[PATCH 13/36] autonuma: autonuma_enter/exit
This is where we register (and unregister) an "mm" structure into AutoNUMA for knuma_scand to scan them. knuma_scand is the first gear in the whole AutoNUMA algorithm. knuma_scand is the daemon that scans the "mm" structures in the list and sets pmd_numa and pte_numa to allow the NUMA hinting page faults to start. All other actions follow after that. If knuma_scand doesn't run, AutoNUMA is fully bypassed. If knuma_scand is stopped, soon all other AutoNUMA gears will settle down too. Acked-by: Rik van Riel Signed-off-by: Andrea Arcangeli --- kernel/fork.c |3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/kernel/fork.c b/kernel/fork.c index f998e53..fbc67ee 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -70,6 +70,7 @@ #include #include #include +#include #include #include @@ -541,6 +542,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p) if (likely(!mm_alloc_pgd(mm))) { mm->def_flags = 0; mmu_notifier_mm_init(mm); + autonuma_enter(mm); return mm; } @@ -609,6 +611,7 @@ void mmput(struct mm_struct *mm) exit_aio(mm); ksm_exit(mm); khugepaged_exit(mm); /* must run before exit_mmap */ + autonuma_exit(mm); /* must run before exit_mmap */ exit_mmap(mm); set_mm_exe_file(mm, NULL); if (!list_empty(>mmlist)) { -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
[PATCH 13/36] autonuma: autonuma_enter/exit
This is where we register (and unregister) an mm structure into AutoNUMA for knuma_scand to scan them. knuma_scand is the first gear in the whole AutoNUMA algorithm. knuma_scand is the daemon that scans the mm structures in the list and sets pmd_numa and pte_numa to allow the NUMA hinting page faults to start. All other actions follow after that. If knuma_scand doesn't run, AutoNUMA is fully bypassed. If knuma_scand is stopped, soon all other AutoNUMA gears will settle down too. Acked-by: Rik van Riel r...@redhat.com Signed-off-by: Andrea Arcangeli aarca...@redhat.com --- kernel/fork.c |3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/kernel/fork.c b/kernel/fork.c index f998e53..fbc67ee 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -70,6 +70,7 @@ #include linux/khugepaged.h #include linux/signalfd.h #include linux/uprobes.h +#include linux/autonuma.h #include asm/pgtable.h #include asm/pgalloc.h @@ -541,6 +542,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p) if (likely(!mm_alloc_pgd(mm))) { mm-def_flags = 0; mmu_notifier_mm_init(mm); + autonuma_enter(mm); return mm; } @@ -609,6 +611,7 @@ void mmput(struct mm_struct *mm) exit_aio(mm); ksm_exit(mm); khugepaged_exit(mm); /* must run before exit_mmap */ + autonuma_exit(mm); /* must run before exit_mmap */ exit_mmap(mm); set_mm_exe_file(mm, NULL); if (!list_empty(mm-mmlist)) { -- To unsubscribe from this list: send the line unsubscribe linux-kernel in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/