)]}' { "log": [ { "commit": "e984bb43f7450312ba66fe0e67a99efa6be3b246", "tree": "54c86240172136fc81c773f71cd70eda54fed6f2", "parents": [ "ae57a856429dd932c547530df1b234eb7e642297" ], "author": { "name": "Bob Picco", "email": "bob.picco@hp.com", "time": "Sat May 20 15:00:31 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun May 21 12:59:22 2006 -0700" }, "message": "[PATCH] Align the node_mem_map endpoints to a MAX_ORDER boundary\n\nAndy added code to buddy allocator which does not require the zone\u0027s\nendpoints to be aligned to MAX_ORDER. An issue is that the buddy allocator\nrequires the node_mem_map\u0027s endpoints to be MAX_ORDER aligned. Otherwise\n__page_find_buddy could compute a buddy not in node_mem_map for partial\nMAX_ORDER regions at zone\u0027s endpoints. page_is_buddy will detect that\nthese pages at endpoints are not PG_buddy (they were zeroed out by bootmem\nallocator and not part of zone). Of course the negative here is we could\nwaste a little memory but the positive is eliminating all the old checks\nfor zone boundary conditions.\n\nSPARSEMEM won\u0027t encounter this issue because of MAX_ORDER size constraint\nwhen SPARSEMEM is configured. ia64 VIRTUAL_MEM_MAP doesn\u0027t need the logic\neither because the holes and endpoints are handled differently. This\nleaves checking alloc_remap and other arches which privately allocate for\nnode_mem_map.\n\nSigned-off-by: Bob Picco \u003cbob.picco@hp.com\u003e\nAcked-by: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Andy Whitcroft \u003capw@shadowen.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "bdd804f478a0cc74bf7db8e9f9d5fd379d1b31ca", "tree": "2b8f083b1ca698c0f9321b3714dab036d2531f29", "parents": [ "593ee20766921fec643194dff829e17f30552220" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Sat May 20 15:00:09 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun May 21 12:59:18 2006 -0700" }, "message": "[PATCH] Cpuset: might sleep checking zones allowed fix\n\nFix a couple of infrequently encountered \u0027sleeping function called from\ninvalid context\u0027 in the cpuset hooks in __alloc_pages. Could sleep while\ninterrupts disabled.\n\nThe routine cpuset_zone_allowed() is called by code in mm/page_alloc.c\n__alloc_pages() to determine if a zone is allowed in the current tasks\ncpuset. This routine can sleep, for certain GFP_KERNEL allocations, if the\nzone is on a memory node not allowed in the current cpuset, but might be\nallowed in a parent cpuset.\n\nBut we can\u0027t sleep in __alloc_pages() if in interrupt, nor if called for a\nGFP_ATOMIC request (__GFP_WAIT not set in gfp_flags).\n\nThe rule was intended to be:\n Don\u0027t call cpuset_zone_allowed() if you can\u0027t sleep, unless you\n pass in the __GFP_HARDWALL flag set in gfp_flag, which disables\n the code that might scan up ancestor cpusets and sleep.\n\nThis rule was being violated in a couple of places, due to a bogus change\nmade (by myself, pj) to __alloc_pages() as part of the November 2005 effort\nto cleanup its logic, and also due to a later fix to constrain which swap\ndaemons were awoken.\n\nThe bogus change can be seen at:\n http://linux.derkeiler.com/Mailing-Lists/Kernel/2005-11/4691.html\n [PATCH 01/05] mm fix __alloc_pages cpuset ALLOC_* flags\n\nThis was first noticed on a tight memory system, in code that was disabling\ninterrupts and doing allocation requests with __GFP_WAIT not set, which\nresulted in __might_sleep() writing complaints to the log \"Debug: sleeping\nfunction called ...\", when the code in cpuset_zone_allowed() tried to take\nthe callback_sem cpuset semaphore.\n\nWe haven\u0027t seen a system hang on this \u0027might_sleep\u0027 yet, but we are at\ndecent risk of seeing it fairly soon, especially since the additional\ncpuset_zone_allowed() check was added, conditioning wakeup_kswapd(), in\nMarch 2006.\n\nSpecial thanks to Dave Chinner, for figuring this out, and a tip of the hat\nto Nick Piggin who warned me of this back in Nov 2005, before I was ready\nto listen.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ac924c6034d9095f95ee889f7e31bbb9145da0c2", "tree": "2db4fc64a008ff2b81a0faf381d8c21ccc5006b2", "parents": [ "5afdbd6e84c7fbdaa7cfde4cbee0d3a5f4f56da2" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Mon May 15 09:43:59 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon May 15 11:20:55 2006 -0700" }, "message": "[PATCH] setup_per_zone_pages_min() overflow fix\n\nAs pointed out in http://bugzilla.kernel.org/show_bug.cgi?id\u003d6490, this\nfunction can experience overflows on 32-bit machines, causing our response to\nchanged values of min_free_kbytes to go whacky.\n\nFixing it efficiently is all too hard, so fix it with 64-bit math instead.\n\nCc: Ake Sandgren \u003cake.sandgren@hpc2n.umu.se\u003e\nCc: Martin Bligh \u003cmbligh@google.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "83d722f7e198b034699b1500d98729beff930efd", "tree": "7d790a2fd62165373ec7bacde704837288e0bec3", "parents": [ "649bbaa484bcdce94f40a1b97a6a2ded0549e8a2" ], "author": { "name": "Chandra Seetharaman", "email": "sekharan@us.ibm.com", "time": "Mon Apr 24 19:35:21 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Apr 26 08:30:03 2006 -0700" }, "message": "[PATCH] Remove __devinit and __cpuinit from notifier_call definitions\n\nFew of the notifier_chain_register() callers use __init in the definition\nof notifier_call. It is incorrect as the function definition should be\navailable after the initializations (they do not unregister them during\ninitializations).\n\nThis patch fixes all such usages to _not_ have the notifier_call __init\nsection.\n\nSigned-off-by: Chandra Seetharaman \u003csekharan@us.ibm.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6aa3001b239b387d98a7f945e4a51edeb59e4f2d", "tree": "df3901329baddd8c37a661ad595fa52821dee8ef", "parents": [ "013159227b840dfd441bd2e4c8b4d77ffb3cc42e" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Tue Apr 18 22:20:52 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Apr 19 09:13:50 2006 -0700" }, "message": "[PATCH] page_alloc.c: buddy handling cleanup\n\nFix up some whitespace damage.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "cb45b0e966cbe747b6189c15b108901cc7d6c97c", "tree": "0402d4809ec175e80b083f7a713ec32c0109baad", "parents": [ "e23ca00bf1b1c6c0f04702cb4d29e275ab8dc330" ], "author": { "name": "Hideo AOKI", "email": "haoki@redhat.com", "time": "Mon Apr 10 22:52:59 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Apr 11 06:18:32 2006 -0700" }, "message": "[PATCH] overcommit: add calculate_totalreserve_pages()\n\nThese patches are an enhancement of OVERCOMMIT_GUESS algorithm in\n__vm_enough_memory().\n\n- why the kernel needed patching\n\n When the kernel can\u0027t allocate anonymous pages in practice, currnet\n OVERCOMMIT_GUESS could return success. This implementation might be\n the cause of oom kill in memory pressure situation.\n\n If the Linux runs with page reservation features like\n /proc/sys/vm/lowmem_reserve_ratio and without swap region, I think\n the oom kill occurs easily.\n\n- the overall design approach in the patch\n\n When the OVERCOMMET_GUESS algorithm calculates number of free pages,\n the reserved free pages are regarded as non-free pages.\n\n This change helps to avoid the pitfall that the number of free pages\n become less than the number which the kernel tries to keep free.\n\n- testing results\n\n I tested the patches using my test kernel module.\n\n If the patches aren\u0027t applied to the kernel, __vm_enough_memory()\n returns success in the situation but autual page allocation is\n failed.\n\n On the other hand, if the patches are applied to the kernel, memory\n allocation failure is avoided since __vm_enough_memory() returns\n failure in the situation.\n\n I checked that on i386 SMP 16GB memory machine. I haven\u0027t tested on\n nommu environment currently.\n\nThis patch adds totalreserve_pages for __vm_enough_memory().\n\nCalculate_totalreserve_pages() checks maximum lowmem_reserve pages and\npages_high in each zone. Finally, the function stores the sum of each\nzone to totalreserve_pages.\n\nThe totalreserve_pages is calculated when the VM is initilized.\nAnd the variable is updated when /proc/sys/vm/lowmem_reserve_raito\nor /proc/sys/vm/min_free_kbytes are changed.\n\nSigned-off-by: Hideo Aoki \u003chaoki@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "676165a8af7167f488abdcce6851a9bc36e83254", "tree": "a9b2b8dc155b48ce073b5ada31f2ac0694118e69", "parents": [ "c3a9d6541f84ac3ff566982d08389b87c1c36b4e" ], "author": { "name": "Nick Piggin", "email": "piggin@cyberone.com.au", "time": "Mon Apr 10 11:21:48 2006 +1000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Apr 10 10:16:37 2006 -0700" }, "message": "[PATCH] Fix buddy list race that could lead to page lru list corruptions\n\nRohit found an obscure bug causing buddy list corruption.\n\npage_is_buddy is using a non-atomic test (PagePrivate \u0026\u0026 page_count \u003d\u003d 0)\nto determine whether or not a free page\u0027s buddy is itself free and in the\nbuddy lists.\n\nEach of the conjuncts may be true at different times due to unrelated\nconditions, so the non-atomic page_is_buddy test may find each conjunct to\nbe true even if they were not both true at the same time (ie. the page was\nnot on the buddy lists).\n\nSigned-off-by: Martin Bligh \u003cmbligh@google.com\u003e\nSigned-off-by: Rohit Seth \u003crohitseth@google.com\u003e\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ae0f15fb91274e67d78836d38c99ec363df33073", "tree": "bfaa065faf772c42e1875c9e5f4b000cf4b1d241", "parents": [ "3571761fe49d960bb720c2308ffb9401f0a5e161" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Mon Mar 27 01:16:01 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:44:48 2006 -0800" }, "message": "[PATCH] for_each_online_pgdat: remove pgdat_list\n\nBy using for_each_online_pgdat(), pgdat_list is not necessary now. This patch\nremoves it.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ec936fc563715a9e2b2e363eb060655b49529325", "tree": "72e77aefeeda3c6ff396f080a5c6a82f25d52bf0", "parents": [ "679bc9fbb508a0aac9539b2de747eb5849feb428" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Mon Mar 27 01:15:59 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:44:48 2006 -0800" }, "message": "[PATCH] for_each_online_pgdat: renaming for_each_pgdat\n\nReplace for_each_pgdat() with for_each_online_pgdat().\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a0140c1d85637ee5f4ea7c78f066e3611a6a79dc", "tree": "7a52892e57ff7a97a3aabf920891b68ca8bf578a", "parents": [ "0ecd702bcb924d5fb7f687e09986f688336ac896" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Mon Mar 27 01:15:55 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:44:47 2006 -0800" }, "message": "[PATCH] remove zone_mem_map\n\nThis patch removes zone_mem_map.\n\npfn_to_page uses pgdat, page_to_pfn uses zone. page_to_pfn can use pgdat\ninstead of zone, which is only one user of zone_mem_map. By modifing it,\nwe can remove zone_mem_map.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nCc: Christoph Lameter \u003cchristoph@lameter.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a117e66ed45ac0569c039ea60bd7a9a61e031858", "tree": "292367ab930f83c418c34d4c46f95717e5e6394e", "parents": [ "b06be912a3ad68c69dba0ed6e92723140020e392" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Mon Mar 27 01:15:25 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Mar 27 08:44:44 2006 -0800" }, "message": "[PATCH] unify pfn_to_page: generic functions\n\nThere are 3 memory models, FLATMEM, DISCONTIGMEM, SPARSEMEM.