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dbf6108b4d
mirror_zfs/module/os/linux/zfs/zpl_inode.c
Aleksa Sarai dbf6108b4d zfs_rename: support RENAME_* flags 
Implement support for Linux's RENAME_* flags (for renameat2). Aside from
being quite useful for userspace (providing race-free ways to exchange
paths and implement mv --no-clobber), they are used by overlayfs and are
thus required in order to use overlayfs-on-ZFS.

In order for us to represent the new renameat2(2) flags in the ZIL, we
create two new transaction types for the two flags which need
transactional-level support (RENAME_EXCHANGE and RENAME_WHITEOUT).
RENAME_NOREPLACE does not need any ZIL support because we know that if
the operation succeeded before creating the ZIL entry, there was no file
to be clobbered and thus it can be treated as a regular TX_RENAME.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Pavel Snajdr <snajpa@snajpa.net>
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Closes #12209
Closes #14070
2022-10-28 09:49:20 -07:00

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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or https://opensource.org/licenses/CDDL-1.0.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2011, Lawrence Livermore National Security, LLC.
* Copyright (c) 2015 by Chunwei Chen. All rights reserved.
*/
#include <sys/sysmacros.h>
#include <sys/zfs_ctldir.h>
#include <sys/zfs_vfsops.h>
#include <sys/zfs_vnops.h>
#include <sys/zfs_znode.h>
#include <sys/dmu_objset.h>
#include <sys/vfs.h>
#include <sys/zpl.h>
#include <sys/file.h>
static struct dentry *
zpl_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
{
cred_t *cr = CRED();
struct inode *ip;
znode_t *zp;
int error;
fstrans_cookie_t cookie;
pathname_t *ppn = NULL;
pathname_t pn;
int zfs_flags = 0;
zfsvfs_t *zfsvfs = dentry->d_sb->s_fs_info;
if (dlen(dentry) >= ZAP_MAXNAMELEN)
return (ERR_PTR(-ENAMETOOLONG));
crhold(cr);
cookie = spl_fstrans_mark();
/* If we are a case insensitive fs, we need the real name */
if (zfsvfs->z_case == ZFS_CASE_INSENSITIVE) {
zfs_flags = FIGNORECASE;
pn_alloc(&pn);
ppn = &pn;
}
error = -zfs_lookup(ITOZ(dir), dname(dentry), &zp,
zfs_flags, cr, NULL, ppn);
spl_fstrans_unmark(cookie);
ASSERT3S(error, <=, 0);
crfree(cr);
spin_lock(&dentry->d_lock);
dentry->d_time = jiffies;
spin_unlock(&dentry->d_lock);
if (error) {
/*
* If we have a case sensitive fs, we do not want to
* insert negative entries, so return NULL for ENOENT.
* Fall through if the error is not ENOENT. Also free memory.
*/
if (ppn) {
pn_free(ppn);
if (error == -ENOENT)
return (NULL);
}
if (error == -ENOENT)
return (d_splice_alias(NULL, dentry));
else
return (ERR_PTR(error));
}
ip = ZTOI(zp);
/*
* If we are case insensitive, call the correct function
* to install the name.
