Merge branch 'stable/swiotlb-0.9' of git://git.kernel.org/pub/scm/linux/kernel/git...

[pandora-kernel.git] / fs / ceph / export.c

diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index 4480cb1..2297d94 100644 (file)
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -1,10 +1,11 @@
-#include "ceph_debug.h"
+#include <linux/ceph/ceph_debug.h>
 
 #include <linux/exportfs.h>
 #include <linux/slab.h>
 #include <asm/unaligned.h>
 
 #include "super.h"
+#include "mds_client.h"
 
 /*
  * NFS export support
@@ -42,32 +43,37 @@ struct ceph_nfs_confh {
 static int ceph_encode_fh(struct dentry *dentry, u32 *rawfh, int *max_len,
                          int connectable)
 {
+       int type;
        struct ceph_nfs_fh *fh = (void *)rawfh;
        struct ceph_nfs_confh *cfh = (void *)rawfh;
        struct dentry *parent = dentry->d_parent;
        struct inode *inode = dentry->d_inode;
-       int type;
+       int connected_handle_length = sizeof(*cfh)/4;
+       int handle_length = sizeof(*fh)/4;
 
        /* don't re-export snaps */
        if (ceph_snap(inode) != CEPH_NOSNAP)
                return -EINVAL;
 
-       if (*max_len >= sizeof(*cfh)) {
+       if (*max_len >= connected_handle_length) {
                dout("encode_fh %p connectable\n", dentry);
                cfh->ino = ceph_ino(dentry->d_inode);
                cfh->parent_ino = ceph_ino(parent->d_inode);
                cfh->parent_name_hash = parent->d_name.hash;
-               *max_len = sizeof(*cfh);
+               *max_len = connected_handle_length;
                type = 2;
-       } else if (*max_len > sizeof(*fh)) {
-               if (connectable)
-                       return -ENOSPC;
+       } else if (*max_len >= handle_length) {
+               if (connectable) {
+                       *max_len = connected_handle_length;
+                       return 255;
+               }
                dout("encode_fh %p\n", dentry);
                fh->ino = ceph_ino(dentry->d_inode);
-               *max_len = sizeof(*fh);
+               *max_len = handle_length;
                type = 1;
        } else {
-               return -ENOSPC;
+               *max_len = handle_length;
+               return 255;
        }
        return type;
 }
@@ -115,7 +121,7 @@ static struct dentry *__fh_to_dentry(struct super_block *sb,
 static struct dentry *__cfh_to_dentry(struct super_block *sb,
                                      struct ceph_nfs_confh *cfh)
 {
-       struct ceph_mds_client *mdsc = &ceph_sb_to_client(sb)->mdsc;
+       struct ceph_mds_client *mdsc = ceph_sb_to_client(sb)->mdsc;
        struct inode *inode;
        struct dentry *dentry;
        struct ceph_vino vino;