)]}' { "log": [ { "commit": "9e203936eac786f9268d6a13e6442d2accef1829", "tree": "1da906e1c099b3afacf3b358b8981931c4da45fd", "parents": [ "993ecff81aa6d50d694704de2647a5529ff2f166", "724577ca355795b0a25c93ccbeee927871ca1a77" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jan 09 12:51:01 2012 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jan 09 12:51:01 2012 -0800" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.open-osd.org/linux-open-osd\n\n* \u0027for-linus\u0027 of git://git.open-osd.org/linux-open-osd:\n ore: Must support none-PAGE-aligned IO\n ore: fix BUG_ON, too few sgs when reading\n ore: Fix crash in case of an IO error.\n ore: FIX breakage when MISC_FILESYSTEMS is not set\n" }, { "commit": "da01636a6511c3bd0c1cf546c47b8e92a837a613", "tree": "394f40f4763d444ace4990ff1a5d21b386f83167", "parents": [ "3850aba74873aa47fefe6900b99f42f5e656a6e7" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sun Jan 08 19:45:28 2012 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sun Jan 08 20:19:12 2012 -0500" }, "message": "exofs: oops after late failure in mount\n\nWe have already set -\u003es_root, so -\u003eput_super() is going to be called.\nFreeing -\u003es_fs_info is a bloody bad idea when it\u0027s going to be\ndereferenced very shortly...\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "724577ca355795b0a25c93ccbeee927871ca1a77", "tree": "ca3cdb4e7f1b9ab7963503227e1ca555c3535b3f", "parents": [ "361aba569f55dd159b850489a3538253afbb3973" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Dec 28 19:21:45 2011 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Jan 08 10:43:13 2012 +0200" }, "message": "ore: Must support none-PAGE-aligned IO\n\nNFS might send us offsets that are not PAGE aligned. So\nwe must read in the reminder of the first/last pages, in cases\nwe need it for Parity calculations.\n\nWe only add an sg segments to read the partial page. But\nwe don\u0027t mark it as read\u003dtrue because it is a lock-for-write\npage.\n\nTODO: In some cases (IO spans a single unit) we can just\nadjust the raid_unit offset/length, but this is left for\nlater Kernels.\n\n[Bug in 3.2.0 Kernel]\nCC: Stable Tree \u003cstable@kernel.org\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "361aba569f55dd159b850489a3538253afbb3973", "tree": "e5a71f53908a67d8873f1a58ae8d83c64b2fdd7f", "parents": [ "ffefb8eaa367e8a5c14f779233d9da1fbc23d164" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Dec 28 19:14:23 2011 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Jan 06 16:49:07 2012 +0200" }, "message": "ore: fix BUG_ON, too few sgs when reading\n\nWhen reading RAID5 files, in rare cases, we calculated too\nfew sg segments. There should be two extra for the beginning\nand end partial units.\n\nAlso \"too few sg segments\" should not be a BUG_ON there is\nall the mechanics in place to handle it, as a short read.\nSo just return -ENOMEM and the rest of the code will gracefully\nsplit the IO.\n\n[Bug in 3.2.0 Kernel]\nCC: Stable Tree \u003cstable@kernel.org\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "ffefb8eaa367e8a5c14f779233d9da1fbc23d164", "tree": "6be1540656853d64a762625386d515b12e363dd4", "parents": [ "831c2dc5f47c1dc79c32229d75065ada1dcc66e1" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Dec 27 19:23:36 2011 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Jan 06 16:49:06 2012 +0200" }, "message": "ore: Fix crash in case of an IO error.\n\nThe users of ore_check_io() expect the reported device\n(In case of error) to be indexed relative to the passed-in\nore_components table, and not the logical dev index.\n\nThis causes a crash inside objlayoutdriver in case of\nan IO error.\n\n[Bug in 3.2.0 Kernel]\nCC: Stable Tree \u003cstable@kernel.org\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "831c2dc5f47c1dc79c32229d75065ada1dcc66e1", "tree": "8be3ce44e1377ed040e6c0ee3ea242dbbf75c46b", "parents": [ "5f0a6e2d503896062f641639dacfe5055c2f593b" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Nov 29 15:35:53 2011 -0800" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Jan 06 16:48:14 2012 +0200" }, "message": "ore: FIX breakage when MISC_FILESYSTEMS is not set\n\nAs Reported by Randy Dunlap\n\nWhen MISC_FILESYSTEMS is not enabled and NFS4.1 is:\n\nfs/built-in.o: In function `objio_alloc_io_state\u0027:\nobjio_osd.c:(.text+0xcb525): undefined reference to `ore_get_rw_state\u0027\nfs/built-in.o: In function `_write_done\u0027:\nobjio_osd.c:(.text+0xcb58d): undefined reference to `ore_check_io\u0027\nfs/built-in.o: In function `_read_done\u0027:\n...\n\nWhen MISC_FILESYSTEMS, which is more of a GUI thing then anything else,\nis not selected. exofs/Kconfig is never examined during Kconfig,\nand it can not do it\u0027s magic stuff to automatically select everything\nneeded.\n\nWe must split exofs/Kconfig in two. The ore one is always included.\nAnd the exofs one is left in it\u0027s old place in the menu.\n\n[Needed for the 3.2.0 Kernel]\nCC: Stable Tree \u003cstable@kernel.org\u003e\nReported-by: Randy Dunlap \u003crdunlap@xenotime.net\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "bef41c267e2b903f411c0f56236027f68553b721", "tree": "ebbf53837c19c3dd55081b770f76e9a4aec9b001", "parents": [ "c6e49e3f266dbe62773941dca8afa65f53b5415f" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jul 26 03:07:49 2011 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jan 03 22:55:05 2012 -0500" }, "message": "exofs: propagate umode_t\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "1a67aafb5f72a436ca044293309fa7e6351d6a35", "tree": "d9e58600148de9d41b478cf815773b746647d15b", "parents": [ "4acdaf27ebe2034c342f3be57ef49aed1ad885ef" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jul 26 01:52:52 2011 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jan 03 22:54:54 2012 -0500" }, "message": "switch -\u003emknod() to umode_t\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "4acdaf27ebe2034c342f3be57ef49aed1ad885ef", "tree": "d89a876ee19cd88609a587f8aa6c464a52ee6d98", "parents": [ "18bb1db3e7607e4a997d50991a6f9fa5b0f8722c" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jul 26 01:42:34 2011 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jan 03 22:54:53 2012 -0500" }, "message": "switch -\u003ecreate() to umode_t\n\nvfs_create() ignores everything outside of 16bit subset of its\nmode argument; switching it to umode_t is obviously equivalent\nand it\u0027s the only caller of the method\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "18bb1db3e7607e4a997d50991a6f9fa5b0f8722c", "tree": "4ee4e584bc9a67f3ec14ce159d2d7d4a27e68d4a", "parents": [ "8208a22bb8bd3c52ef634b4ff194f14892ab1713" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jul 26 01:41:39 2011 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jan 03 22:54:53 2012 -0500" }, "message": "switch vfs_mkdir() and -\u003emkdir() to umode_t\n\nvfs_mkdir() gets int, but immediately drops everything that might not\nfit into umode_t and that\u0027s the only caller of -\u003emkdir()...\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "6b520e0565422966cdf1c3759bd73df77b0f248c", "tree": "f63a26afa7342eb59b125271b16e30a219b59094", "parents": [ "2a79f17e4a641a2f463cb512cb0ec349844a147b" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Dec 12 15:51:45 2011 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Jan 03 22:52:40 2012 -0500" }, "message": "vfs: fix the stupidity with i_dentry in inode destructors\n\nSeeing that just about every destructor got that INIT_LIST_HEAD() copied into\nit, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once();\nthe cost of taking it into inode_init_always() will be negligible for pipes\nand sockets and negative for everything else. Not to mention the removal of\nboilerplate code from -\u003edestroy_inode() instances...\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "32aaeffbd4a7457bf2f7448b33b5946ff2a960eb", "tree": "faf7ad871d87176423ff9ed1d1ba4d9c688fc23f", "parents": [ "208bca0860406d16398145ddd950036a737c3c9d", "67b84999b1a8b1af5625b1eabe92146c5eb42932" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Nov 06 19:44:47 2011 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Nov 06 19:44:47 2011 -0800" }, "message": "Merge branch \u0027modsplit-Oct31_2011\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux\n\n* \u0027modsplit-Oct31_2011\u0027 of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)\n Revert \"tracing: Include module.h in define_trace.h\"\n irq: don\u0027t put module.h into irq.h for tracking irqgen modules.