)]}'
{
  "log": [
    {
      "commit": "14bac5acfdb6a40be64acc042c6db73f1a68f6a4",
      "tree": "5148a0440674ef618a5af4e1b549794db9f783c1",
      "parents": [
        "538f8ea6c85232d00bfa5edd9ba85f16c01057c9"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Wed Aug 20 14:09:20 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Aug 20 15:40:32 2008 -0700"
      },
      "message": "mm: xip/ext2 fix block allocation race\n\nXIP can call into get_xip_mem concurrently with the same file,offset with\ncreate\u003d1.  This usually maps down to get_block, which expects the page\nlock to prevent such a situation.  This causes ext2 to explode for one\nreason or another.\n\nSerialise those calls for the moment.  For common usages today, I suspect\nget_xip_mem rarely is called to create new blocks.  In future as XIP\ntechnologies evolve we might need to look at which operations require\nscalability, and rework the locking to suit.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Jared Hulbert \u003cjaredeh@gmail.com\u003e\nAcked-by: Carsten Otte \u003ccotte@freenet.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "538f8ea6c85232d00bfa5edd9ba85f16c01057c9",
      "tree": "c1a4a49c0c7f16b4fe8ec560137084bf556efc50",
      "parents": [
        "479db0bf408e65baa14d2a9821abfcbc0804b847"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Wed Aug 20 14:09:20 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Aug 20 15:40:32 2008 -0700"
      },
      "message": "mm: xip fix fault vs sparse page invalidate race\n\nXIP has a race between sparse pages being inserted into page tables, and\nsparse pages being zapped when its time to put a non-sparse page in.\n\nWhat can happen is that a process can be left with a dangling sparse page\nin a MAP_SHARED mapping, while the rest of the world sees the non-sparse\nversion.  Ie.  data corruption.\n\nGuard these operations with a seqlock, making fault-in-sparse-pages the\nslowpath, and try-to-unmap-sparse-pages the fastpath.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Jared Hulbert \u003cjaredeh@gmail.com\u003e\nAcked-by: Carsten Otte \u003ccotte@freenet.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "479db0bf408e65baa14d2a9821abfcbc0804b847",
      "tree": "acdaaed567afefa36ac2fe27cfe22cfefeb50cd5",
      "parents": [
        "2d70b68d42b5196a48ccb639e3797f097ef5bea3"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Wed Aug 20 14:09:18 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Wed Aug 20 15:40:32 2008 -0700"
      },
      "message": "mm: dirty page tracking race fix\n\nThere is a race with dirty page accounting where a page may not properly\nbe accounted for.\n\nclear_page_dirty_for_io() calls page_mkclean; then TestClearPageDirty.\n\npage_mkclean walks the rmaps for that page, and for each one it cleans and\nwrite protects the pte if it was dirty.  It uses page_check_address to\nfind the pte.  That function has a shortcut to avoid the ptl if the pte is\nnot present.  Unfortunately, the pte can be switched to not-present then\nback to present by other code while holding the page table lock -- this\nshould not be a signal for page_mkclean to ignore that pte, because it may\nbe dirty.\n\nFor example, powerpc64\u0027s set_pte_at will clear a previously present pte\nbefore setting it to the desired value.  There may also be other code in\ncore mm or in arch which do similar things.\n\nThe consequence of the bug is loss of data integrity due to msync, and\nloss of dirty page accounting accuracy.  XIP\u0027s __xip_unmap could easily\nalso be unreliable (depending on the exact XIP locking scheme), which can\nlead to data corruption.\n\nFix this by having an option to always take ptl to check the pte in\npage_check_address.\n\nIt\u0027s possible to retain this optimization for page_referenced and\ntry_to_unmap.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Jared Hulbert \u003cjaredeh@gmail.com\u003e\nCc: Carsten Otte \u003ccotte@freenet.de\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nAcked-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "cddb8a5c14aa89810b40495d94d3d2a0faee6619",
      "tree": "d0b47b071f7d2dd1d6f9c36084aa8cfcef90d1da",
      "parents": [
        "7906d00cd1f687268f0a3599442d113767795ae6"
      ],
      "author": {
        "name": "Andrea Arcangeli",
        "email": "andrea@qumranet.com",
        "time": "Mon Jul 28 15:46:29 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Jul 28 16:30:21 2008 -0700"
      },
