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Message-ID: <48763C60.9020805@linux.vnet.ibm.com>
Date: Thu, 10 Jul 2008 11:44:16 -0500
From: Jon Tollefson <kniht@...ux.vnet.ibm.com>
To: Alexey Dobriyan <adobriyan@...il.com>
CC: Andrew Morton <akpm@...ux-foundation.org>, penberg@...helsinki.fi,
mpm@...enic.com, linux-mm@...ck.org, linux-kernel@...r.kernel.org,
cl@...ux-foundation.org
Subject: Re: SL*B: drop kmem cache argument from constructor
Alexey Dobriyan wrote:
> Kmem cache passed to constructor is only needed for constructors that are
> themselves multiplexeres. Nobody uses this "feature", nor does anybody uses
> passed kmem cache in non-trivial way, so pass only pointer to object.
>
> Non-trivial places are:
> arch/powerpc/mm/init_64.c
> arch/powerpc/mm/hugetlbpage.c
>
...<snip>...
> --- a/arch/powerpc/mm/hugetlbpage.c
> +++ b/arch/powerpc/mm/hugetlbpage.c
> @@ -595,9 +595,9 @@ static int __init hugepage_setup_sz(char *str)
> }
> __setup("hugepagesz=", hugepage_setup_sz);
>
> -static void zero_ctor(struct kmem_cache *cache, void *addr)
> +static void zero_ctor(void *addr)
> {
> - memset(addr, 0, kmem_cache_size(cache));
> + memset(addr, 0, HUGEPTE_TABLE_SIZE);
>
This isn't going to work with the multiple huge page size support. The
HUGEPTE_TABLE_SIZE macro now takes a parameter with of the mmu psize
index to indicate the size of page.
Jon
> }
>
> static int __init hugetlbpage_init(void)
> --- a/arch/powerpc/mm/init_64.c
> +++ b/arch/powerpc/mm/init_64.c
> @@ -136,9 +136,14 @@ static int __init setup_kcore(void)
> module_init(setup_kcore);
> #endif
>
> -static void zero_ctor(struct kmem_cache *cache, void *addr)
> +static void pgd_ctor(void *addr)
> {
> - memset(addr, 0, kmem_cache_size(cache));
> + memset(addr, 0, PGD_TABLE_SIZE);
> +}
> +
> +static void pmd_ctor(void *addr)
> +{
> + memset(addr, 0, PMD_TABLE_SIZE);
> }
>
> static const unsigned int pgtable_cache_size[2] = {
> @@ -163,19 +168,8 @@ struct kmem_cache *pgtable_cache[ARRAY_SIZE(pgtable_cache_size)];
>
> void pgtable_cache_init(void)
> {
> - int i;
> -
> - for (i = 0; i < ARRAY_SIZE(pgtable_cache_size); i++) {
> - int size = pgtable_cache_size[i];
> - const char *name = pgtable_cache_name[i];
> -
> - pr_debug("Allocating page table cache %s (#%d) "
> - "for size: %08x...\n", name, i, size);
> - pgtable_cache[i] = kmem_cache_create(name,
> - size, size,
> - SLAB_PANIC,
> - zero_ctor);
> - }
> + pgtable_cache[0] = kmem_cache_create(pgtable_cache_name[0], PGD_TABLE_SIZE, PGD_TABLE_SIZE, SLAB_PANIC, pgd_ctor);
> + pgtable_cache[1] = kmem_cache_create(pgtable_cache_name[1], PMD_TABLE_SIZE, PMD_TABLE_SIZE, SLAB_PANIC, pmd_ctor);
> }
>
> #ifdef CONFIG_SPARSEMEM_VMEMMAP
> --- a/arch/powerpc/platforms/cell/spufs/inode.c
> +++ b/arch/powerpc/platforms/cell/spufs/inode.c
> @@ -69,7 +69,7 @@ spufs_destroy_inode(struct inode *inode)
> }
>
> static void
> -spufs_init_once(struct kmem_cache *cachep, void *p)
> +spufs_init_once(void *p)
> {
> struct spufs_inode_info *ei = p;
>
> --- a/arch/sh/mm/pmb.c
> +++ b/arch/sh/mm/pmb.c
> @@ -293,7 +293,7 @@ void pmb_unmap(unsigned long addr)
> } while (pmbe);
> }
>
> -static void pmb_cache_ctor(struct kmem_cache *cachep, void *pmb)
> +static void pmb_cache_ctor(void *pmb)
> {
> struct pmb_entry *pmbe = pmb;
>
> --- a/arch/xtensa/mm/init.c
