Revision a25fddced835ae53d18eb4bddabd719b4cebf624 authored by Miaohe Lin on 24 February 2021, 20:10:14 UTC, committed by Linus Torvalds on 24 February 2021, 21:38:35 UTC
The calculation 1U << (h->order + PAGE_SHIFT - 10) is actually equal to (PAGE_SHIFT << (h->order)) >> 10. So we can make it more readable by replace it with huge_page_size(h) >> 10. Link: https://lkml.kernel.org/r/20210122083141.24548-1-linmiaohe@huawei.com Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 88ce3fe
internal.h
/*
* Copyright (c) 2010 Wang Lei
* Author(s): Wang Lei (wang840925@gmail.com). All Rights Reserved.
*
* Internal DNS Rsolver stuff
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/sched.h>
/*
* Layout of key payload words.
*/
enum {
dns_key_data,
dns_key_error,
};
/*
* dns_key.c
*/
extern const struct cred *dns_resolver_cache;
/*
* debug tracing
*/
extern unsigned int dns_resolver_debug;
#define kdebug(FMT, ...) \
do { \
if (unlikely(dns_resolver_debug)) \
printk(KERN_DEBUG "[%-6.6s] "FMT"\n", \
current->comm, ##__VA_ARGS__); \
} while (0)
#define kenter(FMT, ...) kdebug("==> %s("FMT")", __func__, ##__VA_ARGS__)
#define kleave(FMT, ...) kdebug("<== %s()"FMT"", __func__, ##__VA_ARGS__)
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