#ifndef __XFS_MESSAGE_H
#define __XFS_MESSAGE_H 1
struct xfs_mount;
extern __printf(2, 3)
void xfs_emerg(const struct xfs_mount *mp, const char *fmt, ...);
extern __printf(2, 3)
void xfs_alert(const struct xfs_mount *mp, const char *fmt, ...);
extern __printf(3, 4)
void xfs_alert_tag(const struct xfs_mount *mp, int tag, const char *fmt, ...);
extern __printf(2, 3)
void xfs_crit(const struct xfs_mount *mp, const char *fmt, ...);
extern __printf(2, 3)
void xfs_err(const struct xfs_mount *mp, const char *fmt, ...);
extern __printf(2, 3)
void xfs_warn(const struct xfs_mount *mp, const char *fmt, ...);
extern __printf(2, 3)
void xfs_notice(const struct xfs_mount *mp, const char *fmt, ...);
extern __printf(2, 3)
void xfs_info(const struct xfs_mount *mp, const char *fmt, ...);
#ifdef DEBUG
extern __printf(2, 3)
void xfs_debug(const struct xfs_mount *mp, const char *fmt, ...);
#else
static inline __printf(2, 3)
void xfs_debug(const struct xfs_mount *mp, const char *fmt, ...)
{
}
#endif
#define xfs_printk_ratelimited(func, dev, fmt, ...) \
do { \
static DEFINE_RATELIMIT_STATE(_rs, \
DEFAULT_RATELIMIT_INTERVAL, \
DEFAULT_RATELIMIT_BURST); \
if (__ratelimit(&_rs)) \
func(dev, fmt, ##__VA_ARGS__); \
} while (0)
#define xfs_emerg_ratelimited(dev, fmt, ...) \
xfs_printk_ratelimited(xfs_emerg, dev, fmt, ##__VA_ARGS__)
#define xfs_alert_ratelimited(dev, fmt, ...) \
xfs_printk_ratelimited(xfs_alert, dev, fmt, ##__VA_ARGS__)
#define xfs_crit_ratelimited(dev, fmt, ...) \
xfs_printk_ratelimited(xfs_crit, dev, fmt, ##__VA_ARGS__)
#define xfs_err_ratelimited(dev, fmt, ...) \
xfs_printk_ratelimited(xfs_err, dev, fmt, ##__VA_ARGS__)
#define xfs_warn_ratelimited(dev, fmt, ...) \
xfs_printk_ratelimited(xfs_warn, dev, fmt, ##__VA_ARGS__)
#define xfs_notice_ratelimited(dev, fmt, ...) \
xfs_printk_ratelimited(xfs_notice, dev, fmt, ##__VA_ARGS__)
#define xfs_info_ratelimited(dev, fmt, ...) \
xfs_printk_ratelimited(xfs_info, dev, fmt, ##__VA_ARGS__)
#define xfs_debug_ratelimited(dev, fmt, ...) \
xfs_printk_ratelimited(xfs_debug, dev, fmt, ##__VA_ARGS__)
extern void assfail(char *expr, char *f, int l);
extern void asswarn(char *expr, char *f, int l);
extern void xfs_hex_dump(void *p, int length);
#endif /* __XFS_MESSAGE_H */
/a>|
|
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the
BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is
started by the CMCI logic before the MCE CPU hotplug callback starts the
timer with add_timer_on(). So the timer is already queued which triggers
the BUG.
Using add_timer_on() is pretty pointless in this code because the timer is
strictlty per CPU, initialized as pinned and all operations which arm the
timer happen on the CPU to which the timer belongs.
Simplify the whole machinery by using mod_timer() instead of add_timer_on()
which avoids the problem because mod_timer() can handle already queued
timers. Use __start_timer() everywhere so the earliest armed expiry time is
preserved.
Reported-by: Erik Veijola <erik.veijola@intel.com>
Tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Tony Luck <tony.luck@intel.com>
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>