diff options
| author | Brian Behlendorf <[email protected]> | 2009-10-30 13:53:17 -0700 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2009-10-30 13:53:17 -0700 |
| commit | 302b88e6abc3efe86411f9622b0a27a5b8b1f417 (patch) | |
| tree | 1290c23f91ff930e53ab796ef6fd21fa7a0295a6 /spl_config.h.in | |
| parent | 5e9b5d832b228b0628a61c9c1c9bf0b05d2fe122 (diff) | |
Add autoconf checks for atomic64_cmpxchg + atomic64_xchg
These functions didn't exist for all archs prior to 2.6.24. This
patch addes an autoconf test to detect this and add them when needed.
The autoconf check is needed instead of just an #ifndef because in
the most modern kernels atomic64_{cmp}xchg are implemented as in
inline function and not a #define.
Diffstat (limited to 'spl_config.h.in')
| -rw-r--r-- | spl_config.h.in | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/spl_config.h.in b/spl_config.h.in index feb09a865..409ee372d 100644 --- a/spl_config.h.in +++ b/spl_config.h.in @@ -33,9 +33,15 @@ /* device_create wants 5 args */ #undef HAVE_5ARGS_DEVICE_CREATE +/* kernel defines atomic64_cmpxchg */ +#undef HAVE_ATOMIC64_CMPXCHG + /* kernel defines atomic64_t */ #undef HAVE_ATOMIC64_T +/* kernel defines atomic64_xchg */ +#undef HAVE_ATOMIC64_XCHG + /* class_device_create() is available */ #undef HAVE_CLASS_DEVICE_CREATE |