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| author | Peter Zijlstra <peterz@infradead.org> | 2021-08-24 11:05:47 +0200 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-10-05 15:51:33 +0200 |
| commit | bc9ffef31bf59819c9fc032178534ff9ed7c4981 (patch) | |
| tree | bc429b08b7beba8f18d90aa38d10e1270250fc1a /fs/proc | |
| parent | c33627e9a1143afb988fb98d917c4a2faa16f9d9 (diff) | |
| download | lwn-bc9ffef31bf59819c9fc032178534ff9ed7c4981.tar.gz lwn-bc9ffef31bf59819c9fc032178534ff9ed7c4981.zip | |
sched/core: Simplify core-wide task selection
Tao suggested a two-pass task selection to avoid the retry loop.
Not only does it avoid the retry loop, it results in *much* simpler
code.
This also fixes an issue spotted by Josh Don where, for SMT3+, we can
forget to update max on the first pass and get to do an extra round.
Suggested-by: Tao Zhou <tao.zhou@linux.dev>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Josh Don <joshdon@google.com>
Reviewed-by: Vineeth Pillai (Microsoft) <vineethrp@gmail.com>
Link: https://lkml.kernel.org/r/YSS9+k1teA9oPEKl@hirez.programming.kicks-ass.net
Diffstat (limited to 'fs/proc')
0 files changed, 0 insertions, 0 deletions