[PATCH] knfsd: nfsd4: fslocations data structures

Define FS locations structures, some functions to manipulate them, and add
code to parse FS locations in downcall and add to the exports structure.

[bfields@fieldses.org: bunch of fixes and cleanups]
Signed-off-by: Manoj Naik <manoj@almaden.ibm.com>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/include/linux/nfsd/export.h b/include/linux/nfsd/export.h
index 47d96684b611..6e78ea969f49 100644
--- a/include/linux/nfsd/export.h
+++ b/include/linux/nfsd/export.h
@@ -45,6 +45,25 @@
 
 #ifdef __KERNEL__
 
+/*
+ * FS Locations
+ */
+
+#define MAX_FS_LOCATIONS        128
+
+struct nfsd4_fs_location {
+        char *hosts; /* colon separated list of hosts */
+        char *path;  /* slash separated list of path components */
+};
+
+struct nfsd4_fs_locations {
+        uint32_t locations_count;
+        struct nfsd4_fs_location *locations;
+/* If we're not actually serving this data ourselves (only providing a
+ * list of replicas that do serve it) then we set "migrated": */
+        int migrated;
+};
+
 struct svc_export {
         struct cache_head       h;
         struct auth_domain *    ex_client;
@@ -55,6 +74,7 @@ struct svc_export {
         uid_t                   ex_anon_uid;
         gid_t                   ex_anon_gid;
         int                     ex_fsid;
+        struct nfsd4_fs_locations ex_fslocs;
 };
 
 /* an "export key" (expkey) maps a filehandlefragement to an