Tor Egge 8dbca793a9 Don't allow pagedaemon to skip pages while scanning PQ_ACTIVE or PQ_INACTIVE ... due to the vm object being locked. When a process writes large amounts of data to a file, the vm object associated with that file can contain most of the physical pages on the machine. If the process is preempted while holding the lock on the vm object, pagedaemon would be able to move very few pages from PQ_INACTIVE to PQ_CACHE or from PQ_ACTIVE to PQ_INACTIVE, resulting in unlimited cleaning of dirty pages belonging to other vm objects. Temporarily unlock the page queues lock while locking vm objects to avoid lock order violation. Detect and handle relevant page queue changes. This change depends on both the lock portion of struct vm_object and normal struct vm_page being type stable. Reviewed by: alc		2005-08-10 00:17:36 +00:00
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default_pager.c	/* -> /*- for license, minor formatting changes	2005-01-07 02:29:27 +00:00
device_pager.c	Add a comment to the effect that fictitious pages do not require the	2005-06-10 17:27:54 +00:00
memguard.c	Well, it seems that I pre-maturely removed the "All rights reserved"	2005-02-16 21:45:59 +00:00
memguard.h	Well, it seems that I pre-maturely removed the "All rights reserved"	2005-02-16 21:45:59 +00:00
phys_pager.c	/* -> /*- for license, minor formatting changes	2005-01-07 02:29:27 +00:00
pmap.h	Introduce a procedure, pmap_page_init(), that initializes the	2005-06-10 03:33:36 +00:00
swap_pager.c	Eliminate inconsistency in the setting of the B_DONE flag. Specifically,	2005-07-20 19:06:06 +00:00
swap_pager.h	/* -> /*- for license, minor formatting changes	2005-01-07 02:29:27 +00:00
uma_core.c	Rename UMA_MAX_NAME to UTH_MAX_NAME, since it's a maximum in the	2005-07-25 00:47:32 +00:00
uma_dbg.c	Improve canonicalization of copyrights. Order copyrights by order of	2005-07-16 09:51:52 +00:00
uma_dbg.h	Improve canonicalization of copyrights. Order copyrights by order of	2005-07-16 09:51:52 +00:00
uma_int.h	Wrap inlines in uma_int.h in #ifdef _KERNEL so that uma_int.h can be	2005-08-04 10:03:53 +00:00
uma.h	Rename UMA_MAX_NAME to UTH_MAX_NAME, since it's a maximum in the	2005-07-25 00:47:32 +00:00
vm_contig.c	The new contigmalloc(9) has a bad degenerate case where there were	2005-06-11 00:05:16 +00:00
vm_extern.h	- Change the vm_mmap() function to accept an objtype_t parameter specifying	2005-04-01 20:00:11 +00:00
vm_fault.c	Convert a remaining !fs.map->system_map to	2005-07-14 21:18:07 +00:00
vm_glue.c	Use low level constructs borrowed from interrupt threads to wait for	2005-05-23 23:01:53 +00:00
vm_init.c	Add the vm.exec_map_entries tunable and read-only sysctl, which controls	2005-04-25 19:22:05 +00:00
vm_kern.c	/* -> /*- for license, minor formatting changes	2005-01-07 02:29:27 +00:00
vm_kern.h	/* -> /*- for license, minor formatting changes	2005-01-07 02:29:27 +00:00
vm_map.c	Eliminate an incorrect (and unnecessary) cast.	2005-07-20 18:41:08 +00:00
vm_map.h	/* -> /*- for license, minor formatting changes	2005-01-07 02:29:27 +00:00
vm_meter.c	Enable debug_mpsafevm on ia64 due to the severe functional regression	2005-05-08 23:56:16 +00:00
vm_mmap.c	Move MAC check_vnode_mmap entry point out from being exclusive to	2005-04-14 16:03:30 +00:00
vm_object.c	Don't allow pagedaemon to skip pages while scanning PQ_ACTIVE or PQ_INACTIVE	2005-08-10 00:17:36 +00:00
vm_object.h	- Add a new object flag "OBJ_NEEDSGIANT". We set this flag if the	2005-05-03 11:11:26 +00:00
vm_page.c	- In vm_page_insert() hold the backing vnode when the first page	2005-03-15 14:14:09 +00:00
vm_page.h	Don't perform a nested include of opt_vmpage.h if LIBMEMSTAT is defined,	2005-08-04 10:05:11 +00:00
vm_pageout.c	Don't allow pagedaemon to skip pages while scanning PQ_ACTIVE or PQ_INACTIVE	2005-08-10 00:17:36 +00:00
vm_pageout.h	/* -> /*- for license, minor formatting changes	2005-01-07 02:29:27 +00:00
vm_pageq.c	Introduce a procedure, pmap_page_init(), that initializes the	2005-06-10 03:33:36 +00:00
vm_pager.c	Remove calls to spl*().	2005-05-18 20:45:33 +00:00
vm_pager.h	Update some comments to reflect the change from spl-based to lock-based	2005-05-18 22:08:52 +00:00
vm_param.h	/* -> /*- for license, minor formatting changes	2005-01-07 02:29:27 +00:00
vm_unix.c	/* -> /*- for license, minor formatting changes	2005-01-07 02:29:27 +00:00
vm_zeroidle.c	Set the scheduling class of the zeroidle thread to PRI_IDLE.	2005-02-04 06:18:31 +00:00
vm.h	- Change the vm_mmap() function to accept an objtype_t parameter specifying	2005-04-01 20:00:11 +00:00
vnode_pager.c	Use atomic operations on runningbufspace.	2005-08-08 22:44:10 +00:00
vnode_pager.h	Move the body of vop_stdcreatevobject() over to the vnode_pager under	2005-01-24 21:21:59 +00:00