diff options
| author | Thomas Gleixner <[email protected]> | 2012-03-06 22:18:54 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2012-03-07 00:46:39 +0000 |
| commit | 52abb700e16a9aa4cbc03f3d7f80206cbbc80680 (patch) | |
| tree | f396df08518ff22039d2c4da153cba029f01ecd2 /fs/jbd/commit.c | |
| parent | mmap: EINVAL not ENOMEM when rejecting VM_GROWS (diff) | |
| download | kernel-52abb700e16a9aa4cbc03f3d7f80206cbbc80680.tar.gz kernel-52abb700e16a9aa4cbc03f3d7f80206cbbc80680.zip | |
genirq: Clear action->thread_mask if IRQ_ONESHOT is not set
Xommit ac5637611(genirq: Unmask oneshot irqs when thread was not woken)
fails to unmask when a !IRQ_ONESHOT threaded handler is handled by
handle_level_irq.
This happens because thread_mask is or'ed unconditionally in
irq_wake_thread(), but for !IRQ_ONESHOT interrupts never cleared. So
the check for !desc->thread_active fails and keeps the interrupt
disabled.
Keep the thread_mask zero for !IRQ_ONESHOT interrupts.
Document the thread_mask magic while at it.
Reported-and-tested-by: Sven Joachim <[email protected]>
Reported-and-tested-by: Stefan Lippers-Hollmann <[email protected]>
Cc: [email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'fs/jbd/commit.c')
0 files changed, 0 insertions, 0 deletions