On Mon, Oct 07, 2013 at 05:21:48PM +0400, Pavel Emelyanov wrote: > On 10/04/2013 11:02 PM, Naoya Horiguchi wrote: > > This flag shows that soft dirty bit is not enabled yet. > > You can enable it by "echo 4 > /proc/pid/clear_refs." > > The comment is not correct. Per-VMA soft-dirty flag means, that > VMA is "newly created" one and thus represents a new (dirty) are > in task's VM. Thanks for the correction. I changed the description. Naoya --- From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> Date: Fri, 4 Oct 2013 13:42:13 -0400 Subject: [PATCH] smaps: show VM_SOFTDIRTY flag in VmFlags line This flag shows that the VMA is "newly created" and thus represents "dirty" in the task's VM. You can clear it by "echo 4 > /proc/pid/clear_refs." Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> --- fs/proc/task_mmu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 7366e9d..c591928 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -561,6 +561,9 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma) [ilog2(VM_NONLINEAR)] = "nl", [ilog2(VM_ARCH_1)] = "ar", [ilog2(VM_DONTDUMP)] = "dd", +#ifdef CONFIG_MEM_SOFT_DIRTY + [ilog2(VM_SOFTDIRTY)] = "sd", +#endif [ilog2(VM_MIXEDMAP)] = "mm", [ilog2(VM_HUGEPAGE)] = "hg", [ilog2(VM_NOHUGEPAGE)] = "nh", -- 1.8.3.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>