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https://git.proxmox.com/git/mirror_zfs.git
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f0aca5f7bb
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. NOTE: This backport only includes the configure checks to detect the 6.3 idmap API changes. It does not include support for idmap. When provided the idmap variable is ignored in most case in the same way the user_ns argument was ignored. This change is solely to provide compatibility with the new interfaces. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Youzhong Yang <yyang@mathworks.com> Closes #14682
396 lines
11 KiB
Plaintext
396 lines
11 KiB
Plaintext
dnl #
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dnl # Check if posix_acl_release can be used from a ZFS_META_LICENSED
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dnl # module. The is_owner_or_cap macro was replaced by
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dnl # inode_owner_or_capable
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_RELEASE], [
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ZFS_LINUX_TEST_SRC([posix_acl_release], [
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#include <linux/cred.h>
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#include <linux/fs.h>
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#include <linux/posix_acl.h>
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], [
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struct posix_acl *tmp = posix_acl_alloc(1, 0);
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posix_acl_release(tmp);
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], [], [ZFS_META_LICENSE])
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])
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AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_RELEASE], [
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AC_MSG_CHECKING([whether posix_acl_release() is available])
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ZFS_LINUX_TEST_RESULT([posix_acl_release], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_POSIX_ACL_RELEASE, 1,
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[posix_acl_release() is available])
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AC_MSG_CHECKING([whether posix_acl_release() is GPL-only])
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ZFS_LINUX_TEST_RESULT([posix_acl_release_license], [
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AC_MSG_RESULT(no)
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],[
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_POSIX_ACL_RELEASE_GPL_ONLY, 1,
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[posix_acl_release() is GPL-only])
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])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 3.14 API change,
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dnl # set_cached_acl() and forget_cached_acl() changed from inline to
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dnl # EXPORT_SYMBOL. In the former case, they may not be usable because of
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dnl # posix_acl_release. In the latter case, we can always use them.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_SET_CACHED_ACL_USABLE], [
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ZFS_LINUX_TEST_SRC([set_cached_acl], [
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#include <linux/cred.h>
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#include <linux/fs.h>
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#include <linux/posix_acl.h>
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], [
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struct inode *ip = NULL;
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struct posix_acl *acl = posix_acl_alloc(1, 0);
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set_cached_acl(ip, ACL_TYPE_ACCESS, acl);
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forget_cached_acl(ip, ACL_TYPE_ACCESS);
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], [], [ZFS_META_LICENSE])
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])
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AC_DEFUN([ZFS_AC_KERNEL_SET_CACHED_ACL_USABLE], [
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AC_MSG_CHECKING([whether set_cached_acl() is usable])
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ZFS_LINUX_TEST_RESULT([set_cached_acl_license], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_SET_CACHED_ACL_USABLE, 1,
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[set_cached_acl() is usable])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 3.1 API change,
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dnl # posix_acl_chmod() was added as the preferred interface.
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dnl #
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dnl # 3.14 API change,
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dnl # posix_acl_chmod() was changed to __posix_acl_chmod()
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_CHMOD], [
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ZFS_LINUX_TEST_SRC([posix_acl_chmod], [
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#include <linux/fs.h>
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#include <linux/posix_acl.h>
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],[
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posix_acl_chmod(NULL, 0, 0)
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])
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ZFS_LINUX_TEST_SRC([__posix_acl_chmod], [
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#include <linux/fs.h>
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#include <linux/posix_acl.h>
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],[
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__posix_acl_chmod(NULL, 0, 0)
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_CHMOD], [
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AC_MSG_CHECKING([whether __posix_acl_chmod exists])
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ZFS_LINUX_TEST_RESULT([__posix_acl_chmod], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE___POSIX_ACL_CHMOD, 1,
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[__posix_acl_chmod() exists])
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],[
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AC_MSG_RESULT(no)
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AC_MSG_CHECKING([whether posix_acl_chmod exists])
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ZFS_LINUX_TEST_RESULT([posix_acl_chmod], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_POSIX_ACL_CHMOD, 1,
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[posix_acl_chmod() exists])
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],[
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ZFS_LINUX_TEST_ERROR([posix_acl_chmod()])
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])
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])
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])
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dnl #
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dnl # 3.1 API change,
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dnl # posix_acl_equiv_mode now wants an umode_t instead of a mode_t
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T], [
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ZFS_LINUX_TEST_SRC([posix_acl_equiv_mode], [
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#include <linux/fs.h>
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#include <linux/posix_acl.h>
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],[
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umode_t tmp;
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posix_acl_equiv_mode(NULL, &tmp);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T], [
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AC_MSG_CHECKING([whether posix_acl_equiv_mode() wants umode_t])
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ZFS_LINUX_TEST_RESULT([posix_acl_equiv_mode], [
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AC_MSG_RESULT(yes)
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],[
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ZFS_LINUX_TEST_ERROR([posix_acl_equiv_mode()])
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])
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])
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dnl #
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dnl # 4.8 API change,
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dnl # The function posix_acl_valid now must be passed a namespace.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_POSIX_ACL_VALID_WITH_NS], [
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ZFS_LINUX_TEST_SRC([posix_acl_valid_with_ns], [
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#include <linux/fs.h>
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#include <linux/posix_acl.h>
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],[
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struct user_namespace *user_ns = NULL;
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const struct posix_acl *acl = NULL;
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int error;
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error = posix_acl_valid(user_ns, acl);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_POSIX_ACL_VALID_WITH_NS], [
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AC_MSG_CHECKING([whether posix_acl_valid() wants user namespace])
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ZFS_LINUX_TEST_RESULT([posix_acl_valid_with_ns], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_POSIX_ACL_VALID_WITH_NS, 1,
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[posix_acl_valid() wants user namespace])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 3.1 API change,
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dnl # Check if inode_operations contains the function get_acl
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dnl #
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dnl # 5.15 API change,
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dnl # Added the bool rcu argument to get_acl for rcu path walk.
