Messages in this thread | | | Subject | Re: [PATCH] minor optimization for EXT3 | From | Alex Tomas <> | Date | Thu, 10 Jul 2003 16:51:30 +0000 |
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>>>>> Andi Kleen (AK) writes:
AK> Alex Tomas <bzzz@tmi.comex.ru> writes: >> + if (i == start + inodes_per_buffer) { >> + /* all inodes (but our) are free. so, we skip I/O */
AK> Won't this make undeletion a lot harder? Deleted inodes will now be trashed AK> at will, so you cannot use their contents anymore.
AFAIK ext3 doesn't support undeletion at all
AK> Also dtimes in free inodes can be now lost, can't they? Did you check AK> if that causes problems in fsck? [my understanding was that ext2/3 fsck relies on the AK> dtime to make some heuristics when recovering files work better]
freed inodes will be lost. I've checked filesystem by fsck after lots of creations/removals. it seems OK.
AK> Maybe it should be an mount option so that users can trade performance against AK> better recoverability.
well, I'm not sure we really need it
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