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ca9364dde5
linux-next/fs/nfsd
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Dai Ngo ca9364dde5 NFSD: Fix 5 seconds delay when doing inter server copy 
Since commit b4868b44c5 ("NFSv4: Wait for stateid updates after
CLOSE/OPEN_DOWNGRADE"), every inter server copy operation suffers 5
seconds delay regardless of the size of the copy. The delay is from
nfs_set_open_stateid_locked when the check by nfs_stateid_is_sequential
fails because the seqid in both nfs4_state and nfs4_stateid are 0.

Fix by modifying nfs4_init_cp_state to return the stateid with seqid 1
instead of 0. This is also to conform with section 4.8 of RFC 7862.

Here is the relevant paragraph from section 4.8 of RFC 7862:

   A copy offload stateid's seqid MUST NOT be zero.  In the context of a
   copy offload operation, it is inappropriate to indicate "the most
   recent copy offload operation" using a stateid with a seqid of zero
   (see Section 8.2.2 of [RFC5661]).  It is inappropriate because the
   stateid refers to internal state in the server and there may be
   several asynchronous COPY operations being performed in parallel on
   the same file by the server.  Therefore, a copy offload stateid with
   a seqid of zero MUST be considered invalid.

Fixes: ce0887ac96 ("NFSD add nfs4 inter ssc to nfsd4_copy")
Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2020-12-09 09:38:34 -05:00
..
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 block: add a bdev_is_partition helper 2020-09-25 08:18:57 -06:00
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 2020-06-01 17:44:45 -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: Map nfserr_wrongsec outside of nfsd_dispatch 2020-10-02 09:37:42 -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 error return code in nfsd_file_cache_init() 2020-11-30 14:45:56 -05:00
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 NFSv4.2: Fix NFS4ERR_STALE error when doing inter server copy 2020-10-21 10:31:20 -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
Makefile nfsd: remove fault injection code 2020-09-25 18:01:26 -04:00
netns.h nfsd: netns.h: delete a duplicated word 2020-07-24 17:25:13 -04:00
nfs2acl.c NFSD: Add common helpers to decode void args and encode void results 2020-11-30 14:46:35 -05:00
nfs3acl.c NFSD: Add common helpers to decode void args and encode void results 2020-11-30 14:46:35 -05:00
nfs3proc.c NFSD: Add common helpers to decode void args and encode void results 2020-11-30 14:46:35 -05:00
nfs3xdr.c NFSD: Add common helpers to decode void args and encode void results 2020-11-30 14:46:35 -05:00
nfs4acl.c nfsd: check permissions when setting ACLs 2016-06-24 12:11:52 -04:00
nfs4callback.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfs4idmap.c nfsd: Use seq_putc() in two functions 2020-07-13 17:28:46 -04:00
nfs4layouts.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfs4proc.c NFSD: Fix sparse warning in nfs4proc.c 2020-12-09 09:38:34 -05:00
nfs4recover.c nfsd: avoid a NULL dereference in __cld_pipe_upcall() 2020-07-13 17:28:46 -04:00
nfs4state.c NFSD: Fix 5 seconds delay when doing inter server copy 2020-12-09 09:38:34 -05:00
nfs4xdr.c NFSD: Remove macros that are no longer used 2020-11-30 14:46:44 -05:00
nfscache.c silence nfscache allocation warnings with kvzalloc 2020-09-25 18:01:28 -04:00
nfsctl.c nfsd: remove fault injection code 2020-09-25 18:01:26 -04:00
nfsd.h NFSD: Add common helpers to decode void args and encode void results 2020-11-30 14:46:35 -05:00
nfsfh.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
nfsfh.h nfsd: handle nfs3 timestamps as unsigned 2019-12-19 17:46:08 -05:00
nfsproc.c NFSD: Add common helpers to decode void args and encode void results 2020-11-30 14:46:35 -05:00
nfssvc.c nfsd: Fix message level for normal termination 2020-12-09 09:38:33 -05:00
nfsxdr.c NFSD: Add common helpers to decode void args and encode void results 2020-11-30 14:46:35 -05:00
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: remove fault injection code 2020-09-25 18:01:26 -04:00
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: Add SPDX header for fs/nfsd/trace.c 2020-11-30 13:00:24 -05:00
trace.h NFSD: Add tracepoints in nfsd4_decode/encode_compound() 2020-11-30 14:46:35 -05:00
vfs.c NFSD: Correct type annotations in user xattr helpers 2020-09-25 18:01:27 -04:00
vfs.h nfsd: define xattr functions to call into their vfs counterparts 2020-07-13 17:27:03 -04:00
xdr3.h NFSD: Add common helpers to decode void args and encode void results 2020-11-30 14:46:35 -05:00
xdr4.h NFSD: Remove macros that are no longer used 2020-11-30 14:46:44 -05:00
xdr4cb.h NFSD CB_OFFLOAD xdr 2018-09-25 20:34:54 -04:00
xdr.h NFSD: Add common helpers to decode void args and encode void results 2020-11-30 14:46:35 -05:00