blob: 558a16beaacb994749e74cf74acf869f611a1064 [file] [log] [blame]
Randy Dunlap16f7e0f2006-01-11 12:17:46 -08001#include <linux/capability.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07002#include <linux/fs.h>
3#include <linux/posix_acl.h>
Al Virof466c6f2012-03-17 01:16:43 -04004#include "reiserfs.h"
Linus Torvalds1da177e2005-04-16 15:20:36 -07005#include <linux/errno.h>
6#include <linux/pagemap.h>
7#include <linux/xattr.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +09008#include <linux/slab.h>
Christoph Hellwig9a59f452005-06-23 00:10:19 -07009#include <linux/posix_acl_xattr.h>
Al Viroc45ac882012-03-17 00:59:06 -040010#include "xattr.h"
Al Viroa3063ab2012-03-17 01:03:10 -040011#include "acl.h"
Fabian Frederick17093992014-08-08 14:21:12 -070012#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070013
Christoph Hellwig47f70d02013-12-20 05:16:49 -080014static int __reiserfs_set_acl(struct reiserfs_transaction_handle *th,
Jeff Mahoney0ab26212009-03-30 14:02:39 -040015 struct inode *inode, int type,
Linus Torvaldsbd4c6252005-07-12 20:21:28 -070016 struct posix_acl *acl);
Linus Torvalds1da177e2005-04-16 15:20:36 -070017
Christoph Hellwig47f70d02013-12-20 05:16:49 -080018
19int
20reiserfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
Linus Torvalds1da177e2005-04-16 15:20:36 -070021{
Jeff Mahoney0ab26212009-03-30 14:02:39 -040022 int error, error2;
23 struct reiserfs_transaction_handle th;
24 size_t jcreate_blocks;
Christoph Hellwig47f70d02013-12-20 05:16:49 -080025 int size = acl ? posix_acl_xattr_size(acl->a_count) : 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -070026
Linus Torvalds1da177e2005-04-16 15:20:36 -070027
Jeff Mahoney098297b2014-04-23 10:00:36 -040028 /*
29 * Pessimism: We can't assume that anything from the xattr root up
30 * has been created.
31 */
Jeff Mahoney0ab26212009-03-30 14:02:39 -040032
33 jcreate_blocks = reiserfs_xattr_jcreate_nblocks(inode) +
34 reiserfs_xattr_nblocks(inode, size) * 2;
35
36 reiserfs_write_lock(inode->i_sb);
37 error = journal_begin(&th, inode->i_sb, jcreate_blocks);
Jeff Mahoney4c051412013-08-08 17:27:19 -040038 reiserfs_write_unlock(inode->i_sb);
Jeff Mahoney0ab26212009-03-30 14:02:39 -040039 if (error == 0) {
Christoph Hellwig47f70d02013-12-20 05:16:49 -080040 error = __reiserfs_set_acl(&th, inode, type, acl);
Jeff Mahoney4c051412013-08-08 17:27:19 -040041 reiserfs_write_lock(inode->i_sb);
Jeff Mahoney58d85422014-04-23 10:00:38 -040042 error2 = journal_end(&th);
Jeff Mahoney4c051412013-08-08 17:27:19 -040043 reiserfs_write_unlock(inode->i_sb);
Jeff Mahoney0ab26212009-03-30 14:02:39 -040044 if (error2)
45 error = error2;
46 }
Linus Torvalds1da177e2005-04-16 15:20:36 -070047
Linus Torvalds1da177e2005-04-16 15:20:36 -070048 return error;
49}
50
Linus Torvalds1da177e2005-04-16 15:20:36 -070051/*
52 * Convert from filesystem to in-memory representation.
