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

[[e-mail]: coupla fixes]
Signed-off-by: Christoph Lameter <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

arch/arm/plat-s3c24xx/dma.c

···
 
 /* kmem cache implementation */
 
-static void s3c2410_dma_cache_ctor(void *p, struct kmem_cache *c, unsigned long f)
+static void s3c2410_dma_cache_ctor(struct kmem_cache *c, void *p)
 {
 	memset(p, 0, sizeof(struct s3c2410_dma_buf));
 }

arch/powerpc/kernel/rtas_flash.c

···
 }
 
 /* constructor for flash_block_cache */
-void rtas_block_ctor(void *ptr, struct kmem_cache *cache, unsigned long flags)
+void rtas_block_ctor(struct kmem_cache *cache, void *ptr)
 {
 	memset(ptr, 0, RTAS_BLK_SIZE);
 }

arch/powerpc/mm/hugetlbpage.c

···
 	return err;
 }
 
-static void zero_ctor(void *addr, struct kmem_cache *cache, unsigned long flags)
+static void zero_ctor(struct kmem_cache *cache, void *addr)
 {
 	memset(addr, 0, kmem_cache_size(cache));
 }

arch/powerpc/mm/init_64.c

···
 module_init(setup_kcore);
 #endif
 
-static void zero_ctor(void *addr, struct kmem_cache *cache, unsigned long flags)
+static void zero_ctor(struct kmem_cache *cache, void *addr)
 {
 	memset(addr, 0, kmem_cache_size(cache));
 }

arch/powerpc/platforms/cell/spufs/inode.c

···
 }
 
 static void
-spufs_init_once(void *p, struct kmem_cache * cachep, unsigned long flags)
+spufs_init_once(struct kmem_cache *cachep, void *p)
 {
 	struct spufs_inode_info *ei = p;
 

arch/sh/mm/pmb.c

···
 	} while (pmbe);
 }
 
-static void pmb_cache_ctor(void *pmb, struct kmem_cache *cachep,
-			   unsigned long flags)
+static void pmb_cache_ctor(struct kmem_cache *cachep, void *pmb)
 {
 	struct pmb_entry *pmbe = pmb;
 

arch/x86/mm/pgtable_32.c

···
 	return pte;
 }
 
-void pmd_ctor(void *pmd, struct kmem_cache *cache, unsigned long flags)
+void pmd_ctor(struct kmem_cache *cache, void *pmd)
 {
 	memset(pmd, 0, PTRS_PER_PMD*sizeof(pmd_t));
 }

drivers/mtd/ubi/eba.c

···
  * @cache: the lock tree entry slab cache
  * @flags: constructor flags
  */
-static void ltree_entry_ctor(void *obj, struct kmem_cache *cache,
-			     unsigned long flags)
+static void ltree_entry_ctor(struct kmem_cache *cache, void *obj)
 {
 	struct ltree_entry *le = obj;
 

drivers/usb/mon/mon_text.c

···
 
 static struct dentry *mon_dir;		/* Usually /sys/kernel/debug/usbmon */
 
-static void mon_text_ctor(void *, struct kmem_cache *, unsigned long);
+static void mon_text_ctor(struct kmem_cache *, void *);
 
 struct mon_text_ptr {
 	int cnt, limit;
···
 /*
  * Slab interface: constructor.
  */
-static void mon_text_ctor(void *mem, struct kmem_cache *slab, unsigned long sflags)
+static void mon_text_ctor(struct kmem_cache *slab, void *mem)
 {
 	/*
 	 * Nothing to initialize. No, really!

