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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2011 Red Hat, Inc. All Rights Reserved.
*/
#include "xfs.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);
}
void
assfail(
struct xfs_mount *mp,
char *expr,
char *file,
int line)
{
xfs_emerg(mp, "Assertion failed: %s, file: %s, line: %d",
expr, file, line);
if (xfs_globals.bug_on_assert)
BUG();
else
WARN_ON(1);
}
void
xfs_hex_dump(const void *p, int length)
{
print_hex_dump(KERN_ALERT, "", DUMP_PREFIX_OFFSET, 16, 1, p, length, 1);
}
void
xfs_buf_alert_ratelimited(
struct xfs_buf *bp,
const char *rlmsg,
const char *fmt,
...)
{
struct xfs_mount *mp = bp->b_mount;
struct va_format vaf;
va_list args;
/* use the more aggressive per-target rate limit for buffers */
if (!___ratelimit(&bp->b_target->bt_ioerror_rl, rlmsg))
return;
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
__xfs_printk(KERN_ALERT, mp, &vaf);
va_end(args);
}
void
xfs_warn_experimental(
struct xfs_mount *mp,
enum xfs_experimental_feat feat)
{
static const struct {
const char *name;
long opstate;
} features[] = {
[XFS_EXPERIMENTAL_PNFS] = {
.opstate = XFS_OPSTATE_WARNED_PNFS,
.name = "pNFS",
},
[XFS_EXPERIMENTAL_SCRUB] = {
.opstate = XFS_OPSTATE_WARNED_SCRUB,
.name = "online scrub",
},
[XFS_EXPERIMENTAL_SHRINK] = {
.opstate = XFS_OPSTATE_WARNED_SHRINK,
.name = "online shrink",
},
[XFS_EXPERIMENTAL_LARP] = {
.opstate = XFS_OPSTATE_WARNED_LARP,
.name = "logged extended attributes",
},
[XFS_EXPERIMENTAL_LBS] = {
.opstate = XFS_OPSTATE_WARNED_LBS,
.name = "large block size",
},
[XFS_EXPERIMENTAL_EXCHRANGE] = {
.opstate = XFS_OPSTATE_WARNED_EXCHRANGE,
.name = "exchange range",
},
[XFS_EXPERIMENTAL_PPTR] = {
.opstate = XFS_OPSTATE_WARNED_PPTR,
.name = "parent pointer",
},
[XFS_EXPERIMENTAL_METADIR] = {
.opstate = XFS_OPSTATE_WARNED_METADIR,
.name = "metadata directory tree",
},
};
ASSERT(feat >= 0 && feat < XFS_EXPERIMENTAL_MAX);
BUILD_BUG_ON(ARRAY_SIZE(features) != XFS_EXPERIMENTAL_MAX);
if (xfs_should_warn(mp, features[feat].opstate))
xfs_warn(mp,
"EXPERIMENTAL %s feature enabled. Use at your own risk!",
features[feat].name);
}
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