mirror of
https://github.com/versity/scoutfs.git
synced 2026-02-08 11:40:08 +00:00
a546bd0aab
The message formatter adds a newline so callers don't have to. But sometimes they do and we get double newlines. Add a build check that the format string doesn't end in a newline so that we stop adding these. And fix up all the current offenders. Signed-off-by: Zach Brown <zab@versity.com>
134 lines
2.9 KiB
C
134 lines
2.9 KiB
C
/*
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* Copyright (C) 2017 Versity Software, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/types.h>
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#include <linux/slab.h>
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#include <linux/debugfs.h>
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#include <linux/parser.h>
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#include <linux/inet.h>
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#include <linux/string.h>
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#include <linux/in.h>
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#include "msg.h"
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#include "options.h"
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#include "super.h"
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static const match_table_t tokens = {
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{Opt_uniq_name, "uniq_name=%s"},
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{Opt_err, NULL}
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};
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struct options_sb_info {
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struct dentry *debugfs_dir;
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u32 btree_force_tiny_blocks;
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};
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u32 scoutfs_option_u32(struct super_block *sb, int token)
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{
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struct scoutfs_sb_info *sbi = SCOUTFS_SB(sb);
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struct options_sb_info *osi = sbi->options;
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switch(token) {
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case Opt_btree_force_tiny_blocks:
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return osi->btree_force_tiny_blocks;
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}
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WARN_ON_ONCE(1);
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return 0;
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}
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int scoutfs_parse_options(struct super_block *sb, char *options,
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struct mount_options *parsed)
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{
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substring_t args[MAX_OPT_ARGS];
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int token, len;
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char *p;
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/* Set defaults */
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memset(parsed, 0, sizeof(*parsed));
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while ((p = strsep(&options, ",")) != NULL) {
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if (!*p)
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continue;
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token = match_token(p, tokens, args);
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switch (token) {
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case Opt_uniq_name:
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len = match_strlcpy(parsed->uniq_name, args,
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SCOUTFS_UNIQUE_NAME_MAX_BYTES);
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if (len == 0 || len > SCOUTFS_UNIQUE_NAME_MAX_BYTES)
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return -EINVAL;
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break;
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default:
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scoutfs_err(sb, "Unknown or malformed option, \"%s\"",
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p);
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break;
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}
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}
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if (parsed->uniq_name[0] == '\0') {
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scoutfs_err(sb, "must provide a uniq_name option");
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return -EINVAL;
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}
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return 0;
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}
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int scoutfs_options_setup(struct super_block *sb)
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{
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struct scoutfs_sb_info *sbi = SCOUTFS_SB(sb);
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struct options_sb_info *osi;
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int ret;
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osi = kzalloc(sizeof(struct options_sb_info), GFP_KERNEL);
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if (!osi)
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return -ENOMEM;
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sbi->options = osi;
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osi->debugfs_dir = debugfs_create_dir("options", sbi->debug_root);
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if (!osi->debugfs_dir) {
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ret = -ENOMEM;
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goto out;
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}
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if (!debugfs_create_bool("btree_force_tiny_blocks", 0644,
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osi->debugfs_dir,
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&osi->btree_force_tiny_blocks)) {
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ret = -ENOMEM;
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goto out;
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}
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ret = 0;
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out:
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if (ret)
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scoutfs_options_destroy(sb);
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return ret;
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}
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void scoutfs_options_destroy(struct super_block *sb)
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{
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struct scoutfs_sb_info *sbi = SCOUTFS_SB(sb);
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struct options_sb_info *osi = sbi->options;
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if (osi) {
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if (osi->debugfs_dir)
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debugfs_remove_recursive(osi->debugfs_dir);
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kfree(osi);
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sbi->options = NULL;
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}
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}
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