svn commit: r218345 - in head/sys: fs/nfsserver nfsserver security/mac vm

Author: alc Date: Sat Feb 5 21:21:27 2011 New Revision: 218345 URL: http://svn.freebsd.org/changeset/base/218345 Log: Unless cnt exceeds MAX_COMMIT_COUNT, nfsrv_commit() and nfsvno_fsync() are incorrectly calling vm_object_page_clean(). They are passing the length of the range rather than

svn commit: r218304 - head/sys/vm

Author: alc Date: Fri Feb 4 21:49:24 2011 New Revision: 218304 URL: http://svn.freebsd.org/changeset/base/218304 Log: Since the last parameter to vm_object_shadow() is a vm_size_t and not a vm_pindex_t, it makes no sense for its callers to perform atop(). Let vm_object_shadow() do that

svn commit: r218223 - head/sys/kern

Author: alc Date: Thu Feb 3 14:42:46 2011 New Revision: 218223 URL: http://svn.freebsd.org/changeset/base/218223 Log: Eliminate unnecessary page hold_count checks. These checks predate r90944, which introduced a general mechanism for handling the freeing of held pages. Reviewed by:

svn commit: r218113 - head/sys/vm

Author: alc Date: Sun Jan 30 23:55:48 2011 New Revision: 218113 URL: http://svn.freebsd.org/changeset/base/218113 Log: Release the free page queues lock earlier in vm_page_alloc(). Discussed with: kib@ Modified: head/sys/vm/vm_page.c Modified: head/sys/vm/vm_page.c

svn commit: r218070 - head/sys/vm

Author: alc Date: Sat Jan 29 15:23:02 2011 New Revision: 218070 URL: http://svn.freebsd.org/changeset/base/218070 Log: Reenable the call to vm_map_simplify_entry() from vm_map_insert() for non- MAP_STACK_* entries. (See r71983 and r74235.) In some cases, performing this call to

svn commit: r217581 - head/sys/dev/md

Author: alc Date: Wed Jan 19 15:43:54 2011 New Revision: 217581 URL: http://svn.freebsd.org/changeset/base/217581 Log: There is no point in calling vm_object_set_writeable_dirty() on an object that is definitively known to be swap backed since its only effects are on vnode-backed objects.

svn commit: r217508 - head/sys/vm

Author: alc Date: Mon Jan 17 19:17:26 2011 New Revision: 217508 URL: http://svn.freebsd.org/changeset/base/217508 Log: Explicitly initialize the page's queue field to PQ_NONE instead of relying on PQ_NONE being zero. Redefine PQ_NONE and PQ_COUNT so that a page queue isn't allocated for

svn commit: r217529 - head/sys/vm

Author: alc Date: Tue Jan 18 04:54:43 2011 New Revision: 217529 URL: http://svn.freebsd.org/changeset/base/217529 Log: Move the definition of M_VMPGDATA to the swap pager, where the only remaining uses are. Modified: head/sys/vm/swap_pager.c head/sys/vm/vm_pager.c

svn commit: r217477 - head/sys/vm

Author: alc Date: Sun Jan 16 17:33:34 2011 New Revision: 217477 URL: http://svn.freebsd.org/changeset/base/217477 Log: Clean up the start of vm_page_alloc(). In particular, eliminate an assertion that is no longer required. Long ago, calls to vm_page_alloc() from an interrupt handler had

svn commit: r217478 - head/sys/vm

Author: alc Date: Sun Jan 16 18:01:39 2011 New Revision: 217478 URL: http://svn.freebsd.org/changeset/base/217478 Log: Shift responsibility for synchronizing access to the page's act_count field to the object's lock. Reviewed by: kib@ Modified: head/sys/vm/vm_page.c

svn commit: r217479 - head/sys/vm

Author: alc Date: Sun Jan 16 18:04:01 2011 New Revision: 217479 URL: http://svn.freebsd.org/changeset/base/217479 Log: Update a lock annotation on the page structure. Modified: head/sys/vm/vm_page.h Modified: head/sys/vm/vm_page.h

svn commit: r217482 - head/sys/vm

Author: alc Date: Sun Jan 16 20:40:50 2011 New Revision: 217482 URL: http://svn.freebsd.org/changeset/base/217482 Log: Sort function prototypes. Modified: head/sys/vm/pmap.h Modified: head/sys/vm/pmap.h == ---

svn commit: r217453 - head/sys/vm

Author: alc Date: Sat Jan 15 19:21:28 2011 New Revision: 217453 URL: http://svn.freebsd.org/changeset/base/217453 Log: For some time now, the kernel and kmem objects have been ordinary OBJT_PHYS objects. Thus, there is no need for handling them specially in vm_fault(). In fact, this

