)]}' { "log": [ { "commit": "ef1ff6b8c08954bc203b59e887d1e580dd91755a", "tree": "6bffcfc02cb57087362defe4cf045c6f70f62a6d", "parents": [ "2c6854fdadf940678fd54779b778f6faafb870bb" ], "author": { "name": "From: Mel Gorman", "email": "mel@csn.ul.ie", "time": "Wed Sep 23 15:56:05 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Sep 24 07:20:56 2009 -0700" }, "message": "hugetlbfs: do not call user_shm_lock() for MAP_HUGETLB fix\n\nCommit 6bfde05bf5c (\"hugetlbfs: allow the creation of files suitable for\nMAP_PRIVATE on the vfs internal mount\") altered can_do_hugetlb_shm() to\ncheck if a file is being created for shared memory or mmap(). If this\nreturns false, we then unconditionally call user_shm_lock() triggering a\nwarning. This block should never be entered for MAP_HUGETLB. This\npatch partially reverts the problem and fixes the check.\n\nSigned-off-by: Eric B Munson \u003cebmunson@us.ibm.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "2bcd57ab61e7cabed626226a3771617981c11ce1", "tree": "687c0c35fb2a632cb8c56b2729f9c3873c9461bd", "parents": [ "95e0d86badc410d525ea7218fd32df7bfbf9c837" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Thu Sep 24 04:22:25 2009 +0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 18:13:10 2009 -0700" }, "message": "headers: utsname.h redux\n\n* remove asm/atomic.h inclusion from linux/utsname.h --\n not needed after kref conversion\n * remove linux/utsname.h inclusion from files which do not need it\n\nNOTE: it looks like fs/binfmt_elf.c do not need utsname.h, however\ndue to some personality stuff it _is_ needed -- cowardly leave ELF-related\nheaders and files alone.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9e12a7e7d89ad813d01092890010cf67d0f914bd", "tree": "0f7510f8f3364833024cb92267b2d39183fe803d", "parents": [ "a7ddbf891b8236b51fb3c9574555eb7d7d13aca6", "2df54806389205d76bc3d1ce8a10cc14889ddec9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 15:22:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 15:22:41 2009 -0700" }, "message": "Merge branch \u0027bugfixes\u0027 of git://git.linux-nfs.org/projects/trondmy/nfs-2.6\n\n* \u0027bugfixes\u0027 of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:\n NFS: Propagate \u0027fsc\u0027 mount option through automounts\n sunrpc/rpc_pipe: fix kernel-doc notation\n sunrpc: xdr_xcode_hyper helpers cannot presume 64-bit alignment\n NFS: Add nfs_alloc_parsed_mount_data\n NFS/RPC: fix problems with reestablish_timeout and related code.\n NFS: Get rid of the NFS_MOUNT_VER3 and NFS_MOUNT_TCP flags\n" }, { "commit": "2df54806389205d76bc3d1ce8a10cc14889ddec9", "tree": "7c1c170e39d50dd105792e25522e249ea371758e", "parents": [ "4111d4fde6aa04a2e42c43d0e74593e6144b0f0f" ], "author": { "name": "David Howells", "email": "dhowells@redhat.com", "time": "Wed Sep 23 14:36:39 2009 -0400" }, "committer": { "name": "Trond Myklebust", "email": "Trond.Myklebust@netapp.com", "time": "Wed Sep 23 14:36:39 2009 -0400" }, "message": "NFS: Propagate \u0027fsc\u0027 mount option through automounts\n\nPropagate the NFS \u0027fsc\u0027 mount option through NFS automounts of various types.\n\nThis is now required as commit:\n\n\tcommit c02d7adf8c5429727a98bad1d039bccad4c61c50\n\tAuthor: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\n\tDate: Mon Jun 22 15:09:14 2009 -0400\n\n\tNFSv4: Replace nfs4_path_walk() with VFS path lookup in a private namespace\n\nuses VFS-driven automounting to reach all submounts barring the root, thus\npreventing fscaching from being enabled on any submount other than the root.\n\nThis patch gets around that by propagating the NFS_OPTION_FSCACHE flag across\nautomounts. If a uniquifier is supplied to a mount then this is propagated to\nall automounts of that mount too.\n\nSigned-off-by: David Howells \u003cdhowells@redhat.com\u003e\n[Trond: Fixed up the definition of nfs_fscache_get_super_cookie for the\n case of #undef CONFIG_NFS_FSCACHE]\nSigned-off-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\n" }, { "commit": "9423a08ad5773d0a7612d434700561dc8346b6d6", "tree": "3d43b5d0bd90526f64d5f3950f25e539fa14ed63", "parents": [ "61d0a8e6a8049cea246ee7ec19b042d4ff1f6ef6" ], "author": { "name": "Chuck Lever", "email": "chuck.lever@oracle.com", "time": "Wed Sep 23 14:36:38 2009 -0400" }, "committer": { "name": "Trond Myklebust", "email": "Trond.Myklebust@netapp.com", "time": "Wed Sep 23 14:36:38 2009 -0400" }, "message": "NFS: Add nfs_alloc_parsed_mount_data\n\nAllocating nfs_parsed_mount_data and setting up the defaults is nearly\nthe same for both nfs and nfs4 mounts.\n\nBoth paths seem to use nfs_validate_transport_protocol(), so setting a\ndefault value for nfs_server.protocol ought to be unnecessary.\n\nSigned-off-by: Chuck Lever \u003cchuck.lever@oracle.com\u003e\nSigned-off-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\n" }, { "commit": "8a6e5deb8a8caa810fef2c525f5dbea2cfe04a47", "tree": "92e7e049e87955770eb3cddc495e1e0119402b85", "parents": [ "7043078630bbc9eb908a56e08077c5abe7f2d311" ], "author": { "name": "Trond Myklebust", "email": "Trond.Myklebust@netapp.com", "time": "Wed Sep 23 14:36:37 2009 -0400" }, "committer": { "name": "Trond Myklebust", "email": "Trond.Myklebust@netapp.com", "time": "Wed Sep 23 14:36:37 2009 -0400" }, "message": "NFS: Get rid of the NFS_MOUNT_VER3 and NFS_MOUNT_TCP flags\n\nKeep it in the case of the legacy binary mount interface, but purge it from\nthe nfs_server structure.\n\nSigned-off-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\n" }, { "commit": "60e78d2c993e58d890596d951fff77d5965adcd6", "tree": "3d53ed7254c613ef8d8de36fdceda25bc493f4f7", "parents": [ "637d020a02cd734bf27acfc56c6d942cddd9eb80" ], "author": { "name": "Abhishek Kulkarni", "email": "adkulkar@umail.iu.edu", "time": "Wed Sep 23 13:00:27 2009 -0500" }, "committer": { "name": "Eric Van Hensbergen", "email": "ericvh@strongmad.austin.ibm.com", "time": "Wed Sep 23 13:03:46 2009 -0500" }, "message": "9p: Add fscache support to 9p\n\nThis patch adds a persistent, read-only caching facility for\n9p clients using the FS-Cache caching backend.\n\nWhen the fscache facility is enabled, each inode is associated\nwith a corresponding vcookie which is an index into the FS-Cache\nindexing tree. The FS-Cache indexing tree is indexed at 3 levels:\n- session object associated with each mount.\n- inode/vcookie\n- actual data (pages)\n\nA cache tag is chosen randomly for each session. These tags can\nbe read off /sys/fs/9p/caches and can be passed as a mount-time\nparameter to re-attach to the specified caching session.\n\nSigned-off-by: Abhishek Kulkarni \u003cadkulkar@umail.iu.edu\u003e\nSigned-off-by: Eric Van Hensbergen \u003cericvh@gmail.com\u003e\n" }, { "commit": "637d020a02cd734bf27acfc56c6d942cddd9eb80", "tree": "cff971ce538a12c1d0b315772c733bc91b1913a6", "parents": [ "7549ae3e81cc45908cbeee54a52b24f247fb0a2d" ], "author": { "name": "Abhishek Kulkarni", "email": "adkulkar@umail.iu.edu", "time": "Tue Sep 22 11:34:05 2009 -0500" }, "committer": { "name": "Eric Van Hensbergen", "email": "ericvh@strongmad.austin.ibm.com", "time": "Wed Sep 23 13:03:46 2009 -0500" }, "message": "9p: Fix the incorrect update of inode size in v9fs_file_write()\n\nWhen using the cache\u003dloose flags, the inode\u0027s size was not being\nupdated correctly on a remote write. Thus subsequent reads of\nthe whole file resulted in a truncated read. Fix it.\n\nSigned-off-by: Abhishek Kulkarni \u003cadkulkar@umail.iu.edu\u003e\nSigned-off-by: Eric Van Hensbergen \u003cericvh@gmail.com\u003e\n\n" }, { "commit": "7549ae3e81cc45908cbeee54a52b24f247fb0a2d", "tree": "cda0ffbb0f5025375ecd48e828d757283e075da8", "parents": [ "7043078630bbc9eb908a56e08077c5abe7f2d311" ], "author": { "name": "Abhishek Kulkarni", "email": "adkulkar@umail.iu.edu", "time": "Tue Sep 22 11:34:05 2009 -0500" }, "committer": { "name": "Eric Van Hensbergen", "email": "ericvh@strongmad.austin.ibm.com", "time": "Wed Sep 23 13:03:46 2009 -0500" }, "message": "9p: Use the i_size_[read, write]() macros instead of using inode-\u003ei_size directly.\n\nChange all occurrence of inode-\u003ei_size with i_size_read() or i_size_write()\nas appropriate.\n\nSigned-off-by: Abhishek Kulkarni \u003cadkulkar@umail.iu.edu\u003e\nSigned-off-by: Eric Van Hensbergen \u003cericvh@gmail.com\u003e\n\n" }, { "commit": "a7c367b95a9d8e65e0f0e7da31f700a556794efb", "tree": "5b1bb202801e29e3237381aa7aad5aa288378d5b", "parents": [ "15f964bed054821d6d940d3752508c5f96a9ffd3", "e1070211f7327a1f197d535aa886f721a241c32f" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 10:07:49 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 10:07:49 2009 -0700" }, "message": "Merge git://git.infradead.org/mtd-2.6\n\n* git://git.infradead.org/mtd-2.6: (58 commits)\n mtd: jedec_probe: add PSD4256G6V id\n mtd: OneNand support for Nomadik 8815 SoC (on NHK8815 board)\n mtd: nand: driver for Nomadik 8815 SoC (on NHK8815 board)\n m25p80: Add Spansion S25FL129P serial flashes\n jffs2: Use SLAB_HWCACHE_ALIGN for jffs2_raw_{dirent,inode} slabs\n mtd: sh_flctl: register sh_flctl using platform_driver_probe()\n mtd: nand: txx9ndfmc: transfer 512 byte at a time if possible\n mtd: nand: fix tmio_nand ecc correction\n mtd: nand: add __nand_correct_data helper function\n mtd: cfi_cmdset_0002: add 0xFF intolerance for M29W128G\n mtd: inftl: fix fold chain block number\n mtd: jedec: fix compilation problem with I28F640C3B definition\n mtd: nand: fix ECC Correction bug for SMC ordering for NDFC driver\n mtd: ofpart: Check availability of reg property instead of name property\n driver/Makefile: Initialize \"mtd\" and \"spi\" before \"net\"\n mtd: omap: adding DMA mode support in nand prefetch/post-write\n mtd: omap: add support for nand prefetch-read and post-write\n mtd: add nand support for w90p910 (v2)\n mtd: maps: add mtd-ram support to physmap_of\n mtd: pxa3xx_nand: add single-bit error corrections reporting\n ...\n" }, { "commit": "b64ada6b23d4a305fb3ca59b79dd38707fc53b69", "tree": "61bc87dc3a2549f54231261aaa544acffcd12281", "parents": [ "be90a49ca22a95f184d9f32d35b5247b44032849", "b80474b432913f73cce8db001e9fa3104f9b79ee" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 09:29:20 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 09:29:20 2009 -0700" }, "message": "Merge branch \u0027upstream-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2\n\n* \u0027upstream-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (85 commits)\n ocfs2: Use buffer IO if we are appending a file.\n ocfs2: add spinlock protection when dealing with lockres-\u003epurge.\n dlmglue.c: add missed mlog lines\n ocfs2: __ocfs2_abort() should not enable panic for local mounts\n ocfs2: Add ioctl for reflink.\n ocfs2: Enable refcount tree support.\n ocfs2: Implement ocfs2_reflink.\n ocfs2: Add preserve to reflink.\n ocfs2: Create reflinked file in orphan dir.\n ocfs2: Use proper parameter for some inode operation.\n ocfs2: Make transaction extend more efficient.\n ocfs2: Don\u0027t merge in 1st refcount ops of reflink.\n ocfs2: Modify removing xattr process for refcount.\n ocfs2: Add reflink support for xattr.\n ocfs2: Create an xattr indexed block if needed.\n ocfs2: Call refcount tree remove process properly.\n ocfs2: Attach xattr clusters to refcount tree.\n ocfs2: Abstract ocfs2 xattr tree extend rec iteration process.\n ocfs2: Abstract the creation of xattr block.\n ocfs2: Remove inode from ocfs2_xattr_bucket_get_name_value.\n ...\n" }, { "commit": "4fd8da8d62416d0dae05603ab5990a498d9aeb12", "tree": "81feb3cc66d49cfd89b0b26f067bbb52e164d0d8", "parents": [ "a6e995ad7409403c5bbd6fe8f666a280e086bb22" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Wed Sep 23 17:49:55 2009 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 09:21:05 2009 -0700" }, "message": "fs: change sys_truncate length parameter type\n\nFor this system call user space passes a signed long length parameter,\nwhile the kernel side takes an unsigned long parameter and converts it\nlater to signed long again.\n\nThis has led to bugs in compat wrappers see e.g. dd90bbd5 \"powerpc: Add\ncompat_sys_truncate\". The s390 compat wrapper for this functions is\nbroken as well since it also performs zero extension instead of sign\nextension for the length parameter.\n\nIn addition if hpa comes up with an automated way of generating\ncompat wrappers it would generate a wrong one here.\n\nSo change the length parameter from unsigned long to long.