The patch titled
Subject: mm: enable page allocation tagging
has been added to the -mm mm-unstable branch. Its filename is
mm-enable-page-allocation-tagging.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-enable-page-allocation-tagging.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Subject: mm: enable page allocation tagging
Date: Thu, 21 Mar 2024 09:36:40 -0700
Redefine page allocators to record allocation tags upon their invocation.
Instrument post_alloc_hook and free_pages_prepare to modify current
allocation tag.
Link: https://lkml.kernel.org/r/20240321163705.3067592-19-surenb@xxxxxxxxxx
Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Co-developed-by: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Signed-off-by: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Alex Gaynor <alex.gaynor@xxxxxxxxx>
Cc: Alice Ryhl <aliceryhl@xxxxxxxxxx>
Cc: Andreas Hindborg <a.hindborg@xxxxxxxxxxx>
Cc: Benno Lossin <benno.lossin@xxxxxxxxx>
Cc: "Björn Roy Baron" <bjorn3_gh@xxxxxxxxxxxxxx>
Cc: Boqun Feng <boqun.feng@xxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Dennis Zhou <dennis@xxxxxxxxxx>
Cc: Gary Guo <gary@xxxxxxxxxxx>
Cc: Miguel Ojeda <ojeda@xxxxxxxxxx>
Cc: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: Wedson Almeida Filho <wedsonaf@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/alloc_tag.h | 14 ++++
include/linux/gfp.h | 126 ++++++++++++++++++++++--------------
include/linux/pagemap.h | 9 +-
mm/compaction.c | 7 +-
mm/filemap.c | 6 -
mm/mempolicy.c | 52 +++++++-------
mm/page_alloc.c | 60 ++++++++---------
7 files changed, 164 insertions(+), 110 deletions(-)
--- a/include/linux/alloc_tag.h~mm-enable-page-allocation-tagging
+++ a/include/linux/alloc_tag.h
@@ -142,4 +142,18 @@ static inline void alloc_tag_sub(union c
#endif /* CONFIG_MEM_ALLOC_PROFILING */
+#define alloc_hooks_tag(_tag, _do_alloc) \
+({ \
+ struct alloc_tag * __maybe_unused _old = alloc_tag_save(_tag); \
+ typeof(_do_alloc) _res = _do_alloc; \
+ alloc_tag_restore(_tag, _old); \
+ _res; \
+})
+
+#define alloc_hooks(_do_alloc) \
+({ \
+ DEFINE_ALLOC_TAG(_alloc_tag); \
+ alloc_hooks_tag(&_alloc_tag, _do_alloc); \
+})
+
#endif /* _LINUX_ALLOC_TAG_H */
--- a/include/linux/gfp.h~mm-enable-page-allocation-tagging
+++ a/include/linux/gfp.h
@@ -6,6 +6,8 @@
#include <linux/mmzone.h>
#include <linux/topology.h>
+#include <linux/alloc_tag.h>
+#include <linux/sched.h>
struct vm_area_struct;
struct mempolicy;
@@ -175,42 +177,46 @@ static inline void arch_free_page(struct
static inline void arch_alloc_page(struct page *page, int order) { }
#endif
-struct page *__alloc_pages(gfp_t gfp, unsigned int order, int preferred_nid,
+struct page *__alloc_pages_noprof(gfp_t gfp, unsigned int order, int preferred_nid,
nodemask_t *nodemask);
-struct folio *__folio_alloc(gfp_t gfp, unsigned int order, int preferred_nid,
+#define __alloc_pages(...) alloc_hooks(__alloc_pages_noprof(__VA_ARGS__))
+
+struct folio *__folio_alloc_noprof(gfp_t gfp, unsigned int order, int preferred_nid,
nodemask_t *nodemask);
+#define __folio_alloc(...) alloc_hooks(__folio_alloc_noprof(__VA_ARGS__))
-unsigned long __alloc_pages_bulk(gfp_t gfp, int preferred_nid,