svn commit: r217171 - head/sys/vm

Author: alc Date: Sat Jan 8 22:45:22 2011 New Revision: 217171 URL: http://svn.freebsd.org/changeset/base/217171 Log: Eliminate the counting of vm_page_pa_tryrelock calls. We really don't need it anymore. Moreover, its implementation had a type mismatch, a long is not necessarily an

svn commit: r217177 - head/sys/vm

Author: alc Date: Sun Jan 9 04:34:02 2011 New Revision: 217177 URL: http://svn.freebsd.org/changeset/base/217177 Log: Eliminate a redundant alignment directive on the page locks array. Modified: head/sys/vm/vm_page.c Modified: head/sys/vm/vm_page.c

svn commit: r216874 - head/sys/vm

Author: alc Date: Sat Jan 1 17:39:38 2011 New Revision: 216874 URL: http://svn.freebsd.org/changeset/base/216874 Log: Make a couple refinements to r216799 and r216810. In particular, revise a comment and move it to its proper place. Reviewed by: kib Modified:

svn commit: r216807 - head/sys/vm

Author: alc Date: Wed Dec 29 20:35:36 2010 New Revision: 216807 URL: http://svn.freebsd.org/changeset/base/216807 Log: There is no point in vm_contig_launder{,_page}() flushing held pages, instead skip over them. As long as a page is held, it can't be reclaimed by contigmalloc(M_WAITOK).

svn commit: r216772 - head/sys/vm

Author: alc Date: Tue Dec 28 20:02:30 2010 New Revision: 216772 URL: http://svn.freebsd.org/changeset/base/216772 Log: Correct a typo in vm_fault_quick_hold_pages(). Reported by: Bartosz Stec Modified: head/sys/vm/vm_fault.c Modified: head/sys/vm/vm_fault.c

svn commit: r216731 - head/sys/vm

Author: alc Date: Mon Dec 27 07:12:22 2010 New Revision: 216731 URL: http://svn.freebsd.org/changeset/base/216731 Log: Move vm_object_print()'s prototype to the expected place. Modified: head/sys/vm/vm_extern.h head/sys/vm/vm_object.h Modified: head/sys/vm/vm_extern.h

svn commit: r216699 - in head/sys: dev/cxgb/ulp/tom dev/drm kern net vm

Author: alc Date: Sat Dec 25 21:26:56 2010 New Revision: 216699 URL: http://svn.freebsd.org/changeset/base/216699 Log: Introduce and use a new VM interface for temporarily pinning pages. This new interface replaces the combined use of vm_fault_quick() and pmap_extract_and_hold() throughout

svn commit: r216701 - head/sys/vm

Author: alc Date: Sat Dec 25 23:54:50 2010 New Revision: 216701 URL: http://svn.freebsd.org/changeset/base/216701 Log: Retire vm_fault_quick(). It's no longer used. Reviewed by: kib@ Modified: head/sys/vm/vm_extern.h head/sys/vm/vm_fault.c Modified: head/sys/vm/vm_extern.h

svn commit: r216702 - head/sys/kern

Author: alc Date: Sun Dec 26 01:42:52 2010 New Revision: 216702 URL: http://svn.freebsd.org/changeset/base/216702 Log: Correct the order of the arguments to vm_fault_quick_hold_pages(). Modified: head/sys/kern/uipc_cow.c Modified: head/sys/kern/uipc_cow.c

Re: svn commit: r216625 - head/sys/sparc64/include

Marius Strobl wrote: Author: marius Date: Tue Dec 21 21:32:17 2010 New Revision: 216625 URL: http://svn.freebsd.org/changeset/base/216625 Log: Revert r216080 so kmem_map is capped at 3/5 of the currently rather modest kernel address space in order to leave space for the buffer cache, pipes,

svn commit: r216604 - in head/sys: dev/cxgb/ulp/tom kern vm

Author: alc Date: Mon Dec 20 22:49:31 2010 New Revision: 216604 URL: http://svn.freebsd.org/changeset/base/216604 Log: Introduce vm_fault_hold() and use it to (1) eliminate a long-standing race condition in proc_rwmem() and to (2) simplify the implementation of the cxgb driver's

svn commit: r216607 - head/sys/dev/cxgb/ulp/tom

Author: alc Date: Mon Dec 20 23:41:31 2010 New Revision: 216607 URL: http://svn.freebsd.org/changeset/base/216607 Log: The local variable rv is still required by vm_fault_hold_user_pages(). Modified: head/sys/dev/cxgb/ulp/tom/cxgb_vm.c Modified: head/sys/dev/cxgb/ulp/tom/cxgb_vm.c

