[PATCH] eCryptfs: CIFS nlink fixes
When CIFS is the lower filesystem, the old lower dentry needs to be explicitly
dropped from inside eCryptfs to force a revalidate. In addition, when CIFS is
the lower filesystem, the inode attributes need to be copied back up from the
lower inode to the eCryptfs inode on an eCryptfs revalidate.
Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c
index 0b9992a..52d1e36 100644
--- a/fs/ecryptfs/dentry.c
+++ b/fs/ecryptfs/dentry.c
@@ -57,6 +57,12 @@
rc = lower_dentry->d_op->d_revalidate(lower_dentry, nd);
nd->dentry = dentry_save;
nd->mnt = vfsmount_save;
+ if (dentry->d_inode) {
+ struct inode *lower_inode =
+ ecryptfs_inode_to_lower(dentry->d_inode);
+
+ ecryptfs_copy_attr_all(dentry->d_inode, lower_inode);
+ }
out:
return rc;
}
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index ebec8cf..dfcc684 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -470,6 +470,7 @@
unlock_dir(lower_dir_dentry);
dput(lower_new_dentry);
dput(lower_old_dentry);
+ d_drop(lower_old_dentry);
d_drop(new_dentry);
d_drop(old_dentry);
return rc;
@@ -484,7 +485,7 @@
lock_parent(lower_dentry);
rc = vfs_unlink(lower_dir_inode, lower_dentry);
if (rc) {
- ecryptfs_printk(KERN_ERR, "Error in vfs_unlink\n");
+ printk(KERN_ERR "Error in vfs_unlink; rc = [%d]\n", rc);
goto out_unlock;
}
ecryptfs_copy_attr_times(dir, lower_dir_inode);