> +++ b/arch/xtensa/mm/init.c
> @@ -309,7 +309,7 @@ void show_mem(void)
>
> struct kmem_cache *pgtable_cache __read_mostly;
>
> -static void pgd_ctor(struct kmem_cache *cache, void* addr)
> +static void pgd_ctor(void* addr)
> {
> pte_t* ptep = (pte_t*)addr;
> int i;
> --- a/drivers/usb/mon/mon_text.c
> +++ b/drivers/usb/mon/mon_text.c
> @@ -87,7 +87,7 @@ struct mon_reader_text {
>
> static struct dentry *mon_dir; /* Usually /sys/kernel/debug/usbmon */
>
> -static void mon_text_ctor(struct kmem_cache *, void *);
> +static void mon_text_ctor(void *);
>
> struct mon_text_ptr {
> int cnt, limit;
> @@ -720,7 +720,7 @@ void mon_text_del(struct mon_bus *mbus)
> /*
> * Slab interface: constructor.
> */
> -static void mon_text_ctor(struct kmem_cache *slab, void *mem)
> +static void mon_text_ctor(void *mem)
> {
> /*
> * Nothing to initialize. No, really!
> --- a/fs/adfs/super.c
> +++ b/fs/adfs/super.c
> @@ -249,7 +249,7 @@ static void adfs_destroy_inode(struct inode *inode)
> kmem_cache_free(adfs_inode_cachep, ADFS_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct adfs_inode_info *ei = (struct adfs_inode_info *) foo;
>
> --- a/fs/affs/super.c
> +++ b/fs/affs/super.c
> @@ -90,7 +90,7 @@ static void affs_destroy_inode(struct inode *inode)
> kmem_cache_free(affs_inode_cachep, AFFS_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct affs_inode_info *ei = (struct affs_inode_info *) foo;
>
> --- a/fs/afs/super.c
> +++ b/fs/afs/super.c
> @@ -27,7 +27,7 @@
>
> #define AFS_FS_MAGIC 0x6B414653 /* 'kAFS' */
>
> -static void afs_i_init_once(struct kmem_cache *cachep, void *foo);
> +static void afs_i_init_once(void *foo);
> static int afs_get_sb(struct file_system_type *fs_type,
> int flags, const char *dev_name,
> void *data, struct vfsmount *mnt);
> @@ -449,7 +449,7 @@ static void afs_put_super(struct super_block *sb)
> /*
> * initialise an inode cache slab element prior to any use
> */
> -static void afs_i_init_once(struct kmem_cache *cachep, void *_vnode)
> +static void afs_i_init_once(void *_vnode)
> {
> struct afs_vnode *vnode = _vnode;
>
> --- a/fs/befs/linuxvfs.c
> +++ b/fs/befs/linuxvfs.c
> @@ -289,7 +289,7 @@ befs_destroy_inode(struct inode *inode)
> kmem_cache_free(befs_inode_cachep, BEFS_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct befs_inode_info *bi = (struct befs_inode_info *) foo;
>
> --- a/fs/bfs/inode.c
> +++ b/fs/bfs/inode.c
> @@ -259,7 +259,7 @@ static void bfs_destroy_inode(struct inode *inode)
> kmem_cache_free(bfs_inode_cachep, BFS_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct bfs_inode_info *bi = foo;
>
> --- a/fs/block_dev.c
> +++ b/fs/block_dev.c
> @@ -271,7 +271,7 @@ static void bdev_destroy_inode(struct inode *inode)
> kmem_cache_free(bdev_cachep, bdi);
> }
>
> -static void init_once(struct kmem_cache * cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct bdev_inode *ei = (struct bdev_inode *) foo;
> struct block_device *bdev = &ei->bdev;
> --- a/fs/buffer.c
> +++ b/fs/buffer.c
> @@ -3259,7 +3259,7 @@ int bh_submit_read(struct buffer_head *bh)
> EXPORT_SYMBOL(bh_submit_read);
>
> static void
> -init_buffer_head(struct kmem_cache *cachep, void *data)
> +init_buffer_head(void *data)
> {
> struct buffer_head *bh = data;
>
> --- a/fs/cifs/cifsfs.c
> +++ b/fs/cifs/cifsfs.c