Re: svn commit: r216333 - head/sys/i386/i386

Joel Dahl wrote: On 09-12-2010 20:16, Alan Cox wrote: Author: alc Date: Thu Dec 9 20:16:00 2010 New Revision: 216333 URL: http://svn.freebsd.org/changeset/base/216333 Log: When r207410 eliminated the acquisition and release of the page queues lock from pmap_extract_and_hold

svn commit: r216555 - head/sys/i386/i386

Author: alc Date: Sun Dec 19 07:31:56 2010 New Revision: 216555 URL: http://svn.freebsd.org/changeset/base/216555 Log: Redo some parts of r216333, specifically, the locking changes to pmap_extract_and_hold(), and undo the rest. In particular, I forgot that PG_PS and PG_PTE_PAT are the same

svn commit: r216511 - in head/sys: dev/cxgb/ulp/tom kern vm

Author: alc Date: Fri Dec 17 22:41:22 2010 New Revision: 216511 URL: http://svn.freebsd.org/changeset/base/216511 Log: Implement and use a single optimized function for unholding a set of pages. Reviewed by: kib@ Modified: head/sys/dev/cxgb/ulp/tom/cxgb_cpl_socket.c

svn commit: r216425 - head/sys/vm

Author: alc Date: Tue Dec 14 05:47:35 2010 New Revision: 216425 URL: http://svn.freebsd.org/changeset/base/216425 Log: Change memguard_fudge() so that it can handle km_max being zero. Not every platform defines VM_KMEM_SIZE_MAX, and on those platforms km_max will be zero. Reviewed by:

Re: svn commit: r216016 - head/sys/sparc64/include

m...@freebsd.org wrote: On Tue, Dec 7, 2010 at 5:41 AM, Marius Strobl mar...@alchemy.franken.de wrote: On Mon, Dec 06, 2010 at 02:30:01PM -0800, m...@freebsd.org wrote: On Mon, Dec 6, 2010 at 2:07 PM, Marius Strobl mar...@alchemy.franken.de wrote: [lots of snip] With that one

svn commit: r216333 - head/sys/i386/i386

Author: alc Date: Thu Dec 9 20:16:00 2010 New Revision: 216333 URL: http://svn.freebsd.org/changeset/base/216333 Log: When r207410 eliminated the acquisition and release of the page queues lock from pmap_extract_and_hold(), it didn't take into account that pmap_pte_quick() sometimes

Re: svn commit: r216016 - head/sys/sparc64/include

Marius Strobl wrote: On Wed, Dec 01, 2010 at 12:19:17PM -0600, Alan Cox wrote: Marius Strobl wrote: On Mon, Nov 29, 2010 at 08:23:08PM +0100, Marius Strobl wrote: On Tue, Nov 30, 2010 at 12:31:31AM +0600, Max Khon wrote: Marius, On Mon, Nov 29, 2010 at 1:45 AM

Re: svn commit: r216016 - head/sys/sparc64/include

Marius Strobl wrote: On Mon, Nov 29, 2010 at 08:23:08PM +0100, Marius Strobl wrote: On Tue, Nov 30, 2010 at 12:31:31AM +0600, Max Khon wrote: Marius, On Mon, Nov 29, 2010 at 1:45 AM, Marius Strobl mar...@alchemy.franken.dewrote: On Sun, Nov 28, 2010 at 07:26:20PM +, Max Khon

svn commit: r216090 - head/sys/vm

Author: alc Date: Wed Dec 1 03:35:19 2010 New Revision: 216090 URL: http://svn.freebsd.org/changeset/base/216090 Log: Correct an error in the allocation of the vm_page_dump array in vm_page_startup(). Specifically, the dump_avail array should be used instead of the phys_avail array to

svn commit: r216094 - head/sys/ia64/include

Author: alc Date: Wed Dec 1 05:52:27 2010 New Revision: 216094 URL: http://svn.freebsd.org/changeset/base/216094 Log: phys_avail[] is correctly defined as an array of vm_paddr_t's in machdep.c. Use that same type, and not vm_offset_t, in this include file. Modified:

svn commit: r215878 - in head/sys/amd64: amd64 include

Author: alc Date: Fri Nov 26 19:36:26 2010 New Revision: 215878 URL: http://svn.freebsd.org/changeset/base/215878 Log: Make the size of the direct map easily configurable. Changing NDMPML4E now suffices. Increase the size of the direct map to 1TB. An earler version of this patch

svn commit: r215653 - in stable/8: share/man/man9 sys/vm

Author: alc Date: Mon Nov 22 06:25:56 2010 New Revision: 215653 URL: http://svn.freebsd.org/changeset/base/215653 Log: MFC r209669 Improve the comment and man page for vm_page_alloc(). Modified: stable/8/share/man/man9/vm_page_alloc.9 stable/8/sys/vm/vm_page.c Directory Properties:

svn commit: r215659 - in stable/7: share/man/man9 sys/vm

Author: alc Date: Mon Nov 22 07:17:27 2010 New Revision: 215659 URL: http://svn.freebsd.org/changeset/base/215659 Log: MFC r204415, r204416, r209669 Improve the comment and man page for vm_page_alloc(). Modified: stable/7/share/man/man9/vm_page_alloc.9 stable/7/sys/vm/vm_page.c

