Chuck Lever 2b7bbc963d SUNRPC: Fix large reads on NFS/RDMA ... After commit a11a2bf4, "SUNRPC: Optimise away unnecessary data moves in xdr_align_pages", Thu Aug 2 13:21:43 2012, READs larger than a few hundred bytes via NFS/RDMA no longer work. This commit exposed a long-standing bug in rpcrdma_inline_fixup(). I reproduce this with an rsize=4096 mount using the cthon04 basic tests. Test 5 fails with an EIO error. For my reproducer, kernel log shows: NFS: server cheating in read reply: count 4096 > recvd 0 rpcrdma_inline_fixup() is zeroing the xdr_stream::page_len field, and xdr_align_pages() is now returning that value to the READ XDR decoder function. That field is set up by xdr_inline_pages() by the READ XDR encoder function. As far as I can tell, it is supposed to be left alone after that, as it describes the dimensions of the reply xdr_stream, not the contents of that stream. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=68391 Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>		2014-03-17 15:30:38 -04:00
..
Makefile	rdma: makefile	2008-02-01 16:42:14 -05:00
rpc_rdma.c	SUNRPC: Fix large reads on NFS/RDMA	2014-03-17 15:30:38 -04:00
svc_rdma_marshal.c	svcrdma: underflow issue in decode_write_list()	2013-07-15 11:46:23 -04:00
svc_rdma_recvfrom.c	nfsd4: cleanup: replace rq_resused count by rq_next_page pointer	2012-12-17 22:00:16 -05:00
svc_rdma_sendto.c	nfsd4: cleanup: replace rq_resused count by rq_next_page pointer	2012-12-17 22:00:16 -05:00
svc_rdma_transport.c	svcrpc: make svc_xprt_received static	2012-08-21 17:42:01 -04:00
svc_rdma.c	net: Convert uses of typedef ctl_table to struct ctl_table	2013-06-13 02:36:09 -07:00
transport.c	net: Convert uses of typedef ctl_table to struct ctl_table	2013-06-13 02:36:09 -07:00
verbs.c	IB/core: Add "type 2" memory windows support	2013-02-21 11:51:45 -08:00
xprt_rdma.h	SUNRPC: Eliminate task->tk_xprt accesses that bypass rcu_dereference()	2013-02-01 10:13:47 -05:00