cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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init.c (1166B)

      1// SPDX-License-Identifier: GPL-2.0
      2/*
      3 * fs-verity module initialization and logging
      4 *
      5 * Copyright 2019 Google LLC
      6 */
      7
      8#include "fsverity_private.h"
      9
     10#include <linux/ratelimit.h>
     11
     12void fsverity_msg(const struct inode *inode, const char *level,
     13		  const char *fmt, ...)
     14{
     15	static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL,
     16				      DEFAULT_RATELIMIT_BURST);
     17	struct va_format vaf;
     18	va_list args;
     19
     20	if (!__ratelimit(&rs))
     21		return;
     22
     23	va_start(args, fmt);
     24	vaf.fmt = fmt;
     25	vaf.va = &args;
     26	if (inode)
     27		printk("%sfs-verity (%s, inode %lu): %pV\n",
     28		       level, inode->i_sb->s_id, inode->i_ino, &vaf);
     29	else
     30		printk("%sfs-verity: %pV\n", level, &vaf);
     31	va_end(args);
     32}
     33
     34static int __init fsverity_init(void)
     35{
     36	int err;
     37
     38	fsverity_check_hash_algs();
     39
     40	err = fsverity_init_info_cache();
     41	if (err)
     42		return err;
     43
     44	err = fsverity_init_workqueue();
     45	if (err)
     46		goto err_exit_info_cache;
     47
     48	err = fsverity_init_signature();
     49	if (err)
     50		goto err_exit_workqueue;
     51
     52	pr_debug("Initialized fs-verity\n");
     53	return 0;
     54
     55err_exit_workqueue:
     56	fsverity_exit_workqueue();
     57err_exit_info_cache:
     58	fsverity_exit_info_cache();
     59	return err;
     60}
     61late_initcall(fsverity_init)