+unsigned long alloc_pages_bulk_noprof(gfp_t gfp, int preferred_nid,
nodemask_t *nodemask, int nr_pages,
struct list_head *page_list,
struct page **page_array);
+#define __alloc_pages_bulk(...) alloc_hooks(alloc_pages_bulk_noprof(__VA_ARGS__))
-unsigned long alloc_pages_bulk_array_mempolicy(gfp_t gfp,
+unsigned long alloc_pages_bulk_array_mempolicy_noprof(gfp_t gfp,
unsigned long nr_pages,
struct page **page_array);
+#define alloc_pages_bulk_array_mempolicy(...) \
+ alloc_hooks(alloc_pages_bulk_array_mempolicy_noprof(__VA_ARGS__))
/* Bulk allocate order-0 pages */
-static inline unsigned long
-alloc_pages_bulk_list(gfp_t gfp, unsigned long nr_pages, struct list_head *list)
-{
- return __alloc_pages_bulk(gfp, numa_mem_id(), NULL, nr_pages, list, NULL);
-}
+#define alloc_pages_bulk_list(_gfp, _nr_pages, _list) \
+ __alloc_pages_bulk(_gfp, numa_mem_id(), NULL, _nr_pages, _list, NULL)
-static inline unsigned long
-alloc_pages_bulk_array(gfp_t gfp, unsigned long nr_pages, struct page **page_array)
-{
- return __alloc_pages_bulk(gfp, numa_mem_id(), NULL, nr_pages, NULL, page_array);
-}
+#define alloc_pages_bulk_array(_gfp, _nr_pages, _page_array) \
+ __alloc_pages_bulk(_gfp, numa_mem_id(), NULL, _nr_pages, NULL, _page_array)
static inline unsigned long
-alloc_pages_bulk_array_node(gfp_t gfp, int nid, unsigned long nr_pages, struct page **page_array)
+alloc_pages_bulk_array_node_noprof(gfp_t gfp, int nid, unsigned long nr_pages,
+ struct page **page_array)
{
if (nid == NUMA_NO_NODE)
nid = numa_mem_id();
- return __alloc_pages_bulk(gfp, nid, NULL, nr_pages, NULL, page_array);
+ return alloc_pages_bulk_noprof(gfp, nid, NULL, nr_pages, NULL, page_array);
}
+#define alloc_pages_bulk_array_node(...) \
+ alloc_hooks(alloc_pages_bulk_array_node_noprof(__VA_ARGS__))
+
static inline void warn_if_node_offline(int this_node, gfp_t gfp_mask)
{
gfp_t warn_gfp = gfp_mask & (__GFP_THISNODE|__GFP_NOWARN);
@@ -230,82 +236,104 @@ static inline void warn_if_node_offline(
* online. For more general interface, see alloc_pages_node().
*/
static inline struct page *
-__alloc_pages_node(int nid, gfp_t gfp_mask, unsigned int order)
+__alloc_pages_node_noprof(int nid, gfp_t gfp_mask, unsigned int order)
{
VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES);
warn_if_node_offline(nid, gfp_mask);
- return __alloc_pages(gfp_mask, order, nid, NULL);
+ return __alloc_pages_noprof(gfp_mask, order, nid, NULL);
}
+#define __alloc_pages_node(...) alloc_hooks(__alloc_pages_node_noprof(__VA_ARGS__))
+
static inline
-struct folio *__folio_alloc_node(gfp_t gfp, unsigned int order, int nid)
+struct folio *__folio_alloc_node_noprof(gfp_t gfp, unsigned int order, int nid)
{
VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES);
warn_if_node_offline(nid, gfp);
- return __folio_alloc(gfp, order, nid, NULL);
+ return __folio_alloc_noprof(gfp, order, nid, NULL);
}
+#define __folio_alloc_node(...) alloc_hooks(__folio_alloc_node_noprof(__VA_ARGS__))
+
/*
* Allocate pages, preferring the node given as nid. When nid == NUMA_NO_NODE,
* prefer the current CPU's closest node. Otherwise node must be valid and
* online.
