diff options
| author |   kettenis <kettenis@openbsd.org> | 2010-06-29 18:54:35 +0000 |
|---|---|---|
| committer | kettenis <kettenis@openbsd.org> | 2010-06-29 18:54:35 +0000 |
| commit | 8e45210e197c0cd2152894055b649c01a3b3f83c (patch) | |
| tree | a70b67d9a5ee49d1a668c148f7f624df06ad605a | |
| parent | Introduce bufq_quiesce(), which will block I/O ifrom getting on the queues, (diff) | |
| download | wireguard-openbsd-8e45210e197c0cd2152894055b649c01a3b3f83c.tar.xz wireguard-openbsd-8e45210e197c0cd2152894055b649c01a3b3f83c.zip | |
Call bufq_quiesce() on suspend to stop all I/O and bufq_restart on resume.
Makes suspend/resume work much better while doing disk I/O.
ok mlarkin@
| -rw-r--r-- | sys/dev/acpi/acpi.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/dev/acpi/acpi.c b/sys/dev/acpi/acpi.c index 7557d7fb735..2073ec98762 100644 --- a/sys/dev/acpi/acpi.c +++ b/sys/dev/acpi/acpi.c @@ -1,4 +1,4 @@ -/* $OpenBSD: acpi.c,v 1.161 2010/06/29 04:05:23 tedu Exp $ */ +/* $OpenBSD: acpi.c,v 1.162 2010/06/29 18:54:35 kettenis Exp $ */ /* * Copyright (c) 2005 Thorsten Lockert <tholo@sigmasoft.com> * Copyright (c) 2005 Jordan Hargrave <jordan@openbsd.org> @@ -18,6 +18,7 @@ #include <sys/param.h> #include <sys/systm.h> +#include <sys/buf.h> #include <sys/device.h> #include <sys/malloc.h> #include <sys/fcntl.h> @@ -1978,6 +1979,8 @@ acpi_resume(struct acpi_softc *sc, int state) acpi_record_event(sc, APM_NORMAL_RESUME); + bufq_restart(); + #if NWSDISPLAY > 0 wsdisplay_resume(); #endif /* NWSDISPLAY > 0 */ @@ -2066,6 +2069,8 @@ acpi_prepare_sleep_state(struct acpi_softc *sc, int state) wsdisplay_suspend(); #endif /* NWSDISPLAY > 0 */ + bufq_quiesce(); + acpi_saved_spl = splhigh(); disable_intr(); cold = 1; @@ -2105,10 +2110,13 @@ acpi_prepare_sleep_state(struct acpi_softc *sc, int state) acpi_susp_resume_gpewalk(sc, state, 1); fail: + bufq_restart(); + #if NWSDISPLAY > 0 if (error) wsdisplay_resume(); #endif /* NWSDISPLAY > 0 */ + return (error); } |