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Linux 6.3 compat: idmapped mount API changes

Browse Source 
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
This commit is contained in:
youzhongyang
2023-04-10 17:15:36 -04:00
committed by Tony Hutter
parent 04305bbd18
commit f0aca5f7bb
28 changed files with 708 additions and 166 deletions
Download Patch File Download Diff File Expand all files Collapse all files
config/kernel-acl.m4
+28 -6
View File
@@ -236,7 +236,22 @@ dnl #
dnl # 6.2 API change,
dnl # set_acl() second paramter changed to a struct dentry *
dnl #
dnl # 6.3 API change,
dnl # set_acl() first parameter changed to struct mnt_idmap *
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_OPERATIONS_SET_ACL], [
ZFS_LINUX_TEST_SRC([inode_operations_set_acl_mnt_idmap_dentry], [
#include <linux/fs.h>
int set_acl_fn(struct mnt_idmap *idmap,
struct dentry *dent, struct posix_acl *acl,
int type) { return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.set_acl = set_acl_fn,
};
],[])
ZFS_LINUX_TEST_SRC([inode_operations_set_acl_userns_dentry], [
#include <linux/fs.h>
@@ -281,17 +296,24 @@ AC_DEFUN([ZFS_AC_KERNEL_INODE_OPERATIONS_SET_ACL], [
AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists])
AC_DEFINE(HAVE_SET_ACL_USERNS, 1, [iops->set_acl() takes 4 args])
],[
ZFS_LINUX_TEST_RESULT([inode_operations_set_acl_userns_dentry], [
ZFS_LINUX_TEST_RESULT([inode_operations_set_acl_mnt_idmap_dentry], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists])
AC_DEFINE(HAVE_SET_ACL_USERNS_DENTRY_ARG2, 1,
[iops->set_acl() takes 4 args, arg2 is struct dentry *])
AC_DEFINE(HAVE_SET_ACL_IDMAP_DENTRY, 1,
[iops->set_acl() takes 4 args, arg1 is struct mnt_idmap *])
],[
ZFS_LINUX_TEST_RESULT([inode_operations_set_acl], [
ZFS_LINUX_TEST_RESULT([inode_operations_set_acl_userns_dentry], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists, takes 3 args])
AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists])
AC_DEFINE(HAVE_SET_ACL_USERNS_DENTRY_ARG2, 1,
[iops->set_acl() takes 4 args, arg2 is struct dentry *])
],[
ZFS_LINUX_REQUIRE_API([i_op->set_acl()], [3.14])
ZFS_LINUX_TEST_RESULT([inode_operations_set_acl], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SET_ACL, 1, [iops->set_acl() exists, takes 3 args])
],[
ZFS_LINUX_REQUIRE_API([i_op->set_acl()], [3.14])
])
])
])
])
config/kernel-generic_fillattr.m4
+28 -9
View File
@@ -4,7 +4,10 @@ dnl #
dnl # generic_fillattr in linux/fs.h now requires a struct user_namespace*
dnl # as the first arg, to support idmapped mounts.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_FILLATTR_USERNS], [
dnl # 6.3 API
dnl # generic_fillattr() now takes struct mnt_idmap* as the first argument
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_FILLATTR], [
ZFS_LINUX_TEST_SRC([generic_fillattr_userns], [
#include <linux/fs.h>
],[
@@ -13,16 +16,32 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_GENERIC_FILLATTR_USERNS], [
struct kstat *k = NULL;
generic_fillattr(userns, in, k);
])
])
AC_DEFUN([ZFS_AC_KERNEL_GENERIC_FILLATTR_USERNS], [
AC_MSG_CHECKING([whether generic_fillattr requires struct user_namespace*])
ZFS_LINUX_TEST_RESULT([generic_fillattr_userns], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_GENERIC_FILLATTR_USERNS, 1,
[generic_fillattr requires struct user_namespace*])
ZFS_LINUX_TEST_SRC([generic_fillattr_mnt_idmap], [
#include <linux/fs.h>
],[
AC_MSG_RESULT([no])
struct mnt_idmap *idmap = NULL;
struct inode *in = NULL;
struct kstat *k = NULL;
generic_fillattr(idmap, in, k);
])
])
AC_DEFUN([ZFS_AC_KERNEL_GENERIC_FILLATTR], [
AC_MSG_CHECKING([whether generic_fillattr requires struct mnt_idmap*])
ZFS_LINUX_TEST_RESULT([generic_fillattr_mnt_idmap], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_GENERIC_FILLATTR_IDMAP, 1,
[generic_fillattr requires struct mnt_idmap*])
],[
