{"id":2219327,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2219327/?format=json","project":{"id":59,"url":"http://patchwork.ozlabs.org/api/1.0/projects/59/?format=json","name":"Linux Test Project development","link_name":"ltp","list_id":"ltp.lists.linux.it","list_email":"ltp@lists.linux.it","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260402205534.224141-2-pvorel@suse.cz>","date":"2026-04-02T20:55:33","name":"[v2,1/2] tst_atomic: Add tst_atomic_return_add()","commit_ref":null,"pull_url":null,"state":"needs-review-ack","archived":false,"hash":"43416865138da415b87a884388bc30bad013a62b","submitter":{"id":70792,"url":"http://patchwork.ozlabs.org/api/1.0/people/70792/?format=json","name":"Petr Vorel","email":"pvorel@suse.cz"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/ltp/patch/20260402205534.224141-2-pvorel@suse.cz/mbox/","series":[{"id":498553,"url":"http://patchwork.ozlabs.org/api/1.0/series/498553/?format=json","date":"2026-04-02T20:55:32","name":"pidns32: fix PID namespace nesting depth off-by-one","version":2,"mbox":"http://patchwork.ozlabs.org/series/498553/mbox/"}],"check":"success","checks":"http://patchwork.ozlabs.org/api/patches/2219327/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","ltp@lists.linux.it"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","ltp@picard.linux.it"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key;\n unprotected) header.d=suse.cz header.i=@suse.cz header.a=rsa-sha256\n header.s=susede2_rsa header.b=UwIvP7CP;\n\tdkim=fail reason=\"signature verification failed\" header.d=suse.cz\n header.i=@suse.cz header.a=ed25519-sha256 header.s=susede2_ed25519\n header.b=SdncbBWx;\n\tdkim=fail reason=\"signature verification failed\" (1024-bit key)\n header.d=suse.cz header.i=@suse.cz header.a=rsa-sha256 header.s=susede2_rsa\n header.b=UwIvP7CP;\n\tdkim=neutral header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=SdncbBWx;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it\n (client-ip=2001:1418:10:5::2; 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charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it","Sender":"\"ltp\" "},"content":"Combine atomic loading and adding.\n\nSuggested-by: Cyril Hrubis \nSigned-off-by: Petr Vorel \n---\nhttps://lore.kernel.org/ltp/acqLzcXEo0uU0aSD@yuki.lan/\n\n include/tst_atomic.h | 10 ++++++++++\n 1 file changed, 10 insertions(+)","diff":"diff --git a/include/tst_atomic.h b/include/tst_atomic.h\nindex 9d255bc448..196399db31 100644\n--- a/include/tst_atomic.h\n+++ b/include/tst_atomic.h\n@@ -30,6 +30,11 @@ static inline void tst_atomic_store(int32_t i, tst_atomic_t *v)\n \t__atomic_store_n(v, i, __ATOMIC_SEQ_CST);\n }\n \n+static inline int tst_atomic_return_add(int32_t i, tst_atomic_t *v)\n+{\n+\treturn __atomic_fetch_add(v, i, __ATOMIC_SEQ_CST);\n+}\n+\n #elif HAVE_SYNC_ADD_AND_FETCH == 1\n \n /* Use __sync built-ins (GCC >= 4.1), with explicit memory barriers. */\n@@ -56,6 +61,11 @@ static inline void tst_atomic_store(int32_t i, tst_atomic_t *v)\n \t__sync_synchronize();\n }\n \n+static inline int tst_atomic_return_add(int32_t i, tst_atomic_t *v)\n+{\n+\treturn __sync_fetch_and_add(v, i);\n+}\n+\n #else\n # error \"Your compiler does not support atomic operations (__atomic or __sync)\"\n #endif\n","prefixes":["v2","1/2"]}