svn commit: r215597 - head/sys/vm

Author: alc Date: Sat Nov 20 22:30:09 2010 New Revision: 215597 URL: http://svn.freebsd.org/changeset/base/215597 Log: Optimize vm_object_terminate(). Reviewed by: kib MFC after:1 week Modified: head/sys/vm/vm_object.c Modified: head/sys/vm/vm_object.c

svn commit: r215538 - head/sys/vm

Author: alc Date: Fri Nov 19 17:49:08 2010 New Revision: 215538 URL: http://svn.freebsd.org/changeset/base/215538 Log: Reduce the amount of detail printed by vm_page_free_toq() when it panics. Reviewed by: kib Modified: head/sys/vm/vm_page.c Modified: head/sys/vm/vm_page.c

svn commit: r215430 - in stable/8/sys: kern vm

Author: alc Date: Wed Nov 17 17:29:22 2010 New Revision: 215430 URL: http://svn.freebsd.org/changeset/base/215430 Log: MFC r209407, r209648, r209650 Introduce and use vm_page_next() and vm_page_prev(). They provide both a simpler and faster interface for iterating over the pages of an

svn commit: r215433 - in stable/7/sys: kern vm

Author: alc Date: Wed Nov 17 18:21:29 2010 New Revision: 215433 URL: http://svn.freebsd.org/changeset/base/215433 Log: MFC r209407, r209648, r209650 Introduce and use vm_page_next() and vm_page_prev(). They provide both a simpler and faster interface for iterating over the pages of an

svn commit: r215370 - stable/7/sys/vm

Author: alc Date: Tue Nov 16 04:51:07 2010 New Revision: 215370 URL: http://svn.freebsd.org/changeset/base/215370 Log: MFC r214953 In case the stack size reaches its limit and its growth must be restricted, ensure that grow_amount is a multiple of the page size. Otherwise, the

svn commit: r215371 - stable/7/sys/i386/i386

Author: alc Date: Tue Nov 16 05:01:27 2010 New Revision: 215371 URL: http://svn.freebsd.org/changeset/base/215371 Log: MFC r214938 Eliminate a possible race between pmap_pinit() and pmap_kenter_pde() on superpage promotion or demotion. Micro-optimize pmap_kenter_pde(). Modified:

svn commit: r215372 - stable/8/sys/i386/i386

Author: alc Date: Tue Nov 16 05:06:20 2010 New Revision: 215372 URL: http://svn.freebsd.org/changeset/base/215372 Log: MFC r214938 Eliminate a possible race between pmap_pinit() and pmap_kenter_pde() on superpage promotion or demotion. Micro-optimize pmap_kenter_pde(). Modified:

svn commit: r215373 - in stable/8/sys/i386: i386 include

Author: alc Date: Tue Nov 16 05:46:35 2010 New Revision: 215373 URL: http://svn.freebsd.org/changeset/base/215373 Log: MFC r213455 Initialize KPTmap in locore so that vm86.c can call vtophys() (or really pmap_kextract()) before pmap_bootstrap() is called. Document the set of pmap

svn commit: r215374 - in stable/7/sys/i386: i386 include

Author: alc Date: Tue Nov 16 06:20:12 2010 New Revision: 215374 URL: http://svn.freebsd.org/changeset/base/215374 Log: MFC r213455 Initialize KPTmap in locore so that vm86.c can call vtophys() (or really pmap_kextract()) before pmap_bootstrap() is called. Document the set of pmap

Re: svn commit: r215135 - head/sys/compat/ndis

Bernhard Schmidt wrote: Author: bschmidt Date: Thu Nov 11 18:43:31 2010 New Revision: 215135 URL: http://svn.freebsd.org/changeset/base/215135 Log: According to specs for MmAllocateContiguousMemorySpecifyCache() physically contiguous memory with requested restrictions must be allocated.

svn commit: r215093 - in head/sys: sparc64/include vm

Author: alc Date: Wed Nov 10 17:57:34 2010 New Revision: 215093 URL: http://svn.freebsd.org/changeset/base/215093 Log: Enable reservation-based physical memory allocation. Even without the creation of large page mappings in the pmap, it can provide modest performance benefits. In

svn commit: r214938 - head/sys/i386/i386

Author: alc Date: Sun Nov 7 18:42:37 2010 New Revision: 214938 URL: http://svn.freebsd.org/changeset/base/214938 Log: Eliminate a possible race between pmap_pinit() and pmap_kenter_pde() on superpage promotion or demotion. Micro-optimize pmap_kenter_pde(). Reviewed by: kib, jhb

