[GFS2] NFS update

Update the NFS filehandles so that they contain the file type.

Signed-off-by: Wendy Cheng <wcheng@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

2 files changed, 24 insertions, 12 deletions

diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c
index eacc1c092f91..6354f4799e68 100644
--- a/fs/gfs2/ops_export.c
+++ b/fs/gfs2/ops_export.c
@@ -34,30 +34,34 @@ static struct dentry *gfs2_decode_fh(struct super_block *sb,
                                                        struct dentry *dentry),
                                      void *context)
 {
-        struct gfs2_inum this, parent;
+        struct gfs2_fh_obj fh_obj;
+        struct gfs2_inum *this, parent;
 
         if (fh_type != fh_len)
                 return NULL;
 
+        this            = &fh_obj.this;
+        fh_obj.imode    = DT_UNKNOWN;
         memset(&parent, 0, sizeof(struct gfs2_inum));
 
         switch (fh_type) {
-        case 8:
+        case 10:
                 parent.no_formal_ino = ((uint64_t)be32_to_cpu(fh[4])) << 32;
                 parent.no_formal_ino |= be32_to_cpu(fh[5]);
                 parent.no_addr = ((uint64_t)be32_to_cpu(fh[6])) << 32;
                 parent.no_addr |= be32_to_cpu(fh[7]);
+                fh_obj.imode = be32_to_cpu(fh[8]);
         case 4:
-                this.no_formal_ino = ((uint64_t)be32_to_cpu(fh[0])) << 32;
-                this.no_formal_ino |= be32_to_cpu(fh[1]);
-                this.no_addr = ((uint64_t)be32_to_cpu(fh[2])) << 32;
-                this.no_addr |= be32_to_cpu(fh[3]);
+                this->no_formal_ino = ((uint64_t)be32_to_cpu(fh[0])) << 32;
+                this->no_formal_ino |= be32_to_cpu(fh[1]);
+                this->no_addr = ((uint64_t)be32_to_cpu(fh[2])) << 32;
+                this->no_addr |= be32_to_cpu(fh[3]);
                 break;
         default:
                 return NULL;
         }
 
-        return gfs2_export_ops.find_exported_dentry(sb, &this, &parent,
+        return gfs2_export_ops.find_exported_dentry(sb, &fh_obj, &parent,
                                                     acceptable, context);
 }
 
@@ -68,7 +72,7 @@ static int gfs2_encode_fh(struct dentry *dentry, __u32 *fh, int *len,
         struct super_block *sb = inode->i_sb;
         struct gfs2_inode *ip = GFS2_I(inode);
 
-        if (*len < 4 || (connectable && *len < 8))
+        if (*len < 4 || (connectable && *len < 10))
                 return 255;
 
         fh[0] = ip->i_num.no_formal_ino >> 32;
@@ -98,7 +102,10 @@ static int gfs2_encode_fh(struct dentry *dentry, __u32 *fh, int *len,
         fh[6] = cpu_to_be32(fh[6]);
         fh[7] = ip->i_num.no_addr & 0xFFFFFFFF;
         fh[7] = cpu_to_be32(fh[7]);
-        *len = 8;
+
+        fh[8]  = cpu_to_be32(inode->i_mode);
+        fh[9]  = 0;     /* pad to double word */
+        *len = 10;
 
         iput(inode);
 
@@ -186,10 +193,11 @@ static struct dentry *gfs2_get_parent(struct dentry *child)
         return dentry;
 }
 
-static struct dentry *gfs2_get_dentry(struct super_block *sb, void *inum_p)
+static struct dentry *gfs2_get_dentry(struct super_block *sb, void *inum_obj)
 {
         struct gfs2_sbd *sdp = sb->s_fs_info;
-        struct gfs2_inum *inum = inum_p;
+        struct gfs2_fh_obj *fh_obj = (struct gfs2_fh_obj *)inum_obj;
+        struct gfs2_inum *inum = &fh_obj->this;
         struct gfs2_holder i_gh, ri_gh, rgd_gh;
         struct gfs2_rgrpd *rgd;
         struct inode *inode;
@@ -233,7 +241,7 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb, void *inum_p)
         gfs2_glock_dq_uninit(&rgd_gh);
         gfs2_glock_dq_uninit(&ri_gh);
 
-        inode = gfs2_inode_lookup(sb, inum, DT_UNKNOWN);
+        inode = gfs2_inode_lookup(sb, inum, fh_obj->imode);
         if (!inode)
                 goto fail;
         if (IS_ERR(inode)) {
diff --git a/fs/gfs2/ops_export.h b/fs/gfs2/ops_export.h
index 88d58e57f518..09fc077657d1 100644
--- a/fs/gfs2/ops_export.h
+++ b/fs/gfs2/ops_export.h
@@ -11,5 +11,9 @@
 #define __OPS_EXPORT_DOT_H__
 
 extern struct export_operations gfs2_export_ops;
+struct gfs2_fh_obj {
+        struct gfs2_inum this;
+        __u32            imode;
+};
 
 #endif /* __OPS_EXPORT_DOT_H__ */