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| author |   Nathan Lynch <nathan.lynch@amd.com> | 2025-04-03 11:24:19 -0500 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2025-04-17 15:06:02 +0530 |
| commit | df180e65305f8c1e020d54bfc2132349fd693de1 (patch) | |
| tree | 14ec63b9bf29d43961542fd958a2f6811076a4a2 /scripts/lib/kdoc/kdoc_files.py | |
| parent | dmaengine: idxd: cdev: Fix uninitialized use of sva in idxd_cdev_open (diff) | |
| download | linux-rng-df180e65305f8c1e020d54bfc2132349fd693de1.tar.xz linux-rng-df180e65305f8c1e020d54bfc2132349fd693de1.zip | |
dmaengine: Revert "dmaengine: dmatest: Fix dmatest waiting less when interrupted"
Several issues with this change:
* The analysis is flawed and it's unclear what problem is being
fixed. There is no difference between wait_event_freezable_timeout()
and wait_event_timeout() with respect to device interrupts. And of
course "the interrupt notifying the finish of an operation happens
during wait_event_freezable_timeout()" -- that's how it's supposed
to work.
* The link at the "Closes:" tag appears to be an unrelated
use-after-free in idxd.
* It introduces a regression: dmatest threads are meant to be
freezable and this change breaks that.
See discussion here:
https://lore.kernel.org/dmaengine/878qpa13fe.fsf@AUSNATLYNCH.amd.com/
Fixes: e87ca16e9911 ("dmaengine: dmatest: Fix dmatest waiting less when interrupted")
Signed-off-by: Nathan Lynch <nathan.lynch@amd.com>
Link: https://lore.kernel.org/r/20250403-dmaengine-dmatest-revert-waiting-less-v1-1-8227c5a3d7c8@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'scripts/lib/kdoc/kdoc_files.py')
0 files changed, 0 insertions, 0 deletions