*/
-static inline struct page *alloc_pages_node(int nid, gfp_t gfp_mask,
- unsigned int order)
+static inline struct page *alloc_pages_node_noprof(int nid, gfp_t gfp_mask,
+ unsigned int order)
{
if (nid == NUMA_NO_NODE)
nid = numa_mem_id();
- return __alloc_pages_node(nid, gfp_mask, order);
+ return __alloc_pages_node_noprof(nid, gfp_mask, order);
}
+#define alloc_pages_node(...) alloc_hooks(alloc_pages_node_noprof(__VA_ARGS__))
+
#ifdef CONFIG_NUMA
-struct page *alloc_pages(gfp_t gfp, unsigned int order);
-struct page *alloc_pages_mpol(gfp_t gfp, unsigned int order,
+struct page *alloc_pages_noprof(gfp_t gfp, unsigned int order);
+struct page *alloc_pages_mpol_noprof(gfp_t gfp, unsigned int order,
struct mempolicy *mpol, pgoff_t ilx, int nid);
-struct folio *folio_alloc(gfp_t gfp, unsigned int order);
-struct folio *vma_alloc_folio(gfp_t gfp, int order, struct vm_area_struct *vma,
+struct folio *folio_alloc_noprof(gfp_t gfp, unsigned int order);
+struct folio *vma_alloc_folio_noprof(gfp_t gfp, int order, struct vm_area_struct *vma,
unsigned long addr, bool hugepage);
#else
-static inline struct page *alloc_pages(gfp_t gfp_mask, unsigned int order)
+static inline struct page *alloc_pages_noprof(gfp_t gfp_mask, unsigned int order)
{
- return alloc_pages_node(numa_node_id(), gfp_mask, order);
+ return alloc_pages_node_noprof(numa_node_id(), gfp_mask, order);
}
-static inline struct page *alloc_pages_mpol(gfp_t gfp, unsigned int order,
+static inline struct page *alloc_pages_mpol_noprof(gfp_t gfp, unsigned int order,
struct mempolicy *mpol, pgoff_t ilx, int nid)
{
- return alloc_pages(gfp, order);
+ return alloc_pages_noprof(gfp, order);
}
-static inline struct folio *folio_alloc(gfp_t gfp, unsigned int order)
+static inline struct folio *folio_alloc_noprof(gfp_t gfp, unsigned int order)
{
return __folio_alloc_node(gfp, order, numa_node_id());
}
-#define vma_alloc_folio(gfp, order, vma, addr, hugepage) \
- folio_alloc(gfp, order)
+#define vma_alloc_folio_noprof(gfp, order, vma, addr, hugepage) \
+ folio_alloc_noprof(gfp, order)
#endif
+
+#define alloc_pages(...) alloc_hooks(alloc_pages_noprof(__VA_ARGS__))
+#define alloc_pages_mpol(...) alloc_hooks(alloc_pages_mpol_noprof(__VA_ARGS__))
+#define folio_alloc(...) alloc_hooks(folio_alloc_noprof(__VA_ARGS__))
+#define vma_alloc_folio(...) alloc_hooks(vma_alloc_folio_noprof(__VA_ARGS__))
+
#define alloc_page(gfp_mask) alloc_pages(gfp_mask, 0)
-static inline struct page *alloc_page_vma(gfp_t gfp,
+
+static inline struct page *alloc_page_vma_noprof(gfp_t gfp,
struct vm_area_struct *vma, unsigned long addr)
{
- struct folio *folio = vma_alloc_folio(gfp, 0, vma, addr, false);
+ struct folio *folio = vma_alloc_folio_noprof(gfp, 0, vma, addr, false);
return &folio->page;
}
+#define alloc_page_vma(...) alloc_hooks(alloc_page_vma_noprof(__VA_ARGS__))
+
+extern unsigned long get_free_pages_noprof(gfp_t gfp_mask, unsigned int order);
+#define __get_free_pages(...) alloc_hooks(get_free_pages_noprof(__VA_ARGS__))
-extern unsigned long __get_free_pages(gfp_t gfp_mask, unsigned int order);
-extern unsigned long get_zeroed_page(gfp_t gfp_mask);
+extern unsigned long get_zeroed_page_noprof(gfp_t gfp_mask);
+#define get_zeroed_page(...) alloc_hooks(get_zeroed_page_noprof(__VA_ARGS__))
+
+void *alloc_pages_exact_noprof(size_t size, gfp_t gfp_mask) __alloc_size(1);
+#define alloc_pages_exact(...) alloc_hooks(alloc_pages_exact_noprof(__VA_ARGS__))
-void *alloc_pages_exact(size_t size, gfp_t gfp_mask) __alloc_size(1);
void free_pages_exact(void *virt, size_t size);
-__meminit void *alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask) __alloc_size(2);
-#define __get_free_page(gfp_mask) \
- __get_free_pages((gfp_mask), 0)
+__meminit void *alloc_pages_exact_nid_noprof(int nid, size_t size, gfp_t gfp_mask) __alloc_size(2);
+#define alloc_pages_exact_nid(...) \
+ alloc_hooks(alloc_pages_exact_nid_noprof(__VA_ARGS__))
+
+#define __get_free_page(gfp_mask) \
+ __get_free_pages((gfp_mask), 0)
