Files
Centos-kernel-stream-9/drivers/accel
José Expósito a9e35855f1 accel/ivpu: Fix race condition when unbinding BOs
JIRA: https://issues.redhat.com/browse/RHEL-135337

commit d71333ffdd3707d84cfb95acfaf8ba892adc066b
Author: Tomasz Rusinowicz <tomasz.rusinowicz@intel.com>
Date:   Wed Oct 29 08:14:51 2025 +0100

    accel/ivpu: Fix race condition when unbinding BOs

    [ Upstream commit 00812636df370bedf4e44a0c81b86ea96bca8628 ]

    Fix 'Memory manager not clean during takedown' warning that occurs
    when ivpu_gem_bo_free() removes the BO from the BOs list before it
    gets unmapped. Then file_priv_unbind() triggers a warning in
    drm_mm_takedown() during context teardown.

    Protect the unmapping sequence with bo_list_lock to ensure the BO is
    always fully unmapped when removed from the list. This ensures the BO
    is either fully unmapped at context teardown time or present on the
    list and unmapped by file_priv_unbind().

    Fixes: 48aea7f2a2ef ("accel/ivpu: Fix locking in ivpu_bo_remove_all_bos_from_context()")
    Signed-off-by: Tomasz Rusinowicz <tomasz.rusinowicz@intel.com>
    Reviewed-by: Jeff Hugo <jeff.hugo@oss.qualcomm.com>
    Signed-off-by: Karol Wachowski <karol.wachowski@linux.intel.com>
    Link: https://patch.msgid.link/20251029071451.184243-1-karol.wachowski@linux.intel.com
    Signed-off-by: Sasha Levin <sashal@kernel.org>

Signed-off-by: José Expósito <jexposit@redhat.com>
2026-01-16 17:48:17 +01:00
..