The patch titled Subject: mm/damon/sysfs: use the wrapper directly to check if the kdamond is running has been added to the -mm mm-unstable branch. Its filename is mm-damon-sysfs-use-the-wrapper-directly-to-check-if-the-kdamond-is-running.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-sysfs-use-the-wrapper-directly-to-check-if-the-kdamond-is-running.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Kaixu Xia <kaixuxia@xxxxxxxxxxx> Subject: mm/damon/sysfs: use the wrapper directly to check if the kdamond is running Date: Mon, 12 Sep 2022 23:11:53 +0800 We can use the 'damon_sysfs_kdamond_running()' wrapper directly to check if the kdamond is running in 'damon_sysfs_turn_damon_on()'. Link: https://lkml.kernel.org/r/1662995513-24489-1-git-send-email-kaixuxia@xxxxxxxxxxx Signed-off-by: Kaixu Xia <kaixuxia@xxxxxxxxxxx> Cc: SeongJae Park <sj@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/damon/sysfs.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/damon/sysfs.c~mm-damon-sysfs-use-the-wrapper-directly-to-check-if-the-kdamond-is-running +++ a/mm/damon/sysfs.c @@ -2465,8 +2465,7 @@ static int damon_sysfs_turn_damon_on(str struct damon_ctx *ctx; int err; - if (kdamond->damon_ctx && - damon_sysfs_ctx_running(kdamond->damon_ctx)) + if (damon_sysfs_kdamond_running(kdamond)) return -EBUSY; if (damon_sysfs_cmd_request.kdamond == kdamond) return -EBUSY; _ Patches currently in -mm which might be from kaixuxia@xxxxxxxxxxx are mm-damon-sysfs-simplify-the-judgement-whether-kdamonds-are-busy.patch mm-damon-core-iterate-the-regions-list-from-current-point-in-damon_set_regions.patch mm-damon-vaddr-add-a-comment-for-default-case-in-damon_va_apply_scheme.patch mm-damon-sysfs-use-the-wrapper-directly-to-check-if-the-kdamond-is-running.patch