\n bluetooth: macroize two small inlines to avoid module.h\n ip_vs.h: fix implicit use of module_get/module_put from module.h\n nf_conntrack.h: fix up fallout from implicit moduleparam.h presence\n include: replace linux/module.h with \"struct module\" wherever possible\n include: convert various register fcns to macros to avoid include chaining\n crypto.h: remove unused crypto_tfm_alg_modname() inline\n uwb.h: fix implicit use of asm/page.h for PAGE_SIZE\n pm_runtime.h: explicitly requires notifier.h\n linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h\n miscdevice.h: fix up implicit use of lists and types\n stop_machine.h: fix implicit use of smp.h for smp_processor_id\n of: fix implicit use of errno.h in include/linux/of.h\n of_platform.h: delete needless include \u003clinux/module.h\u003e\n acpi: remove module.h include from platform/aclinux.h\n miscdevice.h: delete unnecessary inclusion of module.h\n device_cgroup.h: delete needless include \u003clinux/module.h\u003e\n net: sch_generic remove redundant use of \u003clinux/module.h\u003e\n net: inet_timewait_sock doesnt need \u003clinux/module.h\u003e\n ...\n\nFix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in\n - drivers/media/dvb/frontends/dibx000_common.c\n - drivers/media/video/{mt9m111.c,ov6650.c}\n - drivers/mfd/ab3550-core.c\n - include/linux/dmaengine.h\n" }, { "commit": "6736c047995c560b73f3860095c631456b0bbea8", "tree": "1ef4d2ab9d7d2f2cd3fe26a3e9135fb312e81b85", "parents": [ "16dfd1faed8c5235d9a7c190b91b6d97d6cd3272", "6070295efc90d1093b2031c43380bd7d9673c802" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 04 12:27:43 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Nov 04 12:27:43 2011 -0700" }, "message": "Merge branch \u0027nfs-for-3.2\u0027 of git://git.linux-nfs.org/projects/trondmy/linux-nfs\n\n* \u0027nfs-for-3.2\u0027 of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (25 commits)\n nfs: set vs_hidden on nfs4_callback_version4 (try #2)\n pnfs-obj: Support for RAID5 read-4-write interface.\n pnfs-obj: move to ore 03: Remove old raid engine\n pnfs-obj: move to ore 02: move to ORE\n pnfs-obj: move to ore 01: ore_layout \u0026 ore_components\n pnfs-obj: Rename objlayout_io_state \u003d\u003e objlayout_io_res\n pnfs-obj: Get rid of objlayout_{alloc,free}_io_state\n pnfs-obj: Return PNFS_NOT_ATTEMPTED in case of read/write_pagelist\n pnfs-obj: Remove redundant EOF from objlayout_io_state\n nfs: Remove unused variable from write.c\n nfs: Fix unused variable warning from file.c\n NFS: Remove no-op less-than-zero checks on unsigned variables.\n NFS: Clean up nfs4_xdr_dec_secinfo()\n NFS: Fix documenting comment for nfs_create_request()\n NFS4: fix cb_recallany decode error\n nfs4: serialize layoutcommit\n SUNRPC: remove rpcbind clients destruction on module cleanup\n SUNRPC: remove rpcbind clients creation during service registering\n NFSd: call svc rpcbind cleanup explicitly\n SUNRPC: cleanup service destruction\n ...\n" }, { "commit": "eecfc6312a24e6d0d2883de0a9a6ccf8e993f472", "tree": "83b7b6d8895a007e698e59f065924527e8870d90", "parents": [ "af4f5b54bcf0379089d01518e818f37258708fb7" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 31 15:15:38 2011 -0700" }, "committer": { "name": "Trond Myklebust", "email": "Trond.Myklebust@netapp.com", "time": "Wed Nov 02 23:56:08 2011 -0400" }, "message": "pnfs-obj: move to ore 02: move to ORE\n\nIn this patch we are actually moving to the ORE.\n(Object Raid Engine).\n\nobjio_state holds a pointer to an ore_io_state. Once\nwe have an ore_io_state at hand we can call the ore\nfor reading/writing. We register on the done path\nto kick off the nfs io_done mechanism.\n\nAgain for Ease of reviewing the old code is \"#if 0\"\nbut is not removed so the diff command works better.\nThe old code will be removed in the next patch.\n\nfs/exofs/Kconfig::ORE is modified to also be auto-included\nif PNFS_OBJLAYOUT is set. Since we now depend on ORE.\n(See comments in fs/exofs/Kconfig)\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nSigned-off-by: Trond Myklebust \u003cTrond.Myklebust@netapp.com\u003e\n" }, { "commit": "bfe8684869601dacfcb2cd69ef8cfd9045f62170", "tree": "4e213aaa766b26f43f0f9ec7998a7745239d9377", "parents": [ "6d6b77f163c7eabedbba00ed2abb7d4a570bff76" ], "author": { "name": "Miklos Szeredi", "email": "mszeredi@suse.cz", "time": "Fri Oct 28 14:13:29 2011 +0200" }, "committer": { "name": "Christoph Hellwig", "email": "hch@serles.lst.de", "time": "Wed Nov 02 12:53:43 2011 +0100" }, "message": "filesystems: add set_nlink()\n\nReplace remaining direct i_nlink updates with a new set_nlink()\nupdater function.\n\nSigned-off-by: Miklos Szeredi \u003cmszeredi@suse.cz\u003e\nTested-by: Toshiyuki Okajima \u003ctoshi.okajima@jp.fujitsu.com\u003e\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\n" }, { "commit": "143cb494cb6662e37c4020b7fe9839837f718e56", "tree": "249abcf5afe251a9244a414f9d66c73b9458274e", "parents": [ "afeacc8c1f38b7bb93d4bc7b4ba04c2605061ef0" ], "author": { "name": "Paul Gortmaker", "email": "paul.gortmaker@windriver.com", "time": "Fri Jul 01 14:23:34 2011 -0400" }, "committer": { "name": "Paul Gortmaker", "email": "paul.gortmaker@windriver.com", "time": "Mon Oct 31 19:30:31 2011 -0400" }, "message": "fs: add module.h to files that were implicitly using it\n\nSome files were using the complete module.h infrastructure without\nactually including the header at all. Fix them up in advance so\nonce the implicit presence is removed, we won\u0027t get failures like this:\n\n CC [M] fs/nfsd/nfssvc.o\nfs/nfsd/nfssvc.c: In function \u0027nfsd_create_serv\u0027:\nfs/nfsd/nfssvc.c:335: error: \u0027THIS_MODULE\u0027 undeclared (first use in this function)\nfs/nfsd/nfssvc.c:335: error: (Each undeclared identifier is reported only once\nfs/nfsd/nfssvc.c:335: error: for each function it appears in.)\nfs/nfsd/nfssvc.c: In function \u0027nfsd\u0027:\nfs/nfsd/nfssvc.c:555: error: implicit declaration of function \u0027module_put_and_exit\u0027\nmake[3]: *** [fs/nfsd/nfssvc.o] Error 1\n\nSigned-off-by: Paul Gortmaker \u003cpaul.gortmaker@windriver.com\u003e\n" }, { "commit": "44231e686b2ba3b5702db867bb84e6d76b7cf2c7", "tree": "ba99b8cf458a8c24264bfe3826d44610861a283a", "parents": [ "dd296619974c50c46c67e58f355a7e85ef3f0c01" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Nov 21 20:03:24 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 24 17:22:29 2011 -0700" }, "message": "ore: Enable RAID5 mounts\n\nNow that we support raid5 Enable it at mount. Raid6 will come next\nraid4 is not demanded for so it will probably not be enabled.\n(Until some one wants it)\n\nNOTE: That mkfs.exofs had support for raid5/6 since long time\nago. (Making an empty raidX FS is just as easy as raid0 ;-} )\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "dd296619974c50c46c67e58f355a7e85ef3f0c01", "tree": "516eb00e50add1fe1cce74e8967857af5d41083e", "parents": [ "769ba8d92025fa390f3097e658b8ed6e032d68e9" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Oct 12 15:42:07 2011 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 24 17:22:28 2011 -0700" }, "message": "exofs: Support for RAID5 read-4-write interface.\n\nThe ore need suplied a r4w_get_page/r4w_put_page API\nfrom Filesystem so it can get cache pages to read-into when\nwriting parial stripes.\n\nAlso I commented out and NULLed the .writepage (singular)\nvector. Because it gives terrible write pattern to raid\nand is apparently not needed. Even in OOM conditions the\nsystem copes (even better) with out it.\n\nTODO: How to specify to write_cache_pages() to start\n or include a certain page?\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "769ba8d92025fa390f3097e658b8ed6e032d68e9", "tree": "eec1a556d6b3796f702c96e7f97ce94ba7d9d410", "parents": [ "a1fec1dbbc8db974d2582e4040590cebe72171e4" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Oct 14 15:33:51 2011 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 24 17:15:33 2011 -0700" }, "message": "ore: RAID5 Write\n\nThis is finally the RAID5 Write support.