\nEach arch has its own page_to_pfn(), pfn_to_page() for each models.\nBut most of them can use the same arithmetic.\n\nThis patch adds asm-generic/memory_model.h, which includes generic\npage_to_pfn(), pfn_to_page() definitions for each memory model.\n\nWhen CONFIG_OUT_OF_LINE_PFN_TO_PAGE\u003dy, out-of-line functions are\nused instead of macro. This is enabled by some archs and reduces\ntext size.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Richard Henderson \u003crth@twiddle.net\u003e\nCc: Ivan Kokshaysky \u003cink@jurassic.park.msu.ru\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: Ian Molton \u003cspyro@f2s.com\u003e\nCc: Mikael Starvik \u003cstarvik@axis.com\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Yoshinori Sato \u003cysato@users.sourceforge.jp\u003e\nCc: Hirokazu Takata \u003ctakata.hirokazu@renesas.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: Kazumoto Kojima \u003ckkojima@rr.iij4u.or.jp\u003e\nCc: Richard Curnow \u003crc@rc0.org.uk\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Jeff Dike \u003cjdike@addtoit.com\u003e\nCc: Paolo \u0027Blaisorblade\u0027 Giarrusso \u003cblaisorblade@yahoo.it\u003e\nCc: Miles Bader \u003cuclinux-v850@lsi.nec.co.jp\u003e\nCc: Chris Zankel \u003cchris@zankel.net\u003e\nCc: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6e692ed37a507e18d8afe8e5faebd8c4722c5f12", "tree": "9178f07eb643123d20a95e4ec08477f2c85bd9ea", "parents": [ "962749af67b145c57917bfbff3c303ebd7d5988c" ], "author": { "name": "John Hawkes", "email": "hawkes@sgi.com", "time": "Sat Mar 25 03:08:02 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Mar 25 08:22:58 2006 -0800" }, "message": "[PATCH] fix alloc_large_system_hash() roundup\n\nThe \"rounded up to nearest power of 2 in size\" algorithm in\nalloc_large_system_hash is not correct. As coded, it takes an otherwise\nacceptable power-of-2 value and doubles it. For example, we see the error\nif we boot with thash_entries\u003d2097152 which produces a hash table with\n4194304 entries.\n\nSigned-off-by: John Hawkes \u003chawkes@sgi.com\u003e\nCc: Roland Dreier \u003crdreier@cisco.com\u003e\nCc: \"Chen, Kenneth W\" \u003ckenneth.w.chen@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f5335c0f1bcba16907972b66b905f62402433e23", "tree": "9db1cf38a34b3dc9559e785d910e95d7002c91e2", "parents": [ "d784124cfe9377c1a24d8efba31401f81c7c11f9" ], "author": { "name": "Anton Blanchard", "email": "anton@samba.org", "time": "Sat Mar 25 03:06:49 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Mar 25 08:22:50 2006 -0800" }, "message": "[PATCH] quieten zone_pcp_init\n\nIn zone_pcp_init we print out all zones even if they are empty:\n\nOn node 0 totalpages: 245760\n DMA zone: 245760 pages, LIFO batch:31\n DMA32 zone: 0 pages, LIFO batch:0\n Normal zone: 0 pages, LIFO batch:0\n HighMem zone: 0 pages, LIFO batch:0\n\nTo conserve dmesg space why not print only the non zero zones.\n\nSigned-off-by: Anton Blanchard \u003canton@samba.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0b1303fcf23678ee1785841fb0c770a35cd0833c", "tree": "78b90c2766f8468b39363bd4525ebaa9b192aa8f", "parents": [ "95c3832272fc77ea3e31f6382f82ba17be985cc7" ], "author": { "name": "Christoph Lameter", "email": "clameter@engr.sgi.com", "time": "Fri Mar 24 03:15:59 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 24 07:33:22 2006 -0800" }, "message": "[PATCH] cpusets: only wakeup kswapd for zones in the current cpuset\n\nIf we get under some memory pressure in a cpuset (we only scan zones that\nare in the cpuset for memory) then kswapd is woken up for all zones. This\npatch only wakes up kswapd in zones that are part of the current cpuset.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nAcked-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "879336c3930ae9273ea1c45214cb8adae0ce494a", "tree": "24fbb8aff19f6747b6cc40cb05cbe9f4c21f85e3", "parents": [ "b18e7e654d7af741d2bf34a90dc34128d0217fea" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Wed Mar 22 00:09:08 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Mar 22 07:54:06 2006 -0800" }, "message": "[PATCH] drain_node_pages: interrupt latency reduction / optimization\n\n1. Only disable interrupts if there is actually something to free\n\n2. Only dirty the pcp cacheline if we actually freed something.\n\n3. Disable interrupts for each single pcp and not for cleaning\n all the pcps in all zones of a node.\n\ndrain_node_pages is called every 2 seconds from cache_reap. This\nfix should avoid most disabling of interrupts.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6626c5d53bc45c59798628677ba5606f02e371f3", "tree": "7be40e7709b1887648a649fd6b5c036638c4608b", "parents": [ "17cf44064ae744f081309108fa67f0e942b10167" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Wed Mar 22 00:08:42 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Mar 22 07:54:02 2006 -0800" }, "message": "[PATCH] mm: prep_zero_page() in irq is a bug\n\nprep_zero_page() uses KM_USER0 and hence may not be used from IRQ context, at\nleast for highmem pages.\n\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Christoph Lameter \u003cchristoph@lameter.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "17cf44064ae744f081309108fa67f0e942b10167", "tree": "9073ac7498b559f5d0d36843e305a39eecc6436b", "parents": [ "7835e98b2e3c66dba79cb0ff8ebb90a2fe030c29" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Wed Mar 22 00:08:41 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Mar 22 07:54:02 2006 -0800" }, "message": "[PATCH] mm: cleanup prep_ stuff\n\nMove the prep_ stuff into prep_new_page.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7835e98b2e3c66dba79cb0ff8ebb90a2fe030c29", "tree": "405a96eade34845dabe2f125b6c5eb095846869d", "parents": [ "70dc991d66cac40fdb07346dba2b5d862d732c34" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Wed Mar 22 00:08:40 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Mar 22 07:54:02 2006 -0800" }, "message": "[PATCH] remove set_page_count() outside mm/\n\nset_page_count usage outside mm/ is limited to setting the refcount to 1.\nRemove set_page_count from outside mm/, and replace those users with\ninit_page_count() and set_page_refcounted().\n\nThis allows more debug checking, and tighter control on how code is allowed\nto play around with page-\u003e_count.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "84097518d1ecd2330f9488e4c2d09953a3340e74", "tree": "50981fe0584c456a1a86e6d7f611eec223b5f536", "parents": [ "0f8053a509ceba4a077a50ea7b77039b5559b428" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Wed Mar 22 00:08:34 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Mar 22 07:54:01 2006 -0800" }, "message": "[PATCH] mm: nommu use compound pages\n\nNow that compound page handling is properly fixed in the VM, move nommu\nover to using compound pages rather than rolling their own refcounting.\n\nnommu vm page refcounting is broken anyway, but there is no need to have\ndivergent code in the core VM now, nor when it gets fixed.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\n\n(Needs testing, please).\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "545b1ea9bfa5a8ca9af33d63144bd4f2faaea8dd", "tree": "deef747e0f08089a0cd14e09551efaddfad813f9", "parents": [ "9d41415221214ca4820b9464dfa548e2f20e7dd5" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Wed Mar 22 00:08:07 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Mar 22 07:53:58 2006 -0800" }, "message": "[PATCH] mm: cleanup bootmem\n\nThe bootmem code added to page_alloc.c duplicated some page freeing code\nthat it really doesn\u0027t need to because it is not so performance critical.\n\nWhile we\u0027re here, make prefetching work properly by actually prefetching\nthe page we\u0027re about to use before prefetching ahead to the next one (ie.\nget the most important transaction started first). Also prefetch just a\nsingle page ahead rather than leaving a gap of 16.\n\nJack Steiner reported no problems with SGI\u0027s ia64 simulator.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8dfcc9ba27e2ed257e5de9539f7f03e57c2c0e33", "tree": "aecaeb6a0b33c23f79dfcd2418e4a3881a29f2e2", "parents": [ "8e7a9aae91101916b86de07fafe3272ea8dc1f10" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Wed Mar 22 00:08:05 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Mar 22 07:53:57 2006 -0800" }, "message": "[PATCH] mm: split highorder pages\n\nHave an explicit mm call to split higher order pages into individual pages.\n Should help to avoid bugs and be more explicit about the code\u0027s intention.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Russell King \u003crmk@arm.linux.org.uk\u003e\nCc: David Howells \u003cdhowells@redhat.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Paul Mundt \u003clethal@linux-sh.org\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Chris Zankel \u003cchris@zankel.net\u003e\nSigned-off-by: Yoichi Yuasa \u003cyoichi_yuasa@tripeaks.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "5e9dace8d386def04219134d7160e8a778824764", "tree": "d74ca57577cc4872eb6bcf609e3c7f7d1a39fdf6", "parents": [ "674539115cc88473f623581e1d53c0e2ecef2179" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Wed Mar 22 00:08:01 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Mar 22 07:53:57 2006 -0800" }, "message": "[PATCH] mm: page_alloc less atomics\n\nMore atomic operation removal from page allocator\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b40607fc02f8248828d52d88f91b7d68df1933b0", "tree": "4e29b252e6bf8d520de092edfeb9bc60413d92cb", "parents": [ "68ed0040a8c9d06b73cda322a1f740749bd6e41a" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Wed Mar 22 00:07:39 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Mar 22 07:53:55 2006 -0800" }, "message": "[PATCH] __get_page_state() cpumask cleanup and fix\n\n__get_page_state() has an open-coded for_each_cpu_mask() loop in it.\n\nTidy that up, then notice that the code was buggy:\n\n\twhile (cpu \u003c NR_CPUS) {\n\t\tunsigned long *in, *out, off;\n\n\t\tif (!cpu_isset(cpu, *cpumask))\n\t\t\tcontinue;\n\nan obvious infinite loop. I guess we just never call it with a holey cpu\nmask.\n\nEven after my cpumask size-reduction work, this patch increases code size :(\n\nCc: Paul Jackson \u003cpj@sgi.com\u003e\nCc: Christoph Lameter \u003cclameter@engr.sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8fce4d8e3b9e3cf47cc8afeb6077e22ab795d989", "tree": "4930be5756f7a3893717d38f443f6261f11a1f60", "parents": [ "7b61fcda8a640bb87be23f9f09c1f24357b5c6e1" ], "author": { "name": "Christoph Lameter", "email": "clameter@engr.sgi.com", "time": "Thu Mar 09 17:33:54 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Mar 09 19:47:38 2006 -0800" }, "message": "[PATCH] slab: Node rotor for freeing alien caches and remote per cpu pages.\n\nThe cache reaper currently tries to free all alien caches and all remote\nper cpu pages in each pass of cache_reap. For a machines with large number\nof nodes (such as Altix) this may lead to sporadic delays of around ~10ms.\nInterrupts are disabled while reclaiming creating unacceptable delays.\n\nThis patch changes that behavior by adding a per cpu reap_node variable.