48 lines
1.0 KiB
C
48 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* FS-Cache statistics viewing interface
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*
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* Copyright (C) 2021 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*/
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#define FSCACHE_DEBUG_LEVEL CACHE
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#include <linux/module.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include "internal.h"
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/*
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* Add files to /proc/fs/netfs/.
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*/
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int __init fscache_proc_init(void)
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{
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if (!proc_symlink("fs/fscache", NULL, "netfs"))
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goto error_sym;
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if (!proc_create_seq("fs/netfs/caches", S_IFREG | 0444, NULL,
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&fscache_caches_seq_ops))
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goto error;
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if (!proc_create_seq("fs/netfs/volumes", S_IFREG | 0444, NULL,
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&fscache_volumes_seq_ops))
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goto error;
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if (!proc_create_seq("fs/netfs/cookies", S_IFREG | 0444, NULL,
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&fscache_cookies_seq_ops))
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goto error;
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return 0;
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error:
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remove_proc_entry("fs/fscache", NULL);
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error_sym:
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return -ENOMEM;
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}
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/*
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* Clean up the /proc/fs/fscache symlink.
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*/
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void fscache_proc_cleanup(void)
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{
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remove_proc_subtree("fs/fscache", NULL);
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}
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