)]}' { "log": [ { "commit": "2f569afd9ced9ebec9a6eb3dbf6f83429be0a7b4", "tree": "23a31763887d9505e62e9d7cc8ec2fa4b86bd380", "parents": [ "13214adf738abc92b0a00c0763fd3be79eebaa7c" ], "author": { "name": "Martin Schwidefsky", "email": "schwidefsky@de.ibm.com", "time": "Fri Feb 08 04:22:04 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Fri Feb 08 09:22:42 2008 -0800" }, "message": "CONFIG_HIGHPTE vs. sub-page page tables.\n\nBackground: I\u0027ve implemented 1K/2K page tables for s390. These sub-page\npage tables are required to properly support the s390 virtualization\ninstruction with KVM. The SIE instruction requires that the page tables\nhave 256 page table entries (pte) followed by 256 page status table entries\n(pgste). The pgstes are only required if the process is using the SIE\ninstruction. The pgstes are updated by the hardware and by the hypervisor\nfor a number of reasons, one of them is dirty and reference bit tracking.\nTo avoid wasting memory the standard pte table allocation should return\n1K/2K (31/64 bit) and 2K/4K if the process is using SIE.\n\nProblem: Page size on s390 is 4K, page table size is 1K or 2K. That means\nthe s390 version for pte_alloc_one cannot return a pointer to a struct\npage. Trouble is that with the CONFIG_HIGHPTE feature on x86 pte_alloc_one\ncannot return a pointer to a pte either, since that would require more than\n32 bit for the return value of pte_alloc_one (and the pte * would not be\naccessible since its not kmapped).\n\nSolution: The only solution I found to this dilemma is a new typedef: a\npgtable_t. For s390 pgtable_t will be a (pte *) - to be introduced with a\nlater patch. For everybody else it will be a (struct page *). The\nadditional problem with the initialization of the ptl lock and the\nNR_PAGETABLE accounting is solved with a constructor pgtable_page_ctor and\na destructor pgtable_page_dtor. The page table allocation and free\nfunctions need to call these two whenever a page table page is allocated or\nfreed. pmd_populate will get a pgtable_t instead of a struct page pointer.\n To get the pgtable_t back from a pmd entry that has been installed with\npmd_populate a new function pmd_pgtable is added. It replaces the pmd_page\ncall in free_pte_range and apply_to_pte_range.\n\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5e5419734c8719cbc01af959ad9c0844002c0df5", "tree": "a075dca3f719946689efa0245464855cbf2a20ce", "parents": [ "9f8f2172537de7af0b0fbd33502d18d52b1339bc" ], "author": { "name": "Benjamin Herrenschmidt", "email": "benh@kernel.crashing.org", "time": "Mon Feb 04 22:29:14 2008 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Tue Feb 05 09:44:18 2008 -0800" }, "message": "add mm argument to pte/pmd/pud/pgd_free\n\n(with Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e)\n\nThe pgd/pud/pmd/pte page table allocation functions get a mm_struct pointer as\nfirst argument. The free functions do not get the mm_struct argument. This\nis 1) asymmetrical and 2) to do mm related page table allocations the mm\nargument is needed on the free function as well.\n\n[kamalesh@linux.vnet.ibm.com: i386 fix]\n[akpm@linux-foundation.org: coding-syle fixes]\nSigned-off-by: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nCc: \u003clinux-arch@vger.kernel.org\u003e\nSigned-off-by: Kamalesh Babulal \u003ckamalesh@linux.vnet.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": "3a2cba993b0a04f258ab75e15cf3f08ada268dbd", "tree": "7f20f6cad40c1efe18dcf5eadfb8abbc3353f9aa", "parents": [ "6225e93735acaa09865bce746958f1046c2e0bc3" ], "author": { "name": "David Miller", "email": "davem@davemloft.net", "time": "Sun May 06 14:49:51 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Mon May 07 12:12:54 2007 -0700" }, "message": "Quicklist support for sparc64\n\nI ported this to sparc64 as per the patch below, tested on UP SunBlade1500 and\n24 cpu Niagara T1000.\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\nSigned-off-by: Christoph Lameter \u003cclameter@sgi.com\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Andi Kleen \u003cak@suse.de\u003e\nCc: \"Luck, Tony\" \u003ctony.luck@intel.com\u003e\nCc: William Lee Irwin III \u003cwli@holomorphy.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e18b890bb0881bbab6f4f1a6cd20d9c60d66b003", "tree": "4828be07e1c24781c264b42c5a75bcd968223c3f", "parents": [ "441e143e95f5aa1e04026cb0aa71c801ba53982f" ], "author": { "name": "Christoph Lameter", "email": "clameter@sgi.com", "time": "Wed Dec 06 20:33:20 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Thu Dec 07 08:39:25 2006 -0800" }, "message": "[PATCH] slab: remove kmem_cache_t\n\nReplace all uses of kmem_cache_t with struct kmem_cache.\n\nThe patch was generated using the following script:\n\n\t#!/bin/sh\n\t#\n\t# Replace one string by another in all the kernel sources.