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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/proc.c
parent684f39b4cf5186bb0660e686f94296688b24fb32 (diff)
downloadlinux-a52458b48af142bcc2b72fe810c0db20cfae7fdd.tar.bz2
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/proc.c')
-rw-r--r--fs/nfs/proc.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index 1ba717bd20c4..5552fa8b6e12 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -500,25 +500,18 @@ nfs_proc_readdir(struct dentry *dentry, const struct cred *cred,
.count = count,
.pages = pages,
};
- struct auth_cred acred = {
- .cred = cred,
- };
struct rpc_message msg = {
.rpc_proc = &nfs_procedures[NFSPROC_READDIR],
.rpc_argp = &arg,
- .rpc_cred = rpc_lookup_generic_cred(&acred,
- 0, GFP_NOFS),
+ .rpc_cred = cred,
};
int status;
dprintk("NFS call readdir %d\n", (unsigned int)cookie);
- if (!msg.rpc_cred)
- return -ENOMEM;
status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
nfs_invalidate_atime(dir);
- put_rpccred(msg.rpc_cred);
dprintk("NFS reply readdir: %d\n", status);
return status;
}