commit 3644917af21d711d723d27b262d6265167052ac4
Author: Erez Zadok <[EMAIL PROTECTED]>
Date: Thu Jan 10 07:02:38 2008 -0500
Unionfs: handle on lower inodes in lookup
Signed-off-by: Erez Zadok <[EMAIL PROTECTED]>
diff --git a/fs/unionfs/dentry.c b/fs/unionfs/dentry.c
index 4f67419..c3e7472 100644
--- a/fs/unionfs/dentry.c
+++ b/fs/unionfs/dentry.c
@@ -169,8 +169,12 @@ static bool __unionfs_d_revalidate_one(struct dentry
*dentry,
valid = false;
}
- if (!dentry->d_inode)
+ if (!dentry->d_inode ||
+ ibstart(dentry->d_inode) < 0 ||
+ ibend(dentry->d_inode) < 0) {
valid = false;
+ goto out;
+ }
if (valid) {
/*
diff --git a/fs/unionfs/lookup.c b/fs/unionfs/lookup.c
index d939b5d..117adc7 100644
--- a/fs/unionfs/lookup.c
+++ b/fs/unionfs/lookup.c
@@ -160,6 +160,7 @@ struct dentry *unionfs_lookup_backend(struct dentry *dentry,
continue;
/* Now do regular lookup; lookup foo */
+ BUG_ON(!lower_dir_dentry);
lower_dentry = lookup_one_len(name, lower_dir_dentry, namelen);
if (IS_ERR(lower_dentry)) {
dput(first_lower_dentry);
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