David Greenman f6b04d2bfb Changes from John Dyson and myself: ... Fixed remaining known bugs in the buffer IO and VM system. vfs_bio.c: Fixed some race conditions and locking bugs. Improved performance by removing some (now) unnecessary code and fixing some broken logic. Fixed process accounting of # of FS outputs. Properly handle NFS interrupts (B_EINTR). (various) Replaced calls to clrbuf() with calls to an optimized routine called vfs_bio_clrbuf(). (various FS sync) Sync out modified vnode_pager backed pages. ffs_vnops.c: Do two passes: Sync out file data first, then indirect blocks. vm_fault.c: Fixed deadly embrace caused by acquiring locks in the wrong order. vnode_pager.c: Changed to use buffer I/O system for writing out modified pages. This should fix the problem with the modification date previous not getting updated. Also dramatically simplifies the code. Note that this is going to change in the future and be implemented via VOP_PUTPAGES(). vm_object.c: Fixed a pile of bugs related to cleaning (vnode) objects. The performance of vm_object_page_clean() is terrible when dealing with huge objects, but this will change when we implement a binary tree to keep the object pages sorted. vm_pageout.c: Fixed broken clustering of pageouts. Fixed race conditions and other lockup style bugs in the scanning of pages. Improved performance.		1995-04-09 06:03:56 +00:00
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cd9660	Readdir on a CDrom would return bogus "d_type" values, potentially confusing	1995-03-28 07:46:38 +00:00
deadfs	Cosmetics: added a #include and a static prototype to silence gcc.	1994-10-08 22:37:00 +00:00
fdescfs	Add and move declarations to fix all of the warnings from `gcc -Wimplicit'	1995-03-28 07:58:53 +00:00
fifofs	Add and move declarations to fix all of the warnings from `gcc -Wimplicit'	1995-03-16 18:17:34 +00:00
msdosfs	Fix timestamps when using Wall CMOS clock,	1995-03-29 18:48:06 +00:00
nullfs	Removed redundant newlines that were in some panic strings.	1995-03-19 14:29:26 +00:00
portalfs	Add and move declarations to fix all of the warnings from `gcc -Wimplicit'	1995-03-28 07:58:53 +00:00
procfs	Add four more filesystem flags:	1995-03-16 20:23:48 +00:00
specfs	Changes from John Dyson and myself:	1995-04-09 06:03:56 +00:00
umapfs	Removed redundant newlines that were in some panic strings.	1995-03-19 14:29:26 +00:00
unionfs	Add four more filesystem flags:	1995-03-16 20:23:48 +00:00