freebsd-nq/sys/i386
Alan Cox 0a752e9843 Prevent the unexpected deallocation of a page table page while performing
pmap_copy().  This entails additional locking in pmap_copy() and the
addition of a "flags" parameter to the page table page allocator for
specifying whether it may sleep when memory is unavailable.  (Already,
pmap_copy() checks the availability of memory, aborting if it is scarce.
In theory, another CPU could, however, allocate memory between
pmap_copy()'s check and the call to the page table page allocator,
causing the current thread to release its locks and sleep.  This change
makes this scenario impossible.)

Reviewed by: tegge@
2004-09-29 19:20:40 +00:00
..
acpica Be sure to always unlock the sx lock when exiting the sysctl function. 2004-08-24 17:53:25 +00:00
bios Clarify SDT feature word bits. 2004-08-31 21:51:51 +00:00
compile
conf PAE seems to work for isp- at least under mimimal testing. 2004-09-23 05:26:19 +00:00
cpufreq o Fix whitespace bug introduced in the previous commit. 2004-08-23 10:09:29 +00:00
i386 Prevent the unexpected deallocation of a page table page while performing 2004-09-29 19:20:40 +00:00
ibcs2 Regenerate after fcntl() wrappers were marked MP safe. 2004-08-24 20:24:34 +00:00
include Prevent the unexpected deallocation of a page table page while performing 2004-09-29 19:20:40 +00:00
isa Add new a function isa_dma_init() which returns an errno when it fails 2004-09-15 12:09:50 +00:00
linux Regen. 2004-09-06 09:33:30 +00:00
pci Consistently use __inline instead of __inline__ as the former is an empty macro 2004-07-04 16:11:03 +00:00
svr4 Attempt to make the proper changes here for the proc.h commit: 2004-01-05 00:29:00 +00:00
Makefile This commit adds basic support for the UFS2 filesystem. The UFS2 2002-06-21 06:18:05 +00:00