Date: Thu, 5 Feb 1998 21:14:35 +1100 From: Bruce Evans <bde@zeta.org.au> To: cvs-all@FreeBSD.ORG, cvs-committers@FreeBSD.ORG, cvs-sys@FreeBSD.ORG, dyson@FreeBSD.ORG Subject: Re: cvs commit: src/sys/i386/i386 pmap.c src/sys/i386/include vmparam.h src/sys/kern kern_exec.c kern_malloc.c kern_subr.c vfs_subr.c src/sys/miscfs/specfs spec_vnops.c src/sys/ufs/ufs ufs_readwrite.c src/sys/vm vm_glue.c vm_kern.c vm_map.c ... Message-ID: <199802051014.VAA32440@godzilla.zeta.org.au>
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> Modified files: > sys/i386/i386 pmap.c > sys/i386/include vmparam.h > sys/kern kern_exec.c kern_malloc.c kern_subr.c > vfs_subr.c > sys/miscfs/specfs spec_vnops.c > sys/ufs/ufs ufs_readwrite.c > sys/vm vm_glue.c vm_kern.c vm_map.c vm_object.c > vm_object.h vm_page.c vm_page.h > vm_pageout.c vnode_pager.c > Log: > 1) Start using a cleaner and more consistant page allocator instead > of the various ad-hoc schemes. > 2) When bringing in UPAGES, the pmap code needs to do another vm_page_lookup. > 3) When appropriate, set the PG_A or PG_M bits a-priori to both avoid some > processor errata, and to minimize redundant processor updating of page > tables. > 4) Modify pmap_protect so that it can only remove permissions (as it > originally supported.) The additional capability is not needed. > 5) Streamline read-only to read-write page mappings. > 6) For pmap_copy_page, don't enable write mapping for source page. > 7) Correct and clean-up pmap_incore. > 8) Cluster initial kern_exec pagin. > 9) Removal of some minor lint from kern_malloc. > 10) Correct some ioopt code. > 11) Remove some dead code from the MI swapout routine. > 12) Correct vm_object_deallocate (to remove backing_object ref.) > 13) Fix dead object handling, that had problems under heavy memory load. > 14) Add minor vm_page_lookup improvements. > 15) Some pages are not in objects, and make sure that the vm_page.c can > properly support such pages. > 16) Add some more page deficit handling. > 17) Some minor code readability improvements. Please write relevant log messages. Surely all these changes don't apply to all the files? > Revision Changes Path > 1.182 +141 -121 src/sys/i386/i386/pmap.c > 1.28 +6 -1 src/sys/i386/include/vmparam.h > 1.76 +34 -28 src/sys/kern/kern_exec.c > 1.41 +2 -2 src/sys/kern/kern_malloc.c > 1.18 +3 -2 src/sys/kern/kern_subr.c > 1.129 +6 -5 src/sys/kern/vfs_subr.c > 1.55 +5 -2 src/sys/miscfs/specfs/spec_vnops.c > 1.42 +63 -22 src/sys/ufs/ufs/ufs_readwrite.c > 1.72 +3 -3 src/sys/vm/vm_glue.c > 1.43 +4 -6 src/sys/vm/vm_kern.c > 1.111 +11 -65 src/sys/vm/vm_map.c > 1.111 +19 -12 src/sys/vm/vm_object.c > 1.45 +1 -2 src/sys/vm/vm_object.h Especially for small changes like this, it's much easier to understand the changes by reading the code than by reading an irrelevant log message. Relevant log message: staticized. > 1.91 +94 -19 src/sys/vm/vm_page.c > 1.36 +7 -5 src/sys/vm/vm_page.h > 1.112 +6 -5 src/sys/vm/vm_pageout.c > 1.83 +10 -5 src/sys/vm/vnode_pager.c Bruce
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