diff options
Diffstat (limited to 'fs/xfs/linux-2.6/kmem.h')
| -rw-r--r-- | fs/xfs/linux-2.6/kmem.h | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/fs/xfs/linux-2.6/kmem.h b/fs/xfs/linux-2.6/kmem.h deleted file mode 100644 index c64a29cdfff..00000000000 --- a/fs/xfs/linux-2.6/kmem.h +++ /dev/null @@ -1,143 +0,0 @@ -/* - * Copyright (c) 2000-2005 Silicon Graphics, Inc. - * All Rights Reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it would be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ -#ifndef __XFS_SUPPORT_KMEM_H__ -#define __XFS_SUPPORT_KMEM_H__ - -#include <linux/slab.h> -#include <linux/sched.h> -#include <linux/mm.h> - -/* - * memory management routines - */ -#define KM_SLEEP 0x0001u -#define KM_NOSLEEP 0x0002u -#define KM_NOFS 0x0004u -#define KM_MAYFAIL 0x0008u - -#define kmem_zone kmem_cache -#define kmem_zone_t struct kmem_cache - -typedef unsigned long xfs_pflags_t; - -#define PFLAGS_TEST_NOIO() (current->flags & PF_NOIO) -#define PFLAGS_TEST_FSTRANS() (current->flags & PF_FSTRANS) - -#define PFLAGS_SET_NOIO() do { \ - current->flags |= PF_NOIO; \ -} while (0) - -#define PFLAGS_CLEAR_NOIO() do { \ - current->flags &= ~PF_NOIO; \ -} while (0) - -/* these could be nested, so we save state */ -#define PFLAGS_SET_FSTRANS(STATEP) do { \ - *(STATEP) = current->flags; \ - current->flags |= PF_FSTRANS; \ -} while (0) - -#define PFLAGS_CLEAR_FSTRANS(STATEP) do { \ - *(STATEP) = current->flags; \ - current->flags &= ~PF_FSTRANS; \ -} while (0) - -/* Restore the PF_FSTRANS state to what was saved in STATEP */ -#define PFLAGS_RESTORE_FSTRANS(STATEP) do { \ - current->flags = ((current->flags & ~PF_FSTRANS) | \ - (*(STATEP) & PF_FSTRANS)); \ -} while (0) - -#define PFLAGS_DUP(OSTATEP, NSTATEP) do { \ - *(NSTATEP) = *(OSTATEP); \ -} while (0) - -static __inline gfp_t kmem_flags_convert(unsigned int __nocast flags) -{ - gfp_t lflags = __GFP_NOWARN; /* we'll report problems, if need be */ - -#ifdef DEBUG - if (unlikely(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL))) { - printk(KERN_WARNING - "XFS: memory allocation with wrong flags (%x)\n", flags); - BUG(); - } -#endif - - if (flags & KM_NOSLEEP) { - lflags |= GFP_ATOMIC; - } else { - lflags |= GFP_KERNEL; - - /* avoid recusive callbacks to filesystem during transactions */ - if (PFLAGS_TEST_FSTRANS() || (flags & KM_NOFS)) - lflags &= ~__GFP_FS; - } - - return lflags; -} - -static __inline kmem_zone_t * -kmem_zone_init(int size, char *zone_name) -{ - return kmem_cache_create(zone_name, size, 0, 0, NULL, NULL); -} - -static __inline void -kmem_zone_free(kmem_zone_t *zone, void *ptr) -{ - kmem_cache_free(zone, ptr); -} - -static __inline void -kmem_zone_destroy(kmem_zone_t *zone) -{ - if (zone && kmem_cache_destroy(zone)) - BUG(); -} - -extern void *kmem_zone_zalloc(kmem_zone_t *, unsigned int __nocast); -extern void *kmem_zone_alloc(kmem_zone_t *, unsigned int __nocast); - -extern void *kmem_alloc(size_t, unsigned int __nocast); -extern void *kmem_realloc(void *, size_t, size_t, unsigned int __nocast); -extern void *kmem_zalloc(size_t, unsigned int __nocast); -extern void kmem_free(void *, size_t); - -typedef struct shrinker *kmem_shaker_t; -typedef int (*kmem_shake_func_t)(int, gfp_t); - -static __inline kmem_shaker_t -kmem_shake_register(kmem_shake_func_t sfunc) -{ - return set_shrinker(DEFAULT_SEEKS, sfunc); -} - -static __inline void -kmem_shake_deregister(kmem_shaker_t shrinker) -{ - remove_shrinker(shrinker); -} - -static __inline int -kmem_shake_allow(gfp_t gfp_mask) -{ - return (gfp_mask & __GFP_WAIT); -} - -#endif /* __XFS_SUPPORT_KMEM_H__ */ |
