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authorAndi Kleen <ak@suse.de>2006-09-26 04:52:31 -0400
committerAndi Kleen <andi@basil.nowhere.org>2006-09-26 04:52:31 -0400
commit01215ad8d83e18321d99e9b5750a6f21cac243a2 (patch)
treeaad34bac0001d2b2788dcb5c68566372db7968c3 /include/asm-i386
parent0577f148b5e9a773020e3da1e6332a7c6df9d601 (diff)
[PATCH] i386: Remove lock section support in mutex.h
Lock sections don't work the new dwarf2 unwinder This generates slightly smaller code. It adds one more taken jump to the fast path. Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'include/asm-i386')
-rw-r--r--include/asm-i386/mutex.h16
1 files changed, 4 insertions, 12 deletions
diff --git a/include/asm-i386/mutex.h b/include/asm-i386/mutex.h
index 05a538531229..7a17d9e58ad6 100644
--- a/include/asm-i386/mutex.h
+++ b/include/asm-i386/mutex.h
@@ -30,14 +30,10 @@ do { \
30 \ 30 \
31 __asm__ __volatile__( \ 31 __asm__ __volatile__( \
32 LOCK_PREFIX " decl (%%eax) \n" \ 32 LOCK_PREFIX " decl (%%eax) \n" \
33 " js 2f \n" \ 33 " jns 1f \n" \
34 " call "#fail_fn" \n" \
34 "1: \n" \ 35 "1: \n" \
35 \ 36 \
36 LOCK_SECTION_START("") \
37 "2: call "#fail_fn" \n" \
38 " jmp 1b \n" \
39 LOCK_SECTION_END \
40 \
41 :"=a" (dummy) \ 37 :"=a" (dummy) \
42 : "a" (count) \ 38 : "a" (count) \
43 : "memory", "ecx", "edx"); \ 39 : "memory", "ecx", "edx"); \
@@ -86,14 +82,10 @@ do { \
86 \ 82 \
87 __asm__ __volatile__( \ 83 __asm__ __volatile__( \
88 LOCK_PREFIX " incl (%%eax) \n" \ 84 LOCK_PREFIX " incl (%%eax) \n" \
89 " jle 2f \n" \ 85 " jg 1f \n" \
86 " call "#fail_fn" \n" \
90 "1: \n" \ 87 "1: \n" \
91 \ 88 \
92 LOCK_SECTION_START("") \
93 "2: call "#fail_fn" \n" \
94 " jmp 1b \n" \
95 LOCK_SECTION_END \
96 \
97 :"=a" (dummy) \ 89 :"=a" (dummy) \
98 : "a" (count) \ 90 : "a" (count) \
99 : "memory", "ecx", "edx"); \ 91 : "memory", "ecx", "edx"); \