116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* General netfs cache on cache files internal defs
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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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#ifdef pr_fmt
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#undef pr_fmt
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#endif
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#define pr_fmt(fmt) "CacheFiles: " fmt
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#include <linux/fscache-cache.h>
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#include <linux/cred.h>
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#include <linux/security.h>
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/*
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* Debug tracing.
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*/
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extern unsigned cachefiles_debug;
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#define CACHEFILES_DEBUG_KENTER 1
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#define CACHEFILES_DEBUG_KLEAVE 2
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#define CACHEFILES_DEBUG_KDEBUG 4
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#define dbgprintk(FMT, ...) \
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printk(KERN_DEBUG "[%-6.6s] "FMT"\n", current->comm, ##__VA_ARGS__)
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#define kenter(FMT, ...) dbgprintk("==> %s("FMT")", __func__, ##__VA_ARGS__)
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#define kleave(FMT, ...) dbgprintk("<== %s()"FMT"", __func__, ##__VA_ARGS__)
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#define kdebug(FMT, ...) dbgprintk(FMT, ##__VA_ARGS__)
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#if defined(__KDEBUG)
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#define _enter(FMT, ...) kenter(FMT, ##__VA_ARGS__)
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#define _leave(FMT, ...) kleave(FMT, ##__VA_ARGS__)
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#define _debug(FMT, ...) kdebug(FMT, ##__VA_ARGS__)
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#elif defined(CONFIG_CACHEFILES_DEBUG)
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#define _enter(FMT, ...) \
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do { \
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if (cachefiles_debug & CACHEFILES_DEBUG_KENTER) \
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kenter(FMT, ##__VA_ARGS__); \
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} while (0)
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#define _leave(FMT, ...) \
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do { \
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if (cachefiles_debug & CACHEFILES_DEBUG_KLEAVE) \
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kleave(FMT, ##__VA_ARGS__); \
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} while (0)
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#define _debug(FMT, ...) \
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do { \
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if (cachefiles_debug & CACHEFILES_DEBUG_KDEBUG) \
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kdebug(FMT, ##__VA_ARGS__); \
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} while (0)
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#else
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#define _enter(FMT, ...) no_printk("==> %s("FMT")", __func__, ##__VA_ARGS__)
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#define _leave(FMT, ...) no_printk("<== %s()"FMT"", __func__, ##__VA_ARGS__)
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#define _debug(FMT, ...) no_printk(FMT, ##__VA_ARGS__)
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#endif
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#if 1 /* defined(__KDEBUGALL) */
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#define ASSERT(X) \
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do { \
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if (unlikely(!(X))) { \
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pr_err("\n"); \
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pr_err("Assertion failed\n"); \
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BUG(); \
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} \
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} while (0)
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#define ASSERTCMP(X, OP, Y) \
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do { \
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if (unlikely(!((X) OP (Y)))) { \
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pr_err("\n"); \
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pr_err("Assertion failed\n"); \
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pr_err("%lx " #OP " %lx is false\n", \
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(unsigned long)(X), (unsigned long)(Y)); \
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BUG(); \
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} \
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} while (0)
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#define ASSERTIF(C, X) \
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do { \
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if (unlikely((C) && !(X))) { \
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pr_err("\n"); \
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pr_err("Assertion failed\n"); \
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BUG(); \
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} \
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} while (0)
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#define ASSERTIFCMP(C, X, OP, Y) \
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do { \
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if (unlikely((C) && !((X) OP (Y)))) { \
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pr_err("\n"); \
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pr_err("Assertion failed\n"); \
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pr_err("%lx " #OP " %lx is false\n", \
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(unsigned long)(X), (unsigned long)(Y)); \
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BUG(); \
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} \
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} while (0)
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#else
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#define ASSERT(X) do {} while (0)
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#define ASSERTCMP(X, OP, Y) do {} while (0)
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#define ASSERTIF(C, X) do {} while (0)
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#define ASSERTIFCMP(C, X, OP, Y) do {} while (0)
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#endif
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