[PATCH] x86_64: inline function prefix with __always_inline in vsyscall
In vsyscall function do_vgettimeofday(), some functions are declared as
inlined, which is a hint for gcc to compile the function inlined but it
not forced. Sometimes compiler does not compile the function as
inlined, so here inline is replaced by __always_inline prefix.
It does not happen in gcc compiler actually, but it possibly happens.
Signed-off-by: bibo mao <bibo.mao@intel.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index fca9b0f..5a09557 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -73,7 +73,7 @@
}
/* Start of read calculation -- fetch last complete writer token */
-static inline unsigned read_seqbegin(const seqlock_t *sl)
+static __always_inline unsigned read_seqbegin(const seqlock_t *sl)
{
unsigned ret = sl->sequence;
smp_rmb();
@@ -88,7 +88,7 @@
*
* Using xor saves one conditional branch.
*/
-static inline int read_seqretry(const seqlock_t *sl, unsigned iv)
+static __always_inline int read_seqretry(const seqlock_t *sl, unsigned iv)
{
smp_rmb();
return (iv & 1) | (sl->sequence ^ iv);