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Commit c54d47bf authored by Alex Elder's avatar Alex Elder Committed by Sage Weil
Browse files

libceph: define a few more helpers 



Define ceph_osd_data_init() and ceph_osd_data_release() to clean up
a little code.

Signed-off-by: default avatarAlex Elder <elder@inktank.com>
Reviewed-by: default avatarJosh Durgin <josh.durgin@inktank.com>
parent 43bfe5de

net/ceph/osd_client.c

+26 −18
Original line number Diff line number Diff line
@@ -79,6 +79,12 @@ static int calc_layout(struct ceph_file_layout *layout, u64 off, u64 *plen, 
	return 0;

}



static void ceph_osd_data_init(struct ceph_osd_data *osd_data)

{

	memset(osd_data, 0, sizeof (*osd_data));

	osd_data->type = CEPH_OSD_DATA_TYPE_NONE;

}



void ceph_osd_data_pages_init(struct ceph_osd_data *osd_data,

			struct page **pages, u64 length, u32 alignment,

			bool pages_from_pool, bool own_pages)
@@ -111,16 +117,28 @@ void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data, 
EXPORT_SYMBOL(ceph_osd_data_bio_init);

#endif /* CONFIG_BLOCK */



static void ceph_osd_data_release(struct ceph_osd_data *osd_data)

{

	if (osd_data->type != CEPH_OSD_DATA_TYPE_PAGES)

		return;



	if (osd_data->own_pages) {

		int num_pages;



		num_pages = calc_pages_for((u64)osd_data->alignment,

						(u64)osd_data->length);

		ceph_release_page_vector(osd_data->pages, num_pages);

	}

}



/*

 * requests

 */

void ceph_osdc_release_request(struct kref *kref)

{

	int num_pages;

	struct ceph_osd_request *req = container_of(kref,

						    struct ceph_osd_request,

						    r_kref);

	struct ceph_osd_request *req;



	req = container_of(kref, struct ceph_osd_request, r_kref);

	if (req->r_request)

		ceph_msg_put(req->r_request);

	if (req->r_reply) {
@@ -128,18 +146,8 @@ void ceph_osdc_release_request(struct kref *kref) 
		ceph_msg_put(req->r_reply);

	}



	if (req->r_data_in.type == CEPH_OSD_DATA_TYPE_PAGES &&

			req->r_data_in.own_pages) {

		num_pages = calc_pages_for((u64)req->r_data_in.alignment,

						(u64)req->r_data_in.length);

		ceph_release_page_vector(req->r_data_in.pages, num_pages);

	}

	if (req->r_data_out.type == CEPH_OSD_DATA_TYPE_PAGES &&

			req->r_data_out.own_pages) {

		num_pages = calc_pages_for((u64)req->r_data_out.alignment,

						(u64)req->r_data_out.length);

		ceph_release_page_vector(req->r_data_out.pages, num_pages);

	}

	ceph_osd_data_release(&req->r_data_in);

	ceph_osd_data_release(&req->r_data_out);



	ceph_put_snap_context(req->r_snapc);

	if (req->r_mempool)
@@ -203,8 +211,8 @@ struct ceph_osd_request *ceph_osdc_alloc_request(struct ceph_osd_client *osdc, 
	}

	req->r_reply = msg;



	req->r_data_in.type = CEPH_OSD_DATA_TYPE_NONE;

	req->r_data_out.type = CEPH_OSD_DATA_TYPE_NONE;

	ceph_osd_data_init(&req->r_data_in);

	ceph_osd_data_init(&req->r_data_out);



	/* create request message; allow space for oid */

	if (use_mempool)