From: Yinan Zhang <zhangyinan2019@xxxxxxxxxxxxxxxx> Subject: tools/vm/page_owner_sort.c: remove -c option -c option is used to cull by stacktrace. Now, --cull option has been Added in page_owner_sort.c. Culling by stacktrace is one of the function of "--cull". No need to set an extra parameter. So remove -c option. Remove parsing of -c when parse parameter and remove "-c" from usage. This work is coauthored by Shenghong Han Yixuan Cao Chongxi Zhao Jiajian Ye Yuhong Feng Yongqiang Liu Link: https://lkml.kernel.org/r/20220326085920.1470081-1-zhangyinan2019@xxxxxxxxxxxxxxxx Signed-off-by: Yinan Zhang <zhangyinan2019@xxxxxxxxxxxxxxxx> Cc: Chongxi Zhao <zhaochongxi2019@xxxxxxxxxxxxxxxx> Cc: Georgi Djakov <georgi.djakov@xxxxxxxxxx> Cc: Jiajian Ye <yejiajian2018@xxxxxxxxxxxxxxxx> Cc: Jonathan Corbet <corbet@xxxxxxx> Cc: Sean Anderson <seanga2@xxxxxxxxx> Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Cc: Tang Bin <tangbin@xxxxxxxxxxxxxxxxxxxx> Cc: Yixuan Cao <caoyixuan2019@xxxxxxxxxxxxxxxx> Cc: Yongqiang Liu <liuyongqiang13@xxxxxxxxxx> Cc: Yuhong Feng <yuhongf@xxxxxxxxxx> Cc: Zhenliang Wei <weizhenliang@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- tools/vm/page_owner_sort.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) --- a/tools/vm/page_owner_sort.c~tools-vm-page_owner_sortc-remove-c-option +++ a/tools/vm/page_owner_sort.c @@ -441,7 +441,6 @@ static void usage(void) "-n\t\tSort by task command name.\n" "-a\t\tSort by memory allocate time.\n" "-r\t\tSort by memory release time.\n" - "-c\t\tCull by comparing stacktrace instead of total block.\n" "-f\t\tFilter out the information of blocks whose memory has been released.\n" "--pid <PID>\tSelect by pid. This selects the information of blocks whose process ID number equals to <PID>.\n" "--tgid <TGID>\tSelect by tgid. This selects the information of blocks whose Thread Group ID number equals to <TGID>.\n" @@ -466,14 +465,11 @@ int main(int argc, char **argv) { 0, 0, 0, 0}, }; - while ((opt = getopt_long(argc, argv, "acfmnprstP", longopts, NULL)) != -1) + while ((opt = getopt_long(argc, argv, "afmnprstP", longopts, NULL)) != -1) switch (opt) { case 'a': cmp = compare_ts; break; - case 'c': - cull = cull | CULL_STACKTRACE; - break; case 'f': filter = filter | FILTER_UNRELEASE; break; _