*/
if (ppn) {
struct dentry *new_dentry;
struct qstr ci_name;
if (strcmp(dname(dentry), pn.pn_buf) == 0) {
new_dentry = d_splice_alias(ip, dentry);
} else {
ci_name.name = pn.pn_buf;
ci_name.len = strlen(pn.pn_buf);
new_dentry = d_add_ci(dentry, ip, &ci_name);
}
pn_free(ppn);
return (new_dentry);
} else {
return (d_splice_alias(ip, dentry));
}
}
void
zpl_vap_init(vattr_t *vap, struct inode *dir, umode_t mode, cred_t *cr,
zuserns_t *mnt_ns)
{
vap->va_mask = ATTR_MODE;
vap->va_mode = mode;
vap->va_uid = zfs_uid_from_mnt((struct user_namespace *)mnt_ns,
crgetuid(cr));
if (dir && dir->i_mode & S_ISGID) {
vap->va_gid = KGID_TO_SGID(dir->i_gid);
if (S_ISDIR(mode))
vap->va_mode |= S_ISGID;
} else {
vap->va_gid = zfs_gid_from_mnt((struct user_namespace *)mnt_ns,
crgetgid(cr));
}
}
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)
#else
zpl_create(struct inode *dir, struct dentry *dentry, umode_t mode, bool flag)
#endif
{
cred_t *cr = CRED();
znode_t *zp;
vattr_t *vap;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_IOPS_CREATE_USERNS
zuserns_t *user_ns = NULL;
#endif
crhold(cr);
vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
zpl_vap_init(vap, dir, mode, cr, user_ns);
cookie = spl_fstrans_mark();
error = -zfs_create(ITOZ(dir), dname(dentry), vap, 0,
mode, &zp, cr, 0, NULL, user_ns);
if (error == 0) {
error = zpl_xattr_security_init(ZTOI(zp), dir, &dentry->d_name);
if (error == 0)
error = zpl_init_acl(ZTOI(zp), dir);
if (error) {
(void) zfs_remove(ITOZ(dir), dname(dentry), cr, 0);
remove_inode_hash(ZTOI(zp));
iput(ZTOI(zp));
} else {
d_instantiate(dentry, ZTOI(zp));
}
}
spl_fstrans_unmark(cookie);
kmem_free(vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
static int
#ifdef HAVE_IOPS_MKNOD_USERNS
zpl_mknod(struct user_namespace *user_ns, struct inode *dir,
struct dentry *dentry, umode_t mode,
#else
zpl_mknod(struct inode *dir, struct dentry *dentry, umode_t mode,
#endif
dev_t rdev)
{
cred_t *cr = CRED();
znode_t *zp;
vattr_t *vap;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_IOPS_MKNOD_USERNS
zuserns_t *user_ns = NULL;
#endif
/*
* We currently expect Linux to supply rdev=0 for all sockets
* and fifos, but we want to know if this behavior ever changes.
*/
if (S_ISSOCK(mode) || S_ISFIFO(mode))
ASSERT(rdev == 0);
crhold(cr);
vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
zpl_vap_init(vap, dir, mode, cr, user_ns);
vap->va_rdev = rdev;
cookie = spl_fstrans_mark();
error = -zfs_create(ITOZ(dir), dname(dentry), vap, 0,
mode, &zp, cr, 0, NULL, user_ns);
if (error == 0) {
error = zpl_xattr_security_init(ZTOI(zp), dir, &dentry->d_name);
if (error == 0)
error = zpl_init_acl(ZTOI(zp), dir);
if (error) {
(void) zfs_remove(ITOZ(dir), dname(dentry), cr, 0);
remove_inode_hash(ZTOI(zp));
iput(ZTOI(zp));
} else {
d_instantiate(dentry, ZTOI(zp));
}
}
spl_fstrans_unmark(cookie);
kmem_free(vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
#ifdef HAVE_TMPFILE
static int
#ifdef HAVE_TMPFILE_USERNS
zpl_tmpfile(struct user_namespace *userns, struct inode *dir,
struct dentry *dentry, umode_t mode)
#else
zpl_tmpfile(struct inode *dir, struct dentry *dentry, umode_t mode)
#endif
{
cred_t *cr = CRED();
struct inode *ip;
vattr_t *vap;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_TMPFILE_USERNS
zuserns_t *userns = NULL;
#endif
crhold(cr);
vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
/*
* The VFS does not apply the umask, therefore it is applied here
* when POSIX ACLs are not enabled.
*/
if (!IS_POSIXACL(dir))
mode &= ~current_umask();
zpl_vap_init(vap, dir, mode, cr, userns);
cookie = spl_fstrans_mark();
error = -zfs_tmpfile(dir, vap, 0, mode, &ip, cr, 0, NULL, userns);
if (error == 0) {
/* d_tmpfile will do drop_nlink, so we should set it first */
set_nlink(ip, 1);
d_tmpfile(dentry, ip);
error = zpl_xattr_security_init(ip, dir, &dentry->d_name);
if (error == 0)
error = zpl_init_acl(ip, dir);
/*
* don't need to handle error here, file is already in
* unlinked set.
