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Date: Mon, 21 Dec 2015 23:47:45 +0000
From: Al Viro <viro@...IV.linux.org.uk>
To: linux-kernel@...r.kernel.org
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [POC][PATCH 72/83] [powerpc] switch cmm_page_array->pages[] to pointers
From: Al Viro <viro@...iv.linux.org.uk>
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
arch/powerpc/platforms/pseries/cmm.c | 32 ++++++++++++++++----------------
1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/cmm.c b/arch/powerpc/platforms/pseries/cmm.c
index f4aa67d..af628e4 100644
--- a/arch/powerpc/platforms/pseries/cmm.c
+++ b/arch/powerpc/platforms/pseries/cmm.c
@@ -94,7 +94,7 @@ MODULE_PARM_DESC(debug, "Enable module debugging logging. Set to 1 to enable. "
struct cmm_page_array {
struct cmm_page_array *next;
unsigned long index;
- unsigned long page[CMM_NR_PAGES];
+ void *page[CMM_NR_PAGES];
};
static unsigned long loaned_pages;
@@ -119,7 +119,7 @@ static struct task_struct *cmm_thread_ptr;
static long cmm_alloc_pages(long nr)
{
struct cmm_page_array *pa, *npa;
- unsigned long addr;
+ void *addr;
long rc;
cmm_dbg("Begin request for %ld pages\n", nr);
@@ -136,7 +136,7 @@ static long cmm_alloc_pages(long nr)
break;
}
- addr = __get_free_page(GFP_NOIO | __GFP_NOWARN |
+ addr = get_free_page(GFP_NOIO | __GFP_NOWARN |
__GFP_NORETRY | __GFP_NOMEMALLOC);
if (!addr)
break;
@@ -149,7 +149,7 @@ static long cmm_alloc_pages(long nr)
__GFP_NORETRY | __GFP_NOMEMALLOC);
if (!npa) {
pr_info("%s: Can not allocate new page list\n", __func__);
- free_page((void *)addr);
+ free_page(addr);
break;
}
spin_lock(&cmm_lock);
@@ -167,7 +167,7 @@ static long cmm_alloc_pages(long nr)
if ((rc = plpar_page_set_loaned(__pa(addr)))) {
pr_err("%s: Can not set page to loaned. rc=%ld\n", __func__, rc);
spin_unlock(&cmm_lock);
- free_page((void *)addr);
+ free_page(addr);
break;
}
@@ -192,7 +192,7 @@ static long cmm_alloc_pages(long nr)
static long cmm_free_pages(long nr)
{
struct cmm_page_array *pa;
- unsigned long addr;
+ void *addr;
cmm_dbg("Begin free of %ld pages.\n", nr);
spin_lock(&cmm_lock);
@@ -209,7 +209,7 @@ static long cmm_free_pages(long nr)
}
plpar_page_set_active(__pa(addr));
- free_page((void *)addr);
+ free_page(addr);
loaned_pages--;
nr--;
totalram_pages++;
@@ -471,14 +471,14 @@ static unsigned long cmm_count_pages(void *arg)
{
struct memory_isolate_notify *marg = arg;
struct cmm_page_array *pa;
- unsigned long start = (unsigned long)pfn_to_kaddr(marg->start_pfn);
- unsigned long end = start + (marg->nr_pages << PAGE_SHIFT);
+ void *start = pfn_to_kaddr(marg->start_pfn);
+ void *end = start + (marg->nr_pages << PAGE_SHIFT);
unsigned long idx;
spin_lock(&cmm_lock);
pa = cmm_page_list;
while (pa) {
- if ((unsigned long)pa >= start && (unsigned long)pa < end)
+ if ((void *)pa >= start && (void *)pa < end)
marg->pages_found++;
for (idx = 0; idx < pa->index; idx++)
if (pa->page[idx] >= start && pa->page[idx] < end)
@@ -524,13 +524,13 @@ static struct notifier_block cmm_mem_isolate_nb = {
static int cmm_mem_going_offline(void *arg)
{
struct memory_notify *marg = arg;
- unsigned long start_page = (unsigned long)pfn_to_kaddr(marg->start_pfn);
- unsigned long end_page = start_page + (marg->nr_pages << PAGE_SHIFT);
+ void *start_page = pfn_to_kaddr(marg->start_pfn);
+ void *end_page = start_page + (marg->nr_pages << PAGE_SHIFT);
struct cmm_page_array *pa_curr, *pa_last, *npa;
unsigned long idx;
unsigned long freed = 0;
- cmm_dbg("Memory going offline, searching 0x%lx (%ld pages).\n",
+ cmm_dbg("Memory going offline, searching 0x%p (%ld pages).\n",
start_page, marg->nr_pages);
spin_lock(&cmm_lock);
@@ -543,7 +543,7 @@ static int cmm_mem_going_offline(void *arg)
continue;
plpar_page_set_active(__pa(pa_curr->page[idx]));
- free_page((void *)pa_curr->page[idx]);
+ free_page(pa_curr->page[idx]);
freed++;
loaned_pages--;
totalram_pages++;
@@ -563,8 +563,8 @@ static int cmm_mem_going_offline(void *arg)
pa_last = NULL;
pa_curr = cmm_page_list;
while (pa_curr) {
- if (((unsigned long)pa_curr >= start_page) &&
- ((unsigned long)pa_curr < end_page)) {
+ if (((void *)pa_curr >= start_page) &&
+ ((void *)pa_curr < end_page)) {
npa = get_free_page(GFP_NOIO | __GFP_NOWARN |
__GFP_NORETRY | __GFP_NOMEMALLOC);
if (!npa) {
--
2.1.4
--
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