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d4dc53dad2
Linux kernel 6.3 changed a bunch of APIs to use the dedicated idmap type for mounts (struct mnt_idmap), we need to detect these changes and make zfs work with the new APIs. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Youzhong Yang <yyang@mathworks.com> Closes #14682
64 lines
1.8 KiB
Plaintext
64 lines
1.8 KiB
Plaintext
dnl #
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dnl # 2.6.39 API change,
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dnl # The is_owner_or_cap() macro was renamed to inode_owner_or_capable(),
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dnl # This is used for permission checks in the xattr and file attribute call
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dnl # paths.
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dnl #
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dnl # 5.12 API change,
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dnl # inode_owner_or_capable() now takes struct user_namespace *
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dnl # to support idmapped mounts
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OWNER_OR_CAPABLE], [
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ZFS_LINUX_TEST_SRC([inode_owner_or_capable], [
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#include <linux/fs.h>
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],[
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struct inode *ip = NULL;
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(void) inode_owner_or_capable(ip);
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])
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ZFS_LINUX_TEST_SRC([inode_owner_or_capable_userns], [
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#include <linux/fs.h>
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],[
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struct inode *ip = NULL;
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(void) inode_owner_or_capable(&init_user_ns, ip);
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])
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ZFS_LINUX_TEST_SRC([inode_owner_or_capable_mnt_idmap], [
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#include <linux/fs.h>
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#include <linux/mnt_idmapping.h>
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],[
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struct inode *ip = NULL;
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(void) inode_owner_or_capable(&nop_mnt_idmap, ip);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE], [
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AC_MSG_CHECKING([whether inode_owner_or_capable() exists])
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ZFS_LINUX_TEST_RESULT([inode_owner_or_capable], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE, 1,
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[inode_owner_or_capable() exists])
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], [
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(
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[whether inode_owner_or_capable() takes user_ns])
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ZFS_LINUX_TEST_RESULT([inode_owner_or_capable_userns], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE_USERNS, 1,
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[inode_owner_or_capable() takes user_ns])
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],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING(
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[whether inode_owner_or_capable() takes mnt_idmap])
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ZFS_LINUX_TEST_RESULT([inode_owner_or_capable_mnt_idmap], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE_IDMAP, 1,
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[inode_owner_or_capable() takes mnt_idmap])
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], [
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ZFS_LINUX_TEST_ERROR([capability])
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])
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])
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])
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])
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