kib 7798d7f7f4 For the upgrade case in vm_fault_copy_entry(), when the entry does not ... need COW and is writeable (i.e. becoming writeable due to the mprotect(2) operation), do not create a new backing object for the entry. The caller of the function is vm_map_protect(), the call is made to ensure that wired entry has all pages resident and wired in the top level object and to enable the write. We might need to copy read-only page from some backing objects into the top object or remap the page with the write allowed. This fixes the issue with mishandling of the swap accounting when read-only wired mapping is upgraded to write-enabled after fork. The previous code path did not accounted the new object, but it creation is redundand anyway and the change provides an optimization for the non-common situation. Reported by: markj Suggested and reviewed by: alc (previous version) Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week		2014-05-10 17:03:33 +00:00
..
_vm_radix.h	On all the architectures, avoid to preallocate the physical memory	2013-08-09 11:28:55 +00:00
default_pager.c	Rename VM_OBJECT_LOCK(), VM_OBJECT_UNLOCK() and VM_OBJECT_TRYLOCK() to	2013-02-20 12:03:20 +00:00
device_pager.c	Initialize paddr to handle the case of zero size.	2014-03-12 16:38:55 +00:00
memguard.c	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
memguard.h	Replace kernel virtual address space allocation with vmem. This provides	2013-08-07 06:21:20 +00:00
phys_pager.c	The soft and hard busy mechanism rely on the vm object lock to work.	2013-08-09 11:11:11 +00:00
pmap.h	The pmap function pmap_clear_reference() is no longer used. Remove it.	2013-09-20 04:30:18 +00:00
redzone.c
redzone.h
sg_pager.c	Different consumers of the struct vm_page abuse pageq member to keep	2013-08-10 17:36:42 +00:00
swap_pager.c	Add sysctl OIDs showing the actual size and capacity of the swap zone.	2014-04-26 12:18:17 +00:00
swap_pager.h	Do not map the swap i/o pbufs if the geom provider for the swap	2013-03-19 14:39:27 +00:00
uma_core.c	After r251709, avoid a clang 3.4 warning about an unused static const	2014-02-14 17:47:18 +00:00
uma_dbg.c	- Add a per-zone lock for zones without kegs.	2013-06-20 19:08:12 +00:00
uma_dbg.h
uma_int.h	Implement soft pressure on UMA cache bucket sizes.	2013-11-19 10:05:53 +00:00
uma.h	Create two public UMA_ZONE_PCPU zones: 64 bit sized and pointer sized.	2014-02-10 19:59:46 +00:00
vm_extern.h	Merge the following changes from projects/bhyve_npt_pmap:	2013-09-20 17:06:49 +00:00
vm_fault.c	For the upgrade case in vm_fault_copy_entry(), when the entry does not	2014-05-10 17:03:33 +00:00
vm_glue.c	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vm_init.c	Add a mmap flag (MAP_32BIT) on 64-bit platforms to request that a mapping use	2013-09-09 18:11:59 +00:00
vm_kern.c	Add a mmap flag (MAP_32BIT) on 64-bit platforms to request that a mapping use	2013-09-09 18:11:59 +00:00
vm_kern.h	- Add a statically allocated memguard arena since it is needed very early	2013-08-13 22:40:43 +00:00
vm_map.c	When printing the map with the ddb 'show procvm' command, do not dump	2014-05-10 16:36:13 +00:00
vm_map.h	Add a mmap flag (MAP_32BIT) on 64-bit platforms to request that a mapping use	2013-09-09 18:11:59 +00:00
vm_meter.c	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vm_mmap.c	msync(2) must return ENOMEM and not EINVAL when the address is outside the	2014-05-07 08:38:02 +00:00
vm_object.c	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vm_object.h	On all the architectures, avoid to preallocate the physical memory	2013-08-09 11:28:55 +00:00
vm_page.c	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vm_page.h	Since the introduction of the popmap to reservations in r259999, there is	2013-12-31 18:25:15 +00:00
vm_pageout.c	Prior to r254304, a separate function, vm_pageout_page_stats(), was used to	2014-05-06 03:42:04 +00:00
vm_pageout.h	Move what remains of vm/vm_contig.c into vm/vm_pageout.c, where similar	2012-07-18 05:21:34 +00:00
vm_pager.c	- Add a general purpose resource allocator, vmem, from NetBSD. It was	2013-06-28 03:51:20 +00:00
vm_pager.h	- Add a general purpose resource allocator, vmem, from NetBSD. It was	2013-06-28 03:51:20 +00:00
vm_param.h	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vm_phys.c	For the VM_PHYSSEG_DENSE case, checking the requested range to fall	2014-04-29 18:42:37 +00:00
vm_phys.h	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vm_radix.c	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vm_radix.h	Eliminate a redundant parameter to vm_radix_replace().	2013-12-08 20:07:02 +00:00
vm_reserv.c	Add "popmap" assertions: The page being freed isn't already free, and the	2013-12-29 04:54:52 +00:00
vm_reserv.h	Refactor vm_page_alloc()'s interactions with vm_reserv_alloc_page() and	2013-05-12 16:50:18 +00:00
vm_unix.c	- Improve readability of sys_obreak().	2013-01-11 09:58:35 +00:00
vm_zeroidle.c	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vm.h	rename scheduler->swapper and SI_SUB_RUN_SCHEDULER->SI_SUB_LAST	2013-07-24 09:45:31 +00:00
vnode_pager.c	Rename global cnt to vm_cnt to avoid shadowing.	2014-03-22 10:26:09 +00:00
vnode_pager.h