Lines Matching refs:the

4 The Linux kernel handles swap files almost in the same way as it handles swap
8 (2) the header of a swap file is not in the first block of the partition that
9 holds it.  From the swsusp's point of view (1) is not a problem, because it is
10 already taken care of by the swap-handling code, but (2) has to be taken into
13 In principle the location of a swap file's header may be determined with the
14 help of appropriate filesystem driver.  Unfortunately, however, it requires the
15 filesystem holding the swap file to be mounted, and if this filesystem is
17 identify a swap file swsusp uses the name of the partition that holds the file
18 and the offset from the beginning of the partition at which the swap file's
24 1) Create the swap file and make it active, eg.
30 2) Use an application that will bmap the swap file with the help of the
31 FIBMAP ioctl and determine the location of the file's swap header, as the
32 offset, in <PAGE_SIZE> units, from the beginning of the partition which
33 holds the swap file.
35 3) Add the following parameters to the kernel command line:
39 where <swap_file_partition> is the partition on which the swap file is located
40 and <swap_file_offset> is the offset of the swap header determined by the
42 by the same application that determines the swap file's header offset using the
47 Use a userland suspend application that will set the partition and offset
48 with the help of the SNAPSHOT_SET_SWAP_AREA ioctl described in
49 Documentation/power/userland-swsusp.txt (this is the only method to suspend
50 to a swap file allowing the resume to be initiated from an initrd or initramfs
53 Now, swsusp will use the swap file in the same way in which it would use a swap
54 partition.  In particular, the swap file has to be active (ie. be present in
57 Note that if the swap file used for suspending is deleted and recreated,
58 the location of its header need not be the same as before.  Thus every time
59 this happens the value of the "resume_offset=" kernel command line parameter