litmus2008.git - [ARCHIVE] Old LITMUS^RT 2008 version (for reference).

	Commit message (Collapse)	Author	Age
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*	So far, this is what "works"...	John M. Calandrino	2007-05-09
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*	Removed some trace lines to improve readability.	John M. Calandrino	2007-05-09
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*	Development checkpoint. Still having issues.	John M. Calandrino	2007-05-09
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*	Various changes that I don't want to lose, but the code does not work.	John M. Calandrino	2007-05-09
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*	Some changes so that semaphores use correct wakeup functions.	John M. Calandrino	2007-05-03
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*	Fixed NULL pointer reference in gsnedf_inherit_priority.	John M. Calandrino	2007-05-02
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*	Fixing a case that arises during to priority inheritance (and maybe in	John M. Calandrino	2007-05-02
\| \| \| \|	other cases too?) in link_task_to_cpu.
*	Another handle_priority_change fix.	John M. Calandrino	2007-05-01
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*	Fixed some race conditions in the priority inheritance code, and fixed a	John M. Calandrino	2007-05-01
\| \| \| \|	glitch or two in GSN-EDF.
*	Fixed a bug in link_task_to_cpu; needed to check for NULL ptr.	John M. Calandrino	2007-04-30
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*	Fixed bug related to not initializing pointers to PI-related functions in	John M. Calandrino	2007-04-27
\| \| \| \|	curr_sched_plugin.
*	Made changes to protect empty queues from being traversed in	John M. Calandrino	2007-04-26
\| \| \| \|	semaphore-related calls.
*	Added some quantum alignment measurement capabilities, so that alignments	John M. Calandrino	2007-04-26
\| \| \| \|	could be re-validated after some changes.
*	Fixed some things so that it builds correctly.	John M. Calandrino	2007-04-25
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*	Fixed handling of changes in task priorities due to PI in GSN-EDF.	John M. Calandrino	2007-04-25
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*	Removed incomplete zone-based implementation.	John M. Calandrino	2007-04-25
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*	Merge with git+ssh://cvs.cs.unc.edu/cvs/proj/litmus/repo/litmus	John M. Calandrino	2007-04-25
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\| *	Fixed GSN-EDF job_arrival() function.	Bjoern B. Brandenburg	2007-04-25
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	Now the correct job is linked in case that a linked job lowers its priority. This could happen if a tardy job's successor is immediately released in the scheduler_tick() function. The preemption_needed() function was made more robust to handle NULL pointers correctly (needed for GSN-EDF).
* \|	Fixed a few comment inconsistencies. Added stubs for an SRP "semaphore",	John M. Calandrino	2007-04-25
\| \| \| \| \| \| \| \| \| \|	which needs to be expanded in the LSO and by adding system call numbers in kernel space.
* \|	Added code to handle case where a task priority is changed due to priority	John M. Calandrino	2007-04-24
\| \| \| \| \| \| \| \|	inheritance.
* \|	Fixed GSN-EDF to handle correct wakeup of tasks that just exited a	John M. Calandrino	2007-04-24
\| \| \| \| \| \| \| \|	semaphore.
* \|	Compiles. Woo! TODO: Fix GSN-EDF so it is suspension-friendly.	John M. Calandrino	2007-04-24
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* \|	Fixed a number of issues, subtle and otherwise, with PI semaphores.	John M. Calandrino	2007-04-24
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	PI semaphores now use scheduler callbacks to update priority on a down or up call. Issues with calling down/up and not calling __down_failed or __up_wakeup for PI semaphores has been noted (since priority-related things occured in those calls) and up has been fixed (down is in process). Callbacks are now responsible for the priority checks and updates, and some subtle cases are handled that were missed before. Still need to finish handling GSN-EDF implementation issues related to suspensions.
* \|	Reverted back to spinlocks, added code to higher priority code in	John M. Calandrino	2007-04-23
\| \| \| \| \| \| \| \|	edf-common.c, left other stubs untouched until tomorrow.
* \|	Updated priority check for EDF. Converting spinlocks to queuelocks, not yet	John M. Calandrino	2007-04-23
\| \| \| \| \| \| \| \|	complete.
* \|	Converting spinlocks to queuelocks in my code, and also fixing stubs... in	John M. Calandrino	2007-04-23
\| \| \| \| \| \| \| \|	process...
