diff options
| author | Chuck Lever | 2018-03-28 19:29:11 +0200 |
|---|---|---|
| committer | J. Bruce Fields | 2018-04-03 21:08:15 +0200 |
| commit | 87c5942e8fae81ac296267654a047eb2db81592b (patch) | |
| tree | de00193297b93692cfc86f475fe7cb6d6dbdc56a /fs/nfsd/nfs4xdr.c | |
| parent | nfsd: Add I/O trace points in the NFSv4 write path (diff) | |
| download | kernel-qcow2-linux-87c5942e8fae81ac296267654a047eb2db81592b.tar.gz kernel-qcow2-linux-87c5942e8fae81ac296267654a047eb2db81592b.tar.xz kernel-qcow2-linux-87c5942e8fae81ac296267654a047eb2db81592b.zip | |
nfsd: Add I/O trace points in the NFSv4 read proc
NFSv4 read compound processing invokes nfsd_splice_read and
nfs_readv directly, so the trace points currently in nfsd_read are
not invoked for NFSv4 reads.
Move the NFSD READ trace points to common helpers so that NFSv4
reads are captured.
Also, record any local I/O error that occurs, the total count of
bytes that were actually returned, and whether splice or vectored
read was used.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4xdr.c')
| -rw-r--r-- | fs/nfsd/nfs4xdr.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 9f8ef2c6e508..dd72cdf3662e 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -3427,8 +3427,9 @@ static __be32 nfsd4_encode_splice_read( return nfserr_resource; len = maxcount; - nfserr = nfsd_splice_read(read->rd_rqstp, file, - read->rd_offset, &maxcount); + nfserr = nfsd_splice_read(read->rd_rqstp, read->rd_fhp, + file, read->rd_offset, &maxcount); + read->rd_length = maxcount; if (nfserr) { /* * nfsd_splice_actor may have already messed with the @@ -3511,8 +3512,9 @@ static __be32 nfsd4_encode_readv(struct nfsd4_compoundres *resp, read->rd_vlen = v; len = maxcount; - nfserr = nfsd_readv(file, read->rd_offset, resp->rqstp->rq_vec, - read->rd_vlen, &maxcount); + nfserr = nfsd_readv(resp->rqstp, read->rd_fhp, file, read->rd_offset, + resp->rqstp->rq_vec, read->rd_vlen, &maxcount); + read->rd_length = maxcount; if (nfserr) return nfserr; xdr_truncate_encode(xdr, starting_len + 8 + ((maxcount+3)&~3)); |