fs/adfs/super.c

···
 	kmem_cache_free(adfs_inode_cachep, ADFS_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 adfs_inode_info *ei = (struct adfs_inode_info *) foo;
 

fs/affs/super.c

···
 	kmem_cache_free(affs_inode_cachep, AFFS_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 affs_inode_info *ei = (struct affs_inode_info *) foo;
 

fs/afs/super.c

···
 
 #define AFS_FS_MAGIC 0x6B414653 /* 'kAFS' */
 
-static void afs_i_init_once(void *foo, struct kmem_cache *cachep,
-			    unsigned long flags);
+static void afs_i_init_once(struct kmem_cache *cachep, void *foo);
 static int afs_get_sb(struct file_system_type *fs_type,
 		      int flags, const char *dev_name,
 		      void *data, struct vfsmount *mnt);
···
 /*
  * initialise an inode cache slab element prior to any use
  */
-static void afs_i_init_once(void *_vnode, struct kmem_cache *cachep,
-			    unsigned long flags)
+static void afs_i_init_once(struct kmem_cache *cachep, void *_vnode)
 {
 	struct afs_vnode *vnode = _vnode;
 

fs/befs/linuxvfs.c

···
         kmem_cache_free(befs_inode_cachep, BEFS_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 befs_inode_info *bi = (struct befs_inode_info *) foo;
 

fs/bfs/inode.c

···
 	kmem_cache_free(bfs_inode_cachep, BFS_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 bfs_inode_info *bi = foo;
 

fs/block_dev.c

···
 	kmem_cache_free(bdev_cachep, bdi);
 }
 
-static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
+static void init_once(struct kmem_cache * cachep, void *foo)
 {
 	struct bdev_inode *ei = (struct bdev_inode *) foo;
 	struct block_device *bdev = &ei->bdev;

fs/cifs/cifsfs.c

···
 };
 
 static void
-cifs_init_once(void *inode, struct kmem_cache *cachep, unsigned long flags)
+cifs_init_once(struct kmem_cache *cachep, void *inode)
 {
 	struct cifsInodeInfo *cifsi = inode;
 

fs/coda/inode.c

···
 	kmem_cache_free(coda_inode_cachep, ITOC(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 coda_inode_info *ei = (struct coda_inode_info *) foo;
 

fs/ecryptfs/main.c

···
  * Initializes the ecryptfs_inode_info_cache when it is created
  */
 static void
-inode_info_init_once(void *vptr, struct kmem_cache *cachep, unsigned long flags)
+inode_info_init_once(struct kmem_cache *cachep, void *vptr)
 {
 	struct ecryptfs_inode_info *ei = (struct ecryptfs_inode_info *)vptr;
 
···
 	struct kmem_cache **cache;
 	const char *name;
 	size_t size;
-	void (*ctor)(void*, struct kmem_cache *, unsigned long);
+	void (*ctor)(struct kmem_cache *cache, void *obj);
 } ecryptfs_cache_infos[] = {
 	{
 		.cache = &ecryptfs_auth_tok_list_item_cache,

fs/efs/super.c

···
 	kmem_cache_free(efs_inode_cachep, INODE_INFO(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 efs_inode_info *ei = (struct efs_inode_info *) foo;
 

fs/ext2/super.c

···
 	kmem_cache_free(ext2_inode_cachep, EXT2_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 ext2_inode_info *ei = (struct ext2_inode_info *) foo;
 

fs/ext3/super.c

···
 	kmem_cache_free(ext3_inode_cachep, EXT3_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 ext3_inode_info *ei = (struct ext3_inode_info *) foo;
 

fs/ext4/super.c

···
 	kmem_cache_free(ext4_inode_cachep, EXT4_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 ext4_inode_info *ei = (struct ext4_inode_info *) foo;
 

fs/fat/cache.c

···
 
 static struct kmem_cache *fat_cache_cachep;
 
-static void init_once(void *foo, struct kmem_cache *cachep, unsigned long flags)
+static void init_once(struct kmem_cache *cachep, void *foo)
 {
 	struct fat_cache *cache = (struct fat_cache *)foo;
 

fs/fat/inode.c

···
 	kmem_cache_free(fat_inode_cachep, MSDOS_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 msdos_inode_info *ei = (struct msdos_inode_info *)foo;
 

fs/fuse/inode.c

···
 static decl_subsys(fuse, NULL, NULL);
 static decl_subsys(connections, NULL, NULL);
 
