Messages in this thread Patch in this message | | | From | Yang Shi <> | Subject | [RFC PATCH 8/8] x86: vma: pass atomic parameter to do_munmap() | Date | Wed, 21 Mar 2018 05:31:26 +0800 |
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It sounds unnecessary to release mmap_sem in the middle of unmmaping vdso map.
This is API change only.
Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org --- arch/x86/entry/vdso/vma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c index 5b8b556..6359ae5 100644 --- a/arch/x86/entry/vdso/vma.c +++ b/arch/x86/entry/vdso/vma.c @@ -192,7 +192,7 @@ static int map_vdso(const struct vdso_image *image, unsigned long addr) if (IS_ERR(vma)) { ret = PTR_ERR(vma); - do_munmap(mm, text_start, image->size, NULL); + do_munmap(mm, text_start, image->size, NULL, true); } else { current->mm->context.vdso = (void __user *)text_start; current->mm->context.vdso_image = image; -- 1.8.3.1
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