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| author | Will Deacon <will@kernel.org> | 2021-07-30 12:24:32 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-08-20 12:32:59 +0200 |
| commit | 234a503e670be01f72841be9fcf68dfb89a1fa8b (patch) | |
| tree | ee867fb4f0dc0afd94d240eb949e4d569b85e4d8 /init/init_task.c | |
| parent | 97c0054dbe2c3c59d1156fd233f2d44e91981c8e (diff) | |
| download | linux-234a503e670be01f72841be9fcf68dfb89a1fa8b.tar.bz2 | |
sched: Reject CPU affinity changes based on task_cpu_possible_mask()
Reject explicit requests to change the affinity mask of a task via
set_cpus_allowed_ptr() if the requested mask is not a subset of the
mask returned by task_cpu_possible_mask(). This ensures that the
'cpus_mask' for a given task cannot contain CPUs which are incapable of
executing it, except in cases where the affinity is forced.
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Valentin Schneider <Valentin.Schneider@arm.com>
Reviewed-by: Quentin Perret <qperret@google.com>
Link: https://lore.kernel.org/r/20210730112443.23245-6-will@kernel.org
Diffstat (limited to 'init/init_task.c')
0 files changed, 0 insertions, 0 deletions