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85391ee931
Sponsored-by: https://despairlabs.com/sponsor/ Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Rob Norris <robn@despairlabs.com> Closes #18077
64 lines
1.8 KiB
Plaintext
64 lines
1.8 KiB
Plaintext
dnl # SPDX-License-Identifier: CDDL-1.0
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dnl #
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dnl # 2.6.37 API change
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dnl # The dops->d_automount() dentry operation was added as a clean
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dnl # solution to handling automounts. Prior to this cifs/nfs clients
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dnl # which required automount support would abuse the follow_link()
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dnl # operation on directories for this purpose.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_D_AUTOMOUNT], [
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ZFS_LINUX_TEST_SRC([dentry_operations_d_automount], [
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#include <linux/dcache.h>
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static struct vfsmount *d_automount(struct path *p) { return NULL; }
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struct dentry_operations dops __attribute__ ((unused)) = {
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.d_automount = d_automount,
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};
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_D_AUTOMOUNT], [
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AC_MSG_CHECKING([whether dops->d_automount() exists])
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ZFS_LINUX_TEST_RESULT([dentry_operations_d_automount], [
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AC_MSG_RESULT(yes)
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],[
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ZFS_LINUX_TEST_ERROR([dops->d_automount()])
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])
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])
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dnl #
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dnl # 6.14 API change
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dnl # dops->d_revalidate now has four args.
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dnl #
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AC_DEFUN([ZFS_AC_KERNEL_SRC_D_REVALIDATE_4ARGS], [
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ZFS_LINUX_TEST_SRC([dentry_operations_d_revalidate_4args], [
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#include <linux/dcache.h>
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static int d_revalidate(struct inode *dir,
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const struct qstr *name, struct dentry *dentry,
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unsigned int fl) { return 0; }
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struct dentry_operations dops __attribute__ ((unused)) = {
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.d_revalidate = d_revalidate,
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};
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])
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])
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AC_DEFUN([ZFS_AC_KERNEL_D_REVALIDATE_4ARGS], [
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AC_MSG_CHECKING([whether dops->d_revalidate() takes 4 args])
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ZFS_LINUX_TEST_RESULT([dentry_operations_d_revalidate_4args], [
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AC_MSG_RESULT(yes)
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AC_DEFINE(HAVE_D_REVALIDATE_4ARGS, 1,
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[dops->d_revalidate() takes 4 args])
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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_AUTOMOUNT], [
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ZFS_AC_KERNEL_SRC_D_AUTOMOUNT
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ZFS_AC_KERNEL_SRC_D_REVALIDATE_4ARGS
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])
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AC_DEFUN([ZFS_AC_KERNEL_AUTOMOUNT], [
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ZFS_AC_KERNEL_D_AUTOMOUNT
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ZFS_AC_KERNEL_D_REVALIDATE_4ARGS
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])
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