*/
}
spl_fstrans_unmark(cookie);
kmem_free(vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
#endif
static int
zpl_unlink(struct inode *dir, struct dentry *dentry)
{
cred_t *cr = CRED();
int error;
fstrans_cookie_t cookie;
zfsvfs_t *zfsvfs = dentry->d_sb->s_fs_info;
crhold(cr);
cookie = spl_fstrans_mark();
error = -zfs_remove(ITOZ(dir), dname(dentry), cr, 0);
/*
* For a CI FS we must invalidate the dentry to prevent the
* creation of negative entries.
*/
if (error == 0 && zfsvfs->z_case == ZFS_CASE_INSENSITIVE)
d_invalidate(dentry);
spl_fstrans_unmark(cookie);
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
static int
#ifdef HAVE_IOPS_MKDIR_USERNS
zpl_mkdir(struct user_namespace *user_ns, struct inode *dir,
struct dentry *dentry, umode_t mode)
#else
zpl_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
#endif
{
cred_t *cr = CRED();
vattr_t *vap;
znode_t *zp;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_IOPS_MKDIR_USERNS
zuserns_t *user_ns = NULL;
#endif
crhold(cr);
vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
zpl_vap_init(vap, dir, mode | S_IFDIR, cr, user_ns);
cookie = spl_fstrans_mark();
error = -zfs_mkdir(ITOZ(dir), dname(dentry), vap, &zp, cr, 0, NULL,
user_ns);
if (error == 0) {
error = zpl_xattr_security_init(ZTOI(zp), dir, &dentry->d_name);
if (error == 0)
error = zpl_init_acl(ZTOI(zp), dir);
if (error) {
(void) zfs_rmdir(ITOZ(dir), dname(dentry), NULL, cr, 0);
remove_inode_hash(ZTOI(zp));
iput(ZTOI(zp));
} else {
d_instantiate(dentry, ZTOI(zp));
}
}
spl_fstrans_unmark(cookie);
kmem_free(vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
static int
zpl_rmdir(struct inode *dir, struct dentry *dentry)
{
cred_t *cr = CRED();
int error;
fstrans_cookie_t cookie;
zfsvfs_t *zfsvfs = dentry->d_sb->s_fs_info;
crhold(cr);
cookie = spl_fstrans_mark();
error = -zfs_rmdir(ITOZ(dir), dname(dentry), NULL, cr, 0);
/*
* For a CI FS we must invalidate the dentry to prevent the
* creation of negative entries.
*/
if (error == 0 && zfsvfs->z_case == ZFS_CASE_INSENSITIVE)
d_invalidate(dentry);
spl_fstrans_unmark(cookie);
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
static int
#ifdef HAVE_USERNS_IOPS_GETATTR
zpl_getattr_impl(struct user_namespace *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)
#endif
{
int error;
fstrans_cookie_t cookie;
struct inode *ip = path->dentry->d_inode;
znode_t *zp __maybe_unused = ITOZ(ip);
cookie = spl_fstrans_mark();
/*
* XXX query_flags currently ignored.
