mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-18 10:13:57 +08:00
[PATCH] mm: remove implied vm_ops check
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 <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
parent
d44ed4f868
commit
4944e76d81
@ -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);
|
||||
|
Loading…
Reference in New Issue
Block a user