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author | Linus Torvalds <torvalds@linux-foundation.org> | 2025-08-02 09:52:53 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2025-08-02 09:52:53 -0700 |
commit | 7061835997daba9e73c723c85bd70bc4c44aef77 (patch) | |
tree | 54fd09c443b298e9e3b48b07d1731d53f5a12e29 /drivers/gpu/drm/amd/amdgpu/amdgpu_ip.h | |
parent | a6923c06a3b2e2c534ae28c53a7531e76cc95cfa (diff) | |
parent | 95a042a0c8ecd3c1e886648f6f6ab9c7e4403db9 (diff) |
Merge tag 'firewire-updates-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire updates from Takashi Sakamoto:
"This update replaces the remaining tasklet usage in the FireWire
subsystem with workqueue for asynchronous packet transmission. With
this change, tasklets are now fully eliminated from the subsystem.
Asynchronous packet transmission is used for serial bus topology
management as well as for the operation of the SBP-2 protocol driver
(firewire-sbp2). To ensure reliability during low-memory conditions,
the associated workqueue is created with the WQ_MEM_RECLAIM flag,
allowing it to participate in memory reclaim paths. Other attributes
are aligned with those used for isochronous packet handling, which was
migrated to workqueues in v6.12.
The workqueues are sleepable and support preemptible work items,
making them more suitable for real-time workloads that benefit from
timely task preemption at the system level.
There remains an issue where 'schedule()' may be called within an RCU
read-side critical section, due to a direct replacement of
'tasklet_disable_in_atomic()' with 'disable_work_sync()'. A proposed
fix for this has been posted[1], and is currently under review and
testing. It is expected to be sent upstream later"
Link: https://lore.kernel.org/lkml/20250728015125.17825-1-o-takashi@sakamocchi.jp/ [1]
* tag 'firewire-updates-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: ohci: reduce the size of common context structure by extracting members into AT structure
firewire: core: minor code refactoring to localize table of gap count
firewire: ohci: use workqueue to handle events of AT request/response contexts
firewire: ohci: use workqueue to handle events of AR request/response contexts
firewire: core: allocate workqueue for AR/AT request/response contexts
firewire: core: use from_work() macro to expand parent structure of work_struct
firewire: ohci: use from_work() macro to expand parent structure of work_struct
firewire: ohci: correct code comments about bus_reset tasklet
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ip.h')
0 files changed, 0 insertions, 0 deletions