From: Shenghong Han <hanshenghong2019@xxxxxxxxxxxxxxxx> Subject: tools/vm/page_owner_sort.c: two trivial fixes 1) There is an unused variable. It's better to delete it. 2) One case is missing in the usage(). Link: https://lkml.kernel.org/r/20211213164518.2461-1-hanshenghong2019@xxxxxxxxxxxxxxxx Signed-off-by: Shenghong Han <hanshenghong2019@xxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- tools/vm/page_owner_sort.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) --- a/tools/vm/page_owner_sort.c~tools-vm-page_owner_sortc-two-trivial-fixes +++ a/tools/vm/page_owner_sort.c @@ -41,8 +41,6 @@ static struct block_list *list; static int list_size; static int max_size; -struct block_list *block_head; - int read_block(char *buf, int buf_size, FILE *fin) { char *curr = buf, *const buf_end = buf + buf_size; @@ -249,7 +247,8 @@ static void usage(void) "-p Sort by pid.\n" "-a Sort by memory allocate time.\n" "-r Sort by memory release time.\n" - "-c cull by comparing stacktrace instead of total block.\n" + "-c Cull by comparing stacktrace instead of total block.\n" + "-f Filter out the information of blocks whose memory has not been released.\n" ); } _
