freebsd-nq/sys/vm
Konstantin Belousov ecfbddf0cd sysctl vm.objects: report backing object and swap use
For anonymous objects, provide a handle kvo_me naming the object,
and report the handle of the backing object.  This allows userspace
to deconstruct the shadow chain.  Right now the handle is the address
of the object in KVA, but this is not guaranteed.

For the same anonymous objects, report the swap space used for actually
swapped out pages, in kvo_swapped field.  I do not believe that it is
useful to report full 64bit counter there, so only uint32_t value is
returned, clamped to the max.

For kinfo_vmentry, report anonymous object handle backing the entry,
so that the shadow chain for the specific mapping can be deconstructed.

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D29771
2021-04-19 21:32:01 +03:00
..
_vm_phys.h
_vm_radix.h
default_pager.c
device_pager.c
memguard.c
memguard.h
phys_pager.c
pmap.h
redzone.c
redzone.h
sg_pager.c
swap_pager.c sysctl vm.objects: report backing object and swap use 2021-04-19 21:32:01 +03:00
swap_pager.h sysctl vm.objects: report backing object and swap use 2021-04-19 21:32:01 +03:00
uma_core.c uma: Introduce per-domain reclamation functions 2021-04-14 13:03:34 -04:00
uma_dbg.c
uma_dbg.h
uma_int.h uma: Introduce per-domain reclamation functions 2021-04-14 13:03:34 -04:00
uma.h uma: Introduce per-domain reclamation functions 2021-04-14 13:03:34 -04:00
vm_domainset.c
vm_domainset.h
vm_dumpset.h
vm_extern.h
vm_fault.c vm_fault: Shoot down multiply mapped COW source page mappings 2021-04-06 14:49:28 -04:00
vm_glue.c kstack: Add KASAN state transitions 2021-04-13 17:42:21 -04:00
vm_init.c
vm_kern.c uma: Introduce per-domain reclamation functions 2021-04-14 13:03:34 -04:00
vm_kern.h
vm_map.c vm_map_protect(): remove not needed recalculations of new_prot, new_maxprot 2021-01-14 10:02:43 +02:00
vm_map.h vm_map_protect: allow to set prot and max_prot in one go. 2021-01-13 01:35:22 +02:00
vm_meter.c Use atomic loads/stores when updating td->td_state 2021-02-18 14:02:48 +00:00
vm_mmap.c Rename kern_mmap_req to kern_mmap 2021-01-25 21:50:37 +00:00
vm_object.c sysctl vm.objects: report backing object and swap use 2021-04-19 21:32:01 +03:00
vm_object.h
vm_page.c vm: Round up npages and alignment for contig reclamation 2021-03-02 10:21:02 -05:00
vm_page.h Add a VM flag to prevent reclaim on a failed contig allocation 2021-02-03 16:16:51 -05:00
vm_pageout.c
vm_pageout.h
vm_pagequeue.h
vm_pager.c
vm_pager.h
vm_param.h
vm_phys.c
vm_phys.h
vm_radix.c
vm_radix.h
vm_reserv.c vm_reserv: Fix list locking in vm_reserv_reclaim_contig() 2021-03-11 10:35:35 -05:00
vm_reserv.h
vm_swapout_dummy.c
vm_swapout.c
vm_unix.c
vm.h Add a VA_IS_CLEANMAP() macro. 2021-02-17 16:32:11 -08:00
vnode_pager.c Remove unused obj variable missed in r354870. 2021-03-17 15:29:15 -07:00
vnode_pager.h