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| author | Eric W. Biederman <[email protected]> | 2021-03-21 15:37:48 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2021-03-21 15:41:07 +0000 |
| commit | 4db4b1a0d1779dc159f7b87feb97030ec0b12597 (patch) | |
| tree | 4a5fda2de8bfda249c99f791346d0f2faff9d4ed /drivers/acpi/cppc_acpi.c | |
| parent | signal: don't allow sending any signals to PF_IO_WORKER threads (diff) | |
| download | kernel-4db4b1a0d1779dc159f7b87feb97030ec0b12597.tar.gz kernel-4db4b1a0d1779dc159f7b87feb97030ec0b12597.zip | |
signal: don't allow STOP on PF_IO_WORKER threads
Just like we don't allow normal signals to IO threads, don't deliver a
STOP to a task that has PF_IO_WORKER set. The IO threads don't take
signals in general, and have no means of flushing out a stop either.
Longer term, we may want to look into allowing stop of these threads,
as it relates to eg process freezing. For now, this prevents a spin
issue if a SIGSTOP is delivered to the parent task.
Reported-by: Stefan Metzmacher <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Signed-off-by: "Eric W. Biederman" <[email protected]>
Diffstat (limited to 'drivers/acpi/cppc_acpi.c')
0 files changed, 0 insertions, 0 deletions