diff options
| author | Miles Bader <miles@gnu.org> | 1997-02-14 01:19:23 +0000 |
|---|---|---|
| committer | Miles Bader <miles@gnu.org> | 1997-02-14 01:19:23 +0000 |
| commit | 5fe269f922f2b2c5f43714927ce2de8c03e143bf (patch) | |
| tree | c68143fa6812f61ba5e876557adac4622239b98e /libdiskfs | |
| parent | 589ce62d84d27e21e73cb675dec7c0e19a945f82 (diff) | |
(diskfs_S_dir_rename):
Return EXDEV if FROMCRED and TOCRED are in different shadow trees.
Don't pass depth args to diskfs_lookup.
Diffstat (limited to 'libdiskfs')
| -rw-r--r-- | libdiskfs/dir-rename.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/libdiskfs/dir-rename.c b/libdiskfs/dir-rename.c index 5c15a1cc..6fc7e0f5 100644 --- a/libdiskfs/dir-rename.c +++ b/libdiskfs/dir-rename.c @@ -39,7 +39,11 @@ diskfs_S_dir_rename (struct protid *fromcred, return EOPNOTSUPP; /* Verify that tocred really is a port to us. */ - if (!tocred) + if (! tocred) + return EXDEV; + + if (tocred->po->shadow_root != fromcred->po->shadow_root) + /* Same translator, but in different shadow trees. */ return EXDEV; if (diskfs_check_readonly ()) @@ -53,8 +57,7 @@ diskfs_S_dir_rename (struct protid *fromcred, will prevent anyone from deleting it before we create the new link. */ mutex_lock (&fdp->lock); - err = diskfs_lookup (fdp, fromname, LOOKUP, &fnp, 0, fromcred, - fromcred->po->depth, 0); + err = diskfs_lookup (fdp, fromname, LOOKUP, &fnp, 0, fromcred); mutex_unlock (&fdp->lock); if (err == EAGAIN) err = EINVAL; @@ -102,8 +105,7 @@ diskfs_S_dir_rename (struct protid *fromcred, /* Link the node into the new directory. */ mutex_lock (&tdp->lock); - err = diskfs_lookup (tdp, toname, RENAME, &tnp, ds, tocred, - tocred->po->depth, 0); + err = diskfs_lookup (tdp, toname, RENAME, &tnp, ds, tocred); if (err == EAGAIN) err = EINVAL; else if (!err && excl) @@ -186,8 +188,7 @@ diskfs_S_dir_rename (struct protid *fromcred, fdp locked (nor could we), so someone else might have already removed it. */ mutex_lock (&fdp->lock); - err = diskfs_lookup (fdp, fromname, REMOVE, &tmpnp, ds, fromcred, - fromcred->po->depth, 0); + err = diskfs_lookup (fdp, fromname, REMOVE, &tmpnp, ds, fromcred); if (err) { diskfs_drop_dirstat (tdp, ds); |