Displaying 1 result from an estimated 1 matches for "use_pers_gnts".
2012 Sep 19
27
[PATCH] Persistent grant maps for xen blk drivers
...MENTS_PER_REQUEST];
+ struct pers_gnt *pers_gnts[BLKIF_MAX_SEGMENTS_PER_REQUEST];
+ struct page *pages_to_gnt[BLKIF_MAX_SEGMENTS_PER_REQUEST];
+ struct pers_gnt *pers_gnt;
+ phys_addr_t addr;
int i;
+ int new_map;
int nseg = req->u.rw.nr_segments;
+ int segs_to_init = 0;
int ret = 0;
+ int use_pers_gnts;
+ use_pers_gnts = (pending_req->blkif->can_grant_persist &&
+ pending_req->blkif->pers_gnt_c <
+ BLKIF_MAX_SEGMENTS_PER_REQUEST *
+ BLKIF_MAX_PERS_REQUESTS_PER_DEV);
+
+ pending_req->is_pers = use_pers_gnts;
/*
* Fill out preq.nr_sects with proper amount o...