kib f11f5ba812 Prevent parallel object collapses. Both vm_object_collapse_scan() and ... swap_pager_copy() might unlock the object, which allows the parallel collapse to execute. Besides destroying the object, it also might move the reference from parent to the backing object, firing the assertion ref_count == 1. Collapses are prevented by bumping paging_in_progress counters on both the object and its backing object. Reported by: cem Tested by: pho (previous version) Reviewed by: alc Sponsored by: The FreeBSD Foundation MFC after: 1 week X-Differential revision: https://reviews.freebsd.org/D6085		2016-05-26 16:59:29 +00:00
..
_vm_radix.h
default_pager.c	A change to KPI of vm_pager_get_pages() and underlying VOP_GETPAGES().	2015-12-16 21:30:45 +00:00
device_pager.c	Avoid duplicated calls to pmap_page_get_memattr().	2016-05-01 17:48:43 +00:00
memguard.c	Include sys/_task.h into uma_int.h, so that taskqueue.h isn't a	2016-02-09 20:22:35 +00:00
memguard.h
phys_pager.c	sys: use our roundup2/rounddown2() macros when param.h is available.	2016-04-21 19:57:40 +00:00
pmap.h	Properly sort the function declarations added in r286296	2015-08-05 10:48:32 +00:00
redzone.c	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
redzone.h
sg_pager.c	Plug a vm_page leak introduced in r292373.	2016-02-05 19:35:53 +00:00
swap_pager.c	Remove Giant around allocation of the swap pager with non-NULL handle.	2016-05-24 10:16:03 +00:00
swap_pager.h
uma_core.c	sys/vm: minor spelling fixes in comments.	2016-05-02 20:16:29 +00:00
uma_dbg.c	Include sys/_task.h into uma_int.h, so that taskqueue.h isn't a	2016-02-09 20:22:35 +00:00
uma_dbg.h	Move uma_dbg_alloc() and uma_dbg_free() into uma_core.c, which allows	2016-02-03 22:02:36 +00:00
uma_int.h	sys/vm: minor spelling fixes in comments.	2016-05-02 20:16:29 +00:00
uma.h	Remove UMA_ZONE_REFCNT feature, now unused.	2016-03-01 00:33:32 +00:00
vm_domain.c	Move vm_domain_rr_selectdomain() under #ifdef VM_NUMA_ALLOC.	2016-05-10 22:25:55 +00:00
vm_domain.h	Add an initial NUMA affinity/policy configuration for threads and processes.	2015-07-11 15:21:37 +00:00
vm_extern.h	Various cleanups to the main function for AIO kernel processes:	2016-01-19 21:37:51 +00:00
vm_fault.c	Correct an error in a comment: One of the conditions for page allocation	2016-05-23 16:59:05 +00:00
vm_glue.c	Remove false claim. Giant is dropped by mi_startup() before passing	2016-05-22 19:25:53 +00:00
vm_init.c	Parallelize the buffer cache and rewrite getnewbuf(). This results in a	2015-10-14 02:10:07 +00:00
vm_kern.c	Introduce a new mechanism for relocating virtual pages to a new physical	2015-12-19 18:42:50 +00:00
vm_kern.h
vm_map.c	sys/vm: minor spelling fixes in comments.	2016-05-02 20:16:29 +00:00
vm_map.h	Do not pretend that vm_fault(9) supports unwiring the address. Rename	2015-07-30 18:28:34 +00:00
vm_meter.c	Remove the v_cache_min and v_cache_max sysctls. They are unused and have	2015-09-11 03:00:24 +00:00
vm_mmap.c	Add a local variable initialization needed in the OBJT_DEFAULT case.	2015-07-05 22:26:19 +00:00
vm_object.c	Prevent parallel object collapses. Both vm_object_collapse_scan() and	2016-05-26 16:59:29 +00:00
vm_object.h	Add implementation of robust mutexes, hopefully close enough to the	2016-05-17 09:56:22 +00:00
vm_page.c	In vm_page_cache(), only drop the vnode after radix insert failure	2016-05-24 19:20:30 +00:00
vm_page.h	vm/vm_page.h: Fix trivial '-Wpointer-sign' warning	2016-05-19 17:54:14 +00:00
vm_pageout.c	sys/vm: minor spelling fixes in comments.	2016-05-02 20:16:29 +00:00
vm_pageout.h	Introduce a new mechanism for relocating virtual pages to a new physical	2015-12-19 18:42:50 +00:00
vm_pager.c	Remove slightly used const values that can be replaced with nitems().	2016-04-21 15:38:28 +00:00
vm_pager.h	A change to KPI of vm_pager_get_pages() and underlying VOP_GETPAGES().	2015-12-16 21:30:45 +00:00
vm_param.h	Remove the v_cache_min and v_cache_max sysctls. They are unused and have	2015-09-11 03:00:24 +00:00
vm_phys.c	sys: use our roundup2/rounddown2() macros when param.h is available.	2016-04-21 19:57:40 +00:00
vm_phys.h	Add more fine-grained kernel options for NUMA support.	2016-04-09 13:58:04 +00:00
vm_radix.c	Cleanup redundant parenthesis from existing howmany()/roundup() macro uses.	2016-04-22 16:57:42 +00:00
vm_radix.h
vm_reserv.c	Introduce a new mechanism for relocating virtual pages to a new physical	2015-12-19 18:42:50 +00:00
vm_reserv.h	Introduce a new mechanism for relocating virtual pages to a new physical	2015-12-19 18:42:50 +00:00
vm_unix.c	Implement lockless resource limits.	2015-06-10 10:48:12 +00:00
vm_zeroidle.c	Pull in r267961 and r267973 again. Fix for issues reported will follow.	2014-06-28 03:56:17 +00:00
vm.h	Add new bus methods for mapping resources.	2016-05-20 17:57:47 +00:00
vnode_pager.c	Add implementation of robust mutexes, hopefully close enough to the	2016-05-17 09:56:22 +00:00
vnode_pager.h	A change to KPI of vm_pager_get_pages() and underlying VOP_GETPAGES().	2015-12-16 21:30:45 +00:00