\n\nThe bigger part of this patch is not the XOR engine itself, But the\nread4write logic, which is a complete mini prepare_for_striping\nreading engine that can read scattered pages of a stripe into cache\nso it can be used for XOR calculation. That is, if the write was not\nstripe aligned.\n\nThe main algorithm behind the XOR engine is the 2 dimensional array:\n\tstruct __stripe_pages_2d.\nA drawing might save 1000 words\n---\n\n__stripe_pages_2d\n |\n n \u003d pages_in_stripe_unit;\n w \u003d group_width - parity;\n | pages array presented to the XOR lib\n | |\n V |\n __1_page_stripe[0].pages --\u003e [c0][c1]..[cw][c_par] \u003c---|\n | |\n __1_page_stripe[1].pages --\u003e [c0][c1]..[cw][c_par] \u003c---\n |\n... | ...\n |\n __1_page_stripe[n].pages --\u003e [c0][c1]..[cw][c_par]\n ^\n |\n data added columns first then row\n\n---\nThe pages are put on this array columns first. .i.e:\n\tp0-of-c0, p1-of-c0, ... pn-of-c0, p0-of-c1, ...\nSo we are doing a corner turn of the pages.\n\nNote that pages will zigzag down and left. but are put sequentially\nin growing order. So when the time comes to XOR the stripe, only the\nbeginning and end of the array need be checked. We scan the array\nand any NULL spot will be field by pages-to-be-read.\n\nThe FS that wants to support RAID5 needs to supply an\noperations-vector that searches a given page in cache, and specifies\nif the page is uptodate or need reading. All these pages to be read\nare put on a slave ore_io_state and synchronously read. All the pages\nof a stripe are read in one IO, using the scatter gather mechanism.\n\nIn write we constrain our IO to only be incomplete on a single\nstripe. Meaning either the complete IO is within a single stripe so\nwe might have pages to read from both beginning or end of the\nstrip. Or we have some reading to do at beginning but end at strip\nboundary. The left over pages are pushed to the next IO by the API\nalready established by previous work, where an IO offset/length\ncombination presented to the ORE might get the length truncated and\nthe user must re-submit the leftover pages. (Both exofs and NFS\nsupport this)\n\nBut any ORE user should make it\u0027s best effort to align it\u0027s IO\nbefore hand and avoid complications. A cached ore_layout-\u003estripe_size\nmember can be used for that calculation. (NOTE: that ORE demands\nthat stripe_size may not be bigger then 32bit)\n\nWhat else? Well read it and tell me.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "a1fec1dbbc8db974d2582e4040590cebe72171e4", "tree": "9dcbe1933b7f40256f40393f3c86dbb16e8fb953", "parents": [ "3e335672e018c06e007f85a5d54afd721fb3d6d5" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Oct 12 18:42:22 2011 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 24 16:55:36 2011 -0700" }, "message": "ore: RAID5 read\n\nThis patch introduces the first stage of RAID5 support\nmainly the skip-over-raid-units when reading. For\nwrites it inserts BLANK units, into where XOR blocks\nshould be calculated and written to.\n\nIt introduces the new \"general raid maths\", and the main\nadditional parameters and components needed for raid5.\n\nSince at this stage it could corrupt future version that\nactually do support raid5. The enablement of raid5\nmounting and setting of parity-count \u003e 0 is disabled. So\nthe raid5 code will never be used. Mounting of raid5 is\nonly enabled later once the basic XOR write is also in.\nBut if the patch \"enable RAID5\" is applied this code has\nbeen tested to be able to properly read raid5 volumes\nand is according to standard.\n\nAlso it has been tested that the new maths still properly\nsupports RAID0 and grouping code just as before.\n(BTW: I have found more bugs in the pnfs-obj RAID math\n fixed here)\n\nThe ore.c file is getting too big, so new ore_raid.[hc]\nfiles are added that will include the special raid stuff\nthat are not used in striping and mirrors. In future write\nsupport these will get bigger.\nWhen adding the ore_raid.c to Kbuild file I was forced to\nrename ore.ko to libore.ko. Is it possible to keep source\nfile, say ore.c and module file ore.ko the same even if there\nare multiple files inside ore.ko?\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "611d7a5dc6f2a1a0cfd8cc07b9d15f794cbe5f98", "tree": "14227c7f62331a977e1979d1011b1bc85b6e102e", "parents": [ "4b46c9f5cf69505f0bc708995b88b0cc60317ffd" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Oct 04 14:20:17 2011 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 24 16:30:08 2011 -0700" }, "message": "ore: Make ore_calc_stripe_info EXPORT_SYMBOL\n\nore_calc_stripe_info is needed by exofs::export.c\nfor the layout calculations. Make it exportable\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "4b46c9f5cf69505f0bc708995b88b0cc60317ffd", "tree": "e5369fe948509c230470f922a0cd89cda60f2692", "parents": [ "5a51c0c7e9a913649aa65d8233470682bcbb7694" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Sep 28 13:25:50 2011 +0300" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Oct 14 18:54:42 2011 +0200" }, "message": "ore/exofs: Change ore_check_io API\n\nCurrent ore_check_io API receives a residual\npointer, to report partial IO. But it is actually\nnot used, because in a multiple devices IO there\nis never a linearity in the IO failure.\n\nOn the other hand if every failing device is reported\nthrough a received callback measures can be taken to\nhandle only failed devices. One at a time.\n\nThis will also be needed by the objects-layout-driver\nfor it\u0027s error reporting facility.\n\nExofs is not currently using the new information and\nkeeps the old behaviour of failing the complete IO in\ncase of an error. (No partial completion)\n\nTODO: Use an ore_check_io callback to set_page_error only\nthe failing pages. And re-dirty write pages.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "5a51c0c7e9a913649aa65d8233470682bcbb7694", "tree": "4ed43b3a2f9fade227e098771a5bed66f6a71dc4", "parents": [ "3bd9856857339d7ee8c4ad50030583f1b9415c39" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Sep 28 13:18:45 2011 +0300" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Oct 14 18:54:41 2011 +0200" }, "message": "ore/exofs: Define new ore_verify_layout\n\nAll users of the ore will need to check if current code\nsupports the given layout. For example RAID5/6 is not\ncurrently supported.\n\nSo move all the checks from exofs/super.c to a new\nore_verify_layout() to be used by ore users.\n\nNote that any new layout should be passed through the\nore_verify_layout() because the ore engine will prepare\nand verify some internal members of ore_layout, and\nassumes it\u0027s called.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "3bd9856857339d7ee8c4ad50030583f1b9415c39", "tree": "fa5d950b9beffa2a10bc698d452ae50b8e195d5e", "parents": [ "bbf9a31bba8c985780fe94da059cc5813a7920f5" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Sep 28 12:04:23 2011 +0300" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Oct 14 18:54:41 2011 +0200" }, "message": "ore: Support for partial component table\n\nUsers like the objlayout-driver would like to only pass\na partial device table that covers the IO in question.\nFor example exofs divides the file into raid-group-sized\nchunks and only serves group_width number of devices at\na time.\n\nThe partiality is communicated by setting\nore_componets-\u003efirst_dev and the array covers all logical\ndevices from oc-\u003efirst_dev upto (oc-\u003efirst_dev + oc-\u003enumdevs)\n\nThe ore_comp_dev() API receives a logical device index\nand returns the actual present device in the table.\nAn out-of-range dev_index will BUG.\n\nLogical device index is the theoretical device index as if\nall the devices of a file are present. .i.e:\n\ttotal_devs \u003d group_width * mirror_p1 * group_count\n\t0 \u003c\u003d dev_index \u003c total_devs\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "bbf9a31bba8c985780fe94da059cc5813a7920f5", "tree": "882d91f165dad978295f14fb8226a1296ca72073", "parents": [ "154a9300cd87eee7538f356c9d339f06b0b1d257" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Aug 26 21:04:52 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Oct 14 18:54:40 2011 +0200" }, "message": "ore: Support for short read/writes\n\nMemory conditions and max_bio constraints might cause us to\nnot comply to the full length of the requested IO. Instead of\nfailing the complete IO we can issue a shorter read/write and\nreport how much was actually executed in the ios-\u003elength\nmember.