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Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, vm86: fix preemption bug
  x86, olpc: fix model detection without OFW
  x86, hpet: fix for LS21 + HPET = boot hang
  x86: CPA avoid repeated lazy mmu flush
  x86: warn if arch_flush_lazy_mmu_cpu is called in preemptible context
  x86/paravirt: make arch_flush_lazy_mmu/cpu disable preemption
  x86, pat: fix warn_on_once() while mapping 0-1MB range with /dev/mem
  x86/cpa: make sure cpa is safe to call in lazy mmu mode
  x86, ptrace, mm: fix double-free on race
This commit is contained in:
Linus Torvalds
2009-02-17 14:27:39 -08:00
parent 8ce9a75a30 be716615fe
commit 35010334aa
12 changed files with 116 additions and 83 deletions
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7
mm/mlock.c
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@@ -660,7 +660,7 @@ void *alloc_locked_buffer(size_t size)
return buffer;
}
void free_locked_buffer(void *buffer, size_t size)
void release_locked_buffer(void *buffer, size_t size)
{
unsigned long pgsz = PAGE_ALIGN(size) >> PAGE_SHIFT;
@@ -670,6 +670,11 @@ void free_locked_buffer(void *buffer, size_t size)
current->mm->locked_vm -= pgsz;
up_write(&current->mm->mmap_sem);
}
void free_locked_buffer(void *buffer, size_t size)
{
release_locked_buffer(buffer, size);
kfree(buffer);
}