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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/s390/mm/page-states.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/s390/mm/page-states.c')
-rw-r--r--ANDROID_3.4.5/arch/s390/mm/page-states.c114
1 files changed, 0 insertions, 114 deletions
diff --git a/ANDROID_3.4.5/arch/s390/mm/page-states.c b/ANDROID_3.4.5/arch/s390/mm/page-states.c
deleted file mode 100644
index a90d45e9..00000000
--- a/ANDROID_3.4.5/arch/s390/mm/page-states.c
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * Copyright IBM Corp. 2008
- *
- * Guest page hinting for unused pages.
- *
- * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
- */
-
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/gfp.h>
-#include <linux/init.h>
-
-#define ESSA_SET_STABLE 1
-#define ESSA_SET_UNUSED 2
-
-static int cmma_flag = 1;
-
-static int __init cmma(char *str)
-{
- char *parm;
-
- parm = strstrip(str);
- if (strcmp(parm, "yes") == 0 || strcmp(parm, "on") == 0) {
- cmma_flag = 1;
- return 1;
- }
- cmma_flag = 0;
- if (strcmp(parm, "no") == 0 || strcmp(parm, "off") == 0)
- return 1;
- return 0;
-}
-__setup("cmma=", cmma);
-
-void __init cmma_init(void)
-{
- register unsigned long tmp asm("0") = 0;
- register int rc asm("1") = -EOPNOTSUPP;
-
- if (!cmma_flag)
- return;
- asm volatile(
- " .insn rrf,0xb9ab0000,%1,%1,0,0\n"
- "0: la %0,0\n"
- "1:\n"
- EX_TABLE(0b,1b)
- : "+&d" (rc), "+&d" (tmp));
- if (rc)
- cmma_flag = 0;
-}
-
-static inline void set_page_unstable(struct page *page, int order)
-{
- int i, rc;
-
- for (i = 0; i < (1 << order); i++)
- asm volatile(".insn rrf,0xb9ab0000,%0,%1,%2,0"
- : "=&d" (rc)
- : "a" (page_to_phys(page + i)),
- "i" (ESSA_SET_UNUSED));
-}
-
-void arch_free_page(struct page *page, int order)
-{
- if (!cmma_flag)
- return;
- set_page_unstable(page, order);
-}
-
-static inline void set_page_stable(struct page *page, int order)
-{
- int i, rc;
-
- for (i = 0; i < (1 << order); i++)
- asm volatile(".insn rrf,0xb9ab0000,%0,%1,%2,0"
- : "=&d" (rc)
- : "a" (page_to_phys(page + i)),
- "i" (ESSA_SET_STABLE));
-}
-
-void arch_alloc_page(struct page *page, int order)
-{
- if (!cmma_flag)
- return;
- set_page_stable(page, order);
-}
-
-void arch_set_page_states(int make_stable)
-{
- unsigned long flags, order, t;
- struct list_head *l;
- struct page *page;
- struct zone *zone;
-
- if (!cmma_flag)
- return;
- if (make_stable)
- drain_local_pages(NULL);
- for_each_populated_zone(zone) {
- spin_lock_irqsave(&zone->lock, flags);
- for_each_migratetype_order(order, t) {
- list_for_each(l, &zone->free_area[order].free_list[t]) {
- page = list_entry(l, struct page, lru);
- if (make_stable)
- set_page_stable(page, order);
- else
- set_page_unstable(page, order);
- }
- }
- spin_unlock_irqrestore(&zone->lock, flags);
- }
-}