svn commit: r214942 - stable/8/sys/vm

Author: alc Date: Sun Nov 7 19:51:51 2010 New Revision: 214942 URL: http://svn.freebsd.org/changeset/base/214942 Log: MFC r214564 Correct some format strings used by sysctls. Modified: stable/8/sys/vm/vm_phys.c stable/8/sys/vm/vm_reserv.c Directory Properties: stable/8/sys/ (props

svn commit: r214943 - stable/7/sys/vm

Author: alc Date: Sun Nov 7 20:20:19 2010 New Revision: 214943 URL: http://svn.freebsd.org/changeset/base/214943 Log: MFC r214564 Correct some format strings used by sysctls. Modified: stable/7/sys/vm/vm_phys.c stable/7/sys/vm/vm_reserv.c Directory Properties: stable/7/sys/ (props

svn commit: r214953 - head/sys/vm

Author: alc Date: Sun Nov 7 21:40:34 2010 New Revision: 214953 URL: http://svn.freebsd.org/changeset/base/214953 Log: In case the stack size reaches its limit and its growth must be restricted, ensure that grow_amount is a multiple of the page size. Otherwise, the kernel may crash in

svn commit: r214954 - head/sys/amd64/amd64

Author: alc Date: Sun Nov 7 21:48:49 2010 New Revision: 214954 URL: http://svn.freebsd.org/changeset/base/214954 Log: Don't call pmap_demote_DMAP() on MTRR entries from the BIOS that are marked as bogus. Reported by: Jia-Shiun Li Modified: head/sys/amd64/amd64/amd64_mem.c Modified:

svn commit: r214617 - head/sys/powerpc/aim

Author: alc Date: Mon Nov 1 02:22:48 2010 New Revision: 214617 URL: http://svn.freebsd.org/changeset/base/214617 Log: Implement pmap_is_prefaultable(). Reviewed by: nwhitehorn Modified: head/sys/powerpc/aim/mmu_oea.c head/sys/powerpc/aim/mmu_oea64.c Modified:

svn commit: r214558 - stable/7/sys/vm

Author: alc Date: Sat Oct 30 16:09:15 2010 New Revision: 214558 URL: http://svn.freebsd.org/changeset/base/214558 Log: MFC r213408 If vm_map_find() is asked to allocate a superpage-aligned region of virtual addresses that is greater than a superpage in size but not a multiple of the

svn commit: r214563 - head/sys/amd64/amd64

Author: alc Date: Sat Oct 30 17:21:32 2010 New Revision: 214563 URL: http://svn.freebsd.org/changeset/base/214563 Log: Don't demote in pmap_demote_DMAP() if the specified length is zero. Modified: head/sys/amd64/amd64/pmap.c Modified: head/sys/amd64/amd64/pmap.c

svn commit: r214564 - head/sys/vm

Author: alc Date: Sat Oct 30 18:00:53 2010 New Revision: 214564 URL: http://svn.freebsd.org/changeset/base/214564 Log: Correct some format strings used by sysctls. MFC after:1 week Modified: head/sys/vm/vm_phys.c head/sys/vm/vm_reserv.c Modified: head/sys/vm/vm_phys.c

svn commit: r214576 - head/sys/amd64/amd64

Author: alc Date: Sat Oct 30 23:49:37 2010 New Revision: 214576 URL: http://svn.freebsd.org/changeset/base/214576 Log: Add another safety belt to pmap_demote_DMAP(). Modified: head/sys/amd64/amd64/pmap.c Modified: head/sys/amd64/amd64/pmap.c

svn commit: r214546 - stable/8/sys/vm

Author: alc Date: Sat Oct 30 04:53:50 2010 New Revision: 214546 URL: http://svn.freebsd.org/changeset/base/214546 Log: MFC r213408 If vm_map_find() is asked to allocate a superpage-aligned region of virtual addresses that is greater than a superpage in size but not a multiple of the

svn commit: r213897 - head/sys/amd64/amd64

Author: alc Date: Fri Oct 15 15:23:34 2010 New Revision: 213897 URL: http://svn.freebsd.org/changeset/base/213897 Log: Update pmap_extract() to handle 1GB page mappings. Some device drivers use pmap_extract() rather than pmap_kextract() on direct map addresses. Thus, pmap_extract() needs

svn commit: r213886 - stable/8/sys/vm

Author: alc Date: Fri Oct 15 02:58:49 2010 New Revision: 213886 URL: http://svn.freebsd.org/changeset/base/213886 Log: MFC r212873 Allow a POSIX shared memory object that is opened for read but not for write to nonetheless be mapped PROT_WRITE and MAP_PRIVATE, i.e., copy-on-write.

