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Date: Sun, 12 Oct 2008 21:45:12 +0800 From: "bibo mao" <bibo.mao@...il.com> To: akpm@...ux-foundation.org Cc: linux-kernel@...r.kernel.org Subject: [patch 0/1]pat: remove redundant condition check On file pat.c, if (start <= entry->start), it also means (start < entry->end). This patch removes redundant condition check. Signed-off-by: bibo.mao@...il.com thanks bibo,mao ------------------------------------------------------ diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index 2a50e0f..12cac5e 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -305,27 +305,6 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type, struct memtype, nd); } break; - } else if (start < entry->end) { /* start > entry->start */ - err = chk_conflict(new, entry, new_type); - if (!err) { - dprintk("Overlap at 0x%Lx-0x%Lx\n", - entry->start, entry->end); - cached_entry = list_entry(entry->nd.prev, - struct memtype, nd); - - /* - * Move to right position in the linked - * list to add this new entry - */ - list_for_each_entry_continue(entry, - &memtype_list, nd) { - if (start <= entry->start) { - where = entry->nd.prev; - break; - } - } - } - break; } } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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