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authorNeilBrown <neilb@suse.com>2018-12-03 11:30:31 +1100
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2018-12-19 13:52:46 -0500
commita52458b48af142bcc2b72fe810c0db20cfae7fdd (patch)
treecb77d59d5fdf3d50e69500b8cc7cba1c7199272f /fs/nfs/unlink.c
parent684f39b4cf5186bb0660e686f94296688b24fb32 (diff)
NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.
SUNRPC has two sorts of credentials, both of which appear as "struct rpc_cred". There are "generic credentials" which are supplied by clients such as NFS and passed in 'struct rpc_message' to indicate which user should be used to authorize the request, and there are low-level credentials such as AUTH_NULL, AUTH_UNIX, AUTH_GSS which describe the credential to be sent over the wires. This patch replaces all the generic credentials by 'struct cred' pointers - the credential structure used throughout Linux. For machine credentials, there is a special 'struct cred *' pointer which is statically allocated and recognized where needed as having a special meaning. A look-up of a low-level cred will map this to a machine credential. Signed-off-by: NeilBrown <neilb@suse.com> Acked-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'fs/nfs/unlink.c')
-rw-r--r--fs/nfs/unlink.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index fd61bf0fce63..a227ab7d6891 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -31,7 +31,7 @@
static void
nfs_free_unlinkdata(struct nfs_unlinkdata *data)
{
- put_rpccred(data->cred);
+ put_cred(data->cred);
kfree(data->args.name.name);
kfree(data);
}
@@ -177,11 +177,7 @@ nfs_async_unlink(struct dentry *dentry, const struct qstr *name)
goto out_free;
data->args.name.len = name->len;
- data->cred = rpc_lookup_cred();
- if (IS_ERR(data->cred)) {
- status = PTR_ERR(data->cred);
- goto out_free_name;
- }
+ data->cred = get_current_cred();
data->res.dir_attr = &data->dir_attr;
init_waitqueue_head(&data->wq);
@@ -202,8 +198,7 @@ nfs_async_unlink(struct dentry *dentry, const struct qstr *name)
return 0;
out_unlock:
spin_unlock(&dentry->d_lock);
- put_rpccred(data->cred);
-out_free_name:
+ put_cred(data->cred);
kfree(data->args.name.name);
out_free:
kfree(data);
@@ -307,7 +302,7 @@ static void nfs_async_rename_release(void *calldata)
iput(data->old_dir);
iput(data->new_dir);
nfs_sb_deactive(sb);
- put_rpccred(data->cred);
+ put_cred(data->cred);
kfree(data);
}
@@ -352,7 +347,7 @@ nfs_async_rename(struct inode *old_dir, struct inode *new_dir,
return ERR_PTR(-ENOMEM);
task_setup_data.callback_data = data;
- data->cred = rpc_lookup_cred();
+ data->cred = get_current_cred();
if (IS_ERR(data->cred)) {
struct rpc_task *task = ERR_CAST(data->cred);
kfree(data);