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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 ... 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>
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@ -1331,7 +1331,7 @@ int main(int argc, char *argv[])
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if (opt_list && opt_list_mapcnt)
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kpagecount_fd = checked_open(PROC_KPAGECOUNT, O_RDONLY);
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if (opt_mark_idle && opt_file)
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if (opt_mark_idle)
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page_idle_fd = checked_open(SYS_KERNEL_MM_PAGE_IDLE, O_RDWR);
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if (opt_list && opt_pid)
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