Commit Graph

10 Commits

Author SHA1 Message Date
Alin Jerpelea eb9030c891 sched: migrate to SPDX identifier
Most tools used for compliance and SBOM generation use SPDX identifiers
This change brings us a step closer to an easy SBOM generation.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2024-09-12 01:10:14 +08:00
Jiuzhu Dong 855c78bb9d work_queue: schedule the work queue using the timer mechanism
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2021-07-27 21:01:38 -07:00
Jiuzhu Dong a0c3a0923a sched/wqueue: merge kwork_lpthread.c and kwork_hpthread.c to kwork_thread.c
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2021-07-27 21:01:38 -07:00
Gregory Nutt 45b8e3ce7f sched/wqueue: Update to Apache 2.0 headers.
Also run files through nxstyle to assurand coding standard compliance.
2020-03-11 18:39:53 -03:00
Gregory Nutt 4cb61bd8c2 sched/wqueue: Notifier design cleanup. The original concept used pre-allocated notification data structures. However, the notification dat must persist for an indeterminate amount of time. So the design was modified to use dynamically allocted data structures. This commit simplifies the design by removed some residual 'machinery' that is no longer needed. 2018-09-10 06:29:51 -06:00
Gregory Nutt 9d3148406c Signals were not a good choice of IPC to implement the poll function for several reasons: In order to handle the asynchrnous poll-related event, a substantial amount of state information is needed. Signals are only capable of passing minimal amounts of data. There are also complexities with performing kernel space signal handlers in kernel space code that is better to avoid. So, instead of signals, the equivalent logic was converted to run via a callback that executes on the high-priority work queue.
Squashed commit of the following:

    Fix up some final compile isses.

    net/netdev:  Convert the network down notification logic to use the new wqueue-based notification factility.

    net/udp:  Convert the UDP readahead notification logic to use the new wqueue-based notification factility.

    net/tcp:  Convert the TCP readahead notification logic to use the new wqueue-based notification factility.

    mm/iob:  Convert the IOB notification logic to use the new wqueue-based notification factility.

    sched/wqueue:  Signals are not good IPCs to support the target poll functionality for several reasons including the amount of data that can be passed with a signal and in the fact that in protected and kernel modes, user threads executing signal handlers in protected, kernel memory is problematic.  Instead, convert the same logic to perform the notifications via function callback on the high priority work queue.
2018-09-09 15:01:44 -06:00
Gregory Nutt cf59a195ba User-mode work queue logic should not disable interrupts 2014-10-10 14:52:04 -06:00
Gregory Nutt 1afc9773ac Decoupling work queue data structures. This is part of the preparation to support multiple low-priority worker threads 2014-10-10 08:35:58 -06:00
Gregory Nutt 6220256a09 Repartition work queue code. Move kernel-specific parts from libc/wqueue to sched/wqueue 2014-10-10 06:22:51 -06:00
Gregory Nutt d7843c8e24 Add support for priority inheritance on the low priority worker queue 2014-10-07 07:41:52 -06:00