Tor Egge ff91d7800f Revert change in revision 1.53 and add a small comment to protect ... the revived code. vm pages newly allocated are marked busy (PG_BUSY), thus calling vm_page_delete before the pages has been freed or unbusied will cause a deadlock since vm_page_object_page_remove will wait for the busy flag to be cleared. This can be triggered by calling malloc with size > PAGE_SIZE and the M_NOWAIT flag on systems low on physical free memory. A kernel module that reproduces the problem, written by Logan Gabriel <logan@mail.2cactus.com>, can be found in the freebsd-hackers mail archive (12 Apr 2001). The problem was recently noticed again by Archie Cobbs <archie@dellroad.org>. Reviewed by: dillon		2002-03-09 16:24:27 +00:00
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default_pager.c	With Alfred's permission, remove vm_mtx in favor of a fine-grained approach	2001-07-04 16:20:28 +00:00
device_pager.c	With Alfred's permission, remove vm_mtx in favor of a fine-grained approach	2001-07-04 16:20:28 +00:00
phys_pager.c	With Alfred's permission, remove vm_mtx in favor of a fine-grained approach	2001-07-04 16:20:28 +00:00
pmap.h	Fix a horribly suboptimal algorithm in the vm_daemon.	2002-02-27 18:03:02 +00:00
swap_pager.c	Use thread0.td_ucred instead of proc0.p_ucred. This change is cosmetic	2002-02-27 19:18:10 +00:00
swap_pager.h	- If swap metadata does not fit into the KVM, reduce the number of	2000-12-13 10:01:00 +00:00
vm_contig.c	Call vm_pageq_remove_nowakeup() rather than duplicating it.	2002-03-03 22:36:14 +00:00
vm_extern.h	Pre-KSE/M3 commit.	2002-02-07 20:58:47 +00:00
vm_fault.c	Changes to make the OOM killer much more effective:	2002-02-19 18:34:02 +00:00
vm_glue.c	Remove unused variable (td)	2002-02-26 01:01:37 +00:00
vm_init.c	Move most of the kernel submap initialization code, including the	2001-08-22 04:07:27 +00:00
vm_kern.c	Revert change in revision 1.53 and add a small comment to protect	2002-03-09 16:24:27 +00:00
vm_kern.h	Introduce numerous SMP friendly changes to the mbuf allocator. Namely,	2001-06-22 06:35:32 +00:00
vm_map.c	Fix a bug in the vm_map_clean() procedure. msync()ing an area of memory	2002-03-07 03:54:56 +00:00
vm_map.h	Fix a race with free'ing vmspaces at process exit when vmspaces are	2002-02-05 21:23:05 +00:00
vm_meter.c	In a threaded world, differnt priorirites become properties of	2002-02-11 20:37:54 +00:00
vm_mmap.c	Simple p_ucred -> td_ucred changes to start using the per-thread ucred	2002-02-27 18:32:23 +00:00
vm_object.c	Add a sequential iteration optimization to vm_object_page_clean(). This	2002-03-06 02:42:56 +00:00
vm_object.h	Implement kern.maxvnodes. adjusting kern.maxvnodes now actually has a	2001-10-26 00:08:05 +00:00
vm_page.c	o Create vm_pageq_enqueue() to encapsulate code that is duplicated time	2002-03-04 18:55:26 +00:00
vm_page.h	o Create vm_pageq_enqueue() to encapsulate code that is duplicated time	2002-03-04 18:55:26 +00:00
vm_pageout.c	Fix a horribly suboptimal algorithm in the vm_daemon.	2002-02-27 18:03:02 +00:00
vm_pageout.h	Changes to make the OOM killer much more effective:	2002-02-19 18:34:02 +00:00
vm_pageq.c	o Create vm_pageq_enqueue() to encapsulate code that is duplicated time	2002-03-04 18:55:26 +00:00
vm_pager.c	* Move bswlist declaration and initialization from kern/vfs_bio.c to	2002-03-05 18:20:58 +00:00
vm_pager.h	With Alfred's permission, remove vm_mtx in favor of a fine-grained approach	2001-07-04 16:20:28 +00:00
vm_param.h	Make MAXTSIZ, DFLDSIZ, MAXDSIZ, DFLSSIZ, MAXSSIZ, SGROWSIZ loader	2001-10-10 23:06:54 +00:00
vm_swap.c	Simple p_ucred -> td_ucred changes to start using the per-thread ucred	2002-02-27 18:32:23 +00:00
vm_unix.c	Garbage-collect options ACPI_NO_ENABLE_ON_BOOT, AML_DEBUG, BLEED,	2002-02-15 13:16:11 +00:00
vm_zeroidle.c	In a threaded world, differnt priorirites become properties of	2002-02-11 20:37:54 +00:00
vm_zone.c	Back out all the pmap related stuff I've touched over the last few days.	2002-02-27 09:51:33 +00:00
vm_zone.h	Add a zdestroy() function to the zone allocator. This is needed for the	2001-08-04 20:17:05 +00:00
vm.h	Remove a parameter name from a prototype.	2002-01-25 21:33:10 +00:00
vnode_pager.c	Simple p_ucred -> td_ucred changes to start using the per-thread ucred	2002-02-27 18:32:23 +00:00
vnode_pager.h	vnode_pager_freepage() is really vm_page_free() in disguise,	2001-04-19 06:18:23 +00:00