The patch titled
Subject: tools/vm/page-types: remove dependency on opt_file for idle page tracking
has been added to the -mm tree. Its filename is
tools-vm-page-types-remove-dependency-on-opt_file-for-idle-page-tracking.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/tools-vm-page-types-remove-dependency-on-opt_file-for-idle-page-tracking.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/tools-vm-page-types-remove-dependency-on-opt_file-for-idle-page-tracking.patch
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------------------------------------------------------
From: Changbin Du <changbin.du@xxxxxxxxx>
Subject: tools/vm/page-types: remove dependency on opt_file for idle page tracking
Idle page tracking can also be used for process address space, not only
file mappings.
Without this change, using with '-i' option for process address space
encounters below errors reported.
$ sudo ./page-types -p $(pidof bash) -i
mark page idle: Bad file descriptor
mark page idle: Bad file descriptor
mark page idle: Bad file descriptor
mark page idle: Bad file descriptor
mark page idle: Bad file descriptor
mark page idle: Bad file descriptor
....
Link: https://lkml.kernel.org/r/20210917032826.10669-1-changbin.du@xxxxxxxxx
Signed-off-by: Changbin Du <changbin.du@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/vm/page-types.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/tools/vm/page-types.c~tools-vm-page-types-remove-dependency-on-opt_file-for-idle-page-tracking
+++ a/tools/vm/page-types.c
@@ -1331,7 +1331,7 @@ int main(int argc, char *argv[])
if (opt_list && opt_list_mapcnt)
kpagecount_fd = checked_open(PROC_KPAGECOUNT, O_RDONLY);
- if (opt_mark_idle && opt_file)
+ if (opt_mark_idle)
page_idle_fd = checked_open(SYS_KERNEL_MM_PAGE_IDLE, O_RDWR);
if (opt_list && opt_pid)
_
Patches currently in -mm which might be from changbin.du@xxxxxxxxx are
tools-vm-page-types-remove-dependency-on-opt_file-for-idle-page-tracking.patch
