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| author | Steve Wise | 2013-04-23 18:17:14 +0200 |
|---|---|---|
| committer | Roland Dreier | 2013-04-25 02:47:33 +0200 |
| commit | e413a823f60b582af471f0079eb99f50d34b0da7 (patch) | |
| tree | 945c3a57df72e353f03a5ad3b7623df219dcab56 /drivers/infiniband/hw | |
| parent | RDMA: Rename random32() to prandom_u32() (diff) | |
| download | kernel-qcow2-linux-e413a823f60b582af471f0079eb99f50d34b0da7.tar.gz kernel-qcow2-linux-e413a823f60b582af471f0079eb99f50d34b0da7.tar.xz kernel-qcow2-linux-e413a823f60b582af471f0079eb99f50d34b0da7.zip | |
RDMA/iwcm: Don't touch cmid after dropping reference
The function cm_work_handler() cannot touch the cm_id after it derefs
it, because it might be freed on another concurrent thread. If there
are more work items queued for this cm_id, then we know there must be
more references because they are added when the work items are queued.
So in the while loop inside cm_work_handler(), after derefing, if the
queue is empty, then exit the function. Otherwise we know it's safe
to re-acquire the lock.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw')
0 files changed, 0 insertions, 0 deletions