mm: vmalloc: Enable memory allocation profiling

This wrapps all external vmalloc allocation functions with the
alloc_hooks() wrapper, and switches internal allocations to _noprof
variants where appropriate, for the new memory allocation profiling
feature.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

3 files changed, 101 insertions, 71 deletions

diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index c720be70c8dd..106d78e75606 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -2,6 +2,8 @@
 #ifndef _LINUX_VMALLOC_H
 #define _LINUX_VMALLOC_H
 
+#include <linux/alloc_tag.h>
+#include <linux/sched.h>
 #include <linux/spinlock.h>
 #include <linux/init.h>
 #include <linux/list.h>
@@ -137,26 +139,54 @@ extern unsigned long vmalloc_nr_pages(void);
 static inline unsigned long vmalloc_nr_pages(void) { return 0; }
 #endif
 
-extern void *vmalloc(unsigned long size) __alloc_size(1);
-extern void *vzalloc(unsigned long size) __alloc_size(1);
-extern void *vmalloc_user(unsigned long size) __alloc_size(1);
-extern void *vmalloc_node(unsigned long size, int node) __alloc_size(1);
-extern void *vzalloc_node(unsigned long size, int node) __alloc_size(1);
-extern void *vmalloc_32(unsigned long size) __alloc_size(1);
-extern void *vmalloc_32_user(unsigned long size) __alloc_size(1);
-extern void *__vmalloc(unsigned long size, gfp_t gfp_mask) __alloc_size(1);
-extern void *__vmalloc_node_range(unsigned long size, unsigned long align,
+extern void *vmalloc_noprof(unsigned long size) __alloc_size(1);
+#define vmalloc(...)		alloc_hooks(vmalloc_noprof(__VA_ARGS__))
+
+extern void *vzalloc_noprof(unsigned long size) __alloc_size(1);
+#define vzalloc(...)		alloc_hooks(vzalloc_noprof(__VA_ARGS__))
+
+extern void *vmalloc_user_noprof(unsigned long size) __alloc_size(1);
+#define vmalloc_user(...)	alloc_hooks(vmalloc_user_noprof(__VA_ARGS__))
+
+extern void *vmalloc_node_noprof(unsigned long size, int node) __alloc_size(1);
+#define vmalloc_node(...)	alloc_hooks(vmalloc_node_noprof(__VA_ARGS__))
+
+extern void *vzalloc_node_noprof(unsigned long size, int node) __alloc_size(1);
+#define vzalloc_node(...)	alloc_hooks(vzalloc_node_noprof(__VA_ARGS__))
+
+extern void *vmalloc_32_noprof(unsigned long size) __alloc_size(1);
+#define vmalloc_32(...)		alloc_hooks(vmalloc_32_noprof(__VA_ARGS__))
+
+extern void *vmalloc_32_user_noprof(unsigned long size) __alloc_size(1);
+#define vmalloc_32_user(...)	alloc_hooks(vmalloc_32_user_noprof(__VA_ARGS__))
+
+extern void *__vmalloc_noprof(unsigned long size, gfp_t gfp_mask) __alloc_size(1);
+#define __vmalloc(...)		alloc_hooks(__vmalloc_noprof(__VA_ARGS__))
+
+extern void *__vmalloc_node_range_noprof(unsigned long size, unsigned long align,
 			unsigned long start, unsigned long end, gfp_t gfp_mask,
 			pgprot_t prot, unsigned long vm_flags, int node,
 			const void *caller) __alloc_size(1);
-void *__vmalloc_node(unsigned long size, unsigned long align, gfp_t gfp_mask,
+#define __vmalloc_node_range(...)	alloc_hooks(__vmalloc_node_range_noprof(__VA_ARGS__))
+
+void *__vmalloc_node_noprof(unsigned long size, unsigned long align, gfp_t gfp_mask,
 		int node, const void *caller) __alloc_size(1);
-void *vmalloc_huge(unsigned long size, gfp_t gfp_mask) __alloc_size(1);
+#define __vmalloc_node(...)	alloc_hooks(__vmalloc_node_noprof(__VA_ARGS__))
+
+void *vmalloc_huge_noprof(unsigned long size, gfp_t gfp_mask) __alloc_size(1);
+#define vmalloc_huge(...)	alloc_hooks(vmalloc_huge_noprof(__VA_ARGS__))
+
+extern void *__vmalloc_array_noprof(size_t n, size_t size, gfp_t flags) __alloc_size(1, 2);
+#define __vmalloc_array(...)	alloc_hooks(__vmalloc_array_noprof(__VA_ARGS__))
+
+extern void *vmalloc_array_noprof(size_t n, size_t size) __alloc_size(1, 2);
+#define vmalloc_array(...)	alloc_hooks(vmalloc_array_noprof(__VA_ARGS__))
+
+extern void *__vcalloc_noprof(size_t n, size_t size, gfp_t flags) __alloc_size(1, 2);
+#define __vcalloc(...)		alloc_hooks(__vcalloc_noprof(__VA_ARGS__))
 
