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mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-21 11:44:01 +08:00
linux-next/fs/nfsd
Chuck Lever 412055398b nfsd: Fix NFSv4 READ on RDMA when using readv
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>
2020-03-16 12:04:31 -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: drc containerization 2019-07-03 17:52:08 -04:00
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 fs: nfsd: fileache.c: Use built-in RCU list checking 2020-03-16 12:04:31 -04:00
filecache.h nfsd: convert file cache to use over/underflow safe refcount 2020-02-06 11:22:55 -05:00
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
Kconfig NFSD: allow inter server COPY to have a STALE source server fh 2019-12-09 11:42:14 -05:00
lockd.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile nfsd: add a new struct file caching facility to nfsd 2019-08-19 11:00:39 -04:00
netns.h nfsd: set the server_scope during service startup 2020-03-16 12:04:30 -04:00
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: Ensure sampling of the write verifier is atomic with the write 2020-01-22 16:25:41 -05:00
nfs3xdr.c nfsd: Ensure sampling of the write verifier is atomic with the write 2020-01-22 16:25:41 -05:00
nfs4acl.c nfsd: check permissions when setting ACLs 2016-06-24 12:11:52 -04:00
nfs4callback.c nfsd: use boottime for lease expiry calculation 2019-12-19 22:07:17 -05:00
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 2019-12-19 17:46:08 -05:00
nfs4proc.c nfsd4: fix double free in nfsd4_do_async_copy() 2020-02-06 11:22:55 -05:00
nfs4recover.c nfsd: make 'boot_time' 64-bit wide 2019-12-19 17:46:08 -05:00
nfs4state.c fs: nfsd: nfs4state.c: Use built-in RCU list checking 2020-03-16 12:04:31 -04:00
nfs4xdr.c nfsd: Fix NFSv4 READ on RDMA when using readv 2020-03-16 12:04:31 -04:00
nfscache.c nfsd4: Fix kernel crash when reading proc file reply_cache_stats 2019-08-16 13:36:55 -04:00
nfsctl.c Highlights: 2020-02-07 17:50:21 -08:00
nfsd.h nfsd: remove nfs4_reset_lease() declarations 2019-12-19 22:07:17 -05:00
nfsfh.c nfsd: use true and false for boolean values 2018-08-09 16:11:21 -04:00
nfsfh.h nfsd: handle nfs3 timestamps as unsigned 2019-12-19 17:46:08 -05:00
nfsproc.c nfsd: Ensure sampling of the write verifier is atomic with the write 2020-01-22 16:25:41 -05:00
nfssvc.c nfsd: set the server_scope during service startup 2020-03-16 12:04:30 -04:00
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: use boottime for lease expiry calculation 2019-12-19 22:07:17 -05:00
stats.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
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: convert file cache to use over/underflow safe refcount 2020-02-06 11:22:55 -05:00
vfs.c nfsd: Ensure sampling of the write verifier is atomic with the write 2020-01-22 16:25:41 -05:00
vfs.h nfsd: Ensure sampling of the write verifier is atomic with the write 2020-01-22 16:25:41 -05:00
xdr3.h nfsd: Ensure sampling of the write verifier is atomic with the write 2020-01-22 16:25:41 -05:00
xdr4.h NFSD add nfs4 inter ssc to nfsd4_copy 2019-12-09 11:44:07 -05:00
xdr4cb.h NFSD CB_OFFLOAD xdr 2018-09-25 20:34:54 -04:00
xdr.h NFSD: Clean up legacy NFS SYMLINK argument XDR decoders 2018-04-03 15:08:16 -04:00