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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/fs/jfs/acl.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/fs/jfs/acl.c')
-rw-r--r--ANDROID_3.4.5/fs/jfs/acl.c178
1 files changed, 0 insertions, 178 deletions
diff --git a/ANDROID_3.4.5/fs/jfs/acl.c b/ANDROID_3.4.5/fs/jfs/acl.c
deleted file mode 100644
index 45559dc3..00000000
--- a/ANDROID_3.4.5/fs/jfs/acl.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * Copyright (C) International Business Machines Corp., 2002-2004
- * Copyright (C) Andreas Gruenbacher, 2001
- * Copyright (C) Linus Torvalds, 1991, 1992
- *
- * 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
- * (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
- * 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/posix_acl_xattr.h>
-#include "jfs_incore.h"
-#include "jfs_txnmgr.h"
-#include "jfs_xattr.h"
-#include "jfs_acl.h"
-
-struct posix_acl *jfs_get_acl(struct inode *inode, int type)
-{
- struct posix_acl *acl;
- char *ea_name;
- 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;
- break;
- case ACL_TYPE_DEFAULT:
- ea_name = POSIX_ACL_XATTR_DEFAULT;
- break;
- default:
- return ERR_PTR(-EINVAL);
- }
-
- size = __jfs_getxattr(inode, ea_name, NULL, 0);
-
- if (size > 0) {
- value = kmalloc(size, GFP_KERNEL);
- if (!value)
- return ERR_PTR(-ENOMEM);
- size = __jfs_getxattr(inode, ea_name, value, size);
- }
-
- if (size < 0) {
- if (size == -ENODATA)
- acl = NULL;
- else
- acl = ERR_PTR(size);
- } else {
- acl = posix_acl_from_xattr(value, size);
- }
- kfree(value);
- if (!IS_ERR(acl))
- set_cached_acl(inode, type, acl);
- return acl;
-}
-
-static int jfs_set_acl(tid_t tid, struct inode *inode, int type,
- struct posix_acl *acl)
-{
- char *ea_name;
- int rc;
- int size = 0;
- char *value = NULL;
-
- if (S_ISLNK(inode->i_mode))
- return -EOPNOTSUPP;
-
- switch(type) {
- case ACL_TYPE_ACCESS:
- ea_name = POSIX_ACL_XATTR_ACCESS;
- break;
- case ACL_TYPE_DEFAULT:
- ea_name = POSIX_ACL_XATTR_DEFAULT;
- if (!S_ISDIR(inode->i_mode))
- return acl ? -EACCES : 0;
- break;
- default:
- return -EINVAL;
- }
- if (acl) {
- size = posix_acl_xattr_size(acl->a_count);
- value = kmalloc(size, GFP_KERNEL);
- if (!value)
- return -ENOMEM;
- rc = posix_acl_to_xattr(acl, value, size);
- if (rc < 0)
- goto out;
- }
- rc = __jfs_setxattr(tid, inode, ea_name, value, size, 0);
-out:
- kfree(value);
-
- if (!rc)
- set_cached_acl(inode, type, acl);
-
- return rc;
-}
-
-int jfs_init_acl(tid_t tid, struct inode *inode, struct inode *dir)
-{
- struct posix_acl *acl = NULL;
- int rc = 0;
-
- if (S_ISLNK(inode->i_mode))
- return 0;
-
- acl = jfs_get_acl(dir, ACL_TYPE_DEFAULT);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
-
- if (acl) {
- if (S_ISDIR(inode->i_mode)) {
- rc = jfs_set_acl(tid, inode, ACL_TYPE_DEFAULT, acl);
- if (rc)
- goto cleanup;
- }
- rc = posix_acl_create(&acl, GFP_KERNEL, &inode->i_mode);
- if (rc < 0)
- goto cleanup; /* posix_acl_release(NULL) is no-op */
- if (rc > 0)
- rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, acl);
-cleanup:
- posix_acl_release(acl);
- } else
- inode->i_mode &= ~current_umask();
-
- JFS_IP(inode)->mode2 = (JFS_IP(inode)->mode2 & 0xffff0000) |
- inode->i_mode;
-
- return rc;
-}
-
-int jfs_acl_chmod(struct inode *inode)
-{
- struct posix_acl *acl;
- int rc;
- tid_t tid;
-
- if (S_ISLNK(inode->i_mode))
- return -EOPNOTSUPP;
-
- acl = jfs_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR(acl) || !acl)
- return PTR_ERR(acl);
-
- rc = posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
- if (rc)
- return rc;
-
- tid = txBegin(inode->i_sb, 0);
- mutex_lock(&JFS_IP(inode)->commit_mutex);
- rc = jfs_set_acl(tid, inode, ACL_TYPE_ACCESS, acl);
- if (!rc)
- rc = txCommit(tid, 1, &inode, 0);
- txEnd(tid);
- mutex_unlock(&JFS_IP(inode)->commit_mutex);
-
- posix_acl_release(acl);
- return rc;
-}