diff options
| -rw-r--r-- | fs/ceph/export.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/fs/ceph/export.c b/fs/ceph/export.c index 4480cb1c63e7..387c5823944e 100644 --- a/fs/ceph/export.c +++ b/fs/ceph/export.c | |||
| @@ -42,32 +42,34 @@ struct ceph_nfs_confh { | |||
| 42 | static int ceph_encode_fh(struct dentry *dentry, u32 *rawfh, int *max_len, | 42 | static int ceph_encode_fh(struct dentry *dentry, u32 *rawfh, int *max_len, |
| 43 | int connectable) | 43 | int connectable) |
| 44 | { | 44 | { |
| 45 | int type; | ||
| 45 | struct ceph_nfs_fh *fh = (void *)rawfh; | 46 | struct ceph_nfs_fh *fh = (void *)rawfh; |
| 46 | struct ceph_nfs_confh *cfh = (void *)rawfh; | 47 | struct ceph_nfs_confh *cfh = (void *)rawfh; |
| 47 | struct dentry *parent = dentry->d_parent; | 48 | struct dentry *parent = dentry->d_parent; |
| 48 | struct inode *inode = dentry->d_inode; | 49 | struct inode *inode = dentry->d_inode; |
| 49 | int type; | 50 | int connected_handle_length = sizeof(*cfh)/4; |
| 51 | int handle_length = sizeof(*fh)/4; | ||
| 50 | 52 | ||
| 51 | /* don't re-export snaps */ | 53 | /* don't re-export snaps */ |
| 52 | if (ceph_snap(inode) != CEPH_NOSNAP) | 54 | if (ceph_snap(inode) != CEPH_NOSNAP) |
| 53 | return -EINVAL; | 55 | return -EINVAL; |
| 54 | 56 | ||
| 55 | if (*max_len >= sizeof(*cfh)) { | 57 | if (*max_len >= connected_handle_length) { |
| 56 | dout("encode_fh %p connectable\n", dentry); | 58 | dout("encode_fh %p connectable\n", dentry); |
| 57 | cfh->ino = ceph_ino(dentry->d_inode); | 59 | cfh->ino = ceph_ino(dentry->d_inode); |
| 58 | cfh->parent_ino = ceph_ino(parent->d_inode); | 60 | cfh->parent_ino = ceph_ino(parent->d_inode); |
| 59 | cfh->parent_name_hash = parent->d_name.hash; | 61 | cfh->parent_name_hash = parent->d_name.hash; |
| 60 | *max_len = sizeof(*cfh); | 62 | *max_len = connected_handle_length; |
| 61 | type = 2; | 63 | type = 2; |
| 62 | } else if (*max_len > sizeof(*fh)) { | 64 | } else if (*max_len >= handle_length) { |
| 63 | if (connectable) | 65 | if (connectable) |
| 64 | return -ENOSPC; | 66 | return 255; |
| 65 | dout("encode_fh %p\n", dentry); | 67 | dout("encode_fh %p\n", dentry); |
| 66 | fh->ino = ceph_ino(dentry->d_inode); | 68 | fh->ino = ceph_ino(dentry->d_inode); |
| 67 | *max_len = sizeof(*fh); | 69 | *max_len = handle_length; |
| 68 | type = 1; | 70 | type = 1; |
| 69 | } else { | 71 | } else { |
| 70 | return -ENOSPC; | 72 | return 255; |
| 71 | } | 73 | } |
| 72 | return type; | 74 | return type; |
| 73 | } | 75 | } |
