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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-01-29 08:13:25 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2011-03-14 09:15:28 -0400
commit5fe0c2378884e68beb532f5890cc0e3539ac747b (patch)
treebe25414052184e146049ea6466854366559d5528 /fs/fat/inode.c
parentc8b91accfa1059d5565443193d89572eca2f5dd6 (diff)
exportfs: Return the minimum required handle size
The exportfs encode handle function should return the minimum required handle size. This helps user to find out the handle size by passing 0 handle size in the first step and then redoing to the call again with the returned handle size value. Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/fat/inode.c')
-rw-r--r--fs/fat/inode.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 86753fe10bd1..0e277ec4b612 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -757,8 +757,10 @@ fat_encode_fh(struct dentry *de, __u32 *fh, int *lenp, int connectable)
757 struct inode *inode = de->d_inode; 757 struct inode *inode = de->d_inode;
758 u32 ipos_h, ipos_m, ipos_l; 758 u32 ipos_h, ipos_m, ipos_l;
759 759
760 if (len < 5) 760 if (len < 5) {
761 *lenp = 5;
761 return 255; /* no room */ 762 return 255; /* no room */
763 }
762 764
763 ipos_h = MSDOS_I(inode)->i_pos >> 8; 765 ipos_h = MSDOS_I(inode)->i_pos >> 8;
764 ipos_m = (MSDOS_I(inode)->i_pos & 0xf0) << 24; 766 ipos_m = (MSDOS_I(inode)->i_pos & 0xf0) << 24;