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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-is_owner_or_cap.m4
+21 -4
View File
@@ -16,12 +16,20 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OWNER_OR_CAPABLE], [
(void) inode_owner_or_capable(ip);
])
ZFS_LINUX_TEST_SRC([inode_owner_or_capable_idmapped], [
ZFS_LINUX_TEST_SRC([inode_owner_or_capable_userns], [
#include <linux/fs.h>
],[
struct inode *ip = NULL;
(void) inode_owner_or_capable(&init_user_ns, ip);
])
ZFS_LINUX_TEST_SRC([inode_owner_or_capable_mnt_idmap], [
#include <linux/fs.h>
#include <linux/mnt_idmapping.h>
],[
struct inode *ip = NULL;
(void) inode_owner_or_capable(&nop_mnt_idmap, ip);
])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE], [
@@ -35,12 +43,21 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE], [
AC_MSG_CHECKING(
[whether inode_owner_or_capable() takes user_ns])
ZFS_LINUX_TEST_RESULT([inode_owner_or_capable_idmapped], [
ZFS_LINUX_TEST_RESULT([inode_owner_or_capable_userns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE_IDMAPPED, 1,
AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE_USERNS, 1,
[inode_owner_or_capable() takes user_ns])
],[
ZFS_LINUX_TEST_ERROR([capability])
AC_MSG_RESULT(no)
AC_MSG_CHECKING(
[whether inode_owner_or_capable() takes mnt_idmap])
ZFS_LINUX_TEST_RESULT([inode_owner_or_capable_mnt_idmap], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_OWNER_OR_CAPABLE_IDMAP, 1,
[inode_owner_or_capable() takes mnt_idmap])
], [
ZFS_LINUX_TEST_ERROR([capability])
])
])
])
])