diff options
| author |   David Daney <ddaney@caviumnetworks.com> | 2009-07-31 14:30:07 -0700 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2009-08-03 17:52:47 +0100 |
| commit | 39b3d44624e9c54e7406274beaf569fe33af2b96 (patch) | |
| tree | b23b957e972a1b0c8ecf0e16c4ae56061a31d949 /arch/mips/cavium-octeon/smp.c | |
| parent | MIPS: Jazz: Fix read buffer overflow (diff) | |
| download | linux-dev-39b3d44624e9c54e7406274beaf569fe33af2b96.tar.xz linux-dev-39b3d44624e9c54e7406274beaf569fe33af2b96.zip | |
MIPS: Octeon: Run IPI code with interrupts disabled.
In mm/slab.c the function do_ccupdate_local requires that interrupts be
disabled. If they are not, we panic with CONFIG_DEBUG_SLAB.
So we disable interrupts while processing IPIs. Also these are not shared
irqs, so get rid of the IRQF_SHARED flag.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/cavium-octeon/smp.c')
| -rw-r--r-- | arch/mips/cavium-octeon/smp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c index 0b891a9c6253..32d51a31dc48 100644 --- a/arch/mips/cavium-octeon/smp.c +++ b/arch/mips/cavium-octeon/smp.c @@ -194,11 +194,11 @@ static void octeon_init_secondary(void) void octeon_prepare_cpus(unsigned int max_cpus) { cvmx_write_csr(CVMX_CIU_MBOX_CLRX(cvmx_get_core_num()), 0xffffffff); - if (request_irq(OCTEON_IRQ_MBOX0, mailbox_interrupt, IRQF_SHARED, + if (request_irq(OCTEON_IRQ_MBOX0, mailbox_interrupt, IRQF_DISABLED, "mailbox0", mailbox_interrupt)) { panic("Cannot request_irq(OCTEON_IRQ_MBOX0)\n"); } - if (request_irq(OCTEON_IRQ_MBOX1, mailbox_interrupt, IRQF_SHARED, + if (request_irq(OCTEON_IRQ_MBOX1, mailbox_interrupt, IRQF_DISABLED, "mailbox1", mailbox_interrupt)) { panic("Cannot request_irq(OCTEON_IRQ_MBOX1)\n"); } |