Commit Graph

4 Commits

Author SHA1 Message Date
Daniel Leung ae86519819 kernel: mmu: collect more demand paging statistics
This adds more bits to gather statistics on demand paging,
e.g. clean vs dirty pages evicted, # page faults with
IRQ locked/unlocked, etc.

Also extends this to gather per-thread demand paging
statistics.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
2021-04-06 16:43:55 -04:00
Andy Ross 6fb6d3cfbe kernel: Add new k_thread_abort()/k_thread_join()
Add a newer, much smaller and simpler implementation of abort and
join.  No need to involve the idle thread.  No need for a special code
path for self-abort.  Joining a thread and waiting for an aborting one
to terminate elsewhere share an implementation.  All work in both
calls happens under a single locked path with no unexpected
synchronization points.

This fixes a bug with the current implementation where the action of
z_sched_single_abort() was nonatomic, releasing the lock internally at
a point where the thread to be aborted could self-abort and confuse
the state such that it failed to abort at all.

Note that the arm32 and native_posix architectures, which have their
own thread abort implementations, now see a much simplified
"z_thread_abort()" internal API.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2021-02-24 16:39:15 -05:00
Andy Ross c0c8cb0e97 kernel: Remove abort and join implementation (UNBISECTABLE)
THIS COMMIT DELIBERATELY BREAKS BISECTABILITY FOR EASE OF REVIEW.
SKIP IF YOU LAND HERE.

Remove the existing implementatoin of k_thread_abort(),
k_thread_join(), and the attendant facilities in the thread subsystem
and idle thread that support them.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
2021-02-24 16:39:15 -05:00
Anas Nashif fc1b5de4c3 kernel: move thread definitions to thread.h
Move thread definitions to its own header to avoid redeclaration and
redefinition of types which is not allowed in some standards.

Fixes #29937

Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2021-01-13 18:18:42 -05:00