-#define __get_dma_pages(gfp_mask, order) \
- __get_free_pages((gfp_mask) | GFP_DMA, (order))
+#define __get_dma_pages(gfp_mask, order) \
+ __get_free_pages((gfp_mask) | GFP_DMA, (order))
extern void __free_pages(struct page *page, unsigned int order);
extern void free_pages(unsigned long addr, unsigned int order);
@@ -374,10 +402,14 @@ extern gfp_t vma_thp_gfp_mask(struct vm_
#ifdef CONFIG_CONTIG_ALLOC
/* The below functions must be run on a range from a single zone. */
-extern int alloc_contig_range(unsigned long start, unsigned long end,
+extern int alloc_contig_range_noprof(unsigned long start, unsigned long end,
unsigned migratetype, gfp_t gfp_mask);
-extern struct page *alloc_contig_pages(unsigned long nr_pages, gfp_t gfp_mask,
- int nid, nodemask_t *nodemask);
+#define alloc_contig_range(...) alloc_hooks(alloc_contig_range_noprof(__VA_ARGS__))
+
+extern struct page *alloc_contig_pages_noprof(unsigned long nr_pages, gfp_t gfp_mask,
+ int nid, nodemask_t *nodemask);
+#define alloc_contig_pages(...) alloc_hooks(alloc_contig_pages_noprof(__VA_ARGS__))
+
#endif
void free_contig_range(unsigned long pfn, unsigned long nr_pages);
--- a/include/linux/pagemap.h~mm-enable-page-allocation-tagging
+++ a/include/linux/pagemap.h
@@ -542,14 +542,17 @@ static inline void *detach_page_private(
#endif
#ifdef CONFIG_NUMA
-struct folio *filemap_alloc_folio(gfp_t gfp, unsigned int order);
+struct folio *filemap_alloc_folio_noprof(gfp_t gfp, unsigned int order);
#else
-static inline struct folio *filemap_alloc_folio(gfp_t gfp, unsigned int order)
+static inline struct folio *filemap_alloc_folio_noprof(gfp_t gfp, unsigned int order)
{
- return folio_alloc(gfp, order);
+ return folio_alloc_noprof(gfp, order);
}
#endif
+#define filemap_alloc_folio(...) \
+ alloc_hooks(filemap_alloc_folio_noprof(__VA_ARGS__))
+
static inline struct page *__page_cache_alloc(gfp_t gfp)
{
return &filemap_alloc_folio(gfp, 0)->page;
--- a/mm/compaction.c~mm-enable-page-allocation-tagging
+++ a/mm/compaction.c
@@ -1851,7 +1851,7 @@ static void isolate_freepages(struct com
* This is a migrate-callback that "allocates" freepages by taking pages
* from the isolated freelists in the block we are migrating to.
*/
-static struct folio *compaction_alloc(struct folio *src, unsigned long data)
+static struct folio *compaction_alloc_noprof(struct folio *src, unsigned long data)
{
struct compact_control *cc = (struct compact_control *)data;
struct folio *dst;
@@ -1898,6 +1898,11 @@ again:
return page_rmappable_folio(&dst->page);
}
+static struct folio *compaction_alloc(struct folio *src, unsigned long data)
+{
+ return alloc_hooks(compaction_alloc_noprof(src, data));
+}
+
/*
* This is a migrate-callback that "frees" freepages back to the isolated
* freelist. All pages on the freelist are from the same zone, so there is no
--- a/mm/filemap.c~mm-enable-page-allocation-tagging
+++ a/mm/filemap.c
@@ -966,7 +966,7 @@ int filemap_add_folio(struct address_spa
EXPORT_SYMBOL_GPL(filemap_add_folio);
#ifdef CONFIG_NUMA
-struct folio *filemap_alloc_folio(gfp_t gfp, unsigned int order)
+struct folio *filemap_alloc_folio_noprof(gfp_t gfp, unsigned int order)
{
int n;
struct folio *folio;
@@ -981,9 +981,9 @@ struct folio *filemap_alloc_folio(gfp_t
return folio;
}
- return folio_alloc(gfp, order);
+ return folio_alloc_noprof(gfp, order);
}
-EXPORT_SYMBOL(filemap_alloc_folio);
+EXPORT_SYMBOL(filemap_alloc_folio_noprof);
#endif
/*
--- a/mm/mempolicy.c~mm-enable-page-allocation-tagging
+++ a/mm/mempolicy.c
@@ -2201,15 +2201,15 @@ static struct page *alloc_pages_preferre
*/
preferred_gfp = gfp | __GFP_NOWARN;
preferred_gfp &= ~(__GFP_DIRECT_RECLAIM | __GFP_NOFAIL);
- page = __alloc_pages(preferred_gfp, order, nid, nodemask);
+ page = __alloc_pages_noprof(preferred_gfp, order, nid, nodemask);
if (!page)
- page = __alloc_pages(gfp, order, nid, NULL);
+ page = __alloc_pages_noprof(gfp, order, nid, NULL);
return page;
}
/**
- * alloc_pages_mpol - Allocate pages according to NUMA mempolicy.
