The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/config/kernel-iattr-vfsid.m4

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    1 dnl #
    2 dnl # 6.0 API change
    3 dnl # struct iattr has two unions for the uid and gid
    4 dnl #
    5 AC_DEFUN([ZFS_AC_KERNEL_SRC_IATTR_VFSID], [
    6         ZFS_LINUX_TEST_SRC([iattr_vfsid], [
    7                 #include <linux/fs.h>
    8         ], [
    9                 struct iattr ia;
   10                 ia.ia_vfsuid = (vfsuid_t){0};
   11                 ia.ia_vfsgid = (vfsgid_t){0};
   12         ])
   13 ])
   14 
   15 AC_DEFUN([ZFS_AC_KERNEL_IATTR_VFSID], [
   16         AC_MSG_CHECKING([whether iattr->ia_vfsuid and iattr->ia_vfsgid exist])
   17         ZFS_LINUX_TEST_RESULT([iattr_vfsid], [
   18                 AC_MSG_RESULT(yes)
   19                 AC_DEFINE(HAVE_IATTR_VFSID, 1,
   20                     [iattr->ia_vfsuid and iattr->ia_vfsgid exist])
   21         ],[
   22                 AC_MSG_RESULT(no)
   23         ])
   24 ])

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