From: NeilBrown <neilb@cse.unsw.edu.au>
To: Andrew Morton <akpm@osdl.org>
Cc: nfs@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: [PATCH kNFSd 003 of 3] Provide missing NFSv2 part of patch for checking vfs_getattr.
Date: Fri, 13 Jan 2006 14:14:28 +1100 [thread overview]
Message-ID: <1060113031428.4672@cse.unsw.edu.au> (raw)
In-Reply-To: 20060113141059.4573.patches@notabene
From: David Shaw <dshaw@jabberwocky.com>
A recent patch which checked the return status of vfs_getattr in nfsd,
completely missed the nfsproc.c (NFSv2) part. Here is it.
This patch moved the call to vfs_getattr from the xdr encoding (at
which point it is too late to return an error) to the call handling.
This means several calls to vfs_getattr are needed in nfsproc.c. Many
are encapsulated in nfsd_return_attrs and nfsd_return_dirop.
Signed-off-by: Neil Brown <neilb@suse.de>
### Diffstat output
./fs/nfsd/nfsproc.c | 37 ++++++++++++++++++++++++++++++-------
1 file changed, 30 insertions(+), 7 deletions(-)
diff ./fs/nfsd/nfsproc.c~current~ ./fs/nfsd/nfsproc.c
--- ./fs/nfsd/nfsproc.c~current~ 2006-01-13 13:42:09.000000000 +1100
+++ ./fs/nfsd/nfsproc.c 2006-01-13 13:42:14.000000000 +1100
@@ -36,6 +36,22 @@ nfsd_proc_null(struct svc_rqst *rqstp, v
return nfs_ok;
}
+static int
+nfsd_return_attrs(int err, struct nfsd_attrstat *resp)
+{
+ if (err) return err;
+ return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
+ resp->fh.fh_dentry,
+ &resp->stat));
+}
+static int
+nfsd_return_dirop(int err, struct nfsd_diropres *resp)
+{
+ if (err) return err;
+ return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
+ resp->fh.fh_dentry,
+ &resp->stat));
+}
/*
* Get a file's attributes
* N.B. After this call resp->fh needs an fh_put
@@ -44,10 +60,12 @@ static int
nfsd_proc_getattr(struct svc_rqst *rqstp, struct nfsd_fhandle *argp,
struct nfsd_attrstat *resp)
{
+ int nfserr;
dprintk("nfsd: GETATTR %s\n", SVCFH_fmt(&argp->fh));
fh_copy(&resp->fh, &argp->fh);
- return fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
+ nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
+ return nfsd_return_attrs(nfserr, resp);
}
/*
@@ -58,12 +76,14 @@ static int
nfsd_proc_setattr(struct svc_rqst *rqstp, struct nfsd_sattrargs *argp,
struct nfsd_attrstat *resp)
{
+ int nfserr;
dprintk("nfsd: SETATTR %s, valid=%x, size=%ld\n",
SVCFH_fmt(&argp->fh),
argp->attrs.ia_valid, (long) argp->attrs.ia_size);
fh_copy(&resp->fh, &argp->fh);
- return nfsd_setattr(rqstp, &resp->fh, &argp->attrs,0, (time_t)0);
+ nfserr = nfsd_setattr(rqstp, &resp->fh, &argp->attrs,0, (time_t)0);
+ return nfsd_return_attrs(nfserr, resp);
}
/*
@@ -86,7 +106,7 @@ nfsd_proc_lookup(struct svc_rqst *rqstp,
&resp->fh);
fh_put(&argp->fh);
- return nfserr;
+ return nfsd_return_dirop(nfserr, resp);
}
/*
@@ -142,7 +162,10 @@ nfsd_proc_read(struct svc_rqst *rqstp, s
argp->vec, argp->vlen,
&resp->count);
- return nfserr;
+ if (nfserr) return nfserr;
+ return nfserrno(vfs_getattr(resp->fh.fh_export->ex_mnt,
+ resp->fh.fh_dentry,
+ &resp->stat));
}
/*
@@ -165,7 +188,7 @@ nfsd_proc_write(struct svc_rqst *rqstp,
argp->vec, argp->vlen,
argp->len,
&stable);
- return nfserr;
+ return nfsd_return_attrs(nfserr, resp);
}
/*
@@ -322,7 +345,7 @@ out_unlock:
done:
fh_put(dirfhp);
- return nfserr;
+ return nfsd_return_dirop(nfserr, resp);
}
static int
@@ -425,7 +448,7 @@ nfsd_proc_mkdir(struct svc_rqst *rqstp,
nfserr = nfsd_create(rqstp, &argp->fh, argp->name, argp->len,
&argp->attrs, S_IFDIR, 0, &resp->fh);
fh_put(&argp->fh);
- return nfserr;
+ return nfsd_return_dirop(nfserr, resp);
}
/*
prev parent reply other threads:[~2006-01-13 3:14 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-13 3:14 [PATCH kNFSd 000 of 3] Introduction NeilBrown
2006-01-13 3:14 ` [PATCH kNFSd 001 of 3] semaphore to mutex conversion NeilBrown
2006-01-13 3:14 ` [PATCH kNFSd 002 of 3] Fix some more errno/nfserr confusion in vfs.c NeilBrown
2006-01-13 3:14 ` NeilBrown [this message]
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