> @@ -766,7 +766,7 @@ const struct file_operations cifs_dir_ops = {
> };
>
> static void
> -cifs_init_once(struct kmem_cache *cachep, void *inode)
> +cifs_init_once(void *inode)
> {
> struct cifsInodeInfo *cifsi = inode;
>
> --- a/fs/coda/inode.c
> +++ b/fs/coda/inode.c
> @@ -58,7 +58,7 @@ static void coda_destroy_inode(struct inode *inode)
> kmem_cache_free(coda_inode_cachep, ITOC(inode));
> }
>
> -static void init_once(struct kmem_cache * cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct coda_inode_info *ei = (struct coda_inode_info *) foo;
>
> --- a/fs/ecryptfs/main.c
> +++ b/fs/ecryptfs/main.c
> @@ -605,7 +605,7 @@ static struct file_system_type ecryptfs_fs_type = {
> * Initializes the ecryptfs_inode_info_cache when it is created
> */
> static void
> -inode_info_init_once(struct kmem_cache *cachep, void *vptr)
> +inode_info_init_once(void *vptr)
> {
> struct ecryptfs_inode_info *ei = (struct ecryptfs_inode_info *)vptr;
>
> @@ -616,7 +616,7 @@ static struct ecryptfs_cache_info {
> struct kmem_cache **cache;
> const char *name;
> size_t size;
> - void (*ctor)(struct kmem_cache *cache, void *obj);
> + void (*ctor)(void *obj);
> } ecryptfs_cache_infos[] = {
> {
> .cache = &ecryptfs_auth_tok_list_item_cache,
> --- a/fs/efs/super.c
> +++ b/fs/efs/super.c
> @@ -70,7 +70,7 @@ static void efs_destroy_inode(struct inode *inode)
> kmem_cache_free(efs_inode_cachep, INODE_INFO(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct efs_inode_info *ei = (struct efs_inode_info *) foo;
>
> --- a/fs/ext2/super.c
> +++ b/fs/ext2/super.c
> @@ -158,7 +158,7 @@ static void ext2_destroy_inode(struct inode *inode)
> kmem_cache_free(ext2_inode_cachep, EXT2_I(inode));
> }
>
> -static void init_once(struct kmem_cache * cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct ext2_inode_info *ei = (struct ext2_inode_info *) foo;
>
> --- a/fs/ext3/super.c
> +++ b/fs/ext3/super.c
> @@ -472,7 +472,7 @@ static void ext3_destroy_inode(struct inode *inode)
> kmem_cache_free(ext3_inode_cachep, EXT3_I(inode));
> }
>
> -static void init_once(struct kmem_cache * cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct ext3_inode_info *ei = (struct ext3_inode_info *) foo;
>
> --- a/fs/ext4/super.c
> +++ b/fs/ext4/super.c
> @@ -587,7 +587,7 @@ static void ext4_destroy_inode(struct inode *inode)
> kmem_cache_free(ext4_inode_cachep, EXT4_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct ext4_inode_info *ei = (struct ext4_inode_info *) foo;
>
> --- a/fs/fat/cache.c
> +++ b/fs/fat/cache.c
> @@ -36,7 +36,7 @@ static inline int fat_max_cache(struct inode *inode)
>
> static struct kmem_cache *fat_cache_cachep;
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct fat_cache *cache = (struct fat_cache *)foo;
>
> --- a/fs/fat/inode.c
> +++ b/fs/fat/inode.c
> @@ -496,7 +496,7 @@ static void fat_destroy_inode(struct inode *inode)
> kmem_cache_free(fat_inode_cachep, MSDOS_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct msdos_inode_info *ei = (struct msdos_inode_info *)foo;
>
> --- a/fs/fuse/inode.c
> +++ b/fs/fuse/inode.c
> @@ -781,7 +781,7 @@ static inline void unregister_fuseblk(void)
> }
> #endif
>
> -static void fuse_inode_init_once(struct kmem_cache *cachep, void *foo)
> +static void fuse_inode_init_once(void *foo)
> {
> struct inode * inode = foo;
>
