Messages in this thread | | | Date | Wed, 09 Dec 2009 15:31:34 +0200 | From | Pekka Enberg <> | Subject | Re: [PATCH] kmemcheck: make bitfield annotations truly no-ops when disabled |
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Andrew Morton kirjoitti: > On Sun, 6 Dec 2009 18:42:13 +0100 > Vegard Nossum <vegard.nossum@gmail.com> wrote: > >> It turns out that even zero-sized struct members (int foo[0];) will affect >> the struct layout, causing us in particular to lose 4 bytes in struct sock. >> >> This patch fixes the regression in CONFIG_KMEMCHECK=n case. > > Which kernel version is the regression relative to?
AFAICT, it dates back to 2.6.31 when kmemcheck was introduced in mainline. Vegard?
> Should we backport this into 2.6.32.x?
I guess so. Eric, how bad is the regression?
Pekka
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