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| author | Steven Rostedt <rostedt@goodmis.org> | 2014-04-10 00:18:44 (GMT) |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2014-04-10 00:18:44 (GMT) |
| commit | 47dc7448154ce49de9f8dc663208b94ba4729218 (patch) | |
| tree | f5bc89d96ff8834617ee0eaa200107cc6d801149 /drivers/idle | |
| parent | 8a04f7be7702e31db4eb061f4186476e3625ac65 (diff) | |
| download | linux-fsl-qoriq-47dc7448154ce49de9f8dc663208b94ba4729218.tar.xz | |
x86: Do not disable preemption in int3 on 32bit
Preemption must be disabled before enabling interrupts in do_trap
on x86_64 because the stack in use for int3 and debug is a per CPU
stack set by th IST. But 32bit does not have an IST and the stack
still belongs to the current task and there is no problem in scheduling
out the task.
Keep preemption enabled on X86_32 when enabling interrupts for
do_trap().
The name of the function is changed from preempt_conditional_sti/cli()
to conditional_sti/cli_ist(), to annotate that this function is used
when the stack is on the IST.
Cc: stable-rt@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/idle')
0 files changed, 0 insertions, 0 deletions