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Diffstat (limited to 'config/kernel-super-userns.m4')
| -rw-r--r-- | config/kernel-super-userns.m4 | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/config/kernel-super-userns.m4 b/config/kernel-super-userns.m4 new file mode 100644 index 000000000..de94ad967 --- /dev/null +++ b/config/kernel-super-userns.m4 @@ -0,0 +1,21 @@ +dnl # +dnl # 4.8 API change +dnl # struct user_namespace was added to struct super_block as +dnl # super->s_user_ns member +dnl # +AC_DEFUN([ZFS_AC_KERNEL_SUPER_USER_NS], [ + AC_MSG_CHECKING([whether super_block->s_user_ns exists]) + ZFS_LINUX_TRY_COMPILE([ + #include <linux/fs.h> + #include <linux/user_namespace.h> + ],[ + struct super_block super; + super.s_user_ns = (struct user_namespace *)NULL; + ],[ + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_SUPER_USER_NS, 1, + [super_block->s_user_ns exists]) + ],[ + AC_MSG_RESULT(no) + ]) +]) |