From 27deebbf6c67f5076cae241e98043aa8b8b57ff8 Mon Sep 17 00:00:00 2001
From: Gaurav <gaurav@gluster.com>
Date: Wed, 27 Apr 2011 03:20:11 +0000
Subject: NFS : Maintain common state for MOUNT1 and MOUNT3.

Signed-off-by: Gaurav <gaurav@gluster.com>
Signed-off-by: Anand Avati <avati@gluster.com>

BUG: 2695 (Mac host showmount -a not working.)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2695
---
 xlators/nfs/server/src/mount3.c | 38 +++++++++++++++++++++++++++++++++-----
 xlators/nfs/server/src/mount3.h |  3 +++
 xlators/nfs/server/src/nfs.c    |  7 +++++++
 xlators/nfs/server/src/nfs.h    |  1 +
 4 files changed, 44 insertions(+), 5 deletions(-)

diff --git a/xlators/nfs/server/src/mount3.c b/xlators/nfs/server/src/mount3.c
index 295b4e830..c358651ff 100644
--- a/xlators/nfs/server/src/mount3.c
+++ b/xlators/nfs/server/src/mount3.c
@@ -1037,7 +1037,7 @@ mnt3svc_dump (rpcsvc_request_t *req)
         sfunc = (mnt3_serializer)xdr_serialize_mountlist;
         mlist = mnt3svc_build_mountlist (ms, &ret);
         arg = mlist;
-        
+
         if (!mlist) {
                 if (ret != 0) {
                         nfs_rpcsvc_request_seterr (req, SYSTEM_ERR);
@@ -1713,6 +1713,28 @@ mnt3_init_state (xlator_t *nfsx)
         return ms;
 }
 
+int
+mount_init_state (xlator_t *nfsx)
+{
+        int              ret = -1;
+        struct nfs_state *nfs = NULL;
+
+        if (!nfsx)
+                goto out;
+
+        nfs = (struct nfs_state *)nfs_state (nfsx);
+        /*Maintaining global state for MOUNT1 and MOUNT3*/
+        nfs->mstate =  mnt3_init_state (nfsx);
+        if (!nfs->mstate) {
+                gf_log (GF_NFS, GF_LOG_ERROR, "Failed to allocate"
+                        "mount state");
+                goto out;
+        }
+        ret = 0;
+out:
+        return ret;
+}
+
 rpcsvc_actor_t  mnt3svc_actors[MOUNT3_PROC_COUNT] = {
         {"NULL", MOUNT3_NULL, mnt3svc_null, NULL, NULL},
         {"MNT", MOUNT3_MNT, mnt3svc_mnt, NULL, NULL},
@@ -1743,12 +1765,15 @@ rpcsvc_program_t *
 mnt3svc_init (xlator_t *nfsx)
 {
         struct mount3_state     *mstate = NULL;
+        struct nfs_state        *nfs = NULL;
 
-        if (!nfsx)
+        if (!nfsx || !nfsx->private)
                 return NULL;
 
+        nfs = (struct nfs_state *)nfsx->private;
+
         gf_log (GF_MNT, GF_LOG_DEBUG, "Initing Mount v3 state");
-        mstate = mnt3_init_state (nfsx);
+        mstate = (struct mount3_state *)nfs->mstate;
         if (!mstate) {
                 gf_log (GF_MNT, GF_LOG_ERROR, "Mount v3 state init failed");
                 goto err;
@@ -1787,12 +1812,15 @@ rpcsvc_program_t *
 mnt1svc_init (xlator_t *nfsx)
 {
         struct mount3_state     *mstate = NULL;
+        struct nfs_state        *nfs = NULL;
 
-        if (!nfsx)
+        if (!nfsx || !nfsx->private)
                 return NULL;
 
+        nfs = (struct nfs_state *)nfsx->private;
+
         gf_log (GF_MNT, GF_LOG_DEBUG, "Initing Mount v1 state");
-        mstate = mnt3_init_state (nfsx);
+        mstate = (struct mount3_state *)nfs->mstate;
         if (!mstate) {
                 gf_log (GF_MNT, GF_LOG_ERROR, "Mount v3 state init failed");
                 goto err;
diff --git a/xlators/nfs/server/src/mount3.h b/xlators/nfs/server/src/mount3.h
index ad4f21c98..fede8122f 100644
--- a/xlators/nfs/server/src/mount3.h
+++ b/xlators/nfs/server/src/mount3.h
@@ -50,6 +50,9 @@ mnt3svc_init (xlator_t *nfsx);
 extern rpcsvc_program_t *
 mnt1svc_init (xlator_t *nfsx);
 
+extern int
+mount_init_state (xlator_t *nfsx);
+
 /* Data structureused to store the list of mounts points currently
  * in use by NFS clients.
  */
diff --git a/xlators/nfs/server/src/nfs.c b/xlators/nfs/server/src/nfs.c
index 081414607..c2dd16b6b 100644
--- a/xlators/nfs/server/src/nfs.c
+++ b/xlators/nfs/server/src/nfs.c
@@ -660,6 +660,13 @@ init (xlator_t *this) {
                 goto err;
         }
 
+        ret = mount_init_state (this);
+        if (ret == -1) {
+                gf_log (GF_NFS, GF_LOG_CRITICAL, "Failed to init Mount"
+                        "state");
+                goto err;
+        }
+
         ret = nfs_init_versions (nfs, this);
         if (ret == -1) {
                 gf_log (GF_NFS, GF_LOG_ERROR, "Failed to initialize "
diff --git a/xlators/nfs/server/src/nfs.h b/xlators/nfs/server/src/nfs.h
index 7b93cd56e..01ad705b6 100644
--- a/xlators/nfs/server/src/nfs.h
+++ b/xlators/nfs/server/src/nfs.h
@@ -62,6 +62,7 @@ struct nfs_initer_list {
 struct nfs_state {
         rpcsvc_t                *rpcsvc;
         struct list_head        versions;
+        struct mount3_state     *mstate;
         struct mem_pool         *foppool;
         unsigned int            memfactor;
         xlator_list_t           *subvols;
-- 
cgit