AC_MSG_CHECKING([whether generic_fillattr requires struct user_namespace*])
ZFS_LINUX_TEST_RESULT([generic_fillattr_userns], [
AC_MSG_RESULT([yes])
AC_DEFINE(HAVE_GENERIC_FILLATTR_USERNS, 1,
[generic_fillattr requires struct user_namespace*])
],[
AC_MSG_RESULT([no])
])
])
])
config/kernel-inode-create.m4
+34 -7
View File
@@ -1,4 +1,22 @@
AC_DEFUN([ZFS_AC_KERNEL_SRC_CREATE], [
dnl #
dnl # 6.3 API change
dnl # The first arg is changed to struct mnt_idmap *
dnl #
ZFS_LINUX_TEST_SRC([create_mnt_idmap], [
#include <linux/fs.h>
#include <linux/sched.h>
int inode_create(struct mnt_idmap *idmap,
struct inode *inode ,struct dentry *dentry,
umode_t umode, bool flag) { return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.create = inode_create,
};
],[])
dnl #
dnl # 5.12 API change that added the struct user_namespace* arg
dnl # to the front of this function type's arg list.
@@ -35,19 +53,28 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_CREATE], [
])
AC_DEFUN([ZFS_AC_KERNEL_CREATE], [
AC_MSG_CHECKING([whether iops->create() takes struct user_namespace*])
ZFS_LINUX_TEST_RESULT([create_userns], [
AC_MSG_CHECKING([whether iops->create() takes struct mnt_idmap*])
ZFS_LINUX_TEST_RESULT([create_mnt_idmap], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IOPS_CREATE_USERNS, 1,
[iops->create() takes struct user_namespace*])
AC_DEFINE(HAVE_IOPS_CREATE_IDMAP, 1,
[iops->create() takes struct mnt_idmap*])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether iops->create() passes flags])
ZFS_LINUX_TEST_RESULT([create_flags], [
AC_MSG_CHECKING([whether iops->create() takes struct user_namespace*])
ZFS_LINUX_TEST_RESULT([create_userns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IOPS_CREATE_USERNS, 1,
[iops->create() takes struct user_namespace*])
],[
ZFS_LINUX_TEST_ERROR([iops->create()])
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether iops->create() passes flags])
ZFS_LINUX_TEST_RESULT([create_flags], [
AC_MSG_RESULT(yes)
],[
ZFS_LINUX_TEST_ERROR([iops->create()])
])
])
])
])
config/kernel-inode-getattr.m4
+47 -16
View File
@@ -1,4 +1,24 @@
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_GETATTR], [
dnl #
dnl # Linux 6.3 API
dnl # The first arg of getattr I/O operations handler type
dnl # is changed to struct mnt_idmap*
dnl #
ZFS_LINUX_TEST_SRC([inode_operations_getattr_mnt_idmap], [
#include <linux/fs.h>
int test_getattr(
struct mnt_idmap *idmap,
const struct path *p, struct kstat *k,
u32 request_mask, unsigned int query_flags)
{ return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.getattr = test_getattr,
};
],[])
dnl #
dnl # Linux 5.12 API
dnl # The getattr I/O operations handler type was extended to require
@@ -55,37 +75,48 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_GETATTR], [
AC_DEFUN([ZFS_AC_KERNEL_INODE_GETATTR], [
dnl #
dnl # Kernel 5.12 test
dnl # Kernel 6.3 test
dnl #
AC_MSG_CHECKING([whether iops->getattr() takes user_namespace])
ZFS_LINUX_TEST_RESULT([inode_operations_getattr_userns], [
AC_MSG_CHECKING([whether iops->getattr() takes mnt_idmap])
ZFS_LINUX_TEST_RESULT([inode_operations_getattr_mnt_idmap], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_USERNS_IOPS_GETATTR, 1,
[iops->getattr() takes struct user_namespace*])
AC_DEFINE(HAVE_IDMAP_IOPS_GETATTR, 1,
[iops->getattr() takes struct mnt_idmap*])
],[
AC_MSG_RESULT(no)
dnl #
dnl # Kernel 4.11 test
dnl # Kernel 5.12 test
dnl #
AC_MSG_CHECKING([whether iops->getattr() takes a path])
ZFS_LINUX_TEST_RESULT([inode_operations_getattr_path], [
AC_MSG_CHECKING([whether iops->getattr() takes user_namespace])
ZFS_LINUX_TEST_RESULT([inode_operations_getattr_userns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_PATH_IOPS_GETATTR, 1,
[iops->getattr() takes a path])
AC_DEFINE(HAVE_USERNS_IOPS_GETATTR, 1,
[iops->getattr() takes struct user_namespace*])
