*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/sched.h>
+#include <linux/slab.h>
#include <linux/fs.h>
-#include <linux/quotaops.h>
#include <linux/posix_acl_xattr.h>
#include "jfs_incore.h"
+#include "jfs_txnmgr.h"
#include "jfs_xattr.h"
#include "jfs_acl.h"
{
struct posix_acl *acl;
char *ea_name;
- struct jfs_inode_info *ji = JFS_IP(inode);
- struct posix_acl **p_acl;
int size;
char *value = NULL;
+ acl = get_cached_acl(inode, type);
+ if (acl != ACL_NOT_CACHED)
+ return acl;
+
switch(type) {
case ACL_TYPE_ACCESS:
ea_name = POSIX_ACL_XATTR_ACCESS;
- p_acl = &ji->i_acl;
break;
case ACL_TYPE_DEFAULT:
ea_name = POSIX_ACL_XATTR_DEFAULT;
- p_acl = &ji->i_default_acl;
break;
default:
return ERR_PTR(-EINVAL);
}
- if (*p_acl != JFS_ACL_NOT_CACHED)
- return posix_acl_dup(*p_acl);
-
size = __jfs_getxattr(inode, ea_name, NULL, 0);
if (size > 0) {
}
if (size < 0) {
- if (size == -ENODATA) {
- *p_acl = NULL;
+ if (size == -ENODATA)
acl = NULL;
- } else
+ else
acl = ERR_PTR(size);
} else {
acl = posix_acl_from_xattr(value, size);
- if (!IS_ERR(acl))
- *p_acl = posix_acl_dup(acl);
}
kfree(value);
+ if (!IS_ERR(acl))
+ set_cached_acl(inode, type, acl);
return acl;
}
-static int jfs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
+static int jfs_set_acl(tid_t tid, struct inode *inode, int type,
+ struct posix_acl *acl)
{
char *ea_name;
- struct jfs_inode_info *ji = JFS_IP(inode);
- struct posix_acl **p_acl;
int rc;
int size = 0;
char *value = NULL;
switch(type) {
case ACL_TYPE_ACCESS:
ea_name = POSIX_ACL_XATTR_ACCESS;
- p_acl = &ji->i_acl;
break;
case ACL_TYPE_DEFAULT:
ea_name = POSIX_ACL_XATTR_DEFAULT;
- p_acl = &ji->i_default_acl;
if (!S_ISDIR(inode->i_mode))
return acl ? -EACCES : 0;
break;
if (rc < 0)
goto out;
}
- rc = __jfs_setxattr(inode, ea_name, value, size, 0);
+ rc = __jfs_setxattr(tid, inode, ea_name, value, size, 0);
out:
kfree(value);
- if (!rc) {
- if (*p_acl && (*p_acl != JFS_ACL_NOT_CACHED))
- posix_acl_release(*p_acl);
- *p_acl = posix_acl_dup(acl);
- }
+ if (!rc)
+ set_cached_acl(inode, type, acl);
+
return rc;
}
-static int jfs_check_acl(struct inode *inode, int mask)
+int jfs_check_acl(struct inode *inode, int mask)
{
- struct jfs_inode_info *ji = JFS_IP(inode);
+ struct posix_acl *acl = jfs_get_acl(inode, ACL_TYPE_ACCESS);
- if (ji->i_acl == JFS_ACL_NOT_CACHED) {
- struct posix_acl *acl = jfs_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
+ if (IS_ERR(acl))
+ return PTR_ERR(acl);
+ if (acl) {
+ int error = posix_acl_permission(inode, acl, mask);
posix_acl_release(acl);
+ return error;
}
- if (ji->i_acl)
- return posix_acl_permission(inode, ji->i_acl, mask);
return -EAGAIN;
}
-int jfs_permission(struct inode *inode, int mask, struct nameidata *nd)
-{
- return generic_permission(inode, mask, jfs_check_acl);
-}
-
-int jfs_init_acl(struct inode *inode, struct inode *dir)
+int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir)
{
struct posix_acl *acl = NULL;
struct posix_acl *clone;
if (acl) {
if (S_ISDIR(inode->i_mode)) {
- rc = jfs_set_acl(inode, ACL_TYPE_DEFAULT, acl);
+ rc = jfs_set_acl(tid, inode, ACL_TYPE_DEFAULT, acl);
if (rc)
goto cleanup;
}
if (rc >= 0) {
inode->i_mode = mode;
if (rc > 0)
- rc = jfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
+ rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS,
+ clone);
}
posix_acl_release(clone);
cleanup:
posix_acl_release(acl);
} else
- inode->i_mode &= ~current->fs->umask;
+ inode->i_mode &= ~current_umask();
+
+ JFS_IP(inode)->mode2 = (JFS_IP(inode)->mode2 & 0xffff0000) |
+ inode->i_mode;
return rc;
}
-static int jfs_acl_chmod(struct inode *inode)
+int jfs_acl_chmod(struct inode *inode)
{
struct posix_acl *acl, *clone;
int rc;
return -ENOMEM;
rc = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!rc)
- rc = jfs_set_acl(inode, ACL_TYPE_ACCESS, clone);
-
- posix_acl_release(clone);
- return rc;
-}
-
-int jfs_setattr(struct dentry *dentry, struct iattr *iattr)
-{
- struct inode *inode = dentry->d_inode;
- int rc;
-
- rc = inode_change_ok(inode, iattr);
- if (rc)
- return rc;
-
- if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
- (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
- if (DQUOT_TRANSFER(inode, iattr))
- return -EDQUOT;
+ if (!rc) {
+ tid_t tid = txBegin(inode->i_sb, 0);
+ mutex_lock(&JFS_IP(inode)->commit_mutex);
+ rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, clone);
+ if (!rc)
+ rc = txCommit(tid, 1, &inode, 0);
+ txEnd(tid);
+ mutex_unlock(&JFS_IP(inode)->commit_mutex);
}
- rc = inode_setattr(inode, iattr);
-
- if (!rc && (iattr->ia_valid & ATTR_MODE))
- rc = jfs_acl_chmod(inode);
-
+ posix_acl_release(clone);
return rc;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff