/* * Copyright 2015, Cyril Bur, IBM Corp. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include "basic_asm.h" /* long signal_self(pid_t pid, int sig); */ FUNC_START(signal_self) li r0,37 /* sys_kill */ /* r3 already has our pid in it */ /* r4 already has signal type in it */ sc bc 4,3,1f subfze r3,r3 1: blr FUNC_END(signal_self) /* long tm_signal_self(pid_t pid, int sig, int *ret); */ FUNC_START(tm_signal_self) PUSH_BASIC_STACK(8) std r5,STACK_FRAME_PARAM(0)(sp) /* ret */ tbegin. beq 1f tsuspend. li r0,37 /* sys_kill */ /* r3 already has our pid in it */ /* r4 already has signal type in it */ sc ld r5,STACK_FRAME_PARAM(0)(sp) /* ret */ bc 4,3,2f subfze r3,r3 2: std r3,0(r5) tabort. 0 tresume. /* Be nice to some cleanup, jumps back to tbegin then to 1: */ /* * Transaction should be proper doomed and we should never get * here */ li r3,1 POP_BASIC_STACK(8) blr 1: li r3,0 POP_BASIC_STACK(8) blr FUNC_END(tm_signal_self) tion value='nds-private-remove' selected='selected'>nds-private-remove net-next plumbingsTobias Klauser
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authorDan Williams <dan.j.williams@intel.com>2017-02-04 14:47:31 -0800
committerDan Williams <dan.j.williams@intel.com>2017-02-04 14:47:31 -0800
commitbfb34527a32a1a576d9bfb7026d3ab0369a6cd60 (patch)
treedb4d58c52d766eeb0c87cd6dba005839de933ede /drivers/usb/misc/usbtest.c
parente471486c13b82b1338d49c798f78bb62b1ed0a9e (diff)
libnvdimm, pfn: fix memmap reservation size versus 4K alignment
When vmemmap_populate() allocates space for the memmap it does so in 2MB sized chunks. The libnvdimm-pfn driver incorrectly accounts for this when the alignment of the device is set to 4K. When this happens we trigger memory allocation failures in altmap_alloc_block_buf() and trigger warnings of the form: WARNING: CPU: 0 PID: 3376 at arch/x86/mm/init_64.c:656 arch_add_memory+0xe4/0xf0 [..] Call Trace: dump_stack+0x86/0xc3 __warn+0xcb/0xf0 warn_slowpath_null+0x1d/0x20 arch_add_memory+0xe4/0xf0 devm_memremap_pages+0x29b/0x4e0 Fixes: 315c562536c4 ("libnvdimm, pfn: add 'align' attribute, default to HPAGE_SIZE") Cc: <stable@vger.kernel.org> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/usb/misc/usbtest.c')