diff options
author | Mark Brown <broonie@kernel.org> | 2020-12-11 17:47:55 +0000 |
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committer | Mark Brown <broonie@kernel.org> | 2020-12-11 17:47:55 +0000 |
commit | 031616c434db05ce766f76c62865f55698e0924f (patch) | |
tree | 7f29aa1ff3e7b51a8058cd570fb785c6e769b245 /arch/um/kernel/time.c | |
parent | 064841ccfc49b2315dc0b797239862d3a343aa07 (diff) | |
parent | 85a7555575a0e48f9b73db310d0d762a08a46d63 (diff) |
Merge remote-tracking branch 'asoc/for-5.10' into asoc-linus
Diffstat (limited to 'arch/um/kernel/time.c')
-rw-r--r-- | arch/um/kernel/time.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c index 25eaa6a0c658..3d109ff3309b 100644 --- a/arch/um/kernel/time.c +++ b/arch/um/kernel/time.c @@ -70,13 +70,17 @@ static void time_travel_handle_message(struct um_timetravel_msg *msg, * read of the message and write of the ACK. */ if (mode != TTMH_READ) { + bool disabled = irqs_disabled(); + + BUG_ON(mode == TTMH_IDLE && !disabled); + + if (disabled) + local_irq_enable(); while (os_poll(1, &time_travel_ext_fd) != 0) { - if (mode == TTMH_IDLE) { - BUG_ON(!irqs_disabled()); - local_irq_enable(); - local_irq_disable(); - } + /* nothing */ } + if (disabled) + local_irq_disable(); } ret = os_read_file(time_travel_ext_fd, msg, sizeof(*msg)); @@ -102,6 +106,7 @@ static void time_travel_handle_message(struct um_timetravel_msg *msg, break; } + resp.seq = msg->seq; os_write_file(time_travel_ext_fd, &resp, sizeof(resp)); } |