On Thu, Jun 21, 2007 at 10:50:37PM +0000, Nate Lawson wrote: > njl 2007-06-21 22:50:37 UTC > > FreeBSD src repository > > Modified files: > etc devd.conf rc.suspend rc.resume > sys/i386/acpica acpi_machdep.c > usr.sbin/acpi/acpiconf acpiconf.c > sys/dev/acpica acpi.c acpiio.h acpivar.h > Log: > Update the suspend/resume user API while maintaining backwards compat. > > Improvements: > * /dev/apm is clonable, allowing multiple listeners for suspend events. Did you evaluate/tested destroy_dev_sched() KPI for your needs ?
I do not see any protection for several opens going parallel on given cdev. I.e., I think that si_drv1 assignment in open() could cause problems. Generally, as I know, system does not enforce any serialization between calls to cdev methods for mp-safe drivers.
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