-extern void *__vmalloc_array(size_t n, size_t size, gfp_t flags) __alloc_size(1, 2);
-extern void *vmalloc_array(size_t n, size_t size) __alloc_size(1, 2);
-extern void *__vcalloc(size_t n, size_t size, gfp_t flags) __alloc_size(1, 2);
-extern void *vcalloc(size_t n, size_t size) __alloc_size(1, 2);
+extern void *vcalloc_noprof(size_t n, size_t size) __alloc_size(1, 2);
+#define vcalloc(...)		alloc_hooks(vcalloc_noprof(__VA_ARGS__))
 
 extern void vfree(const void *addr);
 extern void vfree_atomic(const void *addr);
diff --git a/mm/util.c b/mm/util.c
index 9b10e2350689..1c763a373500 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -626,7 +626,7 @@ void *kvmalloc_node_noprof(size_t size, gfp_t flags, int node)
 	 * about the resulting pointer, and cannot play
 	 * protection games.
 	 */
-	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
+	return __vmalloc_node_range_noprof(size, 1, VMALLOC_START, VMALLOC_END,
 			flags, PAGE_KERNEL, VM_ALLOW_HUGE_VMAP,
 			node, __builtin_return_address(0));
 }
@@ -685,12 +685,12 @@ void *kvrealloc_noprof(const void *p, size_t oldsize, size_t newsize, gfp_t flag
 EXPORT_SYMBOL(kvrealloc_noprof);
 
 /**
- * __vmalloc_array - allocate memory for a virtually contiguous array.
+ * __vmalloc_array_noprof - allocate memory for a virtually contiguous array.
  * @n: number of elements.
  * @size: element size.
  * @flags: the type of memory to allocate (see kmalloc).
  */
-void *__vmalloc_array(size_t n, size_t size, gfp_t flags)
+void *__vmalloc_array_noprof(size_t n, size_t size, gfp_t flags)
 {
 	size_t bytes;
 
@@ -698,18 +698,18 @@ void *__vmalloc_array(size_t n, size_t size, gfp_t flags)
 		return NULL;
 	return __vmalloc(bytes, flags);
 }
-EXPORT_SYMBOL(__vmalloc_array);
+EXPORT_SYMBOL(__vmalloc_array_noprof);
 
 /**
- * vmalloc_array - allocate memory for a virtually contiguous array.
+ * vmalloc_array_noprof - allocate memory for a virtually contiguous array.
  * @n: number of elements.
  * @size: element size.
  */
-void *vmalloc_array(size_t n, size_t size)
+void *vmalloc_array_noprof(size_t n, size_t size)
 {
 	return __vmalloc_array(n, size, GFP_KERNEL);
 }
-EXPORT_SYMBOL(vmalloc_array);
+EXPORT_SYMBOL(vmalloc_array_noprof);
 
 /**
  * __vcalloc - allocate and zero memory for a virtually contiguous array.
@@ -717,22 +717,22 @@ EXPORT_SYMBOL(vmalloc_array);
  * @size: element size.
  * @flags: the type of memory to allocate (see kmalloc).
  */
-void *__vcalloc(size_t n, size_t size, gfp_t flags)
+void *__vcalloc_noprof(size_t n, size_t size, gfp_t flags)
 {
 	return __vmalloc_array(n, size, flags | __GFP_ZERO);
 }
-EXPORT_SYMBOL(__vcalloc);
+EXPORT_SYMBOL(__vcalloc_noprof);
 
