ace1eae84c
Linux 3.11 add O_TMPFILE to open(2), which allow creating an unlinked file on supported filesystem. It's basically doing open(2) and unlink(2) atomically. The filesystem support is added through i_op->tmpfile. We basically copy the create operation except we get rid of the link and name related stuff and add the new node to unlinked set. We also add support for linkat(2) to link tmpfile. However, since all previous file operation will skip ZIL, we force a txg_wait_synced to make sure we are sync safe. Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
808 lines
18 KiB
C
808 lines
18 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (c) 2011, Lawrence Livermore National Security, LLC.
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* Copyright (c) 2015 by Chunwei Chen. All rights reserved.
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*/
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#include <sys/zfs_ctldir.h>
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#include <sys/zfs_vfsops.h>
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#include <sys/zfs_vnops.h>
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#include <sys/zfs_znode.h>
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#include <sys/dmu_objset.h>
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#include <sys/vfs.h>
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#include <sys/zpl.h>
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#include <sys/file.h>
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static struct dentry *
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#ifdef HAVE_LOOKUP_NAMEIDATA
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zpl_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
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#else
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zpl_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
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#endif
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{
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cred_t *cr = CRED();
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struct inode *ip;
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int error;
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fstrans_cookie_t cookie;
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pathname_t *ppn = NULL;
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pathname_t pn;
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int zfs_flags = 0;
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zfs_sb_t *zsb = dentry->d_sb->s_fs_info;
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if (dlen(dentry) > ZFS_MAX_DATASET_NAME_LEN)
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return (ERR_PTR(-ENAMETOOLONG));
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crhold(cr);
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cookie = spl_fstrans_mark();
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/* If we are a case insensitive fs, we need the real name */
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if (zsb->z_case == ZFS_CASE_INSENSITIVE) {
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zfs_flags = FIGNORECASE;
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pn_alloc(&pn);
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ppn = &pn;
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}
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error = -zfs_lookup(dir, dname(dentry), &ip, zfs_flags, cr, NULL, ppn);
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spl_fstrans_unmark(cookie);
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ASSERT3S(error, <=, 0);
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crfree(cr);
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spin_lock(&dentry->d_lock);
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dentry->d_time = jiffies;
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#ifndef HAVE_S_D_OP
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d_set_d_op(dentry, &zpl_dentry_operations);
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#endif /* HAVE_S_D_OP */
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spin_unlock(&dentry->d_lock);
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if (error) {
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/*
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* If we have a case sensitive fs, we do not want to
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* insert negative entries, so return NULL for ENOENT.
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* Fall through if the error is not ENOENT. Also free memory.
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*/
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if (ppn) {
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pn_free(ppn);
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if (error == -ENOENT)
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return (NULL);
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}
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if (error == -ENOENT)
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return (d_splice_alias(NULL, dentry));
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else
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return (ERR_PTR(error));
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}
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/*
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* If we are case insensitive, call the correct function
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* to install the name.
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*/
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if (ppn) {
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struct dentry *new_dentry;
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struct qstr ci_name;
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if (strcmp(dname(dentry), pn.pn_buf) == 0) {
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new_dentry = d_splice_alias(ip, dentry);
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} else {
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ci_name.name = pn.pn_buf;
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ci_name.len = strlen(pn.pn_buf);
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new_dentry = d_add_ci(dentry, ip, &ci_name);
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}
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pn_free(ppn);
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return (new_dentry);
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} else {
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return (d_splice_alias(ip, dentry));
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}
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}
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void
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zpl_vap_init(vattr_t *vap, struct inode *dir, zpl_umode_t mode, cred_t *cr)
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{
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vap->va_mask = ATTR_MODE;
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vap->va_mode = mode;
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vap->va_uid = crgetfsuid(cr);
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if (dir && dir->i_mode & S_ISGID) {
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vap->va_gid = KGID_TO_SGID(dir->i_gid);
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if (S_ISDIR(mode))
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vap->va_mode |= S_ISGID;
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} else {
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vap->va_gid = crgetfsgid(cr);
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}
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}
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static int
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#ifdef HAVE_CREATE_NAMEIDATA
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zpl_create(struct inode *dir, struct dentry *dentry, zpl_umode_t mode,
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struct nameidata *nd)
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#else