> --- a/fs/gfs2/main.c
> +++ b/fs/gfs2/main.c
> @@ -24,7 +24,7 @@
> #include "util.h"
> #include "glock.h"
>
> -static void gfs2_init_inode_once(struct kmem_cache *cachep, void *foo)
> +static void gfs2_init_inode_once(void *foo)
> {
> struct gfs2_inode *ip = foo;
>
> @@ -33,7 +33,7 @@ static void gfs2_init_inode_once(struct kmem_cache *cachep, void *foo)
> ip->i_alloc = NULL;
> }
>
> -static void gfs2_init_glock_once(struct kmem_cache *cachep, void *foo)
> +static void gfs2_init_glock_once(void *foo)
> {
> struct gfs2_glock *gl = foo;
>
> --- a/fs/hfs/super.c
> +++ b/fs/hfs/super.c
> @@ -432,7 +432,7 @@ static struct file_system_type hfs_fs_type = {
> .fs_flags = FS_REQUIRES_DEV,
> };
>
> -static void hfs_init_once(struct kmem_cache *cachep, void *p)
> +static void hfs_init_once(void *p)
> {
> struct hfs_inode_info *i = p;
>
> --- a/fs/hfsplus/super.c
> +++ b/fs/hfsplus/super.c
> @@ -485,7 +485,7 @@ static struct file_system_type hfsplus_fs_type = {
> .fs_flags = FS_REQUIRES_DEV,
> };
>
> -static void hfsplus_init_once(struct kmem_cache *cachep, void *p)
> +static void hfsplus_init_once(void *p)
> {
> struct hfsplus_inode_info *i = p;
>
> --- a/fs/hpfs/super.c
> +++ b/fs/hpfs/super.c
> @@ -173,7 +173,7 @@ static void hpfs_destroy_inode(struct inode *inode)
> kmem_cache_free(hpfs_inode_cachep, hpfs_i(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct hpfs_inode_info *ei = (struct hpfs_inode_info *) foo;
>
> --- a/fs/hugetlbfs/inode.c
> +++ b/fs/hugetlbfs/inode.c
> @@ -696,7 +696,7 @@ static const struct address_space_operations hugetlbfs_aops = {
> };
>
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct hugetlbfs_inode_info *ei = (struct hugetlbfs_inode_info *)foo;
>
> --- a/fs/inode.c
> +++ b/fs/inode.c
> @@ -224,7 +224,7 @@ void inode_init_once(struct inode *inode)
>
> EXPORT_SYMBOL(inode_init_once);
>
> -static void init_once(struct kmem_cache * cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct inode * inode = (struct inode *) foo;
>
> --- a/fs/isofs/inode.c
> +++ b/fs/isofs/inode.c
> @@ -73,7 +73,7 @@ static void isofs_destroy_inode(struct inode *inode)
> kmem_cache_free(isofs_inode_cachep, ISOFS_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct iso_inode_info *ei = foo;
>
> --- a/fs/jffs2/super.c
> +++ b/fs/jffs2/super.c
> @@ -44,7 +44,7 @@ static void jffs2_destroy_inode(struct inode *inode)
> kmem_cache_free(jffs2_inode_cachep, JFFS2_INODE_INFO(inode));
> }
>
> -static void jffs2_i_init_once(struct kmem_cache *cachep, void *foo)
> +static void jffs2_i_init_once(void *foo)
> {
> struct jffs2_inode_info *f = foo;
>
> --- a/fs/jfs/jfs_metapage.c
> +++ b/fs/jfs/jfs_metapage.c
> @@ -180,7 +180,7 @@ static inline void remove_metapage(struct page *page, struct metapage *mp)
>
> #endif
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct metapage *mp = (struct metapage *)foo;
>
> --- a/fs/jfs/super.c
> +++ b/fs/jfs/super.c
> @@ -760,7 +760,7 @@ static struct file_system_type jfs_fs_type = {
> .fs_flags = FS_REQUIRES_DEV,
> };
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct jfs_inode_info *jfs_ip = (struct jfs_inode_info *) foo;
>
> --- a/fs/locks.c
> +++ b/fs/locks.c
> @@ -201,7 +201,7 @@ EXPORT_SYMBOL(locks_init_lock);
> * Initialises the fields of the file lock which are invariant for
> * free file_locks.
