From mboxrd@z Thu Jan 1 00:00:00 1970 From: Cyril Hrubis Date: Fri, 6 Mar 2020 13:47:49 +0100 Subject: [LTP] [PATCH V5 02/10] lapi/fsmount.h: Add fsopen_supported_by_kernel() In-Reply-To: <21026a48ffa25ed8b09616cb939dc417459d2d74.1582779464.git.viresh.kumar@linaro.org> References: <21026a48ffa25ed8b09616cb939dc417459d2d74.1582779464.git.viresh.kumar@linaro.org> Message-ID: <20200306124749.GB3375@rei.lan> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ltp@lists.linux.it On Thu, Feb 27, 2020 at 10:44:30AM +0530, Viresh Kumar wrote: > Add a helper to check if the fsmount() related syscalls are supported by > the kernel or not. > > Reviewed-by: Petr Vorel > Acked-by: Li Wang > Signed-off-by: Viresh Kumar > --- > include/lapi/fsmount.h | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/include/lapi/fsmount.h b/include/lapi/fsmount.h > index 87f2f229c371..a6a24904e66d 100644 > --- a/include/lapi/fsmount.h > +++ b/include/lapi/fsmount.h > @@ -130,5 +130,14 @@ enum fsconfig_command { > > #endif /* OPEN_TREE_CLONE */ > > +void fsopen_supported_by_kernel(void) > +{ > + if ((tst_kvercmp(5, 2, 0)) < 0) { > + /* Check if the syscall is backported on an older kernel */ > + TEST(syscall(__NR_fsopen, NULL, 0)); > + if (TST_RET == -1 && TST_ERR == ENOSYS) > + tst_brk(TCONF, "Test not supported on kernel version < v5.2"); Shouldn't we close the TST_RET here? > + } > +} > > #endif /* FSMOUNT_H__ */ > -- > 2.21.0.rc0.269.g1a574e7a288b > -- Cyril Hrubis chrubis@suse.cz