\n\nCc: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a4255e4c1c41f906488ae4d3fa328a66695cf200", "tree": "b713adf4a063c2bc08b0bd388bbf4432a0363be9", "parents": [ "9f6c1333938c5d93da8be8f29f3b5469a3c00f95" ], "author": { "name": "Heiko Carstens", "email": "heiko.carstens@de.ibm.com", "time": "Tue Sep 22 16:48:01 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:58 2009 -0700" }, "message": "ext2: fix format string compile warning (ino_t)\n\nUnlike on most other architectures ino_t is an unsigned int on s390. So\nadd an explicit cast to avoid this compile warning:\n\nfs/ext2/namei.c: In function \u0027ext2_lookup\u0027:\nfs/ext2/namei.c:73: warning: format \u0027%lu\u0027 expects type \u0027long unsigned int\u0027, but argument 4 has type \u0027ino_t\u0027\n\nSigned-off-by: 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": "9f6c1333938c5d93da8be8f29f3b5469a3c00f95", "tree": "a0fdd0e3baffa1a997eb39f780b893337921a1d4", "parents": [ "532f649f148bf70e6a5816d95fe55e6a065e8754" ], "author": { "name": "Doug Graham", "email": "dgraham@nortel.com", "time": "Tue Sep 22 16:48:00 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:57 2009 -0700" }, "message": "V3 minixfs: add missing directory type checking\n\nThere are a few places in the Minix FS code where the \"inode\" field of a\nminix_dir_entry is used without checking first to see if the dirent is\nreally a minix3_dir_entry. The inode number in a V1/V2 dirent is 16 bits,\nwhereas that in a V3 dirent is 32 bits.\n\nAccessing it as a 16 bit field when it really should be accessed as a 32\nbit field probably kinda sorta works on a little-endian machine, but leads\nto some rather odd behaviour on big-endian machines.\n\n[akpm@linux-foundation.org: coding-style fixes]\nSigned-off-by: Doug Graham \u003cdgraham@nortel.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8b2feb10c907b610bf8a739792c6b967c65445b0", "tree": "6bce57c8833f9e8eaaad8ce7b595b01b4889df5a", "parents": [ "1b83df308f69a5a3cc59be03bd7fb23e4bcebd8e" ], "author": { "name": "Bartlomiej Zolnierkiewicz", "email": "bzolnier@gmail.com", "time": "Tue Sep 22 16:45:55 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:42 2009 -0700" }, "message": "ncpfs: fix wrong check in __ncp_ioctl()\n\nWe want to check for s_inode\u0027s existence, not inode\u0027s one (inode is always\nvalid in this function).\n\nThis takes care of the following entry from Dan\u0027s list:\n\nfs/ncpfs/ioctl.c +445 __ncp_ioctl(180) warning: variable derefenced before check \u0027inode\u0027\n\nReported-by: Dan Carpenter \u003cerror27@gmail.com\u003e\nCc: Julia Lawall \u003cjulia@diku.dk\u003e\nSigned-off-by: Bartlomiej Zolnierkiewicz \u003cbzolnier@gmail.com\u003e\nCc: Petr Vandrovec \u003cvandrove@vc.cvut.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c5df59136a55fe08c21d39321679cbb008479edf", "tree": "1ee4e37aba1555f5558e0eb43d5f7093bc82af98", "parents": [ "a7e3108cca54c105f496919040f00df56767ec00" ], "author": { "name": "Roel Kluin", "email": "roel.kluin@gmail.com", "time": "Tue Sep 22 16:45:54 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:42 2009 -0700" }, "message": "ncpfs: read buffer overflow\n\nThis function uses signed integers for the unix_date and local variables -\nif a negative number is supplied and the leap-year condition is not met,\nmonth will be 0, leading to a later read of day_n[-1]\n\nSigned-off-by: Roel Kluin \u003croel.kluin@gmail.com\u003e\nCc: Petr Vandrovec \u003cVANDROVE@vc.cvut.cz\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a7e3108cca54c105f496919040f00df56767ec00", "tree": "42aaadd3648bada66632f50e9658d37bf7bb16c8", "parents": [ "0d4c36a9b6ab6b15851f60956d901a3c53574ea8" ], "author": { "name": "maximilian attems", "email": "max@stro.at", "time": "Tue Sep 22 16:45:53 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:42 2009 -0700" }, "message": "ramfs: move RAMFS_MAGIC to include/linux/magic.h\n\ninitramfs userspace likes to use this magic number.\n\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: maximilian attems \u003cmax@stro.at\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0d4c36a9b6ab6b15851f60956d901a3c53574ea8", "tree": "08ca4041ee0a3748835b34227868427b7a82467f", "parents": [ "678ad5d8aaf8925cb8465f84e1e47d9b1284666a" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:52 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:42 2009 -0700" }, "message": "/proc/kcore: update stat.st_size after memory hotplug\n\nAfter memory hotplug (or other events in future), kcore size can be\nmodified.\n\nTo update inode-\u003ei_size, we have to know inode/dentry but we can\u0027t get it\nfrom inside /proc directly. But considerinyg memory hotplug, kcore image\nis updated only when it\u0027s opened. Then, updating inode-\u003ei_size at open()\nis enough.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: WANG Cong \u003cxiyou.wangcong@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": "678ad5d8aaf8925cb8465f84e1e47d9b1284666a", "tree": "638189ae49da8da3dff9ba2f422f16a734b9388c", "parents": [ "90396f96b7da0e2305ffe0266d22b6f8221f28ba" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:42 2009 -0700" }, "message": "/proc/kcore: fix stat.st_size\n\nPresently the size of /proc/kcore which can be read by \u0027ls -l\u0027 is 0. But\nit\u0027s not the correct value.\n\nOn x86-64, ls -l shows\n ... root root 140737486266368 2009-09-17 10:29 /proc/kcore\nThen, 7FFFFFFE02000. This comes from vmalloc area\u0027s size.\n(*) This shows \"core\" size, not memory size.\n\nThis patch shows the size by updating \"size\" field in struct\nproc_dir_entry. Later, lookup routine will create inode and fill\ninode-\u003ei_size based on this value. Then, this has a problem.\n\n - Once inode is cached, inode-\u003ei_size will never be updated.\n\nThen, this patch is not memory-hotplug-aware.\n\nTo update inode-\u003ei_size, we have to know dentry or inode.\nBut there is no way to lookup them by inside kernel. Hmmm....\nNext patch will try it.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: WANG Cong \u003cxiyou.wangcong@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": "90396f96b7da0e2305ffe0266d22b6f8221f28ba", "tree": "8e609c30ef66e6f4753346043c1f31bf2855cedc", "parents": [ "81ac3ad9061dd9cd490ee92f0c5316a14d77ce18" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:50 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:42 2009 -0700" }, "message": "kcore: more fixes for init\n\nproc_kcore_init() doesn\u0027t check NULL case. fix it and remove unnecessary\ncomments.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nAcked-by: WANG Cong \u003cxiyou.wangcong@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": "81ac3ad9061dd9cd490ee92f0c5316a14d77ce18", "tree": "1787b8c307b5e70e2763c4e7c0767c2b7e108dc4", "parents": [ "26562c59fa9111ae3ea7b78045889662aac9e5ac" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:49 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:42 2009 -0700" }, "message": "kcore: register module area in generic way\n\nSome archs define MODULED_VADDR/MODULES_END which is not in VMALLOC area.\nThis is handled only in x86-64. This patch make it more generic. And we\ncan use vread/vwrite to access the area. Fix it.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@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": "26562c59fa9111ae3ea7b78045889662aac9e5ac", "tree": "fe231752dcc4db5967bd798dbd9749a516678e18", "parents": [ "3089aa1b0c07fb7c48f9829c619f50198307789d" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:49 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: register vmemmap range\n\nBenjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e pointed out that vmemmap\nrange is not included in KCORE_RAM, KCORE_VMALLOC ....\n\nThis adds KCORE_VMEMMAP if SPARSEMEM_VMEMMAP is used. By this, vmemmap\ncan be readable via /proc/kcore\n\nBecause it\u0027s not vmalloc area, vread/vwrite cannot be used. But the range\nis static against the memory layout, this patch handles vmemmap area by\nthe same scheme with physical memory.\n\nThis patch assumes SPARSEMEM_VMEMMAP range is not in VMALLOC range. It\u0027s\ncorrect now.\n\n[akpm@linux-foundation.org: fix typo]\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: Randy Dunlap \u003crandy.dunlap@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": "3089aa1b0c07fb7c48f9829c619f50198307789d", "tree": "63677c773c559458ba301bd448ecce6e007b6742", "parents": [ "908eedc6168bd92e89f90d89fa389065a36358fa" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:48 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: use registerd physmem information\n\nFor /proc/kcore, each arch registers its memory range by kclist_add().\nIn usual,\n\n\t- range of physical memory\n\t- range of vmalloc area\n\t- text, etc...\n\nare registered but \"range of physical memory\" has some troubles. It\ndoesn\u0027t updated at memory hotplug and it tend to include unnecessary\nmemory holes. Now, /proc/iomem (kernel/resource.c) includes required\nphysical memory range information and it\u0027s properly updated at memory\nhotplug. Then, it\u0027s good to avoid using its own code(duplicating\ninformation) and to rebuild kclist for physical memory based on\n/proc/iomem.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9492587cf35d370db33ef4b38375dfb35a105b61", "tree": "59daaf91e847d3c5cd6f542626da75db5814b06d", "parents": [ "a0614da88b67ffa3dbcc0d40b817e682c7c4a0ee" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: register text area in generic way\n\nSome 64bit arch has special segment for mapping kernel text. It should be\nentried to /proc/kcore in addtion to direct-linear-map, vmalloc area.\nThis patch unifies KCORE_TEXT entry scattered under x86 and ia64.\n\nI\u0027m not familiar with other archs (mips has its own even after this patch)\nbut range of [_stext ..._end) is a valid area of text and it\u0027s not in\ndirect-map area, defining CONFIG_ARCH_PROC_KCORE_TEXT is only a necessary\nthing to do.\n\nNote: I left mips as it is now.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@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": "a0614da88b67ffa3dbcc0d40b817e682c7c4a0ee", "tree": "ae4ca3a8553592af41f7c2cc1a64912d934f6baf", "parents": [ "c30bb2a25fcfde6157e6154a32c14686fb0bedbe" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:44 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: register vmalloc area in generic way\n\nFor /proc/kcore, vmalloc areas are registered per arch. But, all of them\nregisters same range of [VMALLOC_START...VMALLOC_END) This patch unifies\nthem. By this. archs which have no kclist_add() hooks can see vmalloc\narea correctly.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@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": "c30bb2a25fcfde6157e6154a32c14686fb0bedbe", "tree": "afa4811d46e5f9035a035b2c8c864bbb6c5af049", "parents": [ "2ef43ec772551e975a6ea7cf22b59c84955aadf9" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: add kclist types\n\nPresently, kclist_add() only eats start address and size as its arguments.\nConsidering to make kclist dynamically reconfigulable, it\u0027s necessary to\nknow which kclists are for System RAM and which are not.\n\nThis patch add kclist types as\n KCORE_RAM\n KCORE_VMALLOC\n KCORE_TEXT\n KCORE_OTHER\n\nThis \"type\" is used in a patch following this for detecting KCORE_RAM.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@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": "2ef43ec772551e975a6ea7cf22b59c84955aadf9", "tree": "9560c13bcc6deb3ee00a60f93730b248029e69bb", "parents": [ "d899bf7b55f503ba7d3d07ed27c3a37e270fa7db" ], "author": { "name": "KAMEZAWA Hiroyuki", "email": "kamezawa.hiroyu@jp.fujitsu.com", "time": "Tue Sep 22 16:45:41 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "kcore: use usual list for kclist\n\nThis patchset is for /proc/kcore. With this,\n\n - many per-arch hooks are removed.\n\n - /proc/kcore will know really valid physical memory area.\n\n - /proc/kcore will be aware of memory hotplug.\n\n - /proc/kcore will be architecture independent i.e.\n if an arch supports CONFIG_MMU, it can use /proc/kcore.\n (if the arch uses usual memory layout.)\n\nThis patch:\n\n/proc/kcore uses its own list handling codes. It\u0027s better to use\ngeneric list codes.\n\nNo changes in logic. just clean up.\n\nSigned-off-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Ralf Baechle \u003cralf@linux-mips.org\u003e\nCc: Benjamin Herrenschmidt \u003cbenh@kernel.crashing.org\u003e\nCc: WANG Cong \u003cxiyou.wangcong@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": "d899bf7b55f503ba7d3d07ed27c3a37e270fa7db", "tree": "32a5ee7816b2f0cb3261dcca8102b9cafe9251bd", "parents": [ "cba8aafe1e07dfc8bae5ba78be8e02883bd34d31" ], "author": { "name": "Stefani Seibold", "email": "stefani@seibold.net", "time": "Tue Sep 22 16:45:40 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:41 2009 -0700" }, "message": "procfs: provide stack information for threads\n\nA patch to give a better overview of the userland application stack usage,\nespecially for embedded linux.\n\nCurrently you are only able to dump the main process/thread stack usage\nwhich is showed in /proc/pid/status by the \"VmStk\" Value. But you get no\ninformation about the consumed stack memory of the the threads.