diff options
| author | Brian Behlendorf <[email protected]> | 2018-01-24 11:33:47 -0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2018-01-24 11:33:47 -0800 |
| commit | 23602fdb39e1254c669707ec9d2d0e6bcdbf1771 (patch) | |
| tree | c294d9b4733ee141b6457285c6184e74fa0143a5 /config | |
| parent | fb79036f288ea60b59d21fe250bc17445cf69f37 (diff) | |
Add cv_timedwait_io()
Add missing helper function cv_timedwait_io(), it should be used
when waiting on IO with a specified timeout.
Reviewed-by: Tim Chase <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #674
Diffstat (limited to 'config')
| -rw-r--r-- | config/spl-build.m4 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/config/spl-build.m4 b/config/spl-build.m4 index 926abd5c8..afc8de65f 100644 --- a/config/spl-build.m4 +++ b/config/spl-build.m4 @@ -52,6 +52,7 @@ AC_DEFUN([SPL_AC_CONFIG_KERNEL], [ SPL_AC_KMEM_CACHE_CREATE_USERCOPY SPL_AC_WAIT_QUEUE_ENTRY_T SPL_AC_WAIT_QUEUE_HEAD_ENTRY + SPL_AC_IO_SCHEDULE_TIMEOUT SPL_AC_KERNEL_WRITE SPL_AC_KERNEL_READ SPL_AC_KERNEL_TIMER_FUNCTION_TIMER_LIST @@ -1599,6 +1600,26 @@ AC_DEFUN([SPL_AC_WAIT_QUEUE_HEAD_ENTRY], [ ]) dnl # +dnl # 3.19 API change +dnl # The io_schedule_timeout() function is present in all 2.6.32 kernels +dnl # but it was not exported until Linux 3.19. The RHEL 7.x kernels which +dnl # are based on a 3.10 kernel do export this symbol. +dnl # +AC_DEFUN([SPL_AC_IO_SCHEDULE_TIMEOUT], [ + AC_MSG_CHECKING([whether io_schedule_timeout() is available]) + SPL_LINUX_TRY_COMPILE_SYMBOL([ + #include <linux/sched.h> + ], [ + (void) io_schedule_timeout(1); + ], [io_schedule_timeout], [], [ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_IO_SCHEDULE_TIMEOUT, 1, [yes]) + ],[ + AC_MSG_RESULT(no) + ]) +]) + +dnl # dnl # 4.14 API change dnl # kernel_write() which was introduced in 3.9 was updated to take dnl # the offset as a pointer which is needed by vn_rdwr(). |