svn commit: r213888 - stable/8/sys/amd64/amd64

Author: alc Date: Fri Oct 15 04:02:07 2010 New Revision: 213888 URL: http://svn.freebsd.org/changeset/base/213888 Log: MFC r210124 Optimize pmap_remove()'s handling of PG_G mappings. Modified: stable/8/sys/amd64/amd64/pmap.c Directory Properties: stable/8/sys/ (props changed)

svn commit: r213890 - stable/8/sys/kern

Author: alc Date: Fri Oct 15 05:42:35 2010 New Revision: 213890 URL: http://svn.freebsd.org/changeset/base/213890 Log: MFC r209605 Improve bufdone_finish()'s handling of the bogus page. Specifically, if one or more mappings to the bogus page must be replaced, call pmap_qenter()

Re: svn commit: r213527 - head/sys/kern

Andriy Gapon wrote: Author: avg Date: Thu Oct 7 18:11:33 2010 New Revision: 213527 URL: http://svn.freebsd.org/changeset/base/213527 Log: vm.kmem_map_size: a sysctl to query current kmem_map-size Based on a patch from Sandvine Incorporated via emaste. You might, in fact, find

svn commit: r213455 - in head/sys/i386: i386 include

Author: alc Date: Tue Oct 5 17:06:51 2010 New Revision: 213455 URL: http://svn.freebsd.org/changeset/base/213455 Log: Initialize KPTmap in locore so that vm86.c can call vtophys() (or really pmap_kextract()) before pmap_bootstrap() is called. Document the set of pmap functions that may

Re: svn commit: r213307 - in head/sys/powerpc: aim include powerpc

Nathan Whitehorn wrote: Author: nwhitehorn Date: Thu Sep 30 18:14:12 2010 New Revision: 213307 URL: http://svn.freebsd.org/changeset/base/213307 Log: Add support for memory attributes (pmap_mapdev_attr() and friends) on PowerPC/AIM. This is currently stubbed out on Book-E, since I have no

svn commit: r212965 - in head: lib/libc/sys sys/kern sys/sys

Author: alc Date: Tue Sep 21 16:24:51 2010 New Revision: 212965 URL: http://svn.freebsd.org/changeset/base/212965 Log: Fix exec_imgact_shell()'s handling of two error cases: (1) Previously, if the first line of a script exceeded MAXSHELLCMDLEN characters, then exec_imgact_shell() silently

svn commit: r212868 - head/sys/vm

Author: alc Date: Sun Sep 19 17:43:22 2010 New Revision: 212868 URL: http://svn.freebsd.org/changeset/base/212868 Log: Make refinements to r212824. In particular, don't make vm_map_unlock_nodefer() part of the synchronization interface for maps. Add comments to vm_map_unlock_and_wait()

svn commit: r212873 - head/sys/vm

Author: alc Date: Sun Sep 19 19:42:04 2010 New Revision: 212873 URL: http://svn.freebsd.org/changeset/base/212873 Log: Allow a POSIX shared memory object that is opened for read but not for write to nonetheless be mapped PROT_WRITE and MAP_PRIVATE, i.e., copy-on-write. (This is a

Re: svn commit: r212281 - head/sys/vm

Kostik Belousov wrote: On Mon, Sep 13, 2010 at 12:30:29PM -0500, Alan Cox wrote: Kostik Belousov wrote: On Tue, Sep 07, 2010 at 12:23:45AM +, Ryan Stone wrote: Author: rstone Date: Tue Sep 7 00:23:45 2010 New Revision: 212281 URL: http://svn.freebsd.org/changeset/base

Re: svn commit: r212281 - head/sys/vm

Kostik Belousov wrote: On Tue, Sep 07, 2010 at 12:23:45AM +, Ryan Stone wrote: Author: rstone Date: Tue Sep 7 00:23:45 2010 New Revision: 212281 URL: http://svn.freebsd.org/changeset/base/212281 Log: In munmap() downgrade the vm_map_lock to a read lock before taking a read lock on

Re: svn commit: r212360 - head/sys/vm

Nathan Whitehorn wrote: Author: nwhitehorn Date: Thu Sep 9 13:32:58 2010 New Revision: 212360 URL: http://svn.freebsd.org/changeset/base/212360 Log: On architectures with non-tree-based page tables like PowerPC, every page in a range must be checked when calling pmap_remove(). Calling

svn commit: r211937 - in head: lib/libc/sys sys/sys sys/vm

Author: alc Date: Sat Aug 28 16:57:07 2010 New Revision: 211937 URL: http://svn.freebsd.org/changeset/base/211937 Log: Add the MAP_PREFAULT_READ option to mmap(2). Reviewed by: jhb, kib Modified: head/lib/libc/sys/mmap.2 head/sys/sys/mman.h head/sys/sys/param.h

svn commit: r210837 - head/sys/kern

Author: alc Date: Wed Aug 4 05:09:02 2010 New Revision: 210837 URL: http://svn.freebsd.org/changeset/base/210837 Log: In order for MAXVNODES_MAX to be an int on powerpc and sparc, we must cast PAGE_SIZE to an int. (Powerpc and sparc, unlike the other architectures, define PAGE_SIZE as a

