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Diffstat (limited to 'config/kernel-follow-down-one.m4')
| -rw-r--r-- | config/kernel-follow-down-one.m4 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/config/kernel-follow-down-one.m4 b/config/kernel-follow-down-one.m4 new file mode 100644 index 000000000..63fa779d8 --- /dev/null +++ b/config/kernel-follow-down-one.m4 @@ -0,0 +1,20 @@ +dnl # +dnl # 2.6.38 API change +dnl # follow_down() renamed follow_down_one(). The original follow_down() +dnl # symbol still exists but will traverse down all the layers. +dnl # +AC_DEFUN([ZFS_AC_KERNEL_FOLLOW_DOWN_ONE], [ + AC_MSG_CHECKING([whether follow_down_one() is available]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/namei.h> + ],[ + struct path *p = NULL; + follow_down_one(p); + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_FOLLOW_DOWN_ONE, 1, + [follow_down_one() is available]) + ],[ + AC_MSG_RESULT(no) + ]) +]) |