From: kfraser@localhost.localdomain Date: Thu, 30 Aug 2007 15:17:07 +0000 (+0100) Subject: PV-on-HVM: Define DEFINE_RWLOCK() macro for older Linux kernels. X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~14987^2~39 X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=abfd726ed8afbfc2cf7f18ae2da030ef016c1ad0;p=xen.git PV-on-HVM: Define DEFINE_RWLOCK() macro for older Linux kernels. Signed-off-by: Ben Guthro --- diff --git a/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h b/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h index ad53d95b79..54a81f6ee9 100644 --- a/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h +++ b/unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h @@ -116,4 +116,13 @@ extern char *kasprintf(gfp_t gfp, const char *fmt, ...) #define DEFINE_SEQLOCK(x) seqlock_t x = SEQLOCK_UNLOCKED #endif +/* Bug in RHEL4-U3: rw_lock_t is mistakenly defined in DEFINE_RWLOCK() macro */ +#if defined(__LINUX_SPINLOCK_H) && defined(DEFINE_RWLOCK) +#define rw_lock_t rwlock_t +#endif + +#if defined(__LINUX_SPINLOCK_H) && !defined(DEFINE_RWLOCK) +#define DEFINE_RWLOCK(x) rwlock_t x = RW_LOCK_UNLOCKED +#endif + #endif