      "message": "mmu-notifiers: core\n\nWith KVM/GFP/XPMEM there isn\u0027t just the primary CPU MMU pointing to pages.\n There are secondary MMUs (with secondary sptes and secondary tlbs) too.\nsptes in the kvm case are shadow pagetables, but when I say spte in\nmmu-notifier context, I mean \"secondary pte\".  In GRU case there\u0027s no\nactual secondary pte and there\u0027s only a secondary tlb because the GRU\nsecondary MMU has no knowledge about sptes and every secondary tlb miss\nevent in the MMU always generates a page fault that has to be resolved by\nthe CPU (this is not the case of KVM where the a secondary tlb miss will\nwalk sptes in hardware and it will refill the secondary tlb transparently\nto software if the corresponding spte is present).  The same way\nzap_page_range has to invalidate the pte before freeing the page, the spte\n(and secondary tlb) must also be invalidated before any page is freed and\nreused.\n\nCurrently we take a page_count pin on every page mapped by sptes, but that\nmeans the pages can\u0027t be swapped whenever they\u0027re mapped by any spte\nbecause they\u0027re part of the guest working set.  Furthermore a spte unmap\nevent can immediately lead to a page to be freed when the pin is released\n(so requiring the same complex and relatively slow tlb_gather smp safe\nlogic we have in zap_page_range and that can be avoided completely if the\nspte unmap event doesn\u0027t require an unpin of the page previously mapped in\nthe secondary MMU).\n\nThe mmu notifiers allow kvm/GRU/XPMEM to attach to the tsk-\u003emm and know\nwhen the VM is swapping or freeing or doing anything on the primary MMU so\nthat the secondary MMU code can drop sptes before the pages are freed,\navoiding all page pinning and allowing 100% reliable swapping of guest\nphysical address space.  Furthermore it avoids the code that teardown the\nmappings of the secondary MMU, to implement a logic like tlb_gather in\nzap_page_range that would require many IPI to flush other cpu tlbs, for\neach fixed number of spte unmapped.\n\nTo make an example: if what happens on the primary MMU is a protection\ndowngrade (from writeable to wrprotect) the secondary MMU mappings will be\ninvalidated, and the next secondary-mmu-page-fault will call\nget_user_pages and trigger a do_wp_page through get_user_pages if it\ncalled get_user_pages with write\u003d1, and it\u0027ll re-establishing an updated\nspte or secondary-tlb-mapping on the copied page.  Or it will setup a\nreadonly spte or readonly tlb mapping if it\u0027s a guest-read, if it calls\nget_user_pages with write\u003d0.  This is just an example.\n\nThis allows to map any page pointed by any pte (and in turn visible in the\nprimary CPU MMU), into a secondary MMU (be it a pure tlb like GRU, or an\nfull MMU with both sptes and secondary-tlb like the shadow-pagetable layer\nwith kvm), or a remote DMA in software like XPMEM (hence needing of\nschedule in XPMEM code to send the invalidate to the remote node, while no\nneed to schedule in kvm/gru as it\u0027s an immediate event like invalidating\nprimary-mmu pte).\n\nAt least for KVM without this patch it\u0027s impossible to swap guests\nreliably.  And having this feature and removing the page pin allows\nseveral other optimizations that simplify life considerably.\n\nDependencies:\n\n1) mm_take_all_locks() to register the mmu notifier when the whole VM\n   isn\u0027t doing anything with \"mm\".  This allows mmu notifier users to keep\n   track if the VM is in the middle of the invalidate_range_begin/end\n   critical section with an atomic counter incraese in range_begin and\n   decreased in range_end.  No secondary MMU page fault is allowed to map\n   any spte or secondary tlb reference, while the VM is in the middle of\n   range_begin/end as any page returned by get_user_pages in that critical\n   section could later immediately be freed without any further\n   -\u003einvalidate_page notification (invalidate_range_begin/end works on\n   ranges and -\u003einvalidate_page isn\u0027t called immediately before freeing\n   the page).  To stop all page freeing and pagetable overwrites the\n   mmap_sem must be taken in write mode and all other anon_vma/i_mmap\n   locks must be taken too.\n\n2) It\u0027d be a waste to add branches in the VM if nobody could possibly\n   run KVM/GRU/XPMEM on the kernel, so mmu notifiers will only enabled if\n   CONFIG_KVM\u003dm/y.  In the current kernel kvm won\u0027t yet take advantage of\n   mmu notifiers, but this already allows to compile a KVM external module\n   against a kernel with mmu notifiers enabled and from the next pull from\n   kvm.git we\u0027ll start using them.  And GRU/XPMEM will also be able to\n   continue the development by enabling KVM\u003dm in their config, until they\n   submit all GRU/XPMEM GPLv2 code to the mainline kernel.  Then they can\n   also enable MMU_NOTIFIERS in the same way KVM does it (even if KVM\u003dn).\n   This guarantees nobody selects MMU_NOTIFIER\u003dy if KVM and GRU and XPMEM\n   are all \u003dn.\n\nThe mmu_notifier_register call can fail because mm_take_all_locks may be\ninterrupted by a signal and return -EINTR.  Because mmu_notifier_reigster\nis used when a driver startup, a failure can be gracefully handled.  Here\nan example of the change applied to kvm to register the mmu notifiers.\nUsually when a driver startups other allocations are required anyway and\n-ENOMEM failure paths exists already.\n\n struct  kvm *kvm_arch_create_vm(void)\n {\n        struct kvm *kvm \u003d kzalloc(sizeof(struct kvm), GFP_KERNEL);\n+       int err;\n\n        if (!kvm)\n                return ERR_PTR(-ENOMEM);\n\n        INIT_LIST_HEAD(\u0026kvm-\u003earch.active_mmu_pages);\n\n+       kvm-\u003earch.mmu_notifier.ops \u003d \u0026kvm_mmu_notifier_ops;\n+       err \u003d mmu_notifier_register(\u0026kvm-\u003earch.mmu_notifier, current-\u003emm);\n+       if (err) {\n+               kfree(kvm);\n+               return ERR_PTR(err);\n+       }\n+\n        return kvm;\n }\n\nmmu_notifier_unregister returns void and it\u0027s reliable.