x86-64: Move oldrsp from PDA to per-cpu.

tj: * in asm-offsets_64.c, pda.h inclusion shouldn't be removed as pda
      is still referenced in the file
    * s/oldrsp/old_rsp/

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 0dd45859a7a8..7c27da407da7 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -210,7 +210,7 @@ ENTRY(native_usergs_sysret64)
 
         /* %rsp:at FRAMEEND */
         .macro FIXUP_TOP_OF_STACK tmp offset=0
-        movq %gs:pda_oldrsp,\tmp
+        movq PER_CPU_VAR(old_rsp),\tmp
         movq \tmp,RSP+\offset(%rsp)
         movq $__USER_DS,SS+\offset(%rsp)
         movq $__USER_CS,CS+\offset(%rsp)
@@ -221,7 +221,7 @@ ENTRY(native_usergs_sysret64)
 
         .macro RESTORE_TOP_OF_STACK tmp offset=0
         movq RSP+\offset(%rsp),\tmp
-        movq \tmp,%gs:pda_oldrsp
+        movq \tmp,PER_CPU_VAR(old_rsp)
         movq EFLAGS+\offset(%rsp),\tmp
         movq \tmp,R11+\offset(%rsp)
         .endm
@@ -479,7 +479,7 @@ ENTRY(system_call)
          */
 ENTRY(system_call_after_swapgs)
 
-        movq    %rsp,%gs:pda_oldrsp
+        movq    %rsp,PER_CPU_VAR(old_rsp)
         movq    PER_CPU_VAR(kernel_stack),%rsp
         /*
          * No need to follow this irqs off/on section - it's straight
@@ -523,7 +523,7 @@ sysret_check:
         CFI_REGISTER    rip,rcx
         RESTORE_ARGS 0,-ARG_SKIP,1
         /*CFI_REGISTER  rflags,r11*/
-        movq    %gs:pda_oldrsp, %rsp
+        movq    PER_CPU_VAR(old_rsp), %rsp
         USERGS_SYSRET64
 
         CFI_RESTORE_STATE
@@ -833,7 +833,7 @@ common_interrupt:
         XCPT_FRAME
         addq $-0x80,(%rsp)              /* Adjust vector to [-256,-1] range */
         interrupt do_IRQ
-        /* 0(%rsp): oldrsp-ARGOFFSET */
+        /* 0(%rsp): old_rsp-ARGOFFSET */
 ret_from_intr:
         DISABLE_INTERRUPTS(CLBR_NONE)
         TRACE_IRQS_OFF