Slab API: remove useless ctor parameter and reorder parameters
Slab constructors currently have a flags parameter that is never used. And
the order of the arguments is opposite to other slab functions. The object
pointer is placed before the kmem_cache pointer.
Convert
ctor(void *object, struct kmem_cache *s, unsigned long flags)
to
ctor(struct kmem_cache *s, void *object)
throughout the kernel
[akpm@linux-foundation.org: coupla fixes]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/rmap.c b/mm/rmap.c
index 2b9f413..f6e85d7 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -137,8 +137,7 @@
anon_vma_free(anon_vma);
}
-static void anon_vma_ctor(void *data, struct kmem_cache *cachep,
- unsigned long flags)
+static void anon_vma_ctor(struct kmem_cache *cachep, void *data)
{
struct anon_vma *anon_vma = data;
diff --git a/mm/shmem.c b/mm/shmem.c
index 2f039f3..2048657 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2328,8 +2328,7 @@
kmem_cache_free(shmem_inode_cachep, SHMEM_I(inode));
}
-static void init_once(void *foo, struct kmem_cache *cachep,
- unsigned long flags)
+static void init_once(struct kmem_cache *cachep, void *foo)
{
struct shmem_inode_info *p = (struct shmem_inode_info *) foo;
diff --git a/mm/slab.c b/mm/slab.c
index e34bcb8..18fa1a6 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -408,7 +408,7 @@
unsigned int dflags; /* dynamic flags */
/* constructor func */
- void (*ctor) (void *, struct kmem_cache *, unsigned long);
+ void (*ctor)(struct kmem_cache *, void *);
/* 5) cache creation/removal */
const char *name;
@@ -2129,7 +2129,7 @@
struct kmem_cache *
kmem_cache_create (const char *name, size_t size, size_t align,
unsigned long flags,
- void (*ctor)(void*, struct kmem_cache *, unsigned long))
+ void (*ctor)(struct kmem_cache *, void *))
{
size_t left_over, slab_size, ralign;
struct kmem_cache *cachep = NULL, *pc;
@@ -2636,8 +2636,7 @@
* They must also be threaded.
*/
if (cachep->ctor && !(cachep->flags & SLAB_POISON))
- cachep->ctor(objp + obj_offset(cachep), cachep,
- 0);
+ cachep->ctor(cachep, objp + obj_offset(cachep));
if (cachep->flags & SLAB_RED_ZONE) {
if (*dbg_redzone2(cachep, objp) != RED_INACTIVE)
@@ -2653,7 +2652,7 @@
cachep->buffer_size / PAGE_SIZE, 0);
#else
if (cachep->ctor)
- cachep->ctor(objp, cachep, 0);
+ cachep->ctor(cachep, objp);
#endif
slab_bufctl(slabp)[i] = i + 1;
}
@@ -3078,7 +3077,7 @@
#endif
objp += obj_offset(cachep);
if (cachep->ctor && cachep->flags & SLAB_POISON)
- cachep->ctor(objp, cachep, 0);
+ cachep->ctor(cachep, objp);
#if ARCH_SLAB_MINALIGN
if ((u32)objp & (ARCH_SLAB_MINALIGN-1)) {
printk(KERN_ERR "0x%p: not aligned to ARCH_SLAB_MINALIGN=%d\n",
diff --git a/mm/slob.c b/mm/slob.c
index de5d556..5bc2ceb 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -499,12 +499,12 @@
unsigned int size, align;
unsigned long flags;
const char *name;
- void (*ctor)(void *, struct kmem_cache *, unsigned long);
+ void (*ctor)(struct kmem_cache *, void *);
};
struct kmem_cache *kmem_cache_create(const char *name, size_t size,
size_t align, unsigned long flags,
- void (*ctor)(void*, struct kmem_cache *, unsigned long))
+ void (*ctor)(struct kmem_cache *, void *))
{
struct kmem_cache *c;
@@ -548,7 +548,7 @@
b = slob_new_page(flags, get_order(c->size), node);
if (c->ctor)
- c->ctor(b, c, 0);
+ c->ctor(c, b);
return b;
}
diff --git a/mm/slub.c b/mm/slub.c
index 0f862fb..e29a429 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -980,7 +980,7 @@
static unsigned long kmem_cache_flags(unsigned long objsize,
unsigned long flags, const char *name,
- void (*ctor)(void *, struct kmem_cache *, unsigned long))
+ void (*ctor)(struct kmem_cache *, void *))
{
/*
* The page->offset field is only 16 bit wide. This is an offset
@@ -1027,7 +1027,7 @@
static inline void add_full(struct kmem_cache_node *n, struct page *page) {}
static inline unsigned long kmem_cache_flags(unsigned long objsize,
unsigned long flags, const char *name,
- void (*ctor)(void *, struct kmem_cache *, unsigned long))
+ void (*ctor)(struct kmem_cache *, void *))
{
return flags;
}
@@ -1071,7 +1071,7 @@
{
setup_object_debug(s, page, object);
if (unlikely(s->ctor))
- s->ctor(object, s, 0);
+ s->ctor(s, object);
}
static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node)
@@ -2211,7 +2211,7 @@
static int kmem_cache_open(struct kmem_cache *s, gfp_t gfpflags,
const char *name, size_t size,
size_t align, unsigned long flags,
- void (*ctor)(void *, struct kmem_cache *, unsigned long))
+ void (*ctor)(struct kmem_cache *, void *))
{
memset(s, 0, kmem_size);
s->name = name;
@@ -2801,7 +2801,7 @@
static struct kmem_cache *find_mergeable(size_t size,
size_t align, unsigned long flags, const char *name,
- void (*ctor)(void *, struct kmem_cache *, unsigned long))
+ void (*ctor)(struct kmem_cache *, void *))
{
struct kmem_cache *s;
@@ -2842,7 +2842,7 @@
struct kmem_cache *kmem_cache_create(const char *name, size_t size,
size_t align, unsigned long flags,
- void (*ctor)(void *, struct kmem_cache *, unsigned long))
+ void (*ctor)(struct kmem_cache *, void *))
{
struct kmem_cache *s;