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| author | Bojan Smojver <bojan@rexursive.com> | 2011-10-13 23:58:07 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2011-10-16 23:30:38 +0200 |
| commit | 081a9d043c983f161b78fdc4671324d1342b86bc (patch) | |
| tree | 4382d88e5705b18a95471af2a71319401c47744f /kernel/power/power.h | |
| parent | d231ff1af70a2df43d809173cf8c94e9c3beb853 (diff) | |
| download | linux-081a9d043c983f161b78fdc4671324d1342b86bc.tar.gz linux-081a9d043c983f161b78fdc4671324d1342b86bc.tar.bz2 linux-081a9d043c983f161b78fdc4671324d1342b86bc.zip | |
PM / Hibernate: Improve performance of LZO/plain hibernation, checksum image
Use threads for LZO compression/decompression on hibernate/thaw.
Improve buffering on hibernate/thaw.
Calculate/verify CRC32 of the image pages on hibernate/thaw.
In my testing, this improved write/read speed by a factor of about two.
Signed-off-by: Bojan Smojver <bojan@rexursive.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'kernel/power/power.h')
| -rw-r--r-- | kernel/power/power.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/power/power.h b/kernel/power/power.h index e6206397ce67..23a2db1ec442 100644 --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -146,6 +146,7 @@ extern int swsusp_swap_in_use(void); */ #define SF_PLATFORM_MODE 1 #define SF_NOCOMPRESS_MODE 2 +#define SF_CRC32_MODE 4 /* kernel/power/hibernate.c */ extern int swsusp_check(void); |