linux-ext4 - [PATCH 2/2] ext4: Do not use stripe

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20170209153050.15317-2-jack@suse.cz>
Date:   Thu,  9 Feb 2017 16:30:50 +0100
From:   Jan Kara <jack@...e.cz>
To:     Ted Tso <tytso@....edu>
Cc:     linux-ext4@...r.kernel.org,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Jan Kara <jack@...e.cz>
Subject: [PATCH 2/2] ext4: Do not use stripe_with if it is not set

Avoid using stripe_width for sbi->s_stripe value if it is not actually
set. It prevents using the stride for sbi->s_stripe.

Signed-off-by: Jan Kara <jack@...e.cz>
---
 fs/ext4/super.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 66845a08a87a..b82cd3b263b4 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2619,9 +2619,9 @@ static unsigned long ext4_get_stripe_size(struct ext4_sb_info *sbi)
 
 	if (sbi->s_stripe && sbi->s_stripe <= sbi->s_blocks_per_group)
 		ret = sbi->s_stripe;
-	else if (stripe_width <= sbi->s_blocks_per_group)
+	else if (stripe_width && stripe_width <= sbi->s_blocks_per_group)
 		ret = stripe_width;
-	else if (stride <= sbi->s_blocks_per_group)
+	else if (stride && stride <= sbi->s_blocks_per_group)
 		ret = stride;
 	else
 		ret = 0;
-- 
2.10.2