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| author | Chuck Lever <chuck.lever@oracle.com> | 2022-09-09 01:14:00 +0300 |
|---|---|---|
| committer | Chuck Lever <chuck.lever@oracle.com> | 2022-09-26 21:02:32 +0300 |
| commit | c035362eb935fe9381d9d1cc453bc2a37460e24c (patch) | |
| tree | dd9f95c0dd30401bfcc29d7cd7011573e05fe0ea /fs/nfsd/trace.h | |
| parent | 1035d65446a018ca2dd179e29a2fcd6d29057781 (diff) | |
| download | linux-c035362eb935fe9381d9d1cc453bc2a37460e24c.tar.xz | |
NFSD: Add a mechanism to wait for a DELEGRETURN
Subsequent patches will use this mechanism to wake up an operation
that is waiting for a client to return a delegation.
The new tracepoint records whether the wait timed out or was
properly awoken by the expected DELEGRETURN:
nfsd-1155 [002] 83799.493199: nfsd_delegret_wakeup: xid=0x14b7d6ef fh_hash=0xf6826792 (timed out)
Suggested-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Diffstat (limited to 'fs/nfsd/trace.h')
| -rw-r--r-- | fs/nfsd/trace.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h index ec8e08315779..06a96e955bd0 100644 --- a/fs/nfsd/trace.h +++ b/fs/nfsd/trace.h @@ -538,6 +538,29 @@ DEFINE_NFSD_COPY_ERR_EVENT(clone_file_range_err); #include "filecache.h" #include "vfs.h" +TRACE_EVENT(nfsd_delegret_wakeup, + TP_PROTO( + const struct svc_rqst *rqstp, + const struct inode *inode, + long timeo + ), + TP_ARGS(rqstp, inode, timeo), + TP_STRUCT__entry( + __field(u32, xid) + __field(const void *, inode) + __field(long, timeo) + ), + TP_fast_assign( + __entry->xid = be32_to_cpu(rqstp->rq_xid); + __entry->inode = inode; + __entry->timeo = timeo; + ), + TP_printk("xid=0x%08x inode=%p%s", + __entry->xid, __entry->inode, + __entry->timeo == 0 ? " (timed out)" : "" + ) +); + DECLARE_EVENT_CLASS(nfsd_stateid_class, TP_PROTO(stateid_t *stp), TP_ARGS(stp), |