]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[POWERPC] Fix problem with time not advancing on 32-bit platforms
authorPaul Mackerras <paulus@samba.org>
Wed, 30 Aug 2006 05:55:32 +0000 (15:55 +1000)
committerPaul Mackerras <paulus@samba.org>
Wed, 30 Aug 2006 06:09:43 +0000 (16:09 +1000)
commite0d872d536bb93335d5905b09fe374a163486d43
treec308e65872d65698095077cbfe36f38aa6da5f6f
parentfea23bfefb4e98efd3c36f00ccc0b60281dc99da
[POWERPC] Fix problem with time not advancing on 32-bit platforms

This fixes a problem introduced in 5db9fa9593e2ff69f2b95f9d59229dc4faaa564d.
The last_jiffy per-cpu variable is only 32 bits on 32-bit machines, but it
was being compared with a 64-bit quantity (tb_next_jiffy), which resulted in
time not advancing.

This fixes it by changing last_jiffy to be 64 bits on all platforms.  With
this, we no longer need tb_last_stamp as a 32-bit version of tb_last_jiffy,
so this gets rid of tb_last_stamp and we just use tb_last_jiffy instead.
This also fixes a bug when the boot cpu is not online, because using
tb_last_stamp could have caused the wrong timebase origin value to be used
when calculating the time of day.

Signed-off-by: Paul Mackerras <paulus@samba.org>
arch/powerpc/kernel/time.c
include/asm-powerpc/time.h