\nInstead of attempting to free all caches, we free only one alien cache and\nthe per cpu pages from one remote node. That reduces the time spend in\ncache_reap. However, doing so will lengthen the time it takes to\ncompletely drain all remote per cpu pagesets and all alien caches. The\ntime needed will grow with the number of nodes in the system. All caches\nare drained when they overflow their respective capacity. So the drawback\nhere is only that a bit of memory may be wasted for awhile longer.\n\nDetails:\n\n1. Rename drain_remote_pages to drain_node_pages to allow the specification\n of the node to drain of pcp pages.\n\n2. Add additional functions init_reap_node, next_reap_node for NUMA\n that manage a per cpu reap_node counter.\n\n3. Add a reap_alien function that reaps only from the current reap_node.\n\nFor us this seems to be a critical issue. Holdoffs of an average of ~7ms\ncause some HPC benchmarks to slow down significantly. F.e. NAS parallel\nslows down dramatically. NAS parallel has a 12-16 seconds runtime w/o rotor\ncompared to 5.8 secs with the rotor patches. It gets down to 5.05 secs with\nthe additional interrupt holdoff reductions.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9b0f8b040acd8dfd23860754c0d09ff4f44e2cbc", "tree": "33c69908705c88b86f14d9e835b6dee6a9c3a31b", "parents": [ "9827b781f20828e5ceb911b879f268f78fe90815" ], "author": { "name": "Christoph Lameter", "email": "clameter@engr.sgi.com", "time": "Mon Feb 20 18:27:52 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Feb 20 20:00:09 2006 -0800" }, "message": "[PATCH] Terminate process that fails on a constrained allocation\n\nSome allocations are restricted to a limited set of nodes (due to memory\npolicies or cpuset constraints). If the page allocator is not able to find\nenough memory then that does not mean that overall system memory is low.\n\nIn particular going postal and more or less randomly shooting at processes\nis not likely going to help the situation but may just lead to suicide (the\nwhole system coming down).\n\nIt is better to signal to the process that no memory exists given the\nconstraints that the process (or the configuration of the process) has\nplaced on the allocation behavior. The process may be killed but then the\nsysadmin or developer can investigate the situation. The solution is\nsimilar to what we do when running out of hugepages.\n\nThis patch adds a check before we kill processes. At that point\nperformance considerations do not matter much so we just scan the zonelist\nand reconstruct a list of nodes. If the list of nodes does not contain all\nonline nodes then this is a constrained allocation and we should kill the\ncurrent process.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4cf808eb443ead42777a0230b73aec0cee7fb298", "tree": "2d6dac429fcfcf18c9837c8c34164eff03e46fec", "parents": [ "cfe91f9ce297e23e6fbdf61c02bdd8ab9af7c8a8" ], "author": { "name": "Linus Torvalds", "email": "torvalds@osdl.org", "time": "Fri Feb 17 20:38:21 2006 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Feb 17 13:27:06 2006 -0800" }, "message": "[PATCH] Handle holes in node mask in node fallback list setup\n\nChange the find_next_best_node algorithm to correctly skip\nover holes in the node online mask. Previously it would not handle\nmissing nodes correctly and cause crashes at boot.\n\n[Written by Linus, tested by AK]\n\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "d98c7a09843621f1b145ca5ae8ed03ff04085edb", "tree": "764b943efb177ca506fad61a63bb9e8cbf56a3a7", "parents": [ "41d78ba55037468e6c86c53e3076d1a74841de39" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Tue Feb 14 13:52:59 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Feb 14 16:09:33 2006 -0800" }, "message": "[PATCH] compound page: default destructor\n\nSomehow I imagined that calling a NULL destructor would free a compound page\nrather than oopsing. No, we must supply a default destructor, __free_pages_ok\nusing the order noted by prep_compound_page. hugetlb can still replace this\nas before with its own free_huge_page pointer.\n\nThe case that needs this is not common: rarely does put_compound_page\u0027s\nput_page_testzero bring the count down to 0. But if get_user_pages is applied\nto some part of a compound page, without immediate release (e.g. AIO or\nInfiniband), then it\u0027s possible for its put_page to come after the containing\nvma has been unmapped and the driver done its free_pages.\n\nThat\u0027s just the kind of case compound pages are supposed to be guarding\nagainst (but Nick points out, nor did PageReserved handle this right).\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "41d78ba55037468e6c86c53e3076d1a74841de39", "tree": "d970f18d18532009b17c736583429401dbd64ade", "parents": [ "7277232374680595cdbc774fd246b206f56db015" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Tue Feb 14 13:52:58 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Feb 14 16:09:33 2006 -0800" }, "message": "[PATCH] compound page: use page[1].lru\n\nIf a compound page has its own put_page_testzero destructor (the only current\nexample is free_huge_page), that is noted in page[1].mapping of the compound\npage. But that\u0027s rather a poor place to keep it: functions which call\nset_page_dirty_lock after get_user_pages (e.g. Infiniband\u0027s\n__ib_umem_release) ought to be checking first, otherwise set_page_dirty is\nliable to crash on what\u0027s not the address of a struct address_space.\n\nAnd now I\u0027m about to make that worse: it turns out that every compound page\nneeds a destructor, so we can no longer rely on hugetlb pages going their own\nspecial way, to avoid further problems of page-\u003emapping reuse. For example,\nnot many people know that: on 50% of i386 -Os builds, the first tail page of a\ncompound page purports to be PageAnon (when its destructor has an odd\naddress), which surprises page_add_file_rmap.\n\nKeep the compound page destructor in page[1].lru.next instead. And to free up\nthe common pairing of mapping and index, also move compound page order from\nindex to lru.prev. Slab reuses page-\u003elru too: but if we ever need slab to use\ncompound pages, it can easily stack its use above this.\n\n(akpm: decoded version of the above: the tail pages of a compound page now\nhave -\u003emapping\u003d\u003dNULL, so there\u0027s no need for the set_page_dirty[_lock]()\ncaller to check that they\u0027re not compund pages before doing the dirty).\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "88a2a4ac6b671a4b0dd5d2d762418904c05f4104", "tree": "8c30052a0d7fadec37c785a42a71b28d0a9c5fcf", "parents": [ "cef5076987dd545ac74f4efcf1c962be8eac34b0" ], "author": { "name": "Eric Dumazet", "email": "dada1@cosmosbay.com", "time": "Sat Feb 04 23:27:36 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Feb 05 11:06:51 2006 -0800" }, "message": "[PATCH] percpu data: only iterate over possible CPUs\n\npercpu_data blindly allocates bootmem memory to store NR_CPUS instances of\ncpudata, instead of allocating memory only for possible cpus.\n\nAs a preparation for changing that, we need to convert various 0 -\u003e NR_CPUS\nloops to use for_each_cpu().\n\n(The above only applies to users of asm-generic/percpu.h. powerpc has gone it\nalone and is presently only allocating memory for present CPUs, so it\u0027s\ncurrently corrupting memory).\n\nSigned-off-by: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: James Bottomley \u003cJames.Bottomley@steeleye.com\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Jens Axboe \u003caxboe@suse.de\u003e\nCc: Anton Blanchard \u003canton@samba.org\u003e\nAcked-by: William Irwin \u003cwli@holomorphy.com\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6292d9aaf3047f1abd970bc64ab6d952eda258ac", "tree": "2ea2e47572ee8addca7624c6d1e0823449f6f58d", "parents": [ "88356e908521a84b2220c9e8850d1a356a851aa9" ], "author": { "name": "Ashok Raj", "email": "ashok.raj@intel.com", "time": "Wed Feb 01 03:04:44 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Feb 01 08:53:09 2006 -0800" }, "message": "[PATCH] __cpuinit functions wrongly marked __meminit\n\n__meminit has overzelously been modified and crept its way into marking\ncpuup callbacks as __meminit.\n\nSigned-off-by: Ashok Raj \u003cashok.raj@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9eeff2395e3cfd05c9b2e6074ff943a34b0c5c21", "tree": "20160098ec6ed8738cfecfc5f81181ad22b44e60", "parents": [ "f1fd1067ece574ab56e4a70878b9a5a1ed4c3c42" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Wed Jan 18 17:42:31 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jan 18 19:20:17 2006 -0800" }, "message": "[PATCH] Zone reclaim: Reclaim logic\n\nSome bits for zone reclaim exists in 2.6.15 but they are not usable. This\npatch fixes them up, removes unused code and makes zone reclaim usable.\n\nZone reclaim allows the reclaiming of pages from a zone if the number of\nfree pages falls below the watermarks even if other zones still have enough\npages available. Zone reclaim is of particular importance for NUMA\nmachines. It can be more beneficial to reclaim a page than taking the\nperformance penalties that come with allocating a page on a remote zone.\n\nZone reclaim is enabled if the maximum distance to another node is higher\nthan RECLAIM_DISTANCE, which may be defined by an arch. By default\nRECLAIM_DISTANCE is 20. 20 is the distance to another node in the same\ncomponent (enclosure or motherboard) on IA64. The meaning of the NUMA\ndistance information seems to vary by arch.\n\nIf zone reclaim is not successful then no further reclaim attempts will\noccur for a certain time period (ZONE_RECLAIM_INTERVAL).\n\nThis patch was discussed before. See\n\nhttp://marc.theaimsgroup.com/?l\u003dlinux-kernel\u0026m\u003d113519961504207\u0026w\u003d2\nhttp://marc.theaimsgroup.com/?l\u003dlinux-kernel\u0026m\u003d113408418232531\u0026w\u003d2\nhttp://marc.theaimsgroup.com/?l\u003dlinux-kernel\u0026m\u003d113389027420032\u0026w\u003d2\nhttp://marc.theaimsgroup.com/?l\u003dlinux-kernel\u0026m\u003d113380938612205\u0026w\u003d2\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c09b42404d29c8a9266f8186632330dc8474bf2e", "tree": "26477ddbd49e6de7ef16e21d7a7440b9b9f11c57", "parents": [ "44df75e629106efcada087cead6c3f33ed6bcc60" ], "author": { "name": "Matt Tolentino", "email": "metolent@cs.vt.edu", "time": "Tue Jan 17 07:03:44 2006 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Jan 16 23:18:35 2006 -0800" }, "message": "[PATCH] x86_64: add __meminit for memory hotplug\n\nAdd __meminit to the __init lineup to ensure functions default\nto __init when memory hotplug is not enabled. Replace __devinit\nwith __meminit on functions that were changed when the memory\nhotplug code was introduced.\n\nSigned-off-by: Matt Tolentino \u003cmatthew.e.tolentino@intel.com\u003e\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "cbe8dd4af2967ee1c2d54ec9d4db35cf3ecc98d3", "tree": "144660e46384377201583c9aeb4723ebfcf4af11", "parents": [ "1edf80d347387405ff4e8934d194d75f57a3caef" ], "author": { "name": "Greg Ungerer", "email": "gerg@snapgear.com", "time": "Thu Jan 12 01:05:24 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jan 12 09:08:49 2006 -0800" }, "message": "[PATCH] memmap_init_zone(): remove uneccesary page++\n\nRemove unecessary page++ from memmap_init_zone loop.\n\nSigned-off-by: Greg Ungerer \u003cgerg@uclinux.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4eac915d02453e81a32595cd7423492c81337a26", "tree": "2c652730cdf2cb0015cf59a8f75506c917685091", "parents": [ "7365f3d169a1eae00e713c1a4eea90e86415dcc5" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Wed Jan 11 12:17:19 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jan 11 18:42:09 2006 -0800" }, "message": "[PATCH] mm: gfp_atomic comments\n\nClarify in comments that GFP_ATOMIC means both \"don\u0027t sleep\" and \"use\nemergency pools\", hence both ALLOC_HARDER and ALLOC_HIGH.