linux-kernel - [xfstests PATCH v3 5/5] btrfs: allow it to use $SCRATCH

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 for Android: free password hash cracker in your pocket

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

Date:   Wed, 31 May 2017 09:08:20 -0400
From:   Jeff Layton <jlayton@...hat.com>
To:     fstests@...r.kernel.org
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Al Viro <viro@...IV.linux.org.uk>, Jan Kara <jack@...e.cz>,
        tytso@....edu, axboe@...nel.dk, mawilcox@...rosoft.com,
        ross.zwisler@...ux.intel.com, corbet@....net, dhowells@...hat.com,
        linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-block@...r.kernel.org,
        linux-doc@...r.kernel.org
Subject: [xfstests PATCH v3 5/5] btrfs: allow it to use $SCRATCH_LOGDEV

With btrfs, we can't really put the log on a separate device. What we
can do however is mirror the metadata across two devices and make the
data striped across all devices. When we turn on dmerror then the
metadata can fall back to using the other mirror while the data errors
out.

Note that the current incarnation of btrfs has a fixed 64k stripe
width. If that ever changes or becomes settable, we may need to adjust
the amount of data that the test program writes.

Signed-off-by: Jeff Layton <jlayton@...hat.com>
---
 common/rc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/common/rc b/common/rc
index 83765aacfb06..078270451b53 100644
--- a/common/rc
+++ b/common/rc
@@ -830,6 +830,8 @@ _scratch_mkfs()
 		;;
 	btrfs)
 		mkfs_cmd="$MKFS_BTRFS_PROG"
+		[ "$USE_EXTERNAL" = yes -a ! -z "$SCRATCH_LOGDEV" ] && \
+			mkfs_cmd="$mkfs_cmd -d raid0 -m raid1 $SCRATCH_LOGDEV"
 		mkfs_filter="cat"
 		;;
 	ext3)
-- 
2.9.4