From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE923C433FE for ; Fri, 25 Mar 2022 22:41:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233935AbiCYWn2 (ORCPT ); Fri, 25 Mar 2022 18:43:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50398 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233919AbiCYWnT (ORCPT ); Fri, 25 Mar 2022 18:43:19 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BBE8F209A5A for ; Fri, 25 Mar 2022 15:41:43 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 59FC8B82A36 for ; Fri, 25 Mar 2022 22:41:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id F1AB6C340F0; Fri, 25 Mar 2022 22:41:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1648248103; bh=Jo9VI/p0JlRpcoRK6zAlHpwKRNo3E7q4RQDaLwh2040=; h=Date:To:From:Subject:From; b=M7lyufonq2t0sZbnhWm10xEVk2v/5nPS/Pq2cv2ocmD88tfXaODbd4ilaw0fVhb0q YGTdGaULJx/LFdgeqfj/ayILrvaUE0uwncVmKS9q+Rd59T0ZT9D9QePXH7PuSJVNvV sH8mPcB+MKqLf0zdE7TmXTkw8F61AejLX1IB0hYA= Date: Fri, 25 Mar 2022 15:41:42 -0700 To: mm-commits@vger.kernel.org, zhaochongxi2019@email.szu.edu.cn, zhangyinan2019@email.szu.edu.cn, weizhenliang@huawei.com, sfr@canb.auug.org.au, seanga2@gmail.com, hanshenghong2019@email.szu.edu.cn, caoyixuan2019@email.szu.edu.cn, yejiajian2018@email.szu.edu.cn, akpm@linux-foundation.org From: Andrew Morton Subject: [merged] tools-vm-page_owner_sort-support-for-sorting-by-task-command-name.patch removed from -mm tree Message-Id: <20220325224142.F1AB6C340F0@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: tools/vm/page_owner_sort: support for sorting by task command name has been removed from the -mm tree. Its filename was tools-vm-page_owner_sort-support-for-sorting-by-task-command-name.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Jiajian Ye Subject: tools/vm/page_owner_sort: support for sorting by task command name When viewing page owner information, we may also need to the block to be sorted by task command name. Therefore, the following adjustments are made: 1. Add a member variable to record task command name of block. 2. Add a new -n option to sort the information of blocks by task command name. 3. Add -n option explanation in the document. Link: https://lkml.kernel.org/r/20220306030640.43054-2-yejiajian2018@email.szu.edu.cn Signed-off-by: Jiajian Ye Cc: Stephen Rothwell Cc: Sean Anderson Cc: Yixuan Cao Cc: Zhenliang Wei Cc: Cc: Cc: Signed-off-by: Andrew Morton --- Documentation/vm/page_owner.rst | 1 tools/vm/page_owner_sort.c | 35 +++++++++++++++++++++++++++++- 2 files changed, 35 insertions(+), 1 deletion(-) --- a/Documentation/vm/page_owner.rst~tools-vm-page_owner_sort-support-for-sorting-by-task-command-name +++ a/Documentation/vm/page_owner.rst @@ -117,6 +117,7 @@ Usage -m Sort by total memory. -p Sort by pid. -P Sort by tgid. + -n Sort by task command name. -r Sort by memory release time. -s Sort by stack trace. -t Sort by times (default). --- a/tools/vm/page_owner_sort.c~tools-vm-page_owner_sort-support-for-sorting-by-task-command-name +++ a/tools/vm/page_owner_sort.c @@ -24,6 +24,7 @@ struct block_list { char *txt; + char *comm; // task command name char *stacktrace; __u64 ts_nsec; __u64 free_ts_nsec; @@ -37,6 +38,7 @@ struct block_list { static regex_t order_pattern; static regex_t pid_pattern; static regex_t tgid_pattern; +static regex_t comm_pattern; static regex_t ts_nsec_pattern; static regex_t free_ts_nsec_pattern; static struct block_list *list; @@ -102,6 +104,13 @@ static int compare_tgid(const void *p1, return l1->tgid - l2->tgid; } +static int compare_comm(const void *p1, const void *p2) +{ + const struct block_list *l1 = p1, *l2 = p2; + + return strcmp(l1->comm, l2->comm); +} + static int compare_ts(const void *p1, const void *p2) { const struct block_list *l1 = p1, *l2 = p2; @@ -145,6 +154,7 @@ static void check_regcomp(regex_t *patte } # define FIELD_BUFF 25 +# define TASK_COMM_LEN 16 static int get_page_num(char *buf) { @@ -233,6 +243,22 @@ static __u64 get_free_ts_nsec(char *buf) return free_ts_nsec; } +static char *get_comm(char *buf) +{ + char *comm_str = malloc(TASK_COMM_LEN); + + memset(comm_str, 0, TASK_COMM_LEN); + + search_pattern(&comm_pattern, comm_str, buf); + errno = 0; + if (errno != 0) { + printf("wrong comm in follow buf:\n%s\n", buf); + return NULL; + } + + return comm_str; +} + static void add_list(char *buf, int len) { if (list_size != 0 && @@ -266,6 +292,7 @@ static void add_list(char *buf, int len) list[list_size].stacktrace++; list[list_size].pid = get_pid(buf); list[list_size].tgid = get_tgid(buf); + list[list_size].comm = get_comm(buf); list[list_size].ts_nsec = get_ts_nsec(buf); list_size++; if (list_size % 1000 == 0) { @@ -284,6 +311,7 @@ static void usage(void) "-t Sort by times (default).\n" "-p Sort by pid.\n" "-P Sort by tgid.\n" + "-n Sort by task command name.\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" @@ -300,7 +328,7 @@ int main(int argc, char **argv) struct stat st; int opt; - while ((opt = getopt(argc, argv, "acfmprstP")) != -1) + while ((opt = getopt(argc, argv, "acfmnprstP")) != -1) switch (opt) { case 'a': cmp = compare_ts; @@ -329,6 +357,9 @@ int main(int argc, char **argv) case 'P': cmp = compare_tgid; break; + case 'n': + cmp = compare_comm; + break; default: usage(); exit(1); @@ -350,6 +381,7 @@ int main(int argc, char **argv) check_regcomp(&order_pattern, "order\\s*([0-9]*),"); check_regcomp(&pid_pattern, "pid\\s*([0-9]*),"); check_regcomp(&tgid_pattern, "tgid\\s*([0-9]*) "); + check_regcomp(&comm_pattern, "tgid\\s*[0-9]*\\s*\\((.*)\\),\\s*ts"); check_regcomp(&ts_nsec_pattern, "ts\\s*([0-9]*)\\s*ns,"); check_regcomp(&free_ts_nsec_pattern, "free_ts\\s*([0-9]*)\\s*ns"); fstat(fileno(fin), &st); @@ -408,6 +440,7 @@ int main(int argc, char **argv) regfree(&order_pattern); regfree(&pid_pattern); regfree(&tgid_pattern); + regfree(&comm_pattern); regfree(&ts_nsec_pattern); regfree(&free_ts_nsec_pattern); return 0; _ Patches currently in -mm which might be from yejiajian2018@email.szu.edu.cn are