REORG: thread/sched: move the task_per_thread stuff to thread_ctx
The scheduler contains a lot of stuff that is thread-local and not
exclusively tied to the scheduler. Other parts (namely thread_info)
contain similar thread-local context that ought to be merged with
it but that is even less related to the scheduler. However moving
more data into this structure isn't possible since task.h is high
level and cannot be included everywhere (e.g. activity) without
causing include loops.
In the end, it appears that the task_per_thread represents most of
the per-thread context defined with generic types and should simply
move to tinfo.h so that everyone can use them.
The struct was renamed to thread_ctx and the variable "sched" was
renamed to "th_ctx". "sched" used to be initialized manually from
run_thread_poll_loop(), now it's initialized by ha_set_tid() just
like ti, tid, tid_bit.
The memset() in init_task() was removed in favor of a bss initialization
of the array, so that other subsystems can put their stuff in this array.
Since the tasklet array has TL_CLASSES elements, the TL_* definitions
was moved there as well, but it's not a problem.
The vast majority of the change in this patch is caused by the
renaming of the structures.
diff --git a/src/thread.c b/src/thread.c
index ad5327a..ab9ef90 100644
--- a/src/thread.c
+++ b/src/thread.c
@@ -53,6 +53,9 @@
struct thread_info ha_thread_info[MAX_THREADS] = { };
THREAD_LOCAL struct thread_info *ti = &ha_thread_info[0];
+struct thread_ctx ha_thread_ctx[MAX_THREADS] = { };
+THREAD_LOCAL struct thread_ctx *th_ctx = &ha_thread_ctx[0];
+
#ifdef USE_THREAD
volatile unsigned long threads_want_rdv_mask __read_mostly = 0;