 /**
- * vcalloc - allocate and zero memory for a virtually contiguous array.
+ * vcalloc_noprof - allocate and zero memory for a virtually contiguous array.
  * @n: number of elements.
  * @size: element size.
  */
-void *vcalloc(size_t n, size_t size)
+void *vcalloc_noprof(size_t n, size_t size)
 {
 	return __vmalloc_array(n, size, GFP_KERNEL | __GFP_ZERO);
 }
-EXPORT_SYMBOL(vcalloc);
+EXPORT_SYMBOL(vcalloc_noprof);
 
 /* Neutral page->mapping pointer to address_space or anon_vma or other */
 void *page_rmapping(struct page *page)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 1d13d71687d7..4c199cf9b71d 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2971,12 +2971,12 @@ vm_area_alloc_pages(gfp_t gfp, int nid,
 			 * but mempolicy wants to alloc memory by interleaving.
 			 */
 			if (IS_ENABLED(CONFIG_NUMA) && nid == NUMA_NO_NODE)
-				nr = alloc_pages_bulk_array_mempolicy(bulk_gfp,
+				nr = alloc_pages_bulk_array_mempolicy_noprof(bulk_gfp,
 							nr_pages_request,
 							pages + nr_allocated);
 
 			else
-				nr = alloc_pages_bulk_array_node(bulk_gfp, nid,
+				nr = alloc_pages_bulk_array_node_noprof(bulk_gfp, nid,
 							nr_pages_request,
 							pages + nr_allocated);
 
@@ -3006,9 +3006,9 @@ vm_area_alloc_pages(gfp_t gfp, int nid,
 			break;
 
 		if (nid == NUMA_NO_NODE)
-			page = alloc_pages(alloc_gfp, order);
+			page = alloc_pages_noprof(alloc_gfp, order);
 		else
-			page = alloc_pages_node(nid, alloc_gfp, order);
+			page = alloc_pages_node_noprof(nid, alloc_gfp, order);
 		if (unlikely(!page)) {
 			if (!nofail)
 				break;
@@ -3065,10 +3065,10 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
 
 	/* Please note that the recursion is strictly bounded. */
 	if (array_size > PAGE_SIZE) {
-		area->pages = __vmalloc_node(array_size, 1, nested_gfp, node,
+		area->pages = __vmalloc_node_noprof(array_size, 1, nested_gfp, node,
 					area->caller);
 	} else {
-		area->pages = kmalloc_node(array_size, nested_gfp, node);
+		area->pages = kmalloc_node_noprof(array_size, nested_gfp, node);
 	}
 
 	if (!area->pages) {
@@ -3151,7 +3151,7 @@ fail:
 }
 
 /**
- * __vmalloc_node_range - allocate virtually contiguous memory
+ * __vmalloc_node_range_noprof - allocate virtually contiguous memory
  * @size:		  allocation size
  * @align:		  desired alignment
  * @start:		  vm area range start
@@ -3178,7 +3178,7 @@ fail:
  *
  * Return: the address of the area or %NULL on failure
  */
-void *__vmalloc_node_range(unsigned long size, unsigned long align,
+void *__vmalloc_node_range_noprof(unsigned long size, unsigned long align,
 			unsigned long start, unsigned long end, gfp_t gfp_mask,
 			pgprot_t prot, unsigned long vm_flags, int node,
 			const void *caller)
@@ -3307,7 +3307,7 @@ fail:
 }
 
 /**
- * __vmalloc_node - allocate virtually contiguous memory
+ * __vmalloc_node_noprof - allocate virtually contiguous memory
  * @size:	    allocation size
  * @align:	    desired alignment
  * @gfp_mask:	    flags for the page level allocator
@@ -3325,10 +3325,10 @@ fail:
  *
  * Return: pointer to the allocated memory or %NULL on error
  */
-void *__vmalloc_node(unsigned long size, unsigned long align,
+void *__vmalloc_node_noprof(unsigned long size, unsigned long align,
 			    gfp_t gfp_mask, int node, const void *caller)
 {
-	return __vmalloc_node_range(size, align, VMALLOC_START, VMALLOC_END,
+	return __vmalloc_node_range_noprof(size, align, VMALLOC_START, VMALLOC_END,
 				gfp_mask, PAGE_KERNEL, 0, node, caller);
 }
 /*
@@ -3337,15 +3337,15 @@ void *__vmalloc_node(unsigned long size, unsigned long align,
  * than that.
  */
 #ifdef CONFIG_TEST_VMALLOC_MODULE
-EXPORT_SYMBOL_GPL(__vmalloc_node);
+EXPORT_SYMBOL_GPL(__vmalloc_node_noprof);
 #endif
 
