From d5c3191d36fc30287ec9155d5ec3a276fc9f87ee Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Sun, 20 Nov 2011 17:02:38 +0100 Subject: xenpaging: track the number of paged-out pages This change is required by subsequent changes. Signed-off-by: Olaf Hering Committed-by: Ian Jackson --- tools/xenpaging/xenpaging.c | 8 ++++++++ tools/xenpaging/xenpaging.h | 1 + 2 files changed, 9 insertions(+) (limited to 'tools/xenpaging') diff --git a/tools/xenpaging/xenpaging.c b/tools/xenpaging/xenpaging.c index 04b030c8e8..5877030cdd 100644 --- a/tools/xenpaging/xenpaging.c +++ b/tools/xenpaging/xenpaging.c @@ -467,6 +467,9 @@ static int xenpaging_evict_page(xenpaging_t *paging, /* Notify policy of page being paged out */ policy_notify_paged_out(victim->gfn); + /* Record number of evicted pages */ + paging->num_paged_out++; + out: return ret; } @@ -480,8 +483,13 @@ static int xenpaging_resume_page(xenpaging_t *paging, mem_event_response_t *rsp, /* Notify policy of page being paged in */ if ( notify_policy ) + { policy_notify_paged_in(rsp->gfn); + /* Record number of resumed pages */ + paging->num_paged_out--; + } + /* Tell Xen page is ready */ ret = xc_mem_paging_resume(paging->xc_handle, paging->mem_event.domain_id, rsp->gfn); diff --git a/tools/xenpaging/xenpaging.h b/tools/xenpaging/xenpaging.h index 65cc6f9c3f..2ea8064234 100644 --- a/tools/xenpaging/xenpaging.h +++ b/tools/xenpaging/xenpaging.h @@ -49,6 +49,7 @@ typedef struct xenpaging { mem_event_t mem_event; /* number of pages for which data structures were allocated */ int max_pages; + int num_paged_out; int num_pages; int policy_mru_size; unsigned long pagein_queue[XENPAGING_PAGEIN_QUEUE_SIZE]; -- cgit v1.2.3