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7365f3d169a1eae00e713c1a4eea90e86415dcc5", "tree": "2071690e80631e38a732657e5debb83b0eedc12a", "parents": [ "45ed344cc7b6456856b4ae5e3d81cdb18b98f8ad" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Wed Jan 11 12:17:18 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jan 11 18:42:08 2006 -0800" }, "message": "[PATCH] Restore KERN_EMERG to each line printed by bad_page\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a4fc7ab1d065a9dd89ed0e74439ef87d4a16e980", "tree": "6312597ad183ee45e8769b1bc5b0035bfa681d64", "parents": [ "a8b9ee7396ccc8db3bdb4108993556acbe2d3527" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Wed Jan 11 14:41:26 2006 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jan 11 08:14:16 2006 -0800" }, "message": "[PATCH] fix/simplify mutex debugging code\n\nLet\u0027s switch mutex_debug_check_no_locks_freed() to take (addr, len) as\narguments instead, since all its callers were just calculating the \u0027to\u0027\naddress for themselves anyway... (and sometimes doing so badly).\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "de5097c2e73f826302cd8957c225b3725e0c7553", "tree": "3d56ab6fd891088ac55a9ef529faf4360391a22f", "parents": [ "408894ee4dd4debfdedd472eb4d8414892fc90f6" ], "author": { "name": "Ingo Molnar", "email": "mingo@elte.hu", "time": "Mon Jan 09 15:59:21 2006 -0800" }, "committer": { "name": "Ingo Molnar", "email": "mingo@hera.kernel.org", "time": "Mon Jan 09 15:59:21 2006 -0800" }, "message": "[PATCH] mutex subsystem, more debugging code\n\nmore mutex debugging: check for held locks during memory freeing,\ntask exit, enable sysrq printouts, etc.\n\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Arjan van de Ven \u003carjan@infradead.org\u003e\n" }, { "commit": "3e0d98b9f1eb757fc98efc84e74e54a08308aa73", "tree": "7cf1c75994f734ede7ec89373de640c4a58b237a", "parents": [ "5966514db662fb24c9bb43226a80106bcffd51f8" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Sun Jan 08 01:01:49 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:13:42 2006 -0800" }, "message": "[PATCH] cpuset: memory pressure meter\n\nProvide a simple per-cpuset metric of memory pressure, tracking the -rate-\nthat the tasks in a cpuset call try_to_free_pages(), the synchronous\n(direct) memory reclaim code.\n\nThis enables batch managers monitoring jobs running in dedicated cpusets to\nefficiently detect what level of memory pressure that job is causing.\n\nThis is useful both on tightly managed systems running a wide mix of\nsubmitted jobs, which may choose to terminate or reprioritize jobs that are\ntrying to use more memory than allowed on the nodes assigned them, and with\ntightly coupled, long running, massively parallel scientific computing jobs\nthat will dramatically fail to meet required performance goals if they\nstart to use more memory than allowed to them.\n\nThis patch just provides a very economical way for the batch manager to\nmonitor a cpuset for signs of memory pressure. It\u0027s up to the batch\nmanager or other user code to decide what to do about it and take action.\n\n\u003d\u003d\u003e Unless this feature is enabled by writing \"1\" to the special file\n /dev/cpuset/memory_pressure_enabled, the hook in the rebalance\n code of __alloc_pages() for this metric reduces to simply noticing\n that the cpuset_memory_pressure_enabled flag is zero. So only\n systems that enable this feature will compute the metric.\n\nWhy a per-cpuset, running average:\n\n Because this meter is per-cpuset, rather than per-task or mm, the\n system load imposed by a batch scheduler monitoring this metric is\n sharply reduced on large systems, because a scan of the tasklist can be\n avoided on each set of queries.\n\n Because this meter is a running average, instead of an accumulating\n counter, a batch scheduler can detect memory pressure with a single\n read, instead of having to read and accumulate results for a period of\n time.\n\n Because this meter is per-cpuset rather than per-task or mm, the\n batch scheduler can obtain the key information, memory pressure in a\n cpuset, with a single read, rather than having to query and accumulate\n results over all the (dynamically changing) set of tasks in the cpuset.\n\nA per-cpuset simple digital filter (requires a spinlock and 3 words of data\nper-cpuset) is kept, and updated by any task attached to that cpuset, if it\nenters the synchronous (direct) page reclaim code.\n\nA per-cpuset file provides an integer number representing the recent\n(half-life of 10 seconds) rate of direct page reclaims caused by the tasks\nin the cpuset, in units of reclaims attempted per second, times 1000.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "48db57f8ff10eb09ab887ccb6150b0da0c7be24e", "tree": "5c9fba3937bb802aa2944af189aae57b7bf7aa8b", "parents": [ "23316bc86fd31c5d644a71c398ec41d9fecacec4" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sun Jan 08 01:00:42 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:12:40 2006 -0800" }, "message": "[PATCH] mm: free_pages opt\n\nTry to streamline free_pages_bulk by ensuring callers don\u0027t pass in a\n\u0027count\u0027 that exceeds the list size.\n\nSome cleanups:\nRename __free_pages_bulk to __free_one_page.\nPut the page list manipulation from __free_pages_ok into free_one_page.\nMake __free_pages_ok static.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "23316bc86fd31c5d644a71c398ec41d9fecacec4", "tree": "9efc5bbd9dd7c35b6b5fea8ce8215477c2ff43dd", "parents": [ "8ad4b1fb8205340dba16b63467bb23efc27264d6" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sun Jan 08 01:00:41 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:12:40 2006 -0800" }, "message": "[PATCH] mm: cleanup zone_pcp\n\nUse zone_pcp everywhere even though NUMA code \"knows\" the internal details\nof the zone. Stop other people trying to copy, and it looks nicer.\n\nAlso, only print the pagesets of online cpus in zoneinfo.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: \"Seth, Rohit\" \u003crohit.seth@intel.com\u003e\nCc: Christoph Lameter \u003cchristoph@lameter.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "8ad4b1fb8205340dba16b63467bb23efc27264d6", "tree": "9f5c237ead93976e5454c5da5d3bba350a2419c5", "parents": [ "9d0243bca345d5ce25d3f4b74b7facb3a6df1232" ], "author": { "name": "Rohit Seth", "email": "rohit.seth@intel.com", "time": "Sun Jan 08 01:00:40 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:12:40 2006 -0800" }, "message": "[PATCH] Make high and batch sizes of per_cpu_pagelists configurable\n\nAs recently there has been lot of traffic on the right values for batch and\nhigh water marks for per_cpu_pagelists. This patch makes these two\nvariables configurable through /proc interface.\n\nA new tunable /proc/sys/vm/percpu_pagelist_fraction is added. This entry\ncontrols the fraction of pages at most in each zone that are allocated for\neach per cpu page list. The min value for this is 8. It means that we\ndon\u0027t allow more than 1/8th of pages in each zone to be allocated in any\nsingle per_cpu_pagelist.\n\nThe batch value of each per cpu pagelist is also updated as a result. It\nis set to pcp-\u003ehigh/4. The upper limit of batch is (PAGE_SHIFT * 8)\n\nSigned-off-by: Rohit Seth \u003crohit.seth@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "bec6b0c89b234090681a4516e20ac5debe3e7c59", "tree": "168a4c123e38b08d12b6787c18c4aa032520a48b", "parents": [ "b28a02de8c70d41d6b6ba8911e83ed3ccf2e13f8" ], "author": { "name": "Christoph Lameter", "email": "clameter@engr.sgi.com", "time": "Sun Jan 08 01:00:38 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:12:40 2006 -0800" }, "message": "[PATCH] slab: remove nested #ifdef CONFIG_NUMA\n\nFor some reason there is an #ifdef CONFIG_NUMA within another #ifdef\nCONFIG_NUMA in the page allocator. Remove innermost #ifdef CONFIG_NUMA\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "84c2008af01132c4ca257ed9b595693c611df15d", "tree": "a93bb1828e5b56ba041f8227ded78c9f04960a76", "parents": [ "9f5336e21893fafd232a9a02cfa7588ad153889a" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Sun Jan 08 01:00:28 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Jan 08 20:12:38 2006 -0800" }, "message": "[PATCH] revert \"mm: page_state fixes\"\n\nHugh says:\n\npage_alloc_cpu_notify() specifically contains code to\n\n \t\t/* Add dead cpu\u0027s page_states to our own. */\n\nwhich handles this more efficiently.\n\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a74609fafa2e5cc31d558012abaaa55ec9ad9da4", "tree": "0be653692864d99da345b575dfe2083994ee1d21", "parents": [ "d3cb487149bd706aa6aeb02042332a450978dc1c" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Fri Jan 06 00:11:20 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:29 2006 -0800" }, "message": "[PATCH] mm: page_state opt\n\nOptimise page_state manipulations by introducing interrupt unsafe accessors\nto page_state fields. Callers must provide their own locking (either\ndisable interrupts or not update from interrupt context).\n\nSwitch over the hot callsites that can easily be moved under interrupts off\nsections.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "070f80326a215d8e6c4fd6f175e28eb446c492bc", "tree": "e759fa446e9ad101bc2c7f77979fc5a5514aff70", "parents": [ "02a68a5ebc7dd823da7496116f42290103e1e4a9" ], "author": { "name": "Christoph Lameter", "email": "clameter@engr.sgi.com", "time": "Fri Jan 06 00:11:19 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:28 2006 -0800" }, "message": "[PATCH] build_zonelists_node(): rename args\n\nGive j and r meaningful names.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "02a68a5ebc7dd823da7496116f42290103e1e4a9", "tree": "7b79d20246b5c9b769e4f6172fe97e6f91fb921b", "parents": [ "4be38e351c5f455f6f490f5aff29053e33ab4f99" ], "author": { "name": "Christoph Lameter", "email": "clameter@engr.sgi.com", "time": "Fri Jan 06 00:11:18 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:28 2006 -0800" }, "message": "[PATCH] Fix zone policy determination\n\nThe use k in the inner loop means that the highest zone nr is always used\nif any zone of a node is populated. This means that the policy zone is not\ncorrectly determined on arches that do no use HIGHMEM like ia64.\n\nChange the loop to decrement k which also simplifies the BUG_ON.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4be38e351c5f455f6f490f5aff29053e33ab4f99", "tree": "fd7ba3678cdb5750894f58034f47076dd38c64ae", "parents": [ "1a93205bdffd9d7278d4a66081cdb48452522a58" ], "author": { "name": "Christoph Lameter", "email": "clameter@engr.sgi.com", "time": "Fri Jan 06 00:11:17 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:28 2006 -0800" }, "message": "[PATCH] mm: move determination of policy_zone into page allocator\n\nCurrently the function to build a zonelist for a BIND policy has the side\neffect to set the policy_zone. This seems to be a bit strange. policy\nzone seems to not be initialized elsewhere and therefore 0. Do we police\nZONE_DMA if no bind policy has been used yet?\n\nThis patch moves the determination of the zone to apply policies to into\nthe page allocator. We determine the zone while building the zonelist for\nnodes.