litmus-rt.git, branch wip-mmap-uncache The LITMUS^RT kernel. share branch with others 2013-03-07T02:39:52+00:00 Glenn Elliott gelliott@cs.unc.edu 2013-03-07T02:39:52+00:00 6aa68b530d69cd7e04b09b30ee76438a58fa9dc4 






Merge remote-tracking branch 'github/master' into wip-mmap-uncache
2013-03-06T19:20:55+00:00

Glenn Elliott
gelliott@cs.unc.edu

2013-03-06T19:20:55+00:00

22da1b2b4f02413e58bf01caa5b14e42e7913598












stashing changes
2013-03-06T19:20:29+00:00

Glenn Elliott
gelliott@cs.unc.edu

2012-09-24T18:20:35+00:00

da954aa12e99b502356ca62bff822cb6a95cba7a












P-FP: fix BUG_ON releated to priority inheritance
2013-02-04T14:24:58+00:00

Bjoern Brandenburg
bbb@mpi-sws.org

2013-01-11T13:10:43+00:00

c7cd5432b98df518b05bc8978d34382797fd9a05

In some cases, the PCP priority inheritance code triggered a
(defensive) BUG_ON() in fp_common.c. This shuffles the order of
operations a bit to be compliant with the restriction that tasks are
never compared against themselves.





In some cases, the PCP priority inheritance code triggered a
(defensive) BUG_ON() in fp_common.c. This shuffles the order of
operations a bit to be compliant with the restriction that tasks are
never compared against themselves.







FDSO: fail to build if some ops are missing
2013-02-04T14:24:58+00:00

Bjoern Brandenburg
bbb@mpi-sws.org

2013-01-10T11:47:01+00:00

4bd4eacab5070ac3003925b50a3d03069ae15e4a

Prevents out-of-bounds lookups.





Prevents out-of-bounds lookups.







TRACE_TASK(): accept NULL pointers
2013-02-04T14:24:57+00:00

Bjoern Brandenburg
bbb@mpi-sws.org

2013-01-20T17:25:51+00:00

44b2be2bd7b1985345bf855bc74dfc303c7c79cb

Allow tracing of NULL tasks. Makes debugging a bit easier.





Allow tracing of NULL tasks. Makes debugging a bit easier.







Reimplement plugin switching using stop_machine()
2013-01-10T15:43:23+00:00

Bjoern Brandenburg
bbb@mpi-sws.org

2013-01-10T15:41:34+00:00

a9a4887bc8dc24b0cf9665f59dc363c126628b25

stop_machine() does exactly what we want (avoid all concurrent
scheduling activity) and much simpler than rolling our own (buggy)
implementation.





stop_machine() does exactly what we want (avoid all concurrent
scheduling activity) and much simpler than rolling our own (buggy)
implementation.







Avoid race in do_release_ts()
2013-01-10T15:43:17+00:00

Bjoern Brandenburg
bbb@mpi-sws.org

2013-01-10T15:39:19+00:00

b60b41eb47d4746d16c2c1365521bbcb94d6cd2e

The list is concurrently being modified by the waking processes.  This
requires the use of the list_for_each_safe() iterator.

Reported by Glenn Elliott.





The list is concurrently being modified by the waking processes.  This
requires the use of the list_for_each_safe() iterator.

Reported by Glenn Elliott.







Protect SCHED_LITMUS tasks from reschedules triggered by SCHED_FIFO enqueues.
2012-12-21T12:37:14+00:00

Jonathan Herman
hermanjl@cs.unc.edu

2012-12-01T19:44:37+00:00

c158b5fbe42dacd34393082b6b8f9f6573ab8c5c

(BB: edited to include <litmus/litmus.h> to resolve compile error.)





(BB: edited to include <litmus/litmus.h> to resolve compile error.)







Config: PREEMPT_STATE_TRACE depends on DEBUG_KERNEL.
2012-12-11T16:39:04+00:00

Christopher Kenna
cjk@cs.unc.edu

2012-12-11T16:39:04+00:00

31477ed8ca65bb0a3ed3de4cb6df841e6a785471

This patch makes CONFIG_PREEMPT_STATE_TRACE depend on
CONFIG_DEBUG_KERNEL. Prior to this patch, selecting PREEMPT_STATE_TRACE
resulted in linker errors (see below), because sched_state_name is not
built unless DEBUG_KERNEL is selected.

kernel/built-in.o: In function `schedule':
(.sched.text+0x3d2): undefined reference to `sched_state_name'





This patch makes CONFIG_PREEMPT_STATE_TRACE depend on
CONFIG_DEBUG_KERNEL. Prior to this patch, selecting PREEMPT_STATE_TRACE
resulted in linker errors (see below), because sched_state_name is not
built unless DEBUG_KERNEL is selected.

kernel/built-in.o: In function `schedule':
(.sched.text+0x3d2): undefined reference to `sched_state_name'