Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.19 10/10] tools/vm/page-types: remove dependency on opt_file for idle page tracking | Date | Tue, 28 Sep 2021 01:57:16 -0400 |
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From: Changbin Du <changbin.du@gmail.com>
[ Upstream commit ebaeab2fe87987cef28eb5ab174c42cd28594387 ]
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 ...
Link: https://lkml.kernel.org/r/20210917032826.10669-1-changbin.du@gmail.com Signed-off-by: Changbin Du <changbin.du@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- tools/vm/page-types.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c index 1ff3a6c0367b..89063b967b6b 100644 --- a/tools/vm/page-types.c +++ b/tools/vm/page-types.c @@ -1341,7 +1341,7 @@ 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) -- 2.33.0
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