+ * alloc_pages_mpol_noprof - Allocate pages according to NUMA mempolicy.
* @gfp: GFP flags.
* @order: Order of the page allocation.
* @pol: Pointer to the NUMA mempolicy.
@@ -2218,7 +2218,7 @@ static struct page *alloc_pages_preferre
*
* Return: The page on success or NULL if allocation fails.
*/
-struct page *alloc_pages_mpol(gfp_t gfp, unsigned int order,
+struct page *alloc_pages_mpol_noprof(gfp_t gfp, unsigned int order,
struct mempolicy *pol, pgoff_t ilx, int nid)
{
nodemask_t *nodemask;
@@ -2249,7 +2249,7 @@ struct page *alloc_pages_mpol(gfp_t gfp,
* First, try to allocate THP only on local node, but
* don't reclaim unnecessarily, just compact.
*/
- page = __alloc_pages_node(nid,
+ page = __alloc_pages_node_noprof(nid,
gfp | __GFP_THISNODE | __GFP_NORETRY, order);
if (page || !(gfp & __GFP_DIRECT_RECLAIM))
return page;
@@ -2262,7 +2262,7 @@ struct page *alloc_pages_mpol(gfp_t gfp,
}
}
- page = __alloc_pages(gfp, order, nid, nodemask);
+ page = __alloc_pages_noprof(gfp, order, nid, nodemask);
if (unlikely(pol->mode == MPOL_INTERLEAVE) && page) {
/* skip NUMA_INTERLEAVE_HIT update if numa stats is disabled */
@@ -2278,7 +2278,7 @@ struct page *alloc_pages_mpol(gfp_t gfp,
}
/**
- * vma_alloc_folio - Allocate a folio for a VMA.
+ * vma_alloc_folio_noprof - Allocate a folio for a VMA.
* @gfp: GFP flags.
* @order: Order of the folio.
* @vma: Pointer to VMA.
@@ -2293,7 +2293,7 @@ struct page *alloc_pages_mpol(gfp_t gfp,
*
* Return: The folio on success or NULL if allocation fails.
*/
-struct folio *vma_alloc_folio(gfp_t gfp, int order, struct vm_area_struct *vma,
+struct folio *vma_alloc_folio_noprof(gfp_t gfp, int order, struct vm_area_struct *vma,
unsigned long addr, bool hugepage)
{
struct mempolicy *pol;
@@ -2301,15 +2301,15 @@ struct folio *vma_alloc_folio(gfp_t gfp,
struct page *page;
pol = get_vma_policy(vma, addr, order, &ilx);
- page = alloc_pages_mpol(gfp | __GFP_COMP, order,
- pol, ilx, numa_node_id());
+ page = alloc_pages_mpol_noprof(gfp | __GFP_COMP, order,
+ pol, ilx, numa_node_id());
mpol_cond_put(pol);
return page_rmappable_folio(page);
}
-EXPORT_SYMBOL(vma_alloc_folio);
+EXPORT_SYMBOL(vma_alloc_folio_noprof);
/**
- * alloc_pages - Allocate pages.
+ * alloc_pages_noprof - Allocate pages.
* @gfp: GFP flags.
* @order: Power of two of number of pages to allocate.
*
@@ -2322,7 +2322,7 @@ EXPORT_SYMBOL(vma_alloc_folio);
* flags are used.
* Return: The page on success or NULL if allocation fails.