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dnl #
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dnl # 6.2 API change,
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dnl # get_acl() was renamed to get_inode_acl()
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_GET_ACL], [
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ZFS_LINUX_TEST_SRC([inode_operations_get_acl], [
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#include <linux/fs.h>
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struct posix_acl *get_acl_fn(struct inode *inode, int type)
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{ return NULL; }
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static const struct inode_operations
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iops __attribute__ ((unused)) = {
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.get_acl = get_acl_fn,
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};
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],[])
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ZFS_LINUX_TEST_SRC([inode_operations_get_acl_rcu], [
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#include <linux/fs.h>
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struct posix_acl *get_acl_fn(struct inode *inode, int type,
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bool rcu) { return NULL; }
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static const struct inode_operations
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iops __attribute__ ((unused)) = {
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.get_acl = get_acl_fn,
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};
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],[])
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ZFS_LINUX_TEST_SRC([inode_operations_get_inode_acl], [
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#include <linux/fs.h>
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struct posix_acl *get_inode_acl_fn(struct inode *inode, int type,
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bool rcu) { return NULL; }
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static const struct inode_operations
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iops __attribute__ ((unused)) = {
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.get_inode_acl = get_inode_acl_fn,
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};
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],[])
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])
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AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL], [
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AC_MSG_CHECKING([whether iops->get_acl() exists])
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ZFS_LINUX_TEST_RESULT([inode_operations_get_acl], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GET_ACL, 1, [iops->get_acl() exists])
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],[
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ZFS_LINUX_TEST_RESULT([inode_operations_get_acl_rcu], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GET_ACL_RCU, 1, [iops->get_acl() takes rcu])
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],[
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ZFS_LINUX_TEST_RESULT([inode_operations_get_inode_acl], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_GET_INODE_ACL, 1, [has iops->get_inode_acl()])
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],[
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ZFS_LINUX_TEST_ERROR([iops->get_acl() or iops->get_inode_acl()])
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])
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])
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])
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])
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dnl #
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dnl # 3.14 API change,
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dnl # Check if inode_operations contains the function set_acl
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dnl #
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dnl # 5.12 API change,
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dnl # set_acl() added a user_namespace* parameter first
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dnl #
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dnl # 6.2 API change,
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dnl # set_acl() second paramter changed to a struct dentry *
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dnl #
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dnl # 6.3 API change,
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dnl # set_acl() first parameter changed to struct mnt_idmap *
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_SET_ACL], [
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ZFS_LINUX_TEST_SRC([inode_operations_set_acl_mnt_idmap_dentry], [
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#include <linux/fs.h>
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int set_acl_fn(struct mnt_idmap *idmap,
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struct dentry *dent, struct posix_acl *acl,
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int type) { return 0; }
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static const struct inode_operations
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iops __attribute__ ((unused)) = {
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.set_acl = set_acl_fn,
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};
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],[])
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ZFS_LINUX_TEST_SRC([inode_operations_set_acl_userns_dentry], [
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#include <linux/fs.h>
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int set_acl_fn(struct user_namespace *userns,
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struct dentry *dent, struct posix_acl *acl,
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int type) { return 0; }
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static const struct inode_operations
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iops __attribute__ ((unused)) = {
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.set_acl = set_acl_fn,
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};
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],[])
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ZFS_LINUX_TEST_SRC([inode_operations_set_acl_userns], [
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#include <linux/fs.h>
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int set_acl_fn(struct user_namespace *userns,
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struct inode *inode, struct posix_acl *acl,
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int type) { return 0; }
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static const struct inode_operations
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iops __attribute__ ((unused)) = {
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.set_acl = set_acl_fn,
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};
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],[])
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ZFS_LINUX_TEST_SRC([inode_operations_set_acl], [
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#include <linux/fs.h>
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int set_acl_fn(struct inode *inode, struct posix_acl *acl,