53 */
Christoph Hellwig9dad9432013-12-20 05:16:36 -080054static struct posix_acl *reiserfs_posix_acl_from_disk(const void *value, size_t size)
Linus Torvalds1da177e2005-04-16 15:20:36 -070055{
56 const char *end = (char *)value + size;
57 int n, count;
58 struct posix_acl *acl;
59
60 if (!value)
61 return NULL;
62 if (size < sizeof(reiserfs_acl_header))
Linus Torvaldsbd4c6252005-07-12 20:21:28 -070063 return ERR_PTR(-EINVAL);
64 if (((reiserfs_acl_header *) value)->a_version !=
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 cpu_to_le32(REISERFS_ACL_VERSION))
66 return ERR_PTR(-EINVAL);
67 value = (char *)value + sizeof(reiserfs_acl_header);
68 count = reiserfs_acl_count(size);
69 if (count < 0)
70 return ERR_PTR(-EINVAL);
71 if (count == 0)
72 return NULL;
73 acl = posix_acl_alloc(count, GFP_NOFS);
74 if (!acl)
75 return ERR_PTR(-ENOMEM);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -070076 for (n = 0; n < count; n++) {
77 reiserfs_acl_entry *entry = (reiserfs_acl_entry *) value;
Linus Torvalds1da177e2005-04-16 15:20:36 -070078 if ((char *)value + sizeof(reiserfs_acl_entry_short) > end)
79 goto fail;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -070080 acl->a_entries[n].e_tag = le16_to_cpu(entry->e_tag);
Linus Torvalds1da177e2005-04-16 15:20:36 -070081 acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -070082 switch (acl->a_entries[n].e_tag) {
83 case ACL_USER_OBJ:
84 case ACL_GROUP_OBJ:
85 case ACL_MASK:
86 case ACL_OTHER:
87 value = (char *)value +
88 sizeof(reiserfs_acl_entry_short);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -070089 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -070090
Linus Torvaldsbd4c6252005-07-12 20:21:28 -070091 case ACL_USER:
Eric W. Biedermandf814652012-02-07 16:30:06 -080092 value = (char *)value + sizeof(reiserfs_acl_entry);
93 if ((char *)value > end)
94 goto fail;
95 acl->a_entries[n].e_uid =
96 make_kuid(&init_user_ns,
97 le32_to_cpu(entry->e_id));
98 break;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -070099 case ACL_GROUP:
100 value = (char *)value + sizeof(reiserfs_acl_entry);
101 if ((char *)value > end)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102 goto fail;
Eric W. Biedermandf814652012-02-07 16:30:06 -0800103 acl->a_entries[n].e_gid =
104 make_kgid(&init_user_ns,
105 le32_to_cpu(entry->e_id));
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700106 break;
107
108 default:
109 goto fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110 }
111 }
112 if (value != end)
113 goto fail;
114 return acl;
115
Jeff Mahoneycf776a72014-04-23 10:00:41 -0400116fail:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 posix_acl_release(acl);
118 return ERR_PTR(-EINVAL);
119}
120
121/*
122 * Convert from in-memory to filesystem representation.
