From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 450D731AABC for ; Wed, 7 Oct 2026 00:51:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791334286; cv=none; b=QN8vt7gTcWuxek0gnlhoyrxDgnzZEaPdUhUNqjHxGbFYFjiH/zARiFL98vAUz0xJvB9Gk7cFEMW2q59Ayvziq5BQxr5gAuLH2ThFAh5r4sZA1OWZ64Hnkdtp+mP09Y6noXs+ouPY4O1+3F41OraknJuomJvwuJuFuV6OMjB9mYI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791334286; c=relaxed/simple; bh=19nx5WJWl01lEzWliI23AlSgSknIJn7hUpLOdP2w6A8=; h=Date:To:From:Subject:Message-Id; b=a1p4lClY02AvBm1r0dNtXeVVbqVkqXYtP2bG6j1IofZ3aeSYqQPzuKmv/OoIjDv86nhrriyH7fCG98t6RNpNPvQ94BsKHsn0z8+VQft5y48jIR+qDnXXV/elXf+oY1Pi5WuPF3e5jOLXTUigsBpfcrXQP9d0X6sqMIThdhjgKSc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=NuHgjDKu; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="NuHgjDKu" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1C4001F0089B; Wed, 7 Oct 2026 00:51:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=korg; t=1791334285; bh=BafpuDyWRcrwAkh7yyv+TJ5RnQ7A2XyMYxuIWSNvP24=; h=Date:To:From:Subject; b=NuHgjDKui9Kv2o7gT5LfCd81awp7rqGkIf+F7Sn2vPzX89Rxs7YVIPc0X3ckiq4Wt 7bdQ+HLs2u2vPQiKt7WNYy3b/4fzyMkt2dqRZjGJXyvaK6dvQw/4yr9meF9Mt0sJqH S9CrBFmUE2Onbfz1jJy5rMncsgVnAQAstNUt273c= Date: Tue, 06 Oct 2026 17:51:24 -0700 To: mm-commits@vger.kernel.org,zhaozhengzhuo@uniontech.com,zenghui.yu@linux.dev,sj@kernel.org,shuah@kernel.org,liyouhong@kylinos.cn,jaeyeon.lee.dev@gmail.com,harimishal1@gmail.com,gregkh@linuxfoundation.org,lienze@kylinos.cn,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-damon-core-introduce-damon_set_target_pid.patch removed from -mm tree Message-Id: <20261007005125.1C4001F0089B@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/damon/core: introduce damon_set_target_pid() has been removed from the -mm tree. Its filename was mm-damon-core-introduce-damon_set_target_pid.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: Enze Li Subject: mm/damon/core: introduce damon_set_target_pid() Date: Mon, 31 Aug 2026 07:26:04 -0700 The logic that finds the struct pid for a given pid number and assigns it to a damon_target is duplicated in multiple places. Including damon_sysfs_add_target() of mm/damon/sysfs.c and the start functions of the two sample modules, samples/damon/wsse.c and samples/damon/prcl.c. Add a function that does the work, and replace the duplicated code in the places with calls to the function. Link: https://lore.kernel.org/20260831142611.77572-3-sj@kernel.org Signed-off-by: Enze Li Signed-off-by: SJ Park Signed-off-by: Andrew Morton Reviewed-by: SJ Park Cc: Greg Kroah-Hartman Cc: Hari Mishal Cc: Jaeyeon Lee Cc: Li Youhong Cc: Shuah Khan Cc: "Zenghui Yu (Huawei)" Cc: zhaozhengzhuo --- include/linux/damon.h | 1 + mm/damon/core.c | 12 ++++++++++++ mm/damon/sysfs.c | 6 ++---- samples/damon/prcl.c | 5 +---- samples/damon/wsse.c | 5 +---- 5 files changed, 17 insertions(+), 12 deletions(-) --- a/include/linux/damon.h~mm-damon-core-introduce-damon_set_target_pid +++ a/include/linux/damon.h @@ -1057,6 +1057,7 @@ int damos_commit_quota_goals(struct damo struct damon_target *damon_new_target(void); void damon_add_target(struct damon_ctx *ctx, struct damon_target *t); +int damon_set_target_pid(struct damon_target *t, int pid); void damon_free_target(struct damon_target *t); void damon_destroy_target(struct damon_target *t, struct damon_ctx *ctx); unsigned int damon_nr_regions(struct damon_target *t); --- a/mm/damon/core.c~mm-damon-core-introduce-damon_set_target_pid +++ a/mm/damon/core.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -795,6 +796,17 @@ void damon_add_target(struct damon_ctx * list_add_tail(&t->list, &ctx->adaptive_targets); } +/* + * Assign the struct pid of the given pid number to the given target. + */ +int damon_set_target_pid(struct damon_target *t, int pid) +{ + t->pid = find_get_pid(pid); + if (!t->pid) + return -EINVAL; + return 0; +} + static void damon_del_target(struct damon_target *t) { list_del(&t->list); --- a/mm/damon/sysfs.c~mm-damon-core-introduce-damon_set_target_pid +++ a/mm/damon/sysfs.c @@ -3,7 +3,6 @@ * DAMON sysfs Interface */ -#include #include #include @@ -2035,9 +2034,8 @@ static int damon_sysfs_add_target(struct return -ENOMEM; damon_add_target(ctx, t); if (damon_target_has_pid(ctx)) { - t->pid = find_get_pid(sys_target->pid); - if (!t->pid) - /* caller will destroy targets */ + /* caller will destroy targets */ + if (damon_set_target_pid(t, sys_target->pid)) return -EINVAL; } t->obsolete = sys_target->obsolete; --- a/samples/damon/prcl.c~mm-damon-core-introduce-damon_set_target_pid +++ a/samples/damon/prcl.c @@ -32,7 +32,6 @@ module_param_cb(enabled, &enabled_param_ MODULE_PARM_DESC(enabled, "Enable or disable DAMON_SAMPLE_PRCL"); static struct damon_ctx *ctx; -static struct pid *target_pidp; static int damon_sample_prcl_repeat_call_fn(void *data) { @@ -79,12 +78,10 @@ static int damon_sample_prcl_start(void) return -ENOMEM; } damon_add_target(ctx, target); - target_pidp = find_get_pid(target_pid); - if (!target_pidp) { + if (damon_set_target_pid(target, target_pid)) { damon_destroy_ctx(ctx); return -EINVAL; } - target->pid = target_pidp; scheme = damon_new_scheme( &(struct damos_access_pattern) { --- a/samples/damon/wsse.c~mm-damon-core-introduce-damon_set_target_pid +++ a/samples/damon/wsse.c @@ -33,7 +33,6 @@ module_param_cb(enabled, &enabled_param_ MODULE_PARM_DESC(enabled, "Enable or disable DAMON_SAMPLE_WSSE"); static struct damon_ctx *ctx; -static struct pid *target_pidp; static int damon_sample_wsse_repeat_call_fn(void *data) { @@ -79,12 +78,10 @@ static int damon_sample_wsse_start(void) return -ENOMEM; } damon_add_target(ctx, target); - target_pidp = find_get_pid(target_pid); - if (!target_pidp) { + if (damon_set_target_pid(target, target_pid)) { damon_destroy_ctx(ctx); return -EINVAL; } - target->pid = target_pidp; err = damon_start(&ctx, 1, true); if (err) { _ Patches currently in -mm which might be from lienze@kylinos.cn are maintainers-cover-all-hugetlb-headers-under-hugetlb-subsystem.patch mm-hugetlb_cgroup-add-trailing-endif-comment-for-include-guard.patch docs-hugetlbpagerst-fix-typo-in-per-node-attribute-description.patch