svn commit: r210782 - head/sys/kern

Author: alc Date: Mon Aug 2 21:33:36 2010 New Revision: 210782 URL: http://svn.freebsd.org/changeset/base/210782 Log: Update the desiredvnodes calculation. In particular, make the part of the calculation that is based on the kernel's heap size more conservative. Hopefully, this will

svn commit: r210545 - in head/sys: compat/freebsd32 kern sys vm

Author: alc Date: Tue Jul 27 17:31:03 2010 New Revision: 210545 URL: http://svn.freebsd.org/changeset/base/210545 Log: Introduce exec_alloc_args(). The objective being to encapsulate the details of the string buffer allocation in one place. Eliminate the portion of the string buffer

svn commit: r210555 - in head/sys: amd64/linux32 i386/linux kern sys

Author: alc Date: Wed Jul 28 04:47:40 2010 New Revision: 210555 URL: http://svn.freebsd.org/changeset/base/210555 Log: The interpreter name should no longer be treated as a buffer that can be overwritten. (This change should have been included in r210545.) Submitted by: kib Modified:

svn commit: r210475 - in head/sys: compat/freebsd32 kern vm

Author: alc Date: Sun Jul 25 17:43:38 2010 New Revision: 210475 URL: http://svn.freebsd.org/changeset/base/210475 Log: Change the order in which the file name, arguments, environment, and shell command are stored in exec*()'s demand-paged string buffer. For a buildworld on an 8GB amd64

Re: svn commit: r210460 - head/sys/mips/include

Warner Losh wrote: Author: imp Date: Sun Jul 25 04:19:05 2010 New Revision: 210460 URL: http://svn.freebsd.org/changeset/base/210460 Log: Get N64 building by defining VM_FREELIST_DIRECT to be VM_FREELIST_DEFAULT. I believe this is correct, since KX is set in n64, and thus all RAM can be

Re: svn commit: r210429 - in head/sys: amd64/linux32 compat/freebsd32 kern sys

Kostik Belousov wrote: On Fri, Jul 23, 2010 at 06:58:27PM +, Alan Cox wrote: Author: alc Date: Fri Jul 23 18:58:27 2010 New Revision: 210429 URL: http://svn.freebsd.org/changeset/base/210429 Log: Eliminate a little bit of duplicated code. I think that amd64 copy

svn commit: r210124 - head/sys/amd64/amd64

Author: alc Date: Thu Jul 15 16:25:51 2010 New Revision: 210124 URL: http://svn.freebsd.org/changeset/base/210124 Log: Optimize pmap_remove()'s handling of PG_G mappings. Specifically, instead of calling pmap_invalidate_page() for each PG_G mapping, call pmap_invalidate_range() for each

svn commit: r209902 - head/sys/kern

Author: alc Date: Sun Jul 11 20:11:44 2010 New Revision: 209902 URL: http://svn.freebsd.org/changeset/base/209902 Log: Change the implementation of vm_hold_free_pages() so that it performs at most one call to pmap_qremove(), and thus one TLB shootdown, instead of one call and TLB shootdown

svn commit: r209887 - in head/sys: amd64/amd64 i386/i386

Author: alc Date: Sat Jul 10 18:22:44 2010 New Revision: 209887 URL: http://svn.freebsd.org/changeset/base/209887 Log: Reduce the number of global TLB shootdowns generated by pmap_qenter(). Specifically, teach pmap_qenter() to recognize the case when it is being asked to replace a mapping

svn commit: r209861 - in head/sys: kern vm

Author: alc Date: Fri Jul 9 19:38:30 2010 New Revision: 209861 URL: http://svn.freebsd.org/changeset/base/209861 Log: Add support for the VM_ALLOC_COUNT() hint to vm_page_alloc(). Consequently, the maintenance of vm_pageout_deficit can be localized to just two places: vm_page_alloc() and

svn commit: r209789 - head/sys/amd64/amd64

Author: alc Date: Thu Jul 8 03:35:00 2010 New Revision: 209789 URL: http://svn.freebsd.org/changeset/base/209789 Log: Correctly maintain the per-cpu field curpmap on amd64 just like we do on i386. The consequences of not doing so on amd64 became apparent with the introduction of the

svn commit: r209669 - in head: share/man/man9 sys/vm

Author: alc Date: Sat Jul 3 18:25:37 2010 New Revision: 209669 URL: http://svn.freebsd.org/changeset/base/209669 Log: Improve the comment and man page for vm_page_alloc(). Specifically, document one of the optional flags; clarify which of the flags are optional (and which are not), and

svn commit: r209647 - head/sys/vm

Author: alc Date: Fri Jul 2 15:02:51 2010 New Revision: 209647 URL: http://svn.freebsd.org/changeset/base/209647 Log: With the demise of page coloring, the page queue macros no longer serve any useful purpose. Eliminate them. Reviewed by: kib Modified: head/sys/vm/vm_contig.c

