From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Date: Thu, 12 May 2022 16:08:40 +0000 (+0300)
Subject: fs/ntfs3: Do not change mode if ntfs_set_ea failed
X-Git-Tag: v6.0-rc2~30^2~20
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=460bbf2990b3fdc597601c2cf669a3371c069242;p=tomoyo%2Ftomoyo-test1.git

fs/ntfs3: Do not change mode if ntfs_set_ea failed

ntfs_set_ea can fail with NOSPC, so we don't need to
change mode in this situation.
Fixes xfstest generic/449
Fixes: be71b5cba2e6 ("fs/ntfs3: Add attrib operations")

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---

diff --git a/fs/ntfs3/xattr.c b/fs/ntfs3/xattr.c
index 2d29afe4b40b..ddd9fc9129ed 100644
--- a/fs/ntfs3/xattr.c
+++ b/fs/ntfs3/xattr.c
@@ -547,28 +547,23 @@ static noinline int ntfs_set_acl_ex(struct user_namespace *mnt_userns,
 {
 	const char *name;
 	size_t size, name_len;
-	void *value = NULL;
-	int err = 0;
+	void *value;
+	int err;
 	int flags;
+	umode_t mode;
 
 	if (S_ISLNK(inode->i_mode))
 		return -EOPNOTSUPP;
 
+	mode = inode->i_mode;
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		/* Do not change i_mode if we are in init_acl */
 		if (acl && !init_acl) {
-			umode_t mode;
-
 			err = posix_acl_update_mode(mnt_userns, inode, &mode,
 						    &acl);
 			if (err)
 				goto out;
-
-			if (inode->i_mode != mode) {
-				inode->i_mode = mode;
-				mark_inode_dirty(inode);
-			}
 		}
 		name = XATTR_NAME_POSIX_ACL_ACCESS;
 		name_len = sizeof(XATTR_NAME_POSIX_ACL_ACCESS) - 1;
@@ -604,8 +599,13 @@ static noinline int ntfs_set_acl_ex(struct user_namespace *mnt_userns,
 	err = ntfs_set_ea(inode, name, name_len, value, size, flags, 0);
 	if (err == -ENODATA && !size)
 		err = 0; /* Removing non existed xattr. */
-	if (!err)
+	if (!err) {
 		set_cached_acl(inode, type, acl);
+		if (inode->i_mode != mode) {
+			inode->i_mode = mode;
+			mark_inode_dirty(inode);
+		}
+	}
 
 out:
 	kfree(value);