-void *__vmalloc(unsigned long size, gfp_t gfp_mask)
+void *__vmalloc_noprof(unsigned long size, gfp_t gfp_mask)
 {
-	return __vmalloc_node(size, 1, gfp_mask, NUMA_NO_NODE,
+	return __vmalloc_node_noprof(size, 1, gfp_mask, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
-EXPORT_SYMBOL(__vmalloc);
+EXPORT_SYMBOL(__vmalloc_noprof);
 
 /**
  * vmalloc - allocate virtually contiguous memory
@@ -3359,12 +3359,12 @@ EXPORT_SYMBOL(__vmalloc);
  *
  * Return: pointer to the allocated memory or %NULL on error
  */
-void *vmalloc(unsigned long size)
+void *vmalloc_noprof(unsigned long size)
 {
-	return __vmalloc_node(size, 1, GFP_KERNEL, NUMA_NO_NODE,
+	return __vmalloc_node_noprof(size, 1, GFP_KERNEL, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
-EXPORT_SYMBOL(vmalloc);
+EXPORT_SYMBOL(vmalloc_noprof);
 
 /**
  * vmalloc_huge - allocate virtually contiguous memory, allow huge pages
@@ -3378,16 +3378,16 @@ EXPORT_SYMBOL(vmalloc);
  *
  * Return: pointer to the allocated memory or %NULL on error
  */
-void *vmalloc_huge(unsigned long size, gfp_t gfp_mask)
+void *vmalloc_huge_noprof(unsigned long size, gfp_t gfp_mask)
 {
-	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
+	return __vmalloc_node_range_noprof(size, 1, VMALLOC_START, VMALLOC_END,
 				    gfp_mask, PAGE_KERNEL, VM_ALLOW_HUGE_VMAP,
 				    NUMA_NO_NODE, __builtin_return_address(0));
 }
-EXPORT_SYMBOL_GPL(vmalloc_huge);
+EXPORT_SYMBOL_GPL(vmalloc_huge_noprof);
 
 /**
- * vzalloc - allocate virtually contiguous memory with zero fill
+ * vzalloc_noprof - allocate virtually contiguous memory with zero fill
  * @size:    allocation size
  *
  * Allocate enough pages to cover @size from the page level
@@ -3399,12 +3399,12 @@ EXPORT_SYMBOL_GPL(vmalloc_huge);
  *
  * Return: pointer to the allocated memory or %NULL on error
  */
-void *vzalloc(unsigned long size)
+void *vzalloc_noprof(unsigned long size)
 {
-	return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_ZERO, NUMA_NO_NODE,
+	return __vmalloc_node_noprof(size, 1, GFP_KERNEL | __GFP_ZERO, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
-EXPORT_SYMBOL(vzalloc);
+EXPORT_SYMBOL(vzalloc_noprof);
 
 /**
  * vmalloc_user - allocate zeroed virtually contiguous memory for userspace
@@ -3415,17 +3415,17 @@ EXPORT_SYMBOL(vzalloc);
  *
  * Return: pointer to the allocated memory or %NULL on error
  */
-void *vmalloc_user(unsigned long size)
+void *vmalloc_user_noprof(unsigned long size)
 {
-	return __vmalloc_node_range(size, SHMLBA,  VMALLOC_START, VMALLOC_END,
+	return __vmalloc_node_range_noprof(size, SHMLBA,  VMALLOC_START, VMALLOC_END,
 				    GFP_KERNEL | __GFP_ZERO, PAGE_KERNEL,
 				    VM_USERMAP, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
-EXPORT_SYMBOL(vmalloc_user);
+EXPORT_SYMBOL(vmalloc_user_noprof);
 