> */
> -static void init_once(struct kmem_cache *cache, void *foo)
> +static void init_once(void *foo)
> {
> struct file_lock *lock = (struct file_lock *) foo;
>
> --- a/fs/minix/inode.c
> +++ b/fs/minix/inode.c
> @@ -68,7 +68,7 @@ static void minix_destroy_inode(struct inode *inode)
> kmem_cache_free(minix_inode_cachep, minix_i(inode));
> }
>
> -static void init_once(struct kmem_cache * cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct minix_inode_info *ei = (struct minix_inode_info *) foo;
>
> --- a/fs/ncpfs/inode.c
> +++ b/fs/ncpfs/inode.c
> @@ -64,7 +64,7 @@ static void ncp_destroy_inode(struct inode *inode)
> kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct ncp_inode_info *ei = (struct ncp_inode_info *) foo;
>
> --- a/fs/nfs/inode.c
> +++ b/fs/nfs/inode.c
> @@ -1193,7 +1193,7 @@ static inline void nfs4_init_once(struct nfs_inode *nfsi)
> #endif
> }
>
> -static void init_once(struct kmem_cache * cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct nfs_inode *nfsi = (struct nfs_inode *) foo;
>
> --- a/fs/ntfs/super.c
> +++ b/fs/ntfs/super.c
> @@ -3080,7 +3080,7 @@ struct kmem_cache *ntfs_inode_cache;
> struct kmem_cache *ntfs_big_inode_cache;
>
> /* Init once constructor for the inode slab cache. */
> -static void ntfs_big_inode_init_once(struct kmem_cache *cachep, void *foo)
> +static void ntfs_big_inode_init_once(void *foo)
> {
> ntfs_inode *ni = (ntfs_inode *)foo;
>
> --- a/fs/ocfs2/dlm/dlmfs.c
> +++ b/fs/ocfs2/dlm/dlmfs.c
> @@ -267,8 +267,7 @@ static ssize_t dlmfs_file_write(struct file *filp,
> return writelen;
> }
>
> -static void dlmfs_init_once(struct kmem_cache *cachep,
> - void *foo)
> +static void dlmfs_init_once(void *foo)
> {
> struct dlmfs_inode_private *ip =
> (struct dlmfs_inode_private *) foo;
> --- a/fs/ocfs2/super.c
> +++ b/fs/ocfs2/super.c
> @@ -1118,7 +1118,7 @@ bail:
> return status;
> }
>
> -static void ocfs2_inode_init_once(struct kmem_cache *cachep, void *data)
> +static void ocfs2_inode_init_once(void *data)
> {
> struct ocfs2_inode_info *oi = data;
>
> --- a/fs/openpromfs/inode.c
> +++ b/fs/openpromfs/inode.c
> @@ -430,7 +430,7 @@ static struct file_system_type openprom_fs_type = {
> .kill_sb = kill_anon_super,
> };
>
> -static void op_inode_init_once(struct kmem_cache * cachep, void *data)
> +static void op_inode_init_once(void *data)
> {
> struct op_inode_info *oi = (struct op_inode_info *) data;
>
> --- a/fs/proc/inode.c
> +++ b/fs/proc/inode.c
> @@ -94,7 +94,7 @@ static void proc_destroy_inode(struct inode *inode)
> kmem_cache_free(proc_inode_cachep, PROC_I(inode));
> }
>
> -static void init_once(struct kmem_cache * cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct proc_inode *ei = (struct proc_inode *) foo;
>
> --- a/fs/qnx4/inode.c
> +++ b/fs/qnx4/inode.c
> @@ -553,7 +553,7 @@ static void qnx4_destroy_inode(struct inode *inode)
> kmem_cache_free(qnx4_inode_cachep, qnx4_i(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct qnx4_inode_info *ei = (struct qnx4_inode_info *) foo;
>
> --- a/fs/reiserfs/super.c
> +++ b/fs/reiserfs/super.c
