Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-15 16:41:58 +00:00
Code Issues Packages Projects Releases Wiki Activity

RDMA/cxgb3: Don't complete flushed send work requests twice

Browse Source 
When the SQ is flushed, mark the flushed entries as not signaled so
the poll logic doesn't re-insert the CQ entry thinking its an out of
order completion.

The bug can cause the NFS/RDMA server to crash due to processing the
same completed work request twice.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Steve Wise 2009-04-29 15:15:59 -07:00 committed by Roland Dreier
parent 56a50adda4
commit ec6995ddaa
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/infiniband/hw/cxgb3/cxio_hal.c
View File

@ -410,6 +410,7 @@ int cxio_flush_sq(struct t3_wq *wq, struct t3_cq *cq, int count)
ptr = wq->sq_rptr + count;
sqp = wq->sq + Q_PTR2IDX(ptr, wq->sq_size_log2);
while (ptr != wq->sq_wptr) {
sqp->signaled = 0;
insert_sq_cqe(wq, cq, sqp);
ptr++;
sqp = wq->sq + Q_PTR2IDX(ptr, wq->sq_size_log2);