linux-toradex.git/drivers/block/rbd.c, branch v3.0.71 Linux kernel for Apalis and Colibri modules rbd: handle online resize of underlying rbd image 2011-05-24T18:52:08+00:00 Sage Weil sage@newdream.net 2011-04-20T05:49:06+00:00 9db4b3e32778400555d5cc6fb61d4058902d37f7 If we get a notification that the image header has changed, check for a change in the image size. Signed-off-by: Sage Weil <sage@newdream.net> 
If we get a notification that the image header has changed, check for
a change in the image size.

Signed-off-by: Sage Weil <sage@newdream.net>
rbd: use snprintf for disk->disk_name 2011-05-24T18:52:03+00:00 Sage Weil sage@newdream.net 2011-05-13T03:57:03+00:00 aedfec59eed37d1ff7ce09b303b668234e9a7f8e Signed-off-by: Sage Weil <sage@newdream.net> 
Signed-off-by: Sage Weil <sage@newdream.net>
rbd: cleanup: make kfree match kmalloc 2011-05-24T18:52:01+00:00 Sage Weil sage@newdream.net 2011-05-12T23:10:50+00:00 916d4d672779de8e42346fff338617c7b841e8e5 Signed-off-by: Sage Weil <sage@newdream.net> 
Signed-off-by: Sage Weil <sage@newdream.net>
rbd: warn on update_snaps failure on notify 2011-05-19T18:25:05+00:00 Sage Weil sage@newdream.net 2011-05-12T23:08:30+00:00 13143d2d1cffd243a6d778000b02ab4938ac751a Signed-off-by: Sage Weil <sage@newdream.net> 
Signed-off-by: Sage Weil <sage@newdream.net>
rbd: fix split bio handling 2011-05-13T20:52:57+00:00 Yehuda Sadeh yehuda@hq.newdream.net 2011-05-13T20:52:56+00:00 1fec70932d867416ffe620dd17005f168cc84eb5 The rbd driver currently splits bios when they span an object boundary. However, the blk_end_request expects the completions to roll up the results in block device order, and the split rbd/ceph ops can complete in any order. This patch adds a struct rbd_req_coll to track completion of split requests and ensures that the results are passed back up to the block layer in order. This fixes errors where the file system gets completion of a read operation that spans an object boundary before the data has actually arrived. The bug is easily reproduced with iozone with a working set larger than available RAM. Reported-by: Fyodor Ustinov <ufm@ufm.su> Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net> 
The rbd driver currently splits bios when they span an object boundary.
However, the blk_end_request expects the completions to roll up the results
in block device order, and the split rbd/ceph ops can complete in any
order.  This patch adds a struct rbd_req_coll to track completion of split
requests and ensures that the results are passed back up to the block layer
in order.

This fixes errors where the file system gets completion of a read operation
that spans an object boundary before the data has actually arrived.  The
bug is easily reproduced with iozone with a working set larger than
available RAM.

Reported-by: Fyodor Ustinov <ufm@ufm.su>
Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
rbd: fix leak of ops struct 2011-05-13T03:59:14+00:00 Sage Weil sage@newdream.net 2011-05-12T23:13:54+00:00 11f770027b5c0de16544f3ec82b5c6f9f8d5a644 The ops vector must be freed by the rbd_do_request caller. Signed-off-by: Sage Weil <sage@newdream.net> 
The ops vector must be freed by the rbd_do_request caller.

Signed-off-by: Sage Weil <sage@newdream.net>
libceph: fix ceph_osdc_alloc_request error checks 2011-05-03T16:28:13+00:00 Sage Weil sage@newdream.net 2011-05-03T16:23:36+00:00 4ad12621e442b7a072e81270808f617cb65c5672 ceph_osdc_alloc_request returns NULL on failure. Signed-off-by: Sage Weil <sage@newdream.net> 
ceph_osdc_alloc_request returns NULL on failure.

Signed-off-by: Sage Weil <sage@newdream.net>
rbd: use watch/notify for changes in rbd header 2011-03-22T18:33:56+00:00 Yehuda Sadeh yehuda@hq.newdream.net 2011-03-21T22:10:11+00:00 59c2be1e4d42c0d4949cecdeef3f37070a1fbc13 Send notifications when we change the rbd header (e.g. create a snapshot) and wait for such notifications. This allows synchronizing the snapshot creation between different rbd clients/rools. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net> 
Send notifications when we change the rbd header (e.g. create a snapshot)
and wait for such notifications.  This allows synchronizing the snapshot
creation between different rbd clients/rools.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
rbd: fix cleanup when trying to mount inexistent image 2011-01-12T23:15:18+00:00 Yehuda Sadeh yehuda@hq.newdream.net 2011-01-07T22:58:42+00:00 766fc43973b16f9becb6b7402b3e052dbb84adee Previously we didn't clean up the sysfs entry that was just created. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net> 
Previously we didn't clean up the sysfs entry that was just
created.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
rbd: replace the rbd sysfs interface 2010-12-01T23:53:22+00:00 Yehuda Sadeh yehuda@hq.newdream.net 2010-11-19T22:51:04+00:00 dfc5606dc51381186de765243bab340c8e021868 The new interface creates directories per mapped image and under each it creates a subdir per available snapshot. This allows keeping a cleaner interface within the sysfs guidelines. The ABI documentation was updated too. Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net> 
The new interface creates directories per mapped image
and under each it creates a subdir per available snapshot.
This allows keeping a cleaner interface within the sysfs
guidelines. The ABI documentation was updated too.

Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>