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VM: add "vm_munmap()" helper function

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Like the vm_brk() function, this is the same as "do_munmap()", except it
does the VM locking for the caller.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds
2012-04-20 16:20:01 -07:00
parent e4eb1ff61b
commit a46ef99d80
8 changed files with 28 additions and 36 deletions
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7
arch/sparc/kernel/sys_sparc_64.c
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@@ -566,15 +566,10 @@ out:
SYSCALL_DEFINE2(64_munmap, unsigned long, addr, size_t, len)
{
long ret;
if (invalid_64bit_range(addr, len))
return -EINVAL;
down_write(&current->mm->mmap_sem);
ret = do_munmap(current->mm, addr, len);
up_write(&current->mm->mmap_sem);
return ret;
return vm_munmap(current->mm, addr, len);
}
extern unsigned long do_mremap(unsigned long addr,