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-rw-r--r--fs/nfsd/vfs.c79
-rw-r--r--fs/nfsd/vfs.h2
2 files changed, 44 insertions, 37 deletions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index bbed7a986784..83c989a5d6f3 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1181,14 +1181,26 @@ out:
return err;
}
-static __be32
-nfsd_create_setattr(struct svc_rqst *rqstp, struct svc_fh *resfhp,
- struct iattr *iap)
+/**
+ * nfsd_create_setattr - Set a created file's attributes
+ * @rqstp: RPC transaction being executed
+ * @fhp: NFS filehandle of parent directory
+ * @resfhp: NFS filehandle of new object
+ * @iap: requested attributes of new object
+ *
+ * Returns nfs_ok on success, or an nfsstat in network byte order.
+ */
+__be32
+nfsd_create_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp,
+ struct svc_fh *resfhp, struct iattr *iap)
{
+ __be32 status;
+
/*
- * Mode has already been set earlier in create:
+ * Mode has already been set by file creation.
*/
iap->ia_valid &= ~ATTR_MODE;
+
/*
* Setting uid/gid works only for root. Irix appears to
* send along the gid on create when it tries to implement
@@ -1196,10 +1208,31 @@ nfsd_create_setattr(struct svc_rqst *rqstp, struct svc_fh *resfhp,
*/
if (!uid_eq(current_fsuid(), GLOBAL_ROOT_UID))
iap->ia_valid &= ~(ATTR_UID|ATTR_GID);
+
+ /*
+ * Callers expect new file metadata to be committed even
+ * if the attributes have not changed.
+ */
if (iap->ia_valid)
- return nfsd_setattr(rqstp, resfhp, iap, 0, (time64_t)0);
- /* Callers expect file metadata to be committed here */
- return nfserrno(commit_metadata(resfhp));
+ status = nfsd_setattr(rqstp, resfhp, iap, 0, (time64_t)0);
+ else
+ status = nfserrno(commit_metadata(resfhp));
+
+ /*
+ * Transactional filesystems had a chance to commit changes
+ * for both parent and child simultaneously making the
+ * following commit_metadata a noop in many cases.
+ */
+ if (!status)
+ status = nfserrno(commit_metadata(fhp));
+
+ /*
+ * Update the new filehandle to pick up the new attributes.
+ */
+ if (!status)
+ status = fh_update(resfhp);
+
+ return status;
}
/* HPUX client sometimes creates a file in mode 000, and sets size to 0.
@@ -1226,7 +1259,6 @@ nfsd_create_locked(struct svc_rqst *rqstp, struct svc_fh *fhp,
struct dentry *dentry, *dchild;
struct inode *dirp;
__be32 err;
- __be32 err2;
int host_err;
dentry = fhp->fh_dentry;
@@ -1299,22 +1331,8 @@ nfsd_create_locked(struct svc_rqst *rqstp, struct svc_fh *fhp,
if (host_err < 0)
goto out_nfserr;
- err = nfsd_create_setattr(rqstp, resfhp, iap);
+ err = nfsd_create_setattr(rqstp, fhp, resfhp, iap);
- /*
- * nfsd_create_setattr already committed the child. Transactional
- * filesystems had a chance to commit changes for both parent and
- * child simultaneously making the following commit_metadata a
- * noop.
- */
- err2 = nfserrno(commit_metadata(fhp));
- if (err2)
- err = err2;
- /*
- * Update the file handle to get the new inode info.
- */
- if (!err)
- err = fh_update(resfhp);
out:
dput(dchild);
return err;
@@ -1505,20 +1523,7 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
}
set_attr:
- err = nfsd_create_setattr(rqstp, resfhp, iap);
-
- /*
- * nfsd_create_setattr already committed the child
- * (and possibly also the parent).
- */
- if (!err)
- err = nfserrno(commit_metadata(fhp));
-
- /*
- * Update the filehandle to get the new inode info.
- */
- if (!err)
- err = fh_update(resfhp);
+ err = nfsd_create_setattr(rqstp, fhp, resfhp, iap);
out:
fh_unlock(fhp);
diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h
index ccb87b2864f6..1f32a83456b0 100644
--- a/fs/nfsd/vfs.h
+++ b/fs/nfsd/vfs.h
@@ -69,6 +69,8 @@ __be32 nfsd_create(struct svc_rqst *, struct svc_fh *,
char *name, int len, struct iattr *attrs,
int type, dev_t rdev, struct svc_fh *res);
__be32 nfsd_access(struct svc_rqst *, struct svc_fh *, u32 *, u32 *);
+__be32 nfsd_create_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp,
+ struct svc_fh *resfhp, struct iattr *iap);
__be32 do_nfsd_create(struct svc_rqst *, struct svc_fh *,
char *name, int len, struct iattr *attrs,
struct svc_fh *res, int createmode,