diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2011-02-07 10:34:30 +0100 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2011-02-19 12:58:09 +0100 |
commit | fe200ae48ef5c79bf7941fe8046ff9505c570ff6 (patch) | |
tree | 767d2cf011437a266a655ce2ec39360cb85f7f28 /include/linux/interrupt.h | |
parent | d05c65fff0ef672be75429266751f0e015b54d94 (diff) |
genirq: Mark polled irqs and defer the real handler
With the chip.end() function gone we might run into a situation where
a poll call runs and the real interrupt comes in, sees IRQ_INPROGRESS
and disables the line. That might be a perfect working one, which will
then be masked forever.
So mark them polled while the poll runs. When the real handler sees
IRQ_INPROGRESS it checks the poll flag and waits for the polling to
complete. Add the necessary amount of sanity checks to it to avoid
deadlocks.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/interrupt.h')
0 files changed, 0 insertions, 0 deletions