diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2007-03-24 23:02:49 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-03-24 15:45:53 -0700 |
| commit | d9a5c0a4e0b4c84850a1a5bbacba3f7858b67037 (patch) | |
| tree | 5efaefd34302050ef6d530dafc20635c7ad2842b /include/asm-xtensa/hw_irq.h | |
| parent | 8fb303c7f1118b0a82aa08e33429adf9b5ad192c (diff) | |
| download | linux-3.10-d9a5c0a4e0b4c84850a1a5bbacba3f7858b67037.tar.gz linux-3.10-d9a5c0a4e0b4c84850a1a5bbacba3f7858b67037.tar.bz2 linux-3.10-d9a5c0a4e0b4c84850a1a5bbacba3f7858b67037.zip | |
[PATCH] i386: Prevent early access to TSC to avoid crash on TSCless systems
commit f9690982b8c2f9a2c65acdc113e758ec356676a3 removed the check for
cpu_khz from sched_clock(), which prevented early access to the TSC by
non obvious magic.
This is harmless as long as the CPU has a TSC. On TSCless systems this
results in an illegal instruction trap.
Replace tsc_disabled and tsc_unstable by tsc_enabled, which is only set
when the tsc is available and not unstable.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/asm-xtensa/hw_irq.h')
0 files changed, 0 insertions, 0 deletions