[{"id":3676446,"web_url":"http://patchwork.ozlabs.org/comment/3676446/","msgid":"<CAE1O6mgFhsT0XP33=8Ji5dJPS5d27Oz8A74wWckcDX0c4LVHxQ@mail.gmail.com>","list_archive_url":null,"date":"2026-04-13T04:33:08","subject":"Re: [LTP] [PATCH v2] close: add test for double close EBADF","submitter":{"id":74427,"url":"http://patchwork.ozlabs.org/api/people/74427/","name":"Li Wang","email":"wangli.ahau@gmail.com"},"content":"On Sat, 11 Apr 2026 at 19:04, Jinseok Kim <always.starving0@gmail.com> wrote:\n>\n> Verify that calling close() on an already closed file descriptor fails\n> with EBADF.\n>\n> This test adds coverage for a common state transition case where a\n> previously valid file descriptor becomes invalid after close().\n>\n> Signed-off-by: Jinseok Kim <always.starving0@gmail.com>\n> ---\n> Changes in v2:\n> - Add additional test coverage to close02 instead of creating a separate\n>   close03 test.\n> - Link to v1: https://lore.kernel.org/ltp/20260406133134.17238-2-always.starving0@gmail.com\n> ---\n>  testcases/kernel/syscalls/close/close02.c | 42 ++++++++++++++++++++---\n>  1 file changed, 38 insertions(+), 4 deletions(-)\n>\n> diff --git a/testcases/kernel/syscalls/close/close02.c b/testcases/kernel/syscalls/close/close02.c\n> index 617c48237..768361e56 100644\n> --- a/testcases/kernel/syscalls/close/close02.c\n> +++ b/testcases/kernel/syscalls/close/close02.c\n> @@ -5,17 +5,51 @@\n>   */\n>\n>  /*\\\n> - * Call close(-1) and expects it to return EBADF.\n> + * Verify :manpage:`close(2)` failure cases:\n> + *\n> + * 1) close(-1) returns EBADF.\n> + * 2) closing the same fd twice returns EBADF on the second call.\n>   */\n>\n>  #include <errno.h>\n> +#include <fcntl.h>\n> +\n>  #include \"tst_test.h\"\n>\n> -static void run(void)\n> +enum case_type {\n> +       INVALID_FD,\n> +       DOUBLE_CLOSE,\n> +};\n> +\n> +static struct tcase {\n> +       const char *desc;\n> +       enum case_type type;\n> +} tcases[] = {\n> +       { \"close(-1)\", INVALID_FD },\n> +       { \"close same fd twice\", DOUBLE_CLOSE },\n> +};\n> +\n> +static void verify_close(unsigned int i)\n>  {\n> -       TST_EXP_FAIL(close(-1), EBADF);\n> +       int fd;\n> +       struct tcase *tc = &tcases[i];\n> +\n> +       switch (tc->type) {\n> +       case INVALID_FD:\n> +               TST_EXP_FAIL(close(-1), EBADF, \"%s\", tc->desc);\n> +               break;\n> +\n> +       case DOUBLE_CLOSE:\n> +               fd = SAFE_OPEN(\"close02\", O_CREAT, 0600);\n\nAccording to the open(2) man page, the flags argument must include one\nof the access modes: O_RDONLY, O_WRONLY, or O_RDWR.\n\nFor example:\n\n  fd = SAFE_OPEN(\"close02\", O_CREAT | O_RDWR, 0600);\n\nWith the flag updated to include an access mode (like O_RDWR),\nit will look good to me:\n\nReviewed-by: Li Wang <wangli.ahau@gmail.com>","headers":{"Return-Path":"<ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it>","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\" (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=qrkCTpmj;\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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Sun, 12 Apr 2026\n 21:33:21 -0700 (PDT)","MIME-Version":"1.0","References":"<20260409081546.GB96667@pevik>\n <20260411110405.7330-1-always.starving0@gmail.com>","In-Reply-To":"<20260411110405.7330-1-always.starving0@gmail.com>","From":"Li