+ mm-fix-xyz_noprof-functions-calling-profiled-functions.patch added to mm-hotfixes-unstable branch

[Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>]

The patch titled
     Subject: mm: fix xyz_noprof functions calling profiled functions
has been added to the -mm mm-hotfixes-unstable branch.  Its filename is
     mm-fix-xyz_noprof-functions-calling-profiled-functions.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-fix-xyz_noprof-functions-calling-profiled-functions.patch

This patch will later appear in the mm-hotfixes-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Subject: mm: fix xyz_noprof functions calling profiled functions
Date: Fri, 31 May 2024 13:53:50 -0700

Grepping /proc/allocinfo for "noprof" reveals several xyz_noprof
functions, which means internally they are calling profiled functions. 
This should never happen as such calls move allocation charge from a
higher level location where it should be accounted for into these lower
level helpers.  Fix this by replacing profiled function calls with noprof
ones.

Link: https://lkml.kernel.org/r/20240531205350.3973009-1-surenb@xxxxxxxxxx
Fixes: b951aaff5035 ("mm: enable page allocation tagging")
Fixes: e26d8769da6d ("mempool: hook up to memory allocation profiling")
Fixes: 88ae5fb755b0 ("mm: vmalloc: enable memory allocation profiling")
Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Cc: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Reviewed-by: Kees Cook <kees@xxxxxxxxxx>
Cc: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/filemap.c |    2 +-
 mm/mempool.c |    2 +-
 mm/util.c    |   10 +++++-----
 3 files changed, 7 insertions(+), 7 deletions(-)

--- a/mm/filemap.c~mm-fix-xyz_noprof-functions-calling-profiled-functions
+++ a/mm/filemap.c
@@ -1000,7 +1000,7 @@ struct folio *filemap_alloc_folio_noprof
 		do {
 			cpuset_mems_cookie = read_mems_allowed_begin();
 			n = cpuset_mem_spread_node();
-			folio = __folio_alloc_node(gfp, order, n);
+			folio = __folio_alloc_node_noprof(gfp, order, n);
 		} while (!folio && read_mems_allowed_retry(cpuset_mems_cookie));
 
 		return folio;
--- a/mm/mempool.c~mm-fix-xyz_noprof-functions-calling-profiled-functions
+++ a/mm/mempool.c
@@ -273,7 +273,7 @@ mempool_t *mempool_create_node_noprof(in
 {
 	mempool_t *pool;
 
-	pool = kzalloc_node(sizeof(*pool), gfp_mask, node_id);
+	pool = kmalloc_node_noprof(sizeof(*pool), gfp_mask | __GFP_ZERO, node_id);
 	if (!pool)
 		return NULL;
 
--- a/mm/util.c~mm-fix-xyz_noprof-functions-calling-profiled-functions
+++ a/mm/util.c
@@ -705,7 +705,7 @@ void *kvrealloc_noprof(const void *p, si
 
 	if (oldsize >= newsize)
 		return (void *)p;
-	newp = kvmalloc(newsize, flags);
+	newp = kvmalloc_noprof(newsize, flags);
 	if (!newp)
 		return NULL;
 	memcpy(newp, p, oldsize);
@@ -726,7 +726,7 @@ void *__vmalloc_array_noprof(size_t n, s
 
 	if (unlikely(check_mul_overflow(n, size, &bytes)))
 		return NULL;
-	return __vmalloc(bytes, flags);
+	return __vmalloc_noprof(bytes, flags);
 }
 EXPORT_SYMBOL(__vmalloc_array_noprof);
 
@@ -737,7 +737,7 @@ EXPORT_SYMBOL(__vmalloc_array_noprof);
  */
 void *vmalloc_array_noprof(size_t n, size_t size)
 {
-	return __vmalloc_array(n, size, GFP_KERNEL);
+	return __vmalloc_array_noprof(n, size, GFP_KERNEL);
 }
 EXPORT_SYMBOL(vmalloc_array_noprof);
 
@@ -749,7 +749,7 @@ EXPORT_SYMBOL(vmalloc_array_noprof);
  */
 void *__vcalloc_noprof(size_t n, size_t size, gfp_t flags)
 {
-	return __vmalloc_array(n, size, flags | __GFP_ZERO);
+	return __vmalloc_array_noprof(n, size, flags | __GFP_ZERO);
 }
 EXPORT_SYMBOL(__vcalloc_noprof);
 
@@ -760,7 +760,7 @@ EXPORT_SYMBOL(__vcalloc_noprof);
  */
 void *vcalloc_noprof(size_t n, size_t size)
 {
-	return __vmalloc_array(n, size, GFP_KERNEL | __GFP_ZERO);
+	return __vmalloc_array_noprof(n, size, GFP_KERNEL | __GFP_ZERO);
 }
 EXPORT_SYMBOL(vcalloc_noprof);
 
_

Patches currently in -mm which might be from surenb@xxxxxxxxxx are

mm-fix-xyz_noprof-functions-calling-profiled-functions.patch