\n\nThere is an enhancement in the /proc/\u003cpid\u003e/{task/*,}/*maps and which marks\nthe vm mapping where the thread stack pointer reside with \"[thread stack\nxxxxxxxx]\". xxxxxxxx is the maximum size of stack. This is a value\ninformation, because libpthread doesn\u0027t set the start of the stack to the\ntop of the mapped area, depending of the pthread usage.\n\nA sample output of /proc/\u003cpid\u003e/task/\u003ctid\u003e/maps looks like:\n\n08048000-08049000 r-xp 00000000 03:00 8312 /opt/z\n08049000-0804a000 rw-p 00001000 03:00 8312 /opt/z\n0804a000-0806b000 rw-p 00000000 00:00 0 [heap]\na7d12000-a7d13000 ---p 00000000 00:00 0\na7d13000-a7f13000 rw-p 00000000 00:00 0 [thread stack: 001ff4b4]\na7f13000-a7f14000 ---p 00000000 00:00 0\na7f14000-a7f36000 rw-p 00000000 00:00 0\na7f36000-a8069000 r-xp 00000000 03:00 4222 /lib/libc.so.6\na8069000-a806b000 r--p 00133000 03:00 4222 /lib/libc.so.6\na806b000-a806c000 rw-p 00135000 03:00 4222 /lib/libc.so.6\na806c000-a806f000 rw-p 00000000 00:00 0\na806f000-a8083000 r-xp 00000000 03:00 14462 /lib/libpthread.so.0\na8083000-a8084000 r--p 00013000 03:00 14462 /lib/libpthread.so.0\na8084000-a8085000 rw-p 00014000 03:00 14462 /lib/libpthread.so.0\na8085000-a8088000 rw-p 00000000 00:00 0\na8088000-a80a4000 r-xp 00000000 03:00 8317 /lib/ld-linux.so.2\na80a4000-a80a5000 r--p 0001b000 03:00 8317 /lib/ld-linux.so.2\na80a5000-a80a6000 rw-p 0001c000 03:00 8317 /lib/ld-linux.so.2\nafaf5000-afb0a000 rw-p 00000000 00:00 0 [stack]\nffffe000-fffff000 r-xp 00000000 00:00 0 [vdso]\n\nAlso there is a new entry \"stack usage\" in /proc/\u003cpid\u003e/{task/*,}/status\nwhich will you give the current stack usage in kb.\n\nA sample output of /proc/self/status looks like:\n\nName:\tcat\nState:\tR (running)\nTgid:\t507\nPid:\t507\n.\n.\n.\nCapBnd:\tfffffffffffffeff\nvoluntary_ctxt_switches:\t0\nnonvoluntary_ctxt_switches:\t0\nStack usage:\t12 kB\n\nI also fixed stack base address in /proc/\u003cpid\u003e/{task/*,}/stat to the base\naddress of the associated thread stack and not the one of the main\nprocess. This makes more sense.\n\n[akpm@linux-foundation.org: fs/proc/array.c now needs walk_page_range()]\nSigned-off-by: Stefani Seibold \u003cstefani@seibold.net\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Randy Dunlap \u003crandy.dunlap@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": "cba8aafe1e07dfc8bae5ba78be8e02883bd34d31", "tree": "473586963e635921613db5e4ae8ac339ae497a18", "parents": [ "fb92a4b068be96799da3748c11cbd69760e44d7b" ], "author": { "name": "Vincent Li", "email": "macli@brc.ubc.ca", "time": "Tue Sep 22 16:45:38 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:40 2009 -0700" }, "message": "fs/proc/base.c: fix proc_fault_inject_write() input sanity check\n\nRemove obfuscated zero-length input check and return -EINVAL instead of\n-EIO error to make the error message clear to user. Add whitespace\nstripping. No functionality changes.\n\nThe old code:\n\necho 1 \u003e /proc/pid/make-it-fail (ok)\necho 1foo \u003e /proc/pid/make-it-fail (-bash: echo: write error: Input/output error)\n\nThe new code:\n\necho 1 \u003e /proc/pid/make-it-fail (ok)\necho 1foo \u003e /proc/pid/make-it-fail (-bash: echo: write error: Invalid argument)\n\nThis patch is conservative in changes to not breaking existing\nscripts/applications.\n\nSigned-off-by: Vincent Li \u003cmacli@brc.ubc.ca\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fb92a4b068be96799da3748c11cbd69760e44d7b", "tree": "da10040b94e5a0b83de42008c369aa7c3242c333", "parents": [ "acef82b873b6899d80e639317228f2104dae79a2" ], "author": { "name": "Vincent Li", "email": "macli@brc.ubc.ca", "time": "Tue Sep 22 16:45:36 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:40 2009 -0700" }, "message": "fs/proc/task_mmu.c v1: fix clear_refs_write() input sanity check\n\nAndrew Morton pointed out similar string hacking and obfuscated check for\nzero-length input at the end of the function, David Rientjes suggested to\nuse strict_strtol to replace simple_strtol, this patch cover above\nsuggestions, add removing of leading and trailing whitespace from user\ninput. It does not change function behavious.\n\nSigned-off-by: Vincent Li \u003cmacli@brc.ubc.ca\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nCc: Amerigo Wang \u003cxiyou.wangcong@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": "acef82b873b6899d80e639317228f2104dae79a2", "tree": "840a9cdb4629f5be3f10d8f507e6785e447d8500", "parents": [ "9b4d1cbef8f41aff2b3e4ca31f566c071fe601de" ], "author": { "name": "Amerigo Wang", "email": "xiyou.wangcong@gmail.com", "time": "Tue Sep 22 16:45:35 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:40 2009 -0700" }, "message": "kcore: fix /proc/kcore\u0027s stat.st_size\n\nIn 9063c61fd5cbd (\"x86, 64-bit: Clean up user address masking\") Linus\nfixed the wrong size of /proc/kcore problem.\n\nBut its size still looks insane, since it never equals the size of\nphysical memory.\n\nSigned-off-by: WANG Cong \u003camwang@redhat.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Tao Ma \u003ctao.ma@oracle.com\u003e\nCc: \u003cmtk.manpages@gmail.com\u003e\nAcked-by: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "9b4d1cbef8f41aff2b3e4ca31f566c071fe601de", "tree": "fc64d537b5142646d917ad928e3fb1df4caf4655", "parents": [ "cff4edb591c153a779a27a3fd8e7bc1217f2f6b8" ], "author": { "name": "Oleg Nesterov", "email": "oleg@redhat.com", "time": "Tue Sep 22 16:45:34 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:40 2009 -0700" }, "message": "proc_flush_task: flush /proc/tid/task/pid when a sub-thread exits\n\nThe exiting sub-thread flushes /proc/pid only, but this doesn\u0027t buy too\nmuch: ps and friends mostly use /proc/tid/task/pid.\n\nRemove \"if (thread_group_leader())\" checks from proc_flush_task() path,\nthis means we always remove /proc/tid/task/pid dentry on exit, and this\nactually matches the comment above proc_flush_task().\n\nThe test-case:\n\n\tstatic void* tfunc(void *arg)\n\t{\n\t\tchar name[256];\n\n\t\tsprintf(name, \"/proc/%d/task/%ld/status\", getpid(), gettid());\n\t\tclose(open(name, O_RDONLY));\n\n\t\treturn NULL;\n\t}\n\n\tint main(void)\n\t{\n\t\tpthread_t t;\n\n\t\tfor (;;) {\n\t\t\tif (!pthread_create(\u0026t, NULL, \u0026tfunc, NULL))\n\t\t\t\tpthread_join(t, NULL);\n\t\t}\n\t}\n\nslabtop shows that pid/proc_inode_cache/etc grow quickly and\n\"indefinitely\" until the task is killed or shrink_slab() is called, not\ngood. And the main thread needs a lot of time to exit.\n\nThe same can happen if something like \"ps -efL\" runs continuously, while\nsome application spawns short-living threads.\n\nReported-by: \"James M. Leddy\" \u003cjleddy@redhat.com\u003e\nSigned-off-by: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: \"Eric W. Biederman\" \u003cebiederm@xmission.com\u003e\nCc: Dominic Duval \u003cdduval@redhat.com\u003e\nCc: Frank Hirtz \u003cfhirtz@redhat.com\u003e\nCc: \"Fuller, Johnray\" \u003cJohnray.Fuller@gs.com\u003e\nCc: Larry Woodman \u003clwoodman@redhat.com\u003e\nCc: Paul Batkowski \u003cpbatkowski@redhat.com\u003e\nCc: Roland McGrath \u003croland@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": "cff4edb591c153a779a27a3fd8e7bc1217f2f6b8", "tree": "664f2a20cd0ae38ef06a2f8cc59e5ffca13e5d8b", "parents": [ "27f6cb160b71b342b7a47d28a4b6c422ea74ccd1" ], "author": { "name": "Kees Cook", "email": "kees.cook@canonical.com", "time": "Tue Sep 22 16:45:32 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:40 2009 -0700" }, "message": "proc: fix reported unit for RLIMIT_CPU\n\n/proc/$pid/limits should show RLIMIT_CPU as seconds, which is the unit\nused in kernel/posix-cpu-timers.c:\n\n unsigned long psecs \u003d cputime_to_secs(ptime);\n ...\n if (psecs \u003e\u003d sig-\u003erlim[RLIMIT_CPU].rlim_max) {\n ...\n __group_send_sig_info(SIGKILL, SEND_SIG_PRIV, tsk);\n\nSigned-off-by: Kees Cook \u003ckees.cook@canonical.com\u003e\nAcked-by: WANG Cong \u003cxiyou.wangcong@gmail.com\u003e\nAcked-by: Neil Horman \u003cnhorman@tuxdriver.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1f10206cf8e945220f7220a809d8bfc15c21f9a5", "tree": "4f2c48ccf9cc52dad9610df54e301e631a351288", "parents": [ "b28cfd2c0616e1b42acc6ee3c77ef6cc3873c510" ], "author": { "name": "Jiri Pirko", "email": "jpirko@redhat.com", "time": "Tue Sep 22 16:44:10 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:30 2009 -0700" }, "message": "getrusage: fill ru_maxrss value\n\nMake -\u003eru_maxrss value in struct rusage filled accordingly to rss hiwater\nmark. This struct is filled as a parameter to getrusage syscall.\n-\u003eru_maxrss value is set to KBs which is the way it is done in BSD\nsystems. /usr/bin/time (gnu time) application converts -\u003eru_maxrss to KBs\nwhich seems to be incorrect behavior. Maintainer of this util was\nnotified by me with the patch which corrects it and cc\u0027ed.\n\nTo make this happen we extend struct signal_struct by two fields. The\nfirst one is -\u003emaxrss which we use to store rss hiwater of the task. The\nsecond one is -\u003ecmaxrss which we use to store highest rss hiwater of all\ntask childs. These values are used in k_getrusage() to actually fill\n-\u003eru_maxrss. k_getrusage() uses current rss hiwater value directly if mm\nstruct exists.\n\nNote:\nexec() clear mm-\u003ehiwater_rss, but doesn\u0027t clear sig-\u003emaxrss.\nit is intetionally behavior. *BSD getrusage have exec() inheriting.\n\ntest programs\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n\ngetrusage.c\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n #include \u003cstdio.h\u003e\n #include \u003cstdlib.h\u003e\n #include \u003cstring.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/time.h\u003e\n #include \u003csys/resource.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/wait.h\u003e\n #include \u003cunistd.h\u003e\n #include \u003csignal.h\u003e\n #include \u003csys/mman.h\u003e\n\n #include \"common.h\"\n\n #define err(str) perror(str), exit(1)\n\nint main(int argc, char** argv)\n{\n\tint status;\n\n\tprintf(\"allocate 100MB\\n\");\n\tconsume(100);\n\n\tprintf(\"testcase1: fork inherit? \\n\");\n\tprintf(\" expect: initial.self ~\u003d child.self\\n\");\n\tshow_rusage(\"initial\");\n\tif (__fork()) {\n\t\twait(\u0026status);\n\t} else {\n\t\tshow_rusage(\"fork child\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\n\tprintf(\"testcase2: fork inherit? (cont.) \\n\");\n\tprintf(\" expect: initial.children ~\u003d 100MB, but child.children \u003d 0\\n\");\n\tshow_rusage(\"initial\");\n\tif (__fork()) {\n\t\twait(\u0026status);\n\t} else {\n\t\tshow_rusage(\"child\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\n\tprintf(\"testcase3: fork + malloc \\n\");\n\tprintf(\" expect: child.self ~\u003d initial.self + 50MB\\n\");\n\tshow_rusage(\"initial\");\n\tif (__fork()) {\n\t\twait(\u0026status);\n\t} else {\n\t\tprintf(\"allocate +50MB\\n\");\n\t\tconsume(50);\n\t\tshow_rusage(\"fork child\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\n\tprintf(\"testcase4: grandchild maxrss\\n\");\n\tprintf(\" expect: post_wait.children ~\u003d 300MB\\n\");\n\tshow_rusage(\"initial\");\n\tif (__fork()) {\n\t\twait(\u0026status);\n\t\tshow_rusage(\"post_wait\");\n\t} else {\n\t\tsystem(\"./child -n 0 -g 300\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\n\tprintf(\"testcase5: zombie\\n\");\n\tprintf(\" expect: pre_wait ~\u003d initial, IOW the zombie process is not accounted.\\n\");\n\tprintf(\" post_wait ~\u003d 400MB, IOW wait() collect child\u0027s max_rss. \\n\");\n\tshow_rusage(\"initial\");\n\tif (__fork()) {\n\t\tsleep(1); /* children become zombie */\n\t\tshow_rusage(\"pre_wait\");\n\t\twait(\u0026status);\n\t\tshow_rusage(\"post_wait\");\n\t} else {\n\t\tsystem(\"./child -n 400\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\n\tprintf(\"testcase6: SIG_IGN\\n\");\n\tprintf(\" expect: initial ~\u003d after_zombie (child\u0027s 500MB alloc should be ignored).\\n\");\n\tshow_rusage(\"initial\");\n\tsignal(SIGCHLD, SIG_IGN);\n\tif (__fork()) {\n\t\tsleep(1); /* children become zombie */\n\t\tshow_rusage(\"after_zombie\");\n\t} else {\n\t\tsystem(\"./child -n 500\");\n\t\t_exit(0);\n\t}\n\tprintf(\"\\n\");\n\tsignal(SIGCHLD, SIG_DFL);\n\n\tprintf(\"testcase7: exec (without fork) \\n\");\n\tprintf(\" expect: initial ~\u003d exec \\n\");\n\tshow_rusage(\"initial\");\n\texecl(\"./child\", \"child\", \"-v\", NULL);\n\n\treturn 0;\n}\n\nchild.c\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n #include \u003csys/types.h\u003e\n #include \u003cunistd.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/wait.h\u003e\n #include \u003cstdio.h\u003e\n #include \u003cstdlib.h\u003e\n #include \u003cstring.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/time.h\u003e\n #include \u003csys/resource.h\u003e\n\n #include \"common.h\"\n\nint main(int argc, char** argv)\n{\n\tint status;\n\tint c;\n\tlong consume_size \u003d 0;\n\tlong grandchild_consume_size \u003d 0;\n\tint show \u003d 0;\n\n\twhile ((c \u003d getopt(argc, argv, \"n:g:v\")) !