\n\nThe patch also adds a few needed but missing includes that would prevent\nkernel to compile after these changes on non-x86 archs (x86 didn\u0027t need\nthem by luck).\n\n[akpm@linux-foundation.org: coding-style fixes]\n[akpm@linux-foundation.org: fix mm/filemap_xip.c build]\n[akpm@linux-foundation.org: fix mm/mmu_notifier.c build]\nSigned-off-by: Andrea Arcangeli \u003candrea@qumranet.com\u003e\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Jack Steiner \u003csteiner@sgi.com\u003e\nCc: Robin Holt \u003cholt@sgi.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Kanoj Sarcar \u003ckanojsarcar@yahoo.com\u003e\nCc: Roland Dreier \u003crdreier@cisco.com\u003e\nCc: Steve Wise \u003cswise@opengridcomputing.com\u003e\nCc: Avi Kivity \u003cavi@qumranet.com\u003e\nCc: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nCc: Anthony Liguori \u003caliguori@us.ibm.com\u003e\nCc: Chris Wright \u003cchrisw@redhat.com\u003e\nCc: Marcelo Tosatti \u003cmarcelo@kvack.org\u003e\nCc: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nCc: \"Paul E. McKenney\" \u003cpaulmck@us.ibm.com\u003e\nCc: Izik Eidus \u003cizike@qumranet.com\u003e\nCc: Anthony Liguori \u003caliguori@us.ibm.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "2f1936b87783a3a56c9441b27b9ba7a747f11e8e",
      "tree": "024a0f3da74ba6365f209d03685133760146149b",
      "parents": [
        "c82e42da8a6b2f3a85dc4d4278cb8238702f8f64"
      ],
      "author": {
        "name": "Miklos Szeredi",
        "email": "mszeredi@suse.cz",
        "time": "Tue Jun 24 16:50:14 2008 +0200"
      },
      "committer": {
        "name": "Al Viro",
        "email": "viro@zeniv.linux.org.uk",
        "time": "Sat Jul 26 20:53:16 2008 -0400"
      },
      "message": "[patch 3/5] vfs: change remove_suid() to file_remove_suid()\n\nAll calls to remove_suid() are made with a file pointer, because\n(similarly to file_update_time) it is called when the file is written.\n\nClean up callers by passing in a file instead of a dentry.\n\nSigned-off-by: Miklos Szeredi \u003cmszeredi@suse.cz\u003e\n"
    },
    {
      "commit": "70688e4dd1647f0ceb502bbd5964fa344c5eb411",
      "tree": "e0bd8c3b4b6050c067a453d800c2e87948d1abaf",
      "parents": [
        "30afcb4bd2762fa4b87b17ada9500aa46dc10b1b"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Mon Apr 28 02:13:02 2008 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@linux-foundation.org",
        "time": "Mon Apr 28 08:58:23 2008 -0700"
      },
      "message": "xip: support non-struct page backed memory\n\nConvert XIP to support non-struct page backed memory, using VM_MIXEDMAP for\nthe user mappings.\n\nThis requires the get_xip_page API to be changed to an address based one.\nImprove the API layering a little bit too, while we\u0027re here.\n\nThis is required in order to support XIP filesystems on memory that isn\u0027t\nbacked with struct page (but memory with struct page is still supported too).\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nAcked-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nCc: Jared Hulbert \u003cjaredeh@gmail.com\u003e\nCc: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "2004dc8eec1b4f0692b3be87ea80c70faa44d619",
      "tree": "9458abfdecf29c08a33cccb845eb273c70ad49c5",
      "parents": [
        "476aed3870b26735c4fcfdaa95420fa9e1de5119"
      ],
      "author": {
        "name": "Jan Kara",
        "email": "jack@suse.cz",
        "time": "Fri Feb 08 04:20:11 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Fri Feb 08 09:22:32 2008 -0800"
      },
      "message": "Use pgoff_t instead of unsigned long\n\nConvert variables containing page indexes to pgoff_t.\n\nSigned-off-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "eebd2aa355692afaf9906f62118620f1a1c19dbb",
      "tree": "207eead3a736963c3e50942038c463f2f611ccce",
      "parents": [
        "b98348bdd08dc4ec11828aa98a78edde15c53cfa"
      ],
      "author": {
        "name": "Christoph Lameter",
        "email": "clameter@sgi.com",
        "time": "Mon Feb 04 22:28:29 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Feb 05 09:44:13 2008 -0800"
      },
      "message": "Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user\n\nSimplify page cache zeroing of segments of pages through 3 functions\n\nzero_user_segments(page, start1, end1, start2, end2)\n\n        Zeros two segments of the page. It takes the position where to\n        start and end the zeroing which avoids length calculations and\n\tmakes code clearer.\n\nzero_user_segment(page, start, end)\n\n        Same for a single segment.\n\nzero_user(page, start, length)\n\n        Length variant for the case where we know the length.\n\nWe remove the zero_user_page macro. Issues:\n\n1. Its a macro. Inline functions are preferable.\n\n2. The KM_USER0 macro is only defined for HIGHMEM.\n\n   Having to treat this special case everywhere makes the\n   code needlessly complex. The parameter for zeroing is always\n   KM_USER0 except in one single case that we open code.