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
---
fs/proc/task_mmu.c |3 ---
1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/fs/proc/task_mmu.c b/fs/proc/task
On Wed, Dec 16, 2015 at 06:26:32PM +0100, Oleg Nesterov wrote:
> clear_soft_dirty_pmd() is called by clear_refs_write(CLEAR_REFS_SOFT_DIRTY),
> VM_SOFTDIRTY was already cleared before walk_page_range().
Not only that, We shouldn't [generally] change vm_flags without exclusive
mmap_sem and we have
On Wed, Dec 16, 2015 at 06:26:32PM +0100, Oleg Nesterov wrote:
> 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
Acked-by: Cyrill Gorcunov
Thank you!
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On Wed, 16 Dec 2015, Oleg Nesterov wrote:
> 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
Acked-by: David Rientjes
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