Messages in this thread Patch in this message | | | From | Xiaotian Feng <> | Subject | [PATCH] x86/pat: no need to check overlaps with more than one entry in chk_conflict | Date | Wed, 18 Nov 2009 10:47:35 +0800 |
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memtype list is built via reserve_memtype, for the overlapped areas, they're all the same type, otherwise reserve_memtype will fail to insert it into the list. So there's no need to check overlaps with more than one entry in the chk_conflict code.
Signed-off-by: Xiaotian Feng <dfeng@redhat.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> --- arch/x86/mm/pat.c | 7 ------- 1 files changed, 0 insertions(+), 7 deletions(-)
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index 81fb753..8178763 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -247,13 +247,6 @@ chk_conflict(struct memtype *new, struct memtype *entry, unsigned long *type) goto conflict; } - /* check overlaps with more than one entry in the list */ - list_for_each_entry_continue(entry, &memtype_list, nd) { - if (new->end <= entry->start) - break; - else if (new->type != entry->type) - goto conflict; - } return 0; conflict: -- 1.6.2.5
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