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| author | Chuck Lever <chuck.lever@oracle.com> | 2017-06-08 18:52:36 +0300 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2017-07-13 23:00:11 +0300 |
| commit | 1f541895dae956df0be14a3190f507b601ac3fcc (patch) | |
| tree | c4c05cc0be10d9db9505599aa15e2ef967b41992 /block/blk-wbt.c | |
| parent | 8d75483a232aea9c3224b8146edf45b3bbb552fd (diff) | |
| download | linux-1f541895dae956df0be14a3190f507b601ac3fcc.tar.xz | |
xprtrdma: Don't defer MR recovery if ro_map fails
Deferred MR recovery does a DMA-unmapping of the MW. However, ro_map
invokes rpcrdma_defer_mr_recovery in some error cases where the MW
has not even been DMA-mapped yet.
Avoid a DMA-unmapping error replacing rpcrdma_defer_mr_recovery.
Also note that if ib_dma_map_sg is asked to map 0 nents, it will
return 0. So the extra "if (i == 0)" check is no longer needed.
Fixes: 42fe28f60763 ("xprtrdma: Do not leak an MW during a DMA ...")
Fixes: 505bbe64dd04 ("xprtrdma: Refactor MR recovery work queues")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'block/blk-wbt.c')
0 files changed, 0 insertions, 0 deletions