Commit 8c4aae55 authored by Jeff Layton's avatar Jeff Layton Committed by Chuck Lever
Browse files

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



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

Signed-off-by: default avatarJeff Layton <jlayton@kernel.org>
Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
parent 1244f0b2

fs/nfsd/trace.h

+2 −0
Original line number Diff line number Diff line
@@ -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,

fs/nfsd/vfs.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

}