],[
AC_MSG_RESULT(no)
dnl #
dnl # Kernel < 4.11 test
dnl # Kernel 4.11 test
dnl #
AC_MSG_CHECKING([whether iops->getattr() takes a vfsmount])
ZFS_LINUX_TEST_RESULT([inode_operations_getattr_vfsmount], [
AC_MSG_CHECKING([whether iops->getattr() takes a path])
ZFS_LINUX_TEST_RESULT([inode_operations_getattr_path], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_VFSMOUNT_IOPS_GETATTR, 1,
[iops->getattr() takes a vfsmount])
AC_DEFINE(HAVE_PATH_IOPS_GETATTR, 1,
[iops->getattr() takes a path])
],[
AC_MSG_RESULT(no)
dnl #
dnl # Kernel < 4.11 test
dnl #
AC_MSG_CHECKING([whether iops->getattr() takes a vfsmount])
ZFS_LINUX_TEST_RESULT([inode_operations_getattr_vfsmount], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_VFSMOUNT_IOPS_GETATTR, 1,
[iops->getattr() takes a vfsmount])
],[
AC_MSG_RESULT(no)
])
])
])
])
config/kernel-inode-setattr.m4
+87
View File
@@ -0,0 +1,87 @@
AC_DEFUN([ZFS_AC_KERNEL_SRC_INODE_SETATTR], [
dnl #
dnl # Linux 6.3 API
dnl # The first arg of setattr I/O operations handler type
dnl # is changed to struct mnt_idmap*
dnl #
ZFS_LINUX_TEST_SRC([inode_operations_setattr_mnt_idmap], [
#include <linux/fs.h>
int test_setattr(
struct mnt_idmap *idmap,
struct dentry *de, struct iattr *ia)
{ return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.setattr = test_setattr,
};
],[])
dnl #
dnl # Linux 5.12 API
dnl # The setattr I/O operations handler type was extended to require
dnl # a struct user_namespace* as its first arg, to support idmapped
dnl # mounts.
dnl #
ZFS_LINUX_TEST_SRC([inode_operations_setattr_userns], [
#include <linux/fs.h>
int test_setattr(
struct user_namespace *userns,
struct dentry *de, struct iattr *ia)
{ return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.setattr = test_setattr,
};
],[])
ZFS_LINUX_TEST_SRC([inode_operations_setattr], [
#include <linux/fs.h>
int test_setattr(
struct dentry *de, struct iattr *ia)
{ return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.setattr = test_setattr,
};
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_INODE_SETATTR], [
dnl #
dnl # Kernel 6.3 test
dnl #
AC_MSG_CHECKING([whether iops->setattr() takes mnt_idmap])
ZFS_LINUX_TEST_RESULT([inode_operations_setattr_mnt_idmap], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IDMAP_IOPS_SETATTR, 1,
[iops->setattr() takes struct mnt_idmap*])
],[
AC_MSG_RESULT(no)
dnl #
dnl # Kernel 5.12 test
dnl #
AC_MSG_CHECKING([whether iops->setattr() takes user_namespace])
ZFS_LINUX_TEST_RESULT([inode_operations_setattr_userns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_USERNS_IOPS_SETATTR, 1,
[iops->setattr() takes struct user_namespace*])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether iops->setattr() exists])
ZFS_LINUX_TEST_RESULT([inode_operations_setattr], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IOPS_SETATTR, 1,
[iops->setattr() exists])
],[
AC_MSG_RESULT(no)
])
])
])
])
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])
])
])
])
])
config/kernel-mkdir.m4
+41 -14
View File
@@ -2,6 +2,22 @@ dnl #
dnl # Supported mkdir() interfaces checked newest to oldest.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_MKDIR], [
dnl #
dnl # 6.3 API change
dnl # mkdir() takes struct mnt_idmap * as the first arg
dnl #
ZFS_LINUX_TEST_SRC([mkdir_mnt_idmap], [
#include <linux/fs.h>
int mkdir(struct mnt_idmap *idmap,
struct inode *inode, struct dentry *dentry,
umode_t umode) { return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.mkdir = mkdir,
};
],[])
dnl #
dnl # 5.12 API change
dnl # The struct user_namespace arg was added as the first argument to
@@ -43,25 +59,36 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_MKDIR], [
AC_DEFUN([ZFS_AC_KERNEL_MKDIR], [
dnl #
dnl # 5.12 API change
dnl # The struct user_namespace arg was added as the first argument to
dnl # mkdir() of the iops structure.
