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| author | Josh Durgin <josh.durgin@inktank.com> | 2013-08-28 01:45:46 +0400 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-09-04 09:08:46 +0400 |
| commit | 03507db631c94a48e316c7f638ffb2991544d617 (patch) | |
| tree | b2035f4289b911bb4172804b2a7b46958a749d0c /arch/x86/mm/mmap.c | |
| parent | 9542cf0bf9b1a3adcc2ef271edbcbdba03abf345 (diff) | |
| download | linux-03507db631c94a48e316c7f638ffb2991544d617.tar.xz | |
rbd: fix buffer size for writes to images with snapshots
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>
Diffstat (limited to 'arch/x86/mm/mmap.c')
0 files changed, 0 insertions, 0 deletions