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zpl_create(struct inode *dir, struct dentry *dentry, zpl_umode_t mode,
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bool flag)
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#endif
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{
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cred_t *cr = CRED();
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struct inode *ip;
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vattr_t *vap;
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int error;
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fstrans_cookie_t cookie;
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crhold(cr);
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vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
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zpl_vap_init(vap, dir, mode, cr);
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cookie = spl_fstrans_mark();
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error = -zfs_create(dir, dname(dentry), vap, 0, mode, &ip, cr, 0, NULL);
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if (error == 0) {
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d_instantiate(dentry, ip);
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error = zpl_xattr_security_init(ip, dir, &dentry->d_name);
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if (error == 0)
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error = zpl_init_acl(ip, dir);
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if (error)
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(void) zfs_remove(dir, dname(dentry), cr, 0);
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}
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spl_fstrans_unmark(cookie);
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kmem_free(vap, sizeof (vattr_t));
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crfree(cr);
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ASSERT3S(error, <=, 0);
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return (error);
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}
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static int
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zpl_mknod(struct inode *dir, struct dentry *dentry, zpl_umode_t mode,
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dev_t rdev)
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{
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cred_t *cr = CRED();
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struct inode *ip;
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vattr_t *vap;
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int error;
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fstrans_cookie_t cookie;
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/*
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* We currently expect Linux to supply rdev=0 for all sockets
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* and fifos, but we want to know if this behavior ever changes.
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*/
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if (S_ISSOCK(mode) || S_ISFIFO(mode))
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ASSERT(rdev == 0);
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crhold(cr);
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vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
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zpl_vap_init(vap, dir, mode, cr);
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vap->va_rdev = rdev;
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cookie = spl_fstrans_mark();
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error = -zfs_create(dir, dname(dentry), vap, 0, mode, &ip, cr, 0, NULL);
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if (error == 0) {
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d_instantiate(dentry, ip);
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error = zpl_xattr_security_init(ip, dir, &dentry->d_name);
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if (error == 0)
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error = zpl_init_acl(ip, dir);
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if (error)
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(void) zfs_remove(dir, dname(dentry), cr, 0);
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}
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spl_fstrans_unmark(cookie);
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kmem_free(vap, sizeof (vattr_t));
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crfree(cr);
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ASSERT3S(error, <=, 0);
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return (error);
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}
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#ifdef HAVE_TMPFILE
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static int
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zpl_tmpfile(struct inode *dir, struct dentry *dentry, zpl_umode_t mode)
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{
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cred_t *cr = CRED();
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struct inode *ip;
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vattr_t *vap;
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int error;
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fstrans_cookie_t cookie;
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crhold(cr);
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vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
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zpl_vap_init(vap, dir, mode, cr);
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cookie = spl_fstrans_mark();
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error = -zfs_tmpfile(dir, vap, 0, mode, &ip, cr, 0, NULL);
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if (error == 0) {
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/* d_tmpfile will do drop_nlink, so we should set it first */
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set_nlink(ip, 1);
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d_tmpfile(dentry, ip);
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error = zpl_xattr_security_init(ip, dir, &dentry->d_name);
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if (error == 0)
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error = zpl_init_acl(ip, dir);
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/*
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* don't need to handle error here, file is already in
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* unlinked set.
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*/
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}
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spl_fstrans_unmark(cookie);
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kmem_free(vap, sizeof (vattr_t));
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crfree(cr);
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ASSERT3S(error, <=, 0);
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return (error);
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}
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#endif
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static int
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zpl_unlink(struct inode *dir, struct dentry *dentry)
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{
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cred_t *cr = CRED();
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int error;
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fstrans_cookie_t cookie;
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zfs_sb_t *zsb = dentry->d_sb->s_fs_info;
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crhold(cr);
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cookie = spl_fstrans_mark();
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error = -zfs_remove(dir, dname(dentry), cr, 0);
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/*
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* For a CI FS we must invalidate the dentry to prevent the
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* creation of negative entries.
