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Revert "Reduce dbuf_find() lock contention"
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1 dnl #
2 dnl # glibc 2.25
3 dnl #
4 AC_DEFUN([ZFS_AC_CONFIG_USER_MAKEDEV_IN_SYSMACROS], [
5 AC_MSG_CHECKING([makedev() is declared in sys/sysmacros.h])
6 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
7 #include <sys/sysmacros.h>
8 ]], [[
9 int k;
10 k = makedev(0,0);
11 ]])],[
12 AC_MSG_RESULT(yes)
13 AC_DEFINE(HAVE_MAKEDEV_IN_SYSMACROS, 1,
14 [makedev() is declared in sys/sysmacros.h])
15 ],[
16 AC_MSG_RESULT(no)
17 ])
18 ])
19
20 dnl #
21 dnl # glibc X < Y < 2.25
22 dnl #
23 AC_DEFUN([ZFS_AC_CONFIG_USER_MAKEDEV_IN_MKDEV], [
24 AC_MSG_CHECKING([makedev() is declared in sys/mkdev.h])
25 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
26 #include <sys/mkdev.h>
27 ]], [[
28 int k;
29 k = makedev(0,0);
30 ]])],[
31 AC_MSG_RESULT(yes)
32 AC_DEFINE(HAVE_MAKEDEV_IN_MKDEV, 1,
33 [makedev() is declared in sys/mkdev.h])
34 ],[
35 AC_MSG_RESULT(no)
36 ])
37 ])