*/
-struct page *alloc_pages(gfp_t gfp, unsigned int order)
+struct page *alloc_pages_noprof(gfp_t gfp, unsigned int order)
{
struct mempolicy *pol = &default_policy;
@@ -2333,16 +2333,16 @@ struct page *alloc_pages(gfp_t gfp, unsi
if (!in_interrupt() && !(gfp & __GFP_THISNODE))
pol = get_task_policy(current);
- return alloc_pages_mpol(gfp, order,
- pol, NO_INTERLEAVE_INDEX, numa_node_id());
+ return alloc_pages_mpol_noprof(gfp, order, pol, NO_INTERLEAVE_INDEX,
+ numa_node_id());
}
-EXPORT_SYMBOL(alloc_pages);
+EXPORT_SYMBOL(alloc_pages_noprof);
-struct folio *folio_alloc(gfp_t gfp, unsigned int order)
+struct folio *folio_alloc_noprof(gfp_t gfp, unsigned int order)
{
- return page_rmappable_folio(alloc_pages(gfp | __GFP_COMP, order));
+ return page_rmappable_folio(alloc_pages_noprof(gfp | __GFP_COMP, order));
}
-EXPORT_SYMBOL(folio_alloc);
+EXPORT_SYMBOL(folio_alloc_noprof);
static unsigned long alloc_pages_bulk_array_interleave(gfp_t gfp,
struct mempolicy *pol, unsigned long nr_pages,
@@ -2361,13 +2361,13 @@ static unsigned long alloc_pages_bulk_ar
for (i = 0; i < nodes; i++) {
if (delta) {
- nr_allocated = __alloc_pages_bulk(gfp,
+ nr_allocated = alloc_pages_bulk_noprof(gfp,
interleave_nodes(pol), NULL,
nr_pages_per_node + 1, NULL,
page_array);
delta--;
} else {
- nr_allocated = __alloc_pages_bulk(gfp,
+ nr_allocated = alloc_pages_bulk_noprof(gfp,
interleave_nodes(pol), NULL,
nr_pages_per_node, NULL, page_array);
}
@@ -2504,11 +2504,11 @@ static unsigned long alloc_pages_bulk_ar
preferred_gfp = gfp | __GFP_NOWARN;
preferred_gfp &= ~(__GFP_DIRECT_RECLAIM | __GFP_NOFAIL);
- nr_allocated = __alloc_pages_bulk(preferred_gfp, nid, &pol->nodes,
+ nr_allocated = alloc_pages_bulk_noprof(preferred_gfp, nid, &pol->nodes,
nr_pages, NULL, page_array);
if (nr_allocated < nr_pages)
- nr_allocated += __alloc_pages_bulk(gfp, numa_node_id(), NULL,
+ nr_allocated += alloc_pages_bulk_noprof(gfp, numa_node_id(), NULL,
nr_pages - nr_allocated, NULL,
page_array + nr_allocated);
return nr_allocated;
@@ -2520,7 +2520,7 @@ static unsigned long alloc_pages_bulk_ar
* It can accelerate memory allocation especially interleaving
* allocate memory.
*/
-unsigned long alloc_pages_bulk_array_mempolicy(gfp_t gfp,
+unsigned long alloc_pages_bulk_array_mempolicy_noprof(gfp_t gfp,
unsigned long nr_pages, struct page **page_array)
{
struct mempolicy *pol = &default_policy;
@@ -2544,8 +2544,8 @@ unsigned long alloc_pages_bulk_array_mem
nid = numa_node_id();
nodemask = policy_nodemask(gfp, pol, NO_INTERLEAVE_INDEX, &nid);
- return __alloc_pages_bulk(gfp, nid, nodemask,
- nr_pages, NULL, page_array);
+ return alloc_pages_bulk_noprof(gfp, nid, nodemask,
+ nr_pages, NULL, page_array);
}
int vma_dup_policy(struct vm_area_struct *src, struct vm_area_struct *dst)
--- a/mm/page_alloc.c~mm-enable-page-allocation-tagging
+++ a/mm/page_alloc.c
@@ -4391,7 +4391,7 @@ static inline bool prepare_alloc_pages(g
*
* Returns the number of pages on the list or array.
*/
-unsigned long __alloc_pages_bulk(gfp_t gfp, int preferred_nid,
+unsigned long alloc_pages_bulk_noprof(gfp_t gfp, int preferred_nid,
nodemask_t *nodemask, int nr_pages,
struct list_head *page_list,
struct page **page_array)
@@ -4527,7 +4527,7 @@ failed_irq:
pcp_trylock_finish(UP_flags);
failed:
- page = __alloc_pages(gfp, 0, preferred_nid, nodemask);
+ page = __alloc_pages_noprof(gfp, 0, preferred_nid, nodemask);
if (page) {
if (page_list)
list_add(&page->lru, page_list);
@@ -4538,13 +4538,13 @@ failed:
goto out;
}
-EXPORT_SYMBOL_GPL(__alloc_pages_bulk);
+EXPORT_SYMBOL_GPL(alloc_pages_bulk_noprof);
/*
* This is the 'heart' of the zoned buddy allocator.
