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authorChristoph Hellwig <hch@infradead.org>2013-12-20 17:16:55 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2014-01-26 17:26:41 +0400
commit4ac7249ea5a0ceef9f8269f63f33cc873c3fac61 (patch)
treef12c9d14720d981270c45b207748e215f7a3dca3 /fs/nfsd/nfs2acl.c
parentfeda821e76f3bbbba4bd54d30b4d4005a7848aa5 (diff)
downloadlinux-4ac7249ea5a0ceef9f8269f63f33cc873c3fac61.tar.xz
nfsd: use get_acl and ->set_acl
Remove the boilerplate code to marshall and unmarhall ACL objects into xattrs and operate on the posix_acl objects directly. Also move all the ACL handling code into nfs?acl.c where it belongs. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/nfsd/nfs2acl.c')
-rw-r--r--fs/nfsd/nfs2acl.c72
1 files changed, 40 insertions, 32 deletions
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
index 95d76dc6c5da..11c1fba29312 100644
--- a/fs/nfsd/nfs2acl.c
+++ b/fs/nfsd/nfs2acl.c
@@ -30,8 +30,9 @@ nfsacld_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp,
struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp)
{
- svc_fh *fh;
struct posix_acl *acl;
+ struct inode *inode;
+ svc_fh *fh;
__be32 nfserr = 0;
dprintk("nfsd: GETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
@@ -41,6 +42,8 @@ static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp,
if (nfserr)
RETURN_STATUS(nfserr);
+ inode = fh->fh_dentry->d_inode;
+
if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
RETURN_STATUS(nfserr_inval);
resp->mask = argp->mask;
@@ -50,21 +53,13 @@ static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp,
goto fail;
if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
- acl = nfsd_get_posix_acl(fh, ACL_TYPE_ACCESS);
+ acl = get_acl(inode, ACL_TYPE_ACCESS);
if (IS_ERR(acl)) {
- int err = PTR_ERR(acl);
-
- if (err == -ENODATA || err == -EOPNOTSUPP)
- acl = NULL;
- else {
- nfserr = nfserrno(err);
- goto fail;
- }
+ nfserr = nfserrno(PTR_ERR(acl));
+ goto fail;
}
if (acl == NULL) {
/* Solaris returns the inode's minimum ACL. */
-
- struct inode *inode = fh->fh_dentry->d_inode;
acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
}
resp->acl_access = acl;
@@ -72,17 +67,10 @@ static __be32 nfsacld_proc_getacl(struct svc_rqst * rqstp,
if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) {
/* Check how Solaris handles requests for the Default ACL
of a non-directory! */
-
- acl = nfsd_get_posix_acl(fh, ACL_TYPE_DEFAULT);
+ acl = get_acl(inode, ACL_TYPE_DEFAULT);
if (IS_ERR(acl)) {
- int err = PTR_ERR(acl);
-
- if (err == -ENODATA || err == -EOPNOTSUPP)
- acl = NULL;
- else {
- nfserr = nfserrno(err);
- goto fail;
- }
+ nfserr = nfserrno(PTR_ERR(acl));
+ goto fail;
}
resp->acl_default = acl;
}
@@ -103,31 +91,51 @@ static __be32 nfsacld_proc_setacl(struct svc_rqst * rqstp,
struct nfsd3_setaclargs *argp,
struct nfsd_attrstat *resp)
{
+ struct inode *inode;
svc_fh *fh;
__be32 nfserr = 0;
+ int error;
dprintk("nfsd: SETACL(2acl) %s\n", SVCFH_fmt(&argp->fh));
fh = fh_copy(&resp->fh, &argp->fh);
nfserr = fh_verify(rqstp, &resp->fh, 0, NFSD_MAY_SATTR);
+ if (nfserr)
+ goto out;
- if (!nfserr) {
- nfserr = nfserrno( nfsd_set_posix_acl(
- fh, ACL_TYPE_ACCESS, argp->acl_access) );
- }
- if (!nfserr) {
- nfserr = nfserrno( nfsd_set_posix_acl(
- fh, ACL_TYPE_DEFAULT, argp->acl_default) );
- }
- if (!nfserr) {
- nfserr = fh_getattr(fh, &resp->stat);
+ inode = fh->fh_dentry->d_inode;
+ if (!IS_POSIXACL(inode) || !inode->i_op->set_acl) {
+ error = -EOPNOTSUPP;
+ goto out_errno;
}
+ error = fh_want_write(fh);
+ if (error)
+ goto out_errno;
+
+ error = inode->i_op->set_acl(inode, argp->acl_access, ACL_TYPE_ACCESS);
+ if (error)
+ goto out_drop_write;
+ error = inode->i_op->set_acl(inode, argp->acl_default,
+ ACL_TYPE_DEFAULT);
+ if (error)
+ goto out_drop_write;
+
+ fh_drop_write(fh);
+
+ nfserr = fh_getattr(fh, &resp->stat);
+
+out:
/* argp->acl_{access,default} may have been allocated in
nfssvc_decode_setaclargs. */
posix_acl_release(argp->acl_access);
posix_acl_release(argp->acl_default);
return nfserr;
+out_drop_write:
+ fh_drop_write(fh);
+out_errno:
+ nfserr = nfserrno(error);
+ goto out;
}
/*