-static void fuse_inode_init_once(void *foo, struct kmem_cache *cachep,
-				 unsigned long flags)
+static void fuse_inode_init_once(struct kmem_cache *cachep, void *foo)
 {
 	struct inode * inode = foo;
 

fs/gfs2/main.c

···
 #include "util.h"
 #include "glock.h"
 
-static void gfs2_init_inode_once(void *foo, struct kmem_cache *cachep, unsigned long flags)
+static void gfs2_init_inode_once(struct kmem_cache *cachep, void *foo)
 {
 	struct gfs2_inode *ip = foo;
 
···
 	memset(ip->i_cache, 0, sizeof(ip->i_cache));
 }
 
-static void gfs2_init_glock_once(void *foo, struct kmem_cache *cachep, unsigned long flags)
+static void gfs2_init_glock_once(struct kmem_cache *cachep, void *foo)
 {
 	struct gfs2_glock *gl = foo;
 

fs/hfs/super.c

···
 	.fs_flags	= FS_REQUIRES_DEV,
 };
 
-static void hfs_init_once(void *p, struct kmem_cache *cachep, unsigned long flags)
+static void hfs_init_once(struct kmem_cache *cachep, void *p)
 {
 	struct hfs_inode_info *i = p;
 

fs/hfsplus/super.c

···
 	.fs_flags	= FS_REQUIRES_DEV,
 };
 
-static void hfsplus_init_once(void *p, struct kmem_cache *cachep, unsigned long flags)
+static void hfsplus_init_once(struct kmem_cache *cachep, void *p)
 {
 	struct hfsplus_inode_info *i = p;
 

fs/hpfs/super.c

···
 	kmem_cache_free(hpfs_inode_cachep, hpfs_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 hpfs_inode_info *ei = (struct hpfs_inode_info *) foo;
 

fs/hugetlbfs/inode.c

···
 };
 
 
-static void init_once(void *foo, struct kmem_cache *cachep, unsigned long flags)
+static void init_once(struct kmem_cache *cachep, void *foo)
 {
 	struct hugetlbfs_inode_info *ei = (struct hugetlbfs_inode_info *)foo;
 

fs/inode.c

···
 
 EXPORT_SYMBOL(inode_init_once);
 
-static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
+static void init_once(struct kmem_cache * cachep, void *foo)
 {
 	struct inode * inode = (struct inode *) foo;
 

fs/isofs/inode.c

···
 	kmem_cache_free(isofs_inode_cachep, ISOFS_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 iso_inode_info *ei = foo;
 

fs/jffs2/super.c

···
 	kmem_cache_free(jffs2_inode_cachep, JFFS2_INODE_INFO(inode));
 }
 
-static void jffs2_i_init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
+static void jffs2_i_init_once(struct kmem_cache *cachep, void *foo)
 {
 	struct jffs2_inode_info *ei = (struct jffs2_inode_info *) foo;
 

fs/jfs/jfs_metapage.c

···
 
 #endif
 
-static void init_once(void *foo, struct kmem_cache *cachep, unsigned long flags)
+static void init_once(struct kmem_cache *cachep, void *foo)
 {
 	struct metapage *mp = (struct metapage *)foo;
 

fs/jfs/super.c

···
 	.fs_flags	= FS_REQUIRES_DEV,
 };
 
-static void init_once(void *foo, struct kmem_cache * cachep, unsigned long flags)
+static void init_once(struct kmem_cache *cachep, void *foo)
 {
 	struct jfs_inode_info *jfs_ip = (struct jfs_inode_info *) foo;
 

fs/locks.c

···
  * Initialises the fields of the file lock which are invariant for
  * free file_locks.
  */
-static void init_once(void *foo, struct kmem_cache *cache, unsigned long flags)
+static void init_once(struct kmem_cache *cache, void *foo)
 {
 	struct file_lock *lock = (struct file_lock *) foo;
 

fs/minix/inode.c

···
 	kmem_cache_free(minix_inode_cachep, minix_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 minix_inode_info *ei = (struct minix_inode_info *) foo;
 

fs/ncpfs/inode.c

···
 	kmem_cache_free(ncp_inode_cachep, NCP_FINFO(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 ncp_inode_info *ei = (struct ncp_inode_info *) foo;
 

fs/nfs/inode.c

···
 #endif
 }
 
-static void init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
+static void init_once(struct kmem_cache * cachep, void *foo)
 {
 	struct nfs_inode *nfsi = (struct nfs_inode *) foo;
 

fs/ntfs/super.c

···
 struct kmem_cache *ntfs_big_inode_cache;
 
