The patch titled
revert x86_64-mm-i386-pda-definitions
has been removed from the -mm tree. Its filename is
revert-x86_64-mm-i386-pda-definitions.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: revert x86_64-mm-i386-pda-definitions
From: Andrew Morton <akpm@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
arch/i386/kernel/asm-offsets.c | 4 -
arch/i386/kernel/head.S | 2
include/asm-i386/pda.h | 98 -------------------------------
include/asm-i386/segment.h | 5 -
4 files changed, 2 insertions(+), 107 deletions(-)
diff -puN arch/i386/kernel/asm-offsets.c~revert-x86_64-mm-i386-pda-definitions arch/i386/kernel/asm-offsets.c
--- a/arch/i386/kernel/asm-offsets.c~revert-x86_64-mm-i386-pda-definitions
+++ a/arch/i386/kernel/asm-offsets.c
@@ -15,7 +15,6 @@
#include <asm/processor.h>
#include <asm/thread_info.h>
#include <asm/elf.h>
-#include <asm/pda.h>
#define DEFINE(sym, val) \
asm volatile("\n->" #sym " %0 " #val : : "i" (val))
@@ -92,7 +91,4 @@ void foo(void)
DEFINE(VDSO_PRELINK, VDSO_PRELINK);
OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
-
- BLANK();
- OFFSET(PDA_pcurrent, i386_pda, pcurrent);
}
diff -puN arch/i386/kernel/head.S~revert-x86_64-mm-i386-pda-definitions arch/i386/kernel/head.S
--- a/arch/i386/kernel/head.S~revert-x86_64-mm-i386-pda-definitions
+++ a/arch/i386/kernel/head.S
@@ -585,7 +585,7 @@ ENTRY(cpu_gdt_table)
.quad 0x004092000000ffff /* 0xc8 APM DS data */
.quad 0x0000920000000000 /* 0xd0 - ESPFIX 16-bit SS */
- .quad 0x0000000000000000 /* 0xd8 - PDA */
+ .quad 0x0000000000000000 /* 0xd8 - unused */
.quad 0x0000000000000000 /* 0xe0 - unused */
.quad 0x0000000000000000 /* 0xe8 - unused */
.quad 0x0000000000000000 /* 0xf0 - unused */
diff -puN include/asm-i386/pda.h~revert-x86_64-mm-i386-pda-definitions /dev/null
--- a/include/asm-i386/pda.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- Per-processor Data Areas
- Jeremy Fitzhardinge <jeremy@xxxxxxxx> 2006
- Based on asm-x86_64/pda.h by Andi Kleen.
- */
-#ifndef _I386_PDA_H
-#define _I386_PDA_H
-
-#include <linux/stddef.h>
-
-struct i386_pda
-{
- struct i386_pda *_pda; /* pointer to self */
-
- struct task_struct *pcurrent; /* current process */
- int cpu_number;
-};
-
-extern struct i386_pda *_cpu_pda[];
-
-#define cpu_pda(i) (_cpu_pda[i])
-
-#define pda_offset(field) offsetof(struct i386_pda, field)
-
-extern void __bad_pda_field(void);
-
-/* This variable is never instantiated. It is only used as a stand-in
- for the real per-cpu PDA memory, so that gcc can understand what
- memory operations the inline asms() below are performing. This
- eliminates the need to make the asms volatile or have memory
- clobbers, so gcc can readily analyse them. */
-extern struct i386_pda _proxy_pda;
-
-#define pda_to_op(op,field,val) \
- do { \
- typedef typeof(_proxy_pda.field) T__; \
- if (0) { T__ tmp__; tmp__ = (val); } \
- switch (sizeof(_proxy_pda.field)) { \
- case 1: \
- asm(op "b %1,%%gs:%c2" \
- : "+m" (_proxy_pda.field) \
- :"ri" ((T__)val), \
- "i"(pda_offset(field))); \
- break; \
- case 2: \
- asm(op "w %1,%%gs:%c2" \
- : "+m" (_proxy_pda.field) \
- :"ri" ((T__)val), \
- "i"(pda_offset(field))); \
- break; \
- case 4: \
- asm(op "l %1,%%gs:%c2" \
- : "+m" (_proxy_pda.field) \
- :"ri" ((T__)val), \
- "i"(pda_offset(field))); \
- break; \
- default: __bad_pda_field(); \
- } \
- } while (0)
-
-#define pda_from_op(op,field) \
- ({ \
- typeof(_proxy_pda.field) ret__; \
- switch (sizeof(_proxy_pda.field)) { \
- case 1: \
- asm(op "b %%gs:%c1,%0" \
- : "=r" (ret__) \
- : "i" (pda_offset(field)), \
- "m" (_proxy_pda.field)); \
- break; \
- case 2: \
- asm(op "w %%gs:%c1,%0" \
- : "=r" (ret__) \
- : "i" (pda_offset(field)), \
- "m" (_proxy_pda.field)); \
- break; \
- case 4: \
- asm(op "l %%gs:%c1,%0" \
- : "=r" (ret__) \
- : "i" (pda_offset(field)), \
- "m" (_proxy_pda.field)); \
- break; \
- default: __bad_pda_field(); \
- } \
- ret__; })
-
-/* Return a pointer to a pda field */
-#define pda_addr(field) \
- ((typeof(_proxy_pda.field) *)((unsigned char *)read_pda(_pda) + \
- pda_offset(field)))
-
-#define read_pda(field) pda_from_op("mov",field)
-#define write_pda(field,val) pda_to_op("mov",field,val)
-#define add_pda(field,val) pda_to_op("add",field,val)
-#define sub_pda(field,val) pda_to_op("sub",field,val)
-#define or_pda(field,val) pda_to_op("or",field,val)
-
-#endif /* _I386_PDA_H */
diff -puN include/asm-i386/segment.h~revert-x86_64-mm-i386-pda-definitions include/asm-i386/segment.h
--- a/include/asm-i386/segment.h~revert-x86_64-mm-i386-pda-definitions
+++ a/include/asm-i386/segment.h
@@ -39,7 +39,7 @@
* 25 - APM BIOS support
*
* 26 - ESPFIX small SS
- * 27 - PDA [ per-cpu private data area ]
+ * 27 - unused
* 28 - unused
* 29 - unused
* 30 - unused
@@ -74,9 +74,6 @@
#define GDT_ENTRY_ESPFIX_SS (GDT_ENTRY_KERNEL_BASE + 14)
#define __ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)
-#define GDT_ENTRY_PDA (GDT_ENTRY_KERNEL_BASE + 15)
-#define __KERNEL_PDA (GDT_ENTRY_PDA * 8)
-
#define GDT_ENTRY_DOUBLEFAULT_TSS 31
/*
_
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git-watchdog.patch
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use-generic-bug-for-powerpc.patch
use-generic-bug-for-powerpc-fix-2.patch
use-generic-bug-for-powerpc-fix-infinite-loop-on-bug.patch
bug-test-1.patch
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