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| author |   Matt Fleming <matt@codeblueprint.co.uk> | 2016-10-26 16:15:44 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-01-30 11:46:35 +0100 |
| commit | 4d25b35ea3729affd37d69c78191ce6f92766e1a (patch) | |
| tree | 013c49fa232779343680d3c8dd21871809dafd54 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | sched/core: Add missing update_rq_clock() call in sched_move_task() (diff) | |
| download | linux-dev-4d25b35ea3729affd37d69c78191ce6f92766e1a.tar.xz linux-dev-4d25b35ea3729affd37d69c78191ce6f92766e1a.zip | |
sched/fair: Restore previous rq_flags when migrating tasks in hotplug
__migrate_task() can return with a different runqueue locked than the
one we passed as an argument. So that we can repin the lock in
migrate_tasks() (and keep the update_rq_clock() bit) we need to
restore the old rq_flags before repinning.
Note that it wouldn't be correct to change move_queued_task() to repin
because of the change of runqueue and the fact that having an
up-to-date clock on the initial rq doesn't mean the new rq has one
too.
Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions