]> git.karo-electronics.de Git - linux-beck.git/commit
xprtrdma: Don't invalidate FRMRs if registration fails
authorChuck Lever <chuck.lever@oracle.com>
Tue, 29 Jul 2014 21:24:01 +0000 (17:24 -0400)
committerAnna Schumaker <Anna.Schumaker@Netapp.com>
Thu, 31 Jul 2014 20:22:53 +0000 (16:22 -0400)
commit539431a437d2e5d6d94016184dfc0aab263c01e1
tree5f165252d84f7568766ce4950d554e8c694407a6
parenta7bc211ac926172ad20463afcf00ae7b9ebcd950
xprtrdma: Don't invalidate FRMRs if registration fails

If FRMR registration fails, it's likely to transition the QP to the
error state. Or, registration may have failed because the QP is
_already_ in ERROR.

Thus calling rpcrdma_deregister_external() in
rpcrdma_create_chunks() is useless in FRMR mode: the LOCAL_INVs just
get flushed.

It is safe to leave existing registrations: when FRMR registration
is tried again, rpcrdma_register_frmr_external() checks if each FRMR
is already/still VALID, and knocks it down first if it is.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Tested-by: Shirley Ma <shirley.ma@oracle.com>
Tested-by: Devesh Sharma <devesh.sharma@emulex.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
net/sunrpc/xprtrdma/rpc_rdma.c