Wang <wangli.ahau@gmail.com>","Date":"Mon, 13 Apr 2026 12:33:08 +0800","X-Gm-Features":"AQROBzCQrB2-BxYXzicRzSVGBtzM2E-bxth4Q3cYMdl8BffDVxyCszQdUtkvxoY","Message-ID":"\n <CAE1O6mgFhsT0XP33=8Ji5dJPS5d27Oz8A74wWckcDX0c4LVHxQ@mail.gmail.com>","To":"Jinseok Kim <always.starving0@gmail.com>","X-Spam-Status":"No, score=0.3 required=7.0 tests=DKIM_SIGNED,DKIM_VALID,\n DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,\n SPF_HELO_NONE,SPF_PASS shortcircuit=no autolearn=disabled version=4.0.1","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on in-6.smtp.seeweb.it","X-Virus-Scanned":"clamav-milter 1.0.9 at in-6.smtp.seeweb.it","X-Virus-Status":"Clean","Subject":"Re: [LTP] [PATCH v2] close: add test for double close EBADF","X-BeenThere":"ltp@lists.linux.it","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"Linux Test Project <ltp.lists.linux.it>","List-Unsubscribe":"<https://lists.linux.it/options/ltp>,\n <mailto:ltp-request@lists.linux.it?subject=unsubscribe>","List-Archive":"<http://lists.linux.it/pipermail/ltp/>","List-Post":"<mailto:ltp@lists.linux.it>","List-Help":"<mailto:ltp-request@lists.linux.it?subject=help>","List-Subscribe":"<https://lists.linux.it/listinfo/ltp>,\n <mailto:ltp-request@lists.linux.it?subject=subscribe>","Cc":"ltp@lists.linux.it","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it","Sender":"\"ltp\" <ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it>"}},{"id":3676665,"web_url":"http://patchwork.ozlabs.org/comment/3676665/","msgid":"<20260413113002.GB219073@pevik>","list_archive_url":null,"date":"2026-04-13T11:30:02","subject":"Re: [LTP] [PATCH v2] close: add test for double close EBADF","submitter":{"id":70792,"url":"http://patchwork.ozlabs.org/api/people/70792/","name":"Petr Vorel","email":"pvorel@suse.cz"},"content":"Hi all,\n\n...\n> > +static void verify_close(unsigned int i)\n> >  {\n> > -       TST_EXP_FAIL(close(-1), EBADF);\n> > +       int fd;\n> > +       struct tcase *tc = &tcases[i];\n> > +\n> > +       switch (tc->type) {\n> > +       case INVALID_FD:\n> > +               TST_EXP_FAIL(close(-1), EBADF, \"%s\", tc->desc);\n> > +               break;\n> > +\n> > +       case DOUBLE_CLOSE:\n> > +               fd = SAFE_OPEN(\"close02\", O_CREAT, 0600);\n\n> According to the open(2) man page, the flags argument must include one\n> of the access modes: O_RDONLY, O_WRONLY, or O_RDWR.\n\nGood catch, Li.\n\n> For example:\n\n>   fd = SAFE_OPEN(\"close02\", O_CREAT | O_RDWR, 0600);\n\n> With the flag updated to include an access mode (like O_RDWR),\n> it will look good to me:\n\n> Reviewed-by: Li Wang <wangli.ahau@gmail.com>\n\nAgree.\nReviewed-by: Petr Vorel <pvorel@suse.cz>\n\nAnd welcome back. Feel free to update .mailmap to the new address.\n\nKind regards,\nPetr","headers":{"Return-Path":"<ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it>","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=a8F11dIK;\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=96YYNDlR;\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=a8F11dIK;\n\tdkim=neutral header.d=suse.cz header.i=@suse.cz header.a=ed25519-sha256\n header.s=susede2_ed25519 header.b=96YYNDlR;\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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