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NFSD: cleanup dead codes and values in nfsd_write 

This is just cleanup, no change in functionality.

Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Kinglong Mee 2016-12-31 21:00:13 +08:00 committed by J. Bruce Fields
parent 54bbb7d206
commit 52e380e049
4 changed files with 18 additions and 36 deletions
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8
fs/nfsd/nfs3proc.c
View File

@ -193,11 +193,9 @@ nfsd3_proc_write(struct svc_rqst *rqstp, struct nfsd3_writeargs *argp,
fh_copy(&resp->fh, &argp->fh);
resp->committed = argp->stable;
nfserr = nfsd_write(rqstp, &resp->fh, NULL,
argp->offset,
rqstp->rq_vec, argp->vlen,
&cnt,
resp->committed);
nfserr = nfsd_write(rqstp, &resp->fh, argp->offset,
rqstp->rq_vec, argp->vlen,
&cnt, resp->committed);
resp->count = cnt;
RETURN_STATUS(nfserr);
}

7
fs/nfsd/nfsproc.c
View File

@ -210,11 +210,8 @@ nfsd_proc_write(struct svc_rqst *rqstp, struct nfsd_writeargs *argp,
SVCFH_fmt(&argp->fh),
argp->len, argp->offset);
nfserr = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh), NULL,
argp->offset,
rqstp->rq_vec, argp->vlen,
&cnt,
NFS_DATA_SYNC);
nfserr = nfsd_write(rqstp, fh_copy(&resp->fh, &argp->fh), argp->offset,
rqstp->rq_vec, argp->vlen, &cnt, NFS_DATA_SYNC);
return nfsd_return_attrs(nfserr, resp);
}

35
fs/nfsd/vfs.c
View File

@ -1011,35 +1011,22 @@ __be32 nfsd_read(struct svc_rqst *rqstp, struct svc_fh *fhp,
* N.B. After this call fhp needs an fh_put
*/
__be32
nfsd_write(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file *file,
loff_t offset, struct kvec *vec, int vlen, unsigned long *cnt,
int stable)
nfsd_write(struct svc_rqst *rqstp, struct svc_fh *fhp, loff_t offset,
struct kvec *vec, int vlen, unsigned long *cnt, int stable)
{
__be32 err = 0;
struct file *file = NULL;
__be32 err = 0;
trace_write_start(rqstp, fhp, offset, vlen);
if (file) {
err = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry,
NFSD_MAY_WRITE|NFSD_MAY_OWNER_OVERRIDE);
if (err)
goto out;
trace_write_opened(rqstp, fhp, offset, vlen);
err = nfsd_vfs_write(rqstp, fhp, file, offset, vec, vlen, cnt,
stable);
trace_write_io_done(rqstp, fhp, offset, vlen);
} else {
err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_WRITE, &file);
if (err)
goto out;
err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_WRITE, &file);
if (err)
goto out;
trace_write_opened(rqstp, fhp, offset, vlen);
if (cnt)
err = nfsd_vfs_write(rqstp, fhp, file, offset, vec, vlen,
cnt, stable);
trace_write_io_done(rqstp, fhp, offset, vlen);
fput(file);
}
trace_write_opened(rqstp, fhp, offset, vlen);
err = nfsd_vfs_write(rqstp, fhp, file, offset, vec, vlen, cnt, stable);
trace_write_io_done(rqstp, fhp, offset, vlen);
fput(file);
out:
trace_write_done(rqstp, fhp, offset, vlen);
return err;

4
fs/nfsd/vfs.h
View File

@ -83,8 +83,8 @@ __be32 nfsd_readv(struct file *, loff_t, struct kvec *, int,
unsigned long *);
__be32 nfsd_read(struct svc_rqst *, struct svc_fh *,
loff_t, struct kvec *, int, unsigned long *);
__be32 nfsd_write(struct svc_rqst *, struct svc_fh *,struct file *,
loff_t, struct kvec *,int, unsigned long *, int);
__be32 nfsd_write(struct svc_rqst *, struct svc_fh *, loff_t,
struct kvec *, int, unsigned long *, int);
__be32 nfsd_vfs_write(struct svc_rqst *rqstp, struct svc_fh *fhp,
struct file *file, loff_t offset,
struct kvec *vec, int vlen, unsigned long *cnt,