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Date: Wed, 04 Nov 2009 01:05:28 -0700 From: Andreas Dilger <adilger@....com> To: Eric Sandeen <sandeen@...hat.com> Cc: Greg Freemyer <greg.freemyer@...il.com>, Theodore Tso <tytso@....edu>, Ted Augustine <taugustine@...hpathways.com>, Alexey Fisher <bug-track@...her-privat.net>, linux-ext4@...r.kernel.org Subject: Re: xt4 - True Readonly mount [WAS - Re: [Bug 14354] Bad corruption with 2.6.32-rc1 and upwards] On 2009-11-02, at 16:02, Eric Sandeen wrote: > Andreas Dilger wrote: >> I thought Takashi Sato was working on allowing a filesystem freeze >> ioctl from userspace? This would hook into the filesystem-specific >> freeze code so that when the ioctl() returns the on-disk filesystem >> is fully consistent and does not even require journal replay. > > That's in and done; most recent xfsprogs' xfs_freeze utility will > even freeze non-xfs filesystems now :) Otherwise a wrapper utility > around the ioctl would be trivial to write. It probably makes sense to add a tune2fs option to freeze and unfreeze the filesystem? That would allow ext* users to have an available/documented command even if they don't have xfsprogs installed. Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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