123 */
Christoph Hellwig9dad9432013-12-20 05:16:36 -0800124static void *reiserfs_posix_acl_to_disk(const struct posix_acl *acl, size_t * size)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125{
126 reiserfs_acl_header *ext_acl;
127 char *e;
128 int n;
129
130 *size = reiserfs_acl_size(acl->a_count);
Robert P. J. Day5cbded52006-12-13 00:35:56 -0800131 ext_acl = kmalloc(sizeof(reiserfs_acl_header) +
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700132 acl->a_count *
133 sizeof(reiserfs_acl_entry),
134 GFP_NOFS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135 if (!ext_acl)
136 return ERR_PTR(-ENOMEM);
137 ext_acl->a_version = cpu_to_le32(REISERFS_ACL_VERSION);
138 e = (char *)ext_acl + sizeof(reiserfs_acl_header);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700139 for (n = 0; n < acl->a_count; n++) {
Eric W. Biedermandf814652012-02-07 16:30:06 -0800140 const struct posix_acl_entry *acl_e = &acl->a_entries[n];
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700141 reiserfs_acl_entry *entry = (reiserfs_acl_entry *) e;
142 entry->e_tag = cpu_to_le16(acl->a_entries[n].e_tag);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700143 entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700144 switch (acl->a_entries[n].e_tag) {
145 case ACL_USER:
Eric W. Biedermandf814652012-02-07 16:30:06 -0800146 entry->e_id = cpu_to_le32(
147 from_kuid(&init_user_ns, acl_e->e_uid));
148 e += sizeof(reiserfs_acl_entry);
149 break;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700150 case ACL_GROUP:
Eric W. Biedermandf814652012-02-07 16:30:06 -0800151 entry->e_id = cpu_to_le32(
152 from_kgid(&init_user_ns, acl_e->e_gid));
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700153 e += sizeof(reiserfs_acl_entry);
154 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700156 case ACL_USER_OBJ:
157 case ACL_GROUP_OBJ:
158 case ACL_MASK:
159 case ACL_OTHER:
160 e += sizeof(reiserfs_acl_entry_short);
161 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700163 default:
164 goto fail;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 }
166 }
167 return (char *)ext_acl;
168
Jeff Mahoneycf776a72014-04-23 10:00:41 -0400169fail:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170 kfree(ext_acl);
171 return ERR_PTR(-EINVAL);
172}
173
174/*
175 * Inode operation get_posix_acl().
176 *
Jes Sorensen1b1dcc12006-01-09 15:59:24 -0800177 * inode->i_mutex: down
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178 * BKL held [before 2.5.x]
179 */
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700180struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181{
182 char *name, *value;
Al Viro073aaa12009-06-09 12:11:54 -0400183 struct posix_acl *acl;
Adrian Bunk3cdc4092006-03-25 03:07:50 -0800184 int size;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 int retval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700187 switch (type) {
188 case ACL_TYPE_ACCESS:
Andreas Gruenbacher97d79292015-12-02 14:44:35 +0100189 name = XATTR_NAME_POSIX_ACL_ACCESS;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700190 break;
191 case ACL_TYPE_DEFAULT:
Andreas Gruenbacher97d79292015-12-02 14:44:35 +0100192 name = XATTR_NAME_POSIX_ACL_DEFAULT;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700193 break;
194 default:
Al Viro073aaa12009-06-09 12:11:54 -0400195 BUG();
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700196 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700198 size = reiserfs_xattr_get(inode, name, NULL, 0);
Adrian Bunk3cdc4092006-03-25 03:07:50 -0800199 if (size < 0) {
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700200 if (size == -ENODATA || size == -ENOSYS) {
Al Viro073aaa12009-06-09 12:11:54 -0400201 set_cached_acl(inode, type, NULL);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700202 return NULL;
203 }
204 return ERR_PTR(size);
205 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700207 value = kmalloc(size, GFP_NOFS);
208 if (!value)
209 return ERR_PTR(-ENOMEM);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210
211 retval = reiserfs_xattr_get(inode, name, value, size);
212 if (retval == -ENODATA || retval == -ENOSYS) {
Jeff Mahoney098297b2014-04-23 10:00:36 -0400213 /*
214 * This shouldn't actually happen as it should have
215 * been caught above.. but just in case
216 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 acl = NULL;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700218 } else if (retval < 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 acl = ERR_PTR(retval);
220 } else {
Christoph Hellwig9dad9432013-12-20 05:16:36 -0800221 acl = reiserfs_posix_acl_from_disk(value, retval);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700222 }
Al Viro073aaa12009-06-09 12:11:54 -0400223 if (!IS_ERR(acl))
224 set_cached_acl(inode, type, acl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225
226 kfree(value);
227 return acl;
228}
229
230/*
231 * Inode operation set_posix_acl().
