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freebsd-nq/sys/vm
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Konstantin Belousov cd0047f3a9 Handle a race of collapse with a retrying fault. 
Both vm_object_scan_all_shadowed() and vm_object_collapse_scan() might
observe an invalid page left in the default backing object by the
fault handler that retried.  Check for the condition and refuse to collapse.

Reported and tested by:	pho
Reviewed by:	jeff
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D23331
2020-01-24 19:42:53 +00:00
..
_vm_radix.h
…
default_pager.c
…
device_pager.c
Don't hold the object lock while calling getpages.
2020-01-19 23:47:32 +00:00
memguard.c
vm: add missing CLTFLAG_MPSAFE annotations
2020-01-12 05:08:57 +00:00
memguard.h
…
phys_pager.c
Don't hold the object lock while calling getpages.
2020-01-19 23:47:32 +00:00
pmap.h
Remove page locking from pmap_mincore().
2019-10-16 22:03:27 +00:00
redzone.c
…
redzone.h
…
sg_pager.c
Don't hold the object lock while calling getpages.
2020-01-19 23:47:32 +00:00
swap_pager.c
Don't hold the object lock while calling getpages.
2020-01-19 23:47:32 +00:00
swap_pager.h
…
uma_core.c
uma: fix zone domain overlaying pcpu cache with disabled cpus
2020-01-23 04:56:38 +00:00
uma_dbg.c
Fix compilation failures on different arches that have vm_machdep.c not
2019-01-15 19:33:47 +00:00
uma_dbg.h
…
uma_int.h
uma: split slabzone into two sizes
2020-01-14 02:14:15 +00:00
uma.h
uma: split slabzone into two sizes
2020-01-14 02:14:15 +00:00
vm_domainset.c
Add a !NUMA definition for vm_domainset_iter_policy_ref_init().
2018-10-24 17:09:20 +00:00
vm_domainset.h
Refactor domainset iterators for use by malloc(9) and UMA.
2018-10-23 16:35:58 +00:00
vm_extern.h
Improve MD page fault handlers.
2019-09-27 18:43:36 +00:00
vm_fault.c
(fault 9/9) Move zero fill into a dedicated function to make the object lock
2020-01-23 05:23:37 +00:00
vm_glue.c
Consistently use busy and vm_page_valid() rather than touching page bits
2020-01-23 04:54:49 +00:00
vm_init.c
Simplify VM and UMA startup by eliminating boot pages. Instead use careful
2020-01-16 05:01:21 +00:00
vm_kern.c
Consistently use busy and vm_page_valid() rather than touching page bits
2020-01-23 04:54:49 +00:00
vm_kern.h
Do not reserve KVA for paging bufs in vm_ksubmap_init(), since now
2019-01-16 20:14:16 +00:00
vm_map.c
Most uses of vm_map_clip_start follow a call to vm_map_lookup. Define
2020-01-24 07:48:11 +00:00
vm_map.h
Revert r355505. The code that it allowed to compile has been removed.
2019-12-09 05:09:46 +00:00
vm_meter.c
Simplify anonymous memory handling with an OBJ_ANON flag. This eliminates
2019-11-19 23:19:43 +00:00
vm_mmap.c
kern_mmap: restore character deleted in transit
2020-01-04 23:51:44 +00:00
vm_object.c
Handle a race of collapse with a retrying fault.
2020-01-24 19:42:53 +00:00
vm_object.h
Don't hold the object lock while calling getpages.
2020-01-19 23:47:32 +00:00
vm_page.c
Don't hold the object lock while calling getpages.
2020-01-19 23:47:32 +00:00
vm_page.h
Remove some unused functions.
2019-12-28 19:04:29 +00:00
vm_pageout.c
Restore loop break in vm_pageout_lowmem().
2020-01-14 03:27:57 +00:00
vm_pageout.h
Fix OOM handling of some corner cases.
2019-08-16 09:43:49 +00:00
vm_pagequeue.h
Simplify vm_pageout_init_domain() and add a "big picture" comment.
2019-11-22 16:31:43 +00:00
vm_pager.c
Don't hold the object lock while calling getpages.
2020-01-19 23:47:32 +00:00
vm_pager.h
Add a deferred free mechanism for freeing swap space that does not require
2019-12-15 03:15:06 +00:00
vm_param.h
(fault 3/9) Move map relookup into a dedicated function.
2020-01-23 05:07:01 +00:00
vm_phys.c
Fix typo using RB_INITIALIZER.
2019-12-22 21:53:05 +00:00
vm_phys.h
Encapsulate phys_avail manipulation in a set of simple routines. Add a
2019-08-18 07:06:31 +00:00
vm_radix.c
vm: stop passing M_ZERO when allocating radix nodes
2018-06-24 13:08:05 +00:00
vm_radix.h
…
vm_reserv.c
vm: add missing CLTFLAG_MPSAFE annotations
2020-01-12 05:08:57 +00:00
vm_reserv.h
Fix locking in vm_reserv_reclaim_contig().
2019-11-22 16:28:52 +00:00
vm_swapout_dummy.c
…
vm_swapout.c
Don't hold the object lock while calling getpages.
2020-01-19 23:47:32 +00:00
vm_unix.c
Provide separate accounting for user-wired pages.
2019-05-13 16:38:48 +00:00
vm.h
…
vnode_pager.c
Don't hold the object lock while calling getpages.
2020-01-19 23:47:32 +00:00
vnode_pager.h
vm pager: writemapping accounting for OBJT_SWAP
2019-09-03 20:31:48 +00:00