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[PATCH] mm: remove implied vm_ops check

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If !vma->vm-ops we already BUG above, so retesting it is useless.  The
compiler cannot optimize this because BUG is a macro and is not thus marked
noreturn; that should possibly be fixed.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Paolo 'Blaisorblade' Giarrusso 2005-09-03 15:54:56 -07:00 • committed by Linus Torvalds
commit 4944e76d81
1 changed files with 1 additions and 1 deletions
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mm/memory.c
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@ -1955,7 +1955,7 @@ static int do_file_page(struct mm_struct * mm, struct vm_area_struct * vma,
* Fall back to the linear mapping if the fs does not support
* ->populate:
*/
if (!vma->vm_ops || !vma->vm_ops->populate ||
if (!vma->vm_ops->populate ||
(write_access && !(vma->vm_flags & VM_SHARED))) {
pte_clear(mm, address, pte);
return do_no_page(mm, vma, address, write_access, pte, pmd);