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Commit 78cea76e authored by Alex Elder's avatar Alex Elder
Browse files

rbd: move ceph_parse_options() call up 



Move option parsing out of rbd_get_client() and into its caller.

Signed-off-by: default avatarAlex Elder <elder@inktank.com>
Reviewed-by: default avatarJosh Durgin <josh.durgin@inktank.com>
parent daba5fdb

drivers/block/rbd.c

+27 −21
Original line number Diff line number Diff line
@@ -453,27 +453,11 @@ static int parse_rbd_opts_token(char *c, void *private) 
 * Get a ceph client with specific addr and configuration, if one does

 * not exist create it.

 */

static int rbd_get_client(struct rbd_device *rbd_dev, const char *mon_addr,

				size_t mon_addr_len, char *options)

static int rbd_get_client(struct rbd_device *rbd_dev,

				struct ceph_options *ceph_opts)

{

	struct rbd_options rbd_opts;

	struct ceph_options *ceph_opts;

	struct rbd_client *rbdc;



	/* Initialize all rbd options to the defaults */



	rbd_opts.read_only = RBD_READ_ONLY_DEFAULT;



	ceph_opts = ceph_parse_options(options, mon_addr,

					mon_addr + mon_addr_len,

					parse_rbd_opts_token, &rbd_opts);

	if (IS_ERR(ceph_opts))

		return PTR_ERR(ceph_opts);



	/* Record the parsed rbd options */



	rbd_dev->mapping.read_only = rbd_opts.read_only;



	rbdc = rbd_client_find(ceph_opts);

	if (rbdc) {

		/* using an existing client */
@@ -3132,9 +3116,11 @@ static ssize_t rbd_add(struct bus_type *bus, 
	struct rbd_device *rbd_dev = NULL;

	const char *mon_addrs = NULL;

	size_t mon_addrs_size = 0;

	char *snap_name;

	struct rbd_options rbd_opts;

	struct ceph_options *ceph_opts;

	struct ceph_osd_client *osdc;

	int rc = -ENOMEM;

	char *snap_name;



	if (!try_module_get(THIS_MODULE))

		return -ENODEV;
@@ -3160,9 +3146,26 @@ static ssize_t rbd_add(struct bus_type *bus, 
		goto err_out_mem;

	}



	rc = rbd_get_client(rbd_dev, mon_addrs, mon_addrs_size - 1, options);

	if (rc < 0)

	/* Initialize all rbd options to the defaults */



	rbd_opts.read_only = RBD_READ_ONLY_DEFAULT;



	ceph_opts = ceph_parse_options(options, mon_addrs,

					mon_addrs + mon_addrs_size - 1,

					parse_rbd_opts_token, &rbd_opts);

	if (IS_ERR(ceph_opts)) {

		rc = PTR_ERR(ceph_opts);

		goto err_out_args;

	}



	/* Record the parsed rbd options */



	rbd_dev->mapping.read_only = rbd_opts.read_only;



	rc = rbd_get_client(rbd_dev, ceph_opts);

	if (rc < 0)

		goto err_out_opts;

	ceph_opts = NULL;	/* ceph_opts now owned by rbd_dev client */



	/* pick the pool */

	osdc = &rbd_dev->rbd_client->client->osdc;
@@ -3254,6 +3257,9 @@ static ssize_t rbd_add(struct bus_type *bus, 
	kfree(rbd_dev->header_name);

	rbd_put_client(rbd_dev);

	kfree(rbd_dev->image_id);

err_out_opts:

	if (ceph_opts)

		ceph_destroy_options(ceph_opts);

err_out_args:

	kfree(rbd_dev->snap_name);

	kfree(rbd_dev->image_name);