remove antiquated comment from page_alloc.c
Subsystems (2)
This comment, describing how to optimize for gcc-2.2.2, is so outdated it should be removed. It's also quite doubtful it should ever have been placed in this file at all (perhaps something under Documentation/ ?). This patch removes it.
Against 2.5.19.
Cheers,
Bill
===== mm/page_alloc.c 1.65 vs edited =====
mm/page_alloc.c +0 -12
@@ -43,18 +43,6 @@static int zone_balance_min[MAX_NR_ZONES ]__initdata = {20 ,20 ,20 , };static int zone_balance_max[MAX_NR_ZONES ]__initdata = {255 ,255 ,255 , }; -/* -* Free_page() adds the page to the free lists. This is optimized for -* fast normal cases (no error jumps taken normally). -* -* The way to optimize jumps for gcc-2.2.2 is to: -* - select the "normal" case and put it inside the if () { XXX } -* - no else-statements if you can avoid them -* -* With the above two rules, you get a straight-line execution path -* for the normal case, giving better asm-code. -*/ -#define memlist_init (x) INIT_LIST_HEAD(x)#define memlist_add_head list_add#define memlist_add_tail list_add_tail