diff options
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/power/userland-swsusp.txt | 14 |
1 files changed, 2 insertions, 12 deletions
diff --git a/Documentation/power/userland-swsusp.txt b/Documentation/power/userland-swsusp.txt index 381e9c0fb9d6..0785500e65fb 100644 --- a/Documentation/power/userland-swsusp.txt +++ b/Documentation/power/userland-swsusp.txt | |||
@@ -67,23 +67,13 @@ SNAPSHOT_GET_SWAP_PAGE - allocate a swap page from the resume partition | |||
67 | SNAPSHOT_FREE_SWAP_PAGES - free all swap pages allocated with | 67 | SNAPSHOT_FREE_SWAP_PAGES - free all swap pages allocated with |
68 | SNAPSHOT_GET_SWAP_PAGE | 68 | SNAPSHOT_GET_SWAP_PAGE |
69 | 69 | ||
70 | SNAPSHOT_SET_SWAP_FILE - set the resume partition (the last ioctl() argument | ||
71 | should specify the device's major and minor numbers in the old | ||
72 | two-byte format, as returned by the stat() function in the .st_rdev | ||
73 | member of the stat structure) | ||
74 | |||
75 | SNAPSHOT_SET_SWAP_AREA - set the resume partition and the offset (in <PAGE_SIZE> | 70 | SNAPSHOT_SET_SWAP_AREA - set the resume partition and the offset (in <PAGE_SIZE> |
76 | units) from the beginning of the partition at which the swap header is | 71 | units) from the beginning of the partition at which the swap header is |
77 | located (the last ioctl() argument should point to a struct | 72 | located (the last ioctl() argument should point to a struct |
78 | resume_swap_area, as defined in kernel/power/power.h, containing the | 73 | resume_swap_area, as defined in kernel/power/power.h, containing the |
79 | resume device specification, as for the SNAPSHOT_SET_SWAP_FILE ioctl(), | 74 | resume device specification and the offset); for swap partitions the |
80 | and the offset); for swap partitions the offset is always 0, but it is | 75 | offset is always 0, but it is different from zero for swap files (see |
81 | different to zero for swap files (please see | ||
82 | Documentation/swsusp-and-swap-files.txt for details). | 76 | Documentation/swsusp-and-swap-files.txt for details). |
83 | The SNAPSHOT_SET_SWAP_AREA ioctl() is considered as a replacement for | ||
84 | SNAPSHOT_SET_SWAP_FILE which is regarded as obsolete. It is | ||
85 | recommended to always use this call, because the code to set the resume | ||
86 | partition may be removed from future kernels | ||
87 | 77 | ||
88 | SNAPSHOT_PLATFORM_SUPPORT - enable/disable the hibernation platform support, | 78 | SNAPSHOT_PLATFORM_SUPPORT - enable/disable the hibernation platform support, |
89 | depending on the argument value (enable, if the argument is nonzero) | 79 | depending on the argument value (enable, if the argument is nonzero) |