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freebsd-dev/sys/vm
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Alan Cox 806453645a Two changes to vm_fault_additional_pages(): 
1. Rewrite the backward scan.  Specifically, reverse the order in which
   pages are allocated so that upon failure it is never necessary to
   free pages that were just allocated.  Moreover, any allocated pages
   can be put to use.  This makes the backward scan behave just like the
   forward scan.

2. Eliminate an explicit, unsynchronized check for low memory before
   calling vm_page_alloc().  It serves no useful purpose.  It is, in
   effect, optimizing the uncommon case at the expense of the common
   case.

Approved by:	re (hrs)
MFC after:	3 weeks
2007-07-20 06:55:11 +00:00
..
default_pager.c
device_pager.c Replace PG_BUSY with VPO_BUSY. In other words, changes to the page's 2006-10-22 04:28:14 +00:00
memguard.c Improve memguard a bit: 2005-12-30 11:45:07 +00:00
memguard.h Improve memguard a bit: 2005-12-30 11:45:07 +00:00
phys_pager.c Minor typo fix, noticed while I was going through *_pager.c files. 2007-04-10 12:34:51 +00:00
pmap.h Complete the transition from pmap_page_protect() to pmap_remove_write(). 2006-08-01 19:06:06 +00:00
redzone.c Add buffer corruption protection (RedZone) for kernel's malloc(9). 2006-01-31 11:09:21 +00:00
redzone.h Add buffer corruption protection (RedZone) for kernel's malloc(9). 2006-01-31 11:09:21 +00:00
swap_pager.c Eliminate GIANT_REQUIRED from swap_pager_putpages(). 2007-06-24 18:40:30 +00:00
swap_pager.h - Move 'struct swdevt' back into swap_pager.h and expose it to userland. 2007-02-07 17:43:11 +00:00
uma_core.c Revert VMCNT_* operations introduction. 2007-05-31 22:52:15 +00:00
uma_dbg.c Improve canonicalization of copyrights. Order copyrights by order of 2005-07-16 09:51:52 +00:00
uma_dbg.h Improve canonicalization of copyrights. Order copyrights by order of 2005-07-16 09:51:52 +00:00
uma_int.h Update stale comment on protecting UMA per-CPU caches: we now use 2007-05-09 22:53:34 +00:00
uma.h Add uma_set_align() interface, which will be called at most once during 2007-02-11 20:13:52 +00:00
vm_contig.c Enable the new physical memory allocator. 2007-06-16 04:57:06 +00:00
vm_extern.h Close race between vmspace_exitfree() and exit1() and races between 2006-05-29 21:28:56 +00:00
vm_fault.c Two changes to vm_fault_additional_pages(): 2007-07-20 06:55:11 +00:00
vm_glue.c Commit 14/14 of sched_lock decomposition. 2007-06-05 00:00:57 +00:00
vm_init.c Add the vm.exec_map_entries tunable and read-only sysctl, which controls 2005-04-25 19:22:05 +00:00
vm_kern.c When KVA is exhausted, try the vm_lowmem event for the last time before 2007-04-05 20:52:51 +00:00
vm_kern.h The clean_map has been made local to vm_init.c long ago. 2006-11-20 16:23:34 +00:00
vm_map.c Revert VMCNT_* operations introduction. 2007-05-31 22:52:15 +00:00
vm_map.h Close race between vmspace_exitfree() and exit1() and races between 2006-05-29 21:28:56 +00:00
vm_meter.c Eliminate dead code. 2007-07-12 22:23:28 +00:00
vm_mmap.c Add freebsd6_ wrappers for mmap/lseek/pread/pwrite/truncate/ftruncate 2007-07-04 22:57:21 +00:00
vm_object.c Enable the new physical memory allocator. 2007-06-16 04:57:06 +00:00
vm_object.h Eliminate OBJ_WRITEABLE. It hasn't been used in a long time. 2006-07-21 06:40:29 +00:00
vm_page.c Eliminate two unused functions: vm_phys_alloc_pages() and 2007-07-14 21:21:17 +00:00
vm_page.h Update a comment describing the page queues. 2007-07-13 04:42:20 +00:00
vm_pageout.c In the previous revision, when I replaced the unconditional acquisition 2007-07-02 06:56:37 +00:00
vm_pageout.h
vm_pageq.c Enable the new physical memory allocator. 2007-06-16 04:57:06 +00:00
vm_pager.c Normalize a significant number of kernel malloc type names: 2005-10-31 15:41:29 +00:00
vm_pager.h Update some comments to reflect the change from spl-based to lock-based 2005-05-18 22:08:52 +00:00
vm_param.h Correct two comments. 2007-04-19 04:52:47 +00:00
vm_phys.c Eliminate two unused functions: vm_phys_alloc_pages() and 2007-07-14 21:21:17 +00:00
vm_phys.h Eliminate two unused functions: vm_phys_alloc_pages() and 2007-07-14 21:21:17 +00:00
vm_unix.c
vm_zeroidle.c Eliminate dead code, specifically, an unused sysctl: "vm.idlezero_maxrun". 2007-07-14 19:00:44 +00:00
vm.h Retire debug.mpsafevm. None of the architectures supported in CVS require 2006-07-21 23:22:49 +00:00
vnode_pager.c Do proper "locking" for missing vmmeters part. 2007-06-04 21:45:18 +00:00
vnode_pager.h Move the body of vop_stdcreatevobject() over to the vnode_pager under 2005-01-24 21:21:59 +00:00