diff options
| author | Oleg Nesterov <oleg@tv-sign.ru> | 2006-08-29 09:15:14 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@nelson.home.kernel.dk> | 2006-09-30 20:31:18 +0200 |
| commit | 25034d7a83cf77667f3d65822484b305d4be6b25 (patch) | |
| tree | 7e4d432aae0cab93c22e692ceceffe2b5f7500d6 /Documentation/spi | |
| parent | 9bf09c23853bb8009625c2ec60dc6beb9472d3ca (diff) | |
[PATCH] exit_io_context: don't disable irqs
We don't need to disable irqs to clear current->io_context, it is protected
by ->alloc_lock. Even IF it was possible to submit I/O from IRQ on behalf of
current this irq_disable() can't help: current_io_context() will re-instantiate
->io_context after irq_enable().
We don't need task_lock() or local_irq_disable() to clear ioc->task. This can't
prevent other CPUs from playing with our io_context anyway.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/spi')
0 files changed, 0 insertions, 0 deletions