 /* Init once constructor for the inode slab cache. */
-static void ntfs_big_inode_init_once(void *foo, struct kmem_cache *cachep,
-		unsigned long flags)
+static void ntfs_big_inode_init_once(struct kmem_cache *cachep, void *foo)
 {
 	ntfs_inode *ni = (ntfs_inode *)foo;
 

fs/ocfs2/dlm/dlmfs.c

···
 	return writelen;
 }
 
-static void dlmfs_init_once(void *foo,
-			    struct kmem_cache *cachep,
-			    unsigned long flags)
+static void dlmfs_init_once(struct kmem_cache *cachep,
+			    void *foo)
 {
 	struct dlmfs_inode_private *ip =
 		(struct dlmfs_inode_private *) foo;

fs/ocfs2/super.c

···
 	return status;
 }
 
-static void ocfs2_inode_init_once(void *data,
-				  struct kmem_cache *cachep,
-				  unsigned long flags)
+static void ocfs2_inode_init_once(struct kmem_cache *cachep, void *data)
 {
 	struct ocfs2_inode_info *oi = data;
 

fs/openpromfs/inode.c

···
 	.kill_sb	= kill_anon_super,
 };
 
-static void op_inode_init_once(void *data, struct kmem_cache * cachep, unsigned long flags)
+static void op_inode_init_once(struct kmem_cache * cachep, void *data)
 {
 	struct op_inode_info *oi = (struct op_inode_info *) data;
 

fs/proc/inode.c

···
 	kmem_cache_free(proc_inode_cachep, PROC_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 proc_inode *ei = (struct proc_inode *) foo;
 

fs/qnx4/inode.c

···
 	kmem_cache_free(qnx4_inode_cachep, qnx4_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 qnx4_inode_info *ei = (struct qnx4_inode_info *) foo;
 

fs/reiserfs/super.c

···
 	kmem_cache_free(reiserfs_inode_cachep, REISERFS_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 reiserfs_inode_info *ei = (struct reiserfs_inode_info *)foo;
 

fs/romfs/inode.c

···
 	kmem_cache_free(romfs_inode_cachep, ROMFS_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 romfs_inode_info *ei = foo;
 

fs/smbfs/inode.c

···
 	kmem_cache_free(smb_inode_cachep, SMB_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 smb_inode_info *ei = (struct smb_inode_info *) foo;
 

fs/sysv/inode.c

···
 	kmem_cache_free(sysv_inode_cachep, SYSV_I(inode));
 }
 
-static void init_once(void *p, struct kmem_cache *cachep, unsigned long flags)
+static void init_once(struct kmem_cache *cachep, void *p)
 {
 	struct sysv_inode_info *si = (struct sysv_inode_info *)p;
 

fs/udf/super.c

···
 	kmem_cache_free(udf_inode_cachep, UDF_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 udf_inode_info *ei = (struct udf_inode_info *)foo;
 

fs/ufs/super.c

···
 	kmem_cache_free(ufs_inode_cachep, UFS_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 ufs_inode_info *ei = (struct ufs_inode_info *) foo;
 

fs/xfs/linux-2.6/kmem.h

···
 
 static inline kmem_zone_t *
 kmem_zone_init_flags(int size, char *zone_name, unsigned long flags,
-		     void (*construct)(void *, kmem_zone_t *, unsigned long))
+		     void (*construct)(kmem_zone_t *, void *))
 {
 	return kmem_cache_create(zone_name, size, 0, flags, construct);
 }

fs/xfs/linux-2.6/xfs_super.c

···
 
 STATIC void
 xfs_fs_inode_init_once(
-	void			*vnode,
 	kmem_zone_t		*zonep,
-	unsigned long		flags)
+	void			*vnode)
 {
 	inode_init_once(vn_to_inode((bhv_vnode_t *)vnode));
 }

include/asm-x86/pgtable_32.h

···
 extern struct page *pgd_list;
 void check_pgt_cache(void);
 