*/
-struct page *__alloc_pages(gfp_t gfp, unsigned int order, int preferred_nid,
- nodemask_t *nodemask)
+struct page *__alloc_pages_noprof(gfp_t gfp, unsigned int order,
+ int preferred_nid, nodemask_t *nodemask)
{
struct page *page;
unsigned int alloc_flags = ALLOC_WMARK_LOW;
@@ -4606,38 +4606,38 @@ out:
return page;
}
-EXPORT_SYMBOL(__alloc_pages);
+EXPORT_SYMBOL(__alloc_pages_noprof);
-struct folio *__folio_alloc(gfp_t gfp, unsigned int order, int preferred_nid,
+struct folio *__folio_alloc_noprof(gfp_t gfp, unsigned int order, int preferred_nid,
nodemask_t *nodemask)
{
- struct page *page = __alloc_pages(gfp | __GFP_COMP, order,
+ struct page *page = __alloc_pages_noprof(gfp | __GFP_COMP, order,
preferred_nid, nodemask);
return page_rmappable_folio(page);
}
-EXPORT_SYMBOL(__folio_alloc);
+EXPORT_SYMBOL(__folio_alloc_noprof);
/*
* Common helper functions. Never use with __GFP_HIGHMEM because the returned
* address cannot represent highmem pages. Use alloc_pages and then kmap if
* you need to access high mem.
*/
-unsigned long __get_free_pages(gfp_t gfp_mask, unsigned int order)
+unsigned long get_free_pages_noprof(gfp_t gfp_mask, unsigned int order)
{
struct page *page;
- page = alloc_pages(gfp_mask & ~__GFP_HIGHMEM, order);
+ page = alloc_pages_noprof(gfp_mask & ~__GFP_HIGHMEM, order);
if (!page)
return 0;
return (unsigned long) page_address(page);
}
-EXPORT_SYMBOL(__get_free_pages);
+EXPORT_SYMBOL(get_free_pages_noprof);
-unsigned long get_zeroed_page(gfp_t gfp_mask)
+unsigned long get_zeroed_page_noprof(gfp_t gfp_mask)
{
- return __get_free_page(gfp_mask | __GFP_ZERO);
+ return get_free_pages_noprof(gfp_mask | __GFP_ZERO, 0);
}
-EXPORT_SYMBOL(get_zeroed_page);
+EXPORT_SYMBOL(get_zeroed_page_noprof);
/**
* __free_pages - Free pages allocated with alloc_pages().
@@ -4839,7 +4839,7 @@ static void *make_alloc_exact(unsigned l
}
/**
- * alloc_pages_exact - allocate an exact number physically-contiguous pages.
+ * alloc_pages_exact_noprof - allocate an exact number physically-contiguous pages.
* @size: the number of bytes to allocate
* @gfp_mask: GFP flags for the allocation, must not contain __GFP_COMP
*
@@ -4853,7 +4853,7 @@ static void *make_alloc_exact(unsigned l
*
* Return: pointer to the allocated area or %NULL in case of error.
*/
-void *alloc_pages_exact(size_t size, gfp_t gfp_mask)
+void *alloc_pages_exact_noprof(size_t size, gfp_t gfp_mask)
{
unsigned int order = get_order(size);
unsigned long addr;
@@ -4861,13 +4861,13 @@ void *alloc_pages_exact(size_t size, gfp
if (WARN_ON_ONCE(gfp_mask & (__GFP_COMP | __GFP_HIGHMEM)))
gfp_mask &= ~(__GFP_COMP | __GFP_HIGHMEM);
- addr = __get_free_pages(gfp_mask, order);
+ addr = get_free_pages_noprof(gfp_mask, order);
return make_alloc_exact(addr, order, size);
}
-EXPORT_SYMBOL(alloc_pages_exact);
+EXPORT_SYMBOL(alloc_pages_exact_noprof);
/**
- * alloc_pages_exact_nid - allocate an exact number of physically-contiguous
+ * alloc_pages_exact_nid_noprof - allocate an exact number of physically-contiguous
* pages on a node.
* @nid: the preferred node ID where memory should be allocated
* @size: the number of bytes to allocate
@@ -4878,7 +4878,7 @@ EXPORT_SYMBOL(alloc_pages_exact);
*
* Return: pointer to the allocated area or %NULL in case of error.
*/
-void * __meminit alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask)
+void * __meminit alloc_pages_exact_nid_noprof(int nid, size_t size, gfp_t gfp_mask)
{
unsigned int order = get_order(size);
struct page *p;
@@ -4886,7 +4886,7 @@ void * __meminit alloc_pages_exact_nid(i
if (WARN_ON_ONCE(gfp_mask & (__GFP_COMP | __GFP_HIGHMEM)))
gfp_mask &= ~(__GFP_COMP | __GFP_HIGHMEM);
- p = alloc_pages_node(nid, gfp_mask, order);
+ p = alloc_pages_node_noprof(nid, gfp_mask, order);
if (!p)
return NULL;
return make_alloc_exact((unsigned long)page_address(p), order, size);
@@ -6323,7 +6323,7 @@ int __alloc_contig_migrate_range(struct
}
/**
- * alloc_contig_range() -- tries to allocate given range of pages
+ * alloc_contig_range_noprof() -- tries to allocate given range of pages
* @start: start PFN to allocate
* @end: one-past-the-last PFN to allocate
* @migratetype: migratetype of the underlying pageblocks (either
@@ -6343,7 +6343,7 @@ int __alloc_contig_migrate_range(struct
* pages which PFN is in [start, end) are allocated for the caller and
* need to be freed with free_contig_range().