dnl # 6.3 API change
dnl # mkdir() takes struct mnt_idmap * as the first arg
dnl #
AC_MSG_CHECKING([whether iops->mkdir() takes struct user_namespace*])
ZFS_LINUX_TEST_RESULT([mkdir_user_namespace], [
AC_MSG_CHECKING([whether iops->mkdir() takes struct mnt_idmap*])
ZFS_LINUX_TEST_RESULT([mkdir_mnt_idmap], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IOPS_MKDIR_USERNS, 1,
[iops->mkdir() takes struct user_namespace*])
AC_DEFINE(HAVE_IOPS_MKDIR_IDMAP, 1,
[iops->mkdir() takes struct mnt_idmap*])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether iops->mkdir() takes umode_t])
ZFS_LINUX_TEST_RESULT([inode_operations_mkdir], [
dnl #
dnl # 5.12 API change
dnl # The struct user_namespace arg was added as the first argument to
dnl # mkdir() of the iops structure.
dnl #
AC_MSG_CHECKING([whether iops->mkdir() takes struct user_namespace*])
ZFS_LINUX_TEST_RESULT([mkdir_user_namespace], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_MKDIR_UMODE_T, 1,
[iops->mkdir() takes umode_t])
AC_DEFINE(HAVE_IOPS_MKDIR_USERNS, 1,
[iops->mkdir() takes struct user_namespace*])
],[
ZFS_LINUX_TEST_ERROR([mkdir()])
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether iops->mkdir() takes umode_t])
ZFS_LINUX_TEST_RESULT([inode_operations_mkdir], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_MKDIR_UMODE_T, 1,
[iops->mkdir() takes umode_t])
],[
ZFS_LINUX_TEST_ERROR([mkdir()])
])
])
])
])
config/kernel-mknod.m4
+30 -4
View File
@@ -1,4 +1,22 @@
AC_DEFUN([ZFS_AC_KERNEL_SRC_MKNOD], [
dnl #
dnl # 6.3 API change
dnl # The first arg is now struct mnt_idmap*
dnl #
ZFS_LINUX_TEST_SRC([mknod_mnt_idmap], [
#include <linux/fs.h>
#include <linux/sched.h>
int tmp_mknod(struct mnt_idmap *idmap,
struct inode *inode ,struct dentry *dentry,
umode_t u, dev_t d) { return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.mknod = tmp_mknod,
};
],[])
dnl #
dnl # 5.12 API change that added the struct user_namespace* arg
dnl # to the front of this function type's arg list.
