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Commit | Line | Data |
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a5369b61 TH |
1 | dnl # |
2 | dnl # 4.16 kernel: check if struct posix_acl acl.a_refcount is a refcount_t. | |
3 | dnl # It's an atomic_t on older kernels. | |
4 | dnl # | |
5 | AC_DEFUN([ZFS_AC_KERNEL_ACL_HAS_REFCOUNT], [ | |
6 | AC_MSG_CHECKING([whether posix_acl has refcount_t]) | |
7 | ZFS_LINUX_TRY_COMPILE([ | |
8 | #include <linux/backing-dev.h> | |
9 | #include <linux/refcount.h> | |
10 | #include <linux/posix_acl.h> | |
11 | ],[ | |
12 | struct posix_acl acl; | |
13 | refcount_t *r __attribute__ ((unused)) = &acl.a_refcount; | |
14 | ],[ | |
15 | AC_MSG_RESULT(yes) | |
16 | AC_DEFINE(HAVE_ACL_REFCOUNT, 1, [posix_acl has refcount_t]) | |
17 | ],[ | |
18 | AC_MSG_RESULT(no) | |
19 | ]) | |
20 | ]) |