\n\nAvoiding KM_USER0 makes a lot of code not having to be dealing\nwith the special casing for HIGHMEM anymore. Dealing with\nkmap is only necessary for HIGHMEM configurations. In those\nconfigurations we use KM_USER0 like we do for a series of other\nfunctions defined in highmem.h.\n\nSince KM_USER0 is depends on HIGHMEM the existing zero_user_page\nfunction could not be a macro. zero_user_* functions introduced\nhere can be be inline because that constant is not used when these\nfunctions are called.\n\nAlso extract the flushing of the caches to be outside of the kmap.\n\n[akpm@linux-foundation.org: fix nfs and ntfs build]\n[akpm@linux-foundation.org: fix ntfs build some more]\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: Steven French \u003csfrench@us.ibm.com\u003e\nCc: Michael Halcrow \u003cmhalcrow@us.ibm.com\u003e\nCc: \u003clinux-ext4@vger.kernel.org\u003e\nCc: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nCc: Trond Myklebust \u003ctrond.myklebust@fys.uio.no\u003e\nCc: \"J. Bruce Fields\" \u003cbfields@fieldses.org\u003e\nCc: Anton Altaparmakov \u003caia21@cantab.net\u003e\nCc: Mark Fasheh \u003cmark.fasheh@oracle.com\u003e\nCc: David Chinner \u003cdgc@sgi.com\u003e\nCc: Michael Halcrow \u003cmhalcrow@us.ibm.com\u003e\nCc: Steven French \u003csfrench@us.ibm.com\u003e\nCc: Steven Whitehouse \u003cswhiteho@redhat.com\u003e\nCc: Trond Myklebust \u003ctrond.myklebust@fys.uio.no\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "c51b1a160b63304720d49479986915e4c475a2cf",
      "tree": "88de6d01e76ead9920a8b3113830715224af0970",
      "parents": [
        "0f94e87cdeaaac9f0f9a28a5dd2a5070b87cd3e8"
      ],
      "author": {
        "name": "Akinobu Mita",
        "email": "akinobu.mita@gmail.com",
        "time": "Tue Jan 08 15:32:57 2008 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Jan 08 16:10:36 2008 -0800"
      },
      "message": "xip: fix get_zeroed_page with __GFP_HIGHMEM\n\nThe use of get_zeroed_page() with __GFP_HIGHMEM is invalid.  Use\nalloc_page() with __GFP_ZERO instead of invalid get_zeroed_page().\n\n(This patch is only compile tested)\n\nCc: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Akinobu Mita \u003cakinobu.mita@gmail.com\u003e\nAcked-by: Hugh Dickins \u003chugh@veritas.com\u003e\nAcked-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "369b8f5a70402d9fe77006cd0044c8a3fcd08430",
      "tree": "7796820d04e7278b37e5dadeda65fe3579dd4ab2",
      "parents": [
        "4670df831cb479ba57dd0fa0b8a9eb88cc7129be"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Tue Dec 04 23:45:25 2007 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Wed Dec 05 09:21:20 2007 -0800"
      },
      "message": "mm: fix XIP file writes\n\nWriting to XIP files at a non-page-aligned offset results in data corruption\nbecause the writes were always sent to the start of the page.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Christian Borntraeger \u003cborntraeger@de.ibm.com\u003e\nAcked-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "4a9e5ef1f4f15205e477817a5cefc34bd3f65f55",
      "tree": "51f52086ecbccc3f41955d8d12293ef7a566a05b",
      "parents": [
        "eb2be189317d031895b5ca534fbf735eb546158b"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Tue Oct 16 01:24:58 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Oct 16 09:42:54 2007 -0700"
      },
      "message": "mm: write iovec cleanup\n\nHide some of the open-coded nr_segs tests into the iovec helpers.  This is all\nto simplify generic_file_buffered_write, because that gets more complex in the\nnext patch.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "83c54070ee1a2d05c89793884bea1a03f2851ed4",
      "tree": "dc732f5a9b93fb7004ed23f551bd98b77cc580e0",
      "parents": [
        "d0217ac04ca6591841e5665f518e38064f4e65bd"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Thu Jul 19 01:47:05 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Jul 19 10:04:41 2007 -0700"
      },
      "message": "mm: fault feedback #2\n\nThis patch completes Linus\u0027s wish that the fault return codes be made into\nbit flags, which I agree makes everything nicer.  This requires requires\nall handle_mm_fault callers to be modified (possibly the modifications\nshould go further and do things like fault accounting in handle_mm_fault --\nhowever that would be for another patch).\n\n[akpm@linux-foundation.org: fix alpha build]\n[akpm@linux-foundation.org: fix s390 build]\n[akpm@linux-foundation.org: fix sparc build]\n[akpm@linux-foundation.org: fix sparc64 build]\n[akpm@linux-foundation.org: fix ia64 build]\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\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: Bryan Wu \u003cbryan.wu@analog.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: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nCc: Hirokazu Takata \u003ctakata@linux-m32r.org\u003e\nCc: Geert Uytterhoeven \u003cgeert@linux-m68k.org\u003e\nCc: Roman Zippel \u003czippel@linux-m68k.org\u003e\nCc: Greg Ungerer \u003cgerg@uclinux.org\u003e\nCc: Matthew Wilcox \u003cwilly@debian.org\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\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\nAcked-by: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nAcked-by: Haavard Skinnemoen \u003chskinnemoen@atmel.com\u003e\nAcked-by: Ralf Baechle \u003cralf@linux-mips.org\u003e\nAcked-by: Andi Kleen \u003cak@muc.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\n[ Still apparently needs some ARM and PPC loving - Linus ]\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "d0217ac04ca6591841e5665f518e38064f4e65bd",
