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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-04-20 16:20:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-04-20 17:29:13 -0700 |
| commit | a46ef99d80817a167477ed1c8b4d90ee0c2e726f (patch) | |
| tree | 3d8c980c627e8b9c009dbf63628a9be8b8d1069f /arch/sparc/kernel | |
| parent | e4eb1ff61b323d6141614e5458a1f53c7046ff8e (diff) | |
| download | lwn-a46ef99d80817a167477ed1c8b4d90ee0c2e726f.tar.gz lwn-a46ef99d80817a167477ed1c8b4d90ee0c2e726f.zip | |
VM: add "vm_munmap()" helper function
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>
Diffstat (limited to 'arch/sparc/kernel')
| -rw-r--r-- | arch/sparc/kernel/sys_sparc_64.c | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index 232df9949530..022e57aadf5d 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -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(¤t->mm->mmap_sem); - ret = do_munmap(current->mm, addr, len); - up_write(¤t->mm->mmap_sem); - return ret; + return vm_munmap(current->mm, addr, len); } extern unsigned long do_mremap(unsigned long addr, |