 /**
- * vmalloc_node - allocate memory on a specific node
+ * vmalloc_node_noprof - allocate memory on a specific node
  * @size:	  allocation size
  * @node:	  numa node
  *
@@ -3437,15 +3437,15 @@ EXPORT_SYMBOL(vmalloc_user);
  *
  * Return: pointer to the allocated memory or %NULL on error
  */
-void *vmalloc_node(unsigned long size, int node)
+void *vmalloc_node_noprof(unsigned long size, int node)
 {
-	return __vmalloc_node(size, 1, GFP_KERNEL, node,
+	return __vmalloc_node_noprof(size, 1, GFP_KERNEL, node,
 			__builtin_return_address(0));
 }
-EXPORT_SYMBOL(vmalloc_node);
+EXPORT_SYMBOL(vmalloc_node_noprof);
 
 /**
- * vzalloc_node - allocate memory on a specific node with zero fill
+ * vzalloc_node_noprof - allocate memory on a specific node with zero fill
  * @size:	allocation size
  * @node:	numa node
  *
@@ -3455,12 +3455,12 @@ EXPORT_SYMBOL(vmalloc_node);
  *
  * Return: pointer to the allocated memory or %NULL on error
  */
-void *vzalloc_node(unsigned long size, int node)
+void *vzalloc_node_noprof(unsigned long size, int node)
 {
-	return __vmalloc_node(size, 1, GFP_KERNEL | __GFP_ZERO, node,
+	return __vmalloc_node_noprof(size, 1, GFP_KERNEL | __GFP_ZERO, node,
 				__builtin_return_address(0));
 }
-EXPORT_SYMBOL(vzalloc_node);
+EXPORT_SYMBOL(vzalloc_node_noprof);
 
 #if defined(CONFIG_64BIT) && defined(CONFIG_ZONE_DMA32)
 #define GFP_VMALLOC32 (GFP_DMA32 | GFP_KERNEL)
@@ -3475,7 +3475,7 @@ EXPORT_SYMBOL(vzalloc_node);
 #endif
 
 /**
- * vmalloc_32 - allocate virtually contiguous memory (32bit addressable)
+ * vmalloc_32_noprof - allocate virtually contiguous memory (32bit addressable)
  * @size:	allocation size
  *
  * Allocate enough 32bit PA addressable pages to cover @size from the
@@ -3483,15 +3483,15 @@ EXPORT_SYMBOL(vzalloc_node);
  *
  * Return: pointer to the allocated memory or %NULL on error
  */
-void *vmalloc_32(unsigned long size)
+void *vmalloc_32_noprof(unsigned long size)
 {
-	return __vmalloc_node(size, 1, GFP_VMALLOC32, NUMA_NO_NODE,
+	return __vmalloc_node_noprof(size, 1, GFP_VMALLOC32, NUMA_NO_NODE,
 			__builtin_return_address(0));
 }
-EXPORT_SYMBOL(vmalloc_32);
+EXPORT_SYMBOL(vmalloc_32_noprof);
 
 /**
- * vmalloc_32_user - allocate zeroed virtually contiguous 32bit memory
+ * vmalloc_32_user_noprof - allocate zeroed virtually contiguous 32bit memory
  * @size:	     allocation size
  *
  * The resulting memory area is 32bit addressable and zeroed so it can be
@@ -3499,14 +3499,14 @@ EXPORT_SYMBOL(vmalloc_32);
  *
  * Return: pointer to the allocated memory or %NULL on error
  */
-void *vmalloc_32_user(unsigned long size)
+void *vmalloc_32_user_noprof(unsigned long size)
 {
-	return __vmalloc_node_range(size, SHMLBA,  VMALLOC_START, VMALLOC_END,
+	return __vmalloc_node_range_noprof(size, SHMLBA,  VMALLOC_START, VMALLOC_END,
 				    GFP_VMALLOC32 | __GFP_ZERO, PAGE_KERNEL,
 				    VM_USERMAP, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
-EXPORT_SYMBOL(vmalloc_32_user);
+EXPORT_SYMBOL(vmalloc_32_user_noprof);
 
 /*
  * Atomically zero bytes in the iterator.