\n\nAll users must check ios-\u003elength at IO_done or upon return of\nore_read/write and re-issue the reminder of the bytes. Because\nother wise there is no error returned like before.\n\nThis is part of the effort to support the pnfs-obj layout driver.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "154a9300cd87eee7538f356c9d339f06b0b1d257", "tree": "fc8f427a2db1a3817883f35048f0a62751083c36", "parents": [ "6851a5e5c12b35f8bb8986d0ff16ca9be4cf2c09" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Aug 26 21:00:32 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Oct 14 18:54:39 2011 +0200" }, "message": "exofs: Support for short read/writes\n\nIf at read/write_done the actual IO was shorter then requested,\nreported in returned ios-\u003elength. It is not an error. The reminder\nof the pages should just be unlocked but not marked uptodate or\nend_page_writeback. They will be re issued later by the VFS.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "6851a5e5c12b35f8bb8986d0ff16ca9be4cf2c09", "tree": "7c9a96e87d7789a830512240473e30ffc671a386", "parents": [ "98260754046eee4cc7d75751a4a20182ade39f58" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Aug 24 18:10:49 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Oct 14 18:53:55 2011 +0200" }, "message": "ore: Remove check for ios-\u003ekern_buff in _prepare_for_striping to later\n\nMove the check and preparation of the ios-\u003ekern_buff case to\nlater inside _write_mirror().\n\nSince read was never used with ios-\u003ekern_buff its support is removed\ninstead of fixed.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "98260754046eee4cc7d75751a4a20182ade39f58", "tree": "550d555ffbb51dde9a5fce2ecea1f19385de069e", "parents": [ "b916c5cd4d895a27b47a652648958f73e4f23ac6" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Oct 02 15:32:50 2011 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Oct 14 18:53:54 2011 +0200" }, "message": "ore: cleanup: Embed an ore_striping_info inside ore_io_state\n\nNow that each ore_io_state covers only a single raid group.\nA single striping_info math is needed. Embed one inside\nore_io_state to cache the calculation results and eliminate\nan extra call.\n\nAlso the outer _prepare_for_striping is removed since it does nothing.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "b916c5cd4d895a27b47a652648958f73e4f23ac6", "tree": "9fe6e59edd44119c79a18b9df0b02a0c4dacb6d1", "parents": [ "d866d875f68fdeae63df334d291fe138dc636d96" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Sep 28 11:55:51 2011 +0300" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Oct 14 18:52:50 2011 +0200" }, "message": "ore: Only IO one group at a time (API change)\n\nUsually a single IO is confined to one group of devices\n(group_width) and at the boundary of a raid group it can\nspill into a second group. Current code would allocate a\nfull device_table size array at each io_state so it can\ncomply to requests that span two groups. Needless to say\nthat is very wasteful, specially when device_table count\ncan get very large (hundreds even thousands), while a\ngroup_width is usually 8 or 10.\n\n* Change ore API to trim on IO that spans two raid groups.\n The user passes offset+length to ore_get_rw_state, the\n ore might trim on that length if spanning a group boundary.\n The user must check ios-\u003elength or ios-\u003enrpages to see\n how much IO will be preformed. It is the responsibility\n of the user to re-issue the reminder of the IO.\n\n* Modify exofs To copy spilled pages on to the next IO.\n This means one last kick is needed after all coalescing\n of pages is done.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "d866d875f68fdeae63df334d291fe138dc636d96", "tree": "9606674db2311ab869640526ef245aaa7fbf4ea8", "parents": [ "eb507bc18969f63b8968034144fd69706c492516" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Sep 28 14:43:09 2011 +0300" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Oct 04 12:13:59 2011 +0200" }, "message": "ore/exofs: Change the type of the devices array (API change)\n\nIn the pNFS obj-LD the device table at the layout level needs\nto point to a device_cache node, where it is possible and likely\nthat many layouts will point to the same device-nodes.\n\nIn Exofs we have a more orderly structure where we have a single\narray of devices that repeats twice for a round-robin view of the\ndevice table\n\nThis patch moves to a model that can be used by the pNFS obj-LD\nwhere struct ore_components holds an array of ore_dev-pointers.\n(ore_dev is newly defined and contains a struct osd_dev *od\n member)\n\nEach pointer in the array of pointers will point to a bigger\nuser-defined dev_struct. That can be accessed by use of the\ncontainer_of macro.\n\nIn Exofs an __alloc_dev_table() function allocates the\nore_dev-pointers array as well as an exofs_dev array, in one\nallocation and does the addresses dance to set everything pointing\ncorrectly. It still keeps the double allocation trick for the\ninodes round-robin view of the table.\n\nThe device table is always allocated dynamically, also for the\nsingle device case. So it is unconditionally freed at umount.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "eb507bc18969f63b8968034144fd69706c492516", "tree": "6f5606ce9af0636316683a03ed4f993afa10ed2d", "parents": [ "8d2d83a8352b0f9c1da82c36f741722f2960feea" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Aug 10 14:17:28 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 03 17:07:51 2011 +0200" }, "message": "ore: Make ore_striping_info and ore_calc_stripe_info public\n\nThe struct ore_striping_info will be used later in other\nstructures. And ore_calc_stripe_info as well. Rename them\nmake struct ore_striping_info public. ore_calc_stripe_info\nis still static, will be made public on first use.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "8d2d83a8352b0f9c1da82c36f741722f2960feea", "tree": "4a96539dce29c654def762d502b41da8de7cbce7", "parents": [ "5bf696dad4beecb6174e701c97e1f2574e6a2c96" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Aug 10 14:15:02 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 03 17:07:51 2011 +0200" }, "message": "exofs: Remove unused data_map member from exofs_sb_info\n\nThe struct pnfs_osd_data_map data_map member of exofs_sb_info was\nnever used after mount. In fact all it\u0027s members were duplicated\nby the ore_layout structure. So just remove the duplicated information.\n\nAlso removed some stupid, but perfectly supported, restrictions on\nlayout parameters. The case where num_devices is not divisible by\nmirror_count+1 is perfectly fine since the rotating device view\nwill eventually use all the devices it can get.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nSigned-off-by: Benny Halevy \u003cbhalevy@tonian.com\u003e\n" }, { "commit": "5bf696dad4beecb6174e701c97e1f2574e6a2c96", "tree": "b4cfd7e00a61310aaf5ac90e670c840184fc115d", "parents": [ "de74b05ace743b4a7aefad9e9b33ff899979b34a" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Sep 28 11:39:59 2011 +0300" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 03 17:07:50 2011 +0200" }, "message": "exofs: Rename struct ore_components comps \u003d\u003e oc\n\nore_components already has a comps member so this leads\nto things like comps-\u003ecomps which is annoying. the name oc\nwas already used in new code. So rename all old usage of\nore_components comps \u003d\u003e ore_components oc.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "de74b05ace743b4a7aefad9e9b33ff899979b34a", "tree": "9f62853e67803cf406eaf35238a429128f2272d3", "parents": [ "1958c7c284298f0d17a1ab3820c77c40ea3d3711" ], "author": { "name": "H Hartley Sweeten", "email": "hartleys@visionengravers.com", "time": "Fri Sep 23 13:46:51 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 03 17:07:29 2011 +0200" }, "message": "exofs/super.c: local functions should be static\n\nThis quiets the following sparse noise:\n\nwarning: symbol \u0027exofs_sync_fs\u0027 was not declared. Should it be static?