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| author |   Anton Vorontsov <avorontsov@ru.mvista.com> | 2010-02-18 16:43:12 +0300 |
|---|---|---|
| committer |   Kumar Gala <galak@kernel.crashing.org> | 2010-03-04 10:42:58 -0600 |
| commit | 43a5a01bcc5b53c67878f043b4a1b31eaa87a360 (patch) | |
| tree | 07710fadf2f196d252854c067db588a526f291fc /arch/powerpc/sysdev | |
| parent | powerpc/82xx: Convert pci_pic_lock to raw_spinlock (diff) | |
| download | linux-dev-43a5a01bcc5b53c67878f043b4a1b31eaa87a360.tar.xz linux-dev-43a5a01bcc5b53c67878f043b4a1b31eaa87a360.zip | |
powerpc/qe: Convert qe_ic_lock to raw_spinlock
Interrupt controllers' hooks are executed in the atomic context, so
they are not permitted to sleep (with RT kernels non-raw spinlocks are
sleepable). So, qe_ic_lock has to be a real (non-sleepable) spinlock.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/sysdev')
| -rw-r--r-- | arch/powerpc/sysdev/qe_lib/qe_ic.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c index d927da893ec4..541ba9863647 100644 --- a/arch/powerpc/sysdev/qe_lib/qe_ic.c +++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c @@ -33,7 +33,7 @@ #include "qe_ic.h" -static DEFINE_SPINLOCK(qe_ic_lock); +static DEFINE_RAW_SPINLOCK(qe_ic_lock); static struct qe_ic_info qe_ic_info[] = { [1] = { @@ -201,13 +201,13 @@ static void qe_ic_unmask_irq(unsigned int virq) unsigned long flags; u32 temp; - spin_lock_irqsave(&qe_ic_lock, flags); + raw_spin_lock_irqsave(&qe_ic_lock, flags); temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].mask_reg); qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg, temp | qe_ic_info[src].mask); - spin_unlock_irqrestore(&qe_ic_lock, flags); + raw_spin_unlock_irqrestore(&qe_ic_lock, flags); } static void qe_ic_mask_irq(unsigned int virq) @@ -217,7 +217,7 @@ static void qe_ic_mask_irq(unsigned int virq) unsigned long flags; u32 temp; - spin_lock_irqsave(&qe_ic_lock, flags); + raw_spin_lock_irqsave(&qe_ic_lock, flags); temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].mask_reg); qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg, @@ -233,7 +233,7 @@ static void qe_ic_mask_irq(unsigned int virq) */ mb(); - spin_unlock_irqrestore(&qe_ic_lock, flags); + raw_spin_unlock_irqrestore(&qe_ic_lock, flags); } static struct irq_chip qe_ic_irq_chip = { |