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| author |   Andreas Larsson <andreas@gaisler.com> | 2013-06-10 08:53:28 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2013-06-19 02:10:29 -0700 |
| commit | 1ffbc51a0d00e52983c70aa7c8dbc7b621d6287d (patch) | |
| tree | 3b5e0a1a91a2dfde1b93d2d3295d1170ffe2bae3 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | sparc: kernel: using strlcpy() instead of strcpy() (diff) | |
| download | linux-dev-1ffbc51a0d00e52983c70aa7c8dbc7b621d6287d.tar.xz linux-dev-1ffbc51a0d00e52983c70aa7c8dbc7b621d6287d.zip | |
sparc32, leon: Remove separate "ticker" timer for SMP
This reduces the need from two timers to one timer.
Moreover, without this patch, when the "ticker" timer triggers timer_cs_read via
tick_periodic it reads the value of the usual timer it can get an wrapped timer
value without timer_cs_internal_counter having been updated leading to the clock
going backwards. This effectively hangs one cpu that gets stuck in
update_wall_time with an offset slightly smaller than 0xffffffffffffffff.
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions