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author | Josh Durgin <josh.durgin@inktank.com> | 2013-08-27 14:45:46 -0700 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-01-09 12:24:25 -0800 |
commit | b33b7132f0feeb0716390330bd5d53fabe057f25 (patch) | |
tree | 5b2af0993e9d915f1486a51d723ef2c49ed44c59 /drivers/virtio/config.c | |
parent | 30379f4553bae684a928c6bdd9dc606fd0ef6093 (diff) |
rbd: fix buffer size for writes to images with snapshots
commit 03507db631c94a48e316c7f638ffb2991544d617 upstream.
rbd_osd_req_create() needs to know the snapshot context size to create
a buffer large enough to send it with the message front. It gets this
from the img_request, which was not set for the obj_request yet. This
resulted in trying to write past the end of the front payload, hitting
this BUG:
libceph: BUG_ON(p > msg->front.iov_base + msg->front.iov_len);
Fix this by associating the obj_request with its img_request
immediately after it's created, before the osd request is created.
Fixes: http://tracker.ceph.com/issues/5760
Suggested-by: Alex Elder <alex.elder@linaro.org>
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
Reviewed-by: Alex Elder <alex.elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/virtio/config.c')
0 files changed, 0 insertions, 0 deletions