The patch titled
Subject: mm: /proc/pid/clear_refs: no need to clear VM_SOFTDIRTY in clear_soft_dirty_pmd()
has been added to the -mm tree. Its filename is
mm-proc-pid-clear_refs-no-need-to-clear-vm_softdirty-in-clear_soft_dirty_pmd.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-proc-pid-clear_refs-no-need-to-clear-vm_softdirty-in-clear_soft_dirty_pmd.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-proc-pid-clear_refs-no-need-to-clear-vm_softdirty-in-clear_soft_dirty_pmd.patch
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------------------------------------------------------
From: Oleg Nesterov <oleg@xxxxxxxxxx>
Subject: mm: /proc/pid/clear_refs: no need to clear VM_SOFTDIRTY in clear_soft_dirty_pmd()
clear_soft_dirty_pmd() is called by clear_refs_write(CLEAR_REFS_SOFT_DIRTY),
VM_SOFTDIRTY was already cleared before walk_page_range().
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Acked-by: Cyrill Gorcunov <gorcunov@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/task_mmu.c | 3 ---
1 file changed, 3 deletions(-)
diff -puN fs/proc/task_mmu.c~mm-proc-pid-clear_refs-no-need-to-clear-vm_softdirty-in-clear_soft_dirty_pmd fs/proc/task_mmu.c
--- a/fs/proc/task_mmu.c~mm-proc-pid-clear_refs-no-need-to-clear-vm_softdirty-in-clear_soft_dirty_pmd
+++ a/fs/proc/task_mmu.c
@@ -881,9 +881,6 @@ static inline void clear_soft_dirty_pmd(
pmd = pmd_wrprotect(pmd);
pmd = pmd_clear_soft_dirty(pmd);
- if (vma->vm_flags & VM_SOFTDIRTY)
- vma->vm_flags &= ~VM_SOFTDIRTY;
-
set_pmd_at(vma->vm_mm, addr, pmdp, pmd);
}
#else
_
Patches currently in -mm which might be from oleg@xxxxxxxxxx are
mm-proc-pid-clear_refs-no-need-to-clear-vm_softdirty-in-clear_soft_dirty_pmd.patch
ptrace-make-wait_on_bitjobctl_trapping_bit-in-ptrace_attach-killable.patch
ptrace-task_stopped_codeptrace-=-true-cant-see-task_stopped-task.patch
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