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Delete rw_semaphore.wait_lock configure check

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Last use of wait_lock was removed in "Linux 5.3 compat: retire
rw_tryupgrade()" (e7a99dab2b).

Fixes the issue reported in
https://github.com/openzfs/zfs/issues/11097#issuecomment-714532367

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Orivej Desh <orivej@gmx.fr>
Closes #11309
This commit is contained in:
Orivej Desh 2020-12-10 05:22:54 +00:00 committed by GitHub
parent 1e4732cbda
commit ab4fb9b74e
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1 changed files with 0 additions and 28 deletions
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28
config/kernel-rwsem.m4
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@ -1,29 +1,3 @@
dnl #
dnl # 3.1 API Change
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_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)
],[
ZFS_LINUX_TEST_ERROR([rwsem_spinlock_is_raw])
])
])
dnl #
dnl # 3.16 API Change
dnl #
@ -76,13 +50,11 @@ AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT], [
])
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
])