The patch titled
Subject: slab: make create_kmalloc_cache() work with 32-bit sizes
has been removed from the -mm tree. Its filename was
slab-make-create_kmalloc_cache-work-with-32-bit-sizes.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Subject: slab: make create_kmalloc_cache() work with 32-bit sizes
KMALLOC_MAX_CACHE_SIZE is 32-bit so is the largest kmalloc cache size.
Christoph said:
: Ok SLABs maximum allocation size is limited to 32M (see
: include/linux/slab.h:
:
: #define KMALLOC_SHIFT_HIGH ((MAX_ORDER + PAGE_SHIFT - 1) <= 25 ? \
: (MAX_ORDER + PAGE_SHIFT - 1) : 25)
:
: And SLUB/SLOB pass all larger requests to the page allocator anyways.
Link: http://lkml.kernel.org/r/20180305200730.15812-4-adobriyan@xxxxxxxxx
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Acked-by: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slab.h | 8 ++++----
mm/slab_common.c | 6 +++---
2 files changed, 7 insertions(+), 7 deletions(-)
diff -puN mm/slab_common.c~slab-make-create_kmalloc_cache-work-with-32-bit-sizes mm/slab_common.c
--- a/mm/slab_common.c~slab-make-create_kmalloc_cache-work-with-32-bit-sizes
+++ a/mm/slab_common.c
@@ -939,9 +939,9 @@ void __init create_boot_cache(struct kme
s->refcount = -1; /* Exempt from merging for now */
}
-struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
- slab_flags_t flags, size_t useroffset,
- size_t usersize)
+struct kmem_cache *__init create_kmalloc_cache(const char *name,
+ unsigned int size, slab_flags_t flags,
+ unsigned int useroffset, unsigned int usersize)
{
struct kmem_cache *s = kmem_cache_zalloc(kmem_cache, GFP_NOWAIT);
diff -puN mm/slab.h~slab-make-create_kmalloc_cache-work-with-32-bit-sizes mm/slab.h
--- a/mm/slab.h~slab-make-create_kmalloc_cache-work-with-32-bit-sizes
+++ a/mm/slab.h
@@ -77,7 +77,7 @@ extern struct kmem_cache *kmem_cache;
/* A table of kmalloc cache names and sizes */
extern const struct kmalloc_info_struct {
const char *name;
- unsigned long size;
+ unsigned int size;
} kmalloc_info[];
#ifndef CONFIG_SLOB
@@ -93,9 +93,9 @@ struct kmem_cache *kmalloc_slab(size_t,
/* Functions provided by the slab allocators */
int __kmem_cache_create(struct kmem_cache *, slab_flags_t flags);
-extern struct kmem_cache *create_kmalloc_cache(const char *name, size_t size,
- slab_flags_t flags, size_t useroffset,
- size_t usersize);
+struct kmem_cache *create_kmalloc_cache(const char *name, unsigned int size,
+ slab_flags_t flags, unsigned int useroffset,
+ unsigned int usersize);
extern void create_boot_cache(struct kmem_cache *, const char *name,
size_t size, slab_flags_t flags, size_t useroffset,
size_t usersize);
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
proc-do-less-stuff-under-pde_unload_lock.patch
proc-move-proc-sysvipc-creation-to-where-it-belongs.patch
proc-faster-open-close-of-files-without-release-hook.patch
proc-randomize-struct-pde_opener.patch
proc-move-struct-pde_opener-to-kmem-cache.patch
proc-account-struct-pde_opener.patch
proc-check-permissions-earlier-for-proc-wchan.patch
proc-use-set_puts-at-proc-wchan.patch
proc-test-proc-self-wchan.patch
proc-test-proc-self-syscall.patch
proc-move-struct-proc_dir_entry-into-kmem-cache.patch
proc-fix-proc-map_files-lookup-some-more.patch
proc-register-filesystem-last.patch
proc-faster-proc-cmdline.patch
proc-do-mmput-asap-for-proc-map_files.patch
proc-revalidate-misc-dentries.patch
proc-test-last-field-of-proc-loadavg.patch
proc-reject-and-as-filenames.patch
proc-switch-struct-proc_dir_entry-count-to-refcount.patch
proc-shotgun-test-read-readdir-readlink-a-little-write.patch
proc-shotgun-test-read-readdir-readlink-a-little-write-fix.patch
proc-shotgun-test-read-readdir-readlink-a-little-write-fix-2.patch
proc-use-slower-rb_first.patch
proc-test-proc-uptime.patch
uts-create-struct-uts_namespace-from-kmem_cache.patch
seq_file-allocate-seq_file-from-kmem_cache.patch
seq_file-account-everything.patch
seq_file-delete-small-value-optimization.patch
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