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f52f1975b1
linux/fs/nfsd
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Chuck Lever f52f1975b1 NFSD: Add nfsd_seq4_status trace event 
Add a trace point that records SEQ4_STATUS flags returned in an
NFSv4.1 SEQUENCE response. SEQ4_STATUS flags report backchannel
issues and changes to lease state to clients. Knowing what the
server is reporting to clients is useful for debugging both
configuration and operational issues in real time.

For example, upcoming patches will enable server administrators to
revoke parts of a client's lease; that revocation is indicated to
the client when a subsequent SEQUENCE operation has one or more
SEQ4_STATUS flags that are set.

Sample trace records:

nfsd-927   [006]   615.581821: nfsd_seq4_status:     xid=0x095ded07 sessionid=65a032c3:b7845faf:00000001:00000000 status_flags=BACKCHANNEL_FAULT
nfsd-927   [006]   615.588043: nfsd_seq4_status:     xid=0x0a5ded07 sessionid=65a032c3:b7845faf:00000001:00000000 status_flags=BACKCHANNEL_FAULT
nfsd-928   [003]   615.588448: nfsd_seq4_status:     xid=0x0b5ded07 sessionid=65a032c3:b7845faf:00000001:00000000 status_flags=BACKCHANNEL_FAULT

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-01 09:12:13 -05:00
..
acl.h NFSD: add posix ACLs to struct nfsd_attrs 2022-08-04 10:28:03 -04:00
auth.c cred: get rid of CONFIG_DEBUG_CREDENTIALS 2023-12-15 14:19:48 -08:00
auth.h
blocklayout.c nfsd: convert to new timestamp accessors 2023-10-18 14:08:24 +02:00
blocklayoutxdr.c NFSD: Make @gdev parameter of ->encode_getdeviceinfo a const pointer 2023-10-16 12:44:29 -04:00
blocklayoutxdr.h NFSD: Make @gdev parameter of ->encode_getdeviceinfo a const pointer 2023-10-16 12:44:29 -04:00
cache.h nfsd: make all of the nfsd stats per-network namespace 2024-03-01 09:12:10 -05:00
current_stateid.h
export.c vfs-6.7.fsid 2023-11-07 12:11:26 -08:00
export.h NFSD: Fix frame size warning in svc_export_parse() 2023-10-16 12:44:39 -04:00
filecache.c nfsd: use __fput_sync() to avoid delayed closing of files. 2024-03-01 09:12:05 -05:00
filecache.h nfsd: Don't leave work of closing files to a work queue 2024-03-01 09:12:05 -05:00
flexfilelayout.c nfsd: move nfserrno() to vfs.c 2022-11-28 12:54:44 -05:00
flexfilelayoutxdr.c NFSD: Make @gdev parameter of ->encode_getdeviceinfo a const pointer 2023-10-16 12:44:29 -04:00
flexfilelayoutxdr.h NFSD: Make @gdev parameter of ->encode_getdeviceinfo a const pointer 2023-10-16 12:44:29 -04:00
idmap.h
Kconfig nfsd: new Kconfig option for legacy client tracking 2024-01-07 17:54:24 -05:00
lockd.c
Makefile NFSD: introduce netlink stubs 2023-10-16 12:44:09 -04:00
netlink.c NFSD: introduce netlink stubs 2023-10-16 12:44:09 -04:00
netlink.h NFSD: introduce netlink stubs 2023-10-16 12:44:09 -04:00
netns.h nfsd: make svc_stat per-network namespace instead of global 2024-03-01 09:12:11 -05:00
nfs2acl.c NFSD 6.3 Release Notes 2023-02-22 14:21:40 -08:00
nfs3acl.c NFSD 6.3 Release Notes 2023-02-22 14:21:40 -08:00
nfs3proc.c NFSD 6.7 Release Notes 2023-10-30 10:12:29 -10:00
nfs3xdr.c NFSD: Ensure that xdr_write_pages updates rq_next_page 2023-06-05 09:01:44 -04:00
nfs4acl.c nfsd: inherit required unset default acls from effective set 2023-08-29 17:45:22 -04:00
nfs4callback.c NFSD: Retransmit callbacks after client reconnects 2024-03-01 09:12:13 -05:00
nfs4idmap.c SUNRPC: return proper error from get_expiry() 2023-04-26 09:05:00 -04:00
nfs4layouts.c NFSD: Clean up nfsd4_encode_layoutreturn() 2023-10-16 12:44:29 -04:00
nfs4proc.c nfsd: make all of the nfsd stats per-network namespace 2024-03-01 09:12:10 -05:00
nfs4recover.c nfsd: new Kconfig option for legacy client tracking 2024-01-07 17:54:24 -05:00
nfs4state.c NFSD: Add nfsd_seq4_status trace event 2024-03-01 09:12:13 -05:00
nfs4xdr.c NFSD: fix LISTXATTRS returning more bytes than maxcount 2024-03-01 09:12:07 -05:00
nfscache.c nfsd: make all of the nfsd stats per-network namespace 2024-03-01 09:12:10 -05:00
nfsctl.c nfsd: make svc_stat per-network namespace instead of global 2024-03-01 09:12:11 -05:00
nfsd.h nfsd: remove nfsd_stats, make th_cnt a global counter 2024-03-01 09:12:11 -05:00
nfsfh.c nfsd: make all of the nfsd stats per-network namespace 2024-03-01 09:12:10 -05:00
nfsfh.h NFSD: Add nfsd4_encode_fattr4_change() 2023-10-16 12:44:14 -04:00
nfsproc.c NFSD: Hoist rq_vec preparation into nfsd_read() 2023-06-11 16:37:45 -04:00
nfssvc.c nfsd: make svc_stat per-network namespace instead of global 2024-03-01 09:12:11 -05:00
nfsxdr.c NFSD: Ensure that xdr_write_pages updates rq_next_page 2023-06-05 09:01:44 -04:00
pnfs.h NFSD: Make @gdev parameter of ->encode_getdeviceinfo a const pointer 2023-10-16 12:44:29 -04:00
state.h NFSD: Convert the callback workqueue to use delayed_work 2024-03-01 09:12:12 -05:00
stats.c nfsd: make svc_stat per-network namespace instead of global 2024-03-01 09:12:11 -05:00
stats.h nfsd: make svc_stat per-network namespace instead of global 2024-03-01 09:12:11 -05:00
trace.c
trace.h NFSD: Add nfsd_seq4_status trace event 2024-03-01 09:12:13 -05:00
vfs.c nfsd: make all of the nfsd stats per-network namespace 2024-03-01 09:12:10 -05:00
vfs.h nfsd: use __fput_sync() to avoid delayed closing of files. 2024-03-01 09:12:05 -05:00
xdr3.h SUNRPC: Change return value type of .pc_encode 2021-10-13 11:34:49 -04:00
xdr4.h NFSD: Modify NFSv4 to use nfsd_read_splice_ok() 2024-01-07 17:54:25 -05:00
xdr4cb.h NFSD: Revert 738401a9bd 2023-12-18 11:22:19 -05:00
xdr.h NFSD: prevent underflow in nfssvc_decode_writeargs() 2022-03-15 09:35:56 -04:00