nuttx

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raiden00pl 5a209a853e sched/wqueue: restore -ENOENT from work_cancel() for unqueued work

work_cancel() used to return -ENOENT when the work structure was not
in the queue, and callers depend on that: aio_cancel() tears down the
AIO container (file_put() + aioc_free()) only when work_cancel()
reports success, because a work item that is not queued may already be
executing on a worker thread (see the comment in fs/aio/aio_cancel.c).

Since commit 6f72f5481d ("sched/wqueue: Refactor delayed and periodical
workqueue") work_cancel() returns OK unconditionally, and commit
d2e01b9055 ("sched/wqueue: harden custom queue lifecycle") kept that
behaviour and dropped -ENOENT from the function documentation.  Under
SMP the LTP aio_cancel tests then free the aio container and its file
while the lpwork thread is still executing aio_write_worker() on it,
which ends in a page fault in file_write() (f_inode == NULL) and a
panic.

Return -ENOENT again when the work is not queued, and document it.
For the synchronous variant "not queued" alone does not tell whether
the callback is running: the worker scan does, so report OK when a
running callback was found and waited for, and -ENOENT only when the
work was neither queued nor running.

Assisted-by: Claude Code
Signed-off-by: raiden00pl <raiden00@railab.me>

2026-09-13 11:31:41 +08:00

addrenv

nuttx/atomic: replace atomic_fetch_xxx with atomic_xxx just like zephyr

2026-08-24 13:20:45 +08:00

clock

sched/clock: Fix timekeeping adjtime convergence.

2026-09-13 11:12:56 +08:00

environ

sched/environ: Serialize clearenv updates.

2026-09-09 10:22:01 +08:00

event

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