Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / include / linux / suspend.h

diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 932dc2c..37c1c76 100644 (file)
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -1,7 +1,7 @@
 #ifndef _LINUX_SWSUSP_H
 #define _LINUX_SWSUSP_H
 
-#ifdef CONFIG_X86
+#if defined(CONFIG_X86) || defined(CONFIG_FRV) || defined(CONFIG_PPC32)
 #include <asm/suspend.h>
 #endif
 #include <linux/swap.h>
@@ -10,53 +10,55 @@
 #include <linux/init.h>
 #include <linux/pm.h>
 
-#ifdef CONFIG_PM
 /* page backup entry */
 typedef struct pbe {
        unsigned long address;          /* address of the copy */
        unsigned long orig_address;     /* original address of page */
-       swp_entry_t swap_address;       
-       swp_entry_t dummy;              /* we need scratch space at 
-                                        * end of page (see link, diskpage)
-                                        */
+       struct pbe *next;
 } suspend_pagedir_t;
 
+#define for_each_pbe(pbe, pblist) \
+       for (pbe = pblist ; pbe ; pbe = pbe->next)
+
+#define PBES_PER_PAGE      (PAGE_SIZE/sizeof(struct pbe))
+#define PB_PAGE_SKIP       (PBES_PER_PAGE-1)
+
+#define for_each_pb_page(pbe, pblist) \
+       for (pbe = pblist ; pbe ; pbe = (pbe+PB_PAGE_SKIP)->next)
+
+
 #define SWAP_FILENAME_MAXLENGTH        32
 
 
-#define SUSPEND_PD_PAGES(x)     (((x)*sizeof(struct pbe))/PAGE_SIZE+1)
+extern dev_t swsusp_resume_device;
    
 /* mm/vmscan.c */
 extern int shrink_mem(void);
 
 /* mm/page_alloc.c */
 extern void drain_local_pages(void);
+extern void mark_free_pages(struct zone *zone);
 
+#ifdef CONFIG_PM
 /* kernel/power/swsusp.c */
 extern int software_suspend(void);
 
-#else  /* CONFIG_SOFTWARE_SUSPEND */
+#if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE)
+extern int pm_prepare_console(void);
+extern void pm_restore_console(void);
+#else
+static inline int pm_prepare_console(void) { return 0; }
+static inline void pm_restore_console(void) {}
+#endif /* defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE) */
+#else
 static inline int software_suspend(void)
 {
        printk("Warning: fake suspend called\n");
        return -EPERM;
 }
-#endif /* CONFIG_SOFTWARE_SUSPEND */
+#endif /* CONFIG_PM */
 
-
-#ifdef CONFIG_PM
-extern void refrigerator(unsigned long);
-extern int freeze_processes(void);
-extern void thaw_processes(void);
-
-extern int pm_prepare_console(void);
-extern void pm_restore_console(void);
-
-#else
-static inline void refrigerator(unsigned long flag) {}
-#endif /* CONFIG_PM */
-
-#ifdef CONFIG_SMP
+#ifdef CONFIG_SUSPEND_SMP
 extern void disable_nonboot_cpus(void);
 extern void enable_nonboot_cpus(void);
 #else
@@ -69,5 +71,12 @@ void restore_processor_state(void);
 struct saved_context;
 void __save_processor_state(struct saved_context *ctxt);
 void __restore_processor_state(struct saved_context *ctxt);
+unsigned long get_safe_page(gfp_t gfp_mask);
+
+/*
+ * XXX: We try to keep some more pages free so that I/O operations succeed
+ * without paging. Might this be more?
+ */
+#define PAGES_FOR_IO   1024
 
 #endif /* _LINUX_SWSUSP_H */