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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2021-06-16 09:50:53 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2021-06-22 12:09:52 -0300
commit1faff2701163c76bad9bce76d644d13bce3e290a (patch)
tree27d56b94a5ce7fe6ce8f8807702be9d8a708aea8 /rt
parente9e912d3349d8caf3c40bc09370509724c72ac2f (diff)
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linux: Only use 64-bit syscall if required for mq_timedsend
For !__ASSUME_TIME64_SYSCALLS there is no need to issue a 64-bit syscall if the provided timeout fits in a 32-bit one. The 64-bit usage should be rare since the timeout is a relative one. Checked on i686-linux-gnu on a 4.15 kernel and on a 5.11 kernel (with and without --enable-kernel=5.1) and on x86_64-linux-gnu. Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'rt')
-rw-r--r--rt/tst-mqueue10.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/rt/tst-mqueue10.c b/rt/tst-mqueue10.c
index 7fb53a1..1879580 100644
--- a/rt/tst-mqueue10.c
+++ b/rt/tst-mqueue10.c
@@ -54,6 +54,16 @@ do_test (void)
support_delete_timer (timer);
}
+ {
+ timer_t timer = support_create_timer (0, 100000000, false, NULL);
+ /* Fill the internal buffer first. */
+ TEST_COMPARE (mq_timedsend (q, msg, sizeof (msg), 0,
+ &(struct timespec) { 0, 0 }), 0);
+ TEST_COMPARE (mq_timedsend (q, msg, sizeof (msg), 0, &ts), -1);
+ TEST_VERIFY (errno == EINTR || errno == EOVERFLOW);
+ support_delete_timer (timer);
+ }
+
mq_unlink (name);
return 0;