Jayachandran C. 49ca10d40c Redo the page table page allocation on MIPS, as suggested by ... alc@. The UMA zone based allocation is replaced by a scheme that creates a new free page list for the KSEG0 region, and a new function in sys/vm that allocates pages from a specific free page list. This also fixes a race condition introduced by the UMA based page table page allocation code. Dropping the page queue and pmap locks before the call to uma_zfree, and re-acquiring them afterwards will introduce a race condtion(noted by alc@). The changes are : - Revert the earlier changes in MIPS pmap.c that added UMA zone for page table pages. - Add a new freelist VM_FREELIST_HIGHMEM to MIPS vmparam.h for memory that is not directly mapped (in 32bit kernel). Normal page allocations will first try the HIGHMEM freelist and then the default(direct mapped) freelist. - Add a new function 'vm_page_t vm_page_alloc_freelist(int flind, int order, int req)' to vm/vm_page.c to allocate a page from a specified freelist. The MIPS page table pages will be allocated using this function from the freelist containing direct mapped pages. - Move the page initialization code from vm_phys_alloc_contig() to a new function vm_page_alloc_init(), and use this function to initialize pages in vm_page_alloc_freelist() too. - Split the function vm_phys_alloc_pages(int pool, int order) to create vm_phys_alloc_freelist_pages(int flind, int pool, int order), and use this function from both vm_page_alloc_freelist() and vm_phys_alloc_pages(). Reviewed by: alc		2010-07-21 09:27:00 +00:00
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default_pager.c	Implement global and per-uid accounting of the anonymous memory. Add	2009-06-23 20:45:22 +00:00
device_pager.c	Eliminate page queues locking around most calls to vm_page_free().	2010-05-06 18:58:32 +00:00
memguard.c	Start copyright notice with /*-	2010-04-07 16:29:10 +00:00
memguard.h	Start copyright notice with /*-	2010-04-07 16:29:10 +00:00
phys_pager.c	Handle busy status of the page in a way expected for pager_getpage().	2010-05-03 19:19:58 +00:00
pmap.h	Roughly half of a typical pmap_mincore() implementation is machine-	2010-05-24 14:26:57 +00:00
redzone.c
redzone.h
sg_pager.c	Eliminate page queues locking around most calls to vm_page_free().	2010-05-06 18:58:32 +00:00
swap_pager.c	Call vm_page_deactivate() rather than vm_page_dontneed() in	2010-05-09 16:27:42 +00:00
swap_pager.h
uma.h	Add a new column to the output of vmstat -z to indicate the number	2010-06-15 19:28:37 +00:00
uma_core.c	Add a new column to the output of vmstat -z to indicate the number	2010-06-15 19:28:37 +00:00
uma_dbg.c	- Make the keg abstraction more complete. Permit a zone to have multiple	2009-01-25 09:11:24 +00:00
uma_dbg.h
uma_int.h	Add a new column to the output of vmstat -z to indicate the number	2010-06-15 19:28:37 +00:00
vm.h	Replace VM_PROT_OVERRIDE_WRITE by VM_PROT_COPY. VM_PROT_OVERRIDE_WRITE has	2009-11-26 05:16:07 +00:00
vm_contig.c	With the demise of page coloring, the page queue macros no longer serve any	2010-07-02 15:02:51 +00:00
vm_extern.h	o) Add a VM find-space option, VMFS_TLB_ALIGNED_SPACE, which searches the	2010-04-18 22:32:07 +00:00
vm_fault.c	Use vm_page_prev() instead of vm_page_lookup() in the implementation of	2010-07-02 19:59:18 +00:00
vm_glue.c	Eliminate page queues locking around most calls to vm_page_free().	2010-05-06 18:58:32 +00:00
vm_init.c	Align the start of the clean submap to a superpage boundary. Although	2010-02-21 22:23:13 +00:00
vm_kern.c	The pages allocated by kmem_alloc_attr() and kmem_malloc() are unmanaged.	2010-05-03 07:08:16 +00:00
vm_kern.h
vm_map.c	Introduce a helper function vm_page_find_least(). Use it in several places,	2010-07-04 11:13:33 +00:00
vm_map.h	o) Add a VM find-space option, VMFS_TLB_ALIGNED_SPACE, which searches the	2010-04-18 22:32:07 +00:00
vm_meter.c	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_mmap.c	Push down page queues lock acquisition in pmap_enter_object() and	2010-05-26 18:00:44 +00:00
vm_object.c	Several cleanups for the r209686:	2010-07-04 19:02:32 +00:00
vm_object.h	VI_OBJDIRTY vnode flag mirrors the state of OBJ_MIGHTBEDIRTY vm object	2009-12-21 12:29:38 +00:00
vm_page.c	Redo the page table page allocation on MIPS, as suggested by	2010-07-21 09:27:00 +00:00
vm_page.h	Redo the page table page allocation on MIPS, as suggested by	2010-07-21 09:27:00 +00:00
vm_pageout.c	Push down the acquisition of the page queues lock into	2010-07-02 20:56:22 +00:00
vm_pageout.h	Make vm_contig_grow_cache() extern, and use it when vm_phys_alloc_contig()	2010-06-04 06:35:36 +00:00
vm_pager.c	Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to	2009-07-24 13:50:29 +00:00
vm_pager.h	Reimplement vm_object_page_clean(), using the fact that vm object memq	2010-07-04 11:26:56 +00:00
vm_param.h	On Alan's advice, rather than do a wholesale conversion on a single	2010-04-30 00:46:43 +00:00
vm_phys.c	Redo the page table page allocation on MIPS, as suggested by	2010-07-21 09:27:00 +00:00
vm_phys.h	Redo the page table page allocation on MIPS, as suggested by	2010-07-21 09:27:00 +00:00
vm_reserv.c	Previously, when vm_page_free_toq() was performed on a page belonging to	2009-04-11 09:09:00 +00:00
vm_reserv.h
vm_unix.c	Remove execute permission from the memory allocated by sbrk().	2009-04-11 22:34:08 +00:00
vm_zeroidle.c	Split P_NOLOAD into a per-thread flag (TDF_NOLOAD).	2009-11-03 16:46:52 +00:00
vnode_pager.c	Minimize the use of the page queues lock for synchronizing access to the	2010-06-02 15:46:37 +00:00
vnode_pager.h	Do not sleep for vnode lock while holding map lock in vm_fault. Try to	2009-02-08 20:23:46 +00:00