\u003d -1) {\n\t\tswitch (c) {\n\t\tcase \u0027n\u0027:\n\t\t\tconsume_size \u003d atol(optarg);\n\t\t\tbreak;\n\t\tcase \u0027v\u0027:\n\t\t\tshow \u003d 1;\n\t\t\tbreak;\n\t\tcase \u0027g\u0027:\n\n\t\t\tgrandchild_consume_size \u003d atol(optarg);\n\t\t\tbreak;\n\t\tdefault:\n\t\t\tbreak;\n\t\t}\n\t}\n\n\tif (show)\n\t\tshow_rusage(\"exec\");\n\n\tif (consume_size) {\n\t\tprintf(\"child alloc %ldMB\\n\", consume_size);\n\t\tconsume(consume_size);\n\t}\n\n\tif (grandchild_consume_size) {\n\t\tif (fork()) {\n\t\t\twait(\u0026status);\n\t\t} else {\n\t\t\tprintf(\"grandchild alloc %ldMB\\n\", grandchild_consume_size);\n\t\t\tconsume(grandchild_consume_size);\n\n\t\t\texit(0);\n\t\t}\n\t}\n\n\treturn 0;\n}\n\ncommon.c\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\n #include \u003cstdio.h\u003e\n #include \u003cstdlib.h\u003e\n #include \u003cstring.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/time.h\u003e\n #include \u003csys/resource.h\u003e\n #include \u003csys/types.h\u003e\n #include \u003csys/wait.h\u003e\n #include \u003cunistd.h\u003e\n #include \u003csignal.h\u003e\n #include \u003csys/mman.h\u003e\n\n #include \"common.h\"\n #define err(str) perror(str), exit(1)\n\nvoid show_rusage(char *prefix)\n{\n \tint err, err2;\n \tstruct rusage rusage_self;\n \tstruct rusage rusage_children;\n\n \tprintf(\"%s: \", prefix);\n \terr \u003d getrusage(RUSAGE_SELF, \u0026rusage_self);\n \tif (!err)\n \t\tprintf(\"self %ld \", rusage_self.ru_maxrss);\n \terr2 \u003d getrusage(RUSAGE_CHILDREN, \u0026rusage_children);\n \tif (!err2)\n \t\tprintf(\"children %ld \", rusage_children.ru_maxrss);\n\n \tprintf(\"\\n\");\n}\n\n/* Some buggy OS need this worthless CPU waste. */\nvoid make_pagefault(void)\n{\n\tvoid *addr;\n\tint size \u003d getpagesize();\n\tint i;\n\n\tfor (i\u003d0; i\u003c1000; i++) {\n\t\taddr \u003d mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);\n\t\tif (addr \u003d\u003d MAP_FAILED)\n\t\t\terr(\"make_pagefault\");\n\t\tmemset(addr, 0, size);\n\t\tmunmap(addr, size);\n\t}\n}\n\nvoid consume(int mega)\n{\n \tsize_t sz \u003d mega * 1024 * 1024;\n \tvoid *ptr;\n\n \tptr \u003d malloc(sz);\n \tmemset(ptr, 0, sz);\n\tmake_pagefault();\n}\n\npid_t __fork(void)\n{\n\tpid_t pid;\n\n\tpid \u003d fork();\n\tmake_pagefault();\n\n\treturn pid;\n}\n\ncommon.h\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nvoid show_rusage(char *prefix);\nvoid make_pagefault(void);\nvoid consume(int mega);\npid_t __fork(void);\n\nFreeBSD result (expected result)\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nallocate 100MB\ntestcase1: fork inherit?\n expect: initial.self ~\u003d child.self\ninitial: self 103492 children 0\nfork child: self 103540 children 0\n\ntestcase2: fork inherit? (cont.)\n expect: initial.children ~\u003d 100MB, but child.children \u003d 0\ninitial: self 103540 children 103540\nchild: self 103564 children 0\n\ntestcase3: fork + malloc\n expect: child.self ~\u003d initial.self + 50MB\ninitial: self 103564 children 103564\nallocate +50MB\nfork child: self 154860 children 0\n\ntestcase4: grandchild maxrss\n expect: post_wait.children ~\u003d 300MB\ninitial: self 103564 children 154860\ngrandchild alloc 300MB\npost_wait: self 103564 children 308720\n\ntestcase5: zombie\n expect: pre_wait ~\u003d initial, IOW the zombie process is not accounted.\n post_wait ~\u003d 400MB, IOW wait() collect child\u0027s max_rss.\ninitial: self 103564 children 308720\nchild alloc 400MB\npre_wait: self 103564 children 308720\npost_wait: self 103564 children 411312\n\ntestcase6: SIG_IGN\n expect: initial ~\u003d after_zombie (child\u0027s 500MB alloc should be ignored).\ninitial: self 103564 children 411312\nchild alloc 500MB\nafter_zombie: self 103624 children 411312\n\ntestcase7: exec (without fork)\n expect: initial ~\u003d exec\ninitial: self 103624 children 411312\nexec: self 103624 children 411312\n\nLinux result (actual test result)\n\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\u003d\nallocate 100MB\ntestcase1: fork inherit?\n expect: initial.self ~\u003d child.self\ninitial: self 102848 children 0\nfork child: self 102572 children 0\n\ntestcase2: fork inherit? (cont.)\n expect: initial.children ~\u003d 100MB, but child.children \u003d 0\ninitial: self 102876 children 102644\nchild: self 102572 children 0\n\ntestcase3: fork + malloc\n expect: child.self ~\u003d initial.self + 50MB\ninitial: self 102876 children 102644\nallocate +50MB\nfork child: self 153804 children 0\n\ntestcase4: grandchild maxrss\n expect: post_wait.children ~\u003d 300MB\ninitial: self 102876 children 153864\ngrandchild alloc 300MB\npost_wait: self 102876 children 307536\n\ntestcase5: zombie\n expect: pre_wait ~\u003d initial, IOW the zombie process is not accounted.\n post_wait ~\u003d 400MB, IOW wait() collect child\u0027s max_rss.\ninitial: self 102876 children 307536\nchild alloc 400MB\npre_wait: self 102876 children 307536\npost_wait: self 102876 children 410076\n\ntestcase6: SIG_IGN\n expect: initial ~\u003d after_zombie (child\u0027s 500MB alloc should be ignored).\ninitial: self 102876 children 410076\nchild alloc 500MB\nafter_zombie: self 102880 children 410076\n\ntestcase7: exec (without fork)\n expect: initial ~\u003d exec\ninitial: self 102880 children 410076\nexec: self 102880 children 410076\n\nSigned-off-by: Jiri Pirko \u003cjpirko@redhat.com\u003e\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Oleg Nesterov \u003coleg@redhat.com\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d7d7561c908afa001ab0fc8212eee94731a213a6", "tree": "116f7585bca14df575560c43c39b3e37d7e18595", "parents": [ "54447c3e8f63524fcdd40395bb2d405cab5555a7" ], "author": { "name": "Suzuki Poulose", "email": "suzuki@in.ibm.com", "time": "Tue Sep 22 16:44:02 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:30 2009 -0700" }, "message": "fix compat_sys_utimensat()\n\nCompat utimensat() returns EINVAL when the tv_nsec is one of UTIME_OMIT or\nUTIME_NOW and the tv_sec is set to non-zero. As per man pages, the tv_sec\nfield should be ignored.\n\nsys_utimensat() works fine in this case.\n\nTest case:\n\n#define _GNU_SOURCE\n#define _ATFILE_SOURCE\n#include \u003cstdio.h\u003e\n#include \u003cfcntl.h\u003e\n#include \u003cunistd.h\u003e\n#include \u003csys/stat.h\u003e\n#include \u003cstdlib.h\u003e\n\nmain(int argc, char *argv[])\n{\n\tstruct timespec ts[2];\n\tstruct timespec *tsp;\n\n\tif (argc \u003c 2) {\n\t\tfprintf(stderr, \"Usage : %s filename\\n\", argv[0]);\n\t\texit (-1);\n\t}\n\n\tts[0].tv_nsec \u003d ts[1].tv_nsec \u003d UTIME_NOW;\n\tts[0].tv_sec \u003d ts[1].tv_sec \u003d 1;\n\n\ttsp \u003d ts;\n\n\tif (utimensat(AT_FDCWD, argv[1],tsp,0) \u003d\u003d -1)\n\t\tperror(\"utimensat\");\n\telse\n\t\tfprintf(stdout, \"utimensat success\\n\");\n\treturn 0;\n}\nmjs22lp5:~ # cc -m64 utimensat-test.c -o utimensat_test64\nmjs22lp5:~ # cc -m32 utimensat-test.c -o utimensat_test32\nmjs22lp5:~ # ./utimensat_test32 /tmp/utimensat_test\nutimensat: Invalid argument\nmjs22lp5:~ # ./utimensat_test64 /tmp/utimensat_test\nutimensat success\nmjs22lp5:~ # uname -r\n2.6.31-rc8\n\nWith the patch :\n\nmjs22lp5:~ # ./utimensat_test64 /tmp/utimensat_test\nutimensat success\nmjs22lp5:~ # ./utimensat_test32 /tmp/utimensat_test\nutimensat success\nmjs22lp5:~ # uname -r\n2.6.31-rc8utimensat\n\nSigned-off-by: Suzuki K P \u003csuzuki@in.ibm.com\u003e\nCc: Ulrich Drepper \u003cdrepper@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": "945ffe54bbd56ceed62de3b908800fd7c6ffb284", "tree": "1791ac5df7967107d4413f16f94ba9aae29e8df7", "parents": [ "8a9f47ddb1d5cc3cda2d1f26f8da74e059fa7b87" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Tue Sep 22 16:43:59 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:30 2009 -0700" }, "message": "qnx4: remove write support\n\nqnx4 wrte support has never been fully implement, is broken since the dawn\nof time and hasn\u0027t been actively developed since before git history\nstarted.\n\nInstead of letting it further bitrot and complicate API transition (like\nthe new truncate code) remove it.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nCc: Anders Larsen \u003cal@alarsen.net\u003e\nCc: 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": "8a9f47ddb1d5cc3cda2d1f26f8da74e059fa7b87", "tree": "7bc28bbf668d6e20d30fa23c40f9eb16705bc0ae", "parents": [ "562787a5c32ccdf182de27793a83a9f2ee86cd77" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Tue Sep 22 16:43:58 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "ntfs: remove ntfs_file_write\n\ndo_sync_write() does the right thing for turning the aio_writev method\ninto a normal non-vectored synchronous write, no need to duplicate it in\nntfs.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nAcked-by: Anton Altaparmakov \u003caia21@cantab.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "562787a5c32ccdf182de27793a83a9f2ee86cd77", "tree": "3308afd59d3b7449afa3d6a6cd624d06ce035e88", "parents": [ "515350b6fd041396f425180589e08812dd13615f" ], "author": { "name": "Davide Libenzi", "email": "davidel@xmailserver.org", "time": "Tue Sep 22 16:43:57 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "anonfd: split interface into file creation and install\n\nSplit the anonfd interface into a bare file pointer creation one, and a\nfile pointer creation plus install one.\n\nThere are cases, like the usage of eventfds inside other kernel\ninterfaces, where the file pointer created by anonfd needs to be used\ninside the initialization of other structures.\n\nAs it is right now, as soon as anon_inode_getfd() returns, the kenrle can\nrace with userspace closing the newly installed file descriptor.\n\nThis patch, while keeping the old anon_inode_getfd(), introduces a new\nanon_inode_getfile() (whose services are reused in anon_inode_getfd())\nthat allows to split the file creation phase and the fd install one.\n\nOnce all the kernel structures are initialized, the code can call the\nproper fd_install().\n\nGregory manifested the need for something like this inside KVM.\n\nSigned-off-by: Davide Libenzi \u003cdavidel@xmailserver.org\u003e\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: James Morris \u003cjmorris@namei.org\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Gregory Haskins \u003cghaskins@novell.com\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nAcked-by: Roland Dreier \u003crolandd@cisco.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "385773e04806e8903e9ec683f5c4bd14926a86dc", "tree": "4e883e55117d7e3955800fd220f9f7a4704eb78a", "parents": [ "8c87df457cb58fe75b9b893007917cf8095660a0" ], "author": { "name": "H Hartley Sweeten", "email": "hartleys@visionengravers.com", "time": "Tue Sep 22 16:43:53 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "aio.c: move EXPORT* macros to line after function\n\nAs mentioned in Documentation/CodingStyle, move EXPORT* macro\u0027s\nto the line immediately after the closing function brace line.\n\nAlso, move the __initcall() similarly.\n\nSigned-off-by: H Hartley Sweeten \u003chsweeten@visionengravers.com\u003e\nCc: Zach Brown \u003czach.brown@oracle.com\u003e\nCc: Benjamin LaHaise \u003cbcrl@kvack.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1fe72eaa0f46a0fa4cdcd8f3f7853b6d39469784", "tree": "1bcaa65c0011cf329d5dd2a06be519460d06e434", "parents": [ "88e0fbc452ed94393bf89585c2b90edb94749b45" ], "author": { "name": "H Hartley Sweeten", "email": "hartleys@visionengravers.com", "time": "Tue Sep 22 16:43:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "fs/buffer.c: clean up EXPORT* macros\n\nAccording to Documentation/CodingStyle the EXPORT* macro should follow\nimmediately after the closing function brace line.\n\nAlso, mark_buffer_async_write_endio() and do_thaw_all() are not used\nelsewhere so they should be marked as static.\n\nIn addition, file_fsync() is actually in fs/sync.c so move the EXPORT* to\nthat file.\n\nSigned-off-by: H Hartley Sweeten \u003chsweeten@visionengravers.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "88e0fbc452ed94393bf89585c2b90edb94749b45", "tree": "374b7c8f397609da7a7b22ddee77a9c70956fcb1", "parents": [ "70867453092297be9afb2249e712a1f960ec0a09" ], "author": { "name": "Nick Piggin", "email": "npiggin@suse.de", "time": "Tue Sep 22 16:43:50 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "fs: turn iprune_mutex into rwsem\n\nWe have had a report of bad memory allocation latency during DVD-RAM (UDF)\nwriting. This is causing the user\u0027s desktop session to become unusable.