The patch titled
Subject: mm: move kvmalloc-related functions to slab.h
has been added to the -mm tree. Its filename is
mm-move-kvmalloc-related-functions-to-slabh.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-move-kvmalloc-related-functions-to-slabh.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-move-kvmalloc-related-functions-to-slabh.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
Subject: mm: move kvmalloc-related functions to slab.h
Not all files in the kernel should include mm.h. Migrating callers from
kmalloc to kvmalloc is easier if the kvmalloc functions are in slab.h.
Link: https://lkml.kernel.org/r/20210622215757.3525604-1-willy@xxxxxxxxxxxxx
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Acked-by: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/of/kexec.c | 1 +
include/linux/mm.h | 32 --------------------------------
include/linux/slab.h | 32 ++++++++++++++++++++++++++++++++
3 files changed, 33 insertions(+), 32 deletions(-)
--- a/drivers/of/kexec.c~mm-move-kvmalloc-related-functions-to-slabh
+++ a/drivers/of/kexec.c
@@ -16,6 +16,7 @@
#include <linux/of.h>
#include <linux/of_fdt.h>
#include <linux/random.h>
+#include <linux/slab.h>
#include <linux/types.h>
/* relevant device tree properties */
--- a/include/linux/mm.h~mm-move-kvmalloc-related-functions-to-slabh
+++ a/include/linux/mm.h
@@ -800,38 +800,6 @@ static inline int is_vmalloc_or_module_a
}
#endif
-extern void *kvmalloc_node(size_t size, gfp_t flags, int node);
-static inline void *kvmalloc(size_t size, gfp_t flags)
-{
- return kvmalloc_node(size, flags, NUMA_NO_NODE);
-}
-static inline void *kvzalloc_node(size_t size, gfp_t flags, int node)
-{
- return kvmalloc_node(size, flags | __GFP_ZERO, node);
-}
-static inline void *kvzalloc(size_t size, gfp_t flags)
-{
- return kvmalloc(size, flags | __GFP_ZERO);
-}
-
-static inline void *kvmalloc_array(size_t n, size_t size, gfp_t flags)
-{
- size_t bytes;
-
- if (unlikely(check_mul_overflow(n, size, &bytes)))
- return NULL;
-
- return kvmalloc(bytes, flags);
-}
-
-static inline void *kvcalloc(size_t n, size_t size, gfp_t flags)
-{
- return kvmalloc_array(n, size, flags | __GFP_ZERO);
-}
-
-extern void kvfree(const void *addr);
-extern void kvfree_sensitive(const void *addr, size_t len);
-
static inline int head_compound_mapcount(struct page *head)
{
return atomic_read(compound_mapcount_ptr(head)) + 1;
--- a/include/linux/slab.h~mm-move-kvmalloc-related-functions-to-slabh
+++ a/include/linux/slab.h
@@ -732,6 +732,38 @@ static inline void *kzalloc_node(size_t
return kmalloc_node(size, flags | __GFP_ZERO, node);
}
+void *kvmalloc_node(size_t size, gfp_t flags, int node);
+static inline void *kvmalloc(size_t size, gfp_t flags)
+{
+ return kvmalloc_node(size, flags, NUMA_NO_NODE);
+}
+static inline void *kvzalloc_node(size_t size, gfp_t flags, int node)
+{
+ return kvmalloc_node(size, flags | __GFP_ZERO, node);
+}
+static inline void *kvzalloc(size_t size, gfp_t flags)
+{
+ return kvmalloc(size, flags | __GFP_ZERO);
+}
+
+static inline void *kvmalloc_array(size_t n, size_t size, gfp_t flags)
+{
+ size_t bytes;
+
+ if (unlikely(check_mul_overflow(n, size, &bytes)))
+ return NULL;
+
+ return kvmalloc(bytes, flags);
+}
+
+static inline void *kvcalloc(size_t n, size_t size, gfp_t flags)
+{
+ return kvmalloc_array(n, size, flags | __GFP_ZERO);
+}
+
+void kvfree(const void *addr);
+void kvfree_sensitive(const void *addr, size_t len);
+
unsigned int kmem_cache_size(struct kmem_cache *s);
void __init kmem_cache_init_late(void);
_
Patches currently in -mm which might be from willy@xxxxxxxxxxxxx are
mm-move-kvmalloc-related-functions-to-slabh.patch
mm-mark-idle-page-tracking-as-broken.patch
avoid-a-warning-in-sparse-memory-support.patch
