aboutsummaryrefslogtreecommitdiffstats
path: root/fs/reiserfs/xattr_acl.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/reiserfs/xattr_acl.c')
-rw-r--r--fs/reiserfs/xattr_acl.c58
1 files changed, 11 insertions, 47 deletions
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index c303c426fe2b..35d6e672a279 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -188,29 +188,6 @@ static void *posix_acl_to_disk(const struct posix_acl *acl, size_t * size)
188 return ERR_PTR(-EINVAL); 188 return ERR_PTR(-EINVAL);
189} 189}
190 190
191static inline void iset_acl(struct inode *inode, struct posix_acl **i_acl,
192 struct posix_acl *acl)
193{
194 spin_lock(&inode->i_lock);
195 if (*i_acl != ERR_PTR(-ENODATA))
196 posix_acl_release(*i_acl);
197 *i_acl = posix_acl_dup(acl);
198 spin_unlock(&inode->i_lock);
199}
200
201static inline struct posix_acl *iget_acl(struct inode *inode,
202 struct posix_acl **i_acl)
203{
204 struct posix_acl *acl = ERR_PTR(-ENODATA);
205
206 spin_lock(&inode->i_lock);
207 if (*i_acl != ERR_PTR(-ENODATA))
208 acl = posix_acl_dup(*i_acl);
209 spin_unlock(&inode->i_lock);
210
211 return acl;
212}
213
214/* 191/*
215 * Inode operation get_posix_acl(). 192 * Inode operation get_posix_acl().
216 * 193 *
@@ -220,34 +197,29 @@ static inline struct posix_acl *iget_acl(struct inode *inode,
220struct posix_acl *reiserfs_get_acl(struct inode *inode, int type) 197struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
221{ 198{
222 char *name, *value; 199 char *name, *value;
223 struct posix_acl *acl, **p_acl; 200 struct posix_acl *acl;
224 int size; 201 int size;
225 int retval; 202 int retval;
226 struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode); 203
204 acl = get_cached_acl(inode, type);
205 if (acl != ACL_NOT_CACHED)
206 return acl;
227 207
228 switch (type) { 208 switch (type) {
229 case ACL_TYPE_ACCESS: 209 case ACL_TYPE_ACCESS:
230 name = POSIX_ACL_XATTR_ACCESS; 210 name = POSIX_ACL_XATTR_ACCESS;
231 p_acl = &reiserfs_i->i_acl_access;
232 break; 211 break;
233 case ACL_TYPE_DEFAULT: 212 case ACL_TYPE_DEFAULT:
234 name = POSIX_ACL_XATTR_DEFAULT; 213 name = POSIX_ACL_XATTR_DEFAULT;
235 p_acl = &reiserfs_i->i_acl_default;
236 break; 214 break;
237 default: 215 default:
238 return ERR_PTR(-EINVAL); 216 BUG();
239 } 217 }
240 218
241 acl = iget_acl(inode, p_acl);
242 if (acl && !IS_ERR(acl))
243 return acl;
244 else if (PTR_ERR(acl) == -ENODATA)
245 return NULL;
246
247 size = reiserfs_xattr_get(inode, name, NULL, 0); 219 size = reiserfs_xattr_get(inode, name, NULL, 0);
248 if (size < 0) { 220 if (size < 0) {
249 if (size == -ENODATA || size == -ENOSYS) { 221 if (size == -ENODATA || size == -ENOSYS) {
250 *p_acl = ERR_PTR(-ENODATA); 222 set_cached_acl(inode, type, NULL);
251 return NULL; 223 return NULL;
252 } 224 }
253 return ERR_PTR(size); 225 return ERR_PTR(size);
@@ -262,14 +234,13 @@ struct posix_acl *reiserfs_get_acl(struct inode *inode, int type)
262 /* This shouldn't actually happen as it should have 234 /* This shouldn't actually happen as it should have
263 been caught above.. but just in case */ 235 been caught above.. but just in case */
264 acl = NULL; 236 acl = NULL;
265 *p_acl = ERR_PTR(-ENODATA);
266 } else if (retval < 0) { 237 } else if (retval < 0) {
267 acl = ERR_PTR(retval); 238 acl = ERR_PTR(retval);
268 } else { 239 } else {
269 acl = posix_acl_from_disk(value, retval); 240 acl = posix_acl_from_disk(value, retval);
270 if (!IS_ERR(acl))
271 iset_acl(inode, p_acl, acl);
272 } 241 }
242 if (!IS_ERR(acl))
243 set_cached_acl(inode, type, acl);
273 244
274 kfree(value); 245 kfree(value);
275 return acl; 246 return acl;
@@ -287,10 +258,8 @@ reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
287{ 258{
288 char *name; 259 char *name;
289 void *value = NULL; 260 void *value = NULL;
290 struct posix_acl **p_acl;
291 size_t size = 0; 261 size_t size = 0;
292 int error; 262 int error;
293 struct reiserfs_inode_info *reiserfs_i = REISERFS_I(inode);
294 263
295 if (S_ISLNK(inode->i_mode)) 264 if (S_ISLNK(inode->i_mode))
296 return -EOPNOTSUPP; 265 return -EOPNOTSUPP;
@@ -298,7 +267,6 @@ reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
298 switch (type) { 267 switch (type) {
299 case ACL_TYPE_ACCESS: 268 case ACL_TYPE_ACCESS:
300 name = POSIX_ACL_XATTR_ACCESS; 269 name = POSIX_ACL_XATTR_ACCESS;
301 p_acl = &reiserfs_i->i_acl_access;
302 if (acl) { 270 if (acl) {
303 mode_t mode = inode->i_mode; 271 mode_t mode = inode->i_mode;
304 error = posix_acl_equiv_mode(acl, &mode); 272 error = posix_acl_equiv_mode(acl, &mode);
@@ -313,7 +281,6 @@ reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
313 break; 281 break;
314 case ACL_TYPE_DEFAULT: 282 case ACL_TYPE_DEFAULT:
315 name = POSIX_ACL_XATTR_DEFAULT; 283 name = POSIX_ACL_XATTR_DEFAULT;
316 p_acl = &reiserfs_i->i_acl_default;
317 if (!S_ISDIR(inode->i_mode)) 284 if (!S_ISDIR(inode->i_mode))
318 return acl ? -EACCES : 0; 285 return acl ? -EACCES : 0;
319 break; 286 break;
@@ -346,7 +313,7 @@ reiserfs_set_acl(struct reiserfs_transaction_handle *th, struct inode *inode,
346 kfree(value); 313 kfree(value);
347 314
348 if (!error) 315 if (!error)
349 iset_acl(inode, p_acl, acl); 316 set_cached_acl(inode, type, acl);
350 317
351 return error; 318 return error;
352} 319}
@@ -379,11 +346,8 @@ reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
379 } 346 }
380 347
381 acl = reiserfs_get_acl(dir, ACL_TYPE_DEFAULT); 348 acl = reiserfs_get_acl(dir, ACL_TYPE_DEFAULT);
382 if (IS_ERR(acl)) { 349 if (IS_ERR(acl))
383 if (PTR_ERR(acl) == -ENODATA)
384 goto apply_umask;
385 return PTR_ERR(acl); 350 return PTR_ERR(acl);
386 }
387 351
388 if (acl) { 352 if (acl) {
389 struct posix_acl *acl_copy; 353 struct posix_acl *acl_copy;