\n\nJan tracked the cause of this down to UDF inode reclaim blocking:\n\ngnome-screens D ffff810006d1d598 0 20686 1\n ffff810006d1d508 0000000000000082 ffff810037db6718 0000000000000800\n ffff810006d1d488 ffffffff807e4280 ffffffff807e4280 ffff810006d1a580\n ffff8100bccbc140 ffff810006d1a8c0 0000000006d1d4e8 ffff810006d1a8c0\nCall Trace:\n [\u003cffffffff804477f3\u003e] io_schedule+0x63/0xa5\n [\u003cffffffff802c2587\u003e] sync_buffer+0x3b/0x3f\n [\u003cffffffff80447d2a\u003e] __wait_on_bit+0x47/0x79\n [\u003cffffffff80447dc6\u003e] out_of_line_wait_on_bit+0x6a/0x77\n [\u003cffffffff802c24f6\u003e] __wait_on_buffer+0x1f/0x21\n [\u003cffffffff802c442a\u003e] __bread+0x70/0x86\n [\u003cffffffff88de9ec7\u003e] :udf:udf_tread+0x38/0x3a\n [\u003cffffffff88de0fcf\u003e] :udf:udf_update_inode+0x4d/0x68c\n [\u003cffffffff88de26e1\u003e] :udf:udf_write_inode+0x1d/0x2b\n [\u003cffffffff802bcf85\u003e] __writeback_single_inode+0x1c0/0x394\n [\u003cffffffff802bd205\u003e] write_inode_now+0x7d/0xc4\n [\u003cffffffff88de2e76\u003e] :udf:udf_clear_inode+0x3d/0x53\n [\u003cffffffff802b39ae\u003e] clear_inode+0xc2/0x11b\n [\u003cffffffff802b3ab1\u003e] dispose_list+0x5b/0x102\n [\u003cffffffff802b3d35\u003e] shrink_icache_memory+0x1dd/0x213\n [\u003cffffffff8027ede3\u003e] shrink_slab+0xe3/0x158\n [\u003cffffffff8027fbab\u003e] try_to_free_pages+0x177/0x232\n [\u003cffffffff8027a578\u003e] __alloc_pages+0x1fa/0x392\n [\u003cffffffff802951fa\u003e] alloc_page_vma+0x176/0x189\n [\u003cffffffff802822d8\u003e] __do_fault+0x10c/0x417\n [\u003cffffffff80284232\u003e] handle_mm_fault+0x466/0x940\n [\u003cffffffff8044b922\u003e] do_page_fault+0x676/0xabf\n\nThis blocks with iprune_mutex held, which then blocks other reclaimers:\n\nX D ffff81009d47c400 0 17285 14831\n ffff8100844f3728 0000000000000086 0000000000000000 ffff81000000e288\n ffff81000000da00 ffffffff807e4280 ffffffff807e4280 ffff81009d47c400\n ffffffff805ff890 ffff81009d47c740 00000000844f3808 ffff81009d47c740\nCall Trace:\n [\u003cffffffff80447f8c\u003e] __mutex_lock_slowpath+0x72/0xa9\n [\u003cffffffff80447e1a\u003e] mutex_lock+0x1e/0x22\n [\u003cffffffff802b3ba1\u003e] shrink_icache_memory+0x49/0x213\n [\u003cffffffff8027ede3\u003e] shrink_slab+0xe3/0x158\n [\u003cffffffff8027fbab\u003e] try_to_free_pages+0x177/0x232\n [\u003cffffffff8027a578\u003e] __alloc_pages+0x1fa/0x392\n [\u003cffffffff8029507f\u003e] alloc_pages_current+0xd1/0xd6\n [\u003cffffffff80279ac0\u003e] __get_free_pages+0xe/0x4d\n [\u003cffffffff802ae1b7\u003e] __pollwait+0x5e/0xdf\n [\u003cffffffff8860f2b4\u003e] :nvidia:nv_kern_poll+0x2e/0x73\n [\u003cffffffff802ad949\u003e] do_select+0x308/0x506\n [\u003cffffffff802adced\u003e] core_sys_select+0x1a6/0x254\n [\u003cffffffff802ae0b7\u003e] sys_select+0xb5/0x157\n\nNow I think the main problem is having the filesystem block (and do IO) in\ninode reclaim. The problem is that this doesn\u0027t get accounted well and\npenalizes a random allocator with a big latency spike caused by work\ngenerated from elsewhere.\n\nI think the best idea would be to avoid this. By design if possible, or\nby deferring the hard work to an asynchronous context. If the latter,\nthen the fs would probably want to throttle creation of new work with\nqueue size of the deferred work, but let\u0027s not get into those details.\n\nAnyway, the other obvious thing we looked at is the iprune_mutex which is\ncausing the cascading blocking. We could turn this into an rwsem to\nimprove concurrency. It is unreasonable to totally ban all potentially\nslow or blocking operations in inode reclaim, so I think this is a cheap\nway to get a small improvement.\n\nThis doesn\u0027t solve the whole problem of course. The process doing inode\nreclaim will still take the latency hit, and concurrent processes may end\nup contending on filesystem locks. So fs developers should keep these\nproblems in mind.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Jan Kara \u003cjack@ucw.cz\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "88e9d34c727883d7d6f02cf1475b3ec98b8480c7", "tree": "475f544536d52739e0929e7727cab5124e855a06", "parents": [ "b7ed698cc9d556306a4088c238e2ea9311ea2cb3" ], "author": { "name": "James Morris", "email": "jmorris@namei.org", "time": "Tue Sep 22 16:43:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:29 2009 -0700" }, "message": "seq_file: constify seq_operations\n\nMake all seq_operations structs const, to help mitigate against\nrevectoring user-triggerable function pointers.\n\nThis is derived from the grsecurity patch, although generated from scratch\nbecause it\u0027s simpler than extracting the changes from there.\n\nSigned-off-by: James Morris \u003cjmorris@namei.org\u003e\nAcked-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nAcked-by: Casey Schaufler \u003ccasey@schaufler-ca.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "1fd7317d02ec03c6fdf072317841287933d06d24", "tree": "b7ac4d511896dbb21c1b76a27f6c4d5b4cb6c7bb", "parents": [ "af91322ef3f29ae4114e736e2a72e28b4d619cf9" ], "author": { "name": "Nick Black", "email": "dank@qemfd.net", "time": "Tue Sep 22 16:43:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:28 2009 -0700" }, "message": "Move magic numbers into magic.h\n\nMove various magic-number definitions into magic.h.\n\nSigned-off-by: Nick Black \u003cdank@qemfd.net\u003e\nAcked-by: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Casey Schaufler \u003ccasey@schaufler-ca.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "5ae87e79ecb5baa65e9cf48be874098fafad0668", "tree": "47dceb61ead03159e93ca998a6f88777474db4f3", "parents": [ "f58f2fa9286db0ce9124ca9986d56aa5420b7f59" ], "author": { "name": "Guillaume Knispel", "email": "gknispel@proformatique.com", "time": "Tue Sep 22 16:43:30 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:27 2009 -0700" }, "message": "poll/select: avoid arithmetic overflow in __estimate_accuracy()\n\n__estimate_accuracy() was prone to integer overflow, for example if *tv \u003d\u003d\n{2147, 483648000} on a 32 bit computer (or even for delays as small as\n{429, 500000000} if the task is niced).\n\nBecause the result was already forced between 0 and 100ms, the effect of\nthe overflow was not too problematic, but the use of the hrtimer range\nfeature was not optimal in overflow cases.\n\nThis patch ensures that there can not be an integer overflow in this\nfunction.\n\nSigned-off-by: Guillaume Knispel \u003cgknispel@proformatique.com\u003e\nCc: Alexander Viro \u003cviro@zeniv.linux.org.uk\u003e\nCc: Arjan van de Ven \u003carjan@infradead.org\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: Heiko Carstens \u003cheiko.carstens@de.ibm.com\u003e\nCc: Tejun Heo \u003ctj@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": "ca976c53de0c33160083d36f70bd18d7970f6969", "tree": "efd3abdc12b0c636a4dba94dbcab4bafc78423b8", "parents": [ "fa081b00a80ef3f4575c99af6e97d29e1628cf51" ], "author": { "name": "Roel Kluin", "email": "roel.kluin@gmail.com", "time": "Tue Sep 22 16:43:28 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 23 07:39:27 2009 -0700" }, "message": "smbfs: read buffer overflow\n\nThis function uses signed integers for the unix_date and local variables -\nif a negative number is supplied and the leap-year condition is not met,\nmonth will be 0, leading to a read of day_n[-1]\n\nSigned-off-by: Roel Kluin \u003croel.kluin@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": "b80474b432913f73cce8db001e9fa3104f9b79ee", "tree": "ad39c36ce3006167d02ca176eb140012c6530a06", "parents": [ "83e32d9044a4510fffdf65c2691a25c0ba84e259" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Thu Sep 10 15:28:47 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Wed Sep 23 01:54:49 2009 -0700" }, "message": "ocfs2: Use buffer IO if we are appending a file.\n\nIn ocfs2_file_aio_write, we will prevent direct io if\nwe find that we are appending(changing i_size) and call\ngeneric_file_aio_write_nolock. But actually O_DIRECT flag\nis there and this function will call generic_file_direct_write\neventually which will update i_size and leave di-\u003ei_size\nalone. The bug is\nhttp://oss.oracle.com/bugzilla/show_bug.cgi?id\u003d1173.\n\nSo this patch let ocfs2_direct_IO returns 0 directly if we\nare appending so that buffered write will be called and\ndi-\u003ei_size get updated successfully. And this is also\nwhat we want in ocfs2_file_aio_write.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\nSigned-off-by: Joel Becker \u003cjoel.becker@oracle.com\u003e\n" }, { "commit": "83e32d9044a4510fffdf65c2691a25c0ba84e259", "tree": "69bf3d8c663e51e7527d67341b3bb8d95b33e008", "parents": [ "d92bc5127b27f315ef0ef2c1e1829fd6a5cba54a" ], "author": { "name": "Wengang Wang", "email": "wen.gang.wang@oracle.com", "time": "Thu Sep 03 15:56:33 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Wed Sep 23 01:54:48 2009 -0700" }, "message": "ocfs2: add spinlock protection when dealing with lockres-\u003epurge.\n\nwhen we check/modify lockres-\u003epurge, we should with the protection of lockres-\u003espinlock.\nin dlm_purge_lockres(), the checking/modifying is not with the protectin.\nthis patch fixes it.\n\nSigned-off-by: Wengang Wang \u003cwen.gang.wang@oracle.com\u003e\nSigned-off-by: Joel Becker \u003cjoel.becker@oracle.com\u003e\n" }, { "commit": "d92bc5127b27f315ef0ef2c1e1829fd6a5cba54a", "tree": "cf6206f96ba57f53e0b187b88537042662183749", "parents": [ "a2f2ddbf2bafdbc7e4f3bbf09439b42c8fee2747" ], "author": { "name": "Coly Li", "email": "coly.li@suse.de", "time": "Fri Aug 28 19:03:18 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Wed Sep 23 01:54:47 2009 -0700" }, "message": "dlmglue.c: add missed mlog lines\n\nThis patch adds the missed mlog_exit() and mlog_exit_void() lines when routines\nreturn.\n\nSigned-off-by: Coly Li \u003ccoly.li@suse.de\u003e\nAcked-by: Mark Fasheh \u003cmfasheh@suse.com\u003e\nSigned-off-by: Joel Becker \u003cjoel.becker@oracle.com\u003e\n" }, { "commit": "a2f2ddbf2bafdbc7e4f3bbf09439b42c8fee2747", "tree": "0b027ad2957530c457b2589d96c361232eabe740", "parents": [ "bd50873dc725a9fa72592ecc986c58805e823051" ], "author": { "name": "Sunil Mushran", "email": "sunil.mushran@oracle.com", "time": "Wed Aug 19 15:16:01 2009 -0700" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Wed Sep 23 01:54:46 2009 -0700" }, "message": "ocfs2: __ocfs2_abort() should not enable panic for local mounts\n\nIn a clustered setup, we have to panic the box on journal abort. This is\nbecause we don\u0027t have the facility to go hard readonly. With hard ro, another\nnode would detect node failure and initiate recovery.\n\nHaving said that, we shouldn\u0027t force panic if the volume is mounted locally.\nThis patch defers the handling to the mount option, errors.\n\nSigned-off-by: Sunil Mushran \u003csunil.mushran@oracle.com\u003e\nSigned-off-by: Joel Becker \u003cjoel.becker@oracle.com\u003e\n" }, { "commit": "bd50873dc725a9fa72592ecc986c58805e823051", "tree": "8d2d4d514f73b6425bf0bf5bd1806949b84a2489", "parents": [ "64871b8d62570fabec3b0959d494f8e0b87f5c4b" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Mon Sep 21 11:25:14 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:51 2009 -0700" }, "message": "ocfs2: Add ioctl for reflink.\n\nThe ioctl will take 3 parameters: old_path, new_path and\npreserve and call vfs_reflink. It is useful when we backport\nreflink features to old kernels.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "64871b8d62570fabec3b0959d494f8e0b87f5c4b", "tree": "7b54c2cd44e81e33a799055cd0bac0ae51e9a4ef", "parents": [ "09bf27a000209e9e8c9c048b4c50f6bb0dd857bb" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:48:02 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:50 2009 -0700" }, "message": "ocfs2: Enable refcount tree support.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "09bf27a000209e9e8c9c048b4c50f6bb0dd857bb", "tree": "605522b8c41d70d26705dfe4cc9149b6a10724a6", "parents": [ "0fe9b66c65f3ff227da45381afe7612f91e32740" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Mon Sep 21 10:38:17 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:49 2009 -0700" }, "message": "ocfs2: Implement ocfs2_reflink.\n\nImplement ocfs2_reflink.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "0fe9b66c65f3ff227da45381afe7612f91e32740", "tree": "14d95c15065419825adb4f0f0a26a5416a64259e", "parents": [ "bc13d347574fc0a8a666bc0f4cc2b635d202e372" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:47:56 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:49 2009 -0700" }, "message": "ocfs2: Add preserve to reflink.\n\nreflink has 2 options for the destination file:\n1. snapshot: reflink will attempt to preserve ownership, permissions,\n and all other security state in order to create a full snapshot.\n2. new file: it will acquire the data extent sharing but will see the\n file\u0027s security state and attributes initialized as a new file.\n\nSo add the option to ocfs2.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "bc13d347574fc0a8a666bc0f4cc2b635d202e372", "tree": "47eb9a764d3689ddd860d96f6cd80cf26a84bcc2", "parents": [ "19bd341f6a6c6b314bcac55bbd906bfd3603fe9e" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:44:14 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:48 2009 -0700" }, "message": "ocfs2: Create reflinked file in orphan dir.