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1a93205bdffd9d7278d4a66081cdb48452522a58", "tree": "7f8500fe725e5e8095a8fc77539d351a0e8a4643", "parents": [ "f3fe65122da05e1cd4c9140340d96ea2f95d0c49" ], "author": { "name": "Christoph Lameter", "email": "clameter@engr.sgi.com", "time": "Fri Jan 06 00:11:16 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:28 2006 -0800" }, "message": "[PATCH] mm: simplify build_zonelists_node by removing the case statement.\n\nSimplify build_zonelists_node by removing the case statement.\n\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f3fe65122da05e1cd4c9140340d96ea2f95d0c49", "tree": "65f2bcdb0a9665123b5083d3aea7dae483593cbc", "parents": [ "80bfed904c690642db9d4178950735299160950b" ], "author": { "name": "Con Kolivas", "email": "kernel@kolivas.org", "time": "Fri Jan 06 00:11:15 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:28 2006 -0800" }, "message": "[PATCH] mm: add populated_zone() helper\n\nThere are numerous places we check whether a zone is populated or not.\n\nProvide a helper function to check for populated zones and convert all\nchecks for zone-\u003epresent_pages.\n\nSigned-off-by: Con Kolivas \u003ckernel@kolivas.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "224abf92b2f439a9030f21d2926ec8047d1ffcdb", "tree": "e45074383aea04ef8b3b8d2cc04a3b34959f9e65", "parents": [ "9328b8faae922e52073785ed6c1eaa8565648a0e" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Fri Jan 06 00:11:11 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:26 2006 -0800" }, "message": "[PATCH] mm: bad_page optimisation\n\nCut down size slightly by not passing bad_page the function name (it should be\nable to be determined by dump_stack()). And cut down the number of printks in\nbad_page.\n\nAlso, cut down some branching in the destroy_compound_page path.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9328b8faae922e52073785ed6c1eaa8565648a0e", "tree": "065034bc534a4997197d26acf1774725159e4e65", "parents": [ "7756b9e4e321c3c83c7aa5b9532d3e7fd7ddeb4a" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Fri Jan 06 00:11:10 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:26 2006 -0800" }, "message": "[PATCH] mm: dma32 zone statistics\n\nAdd dma32 to zone statistics. Also attempt to arrange struct page_state a\nbit better (visually).\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a226f6c899799fe2c4919daa0767ac579c88f7bd", "tree": "82863c401f344cae8ab518b174085a7071a0a325", "parents": [ "008857c1a49ccffc31a54c3ea7e182833bd61304" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Fri Jan 06 00:11:08 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:26 2006 -0800" }, "message": "[PATCH] FRV: Clean up bootmem allocator\u0027s page freeing algorithm\n\nThe attached patch cleans up the way the bootmem allocator frees pages.\n\nA new function, __free_pages_bootmem(), is provided in mm/page_alloc.c that is\ncalled from mm/bootmem.c to turn pages over to the main allocator. All the\nbits of code to initialise pages (clearing PG_reserved and setting the page\ncount) are moved to here. The checks on page validity are removed, on the\nassumption that the struct page arrays will have been prepared correctly.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "085cc7d5de3cc662da7ea78296464a0d52f3f01f", "tree": "0fc8bc9ef25929b1bfc2bfb444eb62e6bc5468ff", "parents": [ "a86b1f53166a260ced8f3c8c526945bf496f2e78" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Fri Jan 06 00:11:01 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:25 2006 -0800" }, "message": "[PATCH] mm: page_alloc cleanups\n\nSmall cleanups that does not change generated code with the gcc\u0027s I\u0027ve tested\nwith.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a86b1f53166a260ced8f3c8c526945bf496f2e78", "tree": "5513bccce91fed08d4769fd18e0f527a84aea508", "parents": [ "2d92c5c9150a2a9ca3dc25da58d5042e17a96b6a" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Fri Jan 06 00:11:00 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:25 2006 -0800" }, "message": "[PATCH] mm: page_state fixes\n\nread_page_state and __get_page_state only traverse online CPUs, which will\ncause results to fluctuate when CPUs are plugged in or out.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2d92c5c9150a2a9ca3dc25da58d5042e17a96b6a", "tree": "7a559b29019f2391095f958d9546a4453839ec43", "parents": [ "13e7444b0ec59f96d81a4e8c379d5f38fc5f2cc1" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Fri Jan 06 00:10:59 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:25 2006 -0800" }, "message": "[PATCH] mm: remove pcp low\n\nstruct per_cpu_pages.low is useless. Remove it.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "13e7444b0ec59f96d81a4e8c379d5f38fc5f2cc1", "tree": "95420c03993981fd778047563c5af3f7dbdba74f", "parents": [ "92be2e33b155ee76399f51f41fb061f850d02f08" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Fri Jan 06 00:10:58 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:25 2006 -0800" }, "message": "[PATCH] mm: remove bad_range\n\nbad_range is supposed to be a temporary check. It would be a pity to throw it\nout. Make it depend on CONFIG_DEBUG_VM instead.\n\nCONFIG_HOLES_IN_ZONE systems were relying on this to check pfn_valid in the\npage allocator. Add that to page_is_buddy instead.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "92be2e33b155ee76399f51f41fb061f850d02f08", "tree": "13397157257259eff83729e0286c9a94cfb5a966", "parents": [ "77a8a78834561398fb4cb1480afa7b0e80b1dd53" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Fri Jan 06 00:10:57 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:25 2006 -0800" }, "message": "[PATCH] mm: microopt conditions\n\nMicro optimise some conditionals where we don\u0027t need lazy evaluation.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "77a8a78834561398fb4cb1480afa7b0e80b1dd53", "tree": "c58179bfb6c68fb6cad547852345150be039591f", "parents": [ "c54ad30c784b84d0275152d0ca80985b21471811" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Fri Jan 06 00:10:57 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:25 2006 -0800" }, "message": "[PATCH] mm: set_page_refs opt\n\nInline set_page_refs.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c54ad30c784b84d0275152d0ca80985b21471811", "tree": "7a40d6ddbe67360a1d9c577e3a2987d140056303", "parents": [ "c484d41042e6ccb88089ca41e3b3eed1bafdae21" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Fri Jan 06 00:10:56 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:25 2006 -0800" }, "message": "[PATCH] mm: pagealloc opt\n\nSlightly optimise some page allocation and freeing functions by taking\nadvantage of knowing whether or not interrupts are disabled.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a94b3ab7eab4edcc9b2cb474b188f774c331adf7", "tree": "96636969fa4a9e0b79c98f81cbcd726c5d3834a5", "parents": [ "d5afa6dcf74c0efb60ce07c63d0a727be93c67c5" ], "author": { "name": "Mike Kravetz", "email": "kravetz@us.ibm.com", "time": "Fri Jan 06 00:10:51 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:24 2006 -0800" }, "message": "[PATCH] mm: remove arch independent NODES_SPAN_OTHER_NODES\n\nThe NODES_SPAN_OTHER_NODES config option was created so that DISCONTIGMEM\ncould handle pSeries numa layouts. However, support for DISCONTIGMEM has\nbeen replaced by SPARSEMEM on powerpc. As a result, this config option and\nsupporting code is no longer needed.\n\nI have already sent a patch to Paul that removes the option from powerpc\nspecific code. This removes the arch independent piece. Doesn\u0027t really\nmatter which is applied first.\n\nSigned-off-by: Mike Kravetz \u003ckravetz@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "47f3a867f6310d6abfa185ab12baaba7ed1d69af", "tree": "59e218a6d18c683bc3f3d86055d3df553a5acaed", "parents": [ "a576219aca70e6700705a9836e098dbecd25fb56" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Fri Jan 06 00:10:32 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Jan 06 08:33:21 2006 -0800" }, "message": "[PATCH] mm: fix __alloc_pages cpuset ALLOC_* flags\n\nTwo changes to the setting of the ALLOC_CPUSET flag in\nmm/page_alloc.c:__alloc_pages()\n\n- A bug fix - the \"ignoring mins\" case should not be honoring ALLOC_CPUSET.\n This case of all cases, since it is handling a request that will free up\n more memory than is asked for (exiting tasks, e.g.) should be allowed to\n escape cpuset constraints when memory is tight.\n\n- A logic change to make it simpler. Honor cpusets even on GFP_ATOMIC\n (!wait) requests. With this, cpuset confinement applies to all requests\n except ALLOC_NO_WATERMARKS, so that in a subsequent cleanup patch, I can\n remove the ALLOC_CPUSET flag entirely. Since I don\u0027t know any real reason\n this logic has to be either way, I am choosing the path of the simplest\n code.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "78d9955bb06493e7bd78e43dfdc17fb5f1dc59b6", "tree": "67254d5c6df42764f5666cd17a6c9b564353ed0a", "parents": [ "538bacf8a4802d209f955726b66891b8a921dabf" ], "author": { "name": "Al Viro", "email": "viro@ftp.linux.org.uk", "time": "Thu Dec 15 09:18:25 2005 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Dec 15 10:04:30 2005 -0800" }, "message": "[PATCH] missing prototype (mm/page_alloc.c)\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "0ceaacc9785fedc500e19b024d606a82a23f5372", "tree": "ad178c7daa6ec7eaaae4e57d5ac8e20a8e806282", "parents": [ "9a40525788a1b692ee0fc780a8cdb2ac808de1b0" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sun Dec 04 13:55:25 2005 +1100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Dec 03 20:46:40 2005 -0800" }, "message": "[PATCH] Fix up per-cpu page batch sizes\n\nThe code to clamp batch sizes to 2^n - 1 went missing and an extra\ncheck got added, which must have been a hunk of the \"higer order pcp\nbatch refills\" work sneaking in.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3148890bfa4f36c9949871264e06ef4d449eeff9", "tree": "f8d7b2498ec83883d1434abd9042ae8e6863bdb2", "parents": [ "aa877b3dc9f2a1fdffac4ea36bee97c21db11a69" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Mon Nov 28 13:44:03 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 28 14:42:24 2005 -0800" }, "message": "[PATCH] mm: __alloc_pages cleanup fix\n\nI believe this patch is required to fix breakage in the asynch reclaim\nwatermark logic introduced by this patch:\n\nhttp://www.kernel.org/git/?p\u003dlinux/kernel/git/torvalds/linux-2.6.git;a\u003dcommitdiff;h\u003d7fb1d9fca5c6e3b06773b69165a73f3fb786b8ee\n\nJust some background of the watermark logic in case it isn\u0027t clear...\nBasically what we have is this:\n\n --- pages_high\n |\n | (a)\n |\n --- pages_low\n |\n | (b)\n |\n --- pages_min\n |\n | (c)\n |\n --- 0\n\nNow when pages_low is reached, we want to kick asynch reclaim, which gives us\nan interval of \"b\" before we must start synch reclaim, and gives kswapd an\ninterval of \"a\" before it need go back to sleep.\n\nWhen pages_min is reached, normal allocators must enter synch reclaim, but\nPF_MEMALLOC, ALLOC_HARDER, and ALLOC_HIGH (ie. atomic allocations, recursive\nallocations, etc.) get access to varying amounts of the reserve \"c\".