On Fri, Jul 3, 2015 at 5:25 PM, Sawada Masahiko <sawada.m...@gmail.com> wrote: > On Fri, Jul 3, 2015 at 1:23 AM, Simon Riggs <si...@2ndquadrant.com> wrote: >> On 2 July 2015 at 16:30, Sawada Masahiko <sawada.m...@gmail.com> wrote: >> >>> >>> Also, the flags of each heap page header might be set PD_ALL_FROZEN, >>> as well as all-visible >> >> >> Is it possible to have VM bits set to frozen but not visible? >> >> The description makes those two states sound independent of each other. >> >> Are they? Or not? Do we test for an impossible state? >> > > It's impossible to have VM bits set to frozen but not visible. > These bit are controlled independently. But eventually, when > all-frozen bit is set, all-visible is also set.
Attached latest version including some bug fix. Please review it. Regards, -- Sawada Masahiko
000_add_frozen_bit_into_visibilitymap_v5.patch
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