Chuck Lever 512570b178 nfsd: Fix NFSv4 READ on RDMA when using readv ... commit 412055398b upstream. svcrdma expects that the payload falls precisely into the xdr_buf page vector. This does not seem to be the case for nfsd4_encode_readv(). This code is called only when fops->splice_read is missing or when RQ_SPLICE_OK is clear, so it's not a noticeable problem in many common cases. Add new transport method: ->xpo_read_payload so that when a READ payload does not fit exactly in rq_res's page vector, the XDR encoder can inform the RPC transport exactly where that payload is, without the payload's XDR pad. That way, when a Write chunk is present, the transport knows what byte range in the Reply message is supposed to be matched with the chunk. Note that the Linux NFS server implementation of NFS/RDMA can currently handle only one Write chunk per RPC-over-RDMA message. This simplifies the implementation of this fix. Fixes: b042098063 ("nfsd4: allow exotic read compounds") Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=198053 Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: Timo Rothenpieler <timo@rothenpieler.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-08-11 15:33:42 +02:00
..
Kconfig	nfsd: depend on CRYPTO_MD5 for legacy client tracking	2020-01-26 10:01:01 +01:00
Makefile	nfsd: add a new struct file caching facility to nfsd	2019-08-19 11:00:39 -04:00
acl.h	nfsd: eliminate an unnecessary acl size limit	2019-08-28 21:13:45 -04:00
auth.c	nfsd: auth: Fix gid sorting when rootsquash enabled	2018-01-22 20:13:07 -08:00
auth.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blocklayout.c	nfsd: convert fi_deleg_file and ls_file fields to nfsd_file	2019-08-19 11:09:09 -04:00
blocklayoutxdr.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
blocklayoutxdr.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
cache.h	nfsd4: make drc_slab global, not per-net	2020-06-24 17:50:37 +02:00
current_stateid.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
export.c	nfsd: nfsd_file cache entries should be per net namespace	2019-09-10 09:23:41 -04:00
export.h	knfsd: Allow lockless lookups of the exports	2018-10-29 16:58:04 -04:00
fault_inject.c	nfsd: no need to check return value of debugfs_create functions	2019-07-03 16:57:17 +02:00
filecache.c	nfsd: fix filecache lookup	2020-02-11 04:35:32 -08:00
filecache.h	nfsd: nfsd_file cache entries should be per net namespace	2019-09-10 09:23:41 -04:00
flexfilelayout.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
flexfilelayoutxdr.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
flexfilelayoutxdr.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
idmap.h	nfsd: Remove duplicate define of IDMAP_NAMESZ/IDMAP_TYPE_xx	2015-07-20 14:58:46 -04:00
lockd.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
netns.h	nfsd4: make drc_slab global, not per-net	2020-06-24 17:50:37 +02:00
nfs2acl.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
nfs3acl.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
nfs3proc.c	nfsd: fix nfs read eof detection	2019-09-23 16:24:08 -04:00
nfs3xdr.c	nfsd: Support the server resetting the boot verifier	2019-09-10 09:23:41 -04:00
nfs4acl.c	nfsd: check permissions when setting ACLs	2016-06-24 12:11:52 -04:00
nfs4callback.c	nfsd: Fix svc_xprt refcnt leak when setup callback client failed	2020-06-24 17:50:17 +02:00
nfs4idmap.c	nfsd: Fix misuse of strlcpy	2019-07-08 23:16:11 -04:00
nfs4layouts.c	nfsd: fix delay timer on 32-bit architectures	2020-02-11 04:35:46 -08:00
nfs4proc.c	NFSD fixing possible null pointer derefering in copy offload	2020-01-17 19:49:02 +01:00
nfs4recover.c	nfsd: Fix cld_net->cn_tfm initialization	2020-01-17 19:48:47 +01:00
nfs4state.c	nfsd4: fix NULL dereference in nfsd/clients display code	2020-07-29 10:18:34 +02:00
nfs4xdr.c	nfsd: Fix NFSv4 READ on RDMA when using readv	2020-08-11 15:33:42 +02:00
nfscache.c	nfsd: safer handling of corrupted c_type	2020-06-24 17:50:38 +02:00
nfsctl.c	nfsd: fix nfsdfs inode reference count leak	2020-07-09 09:37:53 +02:00
nfsd.h	nfsd4: fix nfsdfs reference count loop	2020-07-09 09:37:53 +02:00
nfsfh.c	nfsd: use true and false for boolean values	2018-08-09 16:11:21 -04:00
nfsfh.h	This request is late, apologies.	2018-02-08 15:18:32 -08:00
nfsproc.c	nfsd: fix nfs read eof detection	2019-09-23 16:24:08 -04:00
nfssvc.c	nfsd: restore NFSv3 ACL support	2019-12-13 08:42:52 +01:00
nfsxdr.c	nfsd: knfsd must use the container user namespace	2019-04-24 09:46:35 -04:00
pnfs.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
state.h	nfsd: fix jiffies/time_t mixup in LRU list	2020-02-11 04:35:47 -08:00
stats.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
stats.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
trace.c	nfsd: move include of state.h from trace.c to trace.h	2015-10-23 15:57:29 -04:00
trace.h	nfsd: add a new struct file caching facility to nfsd	2019-08-19 11:00:39 -04:00
vfs.c	nfsd: apply umask on fs without ACL support	2020-07-09 09:37:55 +02:00
vfs.h	nfsd: Ensure CLONE persists data and metadata changes to the target file	2019-12-13 08:42:51 +01:00
xdr.h	NFSD: Clean up legacy NFS SYMLINK argument XDR decoders	2018-04-03 15:08:16 -04:00
xdr3.h	nfsd: fix nfs read eof detection	2019-09-23 16:24:08 -04:00
xdr4.h	nfsd: hook up nfs4_preprocess_stateid_op to the nfsd_file cache	2019-08-19 11:09:09 -04:00
xdr4cb.h	NFSD CB_OFFLOAD xdr	2018-09-25 20:34:54 -04:00