diff options
| author | Brian Behlendorf <[email protected]> | 2014-09-29 16:48:35 -0400 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2014-10-17 15:07:28 -0700 |
| commit | a80d69caf0daa28d661c88cb699bee02de2e312d (patch) | |
| tree | 0dd74a2c68cd28e82a7ed518e67cb71948b63726 /config | |
| parent | 56cfabd3e8ceac79703edd4453c2c2d89a15ff6f (diff) | |
Remove adaptive mutex implementation
Since the Linux 2.6.29 kernel all mutexes have been adaptive mutexs.
There is no longer any point in keeping this code so it is being
removed to simplify the code.
Signed-off-by: Brian Behlendorf <[email protected]>
Diffstat (limited to 'config')
| -rw-r--r-- | config/spl-build.m4 | 22 |
1 files changed, 3 insertions, 19 deletions
diff --git a/config/spl-build.m4 b/config/spl-build.m4 index 1acacb5b6..d8cc018de 100644 --- a/config/spl-build.m4 +++ b/config/spl-build.m4 @@ -28,7 +28,6 @@ AC_DEFUN([SPL_AC_CONFIG_KERNEL], [ SPL_AC_TYPE_UINTPTR_T SPL_AC_2ARGS_REGISTER_SYSCTL SPL_AC_SHRINKER_CALLBACK - SPL_AC_TASK_CURR SPL_AC_CTL_UNNUMBERED SPL_AC_CTL_NAME SPL_AC_VMALLOC_INFO @@ -998,23 +997,6 @@ AC_DEFUN([SPL_AC_SHRINKER_CALLBACK],[ ]) dnl # -dnl # Custom SPL patch may export this system it is not required -dnl # -AC_DEFUN([SPL_AC_TASK_CURR], - [AC_MSG_CHECKING([whether task_curr() is available]) - SPL_LINUX_TRY_COMPILE_SYMBOL([ - #include <linux/sched.h> - ], [ - task_curr(NULL); - ], [task_curr], [kernel/sched.c], [ - AC_MSG_RESULT(yes) - AC_DEFINE(HAVE_TASK_CURR, 1, [task_curr() is available]) - ], [ - AC_MSG_RESULT(no) - ]) -]) - -dnl # dnl # 2.6.19 API change, dnl # Use CTL_UNNUMBERED when binary sysctl is not required dnl # @@ -1220,7 +1202,9 @@ AC_DEFUN([SPL_AC_INODE_I_MUTEX], [ dnl # dnl # 2.6.29 API change, -dnl # Adaptive mutexs introduced. +dnl # Adaptive mutexs were introduced which track the mutex owner. The +dnl # mutex wrappers leverage this functionality to avoid tracking the +dnl # owner multipe times. dnl # AC_DEFUN([SPL_AC_MUTEX_OWNER], [ AC_MSG_CHECKING([whether struct mutex has owner]) |