      "tree": "d3309094bb734d34773f97d642593e298a5cfcfc",
      "parents": [
        "ed2f2f9b3ff8debdf512f7687b232c3c1d7d60d7"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Thu Jul 19 01:47:03 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Jul 19 10:04:41 2007 -0700"
      },
      "message": "mm: fault feedback #1\n\nChange -\u003efault prototype.  We now return an int, which contains\nVM_FAULT_xxx code in the low byte, and FAULT_RET_xxx code in the next byte.\n FAULT_RET_ code tells the VM whether a page was found, whether it has been\nlocked, and potentially other things.  This is not quite the way he wanted\nit yet, but that\u0027s changed in the next patch (which requires changes to\narch code).\n\nThis means we no longer set VM_CAN_INVALIDATE in the vma in order to say\nthat a page is locked which requires filemap_nopage to go away (because we\ncan no longer remain backward compatible without that flag), but we were\ngoing to do that anyway.\n\nstruct fault_data is renamed to struct vm_fault as Linus asked. address\nis now a void __user * that we should firmly encourage drivers not to use\nwithout really good reason.\n\nThe page is now returned via a page pointer in the vm_fault struct.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "54cb8821de07f2ffcd28c380ce9b93d5784b40d7",
      "tree": "1de676534963d96af42863b20191bc9f80060dea",
      "parents": [
        "d00806b183152af6d24f46f0c33f14162ca1262a"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "npiggin@suse.de",
        "time": "Thu Jul 19 01:46:59 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Jul 19 10:04:41 2007 -0700"
      },
      "message": "mm: merge populate and nopage into fault (fixes nonlinear)\n\nNonlinear mappings are (AFAIKS) simply a virtual memory concept that encodes\nthe virtual address -\u003e file offset differently from linear mappings.\n\n-\u003epopulate is a layering violation because the filesystem/pagecache code\nshould need to know anything about the virtual memory mapping.  The hitch here\nis that the -\u003enopage handler didn\u0027t pass down enough information (ie.  pgoff).\n But it is more logical to pass pgoff rather than have the -\u003enopage function\ncalculate it itself anyway (because that\u0027s a similar layering violation).\n\nHaving the populate handler install the pte itself is likewise a nasty thing\nto be doing.\n\nThis patch introduces a new fault handler that replaces -\u003enopage and\n-\u003epopulate and (later) -\u003enopfn.  Most of the old mechanism is still in place\nso there is a lot of duplication and nice cleanups that can be removed if\neveryone switches over.\n\nThe rationale for doing this in the first place is that nonlinear mappings are\nsubject to the pagefault vs invalidate/truncate race too, and it seemed stupid\nto duplicate the synchronisation logic rather than just consolidate the two.\n\nAfter this patch, MAP_NONBLOCK no longer sets up ptes for pages present in\npagecache.  Seems like a fringe functionality anyway.\n\nNOPAGE_REFAULT is removed.  This should be implemented with -\u003efault, and no\nusers have hit mainline yet.\n\n[akpm@linux-foundation.org: cleanup]\n[randy.dunlap@oracle.com: doc. fixes for readahead]\n[akpm@linux-foundation.org: build fix]\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nSigned-off-by: Randy Dunlap \u003crandy.dunlap@oracle.com\u003e\nCc: Mark Fasheh \u003cmark.fasheh@oracle.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "d054fe3d10cc1f9aec01378c38caa32dffdd0090",
      "tree": "3c54ddbac87b25eb44526cf2ad4303f21dbe3cdd",
      "parents": [
        "932cc6d4f7c35bbf70bce8cc865b6033ff49c9c0"
      ],
      "author": {
        "name": "Carsten Otte",
        "email": "cotte@de.ibm.com",
        "time": "Fri Jun 15 08:16:22 2007 +0200"
      },
      "committer": {
        "name": "Jens Axboe",
        "email": "jens.axboe@oracle.com",
        "time": "Tue Jul 10 08:04:15 2007 +0200"
      },
      "message": "xip sendfile removal\n\nThis patch removes xip_file_sendfile, the sendfile implementation for\nxip without replacement. Those customers that use xip on s390 are not\nusing sendfile() as far as we know, and so far s390 is the only platform\nthis could potentially be used on so far.\nHaving sendfile is not a popular feature for execute in place file\nsystems, however we have a working implementation of splice_read() based\non fs/splice.c if anyone asks for it.\nAt this point in time, it does not seem preferable to merge\nsplice_read() for xip because it causes extra maintenence effort due to\ncode duplication and it requires struct page behind the xip memory\nsegment. We\u0027d like to get rid of that in favor of supporting flash based\nembedded platforms (Monta Vista work) soon.\n\nSigned-off-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n"