> @@ -520,7 +520,7 @@ static void reiserfs_destroy_inode(struct inode *inode)
> kmem_cache_free(reiserfs_inode_cachep, REISERFS_I(inode));
> }
>
> -static void init_once(struct kmem_cache * cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct reiserfs_inode_info *ei = (struct reiserfs_inode_info *)foo;
>
> --- a/fs/romfs/inode.c
> +++ b/fs/romfs/inode.c
> @@ -577,7 +577,7 @@ static void romfs_destroy_inode(struct inode *inode)
> kmem_cache_free(romfs_inode_cachep, ROMFS_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct romfs_inode_info *ei = foo;
>
> --- a/fs/smbfs/inode.c
> +++ b/fs/smbfs/inode.c
> @@ -67,7 +67,7 @@ static void smb_destroy_inode(struct inode *inode)
> kmem_cache_free(smb_inode_cachep, SMB_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct smb_inode_info *ei = (struct smb_inode_info *) foo;
>
> --- a/fs/sysv/inode.c
> +++ b/fs/sysv/inode.c
> @@ -326,7 +326,7 @@ static void sysv_destroy_inode(struct inode *inode)
> kmem_cache_free(sysv_inode_cachep, SYSV_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *p)
> +static void init_once(void *p)
> {
> struct sysv_inode_info *si = (struct sysv_inode_info *)p;
>
> --- a/fs/udf/super.c
> +++ b/fs/udf/super.c
> @@ -148,7 +148,7 @@ static void udf_destroy_inode(struct inode *inode)
> kmem_cache_free(udf_inode_cachep, UDF_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct udf_inode_info *ei = (struct udf_inode_info *)foo;
>
> --- a/fs/ufs/super.c
> +++ b/fs/ufs/super.c
> @@ -1301,7 +1301,7 @@ static void ufs_destroy_inode(struct inode *inode)
> kmem_cache_free(ufs_inode_cachep, UFS_I(inode));
> }
>
> -static void init_once(struct kmem_cache * cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct ufs_inode_info *ei = (struct ufs_inode_info *) foo;
>
> --- a/fs/xfs/linux-2.6/kmem.h
> +++ b/fs/xfs/linux-2.6/kmem.h
> @@ -79,7 +79,7 @@ kmem_zone_init(int size, char *zone_name)
>
> static inline kmem_zone_t *
> kmem_zone_init_flags(int size, char *zone_name, unsigned long flags,
> - void (*construct)(kmem_zone_t *, void *))
> + void (*construct)(void *))
> {
> return kmem_cache_create(zone_name, size, 0, flags, construct);
> }
> --- a/fs/xfs/linux-2.6/xfs_super.c
> +++ b/fs/xfs/linux-2.6/xfs_super.c
> @@ -843,7 +843,6 @@ xfs_fs_destroy_inode(
>
> STATIC void
> xfs_fs_inode_init_once(
> - kmem_zone_t *zonep,
> void *vnode)
> {
> inode_init_once(vn_to_inode((bhv_vnode_t *)vnode));
> --- a/include/linux/slab.h
> +++ b/include/linux/slab.h
> @@ -58,7 +58,7 @@ int slab_is_available(void);
>
> struct kmem_cache *kmem_cache_create(const char *, size_t, size_t,
> unsigned long,
> - void (*)(struct kmem_cache *, void *));
> + void (*)(void *));
> void kmem_cache_destroy(struct kmem_cache *);
> int kmem_cache_shrink(struct kmem_cache *);
> void kmem_cache_free(struct kmem_cache *, void *);
> --- a/include/linux/slub_def.h
> +++ b/include/linux/slub_def.h
> @@ -85,7 +85,7 @@ struct kmem_cache {
> struct kmem_cache_order_objects min;
> gfp_t allocflags; /* gfp flags to use on each alloc */
