/* * 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; \ }) s'> summaryrefslogtreecommitdiff
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-08 09:56:15 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-08 09:56:15 -0800
commit23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b (patch)
tree4aff32d5f2f6fe2f54028bfd4d1b66fdd2f8d281 /include/net/xfrm.h
parent926af6273fc683cd98cd0ce7bf0d04a02eed6742 (diff)
parenteeeefd41843218c55a8782a6920f044d9bf6207a (diff)
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fix from Jens Axboe: "A single fix that should go into 4.10, fixing a regression on some devices with the WRITE_SAME command" * 'for-linus' of git://git.kernel.dk/linux-block: block: don't try Write Same from __blkdev_issue_zeroout
Diffstat (limited to 'include/net/xfrm.h')