-void pmd_ctor(void *, struct kmem_cache *, unsigned long);
+void pmd_ctor(struct kmem_cache *, void *);
 void pgtable_cache_init(void);
 void paging_init(void);
 

include/linux/slab.h

···
 
 struct kmem_cache *kmem_cache_create(const char *, size_t, size_t,
 			unsigned long,
-			void (*)(void *, struct kmem_cache *, unsigned long));
+			void (*)(struct kmem_cache *, void *));
 void kmem_cache_destroy(struct kmem_cache *);
 int kmem_cache_shrink(struct kmem_cache *);
 void kmem_cache_free(struct kmem_cache *, void *);

include/linux/slub_def.h

···
 	/* Allocation and freeing of slabs */
 	int objects;		/* Number of objects in slab */
 	int refcount;		/* Refcount for slab cache destroy */
-	void (*ctor)(void *, struct kmem_cache *, unsigned long);
+	void (*ctor)(struct kmem_cache *, void *);
 	int inuse;		/* Offset to metadata */
 	int align;		/* Alignment */
 	const char *name;	/* Name (only for display!) */

ipc/mqueue.c

···
 	return get_sb_single(fs_type, flags, data, mqueue_fill_super, mnt);
 }
 
-static void init_once(void *foo, struct kmem_cache * cachep, unsigned long flags)
+static void init_once(struct kmem_cache *cachep, void *foo)
 {
 	struct mqueue_inode_info *p = (struct mqueue_inode_info *) foo;
 

kernel/fork.c

···
 #define ARCH_MIN_MMSTRUCT_ALIGN 0
 #endif
 
-static void sighand_ctor(void *data, struct kmem_cache *cachep,
-			unsigned long flags)
+static void sighand_ctor(struct kmem_cache *cachep, void *data)
 {
 	struct sighand_struct *sighand = data;
 

lib/idr.c

···
 }
 EXPORT_SYMBOL(idr_replace);
 
-static void idr_cache_ctor(void * idr_layer, struct kmem_cache *idr_layer_cache,
-		unsigned long flags)
+static void idr_cache_ctor(struct kmem_cache *idr_layer_cache, void *idr_layer)
 {
 	memset(idr_layer, 0, sizeof(struct idr_layer));
 }

lib/radix-tree.c

···
 EXPORT_SYMBOL(radix_tree_tagged);
 
 static void
-radix_tree_node_ctor(void *node, struct kmem_cache *cachep, unsigned long flags)
+radix_tree_node_ctor(struct kmem_cache *cachep, void *node)
 {
 	memset(node, 0, sizeof(struct radix_tree_node));
 }

mm/rmap.c

···
 		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;
 

mm/shmem.c

···
 	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;
 

mm/slab.c

···
 	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;
···
 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;
···
 		 * 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)
···
 					 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;
 	}
···
 #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",

mm/slob.c

···
 	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;
 
···
 		b = slob_new_page(flags, get_order(c->size), node);
 
 	if (c->ctor)
-		c->ctor(b, c, 0);
+		c->ctor(c, b);
 
 	return b;
 }

mm/slub.c

···
 
 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
···
 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;
 }
···
 {
 	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)
···
 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;
···
 
 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;
 
···
 
 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;
 

net/socket.c

···
 			container_of(inode, struct socket_alloc, vfs_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 socket_alloc *ei = (struct socket_alloc *)foo;
 

net/sunrpc/rpc_pipe.c

···
 };
 
 static void
-init_once(void * foo, struct kmem_cache * cachep, unsigned long flags)
+init_once(struct kmem_cache * cachep, void *foo)
 {
 	struct rpc_inode *rpci = (struct rpc_inode *) foo;