    },
    {
      "commit": "e8edc6e03a5c8562dc70a6d969f732bdb355a7e7",
      "tree": "fc86c863655128a7041dfe613d14393d761fa7b9",
      "parents": [
        "ff1be9ad61e3e17ba83702d8ed0b534e5b8ee15c"
      ],
      "author": {
        "name": "Alexey Dobriyan",
        "email": "adobriyan@gmail.com",
        "time": "Mon May 21 01:22:52 2007 +0400"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Mon May 21 09:18:19 2007 -0700"
      },
      "message": "Detach sched.h from mm.h\n\nFirst thing mm.h does is including sched.h solely for can_do_mlock() inline\nfunction which has \"current\" dereference inside. By dealing with can_do_mlock()\nmm.h can be detached from sched.h which is good. See below, why.\n\nThis patch\na) removes unconditional inclusion of sched.h from mm.h\nb) makes can_do_mlock() normal function in mm/mlock.c\nc) exports can_do_mlock() to not break compilation\nd) adds sched.h inclusions back to files that were getting it indirectly.\ne) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were\n   getting them indirectly\n\nNet result is:\na) mm.h users would get less code to open, read, preprocess, parse, ... if\n   they don\u0027t need sched.h\nb) sched.h stops being dependency for significant number of files:\n   on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,\n   after patch it\u0027s only 3744 (-8.3%).\n\nCross-compile tested on\n\n\tall arm defconfigs, all mips defconfigs, all powerpc defconfigs,\n\talpha alpha-up\n\tarm\n\ti386 i386-up i386-defconfig i386-allnoconfig\n\tia64 ia64-up\n\tm68k\n\tmips\n\tparisc parisc-up\n\tpowerpc powerpc-up\n\ts390 s390-up\n\tsparc sparc-up\n\tsparc64 sparc64-up\n\tum-x86_64\n\tx86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig\n\nas well as my two usual configs.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "01f2705daf5a36208e69d7cf95db9c330f843af6",
      "tree": "2d2c7a042c2466ed985f6e0950450c099f02725f",
      "parents": [
        "38a23e311b6cd389b9d8af2ea6c28c8cffbe581c"
      ],
      "author": {
        "name": "Nate Diller",
        "email": "nate.diller@gmail.com",
        "time": "Wed May 09 02:35:07 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Wed May 09 12:30:55 2007 -0700"
      },
      "message": "fs: convert core functions to zero_user_page\n\nIt\u0027s very common for file systems to need to zero part or all of a page,\nthe simplist way is just to use kmap_atomic() and memset().  There\u0027s\nactually a library function in include/linux/highmem.h that does exactly\nthat, but it\u0027s confusingly named memclear_highpage_flush(), which is\ndescriptive of *how* it does the work rather than what the *purpose* is.\nSo this patchset renames the function to zero_user_page(), and calls it\nfrom the various places that currently open code it.\n\nThis first patch introduces the new function call, and converts all the\ncore kernel callsites, both the open-coded ones and the old\nmemclear_highpage_flush() ones.  Following this patch is a series of\nconversions for each file system individually, per AKPM, and finally a\npatch deprecating the old call.  The diffstat below shows the entire\npatchset.\n\n[akpm@linux-foundation.org: fix a few things]\nSigned-off-by: Nate Diller \u003cnate.diller@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "a76c0b976310bbb1b6eaecaaae465af194134477",
      "tree": "4f23a06244f7cb6689bd7ded80843c481968a283",
      "parents": [
        "90ed52ebe48181d3c5427b3bd1d24f659e7575ad"
      ],
      "author": {
        "name": "Carsten Otte",
        "email": "cotte@de.ibm.com",
        "time": "Thu Mar 29 01:20:39 2007 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Thu Mar 29 08:22:26 2007 -0700"
      },
      "message": "[PATCH] mm: fix xip issue with /dev/zero\n\nFix the bug, that reading into xip mapping from /dev/zero fills the user\npage table with ZERO_PAGE() entries.  Later on, xip cannot tell which pages\nhave been ZERO_PAGE() filled by access to a sparse mapping, and which ones\norigin from /dev/zero.  It will unmap ZERO_PAGE from all mappings when\nfilling the sparse hole with data.  xip does now use its own zeroed page\nfor its sparse mappings.  Please apply.\n\nSigned-off-by: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "701dfbc1cbdd42b814dd76a885c4b73f97011d08",
      "tree": "4a8e8185616e7cc9c115de564bd2c6d626662217",
      "parents": [
        "8339f0008c47cdd921c73f6d53d5588b5484f93c"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hugh@veritas.com",
        "time": "Mon Jan 29 21:24:08 2007 +0000"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.linux-foundation.org",
        "time": "Tue Jan 30 08:33:32 2007 -0800"
      },
      "message": "[PATCH] mm: mremap correct rmap accounting\n\nNick Piggin points out that page accounting on MIPS multiple ZERO_PAGEs\nis not maintained by its move_pte, and could lead to freeing a ZERO_PAGE.\n\nInstead of complicating that move_pte, just forget the minor optimization\nwhen mremapping, and change the one thing which needed it for correctness\n- filemap_xip use ZERO_PAGE(0) throughout instead of according to address.\n\n[ \"There is no block device driver one could use for XIP on mips\n   platforms\" - Carsten Otte ]\n\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Andrew Morton \u003cakpm@osdl.org\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Carsten Otte \u003ccotte@de.ibm.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n"
