pk 70f20a1217 Replace the traditional buffer memory management -- based on fixed per buffer ... virtual memory reservation and a private pool of memory pages -- by a scheme based on memory pools. This allows better utilization of memory because buffers can now be allocated with a granularity finer than the system's native page size (useful for filesystems with e.g. 1k or 2k fragment sizes). It also avoids fragmentation of virtual to physical memory mappings (due to the former fixed virtual address reservation) resulting in better utilization of MMU resources on some platforms. Finally, the scheme is more flexible by allowing run-time decisions on the amount of memory to be used for buffers. On the other hand, the effectiveness of the LRU queue for buffer recycling may be somewhat reduced compared to the traditional method since, due to the nature of the pool based memory allocation, the actual least recently used buffer may release its memory to a pool different from the one needed by a newly allocated buffer. However, this effect will kick in only if the system is under memory pressure.		2003-12-30 12:33:13 +00:00
..
arm	Work-around an obscure bug (reported by a couple of people, and reproduced	2003-12-15 09:27:18 +00:00
arm32	Replace the traditional buffer memory management -- based on fixed per buffer	2003-12-30 12:33:13 +00:00
conf	Change reference at bottom from sys/dev/majors to sys/conf/majors to match	2003-12-10 02:04:00 +00:00
footbridge	Rename dsrtc to ds1687rtc to avoid conflicting with the MI i2c	2003-10-21 08:15:39 +00:00
fpe-arm	Merge the nathanw_sa branch.	2003-01-17 21:55:23 +00:00
include	The last cpsr_all change was misguided. Just use cpsr_c wherever possible.	2003-12-15 09:18:21 +00:00
iomd	speaker_ctl() is optional, and vidcaudio_speaker_ctl() did nothing, so kill it.	2003-12-29 16:49:31 +00:00
ixp12x0	Spell address with two d's. Inspired by similar changes in OpenBSD,	2003-11-10 08:51:51 +00:00
mainbus	Fix the ARM mainbus version of bus_space_subregion() to correctly shift the	2003-12-06 22:05:33 +00:00
ofw	Enable/Restore alignment fault state on interrupt handler entry/exit.	2003-11-05 21:10:59 +00:00
s3c2xx0	add a function to initialize variables used by splfoo().	2003-12-17 13:20:04 +00:00
sa11x0	Enable/Restore alignment fault state on interrupt handler entry/exit.	2003-11-05 21:10:59 +00:00
xscale	Correct masks for PCIXSR decomposition	2003-12-19 10:08:11 +00:00
Makefile	…