add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/f2fs/acl.c
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@@ -29,6 +29,7 @@
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 static inline int f2fs_acl_count(size_t size)
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 {
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 	ssize_t s;
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+
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 	size -= sizeof(struct f2fs_acl_header);
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 	s = size - 4 * sizeof(struct f2fs_acl_entry_short);
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 	if (s < 0) {
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@@ -160,7 +161,7 @@
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 	return (void *)f2fs_acl;
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 fail:
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-	kvfree(f2fs_acl);
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+	kfree(f2fs_acl);
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 	return ERR_PTR(-EINVAL);
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 }
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@@ -190,7 +191,7 @@
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 		acl = NULL;
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 	else
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 		acl = ERR_PTR(retval);
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-	kvfree(value);
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+	kfree(value);
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 	return acl;
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 }
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@@ -198,6 +199,27 @@
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 struct posix_acl *f2fs_get_acl(struct inode *inode, int type)
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 {
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 	return __f2fs_get_acl(inode, type, NULL);
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+}
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+
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+static int f2fs_acl_update_mode(struct inode *inode, umode_t *mode_p,
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+			  struct posix_acl **acl)
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+{
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+	umode_t mode = inode->i_mode;
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+	int error;
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+
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+	if (is_inode_flag_set(inode, FI_ACL_MODE))
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+		mode = F2FS_I(inode)->i_acl_mode;
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+
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+	error = posix_acl_equiv_mode(*acl, &mode);
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+	if (error < 0)
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+		return error;
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+	if (error == 0)
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+		*acl = NULL;
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+	if (!in_group_p(inode->i_gid) &&
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+	    !capable_wrt_inode_uidgid(inode, CAP_FSETID))
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+		mode &= ~S_ISGID;
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+	*mode_p = mode;
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+	return 0;
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 }
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 static int __f2fs_set_acl(struct inode *inode, int type,
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@@ -213,7 +235,7 @@
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 	case ACL_TYPE_ACCESS:
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 		name_index = F2FS_XATTR_INDEX_POSIX_ACL_ACCESS;
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 		if (acl && !ipage) {
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-			error = posix_acl_update_mode(inode, &mode, &acl);
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+			error = f2fs_acl_update_mode(inode, &mode, &acl);
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 			if (error)
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 				return error;
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 			set_acl_inode(inode, mode);
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@@ -240,7 +262,7 @@
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 	error = f2fs_setxattr(inode, name_index, "", value, size, ipage, 0);
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-	kvfree(value);
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+	kfree(value);
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 	if (!error)
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 		set_cached_acl(inode, type, acl);
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@@ -384,7 +406,7 @@
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 							struct page *dpage)
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 {
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 	struct posix_acl *default_acl = NULL, *acl = NULL;
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-	int error = 0;
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+	int error;
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 	error = f2fs_acl_create(dir, &inode->i_mode, &default_acl, &acl, dpage);
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 	if (error)