diff options
Diffstat (limited to 'fs/ocfs2/acl.c')
-rw-r--r-- | fs/ocfs2/acl.c | 78 |
1 files changed, 73 insertions, 5 deletions
diff --git a/fs/ocfs2/acl.c b/fs/ocfs2/acl.c index 0501974bedd0..e13fc9e8fcdc 100644 --- a/fs/ocfs2/acl.c +++ b/fs/ocfs2/acl.c | |||
@@ -21,6 +21,7 @@ | |||
21 | 21 | ||
22 | #include <linux/init.h> | 22 | #include <linux/init.h> |
23 | #include <linux/module.h> | 23 | #include <linux/module.h> |
24 | #include <linux/slab.h> | ||
24 | #include <linux/string.h> | 25 | #include <linux/string.h> |
25 | 26 | ||
26 | #define MLOG_MASK_PREFIX ML_INODE | 27 | #define MLOG_MASK_PREFIX ML_INODE |
@@ -30,6 +31,8 @@ | |||
30 | #include "alloc.h" | 31 | #include "alloc.h" |
31 | #include "dlmglue.h" | 32 | #include "dlmglue.h" |
32 | #include "file.h" | 33 | #include "file.h" |
34 | #include "inode.h" | ||
35 | #include "journal.h" | ||
33 | #include "ocfs2_fs.h" | 36 | #include "ocfs2_fs.h" |
34 | 37 | ||
35 | #include "xattr.h" | 38 | #include "xattr.h" |
@@ -166,6 +169,60 @@ static struct posix_acl *ocfs2_get_acl(struct inode *inode, int type) | |||
166 | } | 169 | } |
167 | 170 | ||
168 | /* | 171 | /* |
172 | * Helper function to set i_mode in memory and disk. Some call paths | ||
173 | * will not have di_bh or a journal handle to pass, in which case it | ||
174 | * will create it's own. | ||
175 | */ | ||
176 | static int ocfs2_acl_set_mode(struct inode *inode, struct buffer_head *di_bh, | ||
177 | handle_t *handle, umode_t new_mode) | ||
178 | { | ||
179 | int ret, commit_handle = 0; | ||
180 | struct ocfs2_dinode *di; | ||
181 | |||
182 | if (di_bh == NULL) { | ||
183 | ret = ocfs2_read_inode_block(inode, &di_bh); | ||
184 | if (ret) { | ||
185 | mlog_errno(ret); | ||
186 | goto out; | ||
187 | } | ||
188 | } else | ||
189 | get_bh(di_bh); | ||
190 | |||
191 | if (handle == NULL) { | ||
192 | handle = ocfs2_start_trans(OCFS2_SB(inode->i_sb), | ||
193 | OCFS2_INODE_UPDATE_CREDITS); | ||
194 | if (IS_ERR(handle)) { | ||
195 | ret = PTR_ERR(handle); | ||
196 | mlog_errno(ret); | ||
197 | goto out_brelse; | ||
198 | } | ||
199 | |||
200 | commit_handle = 1; | ||
201 | } | ||
202 | |||
203 | di = (struct ocfs2_dinode *)di_bh->b_data; | ||
204 | ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), di_bh, | ||
205 | OCFS2_JOURNAL_ACCESS_WRITE); | ||
206 | if (ret) { | ||
207 | mlog_errno(ret); | ||
208 | goto out_commit; | ||
209 | } | ||
210 | |||
211 | inode->i_mode = new_mode; | ||
212 | di->i_mode = cpu_to_le16(inode->i_mode); | ||
213 | |||
214 | ocfs2_journal_dirty(handle, di_bh); | ||
215 | |||
216 | out_commit: | ||
217 | if (commit_handle) | ||
218 | ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle); | ||
219 | out_brelse: | ||
220 | brelse(di_bh); | ||
221 | out: | ||
222 | return ret; | ||
223 | } | ||
224 | |||
225 | /* | ||
169 | * Set the access or default ACL of an inode. | 226 | * Set the access or default ACL of an inode. |
170 | */ | 227 | */ |
171 | static int ocfs2_set_acl(handle_t *handle, | 228 | static int ocfs2_set_acl(handle_t *handle, |
@@ -193,9 +250,14 @@ static int ocfs2_set_acl(handle_t *handle, | |||
193 | if (ret < 0) | 250 | if (ret < 0) |
194 | return ret; | 251 | return ret; |
195 | else { | 252 | else { |
196 | inode->i_mode = mode; | ||
197 | if (ret == 0) | 253 | if (ret == 0) |
198 | acl = NULL; | 254 | acl = NULL; |
255 | |||
256 | ret = ocfs2_acl_set_mode(inode, di_bh, | ||
257 | handle, mode); | ||
258 | if (ret) | ||
259 | return ret; | ||
260 | |||
199 | } | 261 | } |
200 | } | 262 | } |
201 | break; | 263 | break; |
@@ -283,6 +345,7 @@ int ocfs2_init_acl(handle_t *handle, | |||
283 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); | 345 | struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); |
284 | struct posix_acl *acl = NULL; | 346 | struct posix_acl *acl = NULL; |
285 | int ret = 0; | 347 | int ret = 0; |
348 | mode_t mode; | ||
286 | 349 | ||
287 | if (!S_ISLNK(inode->i_mode)) { | 350 | if (!S_ISLNK(inode->i_mode)) { |
288 | if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) { | 351 | if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) { |
@@ -291,12 +354,17 @@ int ocfs2_init_acl(handle_t *handle, | |||
291 | if (IS_ERR(acl)) | 354 | if (IS_ERR(acl)) |
292 | return PTR_ERR(acl); | 355 | return PTR_ERR(acl); |
293 | } | 356 | } |
294 | if (!acl) | 357 | if (!acl) { |
295 | inode->i_mode &= ~current_umask(); | 358 | mode = inode->i_mode & ~current_umask(); |
359 | ret = ocfs2_acl_set_mode(inode, di_bh, handle, mode); | ||
360 | if (ret) { | ||
361 | mlog_errno(ret); | ||
362 | goto cleanup; | ||
363 | } | ||
364 | } | ||
296 | } | 365 | } |
297 | if ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) && acl) { | 366 | if ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) && acl) { |
298 | struct posix_acl *clone; | 367 | struct posix_acl *clone; |
299 | mode_t mode; | ||
300 | 368 | ||
301 | if (S_ISDIR(inode->i_mode)) { | 369 | if (S_ISDIR(inode->i_mode)) { |
302 | ret = ocfs2_set_acl(handle, inode, di_bh, | 370 | ret = ocfs2_set_acl(handle, inode, di_bh, |
@@ -313,7 +381,7 @@ int ocfs2_init_acl(handle_t *handle, | |||
313 | mode = inode->i_mode; | 381 | mode = inode->i_mode; |
314 | ret = posix_acl_create_masq(clone, &mode); | 382 | ret = posix_acl_create_masq(clone, &mode); |
315 | if (ret >= 0) { | 383 | if (ret >= 0) { |
316 | inode->i_mode = mode; | 384 | ret = ocfs2_acl_set_mode(inode, di_bh, handle, mode); |
317 | if (ret > 0) { | 385 | if (ret > 0) { |
318 | ret = ocfs2_set_acl(handle, inode, | 386 | ret = ocfs2_set_acl(handle, inode, |
319 | di_bh, ACL_TYPE_ACCESS, | 387 | di_bh, ACL_TYPE_ACCESS, |