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| author | David S. Miller <davem@davemloft.net> | 2008-03-18 00:37:55 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-03-18 00:37:55 -0700 |
| commit | 577f99c1d08cf9cbdafd4e858dd13ff04d855090 (patch) | |
| tree | 0f726bbda9b18d311d4c95198bbd96cb7ac01db0 /include/asm-x86/futex.h | |
| parent | 26c0f03f6b77c513cb7bc37b73a06819bdbb791b (diff) | |
| parent | 2f633928cbba8a5858bb39b11e7219a41b0fbef5 (diff) | |
| download | kernel-common-577f99c1d08cf9cbdafd4e858dd13ff04d855090.tar.gz kernel-common-577f99c1d08cf9cbdafd4e858dd13ff04d855090.tar.bz2 kernel-common-577f99c1d08cf9cbdafd4e858dd13ff04d855090.zip | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/wireless/rt2x00/rt2x00dev.c
net/8021q/vlan_dev.c
Diffstat (limited to 'include/asm-x86/futex.h')
| -rw-r--r-- | include/asm-x86/futex.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/asm-x86/futex.h b/include/asm-x86/futex.h index cd9f894dd2d7..c9952ea9f698 100644 --- a/include/asm-x86/futex.h +++ b/include/asm-x86/futex.h @@ -102,6 +102,13 @@ futex_atomic_op_inuser(int encoded_op, int __user *uaddr) static inline int futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval) { + +#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_BSWAP) + /* Real i386 machines have no cmpxchg instruction */ + if (boot_cpu_data.x86 == 3) + return -ENOSYS; +#endif + if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int))) return -EFAULT; |