diff options
| -rw-r--r-- | drivers/block/rbd.c | 43 |
1 files changed, 9 insertions, 34 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index aa3f6a6de12c..722422e62b36 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -309,8 +309,6 @@ struct rbd_img_request { struct request *rq; /* block request */ struct rbd_obj_request *obj_request; /* obj req initiator */ }; - struct page **copyup_pages; - u32 copyup_page_count; spinlock_t completion_lock;/* protects next_completion */ u32 next_completion; rbd_img_callback_t callback; @@ -1940,6 +1938,9 @@ static void rbd_obj_request_destroy(struct kref *kref) break; } + ceph_release_page_vector(obj_request->copyup_pages, + obj_request->copyup_page_count); + kmem_cache_free(rbd_obj_request_cache, obj_request); } @@ -2372,8 +2373,6 @@ rbd_osd_copyup_callback(struct rbd_obj_request *obj_request) { struct rbd_img_request *img_request; struct rbd_device *rbd_dev; - struct page **pages; - u32 page_count; dout("%s: obj %p\n", __func__, obj_request); @@ -2386,14 +2385,6 @@ rbd_osd_copyup_callback(struct rbd_obj_request *obj_request) rbd_dev = img_request->rbd_dev; rbd_assert(rbd_dev); - pages = obj_request->copyup_pages; - rbd_assert(pages != NULL); - obj_request->copyup_pages = NULL; - page_count = obj_request->copyup_page_count; - rbd_assert(page_count); - obj_request->copyup_page_count = 0; - ceph_release_page_vector(pages, page_count); - /* * We want the transfer count to reflect the size of the * original write request. There is no such thing as a @@ -2412,9 +2403,7 @@ rbd_img_obj_parent_read_full_callback(struct rbd_img_request *img_request) struct rbd_obj_request *orig_request; struct ceph_osd_request *osd_req; struct rbd_device *rbd_dev; - struct page **pages; enum obj_operation_type op_type; - u32 page_count; int img_result; u64 parent_length; @@ -2422,13 +2411,6 @@ rbd_img_obj_parent_read_full_callback(struct rbd_img_request *img_request) /* First get what we need from the image request */ - pages = img_request->copyup_pages; - rbd_assert(pages != NULL); - img_request->copyup_pages = NULL; - page_count = img_request->copyup_page_count; - rbd_assert(page_count); - img_request->copyup_page_count = 0; - orig_request = img_request->obj_request; rbd_assert(orig_request != NULL); rbd_assert(obj_request_type_valid(orig_request->type)); @@ -2447,7 +2429,6 @@ rbd_img_obj_parent_read_full_callback(struct rbd_img_request *img_request) * and re-submit the original write request. */ if (!rbd_dev->parent_overlap) { - ceph_release_page_vector(pages, page_count); rbd_obj_request_submit(orig_request); return; } @@ -2467,14 +2448,12 @@ rbd_img_obj_parent_read_full_callback(struct rbd_img_request *img_request) goto out_err; rbd_osd_req_destroy(orig_request->osd_req); orig_request->osd_req = osd_req; - orig_request->copyup_pages = pages; - orig_request->copyup_page_count = page_count; /* Initialize the copyup op */ osd_req_op_cls_init(osd_req, 0, CEPH_OSD_OP_CALL, "rbd", "copyup"); - osd_req_op_cls_request_data_pages(osd_req, 0, pages, parent_length, 0, - false, false); + osd_req_op_cls_request_data_pages(osd_req, 0, orig_request->copyup_pages, + parent_length, 0, false, false); /* Add the other op(s) */ @@ -2487,7 +2466,6 @@ rbd_img_obj_parent_read_full_callback(struct rbd_img_request *img_request) return; out_err: - ceph_release_page_vector(pages, page_count); rbd_obj_request_error(orig_request, img_result); } @@ -2542,10 +2520,13 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request) pages = ceph_alloc_page_vector(page_count, GFP_NOIO); if (IS_ERR(pages)) { result = PTR_ERR(pages); - pages = NULL; goto out_err; } + rbd_assert(!obj_request->copyup_pages); + obj_request->copyup_pages = pages; + obj_request->copyup_page_count = page_count; + result = -ENOMEM; parent_request = rbd_parent_request_create(obj_request, img_offset, length); @@ -2556,19 +2537,13 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request) if (result) goto out_err; - parent_request->copyup_pages = pages; - parent_request->copyup_page_count = page_count; parent_request->callback = rbd_img_obj_parent_read_full_callback; result = rbd_img_request_submit(parent_request); if (!result) return 0; - parent_request->copyup_pages = NULL; - parent_request->copyup_page_count = 0; out_err: - if (pages) - ceph_release_page_vector(pages, page_count); if (parent_request) rbd_img_request_put(parent_request); return result; |