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From: Erez Zadok <ezk@cs.sunysb.edu>
To: akpm@linux-foundation.org
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	viro@ftp.linux.org.uk, hch@infradead.org,
	Erez Zadok <ezk@cs.sunysb.edu>
Subject: [PATCH 6/9] Unionfs: debugging updates
Date: Tue, 13 Nov 2007 05:10:25 -0500	[thread overview]
Message-ID: <11949486303151-git-send-email-ezk@cs.sunysb.edu> (raw)
In-Reply-To: <11949486283697-git-send-email-ezk@cs.sunysb.edu>

Don't perform dentry+inode checks unless both are valid.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
---
 fs/unionfs/debug.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/unionfs/debug.c b/fs/unionfs/debug.c
index 0066ccd..8464fbb 100644
--- a/fs/unionfs/debug.c
+++ b/fs/unionfs/debug.c
@@ -299,7 +299,7 @@ check_inode:
 	 * be NULL.  But, check that all three are NULL: lower dentry, mnt,
 	 * and inode.
 	 */
-	if (S_ISDIR(inode->i_mode))
+	if (dstart >= 0 && dend >= 0 && S_ISDIR(inode->i_mode))
 		for (bindex = dstart+1; bindex < dend; bindex++) {
 			lower_inode = unionfs_lower_inode_idx(inode, bindex);
 			lower_dentry = unionfs_lower_dentry_idx(dentry,
-- 
1.5.2.2


  parent reply	other threads:[~2007-11-13 10:10 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-11-13 10:10 [GIT PULL -mm] 0/9 Unionfs updates/cleanups/fixes Erez Zadok
2007-11-13 10:10 ` [PATCH 1/9] Unionfs: flush and release updates Erez Zadok
2007-11-13 10:10 ` [PATCH 2/9] Unionfs: use i_size wrappers Erez Zadok
2007-11-13 10:10 ` [PATCH 3/9] Unionfs: update cache-coherency detection heuristics Erez Zadok
2007-11-13 10:10 ` [PATCH 4/9] Unionfs: writepage updates Erez Zadok
2007-11-13 10:10 ` [PATCH 5/9] Unionfs: clear partial read in readpage Erez Zadok
2007-11-13 10:10 ` Erez Zadok [this message]
2007-11-13 10:10 ` [PATCH 7/9] Unionfs: remove unnecessary lower atime updates Erez Zadok
2007-11-13 10:10 ` [PATCH 8/9] Unionfs: fold do_readpage into unionfs_readpage Erez Zadok
2007-11-13 10:10 ` [PATCH 9/9] Unionfs: move debugging checks inside locks Erez Zadok

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