diff options
Diffstat (limited to 'config/kernel-rwsem.m4')
| -rw-r--r-- | config/kernel-rwsem.m4 | 65 |
1 files changed, 40 insertions, 25 deletions
diff --git a/config/kernel-rwsem.m4 b/config/kernel-rwsem.m4 index 532c22718..67c5cf908 100644 --- a/config/kernel-rwsem.m4 +++ b/config/kernel-rwsem.m4 @@ -4,25 +4,26 @@ dnl # dnl # The rw_semaphore.wait_lock member was changed from spinlock_t to dnl # raw_spinlock_t at commit ddb6c9b58a19edcfac93ac670b066c836ff729f1. dnl # -AC_DEFUN([ZFS_AC_KERNEL_RWSEM_SPINLOCK_IS_RAW], [ - AC_MSG_CHECKING([whether struct rw_semaphore member wait_lock is raw]) - tmp_flags="$EXTRA_KCFLAGS" - EXTRA_KCFLAGS="-Werror" - ZFS_LINUX_TRY_COMPILE([ +AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM_SPINLOCK_IS_RAW], [ + ZFS_LINUX_TEST_SRC([rwsem_spinlock_is_raw], [ #include <linux/rwsem.h> ],[ struct rw_semaphore dummy_semaphore __attribute__ ((unused)); raw_spinlock_t dummy_lock __attribute__ ((unused)) = __RAW_SPIN_LOCK_INITIALIZER(dummy_lock); dummy_semaphore.wait_lock = dummy_lock; - ],[ + ]) +]) + +AC_DEFUN([ZFS_AC_KERNEL_RWSEM_SPINLOCK_IS_RAW], [ + AC_MSG_CHECKING([whether struct rw_semaphore member wait_lock is raw]) + ZFS_LINUX_TEST_RESULT([rwsem_spinlock_is_raw], [ AC_MSG_RESULT(yes) AC_DEFINE(RWSEM_SPINLOCK_IS_RAW, 1, - [struct rw_semaphore member wait_lock is raw_spinlock_t]) + [struct rw_semaphore member wait_lock is raw_spinlock_t]) ],[ AC_MSG_RESULT(no) ]) - EXTRA_KCFLAGS="$tmp_flags" ]) dnl # @@ -30,23 +31,24 @@ dnl # 3.16 API Change dnl # dnl # rwsem-spinlock "->activity" changed to "->count" dnl # -AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ACTIVITY], [ - AC_MSG_CHECKING([whether struct rw_semaphore has member activity]) - tmp_flags="$EXTRA_KCFLAGS" - EXTRA_KCFLAGS="-Werror" - ZFS_LINUX_TRY_COMPILE([ +AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM_ACTIVITY], [ + ZFS_LINUX_TEST_SRC([rwsem_activity], [ #include <linux/rwsem.h> ],[ struct rw_semaphore dummy_semaphore __attribute__ ((unused)); dummy_semaphore.activity = 0; - ],[ + ]) +]) + +AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ACTIVITY], [ + AC_MSG_CHECKING([whether struct rw_semaphore has member activity]) + ZFS_LINUX_TEST_RESULT([rwsem_activity], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_RWSEM_ACTIVITY, 1, - [struct rw_semaphore has member activity]) + [struct rw_semaphore has member activity]) ],[ AC_MSG_RESULT(no) ]) - EXTRA_KCFLAGS="$tmp_flags" ]) dnl # @@ -54,22 +56,35 @@ dnl # 4.8 API Change dnl # dnl # rwsem "->count" changed to atomic_long_t type dnl # -AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT], [ - AC_MSG_CHECKING( - [whether struct rw_semaphore has atomic_long_t member count]) - tmp_flags="$EXTRA_KCFLAGS" - EXTRA_KCFLAGS="-Werror" - ZFS_LINUX_TRY_COMPILE([ +AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM_ATOMIC_LONG_COUNT], [ + ZFS_LINUX_TEST_SRC([rwsem_atomic_long_count], [ #include <linux/rwsem.h> ],[ DECLARE_RWSEM(dummy_semaphore); (void) atomic_long_read(&dummy_semaphore.count); - ],[ + ]) +]) + +AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT], [ + AC_MSG_CHECKING( + [whether struct rw_semaphore has atomic_long_t member count]) + ZFS_LINUX_TEST_RESULT([rwsem_atomic_long_count], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_RWSEM_ATOMIC_LONG_COUNT, 1, - [struct rw_semaphore has atomic_long_t member count]) + [struct rw_semaphore has atomic_long_t member count]) ],[ AC_MSG_RESULT(no) ]) - EXTRA_KCFLAGS="$tmp_flags" +]) + +AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM], [ + ZFS_AC_KERNEL_SRC_RWSEM_SPINLOCK_IS_RAW + ZFS_AC_KERNEL_SRC_RWSEM_ACTIVITY + ZFS_AC_KERNEL_SRC_RWSEM_ATOMIC_LONG_COUNT +]) + +AC_DEFUN([ZFS_AC_KERNEL_RWSEM], [ + ZFS_AC_KERNEL_RWSEM_SPINLOCK_IS_RAW + ZFS_AC_KERNEL_RWSEM_ACTIVITY + ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT ]) |