diff options
Diffstat (limited to 'fs/ext3/acl.c')
-rw-r--r-- | fs/ext3/acl.c | 94 |
1 files changed, 29 insertions, 65 deletions
diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c index edfeb293d4cb..6c29bf0df04a 100644 --- a/fs/ext3/acl.c +++ b/fs/ext3/acl.c | |||
@@ -131,7 +131,7 @@ fail: | |||
131 | * | 131 | * |
132 | * inode->i_mutex: don't care | 132 | * inode->i_mutex: don't care |
133 | */ | 133 | */ |
134 | static struct posix_acl * | 134 | struct posix_acl * |
135 | ext3_get_acl(struct inode *inode, int type) | 135 | ext3_get_acl(struct inode *inode, int type) |
136 | { | 136 | { |
137 | int name_index; | 137 | int name_index; |
@@ -239,29 +239,6 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type, | |||
239 | return error; | 239 | return error; |
240 | } | 240 | } |
241 | 241 | ||
242 | int | ||
243 | ext3_check_acl(struct inode *inode, int mask) | ||
244 | { | ||
245 | struct posix_acl *acl; | ||
246 | |||
247 | if (mask & MAY_NOT_BLOCK) { | ||
248 | if (!negative_cached_acl(inode, ACL_TYPE_ACCESS)) | ||
249 | return -ECHILD; | ||
250 | return -EAGAIN; | ||
251 | } | ||
252 | |||
253 | acl = ext3_get_acl(inode, ACL_TYPE_ACCESS); | ||
254 | if (IS_ERR(acl)) | ||
255 | return PTR_ERR(acl); | ||
256 | if (acl) { | ||
257 | int error = posix_acl_permission(inode, acl, mask); | ||
258 | posix_acl_release(acl); | ||
259 | return error; | ||
260 | } | ||
261 | |||
262 | return -EAGAIN; | ||
263 | } | ||
264 | |||
265 | /* | 242 | /* |
266 | * Initialize the ACLs of a new inode. Called from ext3_new_inode. | 243 | * Initialize the ACLs of a new inode. Called from ext3_new_inode. |
267 | * | 244 | * |
@@ -284,8 +261,7 @@ ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir) | |||
284 | inode->i_mode &= ~current_umask(); | 261 | inode->i_mode &= ~current_umask(); |
285 | } | 262 | } |
286 | if (test_opt(inode->i_sb, POSIX_ACL) && acl) { | 263 | if (test_opt(inode->i_sb, POSIX_ACL) && acl) { |
287 | struct posix_acl *clone; | 264 | mode_t mode = inode->i_mode; |
288 | mode_t mode; | ||
289 | 265 | ||
290 | if (S_ISDIR(inode->i_mode)) { | 266 | if (S_ISDIR(inode->i_mode)) { |
291 | error = ext3_set_acl(handle, inode, | 267 | error = ext3_set_acl(handle, inode, |
@@ -293,22 +269,15 @@ ext3_init_acl(handle_t *handle, struct inode *inode, struct inode *dir) | |||
293 | if (error) | 269 | if (error) |
294 | goto cleanup; | 270 | goto cleanup; |
295 | } | 271 | } |
296 | clone = posix_acl_clone(acl, GFP_NOFS); | 272 | error = posix_acl_create(&acl, GFP_NOFS, &mode); |
297 | error = -ENOMEM; | 273 | if (error < 0) |
298 | if (!clone) | 274 | return error; |
299 | goto cleanup; | 275 | |
300 | 276 | inode->i_mode = mode; | |
301 | mode = inode->i_mode; | 277 | if (error > 0) { |
302 | error = posix_acl_create_masq(clone, &mode); | 278 | /* This is an extended ACL */ |
303 | if (error >= 0) { | 279 | error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, acl); |
304 | inode->i_mode = mode; | ||
305 | if (error > 0) { | ||
306 | /* This is an extended ACL */ | ||
307 | error = ext3_set_acl(handle, inode, | ||
308 | ACL_TYPE_ACCESS, clone); | ||
309 | } | ||
310 | } | 280 | } |
311 | posix_acl_release(clone); | ||
312 | } | 281 | } |
313 | cleanup: | 282 | cleanup: |
314 | posix_acl_release(acl); | 283 | posix_acl_release(acl); |
@@ -332,7 +301,9 @@ cleanup: | |||
332 | int | 301 | int |
333 | ext3_acl_chmod(struct inode *inode) | 302 | ext3_acl_chmod(struct inode *inode) |
334 | { | 303 | { |
335 | struct posix_acl *acl, *clone; | 304 | struct posix_acl *acl; |
305 | handle_t *handle; | ||
306 | int retries = 0; | ||
336 | int error; | 307 | int error; |
337 | 308 | ||
338 | if (S_ISLNK(inode->i_mode)) | 309 | if (S_ISLNK(inode->i_mode)) |
@@ -342,31 +313,24 @@ ext3_acl_chmod(struct inode *inode) | |||
342 | acl = ext3_get_acl(inode, ACL_TYPE_ACCESS); | 313 | acl = ext3_get_acl(inode, ACL_TYPE_ACCESS); |
343 | if (IS_ERR(acl) || !acl) | 314 | if (IS_ERR(acl) || !acl) |
344 | return PTR_ERR(acl); | 315 | return PTR_ERR(acl); |
345 | clone = posix_acl_clone(acl, GFP_KERNEL); | 316 | error = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode); |
346 | posix_acl_release(acl); | 317 | if (error) |
347 | if (!clone) | 318 | return error; |
348 | return -ENOMEM; | 319 | retry: |
349 | error = posix_acl_chmod_masq(clone, inode->i_mode); | 320 | handle = ext3_journal_start(inode, |
350 | if (!error) { | 321 | EXT3_DATA_TRANS_BLOCKS(inode->i_sb)); |
351 | handle_t *handle; | 322 | if (IS_ERR(handle)) { |
352 | int retries = 0; | 323 | error = PTR_ERR(handle); |
353 | 324 | ext3_std_error(inode->i_sb, error); | |
354 | retry: | 325 | goto out; |
355 | handle = ext3_journal_start(inode, | ||
356 | EXT3_DATA_TRANS_BLOCKS(inode->i_sb)); | ||
357 | if (IS_ERR(handle)) { | ||
358 | error = PTR_ERR(handle); | ||
359 | ext3_std_error(inode->i_sb, error); | ||
360 | goto out; | ||
361 | } | ||
362 | error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, clone); | ||
363 | ext3_journal_stop(handle); | ||
364 | if (error == -ENOSPC && | ||
365 | ext3_should_retry_alloc(inode->i_sb, &retries)) | ||
366 | goto retry; | ||
367 | } | 326 | } |
327 | error = ext3_set_acl(handle, inode, ACL_TYPE_ACCESS, acl); | ||
328 | ext3_journal_stop(handle); | ||
329 | if (error == -ENOSPC && | ||
330 | ext3_should_retry_alloc(inode->i_sb, &retries)) | ||
331 | goto retry; | ||
368 | out: | 332 | out: |
369 | posix_acl_release(clone); | 333 | posix_acl_release(acl); |
370 | return error; | 334 | return error; |
371 | } | 335 | } |
372 | 336 | ||