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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2010-10-05 16:03:41 +0530
committerSage Weil <sage@newdream.net>2010-10-07 08:00:23 -0700
commit92923dcbfcad107b0e0469f579a2455729ccf10e (patch)
treea16b4b1510af3c57acfa483d8f88cb5d0ba41d98 /fs/ceph/export.c
parent6bc18876ba01fd4a077db6e1ed27201e4bda8864 (diff)
ceph: Fix return value of encode_fh function
encode_fh function should return 255 on error as done by other file system to indicate EOVERFLOW. Also max_len is in sizeof(u32) units and not in bytes. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Sage Weil <sage@newdream.net>
Diffstat (limited to 'fs/ceph/export.c')
-rw-r--r--fs/ceph/export.c16
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 {
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)) {
+ } else if (*max_len >= handle_length) {
if (connectable)
- return -ENOSPC;
+ 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;
+ return 255;
}
return type;
}