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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_inode.c
+55 -22
View File
@@ -113,12 +113,12 @@ zpl_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
void
zpl_vap_init(vattr_t *vap, struct inode *dir, umode_t mode, cred_t *cr,
zuserns_t *mnt_ns)
zidmap_t *mnt_ns)
{
vap->va_mask = ATTR_MODE;
vap->va_mode = mode;
vap->va_uid = zfs_vfsuid_to_uid((struct user_namespace *)mnt_ns,
vap->va_uid = zfs_vfsuid_to_uid(mnt_ns,
zfs_i_user_ns(dir), crgetuid(cr));
if (dir->i_mode & S_ISGID) {
@@ -126,7 +126,7 @@ zpl_vap_init(vattr_t *vap, struct inode *dir, umode_t mode, cred_t *cr,
if (S_ISDIR(mode))
vap->va_mode |= S_ISGID;
} else {
vap->va_gid = zfs_vfsgid_to_gid((struct user_namespace *)mnt_ns,
vap->va_gid = zfs_vfsgid_to_gid(mnt_ns,
zfs_i_user_ns(dir), crgetgid(cr));
}
}
@@ -135,6 +135,9 @@ static int
#ifdef HAVE_IOPS_CREATE_USERNS
zpl_create(struct user_namespace *user_ns, struct inode *dir,
struct dentry *dentry, umode_t mode, bool flag)
#elif defined(HAVE_IOPS_CREATE_IDMAP)
zpl_create(struct mnt_idmap *user_ns, struct inode *dir,
struct dentry *dentry, umode_t mode, bool flag)
#else
zpl_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool flag)
#endif
@@ -144,8 +147,8 @@ zpl_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool flag)
vattr_t *vap;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_IOPS_CREATE_USERNS
zuserns_t *user_ns = kcred->user_ns;
#if !(defined(HAVE_IOPS_CREATE_USERNS) || defined(HAVE_IOPS_CREATE_IDMAP))
zidmap_t *user_ns = kcred->user_ns;
#endif
crhold(cr);
@@ -181,6 +184,9 @@ static int
#ifdef HAVE_IOPS_MKNOD_USERNS
zpl_mknod(struct user_namespace *user_ns, struct inode *dir,
struct dentry *dentry, umode_t mode,
#elif defined(HAVE_IOPS_MKNOD_IDMAP)
zpl_mknod(struct mnt_idmap *user_ns, struct inode *dir,
struct dentry *dentry, umode_t mode,
#else
zpl_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
#endif
@@ -191,8 +197,8 @@ zpl_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
vattr_t *vap;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_IOPS_MKNOD_USERNS
zuserns_t *user_ns = kcred->user_ns;
#if !(defined(HAVE_IOPS_MKNOD_USERNS) || defined(HAVE_IOPS_MKNOD_IDMAP))
zidmap_t *user_ns = kcred->user_ns;
#endif
/*
@@ -234,7 +240,10 @@ zpl_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
#ifdef HAVE_TMPFILE
static int
#ifndef HAVE_TMPFILE_DENTRY
#ifdef HAVE_TMPFILE_IDMAP
zpl_tmpfile(struct mnt_idmap *userns, struct inode *dir,
struct file *file, umode_t mode)
#elif !defined(HAVE_TMPFILE_DENTRY)
zpl_tmpfile(struct user_namespace *userns, struct inode *dir,
struct file *file, umode_t mode)
#else
@@ -251,8 +260,8 @@ zpl_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
vattr_t *vap;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_TMPFILE_USERNS
zuserns_t *userns = kcred->user_ns;
#if !(defined(HAVE_TMPFILE_USERNS) || defined(HAVE_TMPFILE_IDMAP))
zidmap_t *userns = kcred->user_ns;
#endif
crhold(cr);
@@ -330,6 +339,9 @@ static int
#ifdef HAVE_IOPS_MKDIR_USERNS
zpl_mkdir(struct user_namespace *user_ns, struct inode *dir,
struct dentry *dentry, umode_t mode)
#elif defined(HAVE_IOPS_MKDIR_IDMAP)
zpl_mkdir(struct mnt_idmap *user_ns, struct inode *dir,
struct dentry *dentry, umode_t mode)
#else
zpl_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
#endif
@@ -339,8 +351,8 @@ zpl_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
znode_t *zp;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_IOPS_MKDIR_USERNS
zuserns_t *user_ns = kcred->user_ns;
#if !(defined(HAVE_IOPS_MKDIR_USERNS) || defined(HAVE_IOPS_MKDIR_IDMAP))
zidmap_t *user_ns = kcred->user_ns;
#endif
crhold(cr);
@@ -403,6 +415,10 @@ static int
zpl_getattr_impl(struct user_namespace *user_ns,
const struct path *path, struct kstat *stat, u32 request_mask,
unsigned int query_flags)
#elif defined(HAVE_IDMAP_IOPS_GETATTR)
zpl_getattr_impl(struct mnt_idmap *user_ns,
const struct path *path, struct kstat *stat, u32 request_mask,
unsigned int query_flags)
#else
zpl_getattr_impl(const struct path *path, struct kstat *stat, u32 request_mask,
unsigned int query_flags)
@@ -419,7 +435,7 @@ zpl_getattr_impl(const struct path *path, struct kstat *stat, u32 request_mask,
* XXX query_flags currently ignored.
