path: root/include/linux/nfs_xdr.h
diff options
authorDavid Howells <dhowells@redhat.com>2019-12-10 07:31:13 -0500
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2020-01-15 10:15:17 -0500
commitf2aedb713c284429987dc66c7aaf38decfc8da2a (patch)
tree01978da583f0b64bb524dde8825dbaeb0934c615 /include/linux/nfs_xdr.h
parentNFS: Convert mount option parsing to use functionality from fs_parser.h (diff)
NFS: Add fs_context support.
Add filesystem context support to NFS, parsing the options in advance and attaching the information to struct nfs_fs_context. The highlights are: (*) Merge nfs_mount_info and nfs_clone_mount into nfs_fs_context. This structure represents NFS's superblock config. (*) Make use of the VFS's parsing support to split comma-separated lists (*) Pin the NFS protocol module in the nfs_fs_context. (*) Attach supplementary error information to fs_context. This has the downside that these strings must be static and can't be formatted. (*) Remove the auxiliary file_system_type structs since the information necessary can be conveyed in the nfs_fs_context struct instead. (*) Root mounts are made by duplicating the config for the requested mount so as to have the same parameters. Submounts pick up their parameters from the parent superblock. [AV -- retrans is u32, not string] [SM -- Renamed cfg to ctx in a few functions in an earlier patch] [SM -- Moved fs_context mount option parsing to an earlier patch] [SM -- Moved fs_context error logging to a later patch] [SM -- Fixed printks in nfs4_try_get_tree() and nfs4_get_referral_tree()] [SM -- Added is_remount_fc() helper] [SM -- Deferred some refactoring to a later patch] [SM -- Fixed referral mounts, which were broken in the original patch] [SM -- Fixed leak of nfs_fattr when fs_context is freed] Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Scott Mayhew <smayhew@redhat.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'include/linux/nfs_xdr.h')
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 17527f6e6360..574741d5418d 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1639,6 +1639,7 @@ struct nfs_subversion;
struct nfs_mount_info;
struct nfs_client_initdata;
struct nfs_pageio_descriptor;
+struct fs_context;
* RPC procedure vector for NFSv2/NFSv3 demuxing
@@ -1653,9 +1654,8 @@ struct nfs_rpc_ops {
int (*getroot) (struct nfs_server *, struct nfs_fh *,
struct nfs_fsinfo *);
- struct vfsmount *(*submount) (struct nfs_server *, struct dentry *,
- struct nfs_fh *, struct nfs_fattr *);
- struct dentry *(*try_mount) (int, const char *, struct nfs_mount_info *);
+ int (*submount) (struct fs_context *, struct nfs_server *);
+ int (*try_get_tree) (struct fs_context *);
int (*getattr) (struct nfs_server *, struct nfs_fh *,
struct nfs_fattr *, struct nfs4_label *,
struct inode *);