: only use kasan_depth " Andrew Morton
2020-12-22 20:01 ` [patch 16/60] kasan, arm64: move initialization message Andrew Morton
2020-12-22 20:01 ` [patch 17/60] kasan, arm64: rename kasan_init_tags and mark as __init Andrew Morton
2020-12-22 20:01 ` [patch 18/60] kasan: rename addr_has_shadow to addr_has_metadata Andrew Morton
2020-12-22 20:01 ` [patch 19/60] kasan: rename print_shadow_for_address to print_memory_metadata Andrew Morton
2020-12-22 20:01 ` [patch 20/60] kasan: rename SHADOW layout macros to META Andrew Morton
2020-12-22 20:01 ` [patch 21/60] kasan: separate metadata_fetch_row for each mode Andrew Morton
2020-12-22 20:01 ` [patch 22/60] kasan: introduce CONFIG_KASAN_HW_TAGS Andrew Morton
2020-12-22 20:01 ` [patch 23/60] arm64: enable armv8.5-a asm-arch option Andrew Morton
2020-12-22 20:01 ` [patch 24/60] arm64: mte: add in-kernel MTE helpers Andrew Morton
2020-12-22 20:01 ` [patch 25/60] arm64: mte: reset the page tag in page->flags Andrew Morton
2020-12-22 20:01 ` [patch 26/60] arm64: mte: add in-kernel tag fault handler Andrew Morton
2020-12-22 20:01 ` [patch 27/60] arm64: kasan: allow enabling in-kernel MTE Andrew Morton
2020-12-22 20:01 ` [patch 28/60] arm64: mte: convert gcr_user into an exclude mask Andrew Morton
2020-12-22 20:01 ` [patch 29/60] arm64: mte: switch GCR_EL1 in kernel entry and exit Andrew Morton
2020-12-22 20:01 ` [patch 30/60] kasan, mm: untag page address in free_reserved_area Andrew Morton
2020-12-22 20:01 ` [patch 31/60] arm64: kasan: align allocations for HW_TAGS Andrew Morton
2020-12-22 20:01 ` [patch 32/60] arm64: kasan: add arch layer for memory tagging helpers Andrew Morton
2020-12-22 20:01 ` [patch 33/60] kasan: define KASAN_GRANULE_SIZE for HW_TAGS Andrew Morton
2020-12-22 20:02 ` [patch 34/60] kasan, x86, s390: update undef CONFIG_KASAN Andrew Morton
2020-12-22 20:02 ` [patch 35/60] kasan, arm64: expand CONFIG_KASAN checks Andrew Morton
2020-12-22 20:02 ` [patch 36/60] kasan, arm64: implement HW_TAGS runtime Andrew Morton
2020-12-22 20:02 ` [patch 37/60] kasan, arm64: print report from tag fault handler Andrew Morton
2020-12-22 20:02 ` [patch 38/60] kasan, mm: reset tags when accessing metadata Andrew Morton
2020-12-22 20:02 ` [patch 39/60] kasan, arm64: enable CONFIG_KASAN_HW_TAGS Andrew Morton
2020-12-22 20:02 ` [patch 40/60] kasan: add documentation for hardware tag-based mode Andrew Morton
2020-12-22 20:02 ` [patch 41/60] kselftest/arm64: check GCR_EL1 after context switch Andrew Morton
2020-12-22 20:02 ` [patch 42/60] kasan: simplify quarantine_put call site Andrew Morton
2020-12-22 20:02 ` Andrew Morton [this message]
2020-12-22 20:02 ` [patch 44/60] kasan: introduce set_alloc_info Andrew Morton
2020-12-22 20:02 ` [patch 45/60] kasan, arm64: unpoison stack only with CONFIG_KASAN_STACK Andrew Morton
2020-12-22 20:02 ` [patch 46/60] kasan: allow VMAP_STACK for HW_TAGS mode Andrew Morton
2020-12-22 20:02 ` [patch 47/60] kasan: remove __kasan_unpoison_stack Andrew Morton
2020-12-22 20:02 ` [patch 48/60] kasan: inline kasan_reset_tag for tag-based modes Andrew Morton
2020-12-22 20:02 ` [patch 49/60] kasan: inline random_tag for HW_TAGS Andrew Morton
2020-12-22 20:02 ` [patch 50/60] kasan: open-code kasan_unpoison_slab Andrew Morton
2020-12-22 20:03 ` [patch 51/60] kasan: inline (un)poison_range and check_invalid_free Andrew Morton
2020-12-22 20:03 ` [patch 52/60] kasan: add and integrate kasan boot parameters Andrew Morton
2020-12-22 20:03 ` [patch 53/60] kasan, mm: check kasan_enabled in annotations Andrew Morton
2020-12-22 20:03 ` [patch 54/60] kasan, mm: rename kasan_poison_kfree Andrew Morton
2020-12-22 20:03 ` [patch 55/60] kasan: don't round_up too much Andrew Morton
2020-12-22 20:03 ` [patch 56/60] kasan: simplify assign_tag and set_tag calls Andrew Morton
2020-12-22 20:03 ` [patch 57/60] kasan: clarify comment in __kasan_kfree_large Andrew Morton
2020-12-22 20:03 ` [patch 58/60] kasan: sanitize objects when metadata doesn't fit Andrew Morton
2020-12-22 20:03 ` [patch 59/60] kasan, mm: allow cache merging with no metadata Andrew Morton
2020-12-22 20:03 ` [patch 60/60] kasan: update documentation Andrew Morton
2020-12-22 21:43 ` incoming Linus Torvalds

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