34cb275283
In a SMP case there was a race condition issue between
uio_pdrv_genirq_irqcontrol() running on one CPU and irq handler on
another CPU. Fix it by spin_locking shared resources access inside irq
handler. Also:
- Change disable_irq to disable_irq_nosync to avoid deadlock, because
disable_irq waits for the completion of the irq handler;
- Change atomic bit-manipulation routines to their non-atomic
counterparts as we already are guarding the code by spinlock.
Signed-off-by: Vitalii Demianets <vitas@nppfactor.kiev.ua>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| uio.c | ||
| uio_aec.c | ||
| uio_cif.c | ||
| uio_dmem_genirq.c | ||
| uio_netx.c | ||
| uio_pci_generic.c | ||
| uio_pdrv.c | ||
| uio_pdrv_genirq.c | ||
| uio_pruss.c | ||
| uio_sercos3.c | ||