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authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-17 20:58:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-17 20:58:11 -0700
commitca043a66ae48c74fa628ec92178f7a54f5b9a106 (patch)
tree37e9019bb99ed0f59debc426456e71befd4b7a9c /arch/x86/mm/pat.c
parent1218259b2d09c79ed1113d3a6dbb9a1d6391f5cb (diff)
parent3bb045f1e2e51124200ef043256df4c7ad86bebd (diff)
Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, pat: don't use rb-tree based lookup in reserve_memtype() x86: Increase MIN_GAP to include randomized stack
Diffstat (limited to 'arch/x86/mm/pat.c')
-rw-r--r--arch/x86/mm/pat.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index d7ebc3a10f2f..7257cf3decf9 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -424,17 +424,9 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type,
spin_lock(&memtype_lock);
- entry = memtype_rb_search(&memtype_rbroot, new->start);
- if (likely(entry != NULL)) {
- /* To work correctly with list_for_each_entry_continue */
- entry = list_entry(entry->nd.prev, struct memtype, nd);
- } else {
- entry = list_entry(&memtype_list, struct memtype, nd);
- }
-
/* Search for existing mapping that overlaps the current range */
where = NULL;
- list_for_each_entry_continue(entry, &memtype_list, nd) {
+ list_for_each_entry(entry, &memtype_list, nd) {
if (end <= entry->start) {
where = entry->nd.prev;
break;
@@ -532,7 +524,7 @@ int free_memtype(u64 start, u64 end)
* in sorted start address
*/
saved_entry = entry;
- list_for_each_entry(entry, &memtype_list, nd) {
+ list_for_each_entry_from(entry, &memtype_list, nd) {
if (entry->start == start && entry->end == end) {
rb_erase(&entry->rb, &memtype_rbroot);
list_del(&entry->nd);