Messages in this thread Patch in this message | | | From | Alex Thorlton <> | Subject | [PATCH 1/2] Add pgcollapse stat counter to task_struct | Date | Wed, 22 Oct 2014 22:06:25 -0500 |
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Pretty self explanatory. Just adding one of the same counters that I used to gather data for the other patches.
Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Bob Liu <lliubbo@gmail.com> Cc: David Rientjes <rientjes@google.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Hugh Dickins <hughd@google.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Kees Cook <keescook@chromium.org> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vladimir Davydov <vdavydov@parallels.com> Cc: linux-kernel@vger.kernel.org
--- include/linux/sched.h | 3 +++ mm/huge_memory.c | 1 + 2 files changed, 4 insertions(+)
diff --git a/include/linux/sched.h b/include/linux/sched.h index 5e344bb..9b87d9a 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1661,6 +1661,9 @@ struct task_struct { unsigned int sequential_io; unsigned int sequential_io_avg; #endif +#ifdef CONFIG_TRANSPARENT_HUGEPAGE + unsigned int pgcollapse_pages_collapsed; +#endif }; /* Future-safe accessor for struct task_struct's cpus_allowed. */ diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 74c78aa..ca8a813 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2531,6 +2531,7 @@ static void collapse_huge_page(struct mm_struct *mm, *hpage = NULL; + mm->owner->pgcollapse_pages_collapsed++; khugepaged_pages_collapsed++; out_up_write: up_write(&mm->mmap_sem); -- 1.7.12.4
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