Commit-ID: d756f4adb9d8a86e347a2d5435bb5cc95744733e
Gitweb: http://git.kernel.org/tip/d756f4adb9d8a86e347a2d5435bb5cc95744733e
Author: Alexey Dobriyan <adobriyan@xxxxxxxxx>
AuthorDate: Mon, 4 May 2009 03:29:52 +0400
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Mon, 11 May 2009 16:23:54 +0200
x86, 32-bit: ifdef out struct thread_struct::fs
After commit 464d1a78fbf8cf6c7fd970e7b3e2db50a320ce28 aka
"[PATCH] i386: Convert i386 PDA code to use %fs"
%fs saved during context switch moved from thread_struct to pt_regs
and value on thread_struct became unused.
[ Impact: reduce thread_struct size on 32-bit ]
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Cc: containers@xxxxxxxxxxxxxxxxxxxxxxxxxx
LKML-Reference: <20090503232952.GI16631@xxxxxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
arch/x86/include/asm/processor.h | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index c2cceae..a6732ff 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -428,7 +428,9 @@ struct thread_struct {
unsigned short gsindex;
#endif
unsigned long ip;
+#ifdef CONFIG_X86_64
unsigned long fs;
+#endif
unsigned long gs;
/* Hardware debugging registers: */
unsigned long debugreg0;
@@ -874,7 +876,6 @@ static inline void spin_lock_prefetch(const void *x)
.vm86_info = NULL, \
.sysenter_cs = __KERNEL_CS, \
.io_bitmap_ptr = NULL, \
- .fs = __KERNEL_PERCPU, \
}
/*
--
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