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Linux 6.3 compat: idmapped mount API changes

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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
This commit is contained in:
youzhongyang
2023-04-10 17:15:36 -04:00
committed by GitHub
parent d0cbd9feaf
commit d4dc53dad2
40 changed files with 823 additions and 296 deletions
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config/kernel-tmpfile.m4
+26 -7
View File
@@ -4,6 +4,19 @@ dnl # Add support for i_op->tmpfile
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_TMPFILE], [
dnl #
dnl # 6.3 API change
dnl # The first arg is now struct mnt_idmap *
dnl #
ZFS_LINUX_TEST_SRC([inode_operations_tmpfile_mnt_idmap], [
#include <linux/fs.h>
int tmpfile(struct mnt_idmap *idmap,
struct inode *inode, struct file *file,
umode_t mode) { return 0; }
static struct inode_operations
iops __attribute__ ((unused)) = {
.tmpfile = tmpfile,
};
],[])
dnl # 6.1 API change
dnl # use struct file instead of struct dentry
dnl #
@@ -44,23 +57,29 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_TMPFILE], [
AC_DEFUN([ZFS_AC_KERNEL_TMPFILE], [
AC_MSG_CHECKING([whether i_op->tmpfile() exists])
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile], [
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile_mnt_idmap], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TMPFILE, 1, [i_op->tmpfile() exists])
AC_DEFINE(HAVE_TMPFILE_USERNS, 1, [i_op->tmpfile() has userns])
],[
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile_dentry_userns], [
AC_DEFINE(HAVE_TMPFILE_IDMAP, 1, [i_op->tmpfile() has mnt_idmap])
], [
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TMPFILE, 1, [i_op->tmpfile() exists])
AC_DEFINE(HAVE_TMPFILE_USERNS, 1, [i_op->tmpfile() has userns])
AC_DEFINE(HAVE_TMPFILE_DENTRY, 1, [i_op->tmpfile() uses old dentry signature])
],[
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile_dentry], [
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile_dentry_userns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TMPFILE, 1, [i_op->tmpfile() exists])
AC_DEFINE(HAVE_TMPFILE_USERNS, 1, [i_op->tmpfile() has userns])
AC_DEFINE(HAVE_TMPFILE_DENTRY, 1, [i_op->tmpfile() uses old dentry signature])
],[
ZFS_LINUX_REQUIRE_API([i_op->tmpfile()], [3.11])
ZFS_LINUX_TEST_RESULT([inode_operations_tmpfile_dentry], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_TMPFILE, 1, [i_op->tmpfile() exists])
AC_DEFINE(HAVE_TMPFILE_DENTRY, 1, [i_op->tmpfile() uses old dentry signature])
],[
ZFS_LINUX_REQUIRE_API([i_op->tmpfile()], [3.11])
])
])
])
])