\nwarning: symbol \u0027exofs_free_sbi\u0027 was not declared. Should it be static?\nwarning: symbol \u0027exofs_get_parent\u0027 was not declared. Should it be static?\n\nSigned-off-by: H Hartley Sweeten \u003chsweeten@visionengravers.com\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "1958c7c284298f0d17a1ab3820c77c40ea3d3711", "tree": "38941a12ab5c7e01613c2436bd5470142c3eb7d1", "parents": [ "a8f8c45082cb78489c5e6050c372ddac73ae439e" ], "author": { "name": "H Hartley Sweeten", "email": "hartleys@visionengravers.com", "time": "Fri Sep 23 13:42:43 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 03 17:06:47 2011 +0200" }, "message": "exofs/ore.c: local functions should be static\n\nThis quiets the sparse noise:\n\nwarning: symbol \u0027_calc_trunk_info\u0027 was not declared. Should it be static?\n\nSigned-off-by: H Hartley Sweeten \u003chsweeten@visionengravers.com\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "c2f340a69cabe0fb7b9f02d1a2495927db225a06", "tree": "dd9bc3125f833adf163c47542917ebc18b1acc56", "parents": [ "3ddcd0569cd68f00f3beae9a7959b72918bb91f4", "cf283ade08c454e884394a4720f22421dd33a715" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 06 22:56:03 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Aug 06 22:56:03 2011 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.open-osd.org/linux-open-osd\n\n* \u0027for-linus\u0027 of git://git.open-osd.org/linux-open-osd:\n ore: Make ore its own module\n exofs: Rename raid engine from exofs/ios.c \u003d\u003e ore\n exofs: ios: Move to a per inode components \u0026 device-table\n exofs: Move exofs specific osd operations out of ios.c\n exofs: Add offset/length to exofs_get_io_state\n exofs: Fix truncate for the raid-groups case\n exofs: Small cleanup of exofs_fill_super\n exofs: BUG: Avoid sbi realloc\n exofs: Remove pnfs-osd private definitions\n nfs_xdr: Move nfs4_string definition out of #ifdef CONFIG_NFS_V4\n" }, { "commit": "cf283ade08c454e884394a4720f22421dd33a715", "tree": "749bf95c36083fe35bdf020d71ab667283b486c4", "parents": [ "8ff660ab85f524bdc7652eb5d38aaef1d66aa9c7" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sat Aug 06 19:22:06 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sat Aug 06 19:36:19 2011 -0700" }, "message": "ore: Make ore its own module\n\nExport everything from ore need exporting. Change Kbuild and Kconfig\nto build ore.ko as an independent module. Import ore from exofs\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "8ff660ab85f524bdc7652eb5d38aaef1d66aa9c7", "tree": "c4a29cde4fc8654ae00e65cb520e13f9fe7f4e08", "parents": [ "9e9db45649eb5d3ee5622fdad741914ecf1016a0" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sat Aug 06 19:26:31 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sat Aug 06 19:36:18 2011 -0700" }, "message": "exofs: Rename raid engine from exofs/ios.c \u003d\u003e ore\n\nORE stands for \"Objects Raid Engine\"\n\nThis patch is a mechanical rename of everything that was in ios.c\nand its API declaration to an ore.c and an osd_ore.h header. The ore\nengine will later be used by the pnfs objects layout driver.\n\n* File ios.c \u003d\u003e ore.c\n\n* Declaration of types and API are moved from exofs.h to a new\n osd_ore.h\n\n* All used types are prefixed by ore_ from their exofs_ name.\n\n* Shift includes from exofs.h to osd_ore.h so osd_ore.h is\n independent, include it from exofs.h.\n\nOther than a pure rename there are no other changes. Next patch\nwill move the ore into it\u0027s own module and will export the API\nto be used by exofs and later the layout driver\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "9e9db45649eb5d3ee5622fdad741914ecf1016a0", "tree": "19ab9e1431e3d6535cef3f2cba6fcff12bb6ba6c", "parents": [ "85e44df4748670a1a7d8441b2d75843cdebc478a" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Fri Aug 05 15:06:04 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sat Aug 06 19:35:32 2011 -0700" }, "message": "exofs: ios: Move to a per inode components \u0026 device-table\n\nExofs raid engine was saving on memory space by having a single layout-info,\nsingle pid, and a single device-table, global to the filesystem. Then passing\na credential and object_id info at the io_state level, private for each\ninode. It would also devise this contraption of rotating the device table\nview for each inode-\u003eino to spread out the device usage.\n\nThis is not compatible with the pnfs-objects standard, demanding that\neach inode can have it\u0027s own layout-info, device-table, and each object\ncomponent it\u0027s own pid, oid and creds.\n\nSo: Bring exofs raid engine to be usable for generic pnfs-objects use by:\n\n* Define an exofs_comp structure that holds obj_id and credential info.\n\n* Break up exofs_layout struct to an exofs_components structure that holds a\n possible array of exofs_comp and the array of devices + the size of the\n arrays.\n\n* Add a \"comps\" parameter to get_io_state() that specifies the ids creds\n and device array to use for each IO.\n\n This enables to keep the layout global, but the device-table view, creds\n and IDs at the inode level. It only adds two 64bit to each inode, since\n some of these members already existed in another form.\n\n* ios raid engine now access layout-info and comps-info through the passed\n pointers. Everything is pre-prepared by caller for generic access of\n these structures and arrays.\n\nAt the exofs Level:\n\n* Super block holds an exofs_components struct that holds the device\n array, previously in layout. The devices there are in device-table\n order. The device-array is twice bigger and repeats the device-table\n twice so now each inode\u0027s device array can point to a random device\n and have a round-robin view of the table, making it compatible to\n previous exofs versions.\n\n* Each inode has an exofs_components struct that is initialized at\n load time, with it\u0027s own view of the device table IDs and creds.\n When doing IO this gets passed to the io_state together with the\n layout.\n\nWhile preforming this change. Bugs where found where credentials with the\nwrong IDs where used to access the different SB objects (super.c). As well\nas some dead code. It was never noticed because the target we use does not\ncheck the credentials.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "85e44df4748670a1a7d8441b2d75843cdebc478a", "tree": "c5bc0cdf7dad56cc6f3a38f99c88f62325a1e029", "parents": [ "e1042ba0991aab80ced34f7dade6ec25f22b4304" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon May 16 15:26:47 2011 +0300" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sat Aug 06 19:35:31 2011 -0700" }, "message": "exofs: Move exofs specific osd operations out of ios.c\n\nios.c will be moving to an external library, for use by the\nobjects-layout-driver. Remove from it some exofs specific functions.\n\nAlso g_attr_logical_length is used both by inode.c and ios.c\nmove definition to the later, to keep it independent\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "e1042ba0991aab80ced34f7dade6ec25f22b4304", "tree": "5953383f9235df91acfc2315a5c6fbdfb359ecf1", "parents": [ "16f75bb35d54b44356f496272c013f7ace5fa698" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Nov 16 20:09:58 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sat Aug 06 19:35:31 2011 -0700" }, "message": "exofs: Add offset/length to exofs_get_io_state\n\nIn future raid code we will need to know the IO offset/length\nand if it\u0027s a read or write to determine some of the array\nsizes we\u0027ll need.\n\nSo add a new exofs_get_rw_state() API for use when\nwriteing/reading. All other simple cases are left using the\nold way.\n\nThe major change to this is that now we need to call\nexofs_get_io_state later at inode.c::read_exec and\ninode.c::write_exec when we actually know these things. So this\npatch is kept separate so I can test things apart from other\nchanges.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "16f75bb35d54b44356f496272c013f7ace5fa698", "tree": "0fbbcf34fbbaed8e2c57ea2f1fd061dcbcd8f511", "parents": [ "9ce730475e1b950d78a69c1be3410109c103ac98" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Aug 03 20:44:16 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Aug 04 12:35:25 2011 -0700" }, "message": "exofs: Fix truncate for the raid-groups case\n\nIn the general raid-group case the truncate was wrong in that\nit did not also fix the object length of the neighboring groups.