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*/
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if (error == 0 && zsb->z_case == ZFS_CASE_INSENSITIVE)
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d_invalidate(dentry);
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spl_fstrans_unmark(cookie);
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crfree(cr);
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ASSERT3S(error, <=, 0);
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return (error);
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}
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static int
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zpl_mkdir(struct inode *dir, struct dentry *dentry, zpl_umode_t mode)
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{
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cred_t *cr = CRED();
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vattr_t *vap;
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struct inode *ip;
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int error;
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fstrans_cookie_t cookie;
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crhold(cr);
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vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
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zpl_vap_init(vap, dir, mode | S_IFDIR, cr);
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cookie = spl_fstrans_mark();
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error = -zfs_mkdir(dir, dname(dentry), vap, &ip, cr, 0, NULL);
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if (error == 0) {
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d_instantiate(dentry, ip);
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error = zpl_xattr_security_init(ip, dir, &dentry->d_name);
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if (error == 0)
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error = zpl_init_acl(ip, dir);
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if (error)
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(void) zfs_rmdir(dir, dname(dentry), NULL, cr, 0);
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}
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spl_fstrans_unmark(cookie);
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kmem_free(vap, sizeof (vattr_t));
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crfree(cr);
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ASSERT3S(error, <=, 0);
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return (error);
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}
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static int
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zpl_rmdir(struct inode * dir, struct dentry *dentry)
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{
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cred_t *cr = CRED();
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int error;
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fstrans_cookie_t cookie;
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zfs_sb_t *zsb = dentry->d_sb->s_fs_info;
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crhold(cr);
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cookie = spl_fstrans_mark();
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error = -zfs_rmdir(dir, dname(dentry), NULL, cr, 0);
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/*
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* For a CI FS we must invalidate the dentry to prevent the
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* creation of negative entries.
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*/
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if (error == 0 && zsb->z_case == ZFS_CASE_INSENSITIVE)
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d_invalidate(dentry);
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spl_fstrans_unmark(cookie);
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crfree(cr);
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ASSERT3S(error, <=, 0);
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return (error);
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}
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static int
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zpl_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
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{
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int error;
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fstrans_cookie_t cookie;
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cookie = spl_fstrans_mark();
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error = -zfs_getattr_fast(dentry->d_inode, stat);
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spl_fstrans_unmark(cookie);
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ASSERT3S(error, <=, 0);
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return (error);
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}
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static int
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zpl_setattr(struct dentry *dentry, struct iattr *ia)
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{
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struct inode *ip = dentry->d_inode;
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cred_t *cr = CRED();
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vattr_t *vap;
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int error;
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fstrans_cookie_t cookie;
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error = setattr_prepare(dentry, ia);
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if (error)
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return (error);
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crhold(cr);
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vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
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vap->va_mask = ia->ia_valid & ATTR_IATTR_MASK;
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vap->va_mode = ia->ia_mode;
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vap->va_uid = KUID_TO_SUID(ia->ia_uid);
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vap->va_gid = KGID_TO_SGID(ia->ia_gid);
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vap->va_size = ia->ia_size;
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vap->va_atime = ia->ia_atime;
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vap->va_mtime = ia->ia_mtime;
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vap->va_ctime = ia->ia_ctime;
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if (vap->va_mask & ATTR_ATIME)
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ip->i_atime = timespec_trunc(ia->ia_atime,
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ip->i_sb->s_time_gran);
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cookie = spl_fstrans_mark();
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error = -zfs_setattr(ip, vap, 0, cr);
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if (!error && (ia->ia_valid & ATTR_MODE))
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error = zpl_chmod_acl(ip);
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spl_fstrans_unmark(cookie);
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kmem_free(vap, sizeof (vattr_t));
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crfree(cr);
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ASSERT3S(error, <=, 0);
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return (error);
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}
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static int
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zpl_rename2(struct inode *sdip, struct dentry *sdentry,
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struct inode *tdip, struct dentry *tdentry, unsigned int flags)
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{
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cred_t *cr = CRED();
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int error;
