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-rw-r--r--fs/ceph/export.c26
1 files changed, 16 insertions, 10 deletions
diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index 4480cb1c63e7..2297d9426992 100644
--- 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;