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int type) { return 0; }
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static const struct inode_operations
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iops __attribute__ ((unused)) = {
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.set_acl = set_acl_fn,
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};
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],[])
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])
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AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL], [
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AC_MSG_CHECKING([whether iops->set_acl() exists])
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ZFS_LINUX_TEST_RESULT([inode_operations_set_acl_userns], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists])
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AC_DEFINE(HAVE_SET_ACL_USERNS, 1, [iops->set_acl() takes 4 args])
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],[
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ZFS_LINUX_TEST_RESULT([inode_operations_set_acl_mnt_idmap_dentry], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists])
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AC_DEFINE(HAVE_SET_ACL_IDMAP_DENTRY, 1,
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[iops->set_acl() takes 4 args, arg1 is struct mnt_idmap *])
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],[
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ZFS_LINUX_TEST_RESULT([inode_operations_set_acl_userns_dentry], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists])
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AC_DEFINE(HAVE_SET_ACL_USERNS_DENTRY_ARG2, 1,
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[iops->set_acl() takes 4 args, arg2 is struct dentry *])
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],[
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ZFS_LINUX_TEST_RESULT([inode_operations_set_acl], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists, takes 3 args])
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],[
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ZFS_LINUX_REQUIRE_API([i_op->set_acl()], [3.14])
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])
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])
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])
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])
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])
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dnl #
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dnl # 4.7 API change,
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dnl # The kernel get_acl will now check cache before calling i_op->get_acl and
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dnl # do set_cached_acl after that, so i_op->get_acl don't need to do that
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dnl # anymore.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_GET_ACL_HANDLE_CACHE], [
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ZFS_LINUX_TEST_SRC([get_acl_handle_cache], [
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#include <linux/fs.h>
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],[
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void *sentinel __attribute__ ((unused)) =
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uncached_acl_sentinel(NULL);
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_GET_ACL_HANDLE_CACHE], [
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AC_MSG_CHECKING([whether uncached_acl_sentinel() exists])
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ZFS_LINUX_TEST_RESULT([get_acl_handle_cache], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_KERNEL_GET_ACL_HANDLE_CACHE, 1,
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[uncached_acl_sentinel() exists])
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],[
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AC_MSG_RESULT(no)
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])
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])
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dnl #
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dnl # 4.16 kernel: check if struct posix_acl acl.a_refcount is a refcount_t.
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dnl # It's an atomic_t on older kernels.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_ACL_HAS_REFCOUNT], [
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ZFS_LINUX_TEST_SRC([acl_refcount], [
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#include <linux/backing-dev.h>
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#include <linux/refcount.h>
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#include <linux/posix_acl.h>
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],[
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struct posix_acl acl;
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refcount_t *r __attribute__ ((unused)) = &acl.a_refcount;
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_ACL_HAS_REFCOUNT], [
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AC_MSG_CHECKING([whether posix_acl has refcount_t])
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ZFS_LINUX_TEST_RESULT([acl_refcount], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_ACL_REFCOUNT, 1, [posix_acl has refcount_t])
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],[
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AC_MSG_RESULT(no)
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_SRC_ACL], [
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ZFS_AC_KERNEL_SRC_POSIX_ACL_RELEASE
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ZFS_AC_KERNEL_SRC_SET_CACHED_ACL_USABLE
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ZFS_AC_KERNEL_SRC_POSIX_ACL_CHMOD
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ZFS_AC_KERNEL_SRC_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T
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ZFS_AC_KERNEL_SRC_POSIX_ACL_VALID_WITH_NS
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ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_GET_ACL
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ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_SET_ACL
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ZFS_AC_KERNEL_SRC_GET_ACL_HANDLE_CACHE
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ZFS_AC_KERNEL_SRC_ACL_HAS_REFCOUNT
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])
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AC_DEFUN([ZFS_AC_KERNEL_ACL], [
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ZFS_AC_KERNEL_POSIX_ACL_RELEASE
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ZFS_AC_KERNEL_SET_CACHED_ACL_USABLE
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ZFS_AC_KERNEL_POSIX_ACL_CHMOD
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ZFS_AC_KERNEL_POSIX_ACL_EQUIV_MODE_WANTS_UMODE_T
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ZFS_AC_KERNEL_POSIX_ACL_VALID_WITH_NS
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ZFS_AC_KERNEL_INODE_OPERATIONS_GET_ACL
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ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL
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ZFS_AC_KERNEL_GET_ACL_HANDLE_CACHE
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ZFS_AC_KERNEL_ACL_HAS_REFCOUNT
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])
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