232 *
Jes Sorensen1b1dcc12006-01-09 15:59:24 -0800233 * inode->i_mutex: down
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234 * BKL held [before 2.5.x]
235 */
236static int
Christoph Hellwig47f70d02013-12-20 05:16:49 -0800237__reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
Jeff Mahoney0ab26212009-03-30 14:02:39 -0400238 int type, struct posix_acl *acl)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700239{
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700240 char *name;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241 void *value = NULL;
Jeff Mahoney48b32a32009-03-30 14:02:38 -0400242 size_t size = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243 int error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700245 switch (type) {
246 case ACL_TYPE_ACCESS:
Andreas Gruenbacher97d79292015-12-02 14:44:35 +0100247 name = XATTR_NAME_POSIX_ACL_ACCESS;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700248 if (acl) {
Al Virod6952122011-07-23 18:56:36 -0400249 error = posix_acl_equiv_mode(acl, &inode->i_mode);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700250 if (error < 0)
251 return error;
252 else {
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700253 if (error == 0)
254 acl = NULL;
255 }
256 }
257 break;
258 case ACL_TYPE_DEFAULT:
Andreas Gruenbacher97d79292015-12-02 14:44:35 +0100259 name = XATTR_NAME_POSIX_ACL_DEFAULT;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700260 if (!S_ISDIR(inode->i_mode))
261 return acl ? -EACCES : 0;
262 break;
263 default:
264 return -EINVAL;
265 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700266
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700267 if (acl) {
Christoph Hellwig9dad9432013-12-20 05:16:36 -0800268 value = reiserfs_posix_acl_to_disk(acl, &size);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700269 if (IS_ERR(value))
270 return (int)PTR_ERR(value);
Jeff Mahoney48b32a32009-03-30 14:02:38 -0400271 }
272
Jeff Mahoney0ab26212009-03-30 14:02:39 -0400273 error = reiserfs_xattr_set_handle(th, inode, name, value, size, 0);
Jeff Mahoney48b32a32009-03-30 14:02:38 -0400274
275 /*
276 * Ensure that the inode gets dirtied if we're only using
277 * the mode bits and an old ACL didn't exist. We don't need
278 * to check if the inode is hashed here since we won't get
279 * called by reiserfs_inherit_default_acl().
280 */
281 if (error == -ENODATA) {
282 error = 0;
283 if (type == ACL_TYPE_ACCESS) {
284 inode->i_ctime = CURRENT_TIME_SEC;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700285 mark_inode_dirty(inode);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700286 }
287 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288
James Lamanna833d3042005-10-30 15:00:16 -0800289 kfree(value);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700290
Jeff Mahoneyd9845612009-03-30 14:02:35 -0400291 if (!error)
Al Viro073aaa12009-06-09 12:11:54 -0400292 set_cached_acl(inode, type, acl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700293
294 return error;
295}
296
Jeff Mahoney098297b2014-04-23 10:00:36 -0400297/*
298 * dir->i_mutex: locked,
299 * inode is new and not released into the wild yet
300 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301int
Jeff Mahoney0ab26212009-03-30 14:02:39 -0400302reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
303 struct inode *dir, struct dentry *dentry,
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700304 struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305{
Christoph Hellwig47f70d02013-12-20 05:16:49 -0800306 struct posix_acl *default_acl, *acl;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700307 int err = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700309 /* ACLs only get applied to files and directories */
310 if (S_ISLNK(inode->i_mode))
311 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312
Jeff Mahoney098297b2014-04-23 10:00:36 -0400313 /*
314 * ACLs can only be used on "new" objects, so if it's an old object
315 * there is nothing to inherit from
316 */
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700317 if (get_inode_sd_version(dir) == STAT_DATA_V1)
318 goto apply_umask;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319
Jeff Mahoney098297b2014-04-23 10:00:36 -0400320 /*
