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Date: Thu, 5 Oct 2006 21:23:12 +0200 From: Björn JACKE <bjacke@...net.de> To: Theodore Tso <tytso@....edu> Cc: ext3-users@...hat.com, linux-ext4@...r.kernel.org Subject: Re: creation time stamps for ext4 ? On 2006-10-05 at 12:55 -0400 Theodore Tso sent off: > > I've given this some thought for adding as part of the nsec timestamp > > patch. That is more feasable if we move the nsec ctime into the main > > inode to double as the version field. > > Shoehorning an extra creation time field into the inode is relatively > easy, but it's also necessary to have system calls to get and set the > creation time. The stat structure doesn't have room for the creation > time, so that means a new version of the stat structure exported the > kernel, and a new version of the stat structure exported by glibc. > > So there are VFS and glibc changes necessary to make this be useful. > But that doesn't prevent us from reserving space in the inode and > starting to fill it in with the creation time, although it may be > quite a while before it will be easily available to user programs like > Samba. yes, probably. But it's a reasonable effort to start that at some time. It's good if ext3 developers have it in mind already now. Should I open a feature request at bugzilla.kernel.org for the needed VFS changes? Bjoern - 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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