#ifndef __TOOLS_ASM_GENERIC_ATOMIC_H #define __TOOLS_ASM_GENERIC_ATOMIC_H #include #include /* * Atomic operations that C can't guarantee us. Useful for * resource counting etc.. * * Excerpts obtained from the Linux kernel sources. */ #define ATOMIC_INIT(i) { (i) } /** * atomic_read - read atomic variable * @v: pointer of type atomic_t * * Atomically reads the value of @v. */ static inline int atomic_read(const atomic_t *v) { return ACCESS_ONCE((v)->counter); } /** * atomic_set - set atomic variable * @v: pointer of type atomic_t * @i: required value * * Atomically sets the value of @v to @i. */ static inline void atomic_set(atomic_t *v, int i) { v->counter = i; } /** * atomic_inc - increment atomic variable * @v: pointer of type atomic_t * * Atomically increments @v by 1. */ static inline void atomic_inc(atomic_t *v) { __sync_add_and_fetch(&v->counter, 1); } /** * atomic_dec_and_test - decrement and test * @v: pointer of type atomic_t * * Atomically decrements @v by 1 and * returns true if the result is 0, or false for all other * cases. */ static inline int atomic_dec_and_test(atomic_t *v) { return __sync_sub_and_fetch(&v->counter, 1) == 0; } #endif /* __TOOLS_ASM_GENERIC_ATOMIC_H */ mp-back net-next plumbingsTobias Klauser
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authorHarsh Jain <harsh@chelsio.com>2017-02-01 21:10:28 +0530
committerHerbert Xu <herbert@gondor.apana.org.au>2017-02-03 17:45:48 +0800
commit0b529f143e8baad441a5aac9ad55ec2434d8fb46 (patch)
treefd816e548e12745d4776ad0bd661bec142d3ea06 /net/ceph/msgpool.c
parentc26819900036f5b91608051a0fc7c76f6b4ffc7b (diff)
crypto: algif_aead - Fix kernel panic on list_del
Kernel panics when userspace program try to access AEAD interface. Remove node from Linked List before freeing its memory. Cc: <stable@vger.kernel.org> Signed-off-by: Harsh Jain <harsh@chelsio.com> Reviewed-by: Stephan Müller <smueller@chronox.de> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'net/ceph/msgpool.c')