projects / mirror_zfs.git / blame
| Commit | Line | Data |
|---|---|---|
| 48ef8ba0 BB |
1 | dnl # |
| 2 | dnl # 3.1 API Change | |
| 3 | dnl # | |
| 4 | dnl # The rw_semaphore.wait_lock member was changed from spinlock_t to | |
| 5 | dnl # raw_spinlock_t at commit ddb6c9b58a19edcfac93ac670b066c836ff729f1. | |
| 6 | dnl # | |
| 608f8749 BB |
7 | AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM_SPINLOCK_IS_RAW], [ |
| 8 | ZFS_LINUX_TEST_SRC([rwsem_spinlock_is_raw], [ | |
| 48ef8ba0 BB |
9 | #include <linux/rwsem.h> |
| 10 | ],[ | |
| 11 | struct rw_semaphore dummy_semaphore __attribute__ ((unused)); | |
| 12 | raw_spinlock_t dummy_lock __attribute__ ((unused)) = | |
| 13 | __RAW_SPIN_LOCK_INITIALIZER(dummy_lock); | |
| 14 | dummy_semaphore.wait_lock = dummy_lock; | |
| 608f8749 BB |
15 | ]) |
| 16 | ]) | |
| 17 | ||
| 18 | AC_DEFUN([ZFS_AC_KERNEL_RWSEM_SPINLOCK_IS_RAW], [ | |
| 19 | AC_MSG_CHECKING([whether struct rw_semaphore member wait_lock is raw]) | |
| 20 | ZFS_LINUX_TEST_RESULT([rwsem_spinlock_is_raw], [ | |
| 48ef8ba0 | 21 | AC_MSG_RESULT(yes) |
| 48ef8ba0 | 22 | ],[ |
| 066e8252 | 23 | ZFS_LINUX_TEST_ERROR([rwsem_spinlock_is_raw]) |
| 48ef8ba0 | 24 | ]) |
| 48ef8ba0 BB |
25 | ]) |
| 26 | ||
| 27 | dnl # | |
| 28 | dnl # 3.16 API Change | |
| 29 | dnl # | |
| 30 | dnl # rwsem-spinlock "->activity" changed to "->count" | |
| 31 | dnl # | |
| 608f8749 BB |
32 | AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM_ACTIVITY], [ |
| 33 | ZFS_LINUX_TEST_SRC([rwsem_activity], [ | |
| 48ef8ba0 BB |
34 | #include <linux/rwsem.h> |
| 35 | ],[ | |
| 36 | struct rw_semaphore dummy_semaphore __attribute__ ((unused)); | |
| 37 | dummy_semaphore.activity = 0; | |
| 608f8749 BB |
38 | ]) |
| 39 | ]) | |
| 40 | ||
| 41 | AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ACTIVITY], [ | |
| 42 | AC_MSG_CHECKING([whether struct rw_semaphore has member activity]) | |
| 43 | ZFS_LINUX_TEST_RESULT([rwsem_activity], [ | |
| 48ef8ba0 BB |
44 | AC_MSG_RESULT(yes) |
| 45 | AC_DEFINE(HAVE_RWSEM_ACTIVITY, 1, | |
| 608f8749 | 46 | [struct rw_semaphore has member activity]) |
| 48ef8ba0 BB |
47 | ],[ |
| 48 | AC_MSG_RESULT(no) | |
| 49 | ]) | |
| 48ef8ba0 BB |
50 | ]) |
| 51 | ||
| 52 | dnl # | |
| 53 | dnl # 4.8 API Change | |
| 54 | dnl # | |
| 55 | dnl # rwsem "->count" changed to atomic_long_t type | |
| 56 | dnl # | |
| 608f8749 BB |
57 | AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM_ATOMIC_LONG_COUNT], [ |
| 58 | ZFS_LINUX_TEST_SRC([rwsem_atomic_long_count], [ | |
| 48ef8ba0 BB |
59 | #include <linux/rwsem.h> |
| 60 | ],[ | |
| 61 | DECLARE_RWSEM(dummy_semaphore); | |
| 62 | (void) atomic_long_read(&dummy_semaphore.count); | |
| 608f8749 BB |
63 | ]) |
| 64 | ]) | |
| 65 | ||
| 66 | AC_DEFUN([ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT], [ | |
| 67 | AC_MSG_CHECKING( | |
| 68 | [whether struct rw_semaphore has atomic_long_t member count]) | |
| 69 | ZFS_LINUX_TEST_RESULT([rwsem_atomic_long_count], [ | |
| 48ef8ba0 BB |
70 | AC_MSG_RESULT(yes) |
| 71 | AC_DEFINE(HAVE_RWSEM_ATOMIC_LONG_COUNT, 1, | |
| 608f8749 | 72 | [struct rw_semaphore has atomic_long_t member count]) |
| 48ef8ba0 BB |
73 | ],[ |
| 74 | AC_MSG_RESULT(no) | |
| 75 | ]) | |
| 608f8749 BB |
76 | ]) |
| 77 | ||
| 78 | AC_DEFUN([ZFS_AC_KERNEL_SRC_RWSEM], [ | |
| 79 | ZFS_AC_KERNEL_SRC_RWSEM_SPINLOCK_IS_RAW | |
| 80 | ZFS_AC_KERNEL_SRC_RWSEM_ACTIVITY | |
| 81 | ZFS_AC_KERNEL_SRC_RWSEM_ATOMIC_LONG_COUNT | |
| 82 | ]) | |
| 83 | ||
| 84 | AC_DEFUN([ZFS_AC_KERNEL_RWSEM], [ | |
| 85 | ZFS_AC_KERNEL_RWSEM_SPINLOCK_IS_RAW | |
| 86 | ZFS_AC_KERNEL_RWSEM_ACTIVITY | |
| 87 | ZFS_AC_KERNEL_RWSEM_ATOMIC_LONG_COUNT | |
| 48ef8ba0 | 88 | ]) |