@@ -19,12 +37,20 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_MKNOD], [
])
AC_DEFUN([ZFS_AC_KERNEL_MKNOD], [
AC_MSG_CHECKING([whether iops->mknod() takes struct user_namespace*])
ZFS_LINUX_TEST_RESULT([mknod_userns], [
AC_MSG_CHECKING([whether iops->mknod() takes struct mnt_idmap*])
ZFS_LINUX_TEST_RESULT([mknod_mnt_idmap], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IOPS_MKNOD_USERNS, 1,
[iops->mknod() takes struct user_namespace*])
AC_DEFINE(HAVE_IOPS_MKNOD_IDMAP, 1,
[iops->mknod() takes struct mnt_idmap*])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether iops->mknod() takes struct user_namespace*])
ZFS_LINUX_TEST_RESULT([mknod_userns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IOPS_MKNOD_USERNS, 1,
[iops->mknod() takes struct user_namespace*])
],[
AC_MSG_RESULT(no)
])
])
])
config/kernel-rename.m4
+32 -8
View File
@@ -33,24 +33,48 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_RENAME], [
.rename = rename_fn,
};
],[])
dnl #
dnl # 6.3 API change - the first arg is now struct mnt_idmap*
dnl #
ZFS_LINUX_TEST_SRC([inode_operations_rename_mnt_idmap], [
#include <linux/fs.h>
int rename_fn(struct mnt_idmap *idmap, struct inode *sip,
struct dentry *sdp, struct inode *tip, struct dentry *tdp,
unsigned int flags) { return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.rename = rename_fn,
};
],[])
])
AC_DEFUN([ZFS_AC_KERNEL_RENAME], [
AC_MSG_CHECKING([whether iops->rename() takes struct user_namespace*])
ZFS_LINUX_TEST_RESULT([inode_operations_rename_userns], [
AC_MSG_CHECKING([whether iops->rename() takes struct mnt_idmap*])
ZFS_LINUX_TEST_RESULT([inode_operations_rename_mnt_idmap], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IOPS_RENAME_USERNS, 1,
[iops->rename() takes struct user_namespace*])
AC_DEFINE(HAVE_IOPS_RENAME_IDMAP, 1,
[iops->rename() takes struct mnt_idmap*])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether iop->rename() wants flags])
ZFS_LINUX_TEST_RESULT([inode_operations_rename_flags], [
AC_MSG_CHECKING([whether iops->rename() takes struct user_namespace*])
ZFS_LINUX_TEST_RESULT([inode_operations_rename_userns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_RENAME_WANTS_FLAGS, 1,
[iops->rename() wants flags])
AC_DEFINE(HAVE_IOPS_RENAME_USERNS, 1,
[iops->rename() takes struct user_namespace*])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether iops->rename() wants flags])
ZFS_LINUX_TEST_RESULT([inode_operations_rename_flags], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_RENAME_WANTS_FLAGS, 1,
[iops->rename() wants flags])
],[
AC_MSG_RESULT(no)
])
])
])
])
config/kernel-setattr-prepare.m4
+33 -11
View File
@@ -27,26 +27,48 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_SETATTR_PREPARE], [
int error __attribute__ ((unused)) =
setattr_prepare(userns, dentry, attr);
])
dnl #
dnl # 6.3 API change
dnl # The first arg of setattr_prepare() is changed to struct mnt_idmap*
dnl #
ZFS_LINUX_TEST_SRC([setattr_prepare_mnt_idmap], [
#include <linux/fs.h>
], [
struct dentry *dentry = NULL;
struct iattr *attr = NULL;
struct mnt_idmap *idmap = NULL;
int error __attribute__ ((unused)) =
setattr_prepare(idmap, dentry, attr);
])
])
AC_DEFUN([ZFS_AC_KERNEL_SETATTR_PREPARE], [
AC_MSG_CHECKING([whether setattr_prepare() is available and accepts struct user_namespace*])
ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare_userns],
AC_MSG_CHECKING([whether setattr_prepare() is available and accepts struct mnt_idmap*])
ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare_mnt_idmap],
[setattr_prepare], [fs/attr.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SETATTR_PREPARE_USERNS, 1,
[setattr_prepare() accepts user_namespace])
AC_DEFINE(HAVE_SETATTR_PREPARE_IDMAP, 1,
[setattr_prepare() accepts mnt_idmap])
], [
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether setattr_prepare() is available, doesn't accept user_namespace])
ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare],
[setattr_prepare], [fs/attr.c], [
AC_MSG_CHECKING([whether setattr_prepare() is available and accepts struct user_namespace*])
ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare_userns],
[setattr_prepare], [fs/attr.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SETATTR_PREPARE_NO_USERNS, 1,
[setattr_prepare() is available, doesn't accept user_namespace])
AC_DEFINE(HAVE_SETATTR_PREPARE_USERNS, 1,
[setattr_prepare() accepts user_namespace])
], [
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether setattr_prepare() is available, doesn't accept user_namespace])
ZFS_LINUX_TEST_RESULT_SYMBOL([setattr_prepare],
[setattr_prepare], [fs/attr.c], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_SETATTR_PREPARE_NO_USERNS, 1,
[setattr_prepare() is available, doesn't accept user_namespace])
], [
AC_MSG_RESULT(no)
])
])
])
])
config/kernel-symlink.m4
+28 -5
View File
@@ -1,4 +1,20 @@
AC_DEFUN([ZFS_AC_KERNEL_SRC_SYMLINK], [
dnl #
dnl # 6.3 API change that changed the first arg
dnl # to struct mnt_idmap*
dnl #
ZFS_LINUX_TEST_SRC([symlink_mnt_idmap], [
#include <linux/fs.h>
#include <linux/sched.h>
int tmp_symlink(struct mnt_idmap *idmap,
struct inode *inode ,struct dentry *dentry,
const char *path) { return 0; }
static const struct inode_operations
iops __attribute__ ((unused)) = {
.symlink = tmp_symlink,
};
],[])
dnl #
dnl # 5.12 API change that added the struct user_namespace* arg
dnl # to the front of this function type's arg list.
