Date: Mon, 6 Mar 2017 12:22:06 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r314772 - head/sys/compat/linuxkpi/common/include/linux Message-ID: <201703061222.v26CM6ej045160@repo.freebsd.org>
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Author: hselasky Date: Mon Mar 6 12:22:05 2017 New Revision: 314772 URL: https://svnweb.freebsd.org/changeset/base/314772 Log: Implement DECLARE_RWSEM() macro in the LinuxKPI to initialize a Read-Write semaphore during module init time. MFC after: 1 week Sponsored by: Mellanox Technologies Modified: head/sys/compat/linuxkpi/common/include/linux/rwsem.h Modified: head/sys/compat/linuxkpi/common/include/linux/rwsem.h ============================================================================== --- head/sys/compat/linuxkpi/common/include/linux/rwsem.h Mon Mar 6 12:20:56 2017 (r314771) +++ head/sys/compat/linuxkpi/common/include/linux/rwsem.h Mon Mar 6 12:22:05 2017 (r314772) @@ -35,6 +35,7 @@ #include <sys/lock.h> #include <sys/sx.h> #include <sys/libkern.h> +#include <sys/kernel.h> struct rw_semaphore { struct sx sx; @@ -61,6 +62,14 @@ struct rw_semaphore { #define _rwsem_name(...) __rwsem_name(__VA_ARGS__) #define rwsem_name(name) _rwsem_name(name, __FILE__, __LINE__) +#define DECLARE_RWSEM(name) \ +struct rw_semaphore name; \ +static void name##_rwsem_init(void *arg) \ +{ \ + linux_init_rwsem(&name, rwsem_name(#name)) \ +} \ +SYSINIT(name, SI_SUB_LOCKS, SI_ORDER_SECOND, name##_rwsem_init, NULL) + static inline void linux_init_rwsem(struct rw_semaphore *rw, const char *name) {
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