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Remove CTL_UNNUMBERED sysctl interface

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Support for the CTL_UNNUMBERED sysctl interface was removed in
Linux 2.6.19.  There is no longer any reason to maintain this
compatibility code.  There also issue any reason to keep around
the CTL_NAME macro and helpers so they have been retired.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
This commit is contained in:
Brian Behlendorf
2014-09-30 18:15:22 -04:00
parent b38bf6a4e3
commit 9c91800d19
3 changed files with 4 additions and 195 deletions
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config/spl-build.m4
-22
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@@ -27,7 +27,6 @@ AC_DEFUN([SPL_AC_CONFIG_KERNEL], [
SPL_AC_TYPE_ATOMIC64_XCHG
SPL_AC_TYPE_UINTPTR_T
SPL_AC_SHRINKER_CALLBACK
SPL_AC_CTL_UNNUMBERED
SPL_AC_CTL_NAME
SPL_AC_VMALLOC_INFO
SPL_AC_PDE_DATA
@@ -975,27 +974,6 @@ AC_DEFUN([SPL_AC_SHRINKER_CALLBACK],[
EXTRA_KCFLAGS="$tmp_flags"
])
dnl #
dnl # 2.6.19 API change,
dnl # Use CTL_UNNUMBERED when binary sysctl is not required
dnl #
AC_DEFUN([SPL_AC_CTL_UNNUMBERED],
[AC_MSG_CHECKING([whether unnumbered sysctl support exists])
SPL_LINUX_TRY_COMPILE([
#include <linux/sysctl.h>
],[
#ifndef CTL_UNNUMBERED
#error CTL_UNNUMBERED undefined
#endif
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_CTL_UNNUMBERED, 1,
[unnumbered sysctl support exists])
],[
AC_MSG_RESULT(no)
])
])
dnl #
dnl # 2.6.33 API change,
dnl # Removed .ctl_name from struct ctl_table.