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| author | Tina Ruchandani <ruchandani.tina@gmail.com> | 2014-10-30 22:35:01 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-10-30 22:41:59 +0100 |
| commit | 9056be30542bfff51190bdda67088f319cf4c9f5 (patch) | |
| tree | 188e27d7ab51cb974b8ef7d92084a9232701a157 /mm/rmap.c | |
| parent | staging: unisys: virtpci: Adjust lines to contain a maximum of 80 characters (diff) | |
| download | linux-9056be30542bfff51190bdda67088f319cf4c9f5.tar.xz linux-9056be30542bfff51190bdda67088f319cf4c9f5.zip | |
Staging: lustre: lnet: lnet: Better cookie gen
api-ni.c uses do_gettimeofday to get a 'cookie' or timestamp.
This patch replaces it with ktime_get_ns for the following reasons:
1. ktime_get_ns returns a __u64 which is safer than 'struct timeval'
which will overflow on 32-bit systems in year 2038 and beyond.
2. Improved resolution: nsecs instead of usecs.
3. Reduced compute: ktime_get_ns is faster than the multiply/add
combination used in this function
Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm/rmap.c')
0 files changed, 0 insertions, 0 deletions