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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-03-23 23:44:19 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-03-23 23:44:19 -0500 |
| commit | 1ebbe2b20091d306453a5cf480a87e6cd28ae76f (patch) | |
| tree | f5cd7a0fa69b8b1938cb5a0faed2e7b0628072a5 /include/asm-i386/rwlock.h | |
| parent | ac58c9059da8886b5e8cde012a80266b18ca146e (diff) | |
| parent | 674a396c6d2ba0341ebdd7c1c9950f32f018e2dd (diff) | |
Merge branch 'linus'
Diffstat (limited to 'include/asm-i386/rwlock.h')
| -rw-r--r-- | include/asm-i386/rwlock.h | 56 |
1 files changed, 30 insertions, 26 deletions
diff --git a/include/asm-i386/rwlock.h b/include/asm-i386/rwlock.h index b57cc7afdf7..94f00195d54 100644 --- a/include/asm-i386/rwlock.h +++ b/include/asm-i386/rwlock.h @@ -21,21 +21,23 @@ #define RW_LOCK_BIAS_STR "0x01000000" #define __build_read_lock_ptr(rw, helper) \ - asm volatile(LOCK "subl $1,(%0)\n\t" \ - "jns 1f\n" \ - "call " helper "\n\t" \ - "1:\n" \ - ::"a" (rw) : "memory") + alternative_smp("lock; subl $1,(%0)\n\t" \ + "jns 1f\n" \ + "call " helper "\n\t" \ + "1:\n", \ + "subl $1,(%0)\n\t", \ + :"a" (rw) : "memory") #define __build_read_lock_const(rw, helper) \ - asm volatile(LOCK "subl $1,%0\n\t" \ - "jns 1f\n" \ - "pushl %%eax\n\t" \ - "leal %0,%%eax\n\t" \ - "call " helper "\n\t" \ - "popl %%eax\n\t" \ - "1:\n" \ - :"=m" (*(volatile int *)rw) : : "memory") + alternative_smp("lock; subl $1,%0\n\t" \ + "jns 1f\n" \ + "pushl %%eax\n\t" \ + "leal %0,%%eax\n\t" \ + "call " helper "\n\t" \ + "popl %%eax\n\t" \ + "1:\n", \ + "subl $1,%0\n\t", \ + "=m" (*(volatile int *)rw) : : "memory") #define __build_read_lock(rw, helper) do { \ if (__builtin_constant_p(rw)) \ @@ -45,21 +47,23 @@ } while (0) #define __build_write_lock_ptr(rw, helper) \ - asm volatile(LOCK "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \ - "jz 1f\n" \ - "call " helper "\n\t" \ - "1:\n" \ - ::"a" (rw) : "memory") + alternative_smp("lock; subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \ + "jz 1f\n" \ + "call " helper "\n\t" \ + "1:\n", \ + "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t", \ + :"a" (rw) : "memory") #define __build_write_lock_const(rw, helper) \ - asm volatile(LOCK "subl $" RW_LOCK_BIAS_STR ",%0\n\t" \ - "jz 1f\n" \ - "pushl %%eax\n\t" \ - "leal %0,%%eax\n\t" \ - "call " helper "\n\t" \ - "popl %%eax\n\t" \ - "1:\n" \ - :"=m" (*(volatile int *)rw) : : "memory") + alternative_smp("lock; subl $" RW_LOCK_BIAS_STR ",%0\n\t" \ + "jz 1f\n" \ + "pushl %%eax\n\t" \ + "leal %0,%%eax\n\t" \ + "call " helper "\n\t" \ + "popl %%eax\n\t" \ + "1:\n", \ + "subl $" RW_LOCK_BIAS_STR ",%0\n\t", \ + "=m" (*(volatile int *)rw) : : "memory") #define __build_write_lock(rw, helper) do { \ if (__builtin_constant_p(rw)) \ |