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 6A31BC38159 for ; Thu, 19 Jan 2023 01:17:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230032AbjASBRI (ORCPT ); Wed, 18 Jan 2023 20:17:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229918AbjASBPa (ORCPT ); Wed, 18 Jan 2023 20:15:30 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2C1AD69232 for ; Wed, 18 Jan 2023 17:14:39 -0800 (PST) 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 dfw.source.kernel.org (Postfix) with ESMTPS id BD39C61B0F for ; Thu, 19 Jan 2023 01:14:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 23F80C433D2; Thu, 19 Jan 2023 01:14:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1674090878; bh=yG11CWAFiYi0+0gLoyTHLDN+lYFPNsksgSeJ7L669T0=; h=Date:To:From:Subject:From; b=gaMqiDzmnN1fOYfHd/4xkNoeo4Je2KFZ3m6f+4ff04kj/PiD9hxgGZroFkX6oa3Oi W7HZCJ051SZLqR43XGSrNaas3fpQl6QbUlVs/5xk7+iNktjFRBTzoRzh8tjpoRbVdc isDvF2X5nr9gjb+H47Zkaq/apI9/cIrTgmpLL/PQ= Date: Wed, 18 Jan 2023 17:14:37 -0800 To: mm-commits@vger.kernel.org, shuah@kernel.org, corbet@lwn.net, sj@kernel.org, akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-damon-sysfs-schemes-connect-filter-directory-and-filters-directory.patch removed from -mm tree Message-Id: <20230119011438.23F80C433D2@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The quilt patch titled Subject: mm/damon/sysfs-schemes: connect filter directory and filters directory has been removed from the -mm tree. Its filename was mm-damon-sysfs-schemes-connect-filter-directory-and-filters-directory.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: SeongJae Park Subject: mm/damon/sysfs-schemes: connect filter directory and filters directory Date: Mon, 5 Dec 2022 23:08:26 +0000 Implement 'nr_filters' file under 'filters' directory, which will be used to populate specific number of 'filter' directory under the directory, similar to other 'nr_*' files in DAMON sysfs interface. Link: https://lkml.kernel.org/r/20221205230830.144349-8-sj@kernel.org Signed-off-by: SeongJae Park Cc: Jonathan Corbet Cc: Shuah Khan Signed-off-by: Andrew Morton --- mm/damon/sysfs-schemes.c | 68 +++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) --- a/mm/damon/sysfs-schemes.c~mm-damon-sysfs-schemes-connect-filter-directory-and-filters-directory +++ a/mm/damon/sysfs-schemes.c @@ -269,6 +269,11 @@ struct damon_sysfs_scheme_filter { char *memcg_path; }; +static struct damon_sysfs_scheme_filter *damon_sysfs_scheme_filter_alloc(void) +{ + return kzalloc(sizeof(struct damon_sysfs_scheme_filter), GFP_KERNEL); +} + /* Should match with enum damos_filter_type */ static const char * const damon_sysfs_scheme_filter_type_strs[] = { "anon", @@ -392,6 +397,7 @@ static struct kobj_type damon_sysfs_sche struct damon_sysfs_scheme_filters { struct kobject kobj; + struct damon_sysfs_scheme_filter **filters_arr; int nr; }; @@ -401,6 +407,57 @@ damon_sysfs_scheme_filters_alloc(void) return kzalloc(sizeof(struct damon_sysfs_scheme_filters), GFP_KERNEL); } +static void damon_sysfs_scheme_filters_rm_dirs( + struct damon_sysfs_scheme_filters *filters) +{ + struct damon_sysfs_scheme_filter **filters_arr = filters->filters_arr; + int i; + + for (i = 0; i < filters->nr; i++) + kobject_put(&filters_arr[i]->kobj); + filters->nr = 0; + kfree(filters_arr); + filters->filters_arr = NULL; +} + +static int damon_sysfs_scheme_filters_add_dirs( + struct damon_sysfs_scheme_filters *filters, int nr_filters) +{ + struct damon_sysfs_scheme_filter **filters_arr, *filter; + int err, i; + + damon_sysfs_scheme_filters_rm_dirs(filters); + if (!nr_filters) + return 0; + + filters_arr = kmalloc_array(nr_filters, sizeof(*filters_arr), + GFP_KERNEL | __GFP_NOWARN); + if (!filters_arr) + return -ENOMEM; + filters->filters_arr = filters_arr; + + for (i = 0; i < nr_filters; i++) { + filter = damon_sysfs_scheme_filter_alloc(); + if (!filter) { + damon_sysfs_scheme_filters_rm_dirs(filters); + return -ENOMEM; + } + + err = kobject_init_and_add(&filter->kobj, + &damon_sysfs_scheme_filter_ktype, + &filters->kobj, "%d", i); + if (err) { + kobject_put(&filter->kobj); + damon_sysfs_scheme_filters_rm_dirs(filters); + return err; + } + + filters_arr[i] = filter; + filters->nr++; + } + return 0; +} + static ssize_t nr_filters_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { @@ -413,6 +470,7 @@ static ssize_t nr_filters_show(struct ko static ssize_t nr_filters_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count) { + struct damon_sysfs_scheme_filters *filters; int nr, err = kstrtoint(buf, 0, &nr); if (err) @@ -420,6 +478,15 @@ static ssize_t nr_filters_store(struct k if (nr < 0) return -EINVAL; + filters = container_of(kobj, struct damon_sysfs_scheme_filters, kobj); + + if (!mutex_trylock(&damon_sysfs_lock)) + return -EBUSY; + err = damon_sysfs_scheme_filters_add_dirs(filters, nr); + mutex_unlock(&damon_sysfs_lock); + if (err) + return err; + return count; } @@ -1166,6 +1233,7 @@ static void damon_sysfs_scheme_rm_dirs(s damon_sysfs_quotas_rm_dirs(scheme->quotas); kobject_put(&scheme->quotas->kobj); kobject_put(&scheme->watermarks->kobj); + damon_sysfs_scheme_filters_rm_dirs(scheme->filters); kobject_put(&scheme->filters->kobj); kobject_put(&scheme->stats->kobj); damon_sysfs_scheme_regions_rm_dirs(scheme->tried_regions); _ Patches currently in -mm which might be from sj@kernel.org are mm-damon-core-update-kernel-doc-comments-for-damos-action-supports-of-each-damon-operations-set.patch mm-damon-core-update-kernel-doc-comments-for-damos-filters-supports-of-each-damon-operations-set.patch docs-mm-damon-index-mention-damos-on-the-intro.patch docs-admin-guide-mm-damon-usage-update-damos-actions-filters-supports-of-each-damon-operations-set.patch docs-mm-damon-add-a-maintainer-profile-for-damon.patch maintainers-damon-link-maintainer-profile-git-trees-and-website.patch selftests-damon-sysfs-hide-expected-write-failures.patch selftests-damon-debugfs_rm_non_contexts-hide-expected-write-error-messages.patch scripts-spelling-add-a-few-more-typos.patch