Commit 38506573 authored by Cao jin's avatar Cao jin Committed by Thomas Gleixner
Browse files

x86/irq/64: Update stale comment 



Commit e6401c13 ("x86/irq/64: Split the IRQ stack into its own pages")
missed to update one piece of comment as it did to its peer in Xen, which
will confuse people who still need to read comment.

Signed-off-by: default avatarCao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190719081635.26528-1-caoj.fnst@cn.fujitsu.com
parent d02f1aa3

arch/x86/kernel/head_64.S

+4 −4
Original line number Diff line number Diff line
@@ -193,10 +193,10 @@ ENTRY(secondary_startup_64) 


	/* Set up %gs.

	 *

	 * The base of %gs always points to the bottom of the irqstack

	 * union.  If the stack protector canary is enabled, it is

	 * located at %gs:40.  Note that, on SMP, the boot cpu uses

	 * init data section till per cpu areas are set up.

	 * The base of %gs always points to fixed_percpu_data. If the

	 * stack protector canary is enabled, it is located at %gs:40.

	 * Note that, on SMP, the boot cpu uses init data section until

	 * the per cpu areas are set up.

	 */

	movl	$MSR_GS_BASE,%ecx

	movl	initial_gs(%rip),%eax

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