On Wed, 2010-08-25 at 07:24 -0400, Ted Ts'o wrote:
quoted text
> Part of the problem is that we have a few places in the kernel where
> failure is really not an option --- or rather, if we're going to fail
> while we're in the middle of doing a commit, our choices really are
> (a) retry the loop in the jbd layer (which Andrew really doesn't
> like), (b) keep our own private cache of free memory so we don't fail
> and/or loop, (c) fail the file system and mark it read-only, or (d)
> panic. 

d) do the allocation before you're committed to going fwd and can still
fail and back out.
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