\n\nThere are two bad cases in the old code:\n1. Space that should be freed was not.\n2. If a file That was big is truncated small, then made bigger\n again, the holes would not contain zeros but could expose old data.\n (If the growing of the file expands to more than a full\n groups cycle + group size (\u003e S + T))\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "9ce730475e1b950d78a69c1be3410109c103ac98", "tree": "7bc785ad8990932b168a51036e39cadbb03bddfa", "parents": [ "6d4073e88132259485ef1b2c88daa5e50c95789c" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Aug 03 20:18:01 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Aug 04 12:35:23 2011 -0700" }, "message": "exofs: Small cleanup of exofs_fill_super\n\nSmall cleanup that unifies duplicated code used in both the\nerror and success cases\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "6d4073e88132259485ef1b2c88daa5e50c95789c", "tree": "04876cbe47e462bca7dad51ec33ccb29080d5680", "parents": [ "26ae93c2dc7152463d319c28768f242a11a54620" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Jul 27 17:51:53 2011 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Aug 04 12:35:20 2011 -0700" }, "message": "exofs: BUG: Avoid sbi realloc\n\nSince the beginning we realloced the sbi structure when a bigger\nthen one device table was specified. (I know that was really stupid).\n\nThen much later when \"register bdi\" was added (By Jens) it was\nregistering the pointer to sbi-\u003ebdi before the realloc.\n\nWe never saw this problem because up till now the realloc did not\ndo anything since the device table was small enough to fit in the\noriginal allocation. But once we starting testing with large device\ntables (Bigger then 28) we noticed the crash of writeback operating\non a deallocated pointer.\n\n* Avoid the all mess by allocating the device-table as a second array\n and get rid of the variable-sized structure and the rest of this\n mess.\n* Take the chance to clean near by structures and comments.\n* Add a needed dprint on startup to indicate the loaded layout.\n* Also move the bdi registration to the very end because it will\n only fail in a low memory, which will probably fail before hand.\n There are many more likely causes to not load before that. This\n way the error handling is made simpler. (Just doing this would be\n enough to fix the BUG)\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "26ae93c2dc7152463d319c28768f242a11a54620", "tree": "dd57560a10deeb9156227a54cd45194c5120e01e", "parents": [ "655b16128482fd12808f77a6799eea5419c93709" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Feb 02 15:56:53 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Aug 04 12:35:18 2011 -0700" }, "message": "exofs: Remove pnfs-osd private definitions\n\nNow that pnfs-osd has hit mainline we can remove exofs\u0027s\nprivate header. (And the FIXME comment)\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "02c24a82187d5a628c68edfe71ae60dc135cd178", "tree": "c8dbaba4d82e2b20ed4335910a564a1f7d90fcf6", "parents": [ "22735068d53c7115e384bc88dea95b17e76a6839" ], "author": { "name": "Josef Bacik", "email": "josef@redhat.com", "time": "Sat Jul 16 20:44:56 2011 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed Jul 20 20:47:59 2011 -0400" }, "message": "fs: push i_mutex and filemap_write_and_wait down into -\u003efsync() handlers\n\nBtrfs needs to be able to control how filemap_write_and_wait_range() is called\nin fsync to make it less of a painful operation, so push down taking i_mutex and\nthe calling of filemap_write_and_wait() down into the -\u003efsync() handlers. Some\nfile systems can drop taking the i_mutex altogether it seems, like ext3 and\nocfs2. For correctness sake I just pushed everything down in all cases to make\nsure that we keep the current behavior the same for everybody, and then each\nindividual fs maintainer can make up their mind about what to do from there.\nThanks,\n\nAcked-by: Jan Kara \u003cjack@suse.cz\u003e\nSigned-off-by: Josef Bacik \u003cjosef@redhat.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "a9049376ee05bf966bfe2b081b5071326856890a", "tree": "efb3cbfc7760537f201bb28dacbb0d39ec39f04c", "parents": [ "0c1aa9a952c3608eb17bf990466f1491d1ee8b6c" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Jul 08 21:20:11 2011 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed Jul 20 01:44:26 2011 -0400" }, "message": "make d_splice_alias(ERR_PTR(err), dentry) \u003d ERR_PTR(err)\n\n... and simplify the living hell out of callers\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "a803b8067e317832d6a251c5b0486e36a4f81922", "tree": "db7a40edece0e43f870bc33776bb1a7e4fb13006", "parents": [ "1b71fe2efa31cd18c865db474a4cd473b6ab5281" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Jul 08 20:56:55 2011 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sun Jul 17 23:20:29 2011 -0400" }, "message": "fix exofs -\u003eget_parent()\n\nNULL is not a possible return value for that method, TYVM...\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "25985edcedea6396277003854657b5f3cb31a628", "tree": "f026e810210a2ee7290caeb737c23cb6472b7c38", "parents": [ "6aba74f2791287ec407e0f92487a725a25908067" ], "author": { "name": "Lucas De Marchi", "email": "lucas.demarchi@profusion.mobi", "time": "Wed Mar 30 22:57:33 2011 -0300" }, "committer": { "name": "Lucas De Marchi", "email": "lucas.demarchi@profusion.mobi", "time": "Thu Mar 31 11:26:23 2011 -0300" }, "message": "Fix common misspellings\n\nFixes generated by \u0027codespell\u0027 and manually reviewed.\n\nSigned-off-by: Lucas De Marchi \u003clucas.demarchi@profusion.mobi\u003e\n" }, { "commit": "6c5103890057b1bb781b26b7aae38d33e4c517d8", "tree": "e6e57961dcddcb5841acb34956e70b9dc696a880", "parents": [ "3dab04e6978e358ad2307bca563fabd6c5d2c58b", "9d2e157d970a73b3f270b631828e03eb452d525e" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Mar 24 10:16:26 2011 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Mar 24 10:16:26 2011 -0700" }, "message": "Merge branch \u0027for-2.6.39/core\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-2.6.39/core\u0027 of git://git.kernel.dk/linux-2.6-block: (65 commits)\n Documentation/iostats.txt: bit-size reference etc.\n cfq-iosched: removing unnecessary think time checking\n cfq-iosched: Don\u0027t clear queue stats when preempt.\n blk-throttle: Reset group slice when limits are changed\n blk-cgroup: Only give unaccounted_time under debug\n cfq-iosched: Don\u0027t set active queue in preempt\n block: fix non-atomic access to genhd inflight structures\n block: attempt to merge with existing requests on plug flush\n block: NULL dereference on error path in __blkdev_get()\n cfq-iosched: Don\u0027t update group weights when on service tree\n fs: assign sb-\u003es_bdi to default_backing_dev_info if the bdi is going away\n block: Require subsystems to explicitly allocate bio_set integrity mempool\n jbd2: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging\n jbd: finish conversion from WRITE_SYNC_PLUG to WRITE_SYNC and explicit plugging\n fs: make fsync_buffers_list() plug\n mm: make generic_writepages() use plugging\n blk-cgroup: Add unaccounted time to timeslice_used.\n block: fixup plugging stubs for !CONFIG_BLOCK\n block: remove obsolete comments for blkdev_issue_zeroout.\n blktrace: Use rq-\u003ecmd_flags directly in blk_add_trace_rq.\n ...\n\nFix up conflicts in fs/{aio.c,super.c}\n" }, { "commit": "a49fb4c3d035ab516507b31ec3bd49263caee14d", "tree": "aa44d448190dacad75b30fe86c49a72ad9cecc0d", "parents": [ "1cea312ad49d9cb964179a784fedb1fcfe396283" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Feb 07 18:12:15 2011 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Mar 15 15:02:52 2011 +0200" }, "message": "exofs: deprecate the commands pending counter\n\nOne leftover from the days of IBM\u0027s original code, is an SB counter\nthat counts in-flight asynchronous commands. And a piece of code that\nwaits for the counter to reach zero at unmount. I guess it might have\nbeen needed then, cause of some reference missing or something.