Commit 1ee6f566 authored by David Howells's avatar David Howells

FRV: Fix the preemption handling

Fix the preemption handling in FRV code where the PREEMPT_ACTIVE value is
incorrectly loaded into the threadinfo flags rather than the threadinfo
preemption count.

Unfortunately, the code cannot be simply converted to use
preempt_schedule_irq() as is because FRV uses virtual interrupt disablement to
cut down on the cost of actually disabling interrupts and thus
local_irq_enable() doesn't actually enable interrupts.
Reported-by: default avatarAl Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
cc: Al Viro <viro@ZenIV.linux.org.uk>
parent eded09cc
......@@ -1086,7 +1086,7 @@ __entry_preempt_need_resched:
beq icc0,#1,__entry_return_direct
setlos #PREEMPT_ACTIVE,gr5
sti gr5,@(gr15,#TI_FLAGS)
sti gr5,@(gr15,#TI_PRE_COUNT)
andi gr23,#~PSR_PIL,gr23
movgs gr23,psr
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment