freebsd-dev/sys/fs
Matthew Dillon 7c58e473f5 Commit the buffer cache cleanup patch to 4.x and 5.x. This patch fixes a
fragmentation problem due to geteblk() reserving too much space for the
    buffer and imposes a larger granularity (16K) on KVA reservations for
    the buffer cache to avoid fragmentation issues.  The buffer cache size
    calculations have been redone to simplify them (fewer defines, better
    comments, less chance of running out of KVA).

    The geteblk() fix solves a performance problem that DG was able reproduce.

    This patch does not completely fix the KVA fragmentation problems, but
    it goes a long way

Mostly Reviewed by: bde and others
Approved by: jkh
2000-03-27 21:29:33 +00:00
..
cd9660 remove check now done in vn_isdisk(). 2000-01-10 12:24:36 +00:00
coda Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 05:07:58 +00:00
deadfs $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
fdescfs Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 05:07:58 +00:00
fifofs Introduce NDFREE (and remove VOP_ABORTOP) 1999-12-15 23:02:35 +00:00
hpfs Give vn_isdisk() a second argument where it can return a suitable errno. 2000-01-10 12:04:27 +00:00
msdosfs Commit the buffer cache cleanup patch to 4.x and 5.x. This patch fixes a 2000-03-27 21:29:33 +00:00
ntfs Remove B_READ, B_WRITE and B_FREEBUF and replace them with a new 2000-03-20 10:44:49 +00:00
nullfs Fix bde'isms in acl/extattr syscall interface, renaming syscalls to 2000-01-19 06:07:34 +00:00
nwfs Remove B_READ, B_WRITE and B_FREEBUF and replace them with a new 2000-03-20 10:44:49 +00:00
portalfs Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 05:07:58 +00:00
procfs Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL" 1999-12-29 05:07:58 +00:00
specfs Rename the existing BUF_STRATEGY() to DEV_STRATEGY() 2000-03-20 11:29:10 +00:00
umapfs Fix bde'isms in acl/extattr syscall interface, renaming syscalls to 2000-01-19 06:07:34 +00:00
unionfs Remove B_READ, B_WRITE and B_FREEBUF and replace them with a new 2000-03-20 10:44:49 +00:00