src/sys/vm/vnode_pager.c, branch release/4.1.1

MFC: pmap interface optimizations, optionally physically backed SYSVSHM.

2000-08-04T22:31:11Z

MFC: various minor spelling fixes

2000-08-02T22:04:31Z

useracc() the prequel:

1999-10-29T18:09:36Z

Merge the contents (less some trivial bordering the silly comments) of and into . This puts the #defines for the vm_inherit_t and vm_prot_t types next to their typedefs. This paves the road for the commit to follow shortly: change useracc() to use VM_PROT_{READ|WRITE} rather than B_{READ|WRITE} as argument.

The vnode pager (used when you do file-backed mmaps) must use the

1999-09-17T05:17:59Z

underlying physical sector size when aligning I/O transfer sizes. It cannot assume 512 bytes. We assume the underlying sector size is a power of 2. If it isn't, mmap() will break badly anyway (in the same way mmap broke with NFS when NFS tried to cache piecemeal write ranges in buffers, before we enforced read-buffer-before-write-piecemeal for NFS). Reviewed by: Alan Cox , David Greenman

$Id$ -> $FreeBSD$

1999-08-28T01:08:13Z

Add the (inline) function vm_page_undirty for clearing the dirty bitmask

1999-08-17T04:02:34Z

of a vm_page. Use it. Submitted by: dillon

Fix some int/long printf problems for the Alpha

1999-07-01T19:53:43Z

Convert buffer locking from using the B_BUSY and B_WANTED flags to using

1999-06-26T02:47:16Z

lockmgr locks. This commit should be functionally equivalent to the old semantics. That is, all buffer locking is done with LK_EXCLUSIVE requests. Changes to take advantage of LK_SHARED and LK_RECURSIVE will be done in future commits.

Fix confusion of size of transfer with size of the pager.

1999-05-15T23:42:39Z

PR: 11658 Broken in: 1.89 (1998/03/07)

remove b_proc from struct buf, it's (now) unused.

1999-05-06T20:00:34Z

Reviewed by: dillon, bde