From: "Luis R. Rodriguez" <[email protected]>
Matthew generalized the semaphore implementation and part of
that collateral evolution consisted of changing the header
used for the expected routines from asm/semaphore.h to
linux/semaphore.h.
mcgrof@garbanzo ~/linux-next (git::master)$ git describe --contains \
64ac24e738823161693bf791f87adc802cf529ff
v2.6.26-rc1~1155^2~5
commit 64ac24e738823161693bf791f87adc802cf529ff
Author: Matthew Wilcox <[email protected]>
Date: Fri Mar 7 21:55:58 2008 -0500
Generic semaphore implementation
Semaphores are no longer performance-critical, so a generic C
implementation is better for maintainability, debuggability and
extensibility. Thanks to Peter Zijlstra for fixing the lockdep
warning. Thanks to Harvey Harrison for pointing out that the
unlikely() was unnecessary.
Signed-off-by: Matthew Wilcox <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Signed-off-by: Luis R. Rodriguez <[email protected]>
---
backport/backport-include/linux/semaphore.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
create mode 100644 backport/backport-include/linux/semaphore.h
diff --git a/backport/backport-include/linux/semaphore.h
b/backport/backport-include/linux/semaphore.h
new file mode 100644
index 0000000..d242df4
--- /dev/null
+++ b/backport/backport-include/linux/semaphore.h
@@ -0,0 +1,12 @@
+#ifndef __BACKPORT_LINUX_SEMAPHORE_H
+#define __BACKPORT_LINUX_SEMAPHORE_H
+
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
+#include_next <linux/semaphore.h>
+#else
+#include <asm/semaphore.h>
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26) */
+
+#endif /* __BACKPORT_LINUX_SEMAPHORE_H */
--
1.7.10.4
--
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