4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
22 * Copyright (c) 2011, Lawrence Livermore National Security, LLC.
26 #include <sys/zfs_vfsops.h>
27 #include <sys/zfs_vnops.h>
28 #include <sys/zfs_znode.h>
33 zpl_inode_alloc(struct super_block *sb)
37 VERIFY3S(zfs_inode_alloc(sb, &ip), ==, 0);
44 zpl_inode_destroy(struct inode *ip)
46 ASSERT(atomic_read(&ip->i_count) == 0);
47 zfs_inode_destroy(ip);
51 zpl_inode_delete(struct inode *ip)
53 loff_t oldsize = i_size_read(ip);
56 truncate_pagecache(ip, oldsize, 0);
61 zpl_evict_inode(struct inode *ip)
67 zpl_put_super(struct super_block *sb)
71 error = -zfs_umount(sb);
72 ASSERT3S(error, <=, 0);
76 zpl_statfs(struct dentry *dentry, struct kstatfs *statp)
80 error = -zfs_statvfs(dentry, statp);
81 ASSERT3S(error, <=, 0);
87 zpl_show_options(struct seq_file *seq, struct vfsmount *vfsp)
89 struct super_block *sb = vfsp->mnt_sb;
90 zfs_sb_t *zsb = sb->s_fs_info;
93 * The Linux VFS automatically handles the following flags:
94 * MNT_NOSUID, MNT_NODEV, MNT_NOEXEC, MNT_NOATIME, MNT_READONLY
97 if (zsb->z_flags & ZSB_XATTR_USER)
98 seq_printf(seq, ",%s", "xattr");
104 zpl_fill_super(struct super_block *sb, void *data, int silent)
108 error = -zfs_domount(sb, data, silent);
109 ASSERT3S(error, <=, 0);
115 zpl_get_sb(struct file_system_type *fs_type, int flags,
116 const char *osname, void *data, struct vfsmount *mnt)
118 zpl_mount_data_t zmd = { osname, data, mnt };
120 return get_sb_nodev(fs_type, flags, &zmd, zpl_fill_super, mnt);
124 zpl_kill_sb(struct super_block *sb)
127 zfs_sb_t *zsb = sb->s_fs_info;
129 if (zsb && dmu_objset_is_snapshot(zsb->z_os))
130 zfs_snap_destroy(zsb);
131 #endif /* HAVE_SNAPSHOT */
136 const struct super_operations zpl_super_operations = {
137 .alloc_inode = zpl_inode_alloc,
138 .destroy_inode = zpl_inode_destroy,
139 .delete_inode = zpl_inode_delete,
143 .clear_inode = zpl_evict_inode,
144 .put_super = zpl_put_super,
149 .statfs = zpl_statfs,
151 .show_options = zpl_show_options,
156 const struct export_operations zpl_export_operations = {
157 .fh_to_dentry = NULL,
158 .fh_to_parent = NULL,
163 struct file_system_type zpl_fs_type = {
164 .owner = THIS_MODULE,
166 .get_sb = zpl_get_sb,
167 .kill_sb = zpl_kill_sb,