*/
-int alloc_contig_range(unsigned long start, unsigned long end,
+int alloc_contig_range_noprof(unsigned long start, unsigned long end,
unsigned migratetype, gfp_t gfp_mask)
{
unsigned long outer_start, outer_end;
@@ -6467,15 +6467,15 @@ done:
undo_isolate_page_range(start, end, migratetype);
return ret;
}
-EXPORT_SYMBOL(alloc_contig_range);
+EXPORT_SYMBOL(alloc_contig_range_noprof);
static int __alloc_contig_pages(unsigned long start_pfn,
unsigned long nr_pages, gfp_t gfp_mask)
{
unsigned long end_pfn = start_pfn + nr_pages;
- return alloc_contig_range(start_pfn, end_pfn, MIGRATE_MOVABLE,
- gfp_mask);
+ return alloc_contig_range_noprof(start_pfn, end_pfn, MIGRATE_MOVABLE,
+ gfp_mask);
}
static bool pfn_range_valid_contig(struct zone *z, unsigned long start_pfn,
@@ -6510,7 +6510,7 @@ static bool zone_spans_last_pfn(const st
}
/**
- * alloc_contig_pages() -- tries to find and allocate contiguous range of pages
+ * alloc_contig_pages_noprof() -- tries to find and allocate contiguous range of pages
* @nr_pages: Number of contiguous pages to allocate
* @gfp_mask: GFP mask to limit search and used during compaction
* @nid: Target node
@@ -6530,8 +6530,8 @@ static bool zone_spans_last_pfn(const st
*
* Return: pointer to contiguous pages on success, or NULL if not successful.
*/
-struct page *alloc_contig_pages(unsigned long nr_pages, gfp_t gfp_mask,
- int nid, nodemask_t *nodemask)
+struct page *alloc_contig_pages_noprof(unsigned long nr_pages, gfp_t gfp_mask,
+ int nid, nodemask_t *nodemask)
{
unsigned long ret, pfn, flags;
struct zonelist *zonelist;
_
Patches currently in -mm which might be from surenb@xxxxxxxxxx are
mm-introduce-slabobj_ext-to-support-slab-object-extensions.patch
mm-introduce-__gfp_no_obj_ext-flag-to-selectively-prevent-slabobj_ext-creation.patch
mm-slab-introduce-slab_no_obj_ext-to-avoid-obj_ext-creation.patch
slab-objext-introduce-objext_flags-as-extension-to-page_memcg_data_flags.patch
lib-code-tagging-framework.patch
lib-code-tagging-module-support.patch
lib-prevent-module-unloading-if-memory-is-not-freed.patch
lib-add-allocation-tagging-support-for-memory-allocation-profiling.patch
lib-introduce-support-for-page-allocation-tagging.patch
lib-introduce-early-boot-parameter-to-avoid-page_ext-memory-overhead.patch
mm-percpu-increase-percpu_module_reserve-to-accommodate-allocation-tags.patch
change-alloc_pages-name-in-dma_map_ops-to-avoid-name-conflicts.patch
mm-enable-page-allocation-tagging.patch
mm-create-new-codetag-references-during-page-splitting.patch
mm-fix-non-compound-multi-order-memory-accounting-in-__free_pages.patch
mm-page_ext-enable-early_page_ext-when-config_mem_alloc_profiling_debug=y.patch
lib-add-codetag-reference-into-slabobj_ext.patch
mm-slab-add-allocation-accounting-into-slab-allocation-and-free-paths.patch
mm-slab-enable-slab-allocation-tagging-for-kmalloc-and-friends.patch
mm-percpu-enable-per-cpu-allocation-tagging.patch
lib-add-memory-allocations-report-in-show_mem.patch
codetag-debug-skip-objext-checking-when-its-for-objext-itself.patch
codetag-debug-mark-codetags-for-reserved-pages-as-empty.patch
codetag-debug-introduce-objexts_alloc_fail-to-mark-failed-slab_ext-allocations.patch