*/
#ifdef HAVE_USERNS_IOPS_GETATTR
error = -zfs_getattr_fast(user_ns, ip, stat);
#else
error = -zfs_getattr_fast(kcred->user_ns, ip, stat);
#endif
#ifdef STATX_BTIME
if (request_mask & STATX_BTIME) {
stat->btime = zp->z_btime;
stat->result_mask |= STATX_BTIME;
}
#endif
#ifdef STATX_ATTR_IMMUTABLE
if (zp->z_pflags & ZFS_IMMUTABLE)
stat->attributes |= STATX_ATTR_IMMUTABLE;
stat->attributes_mask |= STATX_ATTR_IMMUTABLE;
#endif
#ifdef STATX_ATTR_APPEND
if (zp->z_pflags & ZFS_APPENDONLY)
stat->attributes |= STATX_ATTR_APPEND;
stat->attributes_mask |= STATX_ATTR_APPEND;
#endif
#ifdef STATX_ATTR_NODUMP
if (zp->z_pflags & ZFS_NODUMP)
stat->attributes |= STATX_ATTR_NODUMP;
stat->attributes_mask |= STATX_ATTR_NODUMP;
#endif
spl_fstrans_unmark(cookie);
ASSERT3S(error, <=, 0);
return (error);
}
ZPL_GETATTR_WRAPPER(zpl_getattr);
static int
#ifdef HAVE_SETATTR_PREPARE_USERNS
zpl_setattr(struct user_namespace *user_ns, struct dentry *dentry,
struct iattr *ia)
#else
zpl_setattr(struct dentry *dentry, struct iattr *ia)
#endif
{
struct inode *ip = dentry->d_inode;
cred_t *cr = CRED();
vattr_t *vap;
int error;
fstrans_cookie_t cookie;
#ifdef HAVE_SETATTR_PREPARE_USERNS
error = zpl_setattr_prepare(user_ns, dentry, ia);
#else
error = zpl_setattr_prepare(kcred->user_ns, dentry, ia);
#endif
if (error)
return (error);
crhold(cr);
vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
vap->va_mask = ia->ia_valid & ATTR_IATTR_MASK;
vap->va_mode = ia->ia_mode;
vap->va_uid = KUID_TO_SUID(ia->ia_uid);
vap->va_gid = KGID_TO_SGID(ia->ia_gid);
vap->va_size = ia->ia_size;
vap->va_atime = ia->ia_atime;
vap->va_mtime = ia->ia_mtime;
vap->va_ctime = ia->ia_ctime;
if (vap->va_mask & ATTR_ATIME)
ip->i_atime = zpl_inode_timestamp_truncate(ia->ia_atime, ip);
cookie = spl_fstrans_mark();
#ifdef HAVE_SETATTR_PREPARE_USERNS
error = -zfs_setattr(ITOZ(ip), vap, 0, cr, user_ns);
#else
error = -zfs_setattr(ITOZ(ip), vap, 0, cr, NULL);
#endif
if (!error && (ia->ia_valid & ATTR_MODE))
error = zpl_chmod_acl(ip);
spl_fstrans_unmark(cookie);
kmem_free(vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
static int
#ifdef HAVE_IOPS_RENAME_USERNS
zpl_rename2(struct user_namespace *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)
#endif
{
cred_t *cr = CRED();
vattr_t *wo_vap = NULL;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_IOPS_RENAME_USERNS
zuserns_t *user_ns = NULL;
#endif
crhold(cr);
if (rflags & RENAME_WHITEOUT) {
wo_vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
zpl_vap_init(wo_vap, sdip, S_IFCHR, cr, user_ns);
wo_vap->va_rdev = makedevice(0, 0);
}
cookie = spl_fstrans_mark();
error = -zfs_rename(ITOZ(sdip), dname(sdentry), ITOZ(tdip),
dname(tdentry), cr, 0, rflags, wo_vap, user_ns);
spl_fstrans_unmark(cookie);
if (wo_vap)
kmem_free(wo_vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
#if !defined(HAVE_IOPS_RENAME_USERNS) && \
!defined(HAVE_RENAME_WANTS_FLAGS) && \
!defined(HAVE_RENAME2)
static int
zpl_rename(struct inode *sdip, struct dentry *sdentry,
struct inode *tdip, struct dentry *tdentry)
{
return (zpl_rename2(sdip, sdentry, tdip, tdentry, 0));
}
#endif
static int
#ifdef HAVE_IOPS_SYMLINK_USERNS
zpl_symlink(struct user_namespace *user_ns, struct inode *dir,
