/* * Copyright (C) 2012 Red Hat. All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License v2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this program; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 021110-1307, USA. */ struct rcu_string { struct rcu_head rcu; char str[0]; }; static inline struct rcu_string *rcu_string_strdup(const char *src, gfp_t mask) { size_t len = strlen(src) + 1; struct rcu_string *ret = kzalloc(sizeof(struct rcu_string) + (len * sizeof(char)), mask); if (!ret) return ret; strncpy(ret->str, src, len); return ret; } static inline void rcu_string_free(struct rcu_string *str) { if (str) kfree_rcu(str, rcu); } #define printk_in_rcu(fmt, ...) do { \ rcu_read_lock(); \ printk(fmt, __VA_ARGS__); \ rcu_read_unlock(); \ } while (0) #define printk_ratelimited_in_rcu(fmt, ...) do { \ rcu_read_lock(); \ printk_ratelimited(fmt, __VA_ARGS__); \ rcu_read_unlock(); \ } while (0) #define rcu_str_deref(rcu_str) ({ \ struct rcu_string *__str = rcu_dereference(rcu_str); \ __str->str; \ }) href='/cgit.cgi/linux/net-next.git/'>summaryrefslogtreecommitdiff
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authorReza Arbab <arbab@linux.vnet.ibm.com>2017-01-03 14:39:51 -0600
committerMichael Ellerman <mpe@ellerman.id.au>2017-01-17 10:05:43 +1100
commit32b53c012e0bfe20b2745962a89db0dc72ef3270 (patch)
tree4f6d713c1b48f508bdfe0bd802204aba11a40ec5 /include/net/vsock_addr.h
parent49def1853334396f948dcb4cedb9347abb318df5 (diff)
powerpc/mm: Fix memory hotplug BUG() on radix
Memory hotplug is leading to hash page table calls, even on radix: arch_add_memory create_section_mapping htab_bolt_mapping BUG_ON(!ppc_md.hpte_insert); To fix, refactor {create,remove}_section_mapping() into hash__ and radix__ variants. Leave the radix versions stubbed for now. Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'include/net/vsock_addr.h')