{"id":2219328,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2219328/?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":"<20260402205534.224141-3-pvorel@suse.cz>","date":"2026-04-02T20:55:34","name":"[v2,2/2] pidns32: fix PID namespace nesting depth off-by-one","commit_ref":null,"pull_url":null,"state":"needs-review-ack","archived":false,"hash":"f77996b0e32c0cf2d224d0c915ddb41c23248ca9","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/20260402205534.224141-3-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/2219328/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=3RmZIuYV;\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=u7bnAY3U;\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=rNN8N/1c;\n\tdkim=neutral header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=4KCtnzhI;\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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TO_DN_SOME(0.00)[];\n TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[];\n FROM_EQ_ENVFROM(0.00)[];\n DKIM_SIGNED(0.00)[suse.cz:s=susede2_rsa,suse.cz:s=susede2_ed25519];\n FUZZY_RATELIMITED(0.00)[rspamd.com]; RCPT_COUNT_FIVE(0.00)[5];\n DBL_BLOCKED_OPENRESOLVER(0.00)[suse.com:email,suse.cz:mid,suse.cz:email,imap1.dmz-prg2.suse.org:helo];\n RCVD_TLS_ALL(0.00)[]","X-Spam-Score":"-6.80","X-Spam-Level":"","X-Spam-Status":"No, score=0.1 required=7.0 tests=DKIM_SIGNED,DKIM_VALID,\n DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS shortcircuit=no\n autolearn=disabled version=4.0.1","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on in-3.smtp.seeweb.it","X-Virus-Scanned":"clamav-milter 1.0.9 at in-3.smtp.seeweb.it","X-Virus-Status":"Clean","Subject":"[LTP] [PATCH v2 2/2] pidns32: fix PID namespace nesting depth\n off-by-one","X-BeenThere":"ltp@lists.linux.it","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"Linux Test Project ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Cc":"Vasileios Almpanis ","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it","Sender":"\"ltp\" "},"content":"From: Vasileios Almpanis \n\nThe 2023 refactor used tst_atomic_inc() before clone with a zero-initial\ncounter, which only performed 31 CLONE_NEWPID nests while still expecting\nMAXNEST (32). Use tst_atomic_return_add() so the shared counter runs\n0..32 and the chain reaches 32 nested namespaces again.\n\nFixes: 647cfd468c3b (\"Refactor pidns32 test using new LTP API\")\nReviewed-by: Andrea Cervesato \nReviewed-by: Petr Vorel \nReviewed-by: Cyril Hrubis \nSigned-off-by: Vasileios Almpanis \n[ pvorel: use tst_atomic_return_add() ]\nSigned-off-by: Petr Vorel \n---\nv1: https://lore.kernel.org/ltp/20260330100750.858390-1-vasileios.almpanis@virtuozzo.com/\n\n testcases/kernel/containers/pidns/pidns32.c | 4 ++--\n 1 file changed, 2 insertions(+), 2 deletions(-)","diff":"diff --git a/testcases/kernel/containers/pidns/pidns32.c b/testcases/kernel/containers/pidns/pidns32.c\nindex fc9bf0aaa0..2a9e2827fc 100644\n--- a/testcases/kernel/containers/pidns/pidns32.c\n+++ b/testcases/kernel/containers/pidns/pidns32.c\n@@ -27,7 +27,7 @@ static pid_t child_func(void)\n {\n \tpid_t cpid = 0;\n \n-\tif (tst_atomic_inc(level) == MAXNEST)\n+\tif (tst_atomic_return_add(1, level) == MAXNEST)\n \t\treturn cpid;\n \n \tcpid = SAFE_CLONE(&args);\n@@ -58,7 +58,7 @@ static void run(void)\n \tif (!child_func())\n \t\treturn;\n \n-\tTST_EXP_EQ_LI(*level, MAXNEST);\n+\tTST_EXP_EQ_LI(*level-1, MAXNEST);\n }\n \n static struct tst_test test = {\n","prefixes":["v2","2/2"]}