Module Name: src
Committed By: dyoung
Date: Tue Apr 27 23:33:14 UTC 2010
Modified Files:
src/sys/arch/x86/pci: pci_machdep.c
Log Message:
Make pci_conf_read(9) and pci_conf_write(9) re-entrant so that the
kernel can use them in an NMI trap handler. Only one CPU can be
in _read() or _write() at once. However, on any single CPU, more
than one thread of execution (LWP, interrupt handler, trap handler)
may be in _read() or _write() at once, because each thread saves
and restores the PCI configuration-access state.
To generate a diff of this commit:
cvs rdiff -u -r1.41 -r1.42 src/sys/arch/x86/pci/pci_machdep.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
