add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/fs/ubifs/misc.h
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@@ -1,20 +1,8 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * This file is part of UBIFS.
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  *
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  * Copyright (C) 2006-2008 Nokia Corporation
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2 as published by
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- * the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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- *
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- * You should have received a copy of the GNU General Public License along with
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- * this program; if not, write to the Free Software Foundation, Inc., 51
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- * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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  *
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  * Authors: Artem Bityutskiy (Битюцкий Артём)
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  *          Adrian Hunter
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@@ -133,7 +121,7 @@
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  * ubifs_wbuf_sync - synchronize write-buffer.
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  * @wbuf: write-buffer to synchronize
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  *
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- * This is the same as as 'ubifs_wbuf_sync_nolock()' but it does not assume
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+ * This is the same as 'ubifs_wbuf_sync_nolock()' but it does not assume
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  * that the write-buffer is already locked.
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  */
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 static inline int ubifs_wbuf_sync(struct ubifs_wbuf *wbuf)
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@@ -197,7 +185,8 @@
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  */
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 static inline int ubifs_idx_node_sz(const struct ubifs_info *c, int child_cnt)
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 {
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-	return UBIFS_IDX_NODE_SZ + (UBIFS_BRANCH_SZ + c->key_len) * child_cnt;
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+	return UBIFS_IDX_NODE_SZ + (UBIFS_BRANCH_SZ + c->key_len + c->hash_len)
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+				   * child_cnt;
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 }
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 /**
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 				      int bnum)
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 {
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 	return (struct ubifs_branch *)((void *)idx->branches +
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-				       (UBIFS_BRANCH_SZ + c->key_len) * bnum);
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+			(UBIFS_BRANCH_SZ + c->key_len + c->hash_len) * bnum);
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 }
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 /**
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 	return lnum;
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 }
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+static inline int ubifs_xattr_max_cnt(struct ubifs_info *c)
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+{
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+	int max_xattrs = (c->leb_size / 2) / UBIFS_INO_NODE_SZ;
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+
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+	ubifs_assert(c, max_xattrs < c->max_orphans);
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+	return max_xattrs;
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+}
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+
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 const char *ubifs_assert_action_name(struct ubifs_info *c);
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 #endif /* __UBIFS_MISC_H__ */