[PATCH 02/16] Unionfs: Don't revalidate dropped dentries

["Josef 'Jeff' Sipek" <jsipek@cs.sunysb.edu>]

From: Erez Zadok <ezk@cs.sunysb.edu>

This fixes a harmless but annoying message that unionfs prints if a dropped
dentry is being revalidated, which could happen if you unlink open files.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>
---
 fs/unionfs/commonfops.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/unionfs/commonfops.c b/fs/unionfs/commonfops.c
index 1045e51..89a236b 100644
--- a/fs/unionfs/commonfops.c
+++ b/fs/unionfs/commonfops.c
@@ -305,9 +305,12 @@ int unionfs_file_revalidate(struct file *file, int willwrite)
 	unionfs_lock_dentry(dentry);
 	sb = dentry->d_sb;
 
-	/* first revalidate the dentry inside struct file */
-	if (!__unionfs_d_revalidate_chain(dentry, NULL) &&
-	    !d_deleted(dentry)) {
+	/*
+	 * First revalidate the dentry inside struct file,
+	 * but not unhashed dentries.
+	 */
+	if (!d_deleted(dentry) &&
+	    !__unionfs_d_revalidate_chain(dentry, NULL)) {
 		err = -ESTALE;
 		goto out_nofree;
 	}
-- 
1.5.2.rc1.165.gaf9b

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