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xen
24215-xenpaging_track_the_number_of_paged-out_p...
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File 24215-xenpaging_track_the_number_of_paged-out_pages.patch of Package xen
changeset: 24215:dc7dabe2fe99 user: Olaf Hering <olaf@aepfle.de> date: Sun Nov 20 17:02:38 2011 +0100 files: tools/xenpaging/xenpaging.c tools/xenpaging/xenpaging.h description: xenpaging: track the number of paged-out pages This change is required by subsequent changes. Signed-off-by: Olaf Hering <olaf@aepfle.de> Committed-by: Ian Jackson <ian.jackson.citrix.com> --- tools/xenpaging/xenpaging.c | 8 ++++++++ tools/xenpaging/xenpaging.h | 1 + 2 files changed, 9 insertions(+) Index: xen-4.1.2-testing/tools/xenpaging/xenpaging.c =================================================================== --- xen-4.1.2-testing.orig/tools/xenpaging/xenpaging.c +++ xen-4.1.2-testing/tools/xenpaging/xenpaging.c @@ -467,6 +467,9 @@ static int xenpaging_evict_page(xenpagin /* 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(xenpagi /* 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); Index: xen-4.1.2-testing/tools/xenpaging/xenpaging.h =================================================================== --- xen-4.1.2-testing.orig/tools/xenpaging/xenpaging.h +++ xen-4.1.2-testing/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];
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