diff options
| author | Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2013-11-12 15:07:49 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-13 12:09:07 +0900 |
| commit | ec8e41aec13005fed0dbee002fb8c99b4e001d50 (patch) | |
| tree | c14fee4cc32360055870d89b0256931a2c7e67bf | |
| parent | bfc4f9d5206739d0612782508a39e93b0793609d (diff) | |
/proc/pid/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@ah.jp.nec.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | Documentation/filesystems/proc.txt | 1 | ||||
| -rw-r--r-- | fs/proc/task_mmu.c | 3 |
2 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index 823c95faebd2..22d89aa37218 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -460,6 +460,7 @@ manner. The codes are the following: nl - non-linear mapping ar - architecture specific flag dd - do not include area into core dump + sd - soft-dirty flag mm - mixed map area hg - huge page advise flag nh - no-huge page advise flag diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 9f1369fe0afb..abbe825d20ff 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", |