a2d88671f4
Changes in 4.9.268 net/sctp: fix race condition in sctp_destroy_sock Input: nspire-keypad - enable interrupts only when opened dmaengine: dw: Make it dependent to HAS_IOMEM ARM: dts: Fix moving mmc devices with aliases for omap4 & 5 arc: kernel: Return -EFAULT if copy_to_user() fails neighbour: Disregard DEAD dst in neigh_update ARM: keystone: fix integer overflow warning ASoC: fsl_esai: Fix TDM slot setup for I2S mode net: ieee802154: stop dump llsec keys for monitors net: ieee802154: stop dump llsec devs for monitors net: ieee802154: forbid monitor for add llsec dev net: ieee802154: stop dump llsec devkeys for monitors net: ieee802154: forbid monitor for add llsec devkey net: ieee802154: stop dump llsec seclevels for monitors net: ieee802154: forbid monitor for add llsec seclevel pcnet32: Use pci_resource_len to validate PCI resource Input: i8042 - fix Pegatron C15B ID entry scsi: libsas: Reset num_scatter if libata marks qc as NODATA net: davicom: Fix regulator not turned off on failed probe net: sit: Unregister catch-all devices i40e: fix the panic when running bpf in xdpdrv mode ARM: 9071/1: uprobes: Don't hook on thumb instructions usbip: Fix incorrect double assignment to udc->ud.tcp_rx usbip: add sysfs_lock to synchronize sysfs code paths usbip: stub-dev synchronize sysfs code paths usbip: vudc synchronize sysfs code paths usbip: synchronize event handler with sysfs code paths net: hso: fix null-ptr-deref during tty device unregistration ext4: correct error label in ext4_rename() HID: alps: fix error return code in alps_input_configured() ARM: dts: Fix swapped mmc order for omap3 s390/entry: save the caller of psw_idle xen-netback: Check for hotplug-status existence before watching cavium/liquidio: Fix duplicate argument ia64: fix discontig.c section mismatches ia64: tools: remove duplicate definition of ia64_mf() on ia64 x86/crash: Fix crash_setup_memmap_entries() out-of-bounds access net: hso: fix NULL-deref on disconnect regression Linux 4.9.268 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ib96fd01f51f6388cf8fa9f7e44507526738e4fe9
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/*
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* Copied from the kernel sources to tools/:
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*
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* Memory barrier definitions. This is based on information published
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* in the Processor Abstraction Layer and the System Abstraction Layer
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* manual.
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*
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* Copyright (C) 1998-2003 Hewlett-Packard Co
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* David Mosberger-Tang <davidm@hpl.hp.com>
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* Copyright (C) 1999 Asit Mallick <asit.k.mallick@intel.com>
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* Copyright (C) 1999 Don Dugger <don.dugger@intel.com>
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*/
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#ifndef _TOOLS_LINUX_ASM_IA64_BARRIER_H
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#define _TOOLS_LINUX_ASM_IA64_BARRIER_H
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#include <linux/compiler.h>
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/*
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* Macros to force memory ordering. In these descriptions, "previous"
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* and "subsequent" refer to program order; "visible" means that all
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* architecturally visible effects of a memory access have occurred
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* (at a minimum, this means the memory has been read or written).
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*
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* wmb(): Guarantees that all preceding stores to memory-
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* like regions are visible before any subsequent
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* stores and that all following stores will be
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* visible only after all previous stores.
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* rmb(): Like wmb(), but for reads.
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* mb(): wmb()/rmb() combo, i.e., all previous memory
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* accesses are visible before all subsequent
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* accesses and vice versa. This is also known as
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* a "fence."
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*
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* Note: "mb()" and its variants cannot be used as a fence to order
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* accesses to memory mapped I/O registers. For that, mf.a needs to
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* be used. However, we don't want to always use mf.a because (a)
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* it's (presumably) much slower than mf and (b) mf.a is supported for
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* sequential memory pages only.
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*/
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#define mb() ia64_mf()
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#define rmb() mb()
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#define wmb() mb()
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#endif /* _TOOLS_LINUX_ASM_IA64_BARRIER_H */
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