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nfsd: add commit start/done tracepoints around nfsd_commit()

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Very useful for gauging how long the vfs_fsync_range() takes.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Jeff Layton 2025-04-09 10:32:23 -04:00 committed by Chuck Lever
parent 1244f0b2c3
commit 8c4aae5582
2 changed files with 5 additions and 0 deletions
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2
fs/nfsd/trace.h
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@ -451,6 +451,8 @@ DEFINE_NFSD_IO_EVENT(write_start);
DEFINE_NFSD_IO_EVENT(write_opened);
DEFINE_NFSD_IO_EVENT(write_io_done);
DEFINE_NFSD_IO_EVENT(write_done);
DEFINE_NFSD_IO_EVENT(commit_start);
DEFINE_NFSD_IO_EVENT(commit_done);
DECLARE_EVENT_CLASS(nfsd_err_class,
TP_PROTO(struct svc_rqst *rqstp,

3
fs/nfsd/vfs.c
View File

@ -1343,6 +1343,8 @@ nfsd_commit(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfsd_file *nf,
loff_t start, end;
struct nfsd_net *nn;
trace_nfsd_commit_start(rqstp, fhp, offset, count);
/*
* Convert the client-provided (offset, count) range to a
* (start, end) range. If the client-provided range falls
@ -1381,6 +1383,7 @@ nfsd_commit(struct svc_rqst *rqstp, struct svc_fh *fhp, struct nfsd_file *nf,
} else
nfsd_copy_write_verifier(verf, nn);
trace_nfsd_commit_done(rqstp, fhp, offset, count);
return err;
}