struct dentry *dentry, const char *name)
#else
zpl_symlink(struct inode *dir, struct dentry *dentry, const char *name)
#endif
{
cred_t *cr = CRED();
vattr_t *vap;
znode_t *zp;
int error;
fstrans_cookie_t cookie;
#ifndef HAVE_IOPS_SYMLINK_USERNS
zuserns_t *user_ns = NULL;
#endif
crhold(cr);
vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
zpl_vap_init(vap, dir, S_IFLNK | S_IRWXUGO, cr, user_ns);
cookie = spl_fstrans_mark();
error = -zfs_symlink(ITOZ(dir), dname(dentry), vap,
(char *)name, &zp, cr, 0, user_ns);
if (error == 0) {
error = zpl_xattr_security_init(ZTOI(zp), dir, &dentry->d_name);
if (error) {
(void) zfs_remove(ITOZ(dir), dname(dentry), cr, 0);
remove_inode_hash(ZTOI(zp));
iput(ZTOI(zp));
} else {
d_instantiate(dentry, ZTOI(zp));
}
}
spl_fstrans_unmark(cookie);
kmem_free(vap, sizeof (vattr_t));
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
#if defined(HAVE_PUT_LINK_COOKIE)
static void
zpl_put_link(struct inode *unused, void *cookie)
{
kmem_free(cookie, MAXPATHLEN);
}
#elif defined(HAVE_PUT_LINK_NAMEIDATA)
static void
zpl_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr)
{
const char *link = nd_get_link(nd);
if (!IS_ERR(link))
kmem_free(link, MAXPATHLEN);
}
#elif defined(HAVE_PUT_LINK_DELAYED)
static void
zpl_put_link(void *ptr)
{
kmem_free(ptr, MAXPATHLEN);
}
#endif
static int
zpl_get_link_common(struct dentry *dentry, struct inode *ip, char **link)
{
fstrans_cookie_t cookie;
cred_t *cr = CRED();
int error;
crhold(cr);
*link = NULL;
struct iovec iov;
iov.iov_len = MAXPATHLEN;
iov.iov_base = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
zfs_uio_t uio;
zfs_uio_iovec_init(&uio, &iov, 1, 0, UIO_SYSSPACE, MAXPATHLEN - 1, 0);
cookie = spl_fstrans_mark();
error = -zfs_readlink(ip, &uio, cr);
spl_fstrans_unmark(cookie);
crfree(cr);
if (error)
kmem_free(iov.iov_base, MAXPATHLEN);
else
*link = iov.iov_base;
return (error);
}
#if defined(HAVE_GET_LINK_DELAYED)
static const char *
zpl_get_link(struct dentry *dentry, struct inode *inode,
struct delayed_call *done)
{
char *link = NULL;
int error;
if (!dentry)
return (ERR_PTR(-ECHILD));
error = zpl_get_link_common(dentry, inode, &link);
if (error)
return (ERR_PTR(error));
set_delayed_call(done, zpl_put_link, link);
return (link);
}
#elif defined(HAVE_GET_LINK_COOKIE)
static const char *
zpl_get_link(struct dentry *dentry, struct inode *inode, void **cookie)
{
char *link = NULL;
int error;
if (!dentry)
return (ERR_PTR(-ECHILD));
error = zpl_get_link_common(dentry, inode, &link);
if (error)
return (ERR_PTR(error));
return (*cookie = link);
}
#elif defined(HAVE_FOLLOW_LINK_COOKIE)
static const char *
zpl_follow_link(struct dentry *dentry, void **cookie)
{
char *link = NULL;
int error;
error = zpl_get_link_common(dentry, dentry->d_inode, &link);
if (error)
return (ERR_PTR(error));
return (*cookie = link);
}
#elif defined(HAVE_FOLLOW_LINK_NAMEIDATA)
static void *
zpl_follow_link(struct dentry *dentry, struct nameidata *nd)
{
char *link = NULL;
int error;
error = zpl_get_link_common(dentry, dentry->d_inode, &link);
if (error)
nd_set_link(nd, ERR_PTR(error));
else
nd_set_link(nd, link);
return (NULL);
}
#endif
static int
