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authorBrian Behlendorf <[email protected]>2018-02-07 11:50:24 -0800
committerGitHub <[email protected]>2018-02-07 11:50:24 -0800
commit48ef8ba07094afcd67355940ca8db92d76f7c096 (patch)
treec0f847b7ce7c93950d313ca7708bce4bc1f3621e /config/kernel-kuidgid.m4
parent5461eefe50427a8f8caf0b92f0195c754bed8ec6 (diff)
Split spl-build.m4
Split the kernel interface configure checks in to seperate m4 macro files. This is intended to facilitate moving the spl source code in to the zfs repository. Reviewed-by: Tony Hutter <[email protected]> Signed-off-by: Brian Behlendorf <[email protected]> Closes #682
Diffstat (limited to 'config/kernel-kuidgid.m4')
-rw-r--r--config/kernel-kuidgid.m428
1 files changed, 28 insertions, 0 deletions
diff --git a/config/kernel-kuidgid.m4 b/config/kernel-kuidgid.m4
new file mode 100644
index 000000000..47d193783
--- /dev/null
+++ b/config/kernel-kuidgid.m4
@@ -0,0 +1,28 @@
+dnl #
+dnl # User namespaces, use kuid_t in place of uid_t
+dnl # where available. Not strictly a user namespaces thing
+dnl # but it should prevent surprises
+dnl #
+AC_DEFUN([SPL_AC_KUIDGID_T], [
+ AC_MSG_CHECKING([whether kuid_t/kgid_t is available])
+ SPL_LINUX_TRY_COMPILE([
+ #include <linux/uidgid.h>
+ ], [
+ kuid_t userid = KUIDT_INIT(0);
+ kgid_t groupid = KGIDT_INIT(0);
+ ],[
+ SPL_LINUX_TRY_COMPILE([
+ #include <linux/uidgid.h>
+ ], [
+ kuid_t userid = 0;
+ kgid_t groupid = 0;
+ ],[
+ AC_MSG_RESULT(yes; optional)
+ ],[
+ AC_MSG_RESULT(yes; mandatory)
+ AC_DEFINE(HAVE_KUIDGID_T, 1, [kuid_t/kgid_t in use])
+ ])
+ ],[
+ AC_MSG_RESULT(no)
+ ])
+])