From: Erez Zadok <ezk@cs.sunysb.edu>
Date: Fri, 30 Nov 2007 19:17:34 +0000 (-0500)
Subject: Unionfs ODF: prevent leaking /odf/* dentries
X-Git-Url: https://git.fsl.cs.stonybrook.edu/?a=commitdiff_plain;h=c62943ba3e52b47d9d4b42b846f07dc9d583a9f7;p=unionfs-odf.git

Unionfs ODF: prevent leaking /odf/* dentries

Upon cache coherency, also dput the odf.dentry.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
---

diff --git a/fs/unionfs/dentry.c b/fs/unionfs/dentry.c
index ada52f1244..a8da175225 100644
--- a/fs/unionfs/dentry.c
+++ b/fs/unionfs/dentry.c
@@ -134,6 +134,11 @@ static bool __unionfs_d_revalidate_one(struct dentry *dentry,
 			if (locked)
 				mutex_unlock(&dentry->d_inode->i_mutex);
 		}
+		/* on reval, als purge the odf dentry, if any */
+		if (UNIONFS_D(dentry)->odf.dentry) {
+			dput(UNIONFS_D(dentry)->odf.dentry);
+			UNIONFS_D(dentry)->odf.dentry = NULL;
+		}
 
 		result = unionfs_lookup_backend(dentry, &lowernd,
 						interpose_flag);