    },
    {
      "commit": "7de6b8057976584e5a422574cae4dd21c677b4d4",
      "tree": "900bc533401715eec4e44b73e388a74f08b3f1a5",
      "parents": [
        "19900cdee29c812857ce938ab449e1053d516252"
      ],
      "author": {
        "name": "Nick Piggin",
        "email": "nickpiggin@yahoo.com.au",
        "time": "Fri Dec 22 01:09:33 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.osdl.org",
        "time": "Fri Dec 22 08:55:49 2006 -0800"
      },
      "message": "[PATCH] mm: more rmap debugging\n\nAdd more debugging in the rmap code in an attempt to locate to source of\nthe occasional \"mapcount went negative\" assertions.\n\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": "d3ac7f892b7d07d61d0895caa4f6e190e43112f8",
      "tree": "0ff35e7e5ab822b600075d79910d3cc136ba07ef",
      "parents": [
        "f3a43f3f64bff8e205c3702f6b4804d66e306848"
      ],
      "author": {
        "name": "Josef \"Jeff\" Sipek",
        "email": "jsipek@cs.sunysb.edu",
        "time": "Fri Dec 08 02:36:44 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@woody.osdl.org",
        "time": "Fri Dec 08 08:28:43 2006 -0800"
      },
      "message": "[PATCH] mm: change uses of f_{dentry,vfsmnt} to use f_path\n\nChange all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in linux/mm/.\n\nSigned-off-by: Josef \"Jeff\" Sipek \u003cjsipek@cs.sunysb.edu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "f5e54d6e53a20cef45af7499e86164f0e0d16bb2",
      "tree": "cb92acbb89b84796261bf5563182261ec5654127",
      "parents": [
        "a052b68b1e7a31f1e6a721290035e9deb0f6fed9"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@lst.de",
        "time": "Wed Jun 28 04:26:44 2006 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Wed Jun 28 14:59:04 2006 -0700"
      },
      "message": "[PATCH] mark address_space_operations const\n\nSame as with already do with the file operations: keep them in .rodata and\nprevents people from doing runtime patching.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Steven French \u003csfrench@us.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "870f481793b585323fbda3e87c54efc116f46351",
      "tree": "08dce269f14c18ae1b1682d3cb0f149b938d40bb",
      "parents": [
        "3542c6e18f6470bad2bde1e94331e4f488a8d3f1"
      ],
      "author": {
        "name": "Christoph Hellwig",
        "email": "hch@lst.de",
        "time": "Mon Jan 09 20:52:01 2006 -0800"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Tue Jan 10 08:01:30 2006 -0800"
      },
      "message": "[PATCH] replace inode_update_time with file_update_time\n\nTo allow various options to work per-mount instead of per-sb we need a\nstruct vfsmount when updating ctime and mtime.  This preparation patch\nreplaces the inode_update_time routine with a file_update_atime routine so\nwe can easily get at the vfsmount.  (and the file makes more sense in this\ncontext anyway).  Also get rid of the unused second argument - we always\nwant to update the ctime when calling this routine.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Al Viro \u003cviro@ftp.linux.org.uk\u003e\nCc: Anton Altaparmakov \u003caia21@cantab.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n"
    },
    {
      "commit": "1b1dcc1b57a49136f118a0f16367256ff9994a69",
      "tree": "b0b36d4f41d28c9d6514fb309d33c1a084d6309b",
      "parents": [
        "794ee1baee1c26be40410233e6c20bceb2b03c08"
      ],
      "author": {
        "name": "Jes Sorensen",
        "email": "jes@sgi.com",
        "time": "Mon Jan 09 15:59:24 2006 -0800"
      },
      "committer": {
        "name": "Ingo Molnar",
        "email": "mingo@hera.kernel.org",
        "time": "Mon Jan 09 15:59:24 2006 -0800"
      },
      "message": "[PATCH] mutex subsystem, semaphore to mutex: VFS, -\u003ei_sem\n\nThis patch converts the inode semaphore to a mutex. I have tested it on\nXFS and compiled as much as one can consider on an ia64. Anyway your\nluck with it might be different.\n\nModified-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n\n(finished the conversion)\n\nSigned-off-by: Jes Sorensen \u003cjes@sgi.com\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n"
    },
    {
      "commit": "c0718806cf955d5eb51ea77bffb5b21d9bba4972",
      "tree": "bd29659bbff68604127439ec8144230a40772621",
      "parents": [
        "67b02f119df50ffad5a4e9e53ea4c896535862cd"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hugh@veritas.com",
        "time": "Sat Oct 29 18:16:31 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sat Oct 29 21:40:41 2005 -0700"
      },
      "message": "[PATCH] mm: rmap with inner ptlock\n\nrmap\u0027s page_check_address descend without page_table_lock.  First just\npte_offset_map in case there\u0027s no pte present worth locking for, then take\npage_table_lock for the full check, and pass ptl back to caller in the same\nstyle as pte_offset_map_lock.  __xip_unmap, page_referenced_one and\ntry_to_unmap_one use pte_unmap_unlock.  try_to_unmap_cluster also.\n\npage_check_address reformatted to avoid progressive indentation.  No use is\nmade of its one error code, return NULL when it fails.\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": "67b02f119df50ffad5a4e9e53ea4c896535862cd",
