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)
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,
64 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
66 vap->va_mask = ATTR_MODE;
67 vap->va_uid = crgetfsuid(cr);
68 vap->va_gid = crgetfsgid(cr);
69 vap->va_dentry = dentry;
71 error = -zfs_create(dir, (char *)dentry->d_name.name,
72 vap, 0, mode, &ip, cr, 0, NULL);
73 kmem_free(vap, sizeof(vattr_t));
75 ASSERT3S(error, <=, 0);
81 zpl_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
89 * We currently expect Linux to supply rdev=0 for all sockets
90 * and fifos, but we want to know if this behavior ever changes.
92 if (S_ISSOCK(mode) || S_ISFIFO(mode))
96 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
98 vap->va_mask = ATTR_MODE;
100 vap->va_uid = crgetfsuid(cr);
101 vap->va_gid = crgetfsgid(cr);
102 vap->va_dentry = dentry;
104 error = -zfs_create(dir, (char *)dentry->d_name.name,
105 vap, 0, mode, &ip, cr, 0, NULL);
106 kmem_free(vap, sizeof(vattr_t));
108 ASSERT3S(error, <=, 0);
114 zpl_unlink(struct inode *dir, struct dentry *dentry)
120 error = -zfs_remove(dir, dname(dentry), cr);
122 ASSERT3S(error, <=, 0);
128 zpl_mkdir(struct inode *dir, struct dentry *dentry, int mode)
136 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
137 vap->va_mode = S_IFDIR | mode;
138 vap->va_mask = ATTR_MODE;
139 vap->va_uid = crgetfsuid(cr);
140 vap->va_gid = crgetfsgid(cr);
141 vap->va_dentry = dentry;
143 error = -zfs_mkdir(dir, dname(dentry), vap, &ip, cr, 0, NULL);
144 kmem_free(vap, sizeof(vattr_t));
146 ASSERT3S(error, <=, 0);
152 zpl_rmdir(struct inode * dir, struct dentry *dentry)
158 error = -zfs_rmdir(dir, dname(dentry), NULL, cr, 0);
160 ASSERT3S(error, <=, 0);
166 zpl_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
173 ip = dentry->d_inode;
175 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
177 error = -zfs_getattr(ip, vap, 0, cr);
181 stat->ino = ip->i_ino;
182 stat->dev = ip->i_sb->s_dev;
183 stat->mode = vap->va_mode;
184 stat->nlink = vap->va_nlink;
185 stat->uid = vap->va_uid;
186 stat->gid = vap->va_gid;
187 stat->rdev = vap->va_rdev;
188 stat->size = vap->va_size;
189 stat->atime = vap->va_atime;
190 stat->mtime = vap->va_mtime;
191 stat->ctime = vap->va_ctime;
192 stat->blksize = vap->va_blksize;
193 stat->blocks = vap->va_nblocks;
195 kmem_free(vap, sizeof(vattr_t));
197 ASSERT3S(error, <=, 0);
203 zpl_setattr(struct dentry *dentry, struct iattr *ia)
209 error = inode_change_ok(dentry->d_inode, ia);
214 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
215 vap->va_mask = ia->ia_valid & ATTR_IATTR_MASK;
216 vap->va_mode = ia->ia_mode;
217 vap->va_uid = ia->ia_uid;
218 vap->va_gid = ia->ia_gid;
219 vap->va_size = ia->ia_size;
220 vap->va_atime = ia->ia_atime;
221 vap->va_mtime = ia->ia_mtime;
222 vap->va_ctime = ia->ia_ctime;
224 error = -zfs_setattr(dentry->d_inode, vap, 0, cr);
226 kmem_free(vap, sizeof(vattr_t));
228 ASSERT3S(error, <=, 0);
234 zpl_rename(struct inode *sdip, struct dentry *sdentry,
235 struct inode *tdip, struct dentry *tdentry)
241 error = -zfs_rename(sdip, dname(sdentry), tdip, dname(tdentry), cr, 0);
243 ASSERT3S(error, <=, 0);
249 zpl_symlink(struct inode *dir, struct dentry *dentry, const char *name)
257 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
258 vap->va_mode = S_IFLNK | S_IRWXUGO;
259 vap->va_mask = ATTR_MODE;
260 vap->va_uid = crgetfsuid(cr);
261 vap->va_gid = crgetfsgid(cr);
262 vap->va_dentry = dentry;
264 error = -zfs_symlink(dir, dname(dentry), vap, (char *)name, &ip, cr, 0);
265 kmem_free(vap, sizeof(vattr_t));
267 ASSERT3S(error, <=, 0);
273 zpl_follow_link(struct dentry *dentry, struct nameidata *nd)
276 struct inode *ip = dentry->d_inode;
284 iov.iov_len = MAXPATHLEN;
285 iov.iov_base = link = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
289 uio.uio_resid = (MAXPATHLEN - 1);
290 uio.uio_segflg = UIO_SYSSPACE;
292 error = -zfs_readlink(ip, &uio, cr);
294 kmem_free(link, MAXPATHLEN);
295 nd_set_link(nd, ERR_PTR(error));
297 nd_set_link(nd, link);
305 zpl_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr)
309 link = nd_get_link(nd);
311 kmem_free(link, MAXPATHLEN);
315 zpl_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
318 struct inode *ip = old_dentry->d_inode;
321 if (ip->i_nlink >= ZFS_LINK_MAX)
325 ip->i_ctime = CURRENT_TIME_SEC;
326 igrab(ip); /* Use ihold() if available */
328 error = -zfs_link(dir, ip, dname(dentry), cr);
334 d_instantiate(dentry, ip);
337 ASSERT3S(error, <=, 0);
342 const struct inode_operations zpl_inode_operations = {
343 .create = zpl_create,
345 .unlink = zpl_unlink,
346 .symlink = zpl_symlink,
350 .rename = zpl_rename,
351 .setattr = zpl_setattr,
352 .getattr = zpl_getattr,
353 .setxattr = generic_setxattr,
354 .getxattr = generic_getxattr,
355 .removexattr = generic_removexattr,
356 .listxattr = zpl_xattr_list,
359 const struct inode_operations zpl_dir_inode_operations = {
360 .create = zpl_create,
361 .lookup = zpl_lookup,
363 .unlink = zpl_unlink,
364 .symlink = zpl_symlink,
368 .rename = zpl_rename,
369 .setattr = zpl_setattr,
370 .getattr = zpl_getattr,
371 .setxattr = generic_setxattr,
372 .getxattr = generic_getxattr,
373 .removexattr = generic_removexattr,
374 .listxattr = zpl_xattr_list,
377 const struct inode_operations zpl_symlink_inode_operations = {
378 .readlink = generic_readlink,
379 .follow_link = zpl_follow_link,
380 .put_link = zpl_put_link,
383 const struct inode_operations zpl_special_inode_operations = {
384 .setattr = zpl_setattr,
385 .getattr = zpl_getattr,
386 .setxattr = generic_setxattr,
387 .getxattr = generic_getxattr,
388 .removexattr = generic_removexattr,
389 .listxattr = zpl_xattr_list,