\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: \"Seth, Rohit\" \u003crohit.seth@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "689bcebfda16d7bace742740bfb3137fff30b529", "tree": "7a7c1f583ed2c4838244650d83b53557ec1a8efa", "parents": [ "f57e88a8d83de8d844b57e16b84d2f762fe9f092" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Mon Nov 21 21:32:20 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Nov 22 09:13:42 2005 -0800" }, "message": "[PATCH] unpaged: PG_reserved bad_page\n\nIt used to be the case that PG_reserved pages were silently never freed, but\nin 2.6.15-rc1 they may be freed with a \"Bad page state\" message. We should\nwork through such cases as they appear, fixing the code; but for now it\u0027s\nsafer to issue the message without freeing the page, leaving PG_reserved set.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "664beed0190fae687ac51295694004902ddeb18e", "tree": "89a7c8d9d541fb678c567834cb758fc88b375d47", "parents": [ "1cdca61bf8537043edde8ef784ce1a1351361dac" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Mon Nov 21 21:32:14 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Nov 22 09:13:42 2005 -0800" }, "message": "[PATCH] unpaged: unifdefed PageCompound\n\nIt looks like snd_xxx is not the only nopage to be using PageReserved as a way\nof holding a high-order page together: which no longer works, but is masked by\nour failure to free from VM_RESERVED areas. We cannot fix that bug without\nfirst substituting another way to hold the high-order page together, while\nfarming out the 0-order pages from within it.\n\nThat\u0027s just what PageCompound is designed for, but it\u0027s been kept under\nCONFIG_HUGETLB_PAGE. Remove the #ifdefs: which saves some space (out- of-line\nput_page), doesn\u0027t slow down what most needs to be fast (already using\nhugetlb), and unifies the way we handle high-order pages.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6b1de9161e973bac8c4675db608fe4f38d2689bd", "tree": "3ab6aaad7d22dcb7a00a339b8b49c2f5b2ecc12d", "parents": [ "bb833986674ce1fc1b237b3d81459511ad2df393" ], "author": { "name": "Jens Axboe", "email": "axboe@suse.de", "time": "Thu Nov 17 21:35:02 2005 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Nov 17 12:43:01 2005 -0800" }, "message": "[PATCH] VM: fix zone list restart in page allocatate\n\nWe must reassign z before looping through the zones kicking kswapd,\nsince it will be NULL if we hit an OOM condition and jump back to the\nbeginning again. \u0027z\u0027 is initially assigned before the restart: label. So\nmove the restart label up a little.\n\nSigned-off-by: Jens Axboe \u003caxboe@suse.de\u003e\n" }, { "commit": "4060994c3e337b40e0f6fa8ce2cc178e021baf3d", "tree": "980297c1747ca89354bc879cc5d17903eacb19e2", "parents": [ "0174f72f848dfe7dc7488799776303c81b181b16", "d3ee871e63d0a0c70413dc0aa5534b8d6cd6ec37" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 14 19:56:02 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 14 19:56:02 2005 -0800" }, "message": "Merge x86-64 update from Andi\n" }, { "commit": "07808b74e7dab1aa385e698795875337d72daf7d", "tree": "3b593c31e6e58364f4001105bfeebefa94708209", "parents": [ "1dff7f3db5f045ccbfeca5bb00b0958a78501557" ], "author": { "name": "Andi Kleen", "email": "ak@suse.de", "time": "Sat Nov 05 17:25:53 2005 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 14 19:55:14 2005 -0800" }, "message": "[PATCH] x86_64: Remove obsolete ARCH_HAS_ATOMIC_UNSIGNED and page_flags_t\n\nHas been introduced for x86-64 at some point to save memory\nin struct page, but has been obsolete for some time. Just\nremove it.\n\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b0d41693217b3bb5b837940dc7465e82a9d49476", "tree": "965dbdfea6644d57fd107619b2ea9e0c9ec6bdc1", "parents": [ "fed644132f8ec4bf05b63f79c507c0acaa692c37" ], "author": { "name": "Andi Kleen", "email": "ak@suse.de", "time": "Sat Nov 05 17:25:53 2005 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 14 19:55:13 2005 -0800" }, "message": "[PATCH] x86_64: When cpu_up fails clean up page allocator properly\n\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "a2f1b424900715ed9d1699c3bb88a434a2b42bc0", "tree": "8ef440f840656365166ff2d71aa445c224c53546", "parents": [ "56720367cd89ef5265f39da2d674c5b92cd4cd87" ], "author": { "name": "Andi Kleen", "email": "ak@suse.de", "time": "Sat Nov 05 17:25:53 2005 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 14 19:55:13 2005 -0800" }, "message": "[PATCH] x86_64: Add 4GB DMA32 zone\n\nAdd a new 4GB GFP_DMA32 zone between the GFP_DMA and GFP_NORMAL zones.\n\nAs a bit of historical background: when the x86-64 port\nwas originally designed we had some discussion if we should\nuse a 16MB DMA zone like i386 or a 4GB DMA zone like IA64 or\nboth. Both was ruled out at this point because it was in early\n2.4 when VM is still quite shakey and had bad troubles even\ndealing with one DMA zone. We settled on the 16MB DMA zone mainly\nbecause we worried about older soundcards and the floppy.\n\nBut this has always caused problems since then because\ndevice drivers had trouble getting enough DMA able memory. These days\nthe VM works much better and the wide use of NUMA has proven\nit can deal with many zones successfully.\n\nSo this patch adds both zones.\n\nThis helps drivers who need a lot of memory below 4GB because\ntheir hardware is not accessing more (graphic drivers - proprietary\nand free ones, video frame buffer drivers, sound drivers etc.).\nPreviously they could only use IOMMU+16MB GFP_DMA, which\nwas not enough memory.\n\nAnother common problem is that hardware who has full memory\naddressing for \u003e4GB misses it for some control structures in memory\n(like transmit rings or other metadata). They tended to allocate memory\nin the 16MB GFP_DMA or the IOMMU/swiotlb then using pci_alloc_consistent,\nbut that can tie up a lot of precious 16MB GFPDMA/IOMMU/swiotlb memory\n(even on AMD systems the IOMMU tends to be quite small) especially if you have\nmany devices. With the new zone pci_alloc_consistent can just put\nthis stuff into memory below 4GB which works better.\n\nOne argument was still if the zone should be 4GB or 2GB. The main\nmotivation for 2GB would be an unnamed not so unpopular hardware\nraid controller (mostly found in older machines from a particular four letter\ncompany) who has a strange 2GB restriction in firmware. But\nthat one works ok with swiotlb/IOMMU anyways, so it doesn\u0027t really\nneed GFP_DMA32. I chose 4GB to be compatible with IA64 and because\nit seems to be the most common restriction.\n\nThe new zone is so far added only for x86-64.\n\nFor other architectures who don\u0027t set up this\nnew zone nothing changes. Architectures can set a compatibility\ndefine in Kconfig CONFIG_DMA_IS_DMA32 that will define GFP_DMA32\nas GFP_DMA. Otherwise it\u0027s a nop because on 32bit architectures\nit\u0027s normally not needed because GFP_NORMAL (\u003d0) is DMA able\nenough.\n\nOne problem is still that GFP_DMA means different things on different\narchitectures. e.g. some drivers used to have #ifdef ia64 use GFP_DMA\n(trusting it to be 4GB) #elif __x86_64__ (use other hacks like\nthe swiotlb because 16MB is not enough) ... . This was quite\nugly and is now obsolete.\n\nThese should be now converted to use GFP_DMA32 unconditionally. I haven\u0027t done\nthis yet. Or best only use pci_alloc_consistent/dma_alloc_coherent\nwhich will use GFP_DMA32 transparently.\n\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "669ed17521b9b78cdbeac8a53c30599aca9527ce", "tree": "9a4c037120b7a85943c37115be9f4a6eacb28874", "parents": [ "2d6c666e8704cf06267f29a4fa3d2cf823469c38" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sun Nov 13 16:06:45 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:12 2005 -0800" }, "message": "[PATCH] mm: highmem watermarks\n\nThe pages_high - pages_low and pages_low - pages_min deltas are the asynch\nreclaim watermarks. As such, the should be in the same ratios as any other\nzone for highmem zones. It is the pages_min - 0 delta which is the\nPF_MEMALLOC reserve, and this is the region that isn\u0027t very useful for\nhighmem.\n\nThis patch ensures highmem systems have similar characteristics as non highmem\nones with the same amount of memory, and also that highmem zones get similar\nreclaim pressures to other zones.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "7fb1d9fca5c6e3b06773b69165a73f3fb786b8ee", "tree": "21f8b7deeb8a7e1197edfccc610365a12d60322e", "parents": [ "51c6f666fceb3184eeff045dad4432b602cd648e" ], "author": { "name": "Rohit Seth", "email": "rohit.seth@intel.com", "time": "Sun Nov 13 16:06:43 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:12 2005 -0800" }, "message": "[PATCH] mm: __alloc_pages cleanup\n\nClean up of __alloc_pages.\n\nRestoration of previous behaviour, plus further cleanups by introducing an\n\u0027alloc_flags\u0027, removing the last of should_reclaim_zone.\n\nSigned-off-by: Rohit Seth \u003crohit.seth@intel.com\u003e\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "885036d32f5d3c427c3e2b385b5a5503805e3e52", "tree": "7f442b309a749d8cbe0f2ac5c38531eeff8bfcd8", "parents": [ "d4d28dd4b12649d02a89d19e6bd12ab92a6fcd4e" ], "author": { "name": "Kirill Korotaev", "email": "dev@sw.ru", "time": "Sun Nov 13 16:06:41 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sun Nov 13 18:14:12 2005 -0800" }, "message": "[PATCH] mm: __GFP_NOFAIL fix\n\nIn __alloc_pages():\n\nif ((p-\u003eflags \u0026 (PF_MEMALLOC | PF_MEMDIE)) \u0026\u0026 !in_interrupt()) {\n /* go through the zonelist yet again, ignoring mins */\n for (i \u003d 0; zones[i] !\u003d NULL; i++) {\n struct zone *z \u003d zones[i];\n\n page \u003d buffered_rmqueue(z, order, gfp_mask);\n if (page) {\n zone_statistics(zonelist, z);\n goto got_pg;\n }\n }\n goto nopage; \u003c\u003c\u003c\u003c HERE!!! FAIL...\n}\n\nkswapd (which has PF_MEMALLOC flag) can fail to allocate memory even when\nit allocates it with __GFP_NOFAIL flag.\n\nSigned-Off-By: Pavel Emelianov \u003cxemul@sw.ru\u003e\nSigned-Off-By: Denis Lunev \u003cden@sw.ru\u003e\nSigned-Off-By: Kirill Korotaev \u003cdev@sw.ru\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6b482c6779daaa893b277fc9b70767a7c2e7c5eb", "tree": "e5e5be3db037e724b276a0324b44810207dc5341", "parents": [ "393b07258766130146b962bc294d66615a47468a" ], "author": { "name": "Dave Jones", "email": "davej@redhat.com", "time": "Thu Nov 10 15:45:56 2005 -0500" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Nov 10 13:25:53 2005 -0800" }, "message": "[PATCH] Don\u0027t print per-cpu vm stats for offline cpus.\n\nI just hit a page allocation error on a kernel configured to support\n64 CPUs. It spewed 60 completely useless unnecessary lines of info.\n\nSigned-off-by: Dave Jones \u003cdavej@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "f8b8db77b0cc36670ef4ed6bc31e64537ffa197e", "tree": "a55807b704a7120722d3903ec92c3d393b33f87d", "parents": [ "e6a7e0e7cee3d4bc9a9d2f82ef2f9de4687a5656" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Mon Nov 07 01:01:39 2005 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Nov 07 07:54:07 2005 -0800" }, "message": "[PATCH] unexport nr_swap_pages\n\nI didn\u0027t find any possible modular usage in the kernel.\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "2f96996de0eda378df2a5f857ee1ef615ae10a4f", "tree": "ee3075c48a99369c9748ee17d3bb8396e9f38372", "parents": [ "5fcbb23050936d69de8087d4b311eaf55cb42740" ], "author": { "name": "John Hawkes", "email": "hawkes@sgi.com", "time": "Sat Oct 29 18:17:01 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:45 2005 -0700" }, "message": "[PATCH] mm: wider use of for_each_*cpu()\n\nIn \u0027mm\u0027 change the explicit use of a for-loop using NR_CPUS into the\ngeneral for_each_cpu() constructs. This widens the scope of potential\nfuture optimizations of the general constructs, as well as takes advantage\nof the existing optimizations of first_cpu() and next_cpu(), which is\nadvantageous when the true CPU count is much smaller than NR_CPUS.