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fstrans_cookie_t cookie;
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/* We don't have renameat2(2) support */
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if (flags)
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return (-EINVAL);
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crhold(cr);
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cookie = spl_fstrans_mark();
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error = -zfs_rename(sdip, dname(sdentry), tdip, dname(tdentry), cr, 0);
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spl_fstrans_unmark(cookie);
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crfree(cr);
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ASSERT3S(error, <=, 0);
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return (error);
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}
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#ifndef HAVE_RENAME_WANTS_FLAGS
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static int
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zpl_rename(struct inode *sdip, struct dentry *sdentry,
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struct inode *tdip, struct dentry *tdentry)
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{
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return (zpl_rename2(sdip, sdentry, tdip, tdentry, 0));
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}
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#endif
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static int
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zpl_symlink(struct inode *dir, struct dentry *dentry, const char *name)
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{
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cred_t *cr = CRED();
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vattr_t *vap;
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struct inode *ip;
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int error;
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fstrans_cookie_t cookie;
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crhold(cr);
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vap = kmem_zalloc(sizeof (vattr_t), KM_SLEEP);
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zpl_vap_init(vap, dir, S_IFLNK | S_IRWXUGO, cr);
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cookie = spl_fstrans_mark();
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error = -zfs_symlink(dir, dname(dentry), vap, (char *)name, &ip, cr, 0);
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if (error == 0) {
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d_instantiate(dentry, ip);
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error = zpl_xattr_security_init(ip, dir, &dentry->d_name);
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if (error)
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(void) zfs_remove(dir, dname(dentry), cr, 0);
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}
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spl_fstrans_unmark(cookie);
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kmem_free(vap, sizeof (vattr_t));
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crfree(cr);
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ASSERT3S(error, <=, 0);
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return (error);
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}
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#if defined(HAVE_PUT_LINK_COOKIE)
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static void
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zpl_put_link(struct inode *unused, void *cookie)
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{
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kmem_free(cookie, MAXPATHLEN);
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}
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#elif defined(HAVE_PUT_LINK_NAMEIDATA)
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static void
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zpl_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr)
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{
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const char *link = nd_get_link(nd);
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if (!IS_ERR(link))
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kmem_free(link, MAXPATHLEN);
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}
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#elif defined(HAVE_PUT_LINK_DELAYED)
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static void
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zpl_put_link(void *ptr)
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{
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kmem_free(ptr, MAXPATHLEN);
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}
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#endif
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static int
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zpl_get_link_common(struct dentry *dentry, struct inode *ip, char **link)
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{
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fstrans_cookie_t cookie;
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cred_t *cr = CRED();
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struct iovec iov;
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uio_t uio;
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int error;
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crhold(cr);
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*link = NULL;
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iov.iov_len = MAXPATHLEN;
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iov.iov_base = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
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uio.uio_iov = &iov;
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uio.uio_iovcnt = 1;
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uio.uio_skip = 0;
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uio.uio_resid = (MAXPATHLEN - 1);
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uio.uio_segflg = UIO_SYSSPACE;
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cookie = spl_fstrans_mark();
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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)
|
|
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)
|
|
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)
|
|
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_SEC;
|
|
igrab(ip); /* Use ihold() if available */
|
|
|
|
cookie = spl_fstrans_mark();
|
|
error = -zfs_link(dir, 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);
|
|
}
|
|
|
|
#ifdef HAVE_INODE_TRUNCATE_RANGE
|
|
static void
|
|
zpl_truncate_range(struct inode *ip, loff_t start, loff_t end)
|
|
{
|
|
cred_t *cr = CRED();
|
|
flock64_t bf;
|
|
fstrans_cookie_t cookie;
|
|
|
|
ASSERT3S(start, <=, end);
|
|
|
|
/*
|
|
* zfs_freesp() will interpret (len == 0) as meaning "truncate until
|
|
* the end of the file". We don't want that.
|
|
*/
|
|
if (start == end)
|
|
return;
|
|
|
|
crhold(cr);
|
|
|
|
bf.l_type = F_WRLCK;
|
|
bf.l_whence = 0;
|
|
bf.l_start = start;
|
|
bf.l_len = end - start;
|
|
bf.l_pid = 0;
|
|
cookie = spl_fstrans_mark();
|
|
zfs_space(ip, F_FREESP, &bf, FWRITE, start, cr);
|
|
spl_fstrans_unmark(cookie);
|
|
|
|
crfree(cr);
|
|
}
|
|
#endif /* HAVE_INODE_TRUNCATE_RANGE */
|
|
|
|
#ifdef HAVE_INODE_FALLOCATE
|
|
static long
|
|
zpl_fallocate(struct inode *ip, int mode, loff_t offset, loff_t len)
|
|
{
|
|
return (zpl_fallocate_common(ip, mode, offset, len));
|
|
}
|
|
#endif /* HAVE_INODE_FALLOCATE */
|
|
|
|
static int
|
|
#ifdef HAVE_D_REVALIDATE_NAMEIDATA
|
|
zpl_revalidate(struct dentry *dentry, struct nameidata *nd)
|
|
{
|
|
unsigned int flags = (nd ? nd->flags : 0);
|
|
#else
|
|
zpl_revalidate(struct dentry *dentry, unsigned int flags)
|
|
{
|
|
#endif /* HAVE_D_REVALIDATE_NAMEIDATA */
|
|
zfs_sb_t *zsb = dentry->d_sb->s_fs_info;
|
|
int error;
|
|
|
|
if (flags & LOOKUP_RCU)
|
|
return (-ECHILD);
|
|
|
|
/*
|
|
* Automounted snapshots rely on periodic dentry revalidation
|
|
* to defer snapshots from being automatically unmounted.
