diff options
| author | Luis R. Rodriguez <mcgrof@do-not-panic.com> | 2013-08-27 13:45:57 -0700 |
|---|---|---|
| committer | Luis R. Rodriguez <mcgrof@do-not-panic.com> | 2013-08-27 13:45:57 -0700 |
| commit | a96e84293fff050414eee9a9777d358ed101dfbe (patch) | |
| tree | 54270f3319bed4b6756bd6f8b0db142db8faf154 | |
| parent | 19951a60422062ec098ddaf5dd89c587829488a3 (diff) | |
backports: add generic semaphore.h
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 <matthew@wil.cx>
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 <willy@linux.intel.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
| -rw-r--r-- | backport/backport-include/linux/semaphore.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/backport/backport-include/linux/semaphore.h b/backport/backport-include/linux/semaphore.h new file mode 100644 index 00000000..d242df45 --- /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 */ |