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Remove autoconf check for CONFIG_PREEMPT

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The autoconf macro which failed if CONFIG_PREEMPT was set in the kernel
config was removed. With the inclusion of a few previous patches
targeting support for preempt enabled kernels, it is now safe to run
with this kernel config option enabled.

Signed-off-by: Prakash Surya <surya1@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #83
This commit is contained in:
Prakash Surya 2012-08-24 11:37:44 -07:00 committed by Brian Behlendorf
parent ca8b5af89d
commit f86373f5b2
1 changed files with 0 additions and 19 deletions
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19
config/kernel.m4
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@ -393,28 +393,9 @@ AC_DEFUN([ZFS_AC_KERNEL_CONFIG], [
[Define to 1 if licensed under the GPL]) [Define to 1 if licensed under the GPL])
]) ])
ZFS_AC_KERNEL_CONFIG_PREEMPT
ZFS_AC_KERNEL_CONFIG_DEBUG_LOCK_ALLOC ZFS_AC_KERNEL_CONFIG_DEBUG_LOCK_ALLOC
]) ])
dnl #
dnl # Check CONFIG_PREEMPT
dnl #
dnl # Premptible kernels will be supported in the future. But at the
dnl # moment there are a few places in the code which need to be updated
dnl # to accomidate them. Until that work occurs we should detect this
dnl # at configure time and fail with a sensible message. Otherwise,
dnl # people will be able to build successfully, however they will have
dnl # stability problems. See https://github.com/zfsonlinux/zfs/issues/83
dnl #
AC_DEFUN([ZFS_AC_KERNEL_CONFIG_PREEMPT], [
ZFS_LINUX_CONFIG([PREEMPT],
AC_MSG_ERROR([
*** Kernel built with CONFIG_PREEMPT which is not supported.
*** You must rebuild your kernel without this option.]), [])
])
dnl # dnl #
dnl # Check CONFIG_DEBUG_LOCK_ALLOC dnl # Check CONFIG_DEBUG_LOCK_ALLOC
dnl # dnl #