From: Kirill Tkhai <[email protected]> This converts ve-absolute-monotonic time to global-absolute-monotonic time.
https://jira.sw.ru/browse/PSBM-14471 diff-futex-reference-ct-monotonic-clock-from-ct-start Signed-off-by: Konstantin Khlebnikov <[email protected]> Signed-off-by: Kirill Tkhai <[email protected]> (cherry picked from vz7 commit 14a4db52ee8c862eb7a9dec740b15c646e0b59aa) Signed-off-by: Konstantin Khorenko <[email protected]> (cherry-picked from vz8 commit 9b7182b8c953 ("ve/futex/timeout: adjust futex timeout to absolule")) Signed-off-by: Nikita Yushchenko <[email protected]> --- kernel/futex.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/kernel/futex.c b/kernel/futex.c index 2ecb07575055..1c2e9aa57bbe 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -39,6 +39,7 @@ #include <linux/memblock.h> #include <linux/fault-inject.h> #include <linux/time_namespace.h> +#include <linux/ve.h> #include <asm/futex.h> @@ -3700,6 +3701,7 @@ long do_futex(u32 __user *uaddr, int op, u32 val, ktime_t *timeout, { int cmd = op & FUTEX_CMD_MASK; unsigned int flags = 0; + ktime_t abs_time; if (!(op & FUTEX_PRIVATE_FLAG)) flags |= FLAGS_SHARED; @@ -3709,6 +3711,12 @@ long do_futex(u32 __user *uaddr, int op, u32 val, ktime_t *timeout, if (cmd != FUTEX_WAIT_BITSET && cmd != FUTEX_WAIT_REQUEUE_PI && cmd != FUTEX_LOCK_PI2) return -ENOSYS; + } else if (timeout) { + if (cmd == FUTEX_WAIT_BITSET || cmd == FUTEX_WAIT_REQUEUE_PI) { + abs_time = ktime_add(*timeout, ns_to_ktime( + get_exec_env()->start_time)); + timeout = &abs_time; + } } switch (cmd) { -- 2.30.2 _______________________________________________ Devel mailing list [email protected] https://lists.openvz.org/mailman/listinfo/devel
