diff options
| author | Bojan Smojver <bojan@rexursive.com> | 2010-09-09 23:06:23 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2010-10-17 01:57:42 +0200 |
| commit | f996fc9671d088bd5f52a70f18c64bfe3d0e418f (patch) | |
| tree | 3d88b5adfa21fc71cbabb9a891d37b0c1ce1c692 /kernel/power/hibernate.c | |
| parent | 05aa55dddb9ee4045c320661068bea78dad6a6e5 (diff) | |
PM / Hibernate: Compress hibernation image with LZO
Compress hibernation image with LZO in order to save on I/O and
therefore time to hibernate/thaw.
[rjw: Added hibernate=nocompress command line option instead of just
nocompress which would be confusing, fixed a couple of compiler
warnings, fixed kerneldoc comments, minor cleanups.]
Signed-off-by: Bojan Smojver <bojan@rexursive.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'kernel/power/hibernate.c')
| -rw-r--r-- | kernel/power/hibernate.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 8dc31e02ae12..6c9c9dc48c75 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -29,6 +29,7 @@ #include "power.h" +static int nocompress = 0; static int noresume = 0; static char resume_file[256] = CONFIG_PM_STD_PARTITION; dev_t swsusp_resume_device; @@ -638,6 +639,8 @@ int hibernate(void) if (hibernation_mode == HIBERNATION_PLATFORM) flags |= SF_PLATFORM_MODE; + if (nocompress) + flags |= SF_NOCOMPRESS_MODE; pr_debug("PM: writing image.\n"); error = swsusp_write(flags); swsusp_free(); @@ -1004,6 +1007,15 @@ static int __init resume_offset_setup(char *str) return 1; } +static int __init hibernate_setup(char *str) +{ + if (!strncmp(str, "noresume", 8)) + noresume = 1; + else if (!strncmp(str, "nocompress", 10)) + nocompress = 1; + return 1; +} + static int __init noresume_setup(char *str) { noresume = 1; @@ -1013,3 +1025,4 @@ static int __init noresume_setup(char *str) __setup("noresume", noresume_setup); __setup("resume_offset=", resume_offset_setup); __setup("resume=", resume_setup); +__setup("hibernate=", hibernate_setup); |