svn commit: r209648 - head/sys/kern

Author: alc Date: Fri Jul 2 15:50:30 2010 New Revision: 209648 URL: http://svn.freebsd.org/changeset/base/209648 Log: Use vm_page_next() instead of vm_page_lookup() in exec_map_first_page() because vm_page_next() is faster. Modified: head/sys/kern/kern_exec.c Modified:

svn commit: r209650 - head/sys/vm

Author: alc Date: Fri Jul 2 19:59:18 2010 New Revision: 209650 URL: http://svn.freebsd.org/changeset/base/209650 Log: Use vm_page_prev() instead of vm_page_lookup() in the implementation of vm_fault()'s automatic delete-behind heuristic. vm_page_prev() is typically faster. Modified:

svn commit: r209651 - head/sys/vm

Author: alc Date: Fri Jul 2 20:56:22 2010 New Revision: 209651 URL: http://svn.freebsd.org/changeset/base/209651 Log: Push down the acquisition of the page queues lock into vm_pageout_page_stats(). In particular, avoid acquiring the page queues lock unless iterating over the active queue.

svn commit: r209610 - head/sys/vm

Author: alc Date: Wed Jun 30 17:20:33 2010 New Revision: 209610 URL: http://svn.freebsd.org/changeset/base/209610 Log: Simplify entry to vm_pageout_clean(). Expect the page to be locked. Previously, the caller unlocked the page, and vm_pageout_clean() immediately reacquired the page lock.

svn commit: r209605 - head/sys/kern

Author: alc Date: Wed Jun 30 04:52:42 2010 New Revision: 209605 URL: http://svn.freebsd.org/changeset/base/209605 Log: Improve bufdone_finish()'s handling of the bogus page. Specifically, if one or more mappings to the bogus page must be replaced, call pmap_qenter() just once. Previously,

svn commit: r209407 - head/sys/vm

Author: alc Date: Mon Jun 21 23:27:24 2010 New Revision: 209407 URL: http://svn.freebsd.org/changeset/base/209407 Log: Introduce vm_page_next() and vm_page_prev(), and use them in vm_pageout_clean(). When iterating over a range of pages, these functions can be cheaper than vm_page_lookup()

svn commit: r209320 - in head/sys/fs: nwfs smbfs

Author: alc Date: Fri Jun 18 22:12:12 2010 New Revision: 209320 URL: http://svn.freebsd.org/changeset/base/209320 Log: Eliminate unnecessary page queues locking. Modified: head/sys/fs/nwfs/nwfs_io.c head/sys/fs/smbfs/smbfs_io.c Modified: head/sys/fs/nwfs/nwfs_io.c

svn commit: r209321 - head/sys/dev/cxgb/ulp/tom

Author: alc Date: Fri Jun 18 23:14:16 2010 New Revision: 209321 URL: http://svn.freebsd.org/changeset/base/209321 Log: Catch up with the page and page queues locking changes. Modified: head/sys/dev/cxgb/ulp/tom/cxgb_vm.c Modified: head/sys/dev/cxgb/ulp/tom/cxgb_vm.c

Re: svn commit: r209226 - head/sys/fs/tmpfs

On 6/16/2010 7:43 AM, Pawel Jakub Dawidek wrote: On Wed, Jun 16, 2010 at 12:41:21AM +, Alan Cox wrote: Author: alc Date: Wed Jun 16 00:41:21 2010 New Revision: 209226 URL: http://svn.freebsd.org/changeset/base/209226 Log: Eliminate unnecessary page queues locking

Re: svn commit: r209226 - head/sys/fs/tmpfs

On 6/16/2010 7:43 AM, Pawel Jakub Dawidek wrote: On Wed, Jun 16, 2010 at 12:41:21AM +, Alan Cox wrote: Author: alc Date: Wed Jun 16 00:41:21 2010 New Revision: 209226 URL: http://svn.freebsd.org/changeset/base/209226 Log: Eliminate unnecessary page queues locking

svn commit: r209211 - head/sys/dev/md

Author: alc Date: Tue Jun 15 18:37:31 2010 New Revision: 209211 URL: http://svn.freebsd.org/changeset/base/209211 Log: Eliminate unnecessary page queues locking. Modified: head/sys/dev/md/md.c Modified: head/sys/dev/md/md.c

svn commit: r209226 - head/sys/fs/tmpfs

Author: alc Date: Wed Jun 16 00:41:21 2010 New Revision: 209226 URL: http://svn.freebsd.org/changeset/base/209226 Log: Eliminate unnecessary page queues locking. Modified: head/sys/fs/tmpfs/tmpfs_vnops.c Modified: head/sys/fs/tmpfs/tmpfs_vnops.c

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