diff options
| author | Len Brown <[email protected]> | 2015-11-22 18:16:15 -0500 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2015-11-23 09:08:33 +0100 |
| commit | 2fde46b79e2fdbc90d0d97cf992782732b5a371c (patch) | |
| tree | b98b4ca898b9f55111f9921b46bdc729042e6955 /tools/perf/scripts/python | |
| parent | 72613184a1f076659e8a902d64351f50d3f9c990 (diff) | |
x86/smpboot: Re-enable init_udelay=0 by default on modern CPUs
Fix a Linux-4.3 corner case performance regression, introduced by commit:
f1ccd249319e ("x86/smpboot: Fix cpu_init_udelay=10000 corner case boot parameter misbehavior")
which allowed the cmdline "cpu_init_udelay=" to work with all values,
including the default of 10000.
But in setting the default of 10000, it over-rode the code stat sets
the delay 0 on modern processors.
Also, tidy up use of INT/UINT.
Reported-by: Shane <[email protected]>
Signed-off-by: Len Brown <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/9082eb809ef40dad02db714759c7aaf618c518d4.1448232494.git.len.brown@intel.com
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions