fs/xfs/xfs_message.c

Source file repositories/reference/linux-study-clean/fs/xfs/xfs_message.c

File Facts

System
Linux kernel
Corpus path
fs/xfs/xfs_message.c
Extension
.c
Size
2984 bytes
Lines
161
Domain
Core OS
Bucket
VFS And Filesystem Core
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2011 Red Hat, Inc.  All Rights Reserved.
 */

#include "xfs_platform.h"
#include "xfs_fs.h"
#include "xfs_error.h"
#include "xfs_shared.h"
#include "xfs_format.h"
#include "xfs_trans_resv.h"
#include "xfs_mount.h"

/*
 * XFS logging functions
 */
static void
__xfs_printk(
	const char		*level,
	const struct xfs_mount	*mp,
	struct va_format	*vaf)
{
	if (mp && mp->m_super) {
		printk("%sXFS (%s): %pV\n", level, mp->m_super->s_id, vaf);
		return;
	}
	printk("%sXFS: %pV\n", level, vaf);
}

void
xfs_printk_level(
	const char *kern_level,
	const struct xfs_mount *mp,
	const char *fmt, ...)
{
	struct va_format	vaf;
	va_list			args;
	int			level;

	va_start(args, fmt);
	vaf.fmt = fmt;
	vaf.va = &args;

	__xfs_printk(kern_level, mp, &vaf);

	va_end(args);

	if (!kstrtoint(kern_level, 0, &level) &&
	    level <= LOGLEVEL_ERR &&
	    xfs_error_level >= XFS_ERRLEVEL_HIGH)
		xfs_stack_trace();
}

void
_xfs_alert_tag(
	const struct xfs_mount	*mp,
	uint32_t		panic_tag,
	const char		*fmt, ...)
{
	struct va_format	vaf;
	va_list			args;
	int			do_panic = 0;

	if (xfs_panic_mask && (xfs_panic_mask & panic_tag)) {
		xfs_alert(mp, "Transforming an alert into a BUG.");
		do_panic = 1;
	}

	va_start(args, fmt);

	vaf.fmt = fmt;
	vaf.va = &args;

	__xfs_printk(KERN_ALERT, mp, &vaf);
	va_end(args);

	BUG_ON(do_panic);
}

void
asswarn(
	struct xfs_mount	*mp,
	char			*expr,
	char			*file,
	int			line)
{
	xfs_warn(mp, "Assertion failed: %s, file: %s, line: %d",
		expr, file, line);
	WARN_ON(1);
}

Annotation

Implementation Notes