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yaml
---
r: 305445
b: refs/heads/master
c: 9732da8
h: refs/heads/master
i:
  305443: 5a81fcb
v: v3
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H. Peter Anvin committed Apr 20, 2012
1 parent 2c683f9 commit 9ad5603
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Showing 2 changed files with 27 additions and 38 deletions.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 5f2e8a84f07bb43f9c0ce317d7e0c5e541db00e3
refs/heads/master: 9732da8ca860053515431298ec969e1f3e6bc64a
63 changes: 26 additions & 37 deletions trunk/arch/x86/lib/copy_user_64.S
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@
#include <asm/thread_info.h>
#include <asm/cpufeature.h>
#include <asm/alternative-asm.h>
#include <asm/asm.h>

/*
* By placing feature2 after feature1 in altinstructions section, we logically
Expand Down Expand Up @@ -63,11 +64,8 @@
jmp copy_user_handle_tail
.previous

.section __ex_table,"a"
.align 8
.quad 100b,103b
.quad 101b,103b
.previous
_ASM_EXTABLE(100b,103b)
_ASM_EXTABLE(101b,103b)
#endif
.endm

Expand Down Expand Up @@ -191,29 +189,26 @@ ENTRY(copy_user_generic_unrolled)
60: jmp copy_user_handle_tail /* ecx is zerorest also */
.previous

.section __ex_table,"a"
.align 8
.quad 1b,30b
.quad 2b,30b
.quad 3b,30b
.quad 4b,30b
.quad 5b,30b
.quad 6b,30b
.quad 7b,30b
.quad 8b,30b
.quad 9b,30b
.quad 10b,30b
.quad 11b,30b
.quad 12b,30b
.quad 13b,30b
.quad 14b,30b
.quad 15b,30b
.quad 16b,30b
.quad 18b,40b
.quad 19b,40b
.quad 21b,50b
.quad 22b,50b
.previous
_ASM_EXTABLE(1b,30b)
_ASM_EXTABLE(2b,30b)
_ASM_EXTABLE(3b,30b)
_ASM_EXTABLE(4b,30b)
_ASM_EXTABLE(5b,30b)
_ASM_EXTABLE(6b,30b)
_ASM_EXTABLE(7b,30b)
_ASM_EXTABLE(8b,30b)
_ASM_EXTABLE(9b,30b)
_ASM_EXTABLE(10b,30b)
_ASM_EXTABLE(11b,30b)
_ASM_EXTABLE(12b,30b)
_ASM_EXTABLE(13b,30b)
_ASM_EXTABLE(14b,30b)
_ASM_EXTABLE(15b,30b)
_ASM_EXTABLE(16b,30b)
_ASM_EXTABLE(18b,40b)
_ASM_EXTABLE(19b,40b)
_ASM_EXTABLE(21b,50b)
_ASM_EXTABLE(22b,50b)
CFI_ENDPROC
ENDPROC(copy_user_generic_unrolled)

Expand Down Expand Up @@ -259,11 +254,8 @@ ENTRY(copy_user_generic_string)
jmp copy_user_handle_tail
.previous

.section __ex_table,"a"
.align 8
.quad 1b,11b
.quad 3b,12b
.previous
_ASM_EXTABLE(1b,11b)
_ASM_EXTABLE(3b,12b)
CFI_ENDPROC
ENDPROC(copy_user_generic_string)

Expand Down Expand Up @@ -294,9 +286,6 @@ ENTRY(copy_user_enhanced_fast_string)
jmp copy_user_handle_tail
.previous

.section __ex_table,"a"
.align 8
.quad 1b,12b
.previous
_ASM_EXTABLE(1b,12b)
CFI_ENDPROC
ENDPROC(copy_user_enhanced_fast_string)

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