io-wq: Fix io_wq_worker_affinity()
authorPeter Zijlstra <peterz@infradead.org>
Thu, 8 Apr 2021 09:44:50 +0000 (11:44 +0200)
committerJens Axboe <axboe@kernel.dk>
Mon, 12 Apr 2021 01:30:40 +0000 (19:30 -0600)
commite0051d7d18e0b3e25195ab332beea1a1a2fba5ca
tree10b9dbeb549c4f60a681525901a725205e127f4c
parentcb3b200e4f66524d03d6410dd51bcf42f265a4d0
io-wq: Fix io_wq_worker_affinity()

Do not include private headers and do not frob in internals.

On top of that, while the previous code restores the affinity, it
doesn't ensure the task actually moves there if it was running,
leading to the fun situation that it can be observed running outside
of its allowed mask for potentially significant time.

Use the proper API instead.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/YG7QkiUzlEbW85TU@hirez.programming.kicks-ass.net
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io-wq.c