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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
Download Patch File Download Diff File Expand all files Collapse all files
module/os/linux/zfs/zpl_xattr.c
+15 -10
View File
@@ -499,7 +499,7 @@ zpl_xattr_set_dir(struct inode *ip, const char *name, const void *value,
vap->va_gid = crgetgid(cr);
error = -zfs_create(dxzp, (char *)name, vap, 0, 0644, &xzp,
cr, ATTR_NOACLCHECK, NULL, kcred->user_ns);
cr, ATTR_NOACLCHECK, NULL, zfs_init_idmap);
if (error)
goto out;
}
@@ -738,7 +738,7 @@ __zpl_xattr_user_get(struct inode *ip, const char *name,
ZPL_XATTR_GET_WRAPPER(zpl_xattr_user_get);
static int
__zpl_xattr_user_set(struct user_namespace *user_ns,
__zpl_xattr_user_set(zidmap_t *user_ns,
struct inode *ip, const char *name,
const void *value, size_t size, int flags)
{
@@ -848,7 +848,7 @@ __zpl_xattr_trusted_get(struct inode *ip, const char *name,
ZPL_XATTR_GET_WRAPPER(zpl_xattr_trusted_get);
static int
__zpl_xattr_trusted_set(struct user_namespace *user_ns,
__zpl_xattr_trusted_set(zidmap_t *user_ns,
struct inode *ip, const char *name,
const void *value, size_t size, int flags)
{
@@ -918,7 +918,7 @@ __zpl_xattr_security_get(struct inode *ip, const char *name,
ZPL_XATTR_GET_WRAPPER(zpl_xattr_security_get);
static int
__zpl_xattr_security_set(struct user_namespace *user_ns,
__zpl_xattr_security_set(zidmap_t *user_ns,
struct inode *ip, const char *name,
const void *value, size_t size, int flags)
{
@@ -1061,6 +1061,9 @@ int
#ifdef HAVE_SET_ACL_USERNS
zpl_set_acl(struct user_namespace *userns, struct inode *ip,
struct posix_acl *acl, int type)
#elif defined(HAVE_SET_ACL_IDMAP_DENTRY)
zpl_set_acl(struct mnt_idmap *userns, struct dentry *dentry,
struct posix_acl *acl, int type)
#elif defined(HAVE_SET_ACL_USERNS_DENTRY_ARG2)
zpl_set_acl(struct user_namespace *userns, struct dentry *dentry,
struct posix_acl *acl, int type)
@@ -1070,6 +1073,8 @@ zpl_set_acl(struct inode *ip, struct posix_acl *acl, int type)
{
#ifdef HAVE_SET_ACL_USERNS_DENTRY_ARG2
return (zpl_set_acl_impl(d_inode(dentry), acl, type));
#elif defined(HAVE_SET_ACL_IDMAP_DENTRY)
return (zpl_set_acl_impl(d_inode(dentry), acl, type));
#else
return (zpl_set_acl_impl(ip, acl, type));
#endif /* HAVE_SET_ACL_USERNS_DENTRY_ARG2 */
@@ -1313,7 +1318,7 @@ __zpl_xattr_acl_get_default(struct inode *ip, const char *name,
ZPL_XATTR_GET_WRAPPER(zpl_xattr_acl_get_default);
static int
__zpl_xattr_acl_set_access(struct user_namespace *mnt_ns,
__zpl_xattr_acl_set_access(zidmap_t *mnt_ns,
struct inode *ip, const char *name,
const void *value, size_t size, int flags)
{
@@ -1328,12 +1333,12 @@ __zpl_xattr_acl_set_access(struct user_namespace *mnt_ns,
if (ITOZSB(ip)->z_acl_type != ZFS_ACLTYPE_POSIX)
return (-EOPNOTSUPP);
#if defined(HAVE_XATTR_SET_USERNS)
#if defined(HAVE_XATTR_SET_USERNS) || defined(HAVE_XATTR_SET_IDMAP)
if (!zpl_inode_owner_or_capable(mnt_ns, ip))
return (-EPERM);
#else
(void) mnt_ns;
if (!zpl_inode_owner_or_capable(kcred->user_ns, ip))
if (!zpl_inode_owner_or_capable(zfs_init_idmap, ip))
return (-EPERM);
#endif
@@ -1359,7 +1364,7 @@ __zpl_xattr_acl_set_access(struct user_namespace *mnt_ns,
ZPL_XATTR_SET_WRAPPER(zpl_xattr_acl_set_access);
static int
__zpl_xattr_acl_set_default(struct user_namespace *mnt_ns,
__zpl_xattr_acl_set_default(zidmap_t *mnt_ns,
struct inode *ip, const char *name,
const void *value, size_t size, int flags)
{
@@ -1374,12 +1379,12 @@ __zpl_xattr_acl_set_default(struct user_namespace *mnt_ns,
if (ITOZSB(ip)->z_acl_type != ZFS_ACLTYPE_POSIX)
return (-EOPNOTSUPP);
#if defined(HAVE_XATTR_SET_USERNS)
#if defined(HAVE_XATTR_SET_USERNS) || defined(HAVE_XATTR_SET_IDMAP)
if (!zpl_inode_owner_or_capable(mnt_ns, ip))
return (-EPERM);
#else
(void) mnt_ns;
if (!zpl_inode_owner_or_capable(kcred->user_ns, ip))
if (!zpl_inode_owner_or_capable(zfs_init_idmap, ip))
return (-EPERM);
#endif