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x86/irq/64: Update stale comment 

Commit e6401c1309 ("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: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190719081635.26528-1-caoj.fnst@cn.fujitsu.com
This commit is contained in:
Cao jin 2019-07-19 16:16:35 +08:00 committed by Thomas Gleixner
parent d02f1aa391
commit 385065734c
1 changed files with 4 additions and 4 deletions
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8
arch/x86/kernel/head_64.S
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@ -193,10 +193,10 @@ ENTRY(secondary_startup_64)
/* Set up %gs. /* Set up %gs.
* *
* The base of %gs always points to the bottom of the irqstack * The base of %gs always points to fixed_percpu_data. If the
* union. If the stack protector canary is enabled, it is * stack protector canary is enabled, it is located at %gs:40.
* located at %gs:40. Note that, on SMP, the boot cpu uses * Note that, on SMP, the boot cpu uses init data section until
* init data section till per cpu areas are set up. * the per cpu areas are set up.
*/ */
movl $MSR_GS_BASE,%ecx movl $MSR_GS_BASE,%ecx
movl initial_gs(%rip),%eax movl initial_gs(%rip),%eax