From 33af9039cbf629041da2bfa0cf451208391a1ec3 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Fri, 20 Jun 2008 22:08:37 +0200 Subject: [PATCH] x86: pat.c final cleanup of loop body in reserve_memtype Signed-off-by: Andreas Herrmann Cc: Venkatesh Pallipadi Cc: Suresh B Siddha Signed-off-by: Ingo Molnar --- arch/x86/mm/pat.c | 30 +++++++++++------------------- 1 file changed, 11 insertions(+), 19 deletions(-) diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index 281ac6489c08..a885a1019b8a 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -281,32 +281,24 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type, /* Search for existing mapping that overlaps the current range */ where = NULL; list_for_each_entry(entry, &memtype_list, nd) { - if (entry->start >= end) { + if (end <= entry->start) { where = entry->nd.prev; break; - } - - if (start <= entry->start && end >= entry->start) { + } else if (start <= entry->start) { /* end > entry->start */ err = chk_conflict(new, entry, new_type); - if (err) { - break; + if (!err) { + dprintk("Overlap at 0x%Lx-0x%Lx\n", + entry->start, entry->end); + where = entry->nd.prev; } - - dprintk("Overlap at 0x%Lx-0x%Lx\n", - entry->start, entry->end); - where = entry->nd.prev; break; - } - - if (start < entry->end) { + } else if (start < entry->end) { /* start > entry->start */ err = chk_conflict(new, entry, new_type); - if (err) { - break; + if (!err) { + dprintk("Overlap at 0x%Lx-0x%Lx\n", + entry->start, entry->end); + where = &entry->nd; } - - dprintk("Overlap at 0x%Lx-0x%Lx\n", - entry->start, entry->end); - where = &entry->nd; break; } } -- 2.20.1