      "tree": "9d651e9e62b6ead325fc6bd872f3a6232d85e8a3",
      "parents": [
        "508034a32b819a2d40aa7ac0dbc8cd2e044c2de6"
      ],
      "author": {
        "name": "Hugh Dickins",
        "email": "hugh@veritas.com",
        "time": "Sat Oct 29 18:16:31 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Sat Oct 29 21:40:41 2005 -0700"
      },
      "message": "[PATCH] mm: xip_unmap ZERO_PAGE fix\n\nSmall fix to the PageReserved patch: the mips ZERO_PAGE(address) depends on\naddress, so __xip_unmap is wrong to initialize page with that before address\nis initialized; and in fact must re-evaluate it each iteration.\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": "afa597ba20e9ef55fc6283c1a564854b1c9f13c0",
      "tree": "56cbfbca20a3c59ef6b1d149f67185e8e8f3a85c",
      "parents": [
        "c5287ba132ff742e595d42c28b66cbba19522c4e"
      ],
      "author": {
        "name": "Carsten Otte",
        "email": "cotte@de.ibm.com",
        "time": "Fri Jul 15 03:56:30 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Fri Jul 15 09:54:50 2005 -0700"
      },
      "message": "[PATCH] execute-in-place fixes\n\nThis patch includes feedback from Andrew and Christoph. Thanks for\ntaking time to review.\n\nUse of empty_zero_page was eliminated to fix compilation for architectures\nthat don\u0027t have it.\n\nThis patch removes setting pages up-to-date in ext2_get_xip_page and all\nbug checks to verify that the page is indeed up to date.  Setting the page\nstate on mapping to userland is bogus.  None of the code patchs involved\nwith these pages in mm cares about the page state.\n\nstill on my ToDo list: identify a place outside second extended where\n__inode_direct_access should reside\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": "082ff0a9991dcea958785115fbba6dddd0dc280a",
      "tree": "1d98a032b5757365d553dfe035662bb81c119e8b",
      "parents": [
        "eb0a90b4970d667e9ae9df538710f12b8e78e442"
      ],
      "author": {
        "name": "Geert Uytterhoeven",
        "email": "geert@linux-m68k.org",
        "time": "Tue Jul 12 13:58:18 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@g5.osdl.org",
        "time": "Tue Jul 12 16:01:00 2005 -0700"
      },
      "message": "[PATCH] mm/filemap_xip.c compilation fix\n\nmm/filemap_xip.c: In function `__xip_unmap\u0027:\nmm/filemap_xip.c:194: request for member `pte\u0027 in something not a structure or union\n\nApparently pte_pfn() takes a pte_t, not a pointer to a pte_t.  From looking\nat asm/page.h, it seems to be the same on ia32 or ppc (iff\nSTRICT_MM_TYPECHECKS is enabled, which is disabled by default on ppc).\n\nAcked-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": "eb6fe0c388e43b02e261f0fdee60e42f6298d7f7",
      "tree": "3924bfbbbb10afc19f3bcd4963af14121f2c0553",
      "parents": [
        "6d79125bba55ee82701f1c7d4ebbc1aa20ecbe4e"
      ],
      "author": {
        "name": "Carsten Otte",
        "email": "cotte@de.ibm.com",
        "time": "Thu Jun 23 22:05:28 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Fri Jun 24 00:06:41 2005 -0700"
      },
      "message": "[PATCH] xip: reduce code duplication\n\nThis patch reworks filemap_xip.c with the goal to reduce code duplication\nfrom mm/filemap.c.  It applies agains 2.6.12-rc6-mm1.  Instead of\nimplementing the aio functions, this one implements the synchronous\nread/write functions only.  For readv and writev, the generic fallback is\nused.  For aio, we rely on the application doing the fallback.  Since our\n\"synchronous\" function does memcpy immediately anyway, there is no\nperformance difference between using the fallbacks or implementing each\noperation.\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": "ceffc078528befc008c6f2c2c4decda79eabd534",
      "tree": "a289e10162bdef0c0d9f6533f1a647b0fe1ed7a9",
      "parents": [
        "420edbcc09008342c7b2665453f6b370739aadb0"
      ],
      "author": {
        "name": "Carsten Otte",
        "email": "cotte@de.ibm.com",
        "time": "Thu Jun 23 22:05:25 2005 -0700"
      },
      "committer": {
        "name": "Linus Torvalds",
        "email": "torvalds@ppc970.osdl.org",
        "time": "Fri Jun 24 00:06:41 2005 -0700"
      },
      "message": "[PATCH] xip: fs/mm: execute in place\n\n- generic_file* file operations do no longer have a xip/non-xip split\n- filemap_xip.c implements a new set of fops that require get_xip_page\n  aop to work proper. all new fops are exported GPL-only (don\u0027t like to\n  see whatever code use those except GPL modules)\n- __xip_unmap now uses page_check_address, which is no longer static\n  in rmap.c, and defined in linux/rmap.h\n- mm/filemap.h is now much more clean, plainly having just Linus\u0027\n  inline funcs moved here from filemap.c\n- fix includes in filemap_xip to make it build cleanly on i386\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"
    }
  ]
}