The patch titled
swsusp: Introduce some helpful constants
has been added to the -mm tree. Its filename is
swsusp-introduce-some-helpful-constants.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: swsusp: Introduce some helpful constants
From: "Rafael J. Wysocki" <rjw@xxxxxxx>
Introduce some constants that hopefully will help improve the readability of
code in kernel/power/snapshot.c.
Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
kernel/power/snapshot.c | 24 +++++++++++++++---------
1 files changed, 15 insertions(+), 9 deletions(-)
diff -puN kernel/power/snapshot.c~swsusp-introduce-some-helpful-constants kernel/power/snapshot.c
--- a/kernel/power/snapshot.c~swsusp-introduce-some-helpful-constants
+++ a/kernel/power/snapshot.c
@@ -167,6 +167,11 @@ static inline int restore_highmem(void)
* and we count them using unsafe_pages
*/
+#define PG_ANY 0
+#define PG_SAFE 1
+#define PG_UNSAFE_CLEAR 1
+#define PG_UNSAFE_KEEP 0
+
static unsigned int unsafe_pages;
static void *alloc_image_page(gfp_t gfp_mask, int safe_needed)
@@ -190,7 +195,7 @@ static void *alloc_image_page(gfp_t gfp_
unsigned long get_safe_page(gfp_t gfp_mask)
{
- return (unsigned long)alloc_image_page(gfp_mask, 1);
+ return (unsigned long)alloc_image_page(gfp_mask, PG_SAFE);
}
/**
@@ -381,7 +386,7 @@ static struct pbe *alloc_pagedir(unsigne
pbe = pblist;
for (num = PBES_PER_PAGE; num < nr_pages; num += PBES_PER_PAGE) {
if (!pbe) {
- free_pagedir(pblist, 1);
+ free_pagedir(pblist, PG_UNSAFE_CLEAR);
return NULL;
}
pbe += PB_PAGE_SKIP;
@@ -458,12 +463,13 @@ static struct pbe *swsusp_alloc(unsigned
{
struct pbe *pblist;
- if (!(pblist = alloc_pagedir(nr_pages, GFP_ATOMIC | __GFP_COLD, 0))) {
+ pblist = alloc_pagedir(nr_pages, GFP_ATOMIC | __GFP_COLD, PG_ANY);
+ if (!pblist) {
printk(KERN_ERR "suspend: Allocating pagedir failed.\n");
return NULL;
}
- if (alloc_data_pages(pblist, GFP_ATOMIC | __GFP_COLD, 0)) {
+ if (alloc_data_pages(pblist, GFP_ATOMIC | __GFP_COLD, PG_ANY)) {
printk(KERN_ERR "suspend: Allocating image pages failed.\n");
swsusp_free();
return NULL;
@@ -575,7 +581,7 @@ int snapshot_read_next(struct snapshot_h
return 0;
if (!buffer) {
/* This makes the buffer be freed by swsusp_free() */
- buffer = alloc_image_page(GFP_ATOMIC, 0);
+ buffer = alloc_image_page(GFP_ATOMIC, PG_ANY);
if (!buffer)
return -ENOMEM;
}
@@ -688,7 +694,7 @@ static int load_header(struct snapshot_h
error = check_header(info);
if (!error) {
- pblist = alloc_pagedir(info->image_pages, GFP_ATOMIC, 0);
+ pblist = alloc_pagedir(info->image_pages, GFP_ATOMIC, PG_ANY);
if (!pblist)
return -ENOMEM;
restore_pblist = pblist;
@@ -746,10 +752,10 @@ static int prepare_image(struct snapshot
p = restore_pblist;
error = mark_unsafe_pages(p);
if (!error) {
- pblist = alloc_pagedir(nr_pages, GFP_ATOMIC, 1);
+ pblist = alloc_pagedir(nr_pages, GFP_ATOMIC, PG_SAFE);
if (pblist)
copy_page_backup_list(pblist, p);
- free_pagedir(p, 0);
+ free_pagedir(p, PG_UNSAFE_KEEP);
if (!pblist)
error = -ENOMEM;
}
@@ -840,7 +846,7 @@ int snapshot_write_next(struct snapshot_
return 0;
if (!buffer) {
/* This makes the buffer be freed by swsusp_free() */
- buffer = alloc_image_page(GFP_ATOMIC, 0);
+ buffer = alloc_image_page(GFP_ATOMIC, PG_ANY);
if (!buffer)
return -ENOMEM;
}
_
Patches currently in -mm which might be from rjw@xxxxxxx are
git-cifs.patch
pm-define-pm_event_prethaw.patch
pm-pci-and-ide-handle-pm_event_prethaw.patch
pm-video-drivers-and-pm_event_prethaw.patch
pm-usb-hcds-use-pm_event_prethaw.patch
pm-usb-hcds-use-pm_event_prethaw-fix.patch
pm-issue-pm_event_prethaw.patch
swsusp-write-timer.patch
swsusp-write-speedup.patch
swsusp-read-timer.patch
swsusp-read-speedup.patch
swsusp-read-speedup-fix.patch
swsusp-read-speedup-cleanup.patch
swsusp-read-speedup-cleanup-2.patch
swsusp-clean-up-browsing-of-pfns.patch
swsusp-struct-snapshot_handle-cleanup.patch
make-swsusp-avoid-memory-holes-and-reserved-memory-regions-on-x86_64.patch
disable-cpu-hotplug-during-suspend-2.patch
swsusp-fix-mark_free_pages.patch
swsusp-reorder-memory-allocating-functions.patch
swsusp-fix-alloc_pagedir.patch
clean-up-suspend-header.patch
change-the-name-of-pagedir_nosave.patch
swsusp-introduce-some-helpful-constants.patch
swsusp-introduce-memory-bitmaps.patch
swsusp-use-memory-bitmaps-during-resume.patch
reiserfs-make-sure-all-dentries-refs-are-released-before-calling-kill_block_super-try-2.patch
ide-reprogram-disk-pio-timings-on-resume.patch
-
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