diff options
Diffstat (limited to 'fs/jffs2/acl.c')
-rw-r--r-- | fs/jffs2/acl.c | 60 |
1 files changed, 11 insertions, 49 deletions
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c index ac16589ebbd1..edd2ad6416d8 100644 --- a/fs/jffs2/acl.c +++ b/fs/jffs2/acl.c | |||
@@ -156,47 +156,25 @@ static void *jffs2_acl_to_medium(const struct posix_acl *acl, size_t *size) | |||
156 | return ERR_PTR(-EINVAL); | 156 | return ERR_PTR(-EINVAL); |
157 | } | 157 | } |
158 | 158 | ||
159 | static struct posix_acl *jffs2_iget_acl(struct inode *inode, struct posix_acl **i_acl) | ||
160 | { | ||
161 | struct posix_acl *acl = ACL_NOT_CACHED; | ||
162 | |||
163 | spin_lock(&inode->i_lock); | ||
164 | if (*i_acl != ACL_NOT_CACHED) | ||
165 | acl = posix_acl_dup(*i_acl); | ||
166 | spin_unlock(&inode->i_lock); | ||
167 | return acl; | ||
168 | } | ||
169 | |||
170 | static void jffs2_iset_acl(struct inode *inode, struct posix_acl **i_acl, struct posix_acl *acl) | ||
171 | { | ||
172 | spin_lock(&inode->i_lock); | ||
173 | if (*i_acl != ACL_NOT_CACHED) | ||
174 | posix_acl_release(*i_acl); | ||
175 | *i_acl = posix_acl_dup(acl); | ||
176 | spin_unlock(&inode->i_lock); | ||
177 | } | ||
178 | |||
179 | static struct posix_acl *jffs2_get_acl(struct inode *inode, int type) | 159 | static struct posix_acl *jffs2_get_acl(struct inode *inode, int type) |
180 | { | 160 | { |
181 | struct posix_acl *acl; | 161 | struct posix_acl *acl; |
182 | char *value = NULL; | 162 | char *value = NULL; |
183 | int rc, xprefix; | 163 | int rc, xprefix; |
184 | 164 | ||
165 | acl = get_cached_acl(inode, type); | ||
166 | if (acl != ACL_NOT_CACHED) | ||
167 | return acl; | ||
168 | |||
185 | switch (type) { | 169 | switch (type) { |
186 | case ACL_TYPE_ACCESS: | 170 | case ACL_TYPE_ACCESS: |
187 | acl = jffs2_iget_acl(inode, &inode->i_acl); | ||
188 | if (acl != ACL_NOT_CACHED) | ||
189 | return acl; | ||
190 | xprefix = JFFS2_XPREFIX_ACL_ACCESS; | 171 | xprefix = JFFS2_XPREFIX_ACL_ACCESS; |
191 | break; | 172 | break; |
192 | case ACL_TYPE_DEFAULT: | 173 | case ACL_TYPE_DEFAULT: |
193 | acl = jffs2_iget_acl(inode, &inode->i_default_acl); | ||
194 | if (acl != ACL_NOT_CACHED) | ||
195 | return acl; | ||
196 | xprefix = JFFS2_XPREFIX_ACL_DEFAULT; | 174 | xprefix = JFFS2_XPREFIX_ACL_DEFAULT; |
197 | break; | 175 | break; |
198 | default: | 176 | default: |
199 | return ERR_PTR(-EINVAL); | 177 | BUG(); |
200 | } | 178 | } |
201 | rc = do_jffs2_getxattr(inode, xprefix, "", NULL, 0); | 179 | rc = do_jffs2_getxattr(inode, xprefix, "", NULL, 0); |
202 | if (rc > 0) { | 180 | if (rc > 0) { |
@@ -214,16 +192,8 @@ static struct posix_acl *jffs2_get_acl(struct inode *inode, int type) | |||
214 | } | 192 | } |
215 | if (value) | 193 | if (value) |
216 | kfree(value); | 194 | kfree(value); |
217 | if (!IS_ERR(acl)) { | 195 | if (!IS_ERR(acl)) |
218 | switch (type) { | 196 | set_cached_acl(inode, type, acl); |
219 | case ACL_TYPE_ACCESS: | ||
220 | jffs2_iset_acl(inode, &inode->i_acl, acl); | ||
221 | break; | ||
222 | case ACL_TYPE_DEFAULT: | ||
223 | jffs2_iset_acl(inode, &inode->i_default_acl, acl); | ||
224 | break; | ||
225 | } | ||
226 | } | ||
227 | return acl; | 197 | return acl; |
228 | } | 198 | } |
229 | 199 | ||
@@ -283,16 +253,8 @@ static int jffs2_set_acl(struct inode *inode, int type, struct posix_acl *acl) | |||
283 | return -EINVAL; | 253 | return -EINVAL; |
284 | } | 254 | } |
285 | rc = __jffs2_set_acl(inode, xprefix, acl); | 255 | rc = __jffs2_set_acl(inode, xprefix, acl); |
286 | if (!rc) { | 256 | if (!rc) |
287 | switch(type) { | 257 | set_cached_acl(inode, type, acl); |
288 | case ACL_TYPE_ACCESS: | ||
289 | jffs2_iset_acl(inode, &inode->i_acl, acl); | ||
290 | break; | ||
291 | case ACL_TYPE_DEFAULT: | ||
292 | jffs2_iset_acl(inode, &inode->i_default_acl, acl); | ||
293 | break; | ||
294 | } | ||
295 | } | ||
296 | return rc; | 258 | return rc; |
297 | } | 259 | } |
298 | 260 | ||
@@ -336,7 +298,7 @@ int jffs2_init_acl_pre(struct inode *dir_i, struct inode *inode, int *i_mode) | |||
336 | *i_mode &= ~current_umask(); | 298 | *i_mode &= ~current_umask(); |
337 | } else { | 299 | } else { |
338 | if (S_ISDIR(*i_mode)) | 300 | if (S_ISDIR(*i_mode)) |
339 | jffs2_iset_acl(inode, &inode->i_default_acl, acl); | 301 | set_cached_acl(inode, ACL_TYPE_DEFAULT, acl); |
340 | 302 | ||
341 | clone = posix_acl_clone(acl, GFP_KERNEL); | 303 | clone = posix_acl_clone(acl, GFP_KERNEL); |
342 | if (!clone) | 304 | if (!clone) |
@@ -347,7 +309,7 @@ int jffs2_init_acl_pre(struct inode *dir_i, struct inode *inode, int *i_mode) | |||
347 | return rc; | 309 | return rc; |
348 | } | 310 | } |
349 | if (rc > 0) | 311 | if (rc > 0) |
350 | jffs2_iset_acl(inode, &inode->i_acl, clone); | 312 | set_cached_acl(inode, ACL_TYPE_ACCESS, clone); |
351 | 313 | ||
352 | posix_acl_release(clone); | 314 | posix_acl_release(clone); |
353 | } | 315 | } |