Re: DCACHE Pinning Problems with rm -r on 2.2.15/2.3.99Pre3 withNWFS 2.2.2

From: Manfred Spraul (manfreds@colorfullife.com)
Date: Fri Mar 31 2000 - 14:43:43 EST

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Al,

did you check my "event" patch? I remembered my patch when I read the DCACHE
thread.

event is _only_ used to optimize readdir():

f_version is modified by _lseek().
i_version is modified when a directory entry is added/removed.

and readdir() then compares i_version with f_version [at least ext2 does
that, and some fs partially copied that code].

Additionally, fat uses i_version and d_time to optimize d_revalidate(), but
noone needs a global counter.

I could update the patch to 2.3.99-pre3

-- Manfred

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