\n\nreflink is a very complicated process, so it can\u0027t be integrated\ninto one transaction. So if the system panic in the operation, we\nmay leave a unfinished inode in the destication directory.\n\nSo we will try to create an inode in orphan_dir first, reflink it\nto the src file and then move it to the destication file in the end.\nIn that way we won\u0027t be afraid of any corruption during the reflink.\n\nThis patch adds 2 functions for orphan_dir operation:\n1. Create a new inode in orphand dir.\n2. Move an inode to a target dir.\n\nNote:\nfsck.ocfs2 should work for us to remove the unfinished file in the\norphan_dir.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n\n" }, { "commit": "19bd341f6a6c6b314bcac55bbd906bfd3603fe9e", "tree": "2eefd82e6ae2495b4d3288dc452763eea8d2fb37", "parents": [ "c18b812d127a971901180188b918a7cd98ccd4d6" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:44:10 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:47 2009 -0700" }, "message": "ocfs2: Use proper parameter for some inode operation.\n\nIn order to make the original function more suitable for reflink,\nwe modify the following inode operations. Both are tiny.\n\n1. ocfs2_mknod_locked only use dentry for mlog, so move it to\n the caller so that reflink can use it without dentry.\n2. ocfs2_prepare_orphan_dir only want inode to get its ip_blkno.\n So use ip_blkno instead.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "c18b812d127a971901180188b918a7cd98ccd4d6", "tree": "3f2d0a7b1fada7aaade612d14dcaa7229a4e06c9", "parents": [ "7540c1a77b26bc2f9d86a0bfbe6597b05ec5f93d" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:44:07 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:46 2009 -0700" }, "message": "ocfs2: Make transaction extend more efficient.\n\nIn ocfs2_extend_rotate_transaction, op_credits is the orignal\ncredits in the handle and we only want to extend the credits\nfor the rotation, but the old solution always double it. It\nis harmless for some minor operations, but for actions like\nreflink we may rotate tree many times and cause the credits\nincrease dramatically. So this patch try to only increase\nthe desired credits.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "7540c1a77b26bc2f9d86a0bfbe6597b05ec5f93d", "tree": "4b0414f74d265cfe496d5e5f39c6c6d240f6e713", "parents": [ "ce9c5a54c0f06b0efb4db8720a0616cc6aa0e5b2" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:44:03 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:46 2009 -0700" }, "message": "ocfs2: Don\u0027t merge in 1st refcount ops of reflink.\n\nActually the whole reflink will touch refcount tree 2 times:\n1. It will add the clusters in the extent record to the tree if it\n isn\u0027t refcounted before.\n2. It will add 1 refcount to these clusters when it add these\n extent records to the tree.\n\nSo actually we shouldn\u0027t do merge in the 1st operation since the 2nd\none will soon be called and we may have to split it again. Do a merge\nfirst and split soon is a waste of time. So we only merge in the 2nd\nround. This is done by adding a new internal __ocfs2_increase_refcount\nand call it with \"not-merge\" for 1st refcount operation in reflink.\n\nThis also has a side-effect that we don\u0027t need to worry too much about\nthe metadata allocation in the 2nd round since it will only merge and\nno split will happen for those records.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "ce9c5a54c0f06b0efb4db8720a0616cc6aa0e5b2", "tree": "617a8f4eb0d30c71691f5e786417a32c1c95cecb", "parents": [ "2999d12f4d5529b282ce201b21444590c3f9f723" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:43:59 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:45 2009 -0700" }, "message": "ocfs2: Modify removing xattr process for refcount.\n\nThe old xattr value remove is quite simple, it just erase the\ntree and free the clusters. But as we have added refcount support,\nThe process is a little complicated.\n\nWe have to lock the refcount tree at the beginning, what\u0027s more,\nwe may split the refcount tree in some cases, so meta/credits are\nneeded.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "2999d12f4d5529b282ce201b21444590c3f9f723", "tree": "9500f897753a59cf47e66af2cb7fd56c05ec8c1c", "parents": [ "a7fe7a3a1ab5dac8d81e531c060f51e12010133b" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:43:55 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:45 2009 -0700" }, "message": "ocfs2: Add reflink support for xattr.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "a7fe7a3a1ab5dac8d81e531c060f51e12010133b", "tree": "9eb5a21cc29e6913d3f591cdab37f59fbfa562d2", "parents": [ "8b2c0dba5159570af5721d40490f6c529d721500" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:43:52 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:44 2009 -0700" }, "message": "ocfs2: Create an xattr indexed block if needed.\n\nWith reflink, there is a need that we create a new xattr indexed\nblock from the very beginning. So add a new parameter for\nocfs2_create_xattr_block.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "8b2c0dba5159570af5721d40490f6c529d721500", "tree": "faca76fab3c9a65ba8e7be3aa93d02e4ff53f0cf", "parents": [ "0129241e2b3b90ff83a8c774353e5612d84bd493" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:43:49 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:44 2009 -0700" }, "message": "ocfs2: Call refcount tree remove process properly.\n\nNow with xattr refcount support, we need to check whether\nwe have xattr refcounted before we remove the refcount tree.\n\nNow the mechanism is:\n1) Check whether i_clusters \u003d\u003d 0, if no, exit.\n2) check whether we have i_xattr_loc in dinode. if yes, exit.\n2) Check whether we have inline xattr stored outside, if yes, exit.\n4) Remove the tree.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "0129241e2b3b90ff83a8c774353e5612d84bd493", "tree": "eec03f874cbdbc4c9eab4900f2de89fd1747a5ee", "parents": [ "47bca4950bc40fb54e9d41cbbc8b06cd653d2ae2" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Mon Sep 21 13:04:19 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:43 2009 -0700" }, "message": "ocfs2: Attach xattr clusters to refcount tree.\n\nIn ocfs2, when xattr\u0027s value is larger than OCFS2_XATTR_INLINE_SIZE,\nit will be kept outside of the blocks we store xattr entry. And they\nare stored in a b-tree also. So this patch try to attach all these\nclusters to refcount tree also.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "47bca4950bc40fb54e9d41cbbc8b06cd653d2ae2", "tree": "17d36e5b9f330cda55b6ee8ff9a0293bd080040e", "parents": [ "5aea1f0ef4024ba28213c10181e1b16ec678c82d" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:43:42 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:43 2009 -0700" }, "message": "ocfs2: Abstract ocfs2 xattr tree extend rec iteration process.\n\nCurrently we have ocfs2_iterate_xattr_buckets which can receive\na para and a callback to iterate a series of bucket. It is good.\nBut actually the 2 callers ocfs2_xattr_tree_list_index_block and\nocfs2_delete_xattr_index_block are almost the same. The only\ndifference is that the latter need to handle the extent record\nalso. So add a new function named ocfs2_iterate_xattr_index_block.\nIt can be given func callback which are used for exten record.\nSo now we only have one iteration function for the xattr index\nblock. Ane what\u0027s more, it is useful for our future reflink\noperations.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "5aea1f0ef4024ba28213c10181e1b16ec678c82d", "tree": "ca28a8214cf9a8761fbac6b5e8aef84aa22fff54", "parents": [ "fd68a894fc9641f816d9cffa58e853ba91cbc1a1" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:43:24 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:42 2009 -0700" }, "message": "ocfs2: Abstract the creation of xattr block.\n\nIn xattr reflink, we also need to create xattr block, so\nabstract the process out.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "fd68a894fc9641f816d9cffa58e853ba91cbc1a1", "tree": "3af84546b32c54aba009f23681fd30c28df7240b", "parents": [ "492a8a33e1cb966fa0b5756c5fc11d30c8f8848e" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:43:21 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:41 2009 -0700" }, "message": "ocfs2: Remove inode from ocfs2_xattr_bucket_get_name_value.\n\nIn ocfs2_xattr_bucket_get_name_value, actually we only use\nsuper_block. So use it.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "492a8a33e1cb966fa0b5756c5fc11d30c8f8848e", "tree": "eacf691b07c8fa3e81c11ff1d6b8773c2dbb9e77", "parents": [ "913580b4cd445c4fb25d7cf167911a8cf6bdb1eb" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:43:17 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:41 2009 -0700" }, "message": "ocfs2: Add CoW support for xattr.\n\nIn order to make 2 transcation(xattr and cow) independent with each other,\nwe CoW the whole xattr out in case we are setting them.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "913580b4cd445c4fb25d7cf167911a8cf6bdb1eb", "tree": "24ad6cb14d27f101863035029eb8cea0ee8ed361", "parents": [ "1061f9c1c9f81ed88b5d268a95d8e3ace80da63a" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Mon Aug 24 14:31:03 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:40 2009 -0700" }, "message": "ocfs2: Abstract duplicate clusters process in CoW.\n\nWe currently use pagecache to duplicate clusters in CoW,\nbut it isn\u0027t suitable for xattr case. So abstract it out\nso that the caller can decide which method it use.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "1061f9c1c9f81ed88b5d268a95d8e3ace80da63a", "tree": "de43d1c1122ade36f079f0381712bc0f06556ac5", "parents": [ "a9063ab9a3827483007124bdb6f9877f0ab4c3f5" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:41:57 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:39 2009 -0700" }, "message": "ocfs2: Return extent flags for xattr value tree.\n\nWith the new refcount tree, xattr value can also be refcounted\namong multiple files. So return the appropriate extent flags\nso that CoW can used it later.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "a9063ab9a3827483007124bdb6f9877f0ab4c3f5", "tree": "78afcc391daf9d66df5bf34b207aa8e9c53ca7d6", "parents": [ "110a045aca62f6f564e3b68f89af2a3a5a6ecff2" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:40:59 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:39 2009 -0700" }, "message": "ocfs2: handle file attributes issue for reflink.\n\nA reflink creates a snapshot of a file, that means the attributes\nmust be identical except for three exceptions - nlink, ino, and ctime.\n\nAs for time changes, Here is a brief description:\n\n1. Source file:\n 1) atime: Ignore. Let the lazy atime code handle that.\n 2) mtime: don\u0027t touch.\n 3) ctime: If we change the tree (adding REFCOUNTED to at least one\n extent), update it.\n2. Destination file:\n 1) atime: ignore.\n 2) mtime: we want it to appear identical to the source.\n 3) ctime: update.\n\nThe idea here is that an ls -l will show the same time for the\nsrc and target - it shows mtime. Backup software like rsync and tar\nwill treat the new file correctly too.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "110a045aca62f6f564e3b68f89af2a3a5a6ecff2", "tree": "d7c2df9a59e527eb14add4daf1c0107e486715f4", "parents": [ "37f8a2bfaa8364dd3644cccee8824bb8f5e409a5" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Sat Aug 22 23:54:27 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:38 2009 -0700" }, "message": "ocfs2: Add normal functions for reflink a normal file\u0027s extents.\n\n2 major functions are added in this patch.\n\nocfs2_attach_refcount_tree will create a new refcount tree to the\nold file if it doesn\u0027t have one and insert all the extent records\nto the tree if they are not refcounted.\n\nocfs2_create_reflink_node will:\n1. set the refcount tree to the new file.\n2. call ocfs2_duplicate_extent_list which will iterate all the\n extents for the old file, insert it to the new file and increase\n the corresponding referennce count.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "37f8a2bfaa8364dd3644cccee8824bb8f5e409a5", "tree": "ab3083179c621c3e8d0be3980aaed96528f90599", "parents": [ "293b2f70b4a16a1ca91efd28ef3d6634262c6887" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Wed Aug 26 09:47:28 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:38 2009 -0700" }, "message": "ocfs2: CoW a reflinked cluster when it is truncated.\n\nWhen we truncate a file to a specific size which resides in a reflinked\ncluster, we need to CoW it since ocfs2_zero_range_for_truncate will\nzero the space after the size(just another type of write).