zpl_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
{
cred_t *cr = CRED();
struct inode *ip = old_dentry->d_inode;
int error;
fstrans_cookie_t cookie;
if (ip->i_nlink >= ZFS_LINK_MAX)
return (-EMLINK);
crhold(cr);
ip->i_ctime = current_time(ip);
/* Must have an existing ref, so igrab() cannot return NULL */
VERIFY3P(igrab(ip), !=, NULL);
cookie = spl_fstrans_mark();
error = -zfs_link(ITOZ(dir), ITOZ(ip), dname(dentry), cr, 0);
if (error) {
iput(ip);
goto out;
}
d_instantiate(dentry, ip);
out:
spl_fstrans_unmark(cookie);
crfree(cr);
ASSERT3S(error, <=, 0);
return (error);
}
const struct inode_operations zpl_inode_operations = {
.setattr = zpl_setattr,
.getattr = zpl_getattr,
#ifdef HAVE_GENERIC_SETXATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
.removexattr = generic_removexattr,
#endif
.listxattr = zpl_xattr_list,
#if defined(CONFIG_FS_POSIX_ACL)
#if defined(HAVE_SET_ACL)
.set_acl = zpl_set_acl,
#endif /* HAVE_SET_ACL */
.get_acl = zpl_get_acl,
#endif /* CONFIG_FS_POSIX_ACL */
};
#ifdef HAVE_RENAME2_OPERATIONS_WRAPPER
const struct inode_operations_wrapper zpl_dir_inode_operations = {
.ops = {
#else
const struct inode_operations zpl_dir_inode_operations = {
#endif
.create = zpl_create,
.lookup = zpl_lookup,
.link = zpl_link,
.unlink = zpl_unlink,
.symlink = zpl_symlink,
.mkdir = zpl_mkdir,
.rmdir = zpl_rmdir,
.mknod = zpl_mknod,
#ifdef HAVE_RENAME2
.rename2 = zpl_rename2,
#elif defined(HAVE_RENAME_WANTS_FLAGS) || defined(HAVE_IOPS_RENAME_USERNS)
.rename = zpl_rename2,
#else
.rename = zpl_rename,
#endif
#ifdef HAVE_TMPFILE
.tmpfile = zpl_tmpfile,
#endif
.setattr = zpl_setattr,
.getattr = zpl_getattr,
#ifdef HAVE_GENERIC_SETXATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
.removexattr = generic_removexattr,
#endif
.listxattr = zpl_xattr_list,
#if defined(CONFIG_FS_POSIX_ACL)
#if defined(HAVE_SET_ACL)
.set_acl = zpl_set_acl,
#endif /* HAVE_SET_ACL */
.get_acl = zpl_get_acl,
#endif /* CONFIG_FS_POSIX_ACL */
#ifdef HAVE_RENAME2_OPERATIONS_WRAPPER
},
.rename2 = zpl_rename2,
#endif
};
const struct inode_operations zpl_symlink_inode_operations = {
#ifdef HAVE_GENERIC_READLINK
.readlink = generic_readlink,
#endif
#if defined(HAVE_GET_LINK_DELAYED) || defined(HAVE_GET_LINK_COOKIE)
.get_link = zpl_get_link,
#elif defined(HAVE_FOLLOW_LINK_COOKIE) || defined(HAVE_FOLLOW_LINK_NAMEIDATA)
.follow_link = zpl_follow_link,
#endif
#if defined(HAVE_PUT_LINK_COOKIE) || defined(HAVE_PUT_LINK_NAMEIDATA)
.put_link = zpl_put_link,
#endif
.setattr = zpl_setattr,
.getattr = zpl_getattr,
#ifdef HAVE_GENERIC_SETXATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
.removexattr = generic_removexattr,
#endif
.listxattr = zpl_xattr_list,
};
const struct inode_operations zpl_special_inode_operations = {
.setattr = zpl_setattr,
.getattr = zpl_getattr,
#ifdef HAVE_GENERIC_SETXATTR
.setxattr = generic_setxattr,
.getxattr = generic_getxattr,
.removexattr = generic_removexattr,
#endif
.listxattr = zpl_xattr_list,
#if defined(CONFIG_FS_POSIX_ACL)
#if defined(HAVE_SET_ACL)
.set_acl = zpl_set_acl,
#endif /* HAVE_SET_ACL */
.get_acl = zpl_get_acl,
#endif /* CONFIG_FS_POSIX_ACL */
};
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