Alan Cox beb3c3a9c5 Retire VM_PROT_READ_IS_EXEC. It was intended to be a micro-optimization, ... but I see no benefit from it today. VM_PROT_READ_IS_EXEC was only intended for use on processors that do not distinguish between read and execute permission. On an mmap(2) or mprotect(2), it automatically added execute permission if the caller specified permissions included read permission. The hope was that this would reduce the number of vm map entries needed to implement an address space because there would be fewer neighboring vm map entries that differed only in the presence or absence of VM_PROT_EXECUTE. (See vm/vm_mmap.c revision 1.56.) Today, I don't see any real applications that benefit from VM_PROT_READ_IS_EXEC. In any case, vm map entries are now organized as a self-adjusting binary search tree instead of an ordered list. So, the need for coalescing vm map entries is not as great as it once was.		2009-04-04 23:12:14 +00:00
..
default_pager.c
device_pager.c
memguard.c
memguard.h
phys_pager.c
pmap.h
redzone.c
redzone.h
swap_pager.c	Eliminate stale comments.	2009-02-20 16:19:34 +00:00
swap_pager.h
uma_core.c	- Make the keg abstraction more complete. Permit a zone to have multiple	2009-01-25 09:11:24 +00:00
uma_dbg.c	- Make the keg abstraction more complete. Permit a zone to have multiple	2009-01-25 09:11:24 +00:00
uma_dbg.h
uma_int.h	- Make the keg abstraction more complete. Permit a zone to have multiple	2009-01-25 09:11:24 +00:00
uma.h	- Make the keg abstraction more complete. Permit a zone to have multiple	2009-01-25 09:11:24 +00:00
vm_contig.c
vm_extern.h	Eliminate dead code.	2009-04-01 04:36:37 +00:00
vm_fault.c	Prior to r188331 a map entry's last read offset was only updated by a hard	2009-02-25 07:52:53 +00:00
vm_glue.c
vm_init.c	Adjust some variables (mostly related to the buffer cache) that hold	2009-03-09 19:35:20 +00:00
vm_kern.c	Revert the addition of the freelist argument for the vm_map_delete()	2009-02-24 20:57:43 +00:00
vm_kern.h
vm_map.c	Revert the addition of the freelist argument for the vm_map_delete()	2009-02-24 20:57:43 +00:00
vm_map.h	Revert the addition of the freelist argument for the vm_map_delete()	2009-02-24 20:57:43 +00:00
vm_meter.c	- Mark all standalone INT/LONG/QUAD sysctl's MPSAFE. This is done	2009-01-23 22:49:23 +00:00
vm_mmap.c	Retire VM_PROT_READ_IS_EXEC. It was intended to be a micro-optimization,	2009-04-04 23:12:14 +00:00
vm_object.c	Reduce the scope of the page queues lock in vm_object_page_remove().	2009-02-21 20:57:25 +00:00
vm_object.h	Eliminate OBJ_NEEDGIANT. After r188331, OBJ_NEEDGIANT's only use is by a	2009-02-08 22:17:24 +00:00
vm_page.c	Extend the struct vm_page wire_count to u_int to avoid the overflow	2009-01-03 13:24:08 +00:00
vm_page.h	Extend the struct vm_page wire_count to u_int to avoid the overflow	2009-01-03 13:24:08 +00:00
vm_pageout.c
vm_pageout.h
vm_pager.c	Change the functions to ANSI in those cases where it breaks promotion	2009-02-24 18:09:31 +00:00
vm_pager.h
vm_param.h
vm_phys.c
vm_phys.h
vm_reserv.c
vm_reserv.h
vm_unix.c	Revert the addition of the freelist argument for the vm_map_delete()	2009-02-24 20:57:43 +00:00
vm_zeroidle.c
vm.h
vnode_pager.c	Adjust some variables (mostly related to the buffer cache) that hold	2009-03-09 19:35:20 +00:00
vnode_pager.h	Do not sleep for vnode lock while holding map lock in vm_fault. Try to	2009-02-08 20:23:46 +00:00