Re: [Ext2-devel] [RFC] [PATCH] Reducing average ext2 fsck time through fs-wide dirty bit]
- From: Badari Pulavarty <pbadari@xxxxxxxxx>
- Date: Wed, 22 Mar 2006 11:09:18 -0800
On Tue, 2006-03-21 at 17:10 -0800, Valerie Henson wrote:
Hi all,..
I am working on reducing the average time spent on fscking ext2 file
systems. My initial take on the problem is to avoid fscking when the
file system is not being modified. If we're not actively modifying
the file system when we crash, it seems intuitive that we could avoid
fsck on next mount. The obvious way to implement this is to add a
clean/dirty bit to the superblock, check every so often to see if the
file system is not being written, sync out all outstanding writes, and
mark the file system clean. On boot, fsck should check for the clean
bit and mark the file system as valid, thereby avoiding a full fsck.
I call this the fs-wide dirty bit solution.
Just curious, why are you teaching ext2 same tricks that are in ext3 ?
Is there a reason behind improving ext2 ? Are there any benefits
of not using ext3 instead ?
Thanks,
Badari
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