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| author | Jeff Garzik <jeff@garzik.org> | 2006-03-30 00:18:49 +0200 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2006-03-30 00:18:49 +0200 |
| commit | e02a4cabfcb9a999b74a2e2e6f13ffcb7ff2d606 (patch) | |
| tree | 2f3db60be4c57eca2a4c3ab3f3122dcf1ec0c624 /arch/x86_64/kernel/pmtimer.c | |
| parent | [PATCH] libata: add FIXME above ata_dev_xfermask() (diff) | |
| parent | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 (diff) | |
| download | linux-e02a4cabfcb9a999b74a2e2e6f13ffcb7ff2d606.tar.xz linux-e02a4cabfcb9a999b74a2e2e6f13ffcb7ff2d606.zip | |
Merge branch 'master'
Diffstat (limited to 'arch/x86_64/kernel/pmtimer.c')
| -rw-r--r-- | arch/x86_64/kernel/pmtimer.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/x86_64/kernel/pmtimer.c b/arch/x86_64/kernel/pmtimer.c index 5c51d10408a6..ee5ee4891f3d 100644 --- a/arch/x86_64/kernel/pmtimer.c +++ b/arch/x86_64/kernel/pmtimer.c @@ -86,7 +86,7 @@ static unsigned pmtimer_wait_tick(void) for (a = b = inl(pmtmr_ioport) & ACPI_PM_MASK; a == b; b = inl(pmtmr_ioport) & ACPI_PM_MASK) - ; + cpu_relax(); return b; } @@ -97,6 +97,7 @@ void pmtimer_wait(unsigned us) a = pmtimer_wait_tick(); do { b = inl(pmtmr_ioport); + cpu_relax(); } while (cyc2us(b - a) < us); } |