linux-ext4 - [PATCH] ext4: Allow rename even if link count is greater than EXT4_LINK

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Message-Id: <1251286645-14439-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
Date:	Wed, 26 Aug 2009 17:07:25 +0530
From:	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:	cmm@...ibm.com, tytso@....edu, sandeen@...hat.com, adilger@....com
Cc:	linux-ext4@...r.kernel.org,
	"Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
Subject: [PATCH] ext4: Allow rename even if link count is greater than EXT4_LINK_MAX for index directories

With EXT4_FEATURE_RO_COMPAT_DIR_NLINK we enable more than EXT4_LINK_MAX
sub directories. So we should not fail rename with too many links error
if EXT4_FEATURE_RO_COMPAT_DIR_NLINK feature is set.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@...ux.vnet.ibm.com>
---
 fs/ext4/namei.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index de04013..9d0db97 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2413,7 +2413,7 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
 			goto end_rename;
 		retval = -EMLINK;
 		if (!new_inode && new_dir != old_dir &&
-				new_dir->i_nlink >= EXT4_LINK_MAX)
+					EXT4_DIR_LINK_MAX(new_dir))
 			goto end_rename;
 	}
 	if (!new_bh) {
-- 
1.6.4.1.196.g31f0b

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