*/
#ifdef HAVE_USERNS_IOPS_GETATTR
#if (defined(HAVE_USERNS_IOPS_GETATTR) || defined(HAVE_IDMAP_IOPS_GETATTR))
error = -zfs_getattr_fast(user_ns, ip, stat);
#else
error = -zfs_getattr_fast(kcred->user_ns, ip, stat);
@@ -458,9 +474,12 @@ zpl_getattr_impl(const struct path *path, struct kstat *stat, u32 request_mask,
ZPL_GETATTR_WRAPPER(zpl_getattr);
static int
#ifdef HAVE_SETATTR_PREPARE_USERNS
#ifdef HAVE_USERNS_IOPS_SETATTR
zpl_setattr(struct user_namespace *user_ns, struct dentry *dentry,
struct iattr *ia)
#elif defined(HAVE_IDMAP_IOPS_SETATTR)
zpl_setattr(struct mnt_idmap *user_ns, struct dentry *dentry,
struct iattr *ia)
#else
zpl_setattr(struct dentry *dentry, struct iattr *ia)
#endif
@@ -473,8 +492,10 @@ zpl_setattr(struct dentry *dentry, struct iattr *ia)
#ifdef HAVE_SETATTR_PREPARE_USERNS
error = zpl_setattr_prepare(user_ns, dentry, ia);
#elif defined(HAVE_SETATTR_PREPARE_IDMAP)
error = zpl_setattr_prepare(user_ns, dentry, ia);
#else
error = zpl_setattr_prepare(kcred->user_ns, dentry, ia);
error = zpl_setattr_prepare(zfs_init_idmap, dentry, ia);
#endif
if (error)
return (error);
@@ -506,10 +527,12 @@ zpl_setattr(struct dentry *dentry, struct iattr *ia)
ip->i_atime = zpl_inode_timestamp_truncate(ia->ia_atime, ip);
cookie = spl_fstrans_mark();
#ifdef HAVE_SETATTR_PREPARE_USERNS
#ifdef HAVE_USERNS_IOPS_SETATTR
error = -zfs_setattr(ITOZ(ip), vap, 0, cr, user_ns);
#elif defined(HAVE_IDMAP_IOPS_SETATTR)
error = -zfs_setattr(ITOZ(ip), vap, 0, cr, user_ns);
#else
error = -zfs_setattr(ITOZ(ip), vap, 0, cr, kcred->user_ns);
error = -zfs_setattr(ITOZ(ip), vap, 0, cr, zfs_init_idmap);
#endif
if (!error && (ia->ia_valid & ATTR_MODE))
error = zpl_chmod_acl(ip);
@@ -527,6 +550,10 @@ static int
zpl_rename2(struct user_namespace *user_ns, struct inode *sdip,
struct dentry *sdentry, struct inode *tdip, struct dentry *tdentry,
unsigned int rflags)
#elif defined(HAVE_IOPS_RENAME_IDMAP)
zpl_rename2(struct mnt_idmap *user_ns, struct inode *sdip,
struct dentry *sdentry, struct inode *tdip, struct dentry *tdentry,
unsigned int rflags)
#else
zpl_rename2(struct inode *sdip, struct dentry *sdentry,
struct inode *tdip, struct dentry *tdentry, unsigned int rflags)
@@ -536,8 +563,8 @@ zpl_rename2(struct inode *sdip, struct dentry *sdentry,
vattr_t *wo_vap = NULL;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_IOPS_RENAME_USERNS
zuserns_t *user_ns = kcred->user_ns;
#if !(defined(HAVE_IOPS_RENAME_USERNS) || defined(HAVE_IOPS_RENAME_IDMAP))
zidmap_t *user_ns = kcred->user_ns;
#endif
crhold(cr);
@@ -561,7 +588,8 @@ zpl_rename2(struct inode *sdip, struct dentry *sdentry,
#if !defined(HAVE_IOPS_RENAME_USERNS) && \
!defined(HAVE_RENAME_WANTS_FLAGS) && \
!defined(HAVE_RENAME2)
!defined(HAVE_RENAME2) && \
!defined(HAVE_IOPS_RENAME_IDMAP)
static int
zpl_rename(struct inode *sdip, struct dentry *sdentry,
struct inode *tdip, struct dentry *tdentry)
@@ -574,6 +602,9 @@ static int
#ifdef HAVE_IOPS_SYMLINK_USERNS
zpl_symlink(struct user_namespace *user_ns, struct inode *dir,
struct dentry *dentry, const char *name)
#elif defined(HAVE_IOPS_SYMLINK_IDMAP)
zpl_symlink(struct mnt_idmap *user_ns, struct inode *dir,
struct dentry *dentry, const char *name)
#else
zpl_symlink(struct inode *dir, struct dentry *dentry, const char *name)
#endif
@@ -583,8 +614,8 @@ zpl_symlink(struct inode *dir, struct dentry *dentry, const char *name)
znode_t *zp;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_IOPS_SYMLINK_USERNS
zuserns_t *user_ns = kcred->user_ns;
#if !(defined(HAVE_IOPS_SYMLINK_USERNS) || defined(HAVE_IOPS_SYMLINK_IDMAP))
zidmap_t *user_ns = kcred->user_ns;
#endif
crhold(cr);
@@ -802,6 +833,8 @@ const struct inode_operations zpl_dir_inode_operations = {
.rename2 = zpl_rename2,
#elif defined(HAVE_RENAME_WANTS_FLAGS) || defined(HAVE_IOPS_RENAME_USERNS)
.rename = zpl_rename2,
#elif defined(HAVE_IOPS_RENAME_IDMAP)
.rename = zpl_rename2,
#else
.rename = zpl_rename,
#endif