diff options
| author | Hyeongtak Ji <hyeongtak.ji@sk.com> | 2024-06-14 12:00:05 +0900 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-07-03 19:30:12 -0700 |
| commit | e36287c6e12d00f2087dc0c4899d8a9c54e22e1c (patch) | |
| tree | 7d186526aa01534b550195c1507e9df1d1ba71dc /include/linux/damon.h | |
| parent | 8f75267d22bdf8e3baf70f2fa7092d8c2f58da71 (diff) | |
mm/damon/sysfs-schemes: add target_nid on sysfs-schemes
This patch adds target_nid under
/sys/kernel/mm/damon/admin/kdamonds/<N>/contexts/<N>/schemes/<N>/
The 'target_nid' can be used as the destination node for DAMOS actions
such as DAMOS_MIGRATE_{HOT,COLD} in the follow up patches.
[sj@kernel.org: document target_nid file]
Link: https://lkml.kernel.org/r/20240618213630.84846-3-sj@kernel.org
Link: https://lkml.kernel.org/r/20240614030010.751-4-honggyu.kim@sk.com
Signed-off-by: Hyeongtak Ji <hyeongtak.ji@sk.com>
Signed-off-by: Honggyu Kim <honggyu.kim@sk.com>
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Gregory Price <gregory.price@memverge.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux/damon.h')
| -rw-r--r-- | include/linux/damon.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/damon.h b/include/linux/damon.h index f7da65e1ac04..21d6b69a015c 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -374,6 +374,7 @@ struct damos_access_pattern { * @apply_interval_us: The time between applying the @action. * @quota: Control the aggressiveness of this scheme. * @wmarks: Watermarks for automated (in)activation of this scheme. + * @target_nid: Destination node if @action is "migrate_{hot,cold}". * @filters: Additional set of &struct damos_filter for &action. * @stat: Statistics of this scheme. * @list: List head for siblings. @@ -389,6 +390,10 @@ struct damos_access_pattern { * monitoring context are inactive, DAMON stops monitoring either, and just * repeatedly checks the watermarks. * + * @target_nid is used to set the migration target node for migrate_hot or + * migrate_cold actions, which means it's only meaningful when @action is either + * "migrate_hot" or "migrate_cold". + * * Before applying the &action to a memory region, &struct damon_operations * implementation could check pages of the region and skip &action to respect * &filters @@ -410,6 +415,9 @@ struct damos { /* public: */ struct damos_quota quota; struct damos_watermarks wmarks; + union { + int target_nid; + }; struct list_head filters; struct damos_stat stat; struct list_head list; @@ -726,7 +734,8 @@ struct damos *damon_new_scheme(struct damos_access_pattern *pattern, enum damos_action action, unsigned long apply_interval_us, struct damos_quota *quota, - struct damos_watermarks *wmarks); + struct damos_watermarks *wmarks, + int target_nid); void damon_add_scheme(struct damon_ctx *ctx, struct damos *s); void damon_destroy_scheme(struct damos *s); |