@@ -19,12 +35,19 @@ AC_DEFUN([ZFS_AC_KERNEL_SRC_SYMLINK], [
])
AC_DEFUN([ZFS_AC_KERNEL_SYMLINK], [
AC_MSG_CHECKING([whether iops->symlink() takes struct user_namespace*])
ZFS_LINUX_TEST_RESULT([symlink_userns], [
AC_MSG_CHECKING([whether iops->symlink() takes struct mnt_idmap*])
ZFS_LINUX_TEST_RESULT([symlink_mnt_idmap], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IOPS_SYMLINK_USERNS, 1,
[iops->symlink() takes struct user_namespace*])
AC_DEFINE(HAVE_IOPS_SYMLINK_IDMAP, 1,
[iops->symlink() takes struct mnt_idmap*])
],[
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether iops->symlink() takes struct user_namespace*])
ZFS_LINUX_TEST_RESULT([symlink_userns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_IOPS_SYMLINK_USERNS, 1,
[iops->symlink() takes struct user_namespace*])
],[
AC_MSG_RESULT(no)
])
])
])
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])
])
])
])
])
config/kernel-xattr-handler.m4
+58 -33
View File
@@ -179,6 +179,21 @@ dnl #
dnl # Supported xattr handler set() interfaces checked newest to oldest.
dnl #
AC_DEFUN([ZFS_AC_KERNEL_SRC_XATTR_HANDLER_SET], [
ZFS_LINUX_TEST_SRC([xattr_handler_set_mnt_idmap], [
#include <linux/xattr.h>
int set(const struct xattr_handler *handler,
struct mnt_idmap *idmap,
struct dentry *dentry, struct inode *inode,
const char *name, const void *buffer,
size_t size, int flags)
{ return 0; }
static const struct xattr_handler
xops __attribute__ ((unused)) = {
.set = set,
};
],[])
ZFS_LINUX_TEST_SRC([xattr_handler_set_userns], [
#include <linux/xattr.h>
@@ -240,53 +255,63 @@ AC_DEFUN([ZFS_AC_KERNEL_XATTR_HANDLER_SET], [
dnl # The xattr_handler->set() callback was changed to 8 arguments, and
dnl # struct user_namespace* was inserted as arg #2
dnl #
AC_MSG_CHECKING([whether xattr_handler->set() wants dentry, inode, and user_namespace])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_userns], [
dnl # 6.3 API change,
dnl # The xattr_handler->set() callback 2nd arg is now struct mnt_idmap *
dnl #
AC_MSG_CHECKING([whether xattr_handler->set() wants dentry, inode, and mnt_idmap])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_mnt_idmap], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_SET_USERNS, 1,
[xattr_handler->set() takes user_namespace])
],[
dnl #
dnl # 4.7 API change,
dnl # The xattr_handler->set() callback was changed to take both
dnl # dentry and inode.
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING([whether xattr_handler->set() wants dentry and inode])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_dentry_inode], [
AC_DEFINE(HAVE_XATTR_SET_IDMAP, 1,
[xattr_handler->set() takes mnt_idmap])
], [
AC_MSG_CHECKING([whether xattr_handler->set() wants dentry, inode, and user_namespace])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_userns], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_SET_DENTRY_INODE, 1,
[xattr_handler->set() wants both dentry and inode])
AC_DEFINE(HAVE_XATTR_SET_USERNS, 1,
[xattr_handler->set() takes user_namespace])
],[
dnl #
dnl # 4.4 API change,
dnl # The xattr_handler->set() callback was changed to take a
dnl # xattr_handler, and handler_flags argument was removed and
dnl # should be accessed by handler->flags.
dnl # 4.7 API change,
dnl # The xattr_handler->set() callback was changed to take both
dnl # dentry and inode.