\n\t#\n\n\tset -e\n\n\tfor file in `find * -name \"*.c\" -o -name \"*.h\"|xargs grep -l $1`; do\n\t\tquilt add $file\n\t\tsed -e \"1,\\$s/$1/$2/g\" $file \u003e/tmp/$$\n\t\tmv /tmp/$$ $file\n\t\tquilt refresh\n\tdone\n\nThe script was run like this\n\n\tsh replace kmem_cache_t \"struct kmem_cache\"\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": "62c4f0a2d5a188f73a94f2cb8ea0dba3e7cf0a7f", "tree": "e85ca2d0dd43f90dccf758338764c3caa55f333f", "parents": [ "089f26d5e31b7bf42a9a8fefec08b30cd27f4b0e" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Wed Apr 26 12:56:16 2006 +0100" }, "committer": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Wed Apr 26 12:56:16 2006 +0100" }, "message": "Don\u0027t include linux/config.h from anywhere else in include/\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\n" }, { "commit": "3c936465249f863f322154ff1aaa628b84ee5750", "tree": "2bd7a229236f197d20a655133370e5d0c1bf886c", "parents": [ "05e28f9de65a38bb0c769080e91b6976e7e1e70c" ], "author": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Tue Jan 31 18:30:27 2006 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Mon Mar 20 01:11:14 2006 -0800" }, "message": "[SPARC64]: Kill pgtable quicklists and use SLAB.\n\nTaking a nod from the powerpc port.\n\nWith the per-cpu caching of both the page allocator and SLAB, the\npgtable quicklist scheme becomes relatively silly and primitive.\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "05e28f9de65a38bb0c769080e91b6976e7e1e70c", "tree": "e1d3fcc1381ea6612ce4c082ca8596e84b637216", "parents": [ "74bf4312fff083ab25c3f357cc653ada7995e5f6" ], "author": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Tue Jan 31 18:30:13 2006 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Mon Mar 20 01:11:13 2006 -0800" }, "message": "[SPARC64]: No need to D-cache color page tables any longer.\n\nUnlike the virtual page tables, the new TSB scheme does not\nrequire this ugly hack.\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "74bf4312fff083ab25c3f357cc653ada7995e5f6", "tree": "c23dea461e32485f4cd7ca4b8c33c632655eb906", "parents": [ "30d4d1ffed7098afe2641536d67eef150499da02" ], "author": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Tue Jan 31 18:29:18 2006 -0800" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Mon Mar 20 01:11:13 2006 -0800" }, "message": "[SPARC64]: Move away from virtual page tables, part 1.\n\nWe now use the TSB hardware assist features of the UltraSPARC\nMMUs.\n\nSMP is currently knowingly broken, we need to find another place\nto store the per-cpu base pointers. We hid them away in the TSB\nbase register, and that obviously will not work any more :-)\n\nAnother known broken case is non-8KB base page size.\n\nAlso noticed that flush_tlb_all() is not referenced anywhere, only\nthe internal __flush_tlb_all() (local cpu only) is used by the\nsparc64 port, so we can get rid of flush_tlb_all().\n\nThe kernel gets it\u0027s own 8KB TSB (swapper_tsb) and each address space\ngets it\u0027s own private 8K TSB. Later we can add code to dynamically\nincrease the size of per-process TSB as the RSS grows. An 8KB TSB is\ngood enough for up to about a 4MB RSS, after which the TSB starts to\nincur many capacity and conflict misses.\n\nWe even accumulate OBP translations into the kernel TSB.\n\nAnother area for refinement is large page size support. We could use\na secondary address space TSB to handle those.\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "6a9b490d5fd7f23c5bcd75f970e01633ad3136e3", "tree": "dd3ad10d43a5dd765705f32ff1fca6fc1bab88fd", "parents": [ "e0487992ce1dd7ae7da9c6aabdb19570bb95432b" ], "author": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Mon Sep 19 20:11:57 2005 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@sunset.davemloft.net", "time": "Mon Sep 19 20:11:57 2005 -0700" }, "message": "[SPARC64]: Move DCACHE_ALIASING_POSSIBLE define to asm/page.h\n\nThis showed that arch/sparc64/kernel/ptrace.c was not getting\nthe define properly, and thus the code protected by this ifdef\nwas never actually compiled before. So fix that too.\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "8edf72ebce06d52e855438ec18fe20dea7a4cc04", "tree": "a75409d5ae04a31209d52b11983158d8d4d4a199", "parents": [ "bfd4bda097f8758d28e632ff2035e25577f6b060" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Thu May 05 14:27:56 2005 -0700" }, "committer": { "name": "David S. Miller", "email": "davem@davemloft.net", "time": "Thu May 05 14:27:56 2005 -0700" }, "message": "[SPARC64]: Kill useless __pte_alloc_one_kernel indirection\n\nwarning: untested, but it there\u0027s not too much chance for screwups\n\nSigned-off-by: David S. Miller \u003cdavem@davemloft.net\u003e\n" }, { "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d", "parents": [], "author": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n" } ] }