\n\nSo we add a \"max_cpos\" in ocfs2_refcount_cow so that it will stop when\nit hit the max cluster offset.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "293b2f70b4a16a1ca91efd28ef3d6634262c6887", "tree": "4a85078faae7c529fa313d4964e0d6ad0905a612", "parents": [ "6ae23c5555176c5b23480c9c578ff27437085ba5" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 25 08:02:48 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:37 2009 -0700" }, "message": "ocfs2: Integrate CoW in file write.\n\nWhen we use mmap, we CoW the refcountd clusters in\nocfs2_write_begin_nolock. While for normal file\nio(including directio), we do CoW in\nocfs2_prepare_inode_for_write.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "6ae23c5555176c5b23480c9c578ff27437085ba5", "tree": "4afb1c33e850fa751c6136d65a041f70fe146fe8", "parents": [ "6f70fa519976a379d72781d927cf8e5f5b05ec86" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:30:55 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:36 2009 -0700" }, "message": "ocfs2: CoW refcount tree improvement.\n\nDuring CoW, if the old extent record is refcounted, we allocate\nsom new clusters and do CoW. Actually we can have some improvement\nhere. If the old extent has refcount\u003d1, that means now it is only\nused by this file. So we don\u0027t need to allocate new clusters, just\nremove the refcounted flag and it is OK. We also have to remove\nit from the refcount tree while not deleting it.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "6f70fa519976a379d72781d927cf8e5f5b05ec86", "tree": "563cdeb116f2016c3c4b7a627a51f0a85eec1566", "parents": [ "bcbbb24a6a5c5b3e7b8e5284e0bfa23f45c32377" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 25 08:05:12 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:36 2009 -0700" }, "message": "ocfs2: Add CoW support.\n\nThis patch try CoW support for a refcounted record.\n\nthe whole process will be:\n1. Calculate how many clusters we need to CoW and where we start.\n Extents that are not completely encompassed by the write will\n be broken on 1MB boundaries.\n2. Do CoW for the clusters with the help of page cache.\n3. Change the b-tree structure with the new allocated clusters.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "bcbbb24a6a5c5b3e7b8e5284e0bfa23f45c32377", "tree": "e45a6cfd75cd8005fdf280c2f5f57c09186249dd", "parents": [ "1aa75fea64bc26bda9be9b1b20ae253d7a481877" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:29:12 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:35 2009 -0700" }, "message": "ocfs2: Decrement refcount when truncating refcounted extents.\n\nAdd \u0027Decrement refcount for delete\u0027 in to the normal truncate\nprocess. So for a refcounted extent record, call refcount rec\ndecrementation instead of cluster free.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "1aa75fea64bc26bda9be9b1b20ae253d7a481877", "tree": "5da0c235f1323b9771e44a18a5452c83c0969547", "parents": [ "1823cb0b9fe5e6d48017ee3f92428f69c0235d87" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:28:39 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:34 2009 -0700" }, "message": "ocfs2: Add functions for extents refcounted.\n\nAdd function ocfs2_mark_extent_refcounted which can mark\nan extent refcounted.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "1823cb0b9fe5e6d48017ee3f92428f69c0235d87", "tree": "461e5d6cc255c400acac69dd968fae935a9c073f", "parents": [ "e73a819db9c2d6c4065b7cab7374709b6939e8f1" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:24:49 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:33 2009 -0700" }, "message": "ocfs2: Add support of decrementing refcount for delete.\n\n Given a physical cpos and length, decrement the refcount\nin the tree. If the refcount for any portion of the extent goes\nto zero, that portion is queued for freeing.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "e73a819db9c2d6c4065b7cab7374709b6939e8f1", "tree": "40968bc5b37d3b55e382267683c9612d4697f036", "parents": [ "e2e9f6082b5ff099978774d5c0148e062344c2f9" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 11 14:33:14 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:33 2009 -0700" }, "message": "ocfs2: Add support for incrementing refcount in the tree.\n\n Given a physical cpos and length, increment the refcount\nin the tree. If the extent has not been seen before, a refcount\nrecord is created for it. Refcount records may be merged or\nsplit by this operation.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "e2e9f6082b5ff099978774d5c0148e062344c2f9", "tree": "1da7dc993c77ca08cb83aba8f21e0da9fd055044", "parents": [ "fe924415957e60471536762172d127e85519ef78" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:22:34 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:32 2009 -0700" }, "message": "ocfs2: move tree path functions to alloc.h.\n\nNow fs/ocfs2/alloc.c has more than 7000 lines. It contains our\nbasic b-tree operation. Although we have already make our b-tree\noperation generic, the basic structrue ocfs2_path which is used\nto iterate one b-tree branch is still static and limited to only\nused in alloc.c. As refcount tree need them and I don\u0027t want to\nadd any more b-tree unrelated code to alloc.c, export them out.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e \n" }, { "commit": "fe924415957e60471536762172d127e85519ef78", "tree": "c26f47180bbc14fda78dae0cb3d40287d6dafd18", "parents": [ "555936bfcb1af26c6919d6cedb83710bb03d4322" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:22:25 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:31 2009 -0700" }, "message": "ocfs2: Add refcount b-tree as a new extent tree.\n\nAdd refcount b-tree as a new extent tree so that it can\nuse the b-tree to store and maniuplate ocfs2_refcount_rec.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "555936bfcb1af26c6919d6cedb83710bb03d4322", "tree": "8d63ff0c4a0ff9587cb84dcd8ca9333c94d34ff8", "parents": [ "853a3a1439b18d5a70ada2cb3fcd468e70b7d095" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:22:21 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:31 2009 -0700" }, "message": "ocfs2: Abstract extent split process.\n\nocfs2_mark_extent_written actually does the following things:\n1. check the parameters.\n2. initialize the left_path and split_rec.\n3. call __ocfs2_mark_extent_written. it will do:\n 1) check the flags of unwritten\n 2) do the real split work.\nThe whole process is packed tightly somehow. So this patch\nwill abstract 2 different functions so that future b-tree\noperation can work with it.\n\n1. __ocfs2_split_extent will accept path and split_rec and do\n the real split work.\n2. ocfs2_change_extent_flag will accept a new flag and initialize\n path and split_rec.\n\nSo now ocfs2_mark_extent_written will do:\n1. check the parameters.\n2. call ocfs2_change_extent_flag.\n 1) initalize the left_path and split_rec.\n 2) check whether the new flags conflict with the old one.\n 3) call __ocfs2_split_extent to do the split.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "853a3a1439b18d5a70ada2cb3fcd468e70b7d095", "tree": "96f4a2f3ca4380a6d0feb6f1b8af038bb62946c5", "parents": [ "8bf396de984e68491569b49770e4fd7aca40ba65" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:22:18 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:30 2009 -0700" }, "message": "ocfs2: Wrap ocfs2_extent_contig in ocfs2_extent_tree.\n\nAdd a new operation eo_ocfs2_extent_contig int the extent tree\u0027s\noperations vector. So that with the new refcount tree, We want\nthis so that refcount trees can always return CONTIG_NONE and\nprevent extent merging.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n\n" }, { "commit": "8bf396de984e68491569b49770e4fd7aca40ba65", "tree": "1c755fa7af20e14722378df729201e6f8497fadb", "parents": [ "374a263e790c4de85844283c098810a92985f623" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Mon Aug 24 11:12:02 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:30 2009 -0700" }, "message": "ocfs2: Basic tree root operation.\n\nAdd basic refcount tree root operation.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "374a263e790c4de85844283c098810a92985f623", "tree": "a72b1f072b973723ea1cf7def27608717cf1c033", "parents": [ "c732eb16bf07f9bfb7fa72b6868462471273bdbd" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Mon Aug 24 11:13:37 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:29 2009 -0700" }, "message": "ocfs2: Add refcount tree lock mechanism.\n\nImplement locking around struct ocfs2_refcount_tree. This protects\nall read/write operations on refcount trees. ocfs2_refcount_tree\nhas its own lock and its own caching_info, protecting buffers among\nmultiple nodes.\n\nUser must call ocfs2_lock_refcount_tree before his operation on\nthe tree and unlock it after that.\n\nocfs2_refcount_trees are referenced by the block number of the\nrefcount tree root block, So we create an rb-tree on the ocfs2_super\nto look them up.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n\n" }, { "commit": "c732eb16bf07f9bfb7fa72b6868462471273bdbd", "tree": "8e6cfce9d9d5ca1d5dcd1d52ca1e291a3928c6fe", "parents": [ "8dec98edfe9684ce00b580a09dde3dcd21ee785b" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:21:00 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:28 2009 -0700" }, "message": "ocfs2: Add caching info for refcount tree.\n\nrefcount tree should use its own caching info so that when\nwe downconvert the refcount tree lock, we can drop all the\ncached buffer head.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "8dec98edfe9684ce00b580a09dde3dcd21ee785b", "tree": "3002e990974163a09ea6d427d7cf775aaca7acca", "parents": [ "a433848132d8cdfb8173745b922ddb919de11527" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:19:58 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:28 2009 -0700" }, "message": "ocfs2: Add new refcount tree lock resource in dlmglue.\n\nrefcount tree lock resource is used to protect refcount\ntree read/write among multiple nodes.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "a433848132d8cdfb8173745b922ddb919de11527", "tree": "b12db738743e4eb4a7222996300fa468b1dc39e5", "parents": [ "f2c870e3b12e38da6d9b5b17c4c8ae56a0ed68e4" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:19:29 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:27 2009 -0700" }, "message": "ocfs2: Abstract caching info checkpoint.\n\nIn meta downconvert, we need to checkpoint the metadata in an inode.\nFor refcount tree, we also need it. So abstract the process out.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e \n" }, { "commit": "f2c870e3b12e38da6d9b5b17c4c8ae56a0ed68e4", "tree": "23aabcc02bc4437c975626012248a7fad3a307de", "parents": [ "93c97087a646429f4dc0d73298d64674ddd5cde8" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:19:26 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:26 2009 -0700" }, "message": "ocfs2: Add ocfs2_read_refcount_block.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "93c97087a646429f4dc0d73298d64674ddd5cde8", "tree": "d6c58b32b031a0e23f86e1574e688585fcc26455", "parents": [ "721f69c404c51a5d1dc93fddb48ee936e8e23770" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:19:20 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:26 2009 -0700" }, "message": "ocfs2: Add metaecc for ocfs2_refcount_block.\n\nAdd metaecc and journal trigger for ocfs2_refcount_block.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "721f69c404c51a5d1dc93fddb48ee936e8e23770", "tree": "10aed3ec236cb7cb677f380d08710c3786d22dcd", "parents": [ "5e404e9ed1b05cafb044bd46792e50197df805ed" ], "author": { "name": "Tao Ma", "email": "tao.ma@oracle.com", "time": "Tue Aug 18 11:17:49 2009 +0800" }, "committer": { "name": "Joel Becker", "email": "joel.becker@oracle.com", "time": "Tue Sep 22 20:09:25 2009 -0700" }, "message": "ocfs2: Define refcount tree structure.\n\nSigned-off-by: Tao Ma \u003ctao.ma@oracle.com\u003e\n" }, { "commit": "a87e84b5cdfacf11af4e8a85c4bca9793658536f", "tree": "f8e3cb2d339d8ed0e987d55f725e501730cdc81d", "parents": [ "342ff1a1b558ebbdb8cbd55ab6a63eca8b2473ca", "3c394ddaa7ea4205f933fd9b481166b2669368a9" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:54:33 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:54:33 2009 -0700" }, "message": "Merge branch \u0027for-2.6.32\u0027 of git://linux-nfs.org/~bfields/linux\n\n* \u0027for-2.6.32\u0027 of git://linux-nfs.org/~bfields/linux: (68 commits)\n nfsd4: nfsv4 clients should cross mountpoints\n nfsd: revise 4.1 status documentation\n sunrpc/cache: avoid variable over-loading in cache_defer_req\n sunrpc/cache: use list_del_init for the list_head entries in cache_deferred_req\n nfsd: return success for non-NFS4 nfs4_state_start\n nfsd41: Refactor create_client()\n nfsd41: modify nfsd4.1 backchannel to use new xprt class\n nfsd41: Backchannel: Implement cb_recall over NFSv4.1\n nfsd41: Backchannel: cb_sequence callback\n nfsd41: Backchannel: Setup sequence information\n nfsd41: Backchannel: Server backchannel RPC wait queue\n nfsd41: Backchannel: Add sequence arguments to callback RPC arguments\n nfsd41: Backchannel: callback infrastructure\n nfsd4: use common rpc_cred for all callbacks\n nfsd4: allow nfs4 state startup to fail\n SUNRPC: Defer the auth_gss upcall when the RPC call is asynchronous\n nfsd4: fix null dereference creating nfsv4 callback client\n nfsd4: fix whitespace in NFSPROC4_CLNT_CB_NULL definition\n nfsd41: sunrpc: add new xprt class for nfsv4.1 backchannel\n sunrpc/cache: simplify cache_fresh_locked and cache_fresh_unlocked.