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-rw-r--r--fs/jfs/acl.c75
1 files changed, 22 insertions, 53 deletions
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 8a0a0666d5a6..b3a32caf2b45 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -27,7 +27,7 @@
27#include "jfs_xattr.h" 27#include "jfs_xattr.h"
28#include "jfs_acl.h" 28#include "jfs_acl.h"
29 29
30static struct posix_acl *jfs_get_acl(struct inode *inode, int type) 30struct posix_acl *jfs_get_acl(struct inode *inode, int type)
31{ 31{
32 struct posix_acl *acl; 32 struct posix_acl *acl;
33 char *ea_name; 33 char *ea_name;
@@ -114,30 +114,9 @@ out:
114 return rc; 114 return rc;
115} 115}
116 116
117int jfs_check_acl(struct inode *inode, int mask)
118{
119 struct posix_acl *acl;
120
121 if (mask & MAY_NOT_BLOCK)
122 return -ECHILD;
123
124 acl = jfs_get_acl(inode, ACL_TYPE_ACCESS);
125 if (IS_ERR(acl))
126 return PTR_ERR(acl);
127 if (acl) {
128 int error = posix_acl_permission(inode, acl, mask);
129 posix_acl_release(acl);
130 return error;
131 }
132
133 return -EAGAIN;
134}
135
136int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir) 117int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir)
137{ 118{
138 struct posix_acl *acl = NULL; 119 struct posix_acl *acl = NULL;
139 struct posix_acl *clone;
140 mode_t mode;
141 int rc = 0; 120 int rc = 0;
142 121
143 if (S_ISLNK(inode->i_mode)) 122 if (S_ISLNK(inode->i_mode))
@@ -148,25 +127,18 @@ int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir)
148 return PTR_ERR(acl); 127 return PTR_ERR(acl);
149 128
150 if (acl) { 129 if (acl) {
130 mode_t mode = inode->i_mode;
151 if (S_ISDIR(inode->i_mode)) { 131 if (S_ISDIR(inode->i_mode)) {
152 rc = jfs_set_acl(tid, inode, ACL_TYPE_DEFAULT, acl); 132 rc = jfs_set_acl(tid, inode, ACL_TYPE_DEFAULT, acl);
153 if (rc) 133 if (rc)
154 goto cleanup; 134 goto cleanup;
155 } 135 }
156 clone = posix_acl_clone(acl, GFP_KERNEL); 136 rc = posix_acl_create(&acl, GFP_KERNEL, &mode);
157 if (!clone) { 137 if (rc < 0)
158 rc = -ENOMEM; 138 goto cleanup; /* posix_acl_release(NULL) is no-op */
159 goto cleanup; 139 inode->i_mode = mode;
160 } 140 if (rc > 0)
161 mode = inode->i_mode; 141 rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, acl);
162 rc = posix_acl_create_masq(clone, &mode);
163 if (rc >= 0) {
164 inode->i_mode = mode;
165 if (rc > 0)
166 rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS,
167 clone);
168 }
169 posix_acl_release(clone);
170cleanup: 142cleanup:
171 posix_acl_release(acl); 143 posix_acl_release(acl);
172 } else 144 } else
@@ -180,8 +152,9 @@ cleanup:
180 152
181int jfs_acl_chmod(struct inode *inode) 153int jfs_acl_chmod(struct inode *inode)
182{ 154{
183 struct posix_acl *acl, *clone; 155 struct posix_acl *acl;
184 int rc; 156 int rc;
157 tid_t tid;
185 158
186 if (S_ISLNK(inode->i_mode)) 159 if (S_ISLNK(inode->i_mode))
187 return -EOPNOTSUPP; 160 return -EOPNOTSUPP;
@@ -190,22 +163,18 @@ int jfs_acl_chmod(struct inode *inode)
190 if (IS_ERR(acl) || !acl) 163 if (IS_ERR(acl) || !acl)
191 return PTR_ERR(acl); 164 return PTR_ERR(acl);
192 165
193 clone = posix_acl_clone(acl, GFP_KERNEL); 166 rc = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
194 posix_acl_release(acl); 167 if (rc)
195 if (!clone) 168 return rc;
196 return -ENOMEM;
197
198 rc = posix_acl_chmod_masq(clone, inode->i_mode);
199 if (!rc) {
200 tid_t tid = txBegin(inode->i_sb, 0);
201 mutex_lock(&JFS_IP(inode)->commit_mutex);
202 rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, clone);
203 if (!rc)
204 rc = txCommit(tid, 1, &inode, 0);
205 txEnd(tid);
206 mutex_unlock(&JFS_IP(inode)->commit_mutex);
207 }
208 169
209 posix_acl_release(clone); 170 tid = txBegin(inode->i_sb, 0);
171 mutex_lock(&JFS_IP(inode)->commit_mutex);
172 rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, acl);
173 if (!rc)
174 rc = txCommit(tid, 1, &inode, 0);
175 txEnd(tid);
176 mutex_unlock(&JFS_IP(inode)->commit_mutex);
177
178 posix_acl_release(acl);
210 return rc; 179 return rc;
211} 180}