diff options
Diffstat (limited to 'fs/xfs/linux-2.6/kmem.c')
-rw-r--r-- | fs/xfs/linux-2.6/kmem.c | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/fs/xfs/linux-2.6/kmem.c b/fs/xfs/linux-2.6/kmem.c deleted file mode 100644 index a907de565db3..000000000000 --- a/fs/xfs/linux-2.6/kmem.c +++ /dev/null @@ -1,132 +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 - */ -#include <linux/mm.h> -#include <linux/highmem.h> -#include <linux/slab.h> -#include <linux/swap.h> -#include <linux/blkdev.h> -#include <linux/backing-dev.h> -#include "time.h" -#include "kmem.h" -#include "xfs_message.h" - -/* - * Greedy allocation. May fail and may return vmalloced memory. - * - * Must be freed using kmem_free_large. - */ -void * -kmem_zalloc_greedy(size_t *size, size_t minsize, size_t maxsize) -{ - void *ptr; - size_t kmsize = maxsize; - - while (!(ptr = kmem_zalloc_large(kmsize))) { - if ((kmsize >>= 1) <= minsize) - kmsize = minsize; - } - if (ptr) - *size = kmsize; - return ptr; -} - -void * -kmem_alloc(size_t size, unsigned int __nocast flags) -{ - int retries = 0; - gfp_t lflags = kmem_flags_convert(flags); - void *ptr; - - do { - ptr = kmalloc(size, lflags); - if (ptr || (flags & (KM_MAYFAIL|KM_NOSLEEP))) - return ptr; - if (!(++retries % 100)) - xfs_err(NULL, - "possible memory allocation deadlock in %s (mode:0x%x)", - __func__, lflags); - congestion_wait(BLK_RW_ASYNC, HZ/50); - } while (1); -} - -void * -kmem_zalloc(size_t size, unsigned int __nocast flags) -{ - void *ptr; - - ptr = kmem_alloc(size, flags); - if (ptr) - memset((char *)ptr, 0, (int)size); - return ptr; -} - -void -kmem_free(const void *ptr) -{ - if (!is_vmalloc_addr(ptr)) { - kfree(ptr); - } else { - vfree(ptr); - } -} - -void * -kmem_realloc(const void *ptr, size_t newsize, size_t oldsize, - unsigned int __nocast flags) -{ - void *new; - - new = kmem_alloc(newsize, flags); - if (ptr) { - if (new) - memcpy(new, ptr, - ((oldsize < newsize) ? oldsize : newsize)); - kmem_free(ptr); - } - return new; -} - -void * -kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags) -{ - int retries = 0; - gfp_t lflags = kmem_flags_convert(flags); - void *ptr; - - do { - ptr = kmem_cache_alloc(zone, lflags); - if (ptr || (flags & (KM_MAYFAIL|KM_NOSLEEP))) - return ptr; - if (!(++retries % 100)) - xfs_err(NULL, - "possible memory allocation deadlock in %s (mode:0x%x)", - __func__, lflags); - congestion_wait(BLK_RW_ASYNC, HZ/50); - } while (1); -} - -void * -kmem_zone_zalloc(kmem_zone_t *zone, unsigned int __nocast flags) -{ - void *ptr; - - ptr = kmem_zone_alloc(zone, flags); - if (ptr) - memset((char *)ptr, 0, kmem_cache_size(zone)); - return ptr; -} |