> int refcount; /* Refcount for slab cache destroy */
> - void (*ctor)(struct kmem_cache *, void *);
> + void (*ctor)(void *);
> int inuse; /* Offset to metadata */
> int align; /* Alignment */
> const char *name; /* Name (only for display!) */
> --- a/ipc/mqueue.c
> +++ b/ipc/mqueue.c
> @@ -207,7 +207,7 @@ static int mqueue_get_sb(struct file_system_type *fs_type,
> return get_sb_single(fs_type, flags, data, mqueue_fill_super, mnt);
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct mqueue_inode_info *p = (struct mqueue_inode_info *) foo;
>
> --- a/kernel/fork.c
> +++ b/kernel/fork.c
> @@ -1403,7 +1403,7 @@ long do_fork(unsigned long clone_flags,
> #define ARCH_MIN_MMSTRUCT_ALIGN 0
> #endif
>
> -static void sighand_ctor(struct kmem_cache *cachep, void *data)
> +static void sighand_ctor(void *data)
> {
> struct sighand_struct *sighand = data;
>
> --- a/lib/idr.c
> +++ b/lib/idr.c
> @@ -580,7 +580,7 @@ void *idr_replace(struct idr *idp, void *ptr, int id)
> }
> EXPORT_SYMBOL(idr_replace);
>
> -static void idr_cache_ctor(struct kmem_cache *idr_layer_cache, void *idr_layer)
> +static void idr_cache_ctor(void *idr_layer)
> {
> memset(idr_layer, 0, sizeof(struct idr_layer));
> }
> --- a/lib/radix-tree.c
> +++ b/lib/radix-tree.c
> @@ -1051,7 +1051,7 @@ int radix_tree_tagged(struct radix_tree_root *root, unsigned int tag)
> EXPORT_SYMBOL(radix_tree_tagged);
>
> static void
> -radix_tree_node_ctor(struct kmem_cache *cachep, void *node)
> +radix_tree_node_ctor(void *node)
> {
> memset(node, 0, sizeof(struct radix_tree_node));
> }
> --- a/mm/rmap.c
> +++ b/mm/rmap.c
> @@ -138,7 +138,7 @@ void anon_vma_unlink(struct vm_area_struct *vma)
> anon_vma_free(anon_vma);
> }
>
> -static void anon_vma_ctor(struct kmem_cache *cachep, void *data)
> +static void anon_vma_ctor(void *data)
> {
> struct anon_vma *anon_vma = data;
>
> --- a/mm/shmem.c
> +++ b/mm/shmem.c
> @@ -2330,7 +2330,7 @@ static void shmem_destroy_inode(struct inode *inode)
> kmem_cache_free(shmem_inode_cachep, SHMEM_I(inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct shmem_inode_info *p = (struct shmem_inode_info *) foo;
>
> --- a/mm/slab.c
> +++ b/mm/slab.c
> @@ -406,7 +406,7 @@ struct kmem_cache {
> unsigned int dflags; /* dynamic flags */
>
> /* constructor func */
> - void (*ctor)(struct kmem_cache *, void *);
> + void (*ctor)(void *);
>
> /* 5) cache creation/removal */
> const char *name;
> @@ -2145,8 +2145,7 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep)
> */
> struct kmem_cache *
> kmem_cache_create (const char *name, size_t size, size_t align,
> - unsigned long flags,
> - void (*ctor)(struct kmem_cache *, void *))
> + unsigned long flags, void (*ctor)(void *))
> {
> size_t left_over, slab_size, ralign;
> struct kmem_cache *cachep = NULL, *pc;
> @@ -2677,7 +2676,7 @@ static void cache_init_objs(struct kmem_cache *cachep,
> cachep->buffer_size / PAGE_SIZE, 0);
> #else
> if (cachep->ctor)
> - cachep->ctor(cachep, objp);
> + cachep->ctor(objp);
> #endif
> slab_bufctl(slabp)[i] = i + 1;
> }
> --- a/mm/slob.c
> +++ b/mm/slob.c
