hugetlb: clarify hugetlb_instantiation_mutex usage

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Let's make it clear that we cannot race with other fault handlers due to
hugetlb (global) mutex.  Also make it clear that we want to keep pte_same
checks anayway to have a transition from the global mutex easier.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Michal Hocko 2012-01-10 15:07:21 -08:00 • committed by Linus Torvalds

parent a734bcc812

commit ef009b25f4

1 changed files with 3 additions and 0 deletions

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mm/hugetlb.c

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