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authorAlex Elder <elder@inktank.com>2013-04-28 23:32:34 -0500
committerSage Weil <sage@inktank.com>2013-05-01 21:20:07 -0700
commitb536f69a3a589113992c32982bf2981c8225c9da (patch)
tree389599582a07f0e268a0ad4a755027aa1c8319fa /drivers/block
parent8ad42cd0c002fa278f6d0135e22fcb188e400a28 (diff)
rbd: set up devices only for mapped images
Stop setting up Linux devices during the image probe operation. Instead, set up the devices as a separate step after the image probe, in rbd_add(). A consequence of this is that only mapped images get devices assigned to them, which is pretty sweet. This resolves: http://tracker.ceph.com/issues/4774 Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'drivers/block')
-rw-r--r--drivers/block/rbd.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 57e56617e45..d41f9769034 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -4879,10 +4879,6 @@ static int rbd_dev_image_probe(struct rbd_device *rbd_dev)
goto err_out_snaps;
ret = rbd_dev_probe_parent(rbd_dev);
- if (ret)
- goto err_out_snaps;
-
- ret = rbd_dev_device_setup(rbd_dev);
if (!ret)
return 0;
@@ -4964,9 +4960,12 @@ static ssize_t rbd_add(struct bus_type *bus,
if (rc < 0)
goto err_out_rbd_dev;
- return count;
+ rc = rbd_dev_device_setup(rbd_dev);
+ if (!rc)
+ return count;
+
+ rbd_dev_image_release(rbd_dev);
err_out_rbd_dev:
- kfree(rbd_dev->header_name);
rbd_dev_destroy(rbd_dev);
err_out_client:
rbd_put_client(rbdc);
@@ -5029,7 +5028,6 @@ static void rbd_dev_remove_parent(struct rbd_device *rbd_dev)
second = third;
}
rbd_assert(second);
- rbd_bus_del_dev(second);
rbd_dev_image_release(second);
first->parent = NULL;
first->parent_overlap = 0;