Module Name: src
Committed By: dyoung
Date: Fri Apr 30 21:17:22 UTC 2010
Modified Files:
src/sys/kern: subr_autoconf.c
Log Message:
IPL_VM is the highest interrupt priority where alldevs is read/written,
and acquiring alldevs_mtx already blocks those interrupts, so delete the
splhigh()/splx() in config_alldevs_lock()/_unlock().
Release alldevs_mtx while freeing memory with kmem_free(9); according to
new documentation, kmem_free(9) can sleep! :-) Thanks to rmind@ for the
tip.
Next step: use finer-grained locking, probably by adding a mutex to
cfdriver_t.
And after that: make sure that all threads of execution are out of the
device_t and/or softc before releasing their memory.
To generate a diff of this commit:
cvs rdiff -u -r1.205 -r1.206 src/sys/kern/subr_autoconf.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