\n\nSigned-off-by: John Hawkes \u003chawkes@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "3947be1969a9ce455ec30f60ef51efb10e4323d1", "tree": "0b4b3b4c268beb7aa88cb685cce48b6bb5053c47", "parents": [ "bdc8cb984576ab5b550c8b24c6fa111a873503e3" ], "author": { "name": "Dave Hansen", "email": "haveblue@us.ibm.com", "time": "Sat Oct 29 18:16:54 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:44 2005 -0700" }, "message": "[PATCH] memory hotplug: sysfs and add/remove functions\n\nThis adds generic memory add/remove and supporting functions for memory\nhotplug into a new file as well as a memory hotplug kernel config option.\n\nIndividual architecture patches will follow.\n\nFor now, disable memory hotplug when swsusp is enabled. There\u0027s a lot of\nchurn there right now. We\u0027ll fix it up properly once it calms down.\n\nSigned-off-by: Matt Tolentino \u003cmatthew.e.tolentino@intel.com\u003e\nSigned-off-by: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "bdc8cb984576ab5b550c8b24c6fa111a873503e3", "tree": "f94548988874caa10d770e6e65bc50c925abf825", "parents": [ "208d54e5513c0c02d85af0990901354c74364d5c" ], "author": { "name": "Dave Hansen", "email": "haveblue@us.ibm.com", "time": "Sat Oct 29 18:16:53 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:44 2005 -0700" }, "message": "[PATCH] memory hotplug locking: zone span seqlock\n\nSee the \"fixup bad_range()\" patch for more information, but this actually\ncreates a the lock to protect things making assumptions about a zone\u0027s size\nstaying constant at runtime.\n\nSigned-off-by: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "208d54e5513c0c02d85af0990901354c74364d5c", "tree": "83922f1d4a83f19bffcbff299044f421bd7e9c73", "parents": [ "c6a57e19e464db118dc4ab9cfe9e9748c6d630a0" ], "author": { "name": "Dave Hansen", "email": "haveblue@us.ibm.com", "time": "Sat Oct 29 18:16:52 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:44 2005 -0700" }, "message": "[PATCH] memory hotplug locking: node_size_lock\n\npgdat-\u003enode_size_lock is basically only neeeded in one place in the normal\ncode: show_mem(), which is the arch-specific sysrq-m printing function.\n\nStrictly speaking, the architectures not doing memory hotplug do no need this\nlocking in show_mem(). However, they are all included for completeness. This\nshould also make any future consolidation of all of the implementations a\nlittle more straightforward.\n\nThis lock is also held in the sparsemem code during a memory removal, as\nsections are invalidated. This is the place there pfn_valid() is made false\nfor a memory area that\u0027s being removed. The lock is only required when doing\npfn_valid() operations on memory which the user does not already have a\nreference on the page, such as in show_mem().\n\nSigned-off-by: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c6a57e19e464db118dc4ab9cfe9e9748c6d630a0", "tree": "1be192e4c0635c9aa49c8c76d1606e606ecdc9a0", "parents": [ "4ca644d970bf2542623228a4624af356d20ca267" ], "author": { "name": "Dave Hansen", "email": "haveblue@us.ibm.com", "time": "Sat Oct 29 18:16:52 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:44 2005 -0700" }, "message": "[PATCH] memory hotplug prep: fixup bad_range()\n\nWhen doing memory hotplug operations, the size of existing zones can obviously\nchange. This means that zone-\u003ezone_{start_pfn,spanned_pages} can change.\n\nThere are currently no locks that protect these structure members. However,\nthey are rarely accessed at runtime. Outside of swsusp, the only place that I\ncan find is bad_range().\n\nSo, split bad_range() up into two pieces: one that needs to be locked and\nanther that doesn\u0027t.\n\nSigned-off-by: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ed8ece2ec8d3c2031b1a1a0737568bb0d49454e0", "tree": "5fb5b994ad3fcdc4ab2bb2c906d88c02a8395807", "parents": [ "2774812f417db562f0d659d2c1b5755ba35d2770" ], "author": { "name": "Dave Hansen", "email": "haveblue@us.ibm.com", "time": "Sat Oct 29 18:16:50 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:44 2005 -0700" }, "message": "[PATCH] memory hotplug prep: break out zone initialization\n\nIf a zone is empty at boot-time and then hot-added to later, it needs to run\nthe same init code that would have been run on it at boot.\n\nThis patch breaks out zone table and per-cpu-pages functions for use by the\nhotplug code. You can almost see all of the free_area_init_core() function on\none page now. :)\n\nSigned-off-by: Dave Hansen \u003chaveblue@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "4c21e2f2441dc5fbb957b030333f5a3f2d02dea7", "tree": "1f76d33bb1d76221c6424bc5fed080a4f91349a6", "parents": [ "b38c6845b695141259019e2b7c0fe6c32a6e720d" ], "author": { "name": "Hugh Dickins", "email": "hugh@veritas.com", "time": "Sat Oct 29 18:16:40 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:42 2005 -0700" }, "message": "[PATCH] mm: split page table lock\n\nChristoph Lameter demonstrated very poor scalability on the SGI 512-way, with\na many-threaded application which concurrently initializes different parts of\na large anonymous area.\n\nThis patch corrects that, by using a separate spinlock per page table page, to\nguard the page table entries in that page, instead of using the mm\u0027s single\npage_table_lock. (But even then, page_table_lock is still used to guard page\ntable allocation, and anon_vma allocation.)\n\nIn this implementation, the spinlock is tucked inside the struct page of the\npage table page: with a BUILD_BUG_ON in case it overflows - which it would in\nthe case of 32-bit PA-RISC with spinlock debugging enabled.\n\nSplitting the lock is not quite for free: another cacheline access. Ideally,\nI suppose we would use split ptlock only for multi-threaded processes on\nmulti-cpu machines; but deciding that dynamically would have its own costs.\nSo for now enable it by config, at some number of cpus - since the Kconfig\nlanguage doesn\u0027t support inequalities, let preprocessor compare that with\nNR_CPUS. But I don\u0027t think it\u0027s worth being user-configurable: for good\ntesting of both split and unsplit configs, split now at 4 cpus, and perhaps\nchange that to 8 later.\n\nThere is a benefit even for singly threaded processes: kswapd can be attacking\none part of the mm while another part is busy faulting.\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b5810039a54e5babf428e9a1e89fc1940fabff11", "tree": "835836cb527ec9bd525f93eb7e016f3dfb8c8ae2", "parents": [ "f9c98d0287de42221c624482fd4f8d485c98ab22" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sat Oct 29 18:16:12 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:39 2005 -0700" }, "message": "[PATCH] core remove PageReserved\n\nRemove PageReserved() calls from core code by tightening VM_RESERVED\nhandling in mm/ to cover PageReserved functionality.\n\nPageReserved special casing is removed from get_page and put_page.\n\nAll setting and clearing of PageReserved is retained, and it is now flagged\nin the page_alloc checks to help ensure we don\u0027t introduce any refcount\nbased freeing of Reserved pages.\n\nMAP_PRIVATE, PROT_WRITE of VM_RESERVED regions is tentatively being\ndeprecated. We never completely handled it correctly anyway, and is be\nreintroduced in future if required (Hugh has a proof of concept).\n\nOnce PageReserved() calls are removed from kernel/power/swsusp.c, and all\narch/ and driver code, the Set and Clear calls, and the PG_reserved bit can\nbe trivially removed.\n\nLast real user of PageReserved is swsusp, which uses PageReserved to\ndetermine whether a struct page points to valid memory or not. This still\nneeds to be addressed (a generic page_is_ram() should work).\n\nA last caveat: the ZERO_PAGE is now refcounted and managed with rmap (and\nthus mapcounted and count towards shared rss). These writes to the struct\npage could cause excessive cacheline bouncing on big systems. There are a\nnumber of ways this could be addressed if it is an issue.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\n\nRefcount bug fix for filemap_xip.c\n\nSigned-off-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e46a5e28c201f703c18b47b108bfddec44f897c4", "tree": "b55f5c376533f2ecfedc8fed0d12a590bfb1387e", "parents": [ "ba56e91c940146e99ac694c4c7cd7f2b4aaa565d" ], "author": { "name": "Seth, Rohit", "email": "rohit.seth@intel.com", "time": "Sat Oct 29 18:15:48 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:35 2005 -0700" }, "message": "[PATCH] mm: set per-cpu-pages lower threshold to zero\n\nSet the low water mark for hot pages in pcp to zero.\n\n(akpm: for the life of me I cannot remember why we created pcp-\u003elow. Neither\ncan Martin and the changelog is silent. Maybe it was just a brainfart, but I\nhave this feeling that there was a reason. If not, we should remove the\nfields completely. We\u0027ll see.)\n\nSigned-off-by: Rohit Seth \u003crohit.seth@intel.com\u003e\nCc: \u003clinux-mm@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ba56e91c940146e99ac694c4c7cd7f2b4aaa565d", "tree": "5254f1ce8e2f39ccb58a74d0ff0120817b3b5c05", "parents": [ "fcdae29aa7a5c79f245110f6680afdc1858d3626" ], "author": { "name": "Seth, Rohit", "email": "rohit.seth@intel.com", "time": "Sat Oct 29 18:15:47 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 29 21:40:35 2005 -0700" }, "message": "[PATCH] mm: page_alloc: increase size of per-cpu-pages\n\nIncrease the page allocator\u0027s per-cpu magazines from 1/4MB to 1/2MB.\n\nOver 100+ runs for a workload, the difference in mean is about 2%. The best\nresults for both are almost same. Though the max variation in results with\n1/2MB is only 2.2%, whereas with 1/4MB it is 12%.\n\nSigned-off-by: Rohit Seth \u003crohit.seth@intel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "260b23674fdb570f3235ce55892246bef1c24c2a", "tree": "471e7b546cbf1f7ee4a165e5bd9a2de0770e53be", "parents": [ "c4cdd038318863e912e9b992489f61497f98b442" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Oct 21 03:22:44 2005 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Oct 28 08:16:51 2005 -0700" }, "message": "[PATCH] gfp_t: the rest\n\nzone handling, mapping-\u003eflags handling\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "af4ca457eaf2d6682059c18463eb106e2ce58198", "tree": "399ca5ab3b15d723a6aefd04c764a2a06089ed06", "parents": [ "434f1d10c1adb6c2e333d501ce1e42be610e0723" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Oct 21 02:55:38 2005 -0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Oct 28 08:16:46 2005 -0700" }, "message": "[PATCH] gfp_t: infrastructure\n\nBeginning of gfp_t annotations:\n\n - -Wbitwise added to CHECKFLAGS\n - old __bitwise renamed to __bitwise__\n - __bitwise defined to either __bitwise__ or nothing, depending on\n __CHECK_ENDIAN__ being defined\n - gfp_t switched from __nocast to __bitwise__\n - force cast to gfp_t added to __GFP_... constants\n - new helper - gfp_zone(); extracts zone bits out of gfp_t value and casts\n the result to int\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1c6fe9465941df04a1ad8f009bd6d95b20072a58", "tree": "8a603129e3f5df909476d41c09c9d87939c2839f", "parents": [ "8712e553562bbbed9b3a99370f08e9bc25908a76" ], "author": { "name": "Magnus Damm", "email": "magnus@valinux.co.jp", "time": "Wed Oct 26 01:58:59 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Oct 26 10:39:43 2005 -0700" }, "message": "[PATCH] NUMA: broken per cpu pageset counters\n\nThe NUMA counters in struct per_cpu_pageset (linux/mmzone.h) are never\ncleared today. This works ok for CPU 0 on NUMA machines because\nboot_pageset[] is already zero, but for other CPU:s this results in\nuninitialized counters.