diff options
| author | Frederic Weisbecker <frederic@kernel.org> | 2019-11-08 17:08:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-11-11 09:03:31 +0100 |
| commit | feb4a51323babe13315c3b783ea7f1cf25368918 (patch) | |
| tree | 5ff36d9d23ddfc23be5bee4caf1c7cb6b8242024 /kernel/dma.c | |
| parent | 25269871db1ad0cbbaafd5098cbdb40c8db4ccb9 (diff) | |
irq_work: Slightly simplify IRQ_WORK_PENDING clearing
Instead of fetching the value of flags and perform an xchg() to clear
a bit, just use atomic_fetch_andnot() that is more suitable to do that
job in one operation while keeping the full ordering.
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E . McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191108160858.31665-4-frederic@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/dma.c')
0 files changed, 0 insertions, 0 deletions