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 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
91 vap->va_mask = ATTR_MODE;
93 vap->va_uid = crgetfsuid(cr);
94 vap->va_gid = crgetfsgid(cr);
95 vap->va_dentry = dentry;
97 error = -zfs_create(dir, (char *)dentry->d_name.name,
98 vap, 0, mode, &ip, cr, 0, NULL);
99 kmem_free(vap, sizeof(vattr_t));
101 ASSERT3S(error, <=, 0);
107 zpl_unlink(struct inode *dir, struct dentry *dentry)
113 error = -zfs_remove(dir, dname(dentry), cr);
115 ASSERT3S(error, <=, 0);
121 zpl_mkdir(struct inode *dir, struct dentry *dentry, int mode)
129 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
130 vap->va_mode = S_IFDIR | mode;
131 vap->va_mask = ATTR_MODE;
132 vap->va_uid = crgetfsuid(cr);
133 vap->va_gid = crgetfsgid(cr);
134 vap->va_dentry = dentry;
136 error = -zfs_mkdir(dir, dname(dentry), vap, &ip, cr, 0, NULL);
137 kmem_free(vap, sizeof(vattr_t));
139 ASSERT3S(error, <=, 0);
145 zpl_rmdir(struct inode * dir, struct dentry *dentry)
151 error = -zfs_rmdir(dir, dname(dentry), NULL, cr, 0);
153 ASSERT3S(error, <=, 0);
159 zpl_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
166 ip = dentry->d_inode;
168 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
170 error = -zfs_getattr(ip, vap, 0, cr);
174 stat->ino = ip->i_ino;
175 stat->dev = ip->i_sb->s_dev;
176 stat->mode = vap->va_mode;
177 stat->nlink = vap->va_nlink;
178 stat->uid = vap->va_uid;
179 stat->gid = vap->va_gid;
180 stat->rdev = vap->va_rdev;
181 stat->size = vap->va_size;
182 stat->atime = vap->va_atime;
183 stat->mtime = vap->va_mtime;
184 stat->ctime = vap->va_ctime;
185 stat->blksize = vap->va_blksize;
186 stat->blocks = vap->va_nblocks;
188 kmem_free(vap, sizeof(vattr_t));
190 ASSERT3S(error, <=, 0);
196 zpl_setattr(struct dentry *dentry, struct iattr *ia)
202 error = inode_change_ok(dentry->d_inode, ia);
207 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
208 vap->va_mask = ia->ia_valid & ATTR_IATTR_MASK;
209 vap->va_mode = ia->ia_mode;
210 vap->va_uid = ia->ia_uid;
211 vap->va_gid = ia->ia_gid;
212 vap->va_size = ia->ia_size;
213 vap->va_atime = ia->ia_atime;
214 vap->va_mtime = ia->ia_mtime;
215 vap->va_ctime = ia->ia_ctime;
217 error = -zfs_setattr(dentry->d_inode, vap, 0, cr);
219 kmem_free(vap, sizeof(vattr_t));
221 ASSERT3S(error, <=, 0);
227 zpl_rename(struct inode *sdip, struct dentry *sdentry,
228 struct inode *tdip, struct dentry *tdentry)
234 error = -zfs_rename(sdip, dname(sdentry), tdip, dname(tdentry), cr, 0);
236 ASSERT3S(error, <=, 0);
242 zpl_symlink(struct inode *dir, struct dentry *dentry, const char *name)
250 vap = kmem_zalloc(sizeof(vattr_t), KM_SLEEP);
251 vap->va_mode = S_IFLNK | S_IRWXUGO;
252 vap->va_mask = ATTR_MODE;
253 vap->va_uid = crgetfsuid(cr);
254 vap->va_gid = crgetfsgid(cr);
255 vap->va_dentry = dentry;
257 error = -zfs_symlink(dir, dname(dentry), vap, (char *)name, &ip, cr, 0);
258 kmem_free(vap, sizeof(vattr_t));
260 ASSERT3S(error, <=, 0);
266 zpl_follow_link(struct dentry *dentry, struct nameidata *nd)
269 struct inode *ip = dentry->d_inode;
277 iov.iov_len = MAXPATHLEN;
278 iov.iov_base = link = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
282 uio.uio_resid = (MAXPATHLEN - 1);
283 uio.uio_segflg = UIO_SYSSPACE;
285 error = -zfs_readlink(ip, &uio, cr);
287 kmem_free(link, MAXPATHLEN);
288 nd_set_link(nd, ERR_PTR(error));
290 nd_set_link(nd, link);
298 zpl_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr)
302 link = nd_get_link(nd);
304 kmem_free(link, MAXPATHLEN);
308 zpl_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
311 struct inode *ip = old_dentry->d_inode;
314 if (ip->i_nlink >= ZFS_LINK_MAX)
318 ip->i_ctime = CURRENT_TIME_SEC;
319 igrab(ip); /* Use ihold() if available */
321 error = -zfs_link(dir, ip, dname(dentry), cr);
327 d_instantiate(dentry, ip);
330 ASSERT3S(error, <=, 0);
335 const struct inode_operations zpl_inode_operations = {
336 .create = zpl_create,
338 .unlink = zpl_unlink,
339 .symlink = zpl_symlink,
343 .rename = zpl_rename,
344 .setattr = zpl_setattr,
345 .getattr = zpl_getattr,
346 .setxattr = generic_setxattr,
347 .getxattr = generic_getxattr,
348 .removexattr = generic_removexattr,
349 .listxattr = zpl_xattr_list,
352 const struct inode_operations zpl_dir_inode_operations = {
353 .create = zpl_create,
354 .lookup = zpl_lookup,
356 .unlink = zpl_unlink,
357 .symlink = zpl_symlink,
361 .rename = zpl_rename,
362 .setattr = zpl_setattr,
363 .getattr = zpl_getattr,
364 .setxattr = generic_setxattr,
365 .getxattr = generic_getxattr,
366 .removexattr = generic_removexattr,
367 .listxattr = zpl_xattr_list,
370 const struct inode_operations zpl_symlink_inode_operations = {
371 .readlink = generic_readlink,
372 .follow_link = zpl_follow_link,
373 .put_link = zpl_put_link,
376 const struct inode_operations zpl_special_inode_operations = {
377 .setattr = zpl_setattr,
378 .getattr = zpl_getattr,
379 .setxattr = generic_setxattr,
380 .getxattr = generic_getxattr,
381 .removexattr = generic_removexattr,
382 .listxattr = zpl_xattr_list,