* \|	Merge with git+ssh://cvs.cs.unc.edu/cvs/proj/litmus/repo/litmus	John M. Calandrino	2007-04-23
\|\\| \| \| \| \| \| \| \| \|	Bjoern's changes + mine. Still need to fill in some stubs and ensure that nothing broke.
\| *	Three crash fixes.	Bjoern B. Brandenburg	2007-04-23
\| \| \| \| \| \| \| \| \| \| \| \|	- Use linked before it may become NULL. - Make sure task is properly unlinked in scheduler_tick() - Make sure task is properly unlinked before suspending.
\| *	Added stub for priority inheritance in GSN-EDF.	Bjoern B. Brandenburg	2007-04-23
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\| *	Add scheduler plugin callbacks for priority inheritance.	Bjoern B. Brandenburg	2007-04-23
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\| *	break deadlines in EDF schemes by PID	Bjoern B. Brandenburg	2007-04-23
\| \| \| \| \| \| \| \| \| \| \| \|	Adds the new priority comparison function edf_higher_prio(). By the use of PIDs priorities are now unique. The edf_common.c code uses the new function. Does not handle priority inheritance yet.
\| *	First somewhat stable version of GSN-EDF.	Bjoern B. Brandenburg	2007-04-18
\| \| \| \| \| \| \| \| \| \|	This version does not crash when executing real-time tasks. The non-preemptabe sections support is still untested.
\| *	Force rescheduling if a task leaves a np section is not linked.	Bjoern B. Brandenburg	2007-04-18
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\| *	Allow EDF domains to have a NULL resched_check.	Bjoern B. Brandenburg	2007-04-18
\| \| \| \| \| \| \| \|	This is a work around so that GSN-EDF can use the code, too.
\| *	Add boot option and ID for GSN-EDF.	Bjoern B. Brandenburg	2007-04-17
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\| *	add system calls sys_enter_np() and sys_exit_np()	Bjoern B. Brandenburg	2007-04-17
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\| *	Add enter_np/exit_np callbacks for non-preemptable sections support	Bjoern B. Brandenburg	2007-04-17
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\| *	A prelimenary, untested version of GSN-EDF.	Bjoern B. Brandenburg	2007-04-17
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\| *	Small compilation fix	Bjoern B. Brandenburg	2007-04-17
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\| *	Call curr_plugin->finish_switch() after every task switch.	Bjoern B. Brandenburg	2007-04-17
\| \| \| \| \| \| \| \| \| \|	GSN-EDF needs to be called after every task switch. This patch changes the existing plugins to handle the changed behavior.
\| *	Add unlocked functions to common EDF code.	Bjoern B. Brandenburg	2007-04-17
\| \| \| \| \| \| \| \| \| \|	Allow access to the release and ready queues for GSN-EDF. GSN-EDF doesn't use the locks embedded in the domain.
\| *	copied global edf scheduler plugin	Bjoern B. Brandenburg	2007-04-15
\| \| \| \| \| \| \| \|	This will be the GSN-EDF scheduler.
\| *	Merge before pushing sched_trace updates.	Bjoern B. Brandenburg	2007-04-15
\| \|\ \| \| \| \| \| \| \| \| \|	Merge with git+ssh://cvs/cvs/proj/litmus/repo/litmus
\| \| *	PFAIR scheduling added	Hennadiy Leontyev	2007-02-28
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\| * \|	Coding Style cleanup.	Bjoern B. Brandenburg	2007-04-12
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\| * \|	Make TRACING more robust in the early boot phase.	Bjoern B. Brandenburg	2007-04-12
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* \|	Fixed priority inheritance issues with PI semaphores. Added regular	John M. Calandrino	2007-04-23
\| \| \| \| \| \| \| \| \| \|	semaphores accessible through system calls, so that they can be used with the LSO (for partitioned FMLP).
* \|	Added a way for tasks to see what their current priority is due to priority	John M. Calandrino	2007-04-19
\| \| \| \| \| \| \| \|	inheritance.
* \|	Added priority inheritance within semaphores - compiles but has not been	John M. Calandrino	2007-04-18
\| \| \| \| \| \| \| \|	tested.
* \|	Added stubs for modifying "semaphore" priority, in order to facilitate	John M. Calandrino	2007-04-18
\| \| \| \| \| \| \| \| \| \| \| \| \| \|	priority inheritance. Also fixed a few bugs. Many files were modified, as the PI semaphores were are implementing replicate much of the original Linux semaphore implementation with minor changes, often causing a cascade of changes as functions were chased down and changed in several files.