The patch titled Subject: memcg: remove PCG_FILE_MAPPED has been removed from the -mm tree. Its filename was memcg-remove-pcg_file_mapped.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Subject: memcg: remove PCG_FILE_MAPPED With the new lock scheme for updating memcg's page stat, we don't need a flag PCG_FILE_MAPPED which was duplicated information of page_mapped(). [hughd@xxxxxxxxxx: cosmetic fix] [hughd@xxxxxxxxxx: add comment to MEM_CGROUP_CHARGE_TYPE_MAPPED case in __mem_cgroup_uncharge_common()] Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Acked-by: Greg Thelen <gthelen@xxxxxxxxxx> Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxx> Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Cc: Ying Han <yinghan@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/page_cgroup.h | 6 ------ mm/memcontrol.c | 11 ++++++----- 2 files changed, 6 insertions(+), 11 deletions(-) diff -puN include/linux/page_cgroup.h~memcg-remove-pcg_file_mapped include/linux/page_cgroup.h --- a/include/linux/page_cgroup.h~memcg-remove-pcg_file_mapped +++ a/include/linux/page_cgroup.h @@ -6,8 +6,6 @@ enum { PCG_LOCK, /* Lock for pc->mem_cgroup and following bits. */ PCG_USED, /* this object is in use. */ PCG_MIGRATION, /* under page migration */ - /* flags for mem_cgroup and file and I/O status */ - PCG_FILE_MAPPED, /* page is accounted as "mapped" */ __NR_PCG_FLAGS, }; @@ -66,10 +64,6 @@ TESTPCGFLAG(Used, USED) CLEARPCGFLAG(Used, USED) SETPCGFLAG(Used, USED) -SETPCGFLAG(FileMapped, FILE_MAPPED) -CLEARPCGFLAG(FileMapped, FILE_MAPPED) -TESTPCGFLAG(FileMapped, FILE_MAPPED) - SETPCGFLAG(Migration, MIGRATION) CLEARPCGFLAG(Migration, MIGRATION) TESTPCGFLAG(Migration, MIGRATION) diff -puN mm/memcontrol.c~memcg-remove-pcg_file_mapped mm/memcontrol.c --- a/mm/memcontrol.c~memcg-remove-pcg_file_mapped +++ a/mm/memcontrol.c @@ -1966,10 +1966,6 @@ void mem_cgroup_update_page_stat(struct switch (idx) { case MEMCG_NR_FILE_MAPPED: - if (val > 0) - SetPageCgroupFileMapped(pc); - else if (!page_mapped(page)) - ClearPageCgroupFileMapped(pc); idx = MEM_CGROUP_STAT_FILE_MAPPED; break; default: @@ -2617,7 +2613,7 @@ static int mem_cgroup_move_account(struc move_lock_mem_cgroup(from, &flags); - if (PageCgroupFileMapped(pc)) { + if (!anon && page_mapped(page)) { /* Update mapped_file data for mem_cgroup */ preempt_disable(); __this_cpu_dec(from->stat->count[MEM_CGROUP_STAT_FILE_MAPPED]); @@ -2982,6 +2978,11 @@ __mem_cgroup_uncharge_common(struct page switch (ctype) { case MEM_CGROUP_CHARGE_TYPE_MAPPED: + /* + * Generally PageAnon tells if it's the anon statistics to be + * updated; but sometimes e.g. mem_cgroup_uncharge_page() is + * used before page reached the stage of being marked PageAnon. + */ anon = true; /* fallthrough */ case MEM_CGROUP_CHARGE_TYPE_DROP: _ Patches currently in -mm which might be from kamezawa.hiroyu@xxxxxxxxxxxxxx are origin.patch linux-next.patch mm-hugetlb-cleanup-duplicated-code-in-unmapping-vm-range.patch proc-speedup-proc-stat-handling.patch procfs-add-num_to_str-to-speed-up-proc-stat.patch procfs-add-num_to_str-to-speed-up-proc-stat-fix.patch procfs-add-num_to_str-to-speed-up-proc-stat-fix-2.patch procfs-speed-up-proc-pid-stat-statm.patch procfs-speed-up-proc-pid-stat-statm-checkpatch-fixes.patch seq_file-add-seq_set_overflow-seq_overflow.patch seq_file-add-seq_set_overflow-seq_overflow-fix.patch fs-proc-introduce-proc-pid-task-tid-children-entry-v9.patch c-r-procfs-add-arg_start-end-env_start-end-and-exit_code-members-to-proc-pid-stat.patch c-r-prctl-extend-pr_set_mm-to-set-up-more-mm_struct-entries-v2.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html