/* * Atmel SFR (Special Function Registers) register offsets and bit definitions. * * Copyright (C) 2016 Atmel * * Author: Ludovic Desroches * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef _LINUX_MFD_SYSCON_ATMEL_SFR_H #define _LINUX_MFD_SYSCON_ATMEL_SFR_H #define AT91_SFR_DDRCFG 0x04 /* DDR Configuration Register */ /* 0x08 ~ 0x0c: Reserved */ #define AT91_SFR_OHCIICR 0x10 /* OHCI INT Configuration Register */ #define AT91_SFR_OHCIISR 0x14 /* OHCI INT Status Register */ #define AT91_SFR_I2SCLKSEL 0x90 /* I2SC Register */ /* Field definitions */ #define AT91_OHCIICR_SUSPEND_A BIT(8) #define AT91_OHCIICR_SUSPEND_B BIT(9) #define AT91_OHCIICR_SUSPEND_C BIT(10) #define AT91_OHCIICR_USB_SUSPEND (AT91_OHCIICR_SUSPEND_A | \ AT91_OHCIICR_SUSPEND_B | \ AT91_OHCIICR_SUSPEND_C) #endif /* _LINUX_MFD_SYSCON_ATMEL_SFR_H */ .submit();'> 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 /fs/xfs/libxfs/xfs_da_btree.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 'fs/xfs/libxfs/xfs_da_btree.c')