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authorLuca Tettamanti <kronos.it@gmail.com>2006-03-23 03:00:09 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-23 07:38:08 -0800
commit9b238205ba5d79a8a242d7a5ddb82b89e4dc4e48 (patch)
tree494b06bddd9d6b28a4e83ad7b49523a92ee5b207 /kernel/power/power.h
parent94c188d32996beac00426740974310e32f162c14 (diff)
[PATCH] swsusp: add s2ram ioctl to userland interface
Add the SNAPSHOT_S2RAM ioctl to the snapshot device. This ioctl allows a userland application to make the system (previously frozen with the SNAPSHOT_FREE ioctl) enter the S3 state without freezing processes and disabling nonboot CPUs for the second time. This will allow us to implement the suspend-to-disk-and-RAM (STDR) functionality in the userland suspend tools. Signed-off-by: Luca Tettamanti <kronos.it@gmail.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/power/power.h')
-rw-r--r--kernel/power/power.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 42c431c8bdd..f06f12f2176 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -77,7 +77,8 @@ int snapshot_image_loaded(struct snapshot_handle *handle);
#define SNAPSHOT_GET_SWAP_PAGE _IOR(SNAPSHOT_IOC_MAGIC, 8, void *)
#define SNAPSHOT_FREE_SWAP_PAGES _IO(SNAPSHOT_IOC_MAGIC, 9)
#define SNAPSHOT_SET_SWAP_FILE _IOW(SNAPSHOT_IOC_MAGIC, 10, unsigned int)
-#define SNAPSHOT_IOC_MAXNR 10
+#define SNAPSHOT_S2RAM _IO(SNAPSHOT_IOC_MAGIC, 11)
+#define SNAPSHOT_IOC_MAXNR 11
/**
* The bitmap is used for tracing allocated swap pages
@@ -112,3 +113,4 @@ extern int swsusp_resume(void);
extern int swsusp_read(void);
extern int swsusp_write(void);
extern void swsusp_close(void);
+extern int suspend_enter(suspend_state_t state);