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authorMiles Bader <miles@gnu.org>1997-02-24 22:17:17 +0000
committerMiles Bader <miles@gnu.org>1997-02-24 22:17:17 +0000
commitb7fadbedd0bd45fc1bb880f1a4ba984a58b46972 (patch)
treecd0554bc7253c5a983d27c3600e7c499eb9597a1 /libdiskfs
parent3f47d2ad0c9108e0e55c999b45b4f0eff780125f (diff)
(diskfs_S_io_identity):
Return different fsys ids for different shadow roots.
Diffstat (limited to 'libdiskfs')
-rw-r--r--libdiskfs/io-identity.c15
1 files changed, 11 insertions, 4 deletions
diff --git a/libdiskfs/io-identity.c b/libdiskfs/io-identity.c
index 4734a534..7ac335ae 100644
--- a/libdiskfs/io-identity.c
+++ b/libdiskfs/io-identity.c
@@ -1,5 +1,5 @@
/* libdiskfs implementation of io_identity RPC
- Copyright (C) 1996 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997 Free Software Foundation, Inc.
Written by Michael I. Bushnell, p/BSG.
This file is part of the GNU Hurd.
@@ -43,14 +43,21 @@ diskfs_S_io_identity (struct protid *cred,
mutex_unlock (&np->lock);
err = fshelp_get_identity (diskfs_port_bucket, inum, id);
- if (!err)
+ if (! err)
+ if (cred->po->shadow_root && cred->po->shadow_root != diskfs_root_node)
+ {
+ err = fshelp_get_identity (diskfs_port_bucket, inum, fsys);
+ if (err)
+ mach_port_deallocate (mach_task_self (), *id);
+ }
+ else
+ *fsys = diskfs_fsys_identity;
+ if (! err)
{
*idtype = MACH_MSG_TYPE_MAKE_SEND;
- *fsys = diskfs_fsys_identity;
*fsystype = MACH_MSG_TYPE_MAKE_SEND;
*fileno = np->dn_stat.st_ino;
}
- mutex_unlock (&np->lock);
return err;
}