diff options
| author | Mikulas Patocka <[email protected]> | 2020-07-08 12:25:20 -0400 |
|---|---|---|
| committer | Mike Snitzer <[email protected]> | 2020-07-08 12:50:51 -0400 |
| commit | 6958c1c640af8c3f40fa8a2eee3b5b905d95b677 (patch) | |
| tree | 3ad740210f4672ce601d1f994b6eb8fcaa6f88ee /drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | |
| parent | 174364f6a8979655f71b04b6492657aec3762703 (diff) | |
dm: use noio when sending kobject event
kobject_uevent may allocate memory and it may be called while there are dm
devices suspended. The allocation may recurse into a suspended device,
causing a deadlock. We must set the noio flag when sending a uevent.
The observed deadlock was reported here:
https://www.redhat.com/archives/dm-devel/2020-March/msg00025.html
Reported-by: Khazhismel Kumykov <[email protected]>
Reported-by: Tahsin Erdogan <[email protected]>
Reported-by: Gabriel Krisman Bertazi <[email protected]>
Signed-off-by: Mikulas Patocka <[email protected]>
Cc: [email protected]
Signed-off-by: Mike Snitzer <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c')
0 files changed, 0 insertions, 0 deletions