> @@ -525,12 +525,11 @@ struct kmem_cache {
> unsigned int size, align;
> unsigned long flags;
> const char *name;
> - void (*ctor)(struct kmem_cache *, void *);
> + void (*ctor)(void *);
> };
>
> struct kmem_cache *kmem_cache_create(const char *name, size_t size,
> - size_t align, unsigned long flags,
> - void (*ctor)(struct kmem_cache *, void *))
> + size_t align, unsigned long flags, void (*ctor)(void *))
> {
> struct kmem_cache *c;
>
> @@ -575,7 +574,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
> b = slob_new_page(flags, get_order(c->size), node);
>
> if (c->ctor)
> - c->ctor(c, b);
> + c->ctor(b);
>
> return b;
> }
> --- a/mm/slub.c
> +++ b/mm/slub.c
> @@ -1045,7 +1045,7 @@ __setup("slub_debug", setup_slub_debug);
>
> static unsigned long kmem_cache_flags(unsigned long objsize,
> unsigned long flags, const char *name,
> - void (*ctor)(struct kmem_cache *, void *))
> + void (*ctor)(void *))
> {
> /*
> * Enable debugging if selected on the kernel commandline.
> @@ -1073,7 +1073,7 @@ static inline int check_object(struct kmem_cache *s, struct page *page,
> 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)(struct kmem_cache *, void *))
> + void (*ctor)(void *))
> {
> return flags;
> }
> @@ -1136,7 +1136,7 @@ static void setup_object(struct kmem_cache *s, struct page *page,
> {
> setup_object_debug(s, page, object);
> if (unlikely(s->ctor))
> - s->ctor(s, object);
> + s->ctor(object);
> }
>
> static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node)
> @@ -2324,7 +2324,7 @@ static int calculate_sizes(struct kmem_cache *s, int forced_order)
> 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)(struct kmem_cache *, void *))
> + void (*ctor)(void *))
> {
> memset(s, 0, kmem_size);
> s->name = name;
> @@ -3079,7 +3079,7 @@ static int slab_unmergeable(struct kmem_cache *s)
>
> static struct kmem_cache *find_mergeable(size_t size,
> size_t align, unsigned long flags, const char *name,
> - void (*ctor)(struct kmem_cache *, void *))
> + void (*ctor)(void *))
> {
> struct kmem_cache *s;
>
> @@ -3119,8 +3119,7 @@ static struct kmem_cache *find_mergeable(size_t size,
> }
>
> struct kmem_cache *kmem_cache_create(const char *name, size_t size,
> - size_t align, unsigned long flags,
> - void (*ctor)(struct kmem_cache *, void *))
> + size_t align, unsigned long flags, void (*ctor)(void *))
> {
> struct kmem_cache *s;
>
> --- a/net/socket.c
> +++ b/net/socket.c
> @@ -262,7 +262,7 @@ static void sock_destroy_inode(struct inode *inode)
> container_of(inode, struct socket_alloc, vfs_inode));
> }
>
> -static void init_once(struct kmem_cache *cachep, void *foo)
> +static void init_once(void *foo)
> {
> struct socket_alloc *ei = (struct socket_alloc *)foo;
>
> --- a/net/sunrpc/rpc_pipe.c
> +++ b/net/sunrpc/rpc_pipe.c
> @@ -897,7 +897,7 @@ static struct file_system_type rpc_pipe_fs_type = {
> };
>
> static void
> -init_once(struct kmem_cache * cachep, void *foo)
> +init_once(void *foo)
> {
> struct rpc_inode *rpci = (struct rpc_inode *) foo;
>
>
> --
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