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING(
[whether xattr_handler->set() wants xattr_handler])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_xattr_handler], [
AC_MSG_CHECKING([whether xattr_handler->set() wants dentry and inode])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_dentry_inode], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_SET_HANDLER, 1,
[xattr_handler->set() wants xattr_handler])
AC_DEFINE(HAVE_XATTR_SET_DENTRY_INODE, 1,
[xattr_handler->set() wants both dentry and inode])
],[
dnl #
dnl # 2.6.33 API change,
dnl # The xattr_handler->set() callback was changed
dnl # to take a dentry instead of an inode, and a
dnl # handler_flags argument was added.
dnl # 4.4 API change,
dnl # The xattr_handler->set() callback was changed to take a
dnl # xattr_handler, and handler_flags argument was removed and
dnl # should be accessed by handler->flags.
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING(
[whether xattr_handler->set() wants dentry])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_dentry], [
[whether xattr_handler->set() wants xattr_handler])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_xattr_handler], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_SET_DENTRY, 1,
[xattr_handler->set() wants dentry])
AC_DEFINE(HAVE_XATTR_SET_HANDLER, 1,
[xattr_handler->set() wants xattr_handler])
],[
ZFS_LINUX_TEST_ERROR([xattr set()])
dnl #
dnl # 2.6.33 API change,
dnl # The xattr_handler->set() callback was changed
dnl # to take a dentry instead of an inode, and a
dnl # handler_flags argument was added.
dnl #
AC_MSG_RESULT(no)
AC_MSG_CHECKING(
[whether xattr_handler->set() wants dentry])
ZFS_LINUX_TEST_RESULT([xattr_handler_set_dentry], [
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_XATTR_SET_DENTRY, 1,
[xattr_handler->set() wants dentry])
],[
ZFS_LINUX_TEST_ERROR([xattr set()])
])
])
])
])
config/kernel.m4
+4 -2
View File
@@ -69,6 +69,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
ZFS_AC_KERNEL_SRC_INODE_OWNER_OR_CAPABLE
ZFS_AC_KERNEL_SRC_XATTR
ZFS_AC_KERNEL_SRC_ACL
ZFS_AC_KERNEL_SRC_INODE_SETATTR
ZFS_AC_KERNEL_SRC_INODE_GETATTR
ZFS_AC_KERNEL_SRC_INODE_SET_FLAGS
ZFS_AC_KERNEL_SRC_INODE_SET_IVERSION
@@ -130,7 +131,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_SRC], [
ZFS_AC_KERNEL_SRC_KSTRTOUL
ZFS_AC_KERNEL_SRC_PERCPU
ZFS_AC_KERNEL_SRC_CPU_HOTPLUG
ZFS_AC_KERNEL_SRC_GENERIC_FILLATTR_USERNS
ZFS_AC_KERNEL_SRC_GENERIC_FILLATTR
ZFS_AC_KERNEL_SRC_MKNOD
ZFS_AC_KERNEL_SRC_SYMLINK
ZFS_AC_KERNEL_SRC_BIO_MAX_SEGS
@@ -194,6 +195,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
ZFS_AC_KERNEL_INODE_OWNER_OR_CAPABLE
ZFS_AC_KERNEL_XATTR
ZFS_AC_KERNEL_ACL
ZFS_AC_KERNEL_INODE_SETATTR
ZFS_AC_KERNEL_INODE_GETATTR
ZFS_AC_KERNEL_INODE_SET_FLAGS
ZFS_AC_KERNEL_INODE_SET_IVERSION
@@ -255,7 +257,7 @@ AC_DEFUN([ZFS_AC_KERNEL_TEST_RESULT], [
ZFS_AC_KERNEL_KSTRTOUL
ZFS_AC_KERNEL_PERCPU
ZFS_AC_KERNEL_CPU_HOTPLUG
ZFS_AC_KERNEL_GENERIC_FILLATTR_USERNS
ZFS_AC_KERNEL_GENERIC_FILLATTR
ZFS_AC_KERNEL_MKNOD
ZFS_AC_KERNEL_SYMLINK
ZFS_AC_KERNEL_BIO_MAX_SEGS