magic sysrq keys functionality
Garrett Wollman
wollman at khavrinen.lcs.mit.edu
Mon Jul 26 15:20:26 PDT 2004
<<On Mon, 26 Jul 2004 16:06:33 -0600 (MDT), Scott Long <scottl at FreeBSD.ORG> said:
> This works right now because we assume that disks will commit blocks
> in order, and that assumption generally hasn't been broken.
I don't think soft updates cares about what order blocks are
committed, because it will not in general consider a dependency
resolved until it is notified that the buffer has been written. What
we do assume is that the disk (or driver) doesn't lie to us and claim
that a block was written when it really wasn't.
-GAWollman
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