#ifndef _RDS_INFO_H #define _RDS_INFO_H struct rds_info_lengths { unsigned int nr; unsigned int each; }; struct rds_info_iterator; /* * These functions must fill in the fields of @lens to reflect the size * of the available info source. If the snapshot fits in @len then it * should be copied using @iter. The caller will deduce if it was copied * or not by comparing the lengths. */ typedef void (*rds_info_func)(struct socket *sock, unsigned int len, struct rds_info_iterator *iter, struct rds_info_lengths *lens); void rds_info_register_func(int optname, rds_info_func func); void rds_info_deregister_func(int optname, rds_info_func func); int rds_info_getsockopt(struct socket *sock, int optname, char __user *optval, int __user *optlen); void rds_info_copy(struct rds_info_iterator *iter, void *data, unsigned long bytes); void rds_info_iter_unmap(struct rds_info_iterator *iter); #endif rm method='get'> net-next plumbingsTobias Klauser
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 09:37:34 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 21:47:58 +0100
commit0becc0ae5b42828785b589f686725ff5bc3b9b25 (patch)
treebe6d0e1f37c38ed0a7dd5da2d4b1e93f0fb43101 /sound/usb/usx2y/usx2yhwdeppcm.c
parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
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>
Diffstat (limited to 'sound/usb/usx2y/usx2yhwdeppcm.c')