freebsd-dev/sys/i386
Alan Cox 9c6a71e4ca Introduce pmap_try_insert_pv_entry(), a function that conditionally creates
a pv entry if the number of entries is below the high water mark for pv
entries.

Use pmap_try_insert_pv_entry() in pmap_copy() instead of
pmap_insert_entry().  This avoids possible recursion on a pmap lock in
get_pv_entry().

Eliminate the explicit low-memory checks in pmap_copy().  The check that
the number of pv entries was below the high water mark was largely
ineffective because it was located in the outer loop rather than the
inner loop where pv entries were allocated.  Instead of checking, we
attempt the allocation and handle the failure.

Reviewed by: tegge
Reported by: kris
MFC after: 5 days
2006-04-02 05:45:05 +00:00
..
acpica If the XSDT address in the RSDP for an ACPI 2.0 machine is NULL, then fall 2006-03-27 15:59:48 +00:00
bios
compile
conf Add kbdmux(4) to GENERIC 2006-03-31 19:03:37 +00:00
cpufreq Add frequency-voltage tables for Intel 778, 758, 773, 753, and 733J 2006-02-25 04:55:38 +00:00
i386 Introduce pmap_try_insert_pv_entry(), a function that conditionally creates 2006-04-02 05:45:05 +00:00
ibcs2
include Use wrapper macros for atomic pointer operations in order to perform the 2006-03-28 14:34:48 +00:00
isa Rework how we wire up interrupt sources to CPUs: 2006-02-28 22:24:55 +00:00
linux regen 2006-03-18 20:49:01 +00:00
pci
svr4
xbox Committed the xbox syscons(8)-able console driver. 2006-03-03 14:52:57 +00:00
Makefile