The patch titled
mmap: remove unnecessary code
has been added to the -mm tree. Its filename is
mmap-remove-unnecessary-code.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: mmap: remove unnecessary code
From: Huang Shijie <shijie8@xxxxxxxxx>
If (flags & MAP_LOCKED) is true, it means vm_flags has already contained
the bit VM_LOCKED which is set by calc_vm_flag_bits().
So there is no need to reset it again, just remove it.
Signed-off-by: Huang Shijie <shijie8@xxxxxxxxx>
Acked-by: Hugh Dickins <hugh.dickins@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mmap.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff -puN mm/mmap.c~mmap-remove-unnecessary-code mm/mmap.c
--- a/mm/mmap.c~mmap-remove-unnecessary-code
+++ a/mm/mmap.c
@@ -982,11 +982,9 @@ unsigned long do_mmap_pgoff(struct file
vm_flags = calc_vm_prot_bits(prot) | calc_vm_flag_bits(flags) |
mm->def_flags | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC;
- if (flags & MAP_LOCKED) {
+ if (flags & MAP_LOCKED)
if (!can_do_mlock())
return -EPERM;
- vm_flags |= VM_LOCKED;
- }
/* mlock MCL_FUTURE? */
if (vm_flags & VM_LOCKED) {
_
Patches currently in -mm which might be from shijie8@xxxxxxxxx are
mmap-remove-unnecessary-code.patch
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