321 * Don't apply ACLs to objects in the .reiserfs_priv tree.. This
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700322 * would be useless since permissions are ignored, and a pain because
Jeff Mahoney098297b2014-04-23 10:00:36 -0400323 * it introduces locking cycles
324 */
Jeff Mahoney6dfede692009-03-30 14:02:32 -0400325 if (IS_PRIVATE(dir)) {
326 inode->i_flags |= S_PRIVATE;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700327 goto apply_umask;
328 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329
Christoph Hellwig47f70d02013-12-20 05:16:49 -0800330 err = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
331 if (err)
332 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333
Christoph Hellwig47f70d02013-12-20 05:16:49 -0800334 if (default_acl) {
335 err = __reiserfs_set_acl(th, inode, ACL_TYPE_DEFAULT,
336 default_acl);
337 posix_acl_release(default_acl);
338 }
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700339 if (acl) {
Christoph Hellwig47f70d02013-12-20 05:16:49 -0800340 if (!err)
341 err = __reiserfs_set_acl(th, inode, ACL_TYPE_ACCESS,
342 acl);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700343 posix_acl_release(acl);
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700344 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700345
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700346 return err;
Christoph Hellwig47f70d02013-12-20 05:16:49 -0800347
Jeff Mahoneycf776a72014-04-23 10:00:41 -0400348apply_umask:
Christoph Hellwig47f70d02013-12-20 05:16:49 -0800349 /* no ACL, apply umask */
350 inode->i_mode &= ~current_umask();
351 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352}
353
Jeff Mahoney0ab26212009-03-30 14:02:39 -0400354/* This is used to cache the default acl before a new object is created.
355 * The biggest reason for this is to get an idea of how many blocks will
356 * actually be required for the create operation if we must inherit an ACL.
357 * An ACL write can add up to 3 object creations and an additional file write
358 * so we'd prefer not to reserve that many blocks in the journal if we can.
359 * It also has the advantage of not loading the ACL with a transaction open,
360 * this may seem silly, but if the owner of the directory is doing the
361 * creation, the ACL may not be loaded since the permissions wouldn't require
362 * it.
363 * We return the number of blocks required for the transaction.
364 */
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700365int reiserfs_cache_default_acl(struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700366{
Jeff Mahoney0ab26212009-03-30 14:02:39 -0400367 struct posix_acl *acl;
368 int nblocks = 0;
369
370 if (IS_PRIVATE(inode))
371 return 0;
372
373 acl = reiserfs_get_acl(inode, ACL_TYPE_DEFAULT);
374
375 if (acl && !IS_ERR(acl)) {
376 int size = reiserfs_acl_size(acl->a_count);
377
378 /* Other xattrs can be created during inode creation. We don't
379 * want to claim too many blocks, so we check to see if we
380 * we need to create the tree to the xattrs, and then we
381 * just want two files. */
382 nblocks = reiserfs_xattr_jcreate_nblocks(inode);
383 nblocks += JOURNAL_BLOCKS_PER_OBJECT(inode->i_sb);
384
385 REISERFS_I(inode)->i_flags |= i_has_xattr_dir;
386
387 /* We need to account for writes + bitmaps for two files */
388 nblocks += reiserfs_xattr_nblocks(inode, size) * 4;
389 posix_acl_release(acl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390 }
391
Jeff Mahoney0ab26212009-03-30 14:02:39 -0400392 return nblocks;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700393}
394
Jeff Mahoney4c051412013-08-08 17:27:19 -0400395/*
396 * Called under i_mutex
397 */
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700398int reiserfs_acl_chmod(struct inode *inode)
399{
Jeff Mahoney4a857012013-05-31 15:54:17 -0400400 if (IS_PRIVATE(inode))
401 return 0;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700402 if (get_inode_sd_version(inode) == STAT_DATA_V1 ||
Christoph Hellwig47f70d02013-12-20 05:16:49 -0800403 !reiserfs_posixacl(inode->i_sb))
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700404 return 0;
Linus Torvaldsbd4c6252005-07-12 20:21:28 -0700405
Christoph Hellwig47f70d02013-12-20 05:16:49 -0800406 return posix_acl_chmod(inode, inode->i_mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700407}