|
|
*/
|
|
if (zsb->z_issnap) {
|
|
if (time_after(jiffies, zsb->z_snap_defer_time +
|
|
MAX(zfs_expire_snapshot * HZ / 2, HZ))) {
|
|
zsb->z_snap_defer_time = jiffies;
|
|
zfsctl_snapshot_unmount_delay(zsb->z_os->os_spa,
|
|
dmu_objset_id(zsb->z_os), zfs_expire_snapshot);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* After a rollback negative dentries created before the rollback
|
|
* time must be invalidated. Otherwise they can obscure files which
|
|
* are only present in the rolled back dataset.
|
|
*/
|
|
if (dentry->d_inode == NULL) {
|
|
spin_lock(&dentry->d_lock);
|
|
error = time_before(dentry->d_time, zsb->z_rollback_time);
|
|
spin_unlock(&dentry->d_lock);
|
|
|
|
if (error)
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* The dentry may reference a stale inode if a mounted file system
|
|
* was rolled back to a point in time where the object didn't exist.
|
|
*/
|
|
if (dentry->d_inode && ITOZ(dentry->d_inode)->z_is_stale)
|
|
return (0);
|
|
|
|
return (1);
|
|
}
|
|
|
|
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,
|
|
#ifdef HAVE_INODE_TRUNCATE_RANGE
|
|
.truncate_range = zpl_truncate_range,
|
|
#endif /* HAVE_INODE_TRUNCATE_RANGE */
|
|
#ifdef HAVE_INODE_FALLOCATE
|
|
.fallocate = zpl_fallocate,
|
|
#endif /* HAVE_INODE_FALLOCATE */
|
|
#if defined(CONFIG_FS_POSIX_ACL)
|
|
#if defined(HAVE_GET_ACL)
|
|
.get_acl = zpl_get_acl,
|
|
#elif defined(HAVE_CHECK_ACL)
|
|
.check_acl = zpl_check_acl,
|
|
#elif defined(HAVE_PERMISSION)
|
|
.permission = zpl_permission,
|
|
#endif /* HAVE_GET_ACL | HAVE_CHECK_ACL | HAVE_PERMISSION */
|
|
#endif /* CONFIG_FS_POSIX_ACL */
|
|
};
|
|
|
|
const struct inode_operations zpl_dir_inode_operations = {
|
|
.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_RENAME_WANTS_FLAGS
|
|
.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_GET_ACL)
|
|
.get_acl = zpl_get_acl,
|
|
#elif defined(HAVE_CHECK_ACL)
|
|
.check_acl = zpl_check_acl,
|
|
#elif defined(HAVE_PERMISSION)
|
|
.permission = zpl_permission,
|
|
#endif /* HAVE_GET_ACL | HAVE_CHECK_ACL | HAVE_PERMISSION */
|
|
#endif /* CONFIG_FS_POSIX_ACL */
|
|
};
|
|
|
|
const struct inode_operations zpl_symlink_inode_operations = {
|
|
.readlink = generic_readlink,
|
|
#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_GET_ACL)
|
|
.get_acl = zpl_get_acl,
|
|
#elif defined(HAVE_CHECK_ACL)
|
|
.check_acl = zpl_check_acl,
|
|
#elif defined(HAVE_PERMISSION)
|
|
.permission = zpl_permission,
|
|
#endif /* HAVE_GET_ACL | HAVE_CHECK_ACL | HAVE_PERMISSION */
|
|
#endif /* CONFIG_FS_POSIX_ACL */
|
|
};
|
|
|
|
dentry_operations_t zpl_dentry_operations = {
|
|
.d_revalidate = zpl_revalidate,
|
|
};
|