\n ...\n" }, { "commit": "342ff1a1b558ebbdb8cbd55ab6a63eca8b2473ca", "tree": "1f967f283dade6e03897169bb29513354f49f910", "parents": [ "50223e486cabdcf7e540e519da1f26bab3084e5d", "24ed7a97464db44592495f98cff8bcee02f92bc2" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:51:45 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:51:45 2009 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial\n\n* \u0027for-linus\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits)\n trivial: fix typo in aic7xxx comment\n trivial: fix comment typo in drivers/ata/pata_hpt37x.c\n trivial: typo in kernel-parameters.txt\n trivial: fix typo in tracing documentation\n trivial: add __init/__exit macros in drivers/gpio/bt8xxgpio.c\n trivial: add __init macro/ fix of __exit macro location in ipmi_poweroff.c\n trivial: remove unnecessary semicolons\n trivial: Fix duplicated word \"options\" in comment\n trivial: kbuild: remove extraneous blank line after declaration of usage()\n trivial: improve help text for mm debug config options\n trivial: doc: hpfall: accept disk device to unload as argument\n trivial: doc: hpfall: reduce risk that hpfall can do harm\n trivial: SubmittingPatches: Fix reference to renumbered step\n trivial: fix typos \"man[ae]g?ment\" -\u003e \"management\"\n trivial: media/video/cx88: add __init/__exit macros to cx88 drivers\n trivial: fix typo in CONFIG_DEBUG_FS in gcov doc\n trivial: fix missing printk space in amd_k7_smp_check\n trivial: fix typo s/ketymap/keymap/ in comment\n trivial: fix typo \"to to\" in multiple files\n trivial: fix typos in comments s/DGBU/DBGU/\n ...\n" }, { "commit": "3d2d827f5ca5e32816194119d5c980c7e04474a6", "tree": "fe0e84669f5f20e1dff8e3dc6b191b4d5dfc0145", "parents": [ "425fbf047cc70bb30dff368a6da02c8c2d229318" ], "author": { "name": "Michael S. Tsirkin", "email": "mst@redhat.com", "time": "Mon Sep 21 17:03:51 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:42 2009 -0700" }, "message": "mm: move use_mm/unuse_mm from aio.c to mm/\n\nAnyone who wants to do copy to/from user from a kernel thread, needs\nuse_mm (like what fs/aio has). Move that into mm/, to make reusing and\nexporting easier down the line, and make aio use it. Next intended user,\nbesides aio, will be vhost-net.\n\nAcked-by: Andrea Arcangeli \u003caarcange@redhat.com\u003e\nSigned-off-by: Michael S. Tsirkin \u003cmst@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": "6bfde05bf5c9682e255c6a2c669dc80f91af6296", "tree": "3ff62bb87fc12c1ce808a54f789c42c35be7c049", "parents": [ "f8dbf0a7a4c5d98e8b70da9f7f4f6a89f3b7a7bb" ], "author": { "name": "Eric B Munson", "email": "ebmunson@us.ibm.com", "time": "Mon Sep 21 17:03:43 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:41 2009 -0700" }, "message": "hugetlbfs: allow the creation of files suitable for MAP_PRIVATE on the vfs internal mount\n\nThis patchset adds a flag to mmap that allows the user to request that an\nanonymous mapping be backed with huge pages. This mapping will borrow\nfunctionality from the huge page shm code to create a file on the kernel\ninternal mount and use it to approximate an anonymous mapping. The\nMAP_HUGETLB flag is a modifier to MAP_ANONYMOUS and will not work without\nboth flags being preset.\n\nA new flag is necessary because there is no other way to hook into huge\npages without creating a file on a hugetlbfs mount which wouldn\u0027t be\nMAP_ANONYMOUS.\n\nTo userspace, this mapping will behave just like an anonymous mapping\nbecause the file is not accessible outside of the kernel.\n\nThis patchset is meant to simplify the programming model. Presently there\nis a large chunk of boiler platecode, contained in libhugetlbfs, required\nto create private, hugepage backed mappings. This patch set would allow\nuse of hugepages without linking to libhugetlbfs or having hugetblfs\nmounted.\n\nUnification of the VM code would provide these same benefits, but it has\nbeen resisted each time that it has been suggested for several reasons: it\nwould break PAGE_SIZE assumptions across the kernel, it makes page-table\nabstractions really expensive, and it does not provide any benefit on\narchitectures that do not support huge pages, incurring fast path\npenalties without providing any benefit on these architectures.\n\nThis patch:\n\nThere are two means of creating mappings backed by huge pages:\n\n 1. mmap() a file created on hugetlbfs\n 2. Use shm which creates a file on an internal mount which essentially\n maps it MAP_SHARED\n\nThe internal mount is only used for shared mappings but there is very\nlittle that stops it being used for private mappings. This patch extends\nhugetlbfs_file_setup() to deal with the creation of files that will be\nmapped MAP_PRIVATE on the internal hugetlbfs mount. This extended API is\nused in a subsequent patch to implement the MAP_HUGETLB mmap() flag.\n\nSigned-off-by: Eric Munson \u003cebmunson@us.ibm.com\u003e\nAcked-by: David Rientjes \u003crientjes@google.com\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Adam Litke \u003cagl@us.ibm.com\u003e\nCc: David Gibson \u003cdavid@gibson.dropbear.id.au\u003e\nCc: Lee Schermerhorn \u003clee.schermerhorn@hp.com\u003e\nCc: Nick Piggin \u003cnickpiggin@yahoo.com.au\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3f96b79ad96263cc0ece7bb340cddf9b2ddfb1b3", "tree": "0da9828c16543164f1b055fd927ea3e222ca05e5", "parents": [ "cdf7b3418ad5a8783efe8f9124023d9b869fec0f" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:03:37 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:41 2009 -0700" }, "message": "tmpfs: depend on shmem\n\nCONFIG_SHMEM off gives you (ramfs masquerading as) tmpfs, even when\nCONFIG_TMPFS is off: that\u0027s a little anomalous, and I\u0027d intended to make\nmore sense of it by removing CONFIG_TMPFS altogether, always enabling its\ncode when CONFIG_SHMEM; but so many defconfigs have CONFIG_SHMEM on\nCONFIG_TMPFS off that we\u0027d better leave that as is.\n\nBut there is no point in asking for CONFIG_TMPFS if CONFIG_SHMEM is off:\nmake TMPFS depend on SHMEM, which also prevents TMPFS_POSIX_ACL\nshmem_acl.o being pointlessly built into the kernel when SHMEM is off.\n\nAnd a selfish change, to prevent the world from being rebuilt when I\nswitch between CONFIG_SHMEM on and off: the only CONFIG_SHMEM in the\nheader files is mm.h shmem_lock() - give that a shmem.c stub instead.\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nAcked-by: Matt Mackall \u003cmpm@selenic.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "f3e8fccd06d27773186a0094371daf2d84c79469", "tree": "46e652e6ac3588a26c6d3e38ea10274eb3fc2ea8", "parents": [ "1c3aff1ceec2cc86810e2690e67873ff0c505862" ], "author": { "name": "Hugh Dickins", "email": "hugh.dickins@tiscali.co.uk", "time": "Mon Sep 21 17:03:25 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:40 2009 -0700" }, "message": "mm: add get_dump_page\n\nIn preparation for the next patch, add a simple get_dump_page(addr)\ninterface for the CONFIG_ELF_CORE dumpers to use, instead of calling\nget_user_pages() directly. They\u0027re not interested in errors: they\njust want to use holes as much as possible, to save space and make\nsure that the data is aligned where the headers said it would be.\n\nOh, and don\u0027t use that horrid DUMP_SEEK(off) macro!\n\nSigned-off-by: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nAcked-by: Rik van Riel \u003criel@redhat.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Nick Piggin \u003cnpiggin@suse.de\u003e\nCc: Mel Gorman \u003cmel@csn.ul.ie\u003e\nCc: Minchan Kim \u003cminchan.kim@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": "5d863b89688e5811cd9e5bd0082cb38abe03adf3", "tree": "6041584a854fc70cd497843f134e2cf983741230", "parents": [ "8c5cd6f3a1721085652da204d454af4f8b92eda2" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:03:16 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:39 2009 -0700" }, "message": "oom: fix oom_adjust_write() input sanity check\n\nAndrew Morton pointed out oom_adjust_write() has very strange EIO\nand new line handling. this patch fixes it.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Oleg Nesterov \u003coleg@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": "495789a51a91cb8c015d8d77fecbac1caf20b186", "tree": "ac2a71ed40ed84f5673326aa6bf7f278b54d989a", "parents": [ "28b83c5193e7ab951e402252278f2cc79dc4d298" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:03:14 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:39 2009 -0700" }, "message": "oom: make oom_score to per-process value\n\noom-killer kills a process, not task. Then oom_score should be calculated\nas per-process too. it makes consistency more and makes speed up\nselect_bad_process().\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Oleg Nesterov \u003coleg@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": "28b83c5193e7ab951e402252278f2cc79dc4d298", "tree": "10080e8d3957c2a03f8419ab44c9ecb0ffcdaee0", "parents": [ "f168e1b6390e2d79cf57e48e6ae6d9b0a9e2851a" ], "author": { "name": "KOSAKI Motohiro", "email": "kosaki.motohiro@jp.fujitsu.com", "time": "Mon Sep 21 17:03:13 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:39 2009 -0700" }, "message": "oom: move oom_adj value from task_struct to signal_struct\n\nCurrently, OOM logic callflow is here.\n\n __out_of_memory()\n select_bad_process() for each task\n badness() calculate badness of one task\n oom_kill_process() search child\n oom_kill_task() kill target task and mm shared tasks with it\n\nexample, process-A have two thread, thread-A and thread-B and it have very\nfat memory and each thread have following oom_adj and oom_score.\n\n thread-A: oom_adj \u003d OOM_DISABLE, oom_score \u003d 0\n thread-B: oom_adj \u003d 0, oom_score \u003d very-high\n\nThen, select_bad_process() select thread-B, but oom_kill_task() refuse\nkill the task because thread-A have OOM_DISABLE. Thus __out_of_memory()\ncall select_bad_process() again. but select_bad_process() select the same\ntask. It mean kernel fall in livelock.\n\nThe fact is, select_bad_process() must select killable task. otherwise\nOOM logic go into livelock.\n\nAnd root cause is, oom_adj shouldn\u0027t be per-thread value. it should be\nper-process value because OOM-killer kill a process, not thread. Thus\nThis patch moves oomkilladj (now more appropriately named oom_adj) from\nstruct task_struct to struct signal_struct. it naturally prevent\nselect_bad_process() choose wrong task.\n\nSigned-off-by: KOSAKI Motohiro \u003ckosaki.motohiro@jp.fujitsu.com\u003e\nCc: Paul Menage \u003cmenage@google.com\u003e\nCc: David Rientjes \u003crientjes@google.com\u003e\nCc: KAMEZAWA Hiroyuki \u003ckamezawa.hiroyu@jp.fujitsu.com\u003e\nCc: Rik van Riel \u003criel@redhat.com\u003e\nCc: Oleg Nesterov \u003coleg@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": "4481374ce88ba8f460c8b89f2572027bd27057d0", "tree": "6896601b6a1da0e3e932ffa75fcff966c834c02c", "parents": [ "4738e1b9cf8f9e28d7de080a5e6ce5d0095ea18f" ], "author": { "name": "Jan Beulich", "email": "JBeulich@novell.com", "time": "Mon Sep 21 17:03:05 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Sep 22 07:17:38 2009 -0700" }, "message": "mm: replace various uses of num_physpages by totalram_pages\n\nSizing of memory allocations shouldn\u0027t depend on the number of physical\npages found in a system, as that generally includes (perhaps a huge amount\nof) non-RAM pages. The amount of what actually is usable as storage\nshould instead be used as a basis here.\n\nSome of the calculations (i.e. those not intending to use high memory)\nshould likely even use (totalram_pages - totalhigh_pages).\n\nSigned-off-by: Jan Beulich \u003cjbeulich@novell.com\u003e\nAcked-by: Rusty Russell \u003crusty@rustcorp.com.au\u003e\nAcked-by: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Dave Airlie \u003cairlied@linux.ie\u003e\nCc: Kyle McMartin \u003ckyle@mcmartin.ca\u003e\nCc: Jeremy Fitzhardinge \u003cjeremy@goop.org\u003e\nCc: Pekka Enberg \u003cpenberg@cs.helsinki.fi\u003e\nCc: Hugh Dickins \u003chugh.dickins@tiscali.co.uk\u003e\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Patrick McHardy \u003ckaber@trash.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" } ], "next": "73d7c33e81aed92ac185950a20407c1a2ea65a83" }