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| author | Ralf Baechle <ralf@linux-mips.org> | 2010-03-10 16:16:04 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2010-04-12 17:26:09 +0100 |
| commit | abe5b417fb4a52e9510fdb5a16e722e91bf89e92 (patch) | |
| tree | b03b825507fb611837d831ba8a1425b0996ddd7f | |
| parent | b1cea3bab575af386618baba0db3c5fae7ce521f (diff) | |
| download | linux-3.10-abe5b417fb4a52e9510fdb5a16e722e91bf89e92.tar.gz linux-3.10-abe5b417fb4a52e9510fdb5a16e722e91bf89e92.tar.bz2 linux-3.10-abe5b417fb4a52e9510fdb5a16e722e91bf89e92.zip | |
MIPS: delay: Fix use of current_cpu_data in preemptable code.
This may lead to warnings like:
BUG: using smp_processor_id() in preemptible [00000000] code: reboot/1989
caller is __udelay+0x14/0x70
Call Trace:
[<ffffffff8110ad28>] dump_stack+0x8/0x34
[<ffffffff812dde04>] debug_smp_processor_id+0xf4/0x110
[<ffffffff812d90bc>] __udelay+0x14/0x70
[<ffffffff81378274>] md_notify_reboot+0x12c/0x148
[<ffffffff81161054>] notifier_call_chain+0x64/0xc8
[<ffffffff811614dc>] __blocking_notifier_call_chain+0x64/0xc0
[<ffffffff8115566c>] kernel_restart_prepare+0x1c/0x38
[<ffffffff811556cc>] kernel_restart+0x14/0x50
[<ffffffff8115581c>] SyS_reboot+0x10c/0x1f0
[<ffffffff81103684>] handle_sysn32+0x44/0x84
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| -rw-r--r-- | arch/mips/lib/delay.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/lib/delay.c b/arch/mips/lib/delay.c index 6b3b1de9dca..5995969e8c4 100644 --- a/arch/mips/lib/delay.c +++ b/arch/mips/lib/delay.c @@ -41,7 +41,7 @@ EXPORT_SYMBOL(__delay); void __udelay(unsigned long us) { - unsigned int lpj = current_cpu_data.udelay_val; + unsigned int lpj = raw_current_cpu_data.udelay_val; __delay((us * 0x000010c7ull * HZ * lpj) >> 32); } @@ -49,7 +49,7 @@ EXPORT_SYMBOL(__udelay); void __ndelay(unsigned long ns) { - unsigned int lpj = current_cpu_data.udelay_val; + unsigned int lpj = raw_current_cpu_data.udelay_val; __delay((ns * 0x00000005ull * HZ * lpj) >> 32); } |