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>
32 static struct dentry *
33 zpl_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
39 cr = (cred_t *)get_current_cred();
40 error = -zfs_lookup(dir, dname(dentry), &ip, 0, cr, NULL, NULL);
41 ASSERT3S(error, <=, 0);
46 return d_splice_alias(NULL, dentry);
48 return ERR_PTR(error);
51 return d_splice_alias(ip, dentry);
55 zpl_create(struct inode *dir, struct dentry *dentry, int mode,
58 const struct cred *cred;
63 cred = get_current_cred();
64 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
66 vap->va_mask = ATTR_MODE;
67 vap->va_uid = current_fsuid();
68 vap->va_gid = current_fsgid();
70 error = -zfs_create(dir, (char *)dentry->d_name.name,
71 vap, 0, mode, &ip, (struct cred *)cred, 0, NULL);
75 d_instantiate(dentry, ip);
77 kmem_free(vap, sizeof(vattr_t));
79 ASSERT3S(error, <=, 0);
85 zpl_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
87 const struct cred *cred;
92 cred = get_current_cred();
93 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
95 vap->va_mask = ATTR_MODE;
97 vap->va_uid = current_fsuid();
98 vap->va_gid = current_fsgid();
100 error = -zfs_create(dir, (char *)dentry->d_name.name,
101 vap, 0, mode, &ip, (struct cred *)cred, 0, NULL);
105 d_instantiate(dentry, ip);
107 kmem_free(vap, sizeof(vattr_t));
109 ASSERT3S(error, <=, 0);
115 zpl_unlink(struct inode *dir, struct dentry *dentry)
120 cr = (cred_t *)get_current_cred();
121 error = -zfs_remove(dir, dname(dentry), cr);
123 ASSERT3S(error, <=, 0);
129 zpl_mkdir(struct inode *dir, struct dentry *dentry, int mode)
136 cr = (cred_t *)get_current_cred();
137 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
138 vap->va_mode = S_IFDIR | mode;
139 vap->va_mask = ATTR_MODE;
140 vap->va_uid = current_fsuid();
141 vap->va_gid = current_fsgid();
143 error = -zfs_mkdir(dir, dname(dentry), vap, &ip, cr, 0, NULL);
147 d_instantiate(dentry, ip);
149 kmem_free(vap, sizeof(vattr_t));
151 ASSERT3S(error, <=, 0);
157 zpl_rmdir(struct inode * dir, struct dentry *dentry)
162 cr = (cred_t *)get_current_cred();
163 error = -zfs_rmdir(dir, dname(dentry), NULL, cr, 0);
165 ASSERT3S(error, <=, 0);
171 zpl_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
176 cr = (cred_t *)get_current_cred();
177 error = -zfs_getattr(dentry->d_inode, stat, 0, cr);
179 ASSERT3S(error, <=, 0);
185 zpl_setattr(struct dentry *dentry, struct iattr *attr)
190 error = inode_change_ok(dentry->d_inode, attr);
194 cr = (cred_t *)get_current_cred();
195 error = -zfs_setattr(dentry->d_inode, attr, 0, cr);
197 ASSERT3S(error, <=, 0);
203 zpl_rename(struct inode *sdip, struct dentry *sdentry,
204 struct inode *tdip, struct dentry *tdentry)
209 cr = (cred_t *)get_current_cred();
210 error = -zfs_rename(sdip, dname(sdentry), tdip, dname(tdentry), cr, 0);
212 ASSERT3S(error, <=, 0);
218 zpl_symlink(struct inode *dir, struct dentry *dentry, const char *name)
225 cr = (cred_t *)get_current_cred();
226 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
227 vap->va_mode = S_IFLNK | S_IRWXUGO;
228 vap->va_mask = ATTR_MODE;
229 vap->va_uid = current_fsuid();
230 vap->va_gid = current_fsgid();
232 error = -zfs_symlink(dir, dname(dentry), vap, (char *)name, &ip, cr, 0);
236 d_instantiate(dentry, ip);
238 kmem_free(vap, sizeof(vattr_t));
240 ASSERT3S(error, <=, 0);
246 zpl_follow_link(struct dentry *dentry, struct nameidata *nd)
248 struct inode *ip = dentry->d_inode;
255 cr = (cred_t *)get_current_cred();
257 iov.iov_len = MAXPATHLEN;
258 iov.iov_base = link = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
262 uio.uio_resid = (MAXPATHLEN - 1);
263 uio.uio_segflg = UIO_SYSSPACE;
265 error = zfs_readlink(ip, &uio, cr);
267 kmem_free(link, MAXPATHLEN);
268 nd_set_link(nd, ERR_PTR(error));
270 nd_set_link(nd, link);
278 zpl_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr)
282 link = nd_get_link(nd);
284 kmem_free(link, MAXPATHLEN);
288 zpl_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
290 struct inode *ip = old_dentry->d_inode;
294 if (ip->i_nlink >= ZFS_LINK_MAX)
297 cr = (cred_t *)get_current_cred();
298 ip->i_ctime = CURRENT_TIME_SEC;
299 igrab(ip); /* Use ihold() if available */
301 error = -zfs_link(dir, ip, dname(dentry), cr);
307 d_instantiate(dentry, ip);
310 ASSERT3S(error, <=, 0);
315 const struct inode_operations zpl_inode_operations = {
316 .create = zpl_create,
318 .unlink = zpl_unlink,
319 .symlink = zpl_symlink,
323 .rename = zpl_rename,
324 .setattr = zpl_setattr,
325 .getattr = zpl_getattr,
326 .setxattr = generic_setxattr,
327 .getxattr = generic_getxattr,
328 .removexattr = generic_removexattr,
329 .listxattr = zpl_xattr_list,
332 const struct inode_operations zpl_dir_inode_operations = {
333 .create = zpl_create,
334 .lookup = zpl_lookup,
336 .unlink = zpl_unlink,
337 .symlink = zpl_symlink,
341 .rename = zpl_rename,
342 .setattr = zpl_setattr,
343 .getattr = zpl_getattr,
344 .setxattr = generic_setxattr,
345 .getxattr = generic_getxattr,
346 .removexattr = generic_removexattr,
347 .listxattr = zpl_xattr_list,
350 const struct inode_operations zpl_symlink_inode_operations = {
351 .readlink = generic_readlink,
352 .follow_link = zpl_follow_link,
353 .put_link = zpl_put_link,
356 const struct inode_operations zpl_special_inode_operations = {
357 .setattr = zpl_setattr,
358 .getattr = zpl_getattr,
359 .setxattr = generic_setxattr,
360 .getxattr = generic_getxattr,
361 .removexattr = generic_removexattr,
362 .listxattr = zpl_xattr_list,