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| author |   Chuck Lever <chuck.lever@oracle.com> | 2018-03-27 10:53:27 -0400 |
|---|---|---|
| committer |   J. Bruce Fields <bfields@redhat.com> | 2018-04-03 15:08:15 -0400 |
| commit | d890be159a71395bd4ceca09233a8a56d7da69ee (patch) | |
| tree | c8e7089ab7e52770d57842ecd189275de08bd789 /fs/nfsd/nfs4proc.c | |
| parent | nfsd: Add "nfsd_" to trace point names (diff) | |
| download | linux-dev-d890be159a71395bd4ceca09233a8a56d7da69ee.tar.xz linux-dev-d890be159a71395bd4ceca09233a8a56d7da69ee.zip | |
nfsd: Add I/O trace points in the NFSv4 write path
NFSv4 write compound processing invokes nfsd_vfs_write directly. The
trace points currently in nfsd_write are not effective for NFSv4
writes.
Move the trace points into the shared nfsd_vfs_write() helper.
After the I/O, we also want to record any local I/O error that
might have occurred, and the total count of bytes that were actually
moved (rather than the requested number).
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd/nfs4proc.c')
| -rw-r--r-- | fs/nfsd/nfs4proc.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 792fbb851046..b773b314f599 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1001,6 +1001,9 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, if (write->wr_offset >= OFFSET_MAX) return nfserr_inval; + cnt = write->wr_buflen; + trace_nfsd_write_start(rqstp, &cstate->current_fh, + write->wr_offset, cnt); status = nfs4_preprocess_stateid_op(rqstp, cstate, &cstate->current_fh, stateid, WR_STATE, &filp, NULL); if (status) { @@ -1008,7 +1011,6 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, return status; } - cnt = write->wr_buflen; write->wr_how_written = write->wr_stable_how; gen_boot_verifier(&write->wr_verifier, SVC_NET(rqstp)); @@ -1021,7 +1023,8 @@ nfsd4_write(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, fput(filp); write->wr_bytes_written = cnt; - + trace_nfsd_write_done(rqstp, &cstate->current_fh, + write->wr_offset, cnt); return status; } |