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NFS: Add trace events to report non-zero NFS status codes

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These can help field troubleshooting without needing the overhead
of a full network capture (ie, tcpdump).

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever
2019-02-11 11:24:26 -05:00
committed by Anna Schumaker
parent eb72f484a5
commit f23f658404
6 changed files with 133 additions and 4 deletions
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fs/nfs/nfstrace.c
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@@ -11,3 +11,4 @@
EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_fsync_enter);
EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_fsync_exit);
EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_xdr_status);