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Rev Age Author Path Log message Diff
4490 5682 d 7 h decky /trunk/kernel/ remove redundant index_t and count_t types (which were always quite ambiguous and not actually needed)  
3790 5828 d 15 h svoboda /trunk/kernel/ Make newlines in panic messages consistent. Add periods at end of messages so that it is obvious whether they are printed entirely.  
3181 6029 d 16 h jermar /trunk/kernel/generic/src/ cstyle for kinit.c and scheduler.c  
3062 6047 d 12 h decky /trunk/kernel/generic/src/proc/ proper printf formatting  
2451 6412 d 7 h jermar /trunk/kernel/generic/ JoinMe -> Lingering  
2446 6415 d 11 h jermar /trunk/kernel/generic/ More efficient and simpler task termination.

Based on the assumption, that after its creation, only the task itself can create more threads for itself,
the last thread with userspace context to execute thread_exit() will perform futex and IPC cleanup. When
the task has no threads, it is destroyed. Both the cleanup and destruction is controlled by reference
counting.

As for userspace threads, even though there could be a global garbage collector for joining threads, it is
much simpler if the uinit thread detaches itself before switching to userspace.

task_kill() is now an idempotent operation. It just instructs the threads within a task to exit.

Change in the name of a thread state: Undead -> JoinMe.
 
2310 6440 d 8 h jermar /trunk/kernel/generic/ Cleanup the waitq_wakeup() interface.
Replace numeric constants (i.e. 0)
and boolean constants (i.e. false) with
more readable WAKEUP_FIRST. Also change the
type of the second argument of waitq_wakeup()
to a newly introduced type wakeup_mode_t.

Fix behaviour of waitq_wakeup() in case
that WAKEUP_ALL semantics is required
but no threads are sleeping in the wait
queue. This is a similar fix to that of
Jan Hudecek committed in the RCU branch,
but, IMHO, is more straightforward and
also doesn't eat up previous missed
wakeups.
 
2285 6452 d 16 h jermar /trunk/kernel/generic/src/proc/ Formatting and indentation fixes.  
2216 6470 d 7 h decky /trunk/ make thread ID 64 bit (task ID is 64 bit already)
cleanup thread syscalls
 
2183 6472 d 11 h jermar /trunk/kernel/generic/ Continue to de-oversynchronize the kernel.
- replace as->refcount with an atomic counter; accesses to this
reference counter are not to be done when the as->lock mutex is held;
this gets us rid of mutex_lock_active();

Remove the possibility of a deadlock between TLB shootdown and asidlock.
- get rid of mutex_lock_active() on as->lock
- when locking the asidlock spinlock, always do it conditionally and with
preemption disabled; in the unsuccessful case, enable interrupts and try again
- there should be no deadlock between TLB shootdown and the as->lock mutexes
- PLEASE REVIEW !!!

Add DEADLOCK_PROBE's to places where we have spinlock_trylock() loops.
 
2118 6531 d 12 h decky /trunk/kernel/generic/src/ explicit typecast, fix signed/unsigned comparison  
2089 6539 d 14 h decky /trunk/ huge type system cleanup
remove cyclical type dependencies across multiple header files
many minor coding style fixes
 
2087 6540 d 10 h jermar /trunk/kernel/ Indentaion and formatting changes even Martin will like :-)  
2071 6550 d 6 h jermar /trunk/ (c) versus (C)  
2068 6557 d 14 h jermar /trunk/kernel/ Formatting and indentation fixes.  
2067 6560 d 12 h jermar /trunk/kernel/ More formatting changes.  
2040 6584 d 13 h decky /trunk/kernel/generic/src/proc/ add forgotten btree_remove()  
2030 6585 d 15 h decky /trunk/kernel/ thread CPU cycles accounting  
1888 6675 d 10 h jermar /trunk/ C99 compliant header guards (hopefully) everywhere in the kernel.
Formatting and indentation changes.
Small improvements in sparc64.
 
1882 6676 d 14 h jermar /trunk/kernel/ Support for sparc64 FPU context.  

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