Messages in this thread | | | Date | Mon, 23 Aug 1999 11:11:11 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [patch] fix for pagecache fs corruption (2.3.15-pre2) [Re: [patch] ramdisk blocksize] |
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On Mon, 23 Aug 1999, Andrea Arcangeli wrote: > > That is _exactly_ what I thought it was just happening in 2.3.x because I > didn't noticed the CAN_UNUSE difference between 2.2.x and 2.3.x. > > But before noticing CAN_UNUSE I fixed the problem properly (not with an > hack that can be exploited).
Wrong.
It's not a hack, and it cannot be exploited. You can't just lock down pages in memory - they will be paged out on demand, and there is no exploit. You seem to have complicated the code just because you didn't notice that we already handled it with a very simple test.
Linus
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