\n\nSigned-off-by: Magnus Damm \u003cmagnus@valinux.co.jp\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "dd0fc66fb33cd610bc1a5db8a5e232d34879b4d7", "tree": "51f96a9db96293b352e358f66032e1f4ff79fafb", "parents": [ "3b0e77bd144203a507eb191f7117d2c5004ea1de" ], "author": { "name": "Al Viro", "email": "viro@ftp.linux.org.uk", "time": "Fri Oct 07 07:46:04 2005 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Oct 08 15:00:57 2005 -0700" }, "message": "[PATCH] gfp flags annotations - part 1\n\n - added typedef unsigned int __nocast gfp_t;\n\n - replaced __nocast uses for gfp flags with gfp_t - it gives exactly\n the same warnings as far as sparse is concerned, doesn\u0027t change\n generated code (from gcc point of view we replaced unsigned int with\n typedef) and documents what\u0027s going on far better.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9f1583339a6f52c0c26441d39a0deff8246800f7", "tree": "99efa7690d22a45bf87ec80beb5e2a2d43f6b26d", "parents": [ "fb911ee849756fc6c609dddded92d9207ff3fb29" ], "author": { "name": "Randy Dunlap", "email": "rdunlap@xenotime.net", "time": "Tue Sep 13 01:25:16 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Sep 13 08:22:29 2005 -0700" }, "message": "[PATCH] use add_taint() for setting tainted bit flags\n\nUse the add_taint() interface for setting tainted bit flags instead of\ndoing it manually.\n\nSigned-off-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "207f36eec9e7b1077d7a0aaadb4800e2c9b4cfa4", "tree": "09fa4a6885ee6a1032a46b2409a13669a8d01459", "parents": [ "9dcbb32f1654e79c212c20d9cd9d48509ee1eaf7" ], "author": { "name": "Renaud Lienhart", "email": "renaud.lienhart@free.fr", "time": "Sat Sep 10 00:26:59 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Sep 10 10:06:31 2005 -0700" }, "message": "[PATCH] remove invalid comment in mm/page_alloc.c\n\nfree_pages_bulk() doesn\u0027t free the entire list if count \u003d\u003d 0.\n\nSigned-off-by: Renaud Lienhart \u003crenaud.lienhart@free.fr\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "9bf2229f8817677127a60c177aefce1badd22d7b", "tree": "06e95863a26b197233081db1dafd869dfd231950", "parents": [ "f90b1d2f1aaaa40c6519a32e69615edc25bb97d5" ], "author": { "name": "Paul Jackson", "email": "pj@sgi.com", "time": "Tue Sep 06 15:18:12 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 16:57:40 2005 -0700" }, "message": "[PATCH] cpusets: formalize intermediate GFP_KERNEL containment\n\nThis patch makes use of the previously underutilized cpuset flag\n\u0027mem_exclusive\u0027 to provide what amounts to another layer of memory placement\nresolution. With this patch, there are now the following four layers of\nmemory placement available:\n\n 1) The whole system (interrupt and GFP_ATOMIC allocations can use this),\n 2) The nearest enclosing mem_exclusive cpuset (GFP_KERNEL allocations can use),\n 3) The current tasks cpuset (GFP_USER allocations constrained to here), and\n 4) Specific node placement, using mbind and set_mempolicy.\n\nThese nest - each layer is a subset (same or within) of the previous.\n\nLayer (2) above is new, with this patch. The call used to check whether a\nzone (its node, actually) is in a cpuset (in its mems_allowed, actually) is\nextended to take a gfp_mask argument, and its logic is extended, in the case\nthat __GFP_HARDWALL is not set in the flag bits, to look up the cpuset\nhierarchy for the nearest enclosing mem_exclusive cpuset, to determine if\nplacement is allowed. The definition of GFP_USER, which used to be identical\nto GFP_KERNEL, is changed to also set the __GFP_HARDWALL bit, in the previous\ncpuset_gfp_hardwall_flag patch.\n\nGFP_ATOMIC and GFP_KERNEL allocations will stay within the current tasks\ncpuset, so long as any node therein is not too tight on memory, but will\nescape to the larger layer, if need be.\n\nThe intended use is to allow something like a batch manager to handle several\njobs, each job in its own cpuset, but using common kernel memory for caches\nand such. Swapper and oom_kill activity is also constrained to Layer (2). A\ntask in or below one mem_exclusive cpuset should not cause swapping on nodes\nin another non-overlapping mem_exclusive cpuset, nor provoke oom_killing of a\ntask in another such cpuset. Heavy use of kernel memory for i/o caching and\nsuch by one job should not impact the memory available to jobs in other\nnon-overlapping mem_exclusive cpusets.\n\nThis patch enables providing hardwall, inescapable cpusets for memory\nallocations of each job, while sharing kernel memory allocations between\nseveral jobs, in an enclosing mem_exclusive cpuset.\n\nLike Dinakar\u0027s patch earlier to enable administering sched domains using the\ncpu_exclusive flag, this patch also provides a useful meaning to a cpuset flag\nthat had previously done nothing much useful other than restrict what cpuset\nconfigurations were allowed.\n\nSigned-off-by: Paul Jackson \u003cpj@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6c231b7bab0aa6860cd9da2de8a064eddc34c146", "tree": "2a6d9dea348651ec6000b96b99fbf5bd9ccdb228", "parents": [ "39ed3fdeec1290dd246dcf1da6b278566987a084" ], "author": { "name": "Ravikiran G Thirumalai", "email": "kiran@scalex86.org", "time": "Tue Sep 06 15:17:45 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 16:57:33 2005 -0700" }, "message": "[PATCH] Additions to .data.read_mostly section\n\nMark variables which are usually accessed for reads with __readmostly.\n\nSigned-off-by: Alok N Kataria \u003calokk@calsoftinc.com\u003e\nSigned-off-by: Shai Fultheim \u003cshai@scalex86.org\u003e\nSigned-off-by: Ravikiran Thirumalai \u003ckiran@scalex86.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c3d8c1414573be8cf7c8fdc1e076935697c7f6af", "tree": "bd2fc21473e03fbbf5c1182ee584b68ebfd8b1cf", "parents": [ "b3dbb4ecd46767b621df3dedd28788da93ee0cac" ], "author": { "name": "Christoph Lameter", "email": "christoph@scalex86.org", "time": "Tue Sep 06 15:16:33 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Sep 07 16:57:18 2005 -0700" }, "message": "[PATCH] More __read_mostly variables\n\nMove some more frequently read variables that showed up during some of our\nperformance tests as sometimes ending up in hot cachelines to the\nread_mostly section.\n\nFix: Move the __read_mostly from before hpet_usec_quotient to follow the\nvariable like the other uses of __read_mostly.\n\nSigned-off-by: Alok N Kataria \u003calokk@calsoftinc.com\u003e\nSigned-off-by: Christoph Lameter \u003cchristoph@scalex86.org\u003e\nSigned-off-by: Shai Fultheim \u003cshai@scalex86.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "c07e02db76940c75fc92f2f2c9adcdbb09ed70d0", "tree": "9d777784fd5e3658d8db5b01a965d4fc568ceb93", "parents": [ "e070ad49f31155d872d8e96cab2142840993e3c0" ], "author": { "name": "Martin Hicks", "email": "mort@sgi.com", "time": "Sat Sep 03 15:55:11 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:05:49 2005 -0700" }, "message": "[PATCH] VM: add page_state info to per-node meminfo\n\nAdd page_state info to the per-node meminfo file in sysfs. This is mostly\njust for informational purposes.\n\nThe lack of this information was brought up recently during a discussion\nregarding pagecache clearing, and I put this patch together to test out one\nof the suggestions.\n\nIt seems like interesting info to have, so I\u0027m submitting the patch.\n\nSigned-off-by: Martin Hicks \u003cmort@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "53e9a6159fdc6419874ce4d86d3577dbedc77b62", "tree": "7c7f15325569cf5e02dafc1974fb080154616058", "parents": [ "bce5f6ba340b09d8b29902add204bb95a6d3d88b" ], "author": { "name": "Martin Hicks", "email": "mort@bork.org", "time": "Sat Sep 03 15:54:51 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:05:44 2005 -0700" }, "message": "[PATCH] VM: zone reclaim atomic ops cleanup\n\nChristoph Lameter and Marcelo Tosatti asked to get rid of the\natomic_inc_and_test() to cleanup the atomic ops in the zone reclaim code.\n\nSigned-off-by: Martin Hicks \u003cmort@sgi.com\u003e\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "242e54686257493f0b10ac557e730419d9af7d24", "tree": "d68754b32c531141969a09ca0c5df246893c5b1e", "parents": [ "9a61c349b28ec5aef7e929236571fd770fdef0bb" ], "author": { "name": "Nick Piggin", "email": "nickpiggin@yahoo.com.au", "time": "Sat Sep 03 15:54:50 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@evo.osdl.org", "time": "Mon Sep 05 00:05:44 2005 -0700" }, "message": "[PATCH] mm: remove atomic\n\nThis bitop does not need to be atomic because it is performed when there will\nbe no references to the page (ie. the page is being freed).\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e310fd43256b3cf4d37f6447b8f7413ca744657a", "tree": "29537927762fd44459fa288b5241d4e79dbadedb", "parents": [ "5fa918b451f625870cd4275ca908b2392ee86a51" ], "author": { "name": "Martin J. Bligh", "email": "mbligh@mbligh.org", "time": "Fri Jul 29 22:59:18 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Jul 30 10:14:46 2005 -0700" }, "message": "[PATCH] Fix NUMA node sizing in nr_free_zone_pages\n\nWe are iterating over all nodes in nr_free_zone_pages(). Because the\nfallback zonelists contain all nodes in the system, and we walk all the\nzonelists, we\u0027re counting memory multiple times (once for each node). This\ncaused us to make a size estimate of 32GB for an 8GB AMD64 box, which makes\nall the dirty ratio calculations, etc incorrect.\n\nThere\u0027s still a further bug to fix from e820 holes causing overestimation\nas well, but this fix is separate, and good as is, and fixes one class of\nproblems. Problem found by Badari, and tested by Ram Pai - thanks!\n\nSigned-off-by: Martin J. Bligh \u003cmbligh@mbligh.org\u003e\nSigned-off-by: Matt Dobson \u003ccolpatch@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "12b1c5f382194d3f656e78fb5c9c8f2bfbe8ed8a", "tree": "052ec39f86482f4623531b247131aed93b6fb345", "parents": [ "165cd40235732644b1856a5ed5e158c9b93f6010" ], "author": { "name": "Andy Whitcroft", "email": "apw@shadowen.org", "time": "Wed Jul 27 11:44:02 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jul 27 16:25:54 2005 -0700" }, "message": "[PATCH] Remove bogus warning in page_alloc.c\n\nOriginally __free_pages_bulk used the relative page number within a zone to\ndefine its buddies. This meant that to maintain the \"maximally aligned\"\nrequirements (that an allocation of size N will be aligned at least to N\nphysically) zones had to also be aligned to 1\u003c\u003cMAX_ORDER pages. When\n__free_pages_bulk was updated to use the relative page frame numbers of the\nfree\u0027d pages to pair buddies this released the alignment constraint on the\n\u0027left\u0027 edge of the zone. This allows _either_ edge of the zone to contain\npartial MAX_ORDER sized buddies. These simply never will have matching\nbuddies and thus will never make it to the \u0027top\u0027 of the pyramid.\n\nThe patch below removes a now redundant check ensuring that the mem_map was\naligned to MAX_ORDER.\n\nSigned-off-by: Andy Whitcroft \u003capw@shadowen.org\u003e\nCc: Christoph Lameter \u003cchristoph@lameter.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" } ], "next": "37b173a4d03d1681e6c9529bc43d7a3308132db6" }