\n\nI\u0027m not removing it yet but am putting a warning message if ever this\ncounter triggers at unmount. If I\u0027ll never see it triggers or reported\nI\u0027ll remove the counter for good.\n(I had this print as a debug output for a long time and never had it\n trigger)\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "1cea312ad49d9cb964179a784fedb1fcfe396283", "tree": "27c45af006b48b1a079698605ea9007398f652b5", "parents": [ "9ed96484311b89360b80a4181d856cbdb21630fd" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Feb 03 17:53:25 2011 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Mar 15 15:02:51 2011 +0200" }, "message": "exofs: Write sbi-\u003es_nextid as part of the Create command\n\nBefore when creating a new inode, we\u0027d set the sb-\u003es_dirt flag,\nand sometime later the system would write out s_nextid as part\nof the sb_info. Also on inode sync we would force the sb sync\nas well.\n\nDefine the s_nextid as a new partition attribute and set it\nevery time we create a new object.\nAt mount we read it from it\u0027s new place.\n\nWe now never set sb-\u003es_dirt anywhere in exofs. write_super\nis actually never called. The call to exofs_write_super from\nexofs_put_super is also removed because the VFS always calls\n-\u003esync_fs before calling -\u003eput_super twice.\n\nTo stay backward-and-forward compatible we also write the old\ns_nextid in the super_block object at unmount, and support zero\nlength attribute on mount.\n\nThis also fixes a BUG where in layouts when group_width was not\na divisor of EXOFS_SUPER_ID (0x10000) the s_nextid was not read\nfrom the device it was written to. Because of the sliding window\nlayout trick, and because the read was always done from the 0\ndevice but the write was done via the raid engine that might slide\nthe device view. Now we read and write through the raid engine.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "9ed96484311b89360b80a4181d856cbdb21630fd", "tree": "ef372f43e6bfdf86d273d80491e7de801b69395f", "parents": [ "66cd6cad4919f980dd21307d0150ff251762a264" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Jan 31 14:32:14 2011 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Mar 15 15:02:51 2011 +0200" }, "message": "exofs: Add option to mount by osdname\n\nIf /dev/osd* devices are shuffled because more devices\nwhere added, and/or login order has changed. It is hard to\nmount the FS you want.\n\nAdd an option to mount by osdname. osdname is any osd-device\u0027s\nosdname as specified to the mkfs.exofs command when formatting\nthe osd-devices.\nThe new mount format is:\n\tOPT\u003d\"osdname\u003d$UUID0,pid\u003d$PID,_netdev\"\n\tmount -t exofs -o $OPT $DEV_OSD0 $MOUNTDIR\n\nif \"osdname\u003d\" is specified in options above $DEV_OSD0 is\nignored and can be empty.\n\nAlso while at it: Removed some old unused Opt_* enums.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "66cd6cad4919f980dd21307d0150ff251762a264", "tree": "4f2d9dc0f9070ce829d03097542e7968e02df41a", "parents": [ "97178b7b6c84bd14660b89474d27931a1ea65c66" ], "author": { "name": "bharrosh@panasas.com", "email": "bharrosh@panasas.com", "time": "Thu Oct 07 14:28:18 2010 -0400" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Mar 15 15:02:50 2011 +0200" }, "message": "exofs: Override read-ahead to align on stripe_size\n\n* Set all inode-\u003ei_mapping-\u003ebacking_dev_info to point to\n the per super-block sb-\u003es_bdi.\n\n* Calculating a read_ahead that is:\n - preferable 2 stripes long\n (Future patch will add a mount option to override this)\n - Minimum 128K aligned up to stripe-size\n - Caped to maximum-IO-sizes round down to stripe_size.\n (Max sizes are governed by max bio-size that fits in a page\n times number-of-devices)\n\nCC: Marc Dionne \u003cmarc.c.dionne@gmail.com\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "97178b7b6c84bd14660b89474d27931a1ea65c66", "tree": "b763cc48e6456b944e7bed877ad2a996809124eb", "parents": [ "a8f1418f9e9bd4c487a7b703ff26c5dd5ceb2bf3" ], "author": { "name": "Nick Piggin", "email": "npiggin@kernel.dk", "time": "Thu Nov 25 12:47:15 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Mar 15 15:02:50 2011 +0200" }, "message": "exofs: simple fsync race fix\n\nIt is incorrect to test inode dirty bits without participating in the inode\nwriteback protocol. Inode writeback sets I_SYNC and clears I_DIRTY_?, then\nwrites out the particular bits, then clears I_SYNC when it is done. BTW. it\nmay not completely write all pages out, so I_DIRTY_PAGES would get set\nagain.\n\nThis is a standard pattern used throughout the kernel\u0027s writeback caches\n(I_SYNC ~\u003d I_WRITEBACK, if that makes it clearer).\n\nAnd so it is not possible to determine an inode\u0027s dirty status just by\nchecking I_DIRTY bits. Especially not for the purpose of data integrity\nsyncs.\n\nMissing the check for these bits means that fsync can complete while\nwriteback to the inode is underway. Inode writeback functions get this\nright, so call into them rather than try to shortcut things by testing\ndirty state improperly.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@kernel.dk\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "a8f1418f9e9bd4c487a7b703ff26c5dd5ceb2bf3", "tree": "9d72e1be99cf2eb4c8a35cfa8ac3df69dfbca01a", "parents": [ "0a935519cca83f26dc15e7577fa6c2b39606a4ac" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Nov 22 18:02:45 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Mar 15 15:02:49 2011 +0200" }, "message": "exofs: Optimize read_4_write\n\nDon\u0027t attempt a read passed i_size, just zero the page and be\ndone with it.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "0a935519cca83f26dc15e7577fa6c2b39606a4ac", "tree": "0360b9e15285425d90484ced64d8944810702f52", "parents": [ "2c722c9a47d1369e2685b85288e78c469a081238" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Oct 26 17:52:41 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Mar 15 15:00:27 2011 +0200" }, "message": "exofs: Trivial: fix some indentation and debug prints\n\nI stumbled on some of these prints in log files so, might\njust submit the fixes.\n\n* All i_ino prints in exofs should be hex\n* All OSD_ERR prints should end with a \"\\n\"\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "2c722c9a47d1369e2685b85288e78c469a081238", "tree": "2acb65a6c2ba1d756b317e6ab7ee9624851b83ed", "parents": [ "521cb40b0c44418a4fd36dc633f575813d59a43d" ], "author": { "name": "Tobias Klauser", "email": "tklauser@distanz.ch", "time": "Thu Dec 09 15:55:21 2010 +0100" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Mar 15 12:33:42 2011 +0200" }, "message": "exofs: Remove redundant unlikely()\n\nIS_ERR() already implies unlikely(), so it can be omitted here.\n\nSigned-off-by: Tobias Klauser \u003ctklauser@distanz.ch\u003e\n" }, { "commit": "7eaceaccab5f40bbfda044629a6298616aeaed50", "tree": "33954d12f63e25a47eb6d86ef3d3d0a5e62bf752", "parents": [ "73c101011926c5832e6e141682180c4debe2cf45" ], "author": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Thu Mar 10 08:52:07 2011 +0100" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Thu Mar 10 08:52:07 2011 +0100" }, "message": "block: remove per-queue plugging\n\nCode has been converted over to the new explicit on-stack plugging,\nand delay users have been converted to use the new API for that.\nSo lets kill off the old plugging along with aops-\u003esync_page().\n\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "babfe56046885749b6a90a3c4409219a1f16cf48", "tree": "67c9c4f3a03902a94036e573a3d82fe290eeac4d", "parents": [ "30eb43d31478f0fca28423623f3ec6af13f845fa" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed Mar 02 16:42:38 2011 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu Mar 03 01:28:17 2011 -0500" }, "message": "exofs: i_nlink races in rename()\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "0b0abeaf3d30cec03ac6497fe978b8f7edecc5ae", "tree": "6797384d6bbf617b6b1a6d5bb0a307c28c52798c", "parents": [ "f2f1756d7de37cc8ca17705c5bc3dfcbfb589ab9" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Feb 02 21:02:12 2011 +0200" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Feb 02 17:53:27 2011 -0800" }, "message": "Revert \"exofs: Set i_mapping-\u003ebacking_dev_info anyway\"\n\nThis reverts commit 115e19c53501edc11f730191f7f047736815ae3d.