From: Ted Ts'o <tytso@mit.edu>
To: Andreas Dilger <adilger@whamcloud.com>
Cc: linux-ext4@vger.kernel.org, Johann Lombardi <johann@whamcloud.com>
Subject: Re: [PATCH 3/4] ext2fs: add multi-mount protection (INCOMPAT_MMP)
Date: Sat, 24 Sep 2011 14:49:54 -0400 [thread overview]
Message-ID: <20110924184954.GF2779@thunk.org> (raw)
In-Reply-To: <1316821124-7461-3-git-send-email-adilger@whamcloud.com>
On Fri, Sep 23, 2011 at 05:38:43PM -0600, Andreas Dilger wrote:
> Multi-mount protection is feature that allows mke2fs, e2fsck, and
> others to detect if the filesystem is mounted on a remote node (on
> SAN disks) and avoid corrupting the filesystem. For e2fsprogs this
> means that it checks the MMP block to see if the filesystem is in use,
> and marks the filesystem busy while e2fsck is running on the system.
Applied, thanks.
- Ted
next prev parent reply other threads:[~2011-09-24 18:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-23 23:38 [PATCH 1/4] misc: quiet minor compiler errors Andreas Dilger
2011-09-23 23:38 ` [PATCH 2/4] tune2fs: kill external journal if device not found Andreas Dilger
2011-09-24 18:49 ` Ted Ts'o
2011-09-26 17:59 ` Ted Ts'o
2011-09-23 23:38 ` [PATCH 3/4] ext2fs: add multi-mount protection (INCOMPAT_MMP) Andreas Dilger
2011-09-24 18:49 ` Ted Ts'o [this message]
2011-09-23 23:38 ` [PATCH 4/4] e2fsck: regression tests for INCOMPAT_MMP feature Andreas Dilger
2011-09-23 23:51 ` Andreas Dilger
2011-09-24 18:51 ` Ted Ts'o
2011-09-25 6:04 ` Andreas Dilger
2011-09-25 12:05 ` Ted Ts'o
2011-09-23 23:44 ` [PATCH 1/4] misc: quiet minor compiler errors Andreas Dilger
2011-09-24 18:49 ` Ted Ts'o
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