diff options
Diffstat (limited to 'kernel/power/power.h')
| -rw-r--r-- | kernel/power/power.h | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/kernel/power/power.h b/kernel/power/power.h index adaf7d4fbda..7dbfd9f67e1 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -106,6 +106,16 @@ extern int snapshot_write_next(struct snapshot_handle *handle, size_t count); extern int snapshot_image_loaded(struct snapshot_handle *handle); extern void snapshot_free_unused_memory(struct snapshot_handle *handle); +/* + * This structure is used to pass the values needed for the identification + * of the resume swap area from a user space to the kernel via the + * SNAPSHOT_SET_SWAP_AREA ioctl + */ +struct resume_swap_area { + loff_t offset; + u_int32_t dev; +} __attribute__((packed)); + #define SNAPSHOT_IOC_MAGIC '3' #define SNAPSHOT_FREEZE _IO(SNAPSHOT_IOC_MAGIC, 1) #define SNAPSHOT_UNFREEZE _IO(SNAPSHOT_IOC_MAGIC, 2) @@ -119,7 +129,9 @@ extern void snapshot_free_unused_memory(struct snapshot_handle *handle); #define SNAPSHOT_SET_SWAP_FILE _IOW(SNAPSHOT_IOC_MAGIC, 10, unsigned int) #define SNAPSHOT_S2RAM _IO(SNAPSHOT_IOC_MAGIC, 11) #define SNAPSHOT_PMOPS _IOW(SNAPSHOT_IOC_MAGIC, 12, unsigned int) -#define SNAPSHOT_IOC_MAXNR 12 +#define SNAPSHOT_SET_SWAP_AREA _IOW(SNAPSHOT_IOC_MAGIC, 13, \ + struct resume_swap_area) +#define SNAPSHOT_IOC_MAXNR 13 #define PMOPS_PREPARE 1 #define PMOPS_ENTER 2 |