forked from luck/tmp_suning_uos_patched
cd354f1ae7
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
148 lines
3.3 KiB
C
148 lines
3.3 KiB
C
/*
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/mm.h>
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#include <linux/vmalloc.h>
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#include <linux/highmem.h>
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#include <linux/swap.h>
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#include <linux/blkdev.h>
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#include <linux/backing-dev.h>
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#include "time.h"
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#include "kmem.h"
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#define MAX_VMALLOCS 6
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#define MAX_SLAB_SIZE 0x20000
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void *
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kmem_alloc(size_t size, unsigned int __nocast flags)
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{
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int retries = 0;
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gfp_t lflags = kmem_flags_convert(flags);
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void *ptr;
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#ifdef DEBUG
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if (unlikely(!(flags & KM_LARGE) && (size > PAGE_SIZE))) {
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printk(KERN_WARNING "Large %s attempt, size=%ld\n",
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__FUNCTION__, (long)size);
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dump_stack();
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}
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#endif
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do {
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if (size < MAX_SLAB_SIZE || retries > MAX_VMALLOCS)
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ptr = kmalloc(size, lflags);
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else
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ptr = __vmalloc(size, lflags, PAGE_KERNEL);
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if (ptr || (flags & (KM_MAYFAIL|KM_NOSLEEP)))
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return ptr;
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if (!(++retries % 100))
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printk(KERN_ERR "XFS: possible memory allocation "
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"deadlock in %s (mode:0x%x)\n",
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__FUNCTION__, lflags);
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congestion_wait(WRITE, HZ/50);
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} while (1);
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}
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void *
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kmem_zalloc(size_t size, unsigned int __nocast flags)
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{
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void *ptr;
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ptr = kmem_alloc(size, flags);
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if (ptr)
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memset((char *)ptr, 0, (int)size);
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return ptr;
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}
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void *
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kmem_zalloc_greedy(size_t *size, size_t minsize, size_t maxsize,
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unsigned int __nocast flags)
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{
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void *ptr;
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size_t kmsize = maxsize;
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unsigned int kmflags = (flags & ~KM_SLEEP) | KM_NOSLEEP;
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while (!(ptr = kmem_zalloc(kmsize, kmflags))) {
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if ((kmsize <= minsize) && (flags & KM_NOSLEEP))
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break;
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if ((kmsize >>= 1) <= minsize) {
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kmsize = minsize;
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kmflags = flags;
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}
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}
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if (ptr)
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*size = kmsize;
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return ptr;
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}
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void
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kmem_free(void *ptr, size_t size)
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{
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if (((unsigned long)ptr < VMALLOC_START) ||
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((unsigned long)ptr >= VMALLOC_END)) {
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kfree(ptr);
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} else {
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vfree(ptr);
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}
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}
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void *
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kmem_realloc(void *ptr, size_t newsize, size_t oldsize,
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unsigned int __nocast flags)
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{
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void *new;
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new = kmem_alloc(newsize, flags);
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if (ptr) {
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if (new)
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memcpy(new, ptr,
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((oldsize < newsize) ? oldsize : newsize));
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kmem_free(ptr, oldsize);
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}
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return new;
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}
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void *
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kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags)
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{
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int retries = 0;
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gfp_t lflags = kmem_flags_convert(flags);
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void *ptr;
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do {
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ptr = kmem_cache_alloc(zone, lflags);
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if (ptr || (flags & (KM_MAYFAIL|KM_NOSLEEP)))
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return ptr;
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if (!(++retries % 100))
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printk(KERN_ERR "XFS: possible memory allocation "
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"deadlock in %s (mode:0x%x)\n",
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__FUNCTION__, lflags);
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congestion_wait(WRITE, HZ/50);
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} while (1);
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}
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void *
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kmem_zone_zalloc(kmem_zone_t *zone, unsigned int __nocast flags)
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{
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void *ptr;
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ptr = kmem_zone_alloc(zone, flags);
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if (ptr)
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memset((char *)ptr, 0, kmem_cache_size(zone));
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return ptr;
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}
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