Merge branch 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / Hibernate: Drop the check of swap space size for compressed image
  PM / shmobile: fix A3SP suspend method
  PM / Domains: Skip governor functions for CONFIG_PM_RUNTIME unset
  PM / Domains: Fix build for CONFIG_PM_SLEEP unset
  PM: Make sysrq-o be available for CONFIG_PM unset

kernel/Makefile

@@ -23,6 +23,7 @@ CFLAGS_REMOVE_irq_work.o = -pg
 endif
 
 obj-y += sched/
+obj-y += power/
 
 obj-$(CONFIG_FREEZER) += freezer.o
 obj-$(CONFIG_PROFILING) += profile.o
@@ -52,8 +53,6 @@ obj-$(CONFIG_PROVE_LOCKING) += spinlock.o
 obj-$(CONFIG_UID16) += uid16.o
 obj-$(CONFIG_MODULES) += module.o
 obj-$(CONFIG_KALLSYMS) += kallsyms.o
-obj-$(CONFIG_PM) += power/
-obj-$(CONFIG_FREEZER) += power/
 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
 obj-$(CONFIG_KEXEC) += kexec.o
 obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o

kernel/power/swap.c

@@ -773,8 +773,7 @@ static int enough_swap(unsigned int nr_pages, unsigned int flags)
 
 	pr_debug("PM: Free swap pages: %u\n", free_swap);
 
-	required = PAGES_FOR_IO + ((flags & SF_NOCOMPRESS_MODE) ?
-		nr_pages : (nr_pages * LZO_CMP_PAGES) / LZO_UNC_PAGES + 1);
+	required = PAGES_FOR_IO + nr_pages;
 	return free_swap > required;
 }
 
@@ -802,10 +801,12 @@ int swsusp_write(unsigned int flags)
 		printk(KERN_ERR "PM: Cannot get swap writer\n");
 		return error;
 	}
-	if (!enough_swap(pages, flags)) {
-		printk(KERN_ERR "PM: Not enough free swap\n");
-		error = -ENOSPC;
-		goto out_finish;
+	if (flags & SF_NOCOMPRESS_MODE) {
+		if (!enough_swap(pages, flags)) {
+			printk(KERN_ERR "PM: Not enough free swap\n");
+			error = -ENOSPC;
+			goto out_finish;
+		}
 	}
 	memset(&snapshot, 0, sizeof(struct snapshot_handle));
 	error = snapshot_read_next(&snapshot);