\n\nApparently setting inode-\u003ebdi to one\u0027s own sb-\u003es_bdi stops VFS from\nsending *read-aheads*. This problem was bisected to this commit. A\nrevert fixes it. I\u0027ll investigate farther why is this happening for the\nnext Kernel, but for now a revert.\n\nI\u0027m sending to stable@kernel.org as well, since it exists also in\n2.6.37. 2.6.36 is good and does not have this patch.\n\nCC: Stable Tree \u003cstable@kernel.org\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fa0d7e3de6d6fc5004ad9dea0dd6b286af8f03e9", "tree": "203e0f73883e4c26b5597e36042386a1237dab35", "parents": [ "77812a1ef139d84270d27faacc0630c887411013" ], "author": { "name": "Nick Piggin", "email": "npiggin@kernel.dk", "time": "Fri Jan 07 17:49:49 2011 +1100" }, "committer": { "name": "Nick Piggin", "email": "npiggin@kernel.dk", "time": "Fri Jan 07 17:50:26 2011 +1100" }, "message": "fs: icache RCU free inodes\n\nRCU free the struct inode. This will allow:\n\n- Subsequent store-free path walking patch. The inode must be consulted for\n permissions when walking, so an RCU inode reference is a must.\n- sb_inode_list_lock to be moved inside i_lock because sb list walkers who want\n to take i_lock no longer need to take sb_inode_list_lock to walk the list in\n the first place. This will simplify and optimize locking.\n- Could remove some nested trylock loops in dcache code\n- Could potentially simplify things a bit in VM land. Do not need to take the\n page lock to follow page-\u003emapping.\n\nThe downsides of this is the performance cost of using RCU. In a simple\ncreat/unlink microbenchmark, performance drops by about 10% due to inability to\nreuse cache-hot slab objects. As iterations increase and RCU freeing starts\nkicking over, this increases to about 20%.\n\nIn cases where inode lifetimes are longer (ie. many inodes may be allocated\nduring the average life span of a single inode), a lot of this cache reuse is\nnot applicable, so the regression caused by this patch is smaller.\n\nThe cache-hot regression could largely be avoided by using SLAB_DESTROY_BY_RCU,\nhowever this adds some complexity to list walking and store-free path walking,\nso I prefer to implement this at a later date, if it is shown to be a win in\nreal situations. I haven\u0027t found a regression in any non-micro benchmark so I\ndoubt it will be a problem.\n\nSigned-off-by: Nick Piggin \u003cnpiggin@kernel.dk\u003e\n" }, { "commit": "3c26ff6e499ee7e6f9f2bc7da5f2f30d80862ecf", "tree": "bd758d7f15f24aed225a64de77cc535785c50f96", "parents": [ "fc14f2fef682df677d64a145256dbd263df2aa7b" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sun Jul 25 11:46:36 2010 +0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Oct 29 04:16:31 2010 -0400" }, "message": "convert get_sb_nodev() users\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "7de9c6ee3ecffd99e1628e81a5ea5468f7581a1f", "tree": "88787e77ba8a253d0a26aeda4bd5e58532d592e0", "parents": [ "646ec4615cd05972581c9c5342ed7a1e77df17bb" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Sat Oct 23 11:11:40 2010 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Oct 25 21:26:11 2010 -0400" }, "message": "new helper: ihold()\n\nClones an existing reference to inode; caller must already hold one.\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "c37650161a53c01ddd88587675f9a4adc909a73e", "tree": "85821998de9a6723dedc42488b9491db9692d1e3", "parents": [ "81fca444001e5a41ab80ce8cf9a5734c00ec6546" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Wed Oct 06 10:48:20 2010 +0200" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Oct 25 21:18:19 2010 -0400" }, "message": "fs: add sync_inode_metadata\n\nAdd a new helper to write out the inode using the writeback code,\nthat is including the correct dirty bit and list manipulation. A few\nof filesystems already opencode this, and a lot of others should be\nusing it instead of using write_inode_now which also writes out the\ndata.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "fe2fd9ed5bf184f797412be8b86f4589d1b77bb8", "tree": "45677902196a26d12a9eb56a663e0a9787cc2cae", "parents": [ "571f7f46bf367b29f574ca51a9ca1db5035602bb" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sat Oct 16 19:14:01 2010 +1100" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 25 18:03:07 2010 +0200" }, "message": "exofs: Remove inode-\u003ei_count manipulation in exofs_new_inode\n\nexofs_new_inode() was incrementing the inode-\u003ei_count and\ndecrementing it in create_done(), in a bad attempt to make sure\nthe inode will still be there when the asynchronous create_done()\nfinally arrives. This was very stupid because iput() was not called,\nand if it was actually needed, it would leak the inode.\n\nHowever all this is not needed, because at exofs_evict_inode()\nwe already wait for create_done() by waiting for the\nobject_created event. Therefore remove the superfluous ref counting\nand just Thicken the comment at exofs_evict_inode() a bit.\n\nWhile at it change places that open coded wait_obj_created()\nto call the already available wrapper.\n\nCC: Dave Chinner \u003cdchinner@redhat.com\u003e\nCC: Christoph Hellwig \u003chch@lst.de\u003e\nCC: Nick Piggin \u003cnpiggin@kernel.dk\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "571f7f46bf367b29f574ca51a9ca1db5035602bb", "tree": "39c8557d005982f7212c073b43027672c8e8e7ff", "parents": [ "115e19c53501edc11f730191f7f047736815ae3d" ], "author": { "name": "Joe Perches", "email": "joe@perches.com", "time": "Thu Oct 21 22:17:17 2010 -0700" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 25 18:02:49 2010 +0200" }, "message": "fs/exofs: typo fix of faild to failed\n\nSigned-off-by: Joe Perches \u003cjoe@perches.com\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "115e19c53501edc11f730191f7f047736815ae3d", "tree": "eddb72bc6ed53acf0bba8a98ebbda438b63997ae", "parents": [ "7aebf4106b4263667696485303af498aa1eea9ef" ], "author": { "name": "Boaz Harrosh", "email": "Boaz Harrosh bharrosh@panasas.com", "time": "Thu Oct 07 14:28:18 2010 -0400" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 18 20:16:02 2010 +0200" }, "message": "exofs: Set i_mapping-\u003ebacking_dev_info anyway\n\nThough it has been promised that inode-\u003ei_mapping-\u003ebacking_dev_info\nis not used and the supporting code is fine. Until the pointer\nwill default to NULL, I\u0027d rather it points to the correct thing\nregardless.\n\nAt least for future infrastructure coder it is a clear indication\nof where are the key points that inodes are initialized.\nI know because it took me time to find this out.\n\nSigned-off-by: Boaz Harrosh \u003cBoaz Harrosh bharrosh@panasas.com\u003e\n" }, { "commit": "7aebf4106b4263667696485303af498aa1eea9ef", "tree": "988dcd7a583f4c1d23032f2c866a0b997db2e6bb", "parents": [ "cd07202cc8262e1669edff0d97715f3dd9260917" ], "author": { "name": "Boaz Harrosh", "email": "Boaz Harrosh bharrosh@panasas.com", "time": "Wed Oct 13 12:55:43 2010 -0400" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Oct 18 20:16:02 2010 +0200" }, "message": "exofs: Cleaup read path in regard with read_for_write\n\nLast BUG fix added a flag to the the page_collect structure\nto communicate with readpage_strip. This calls for a clean up\nremoving that flag\u0027s reincarnations in the read functions\nparameters.\n\nSigned-off-by: Boaz Harrosh \u003cBoaz Harrosh bharrosh@panasas.com\u003e\n" }, { "commit": "f17b1f9f1a5882e486aad469b9ac4cb18581707f", "tree": "fc8e1025ea9871d7ebe1aad63ce0c5fcb2bdf3ca", "parents": [ "cb655d0f3d57c23db51b981648e452988c0223f9" ], "author": { "name": "Boaz Harrosh", "email": "Boaz Harrosh bharrosh@panasas.com", "time": "Thu Oct 07 13:37:51 2010 -0400" }, "committer": { "name": "Boaz Harrosh", "email": "Boaz Harrosh bharrosh@panasas.com", "time": "Fri Oct 08 11:26:54 2010 -0400" }, "message": "exofs: Fix double page_unlock BUG in write_begin/end\n\nThis BUG is there since the first submit of the code, but only triggered\nin last Kernel. It\u0027s timing related do to the asynchronous object-creation\nbehaviour of exofs. (Which should be investigated farther)\n\nThe bug is obvious hence the fixed.\n\nSigned-off-by: Boaz Harrosh \u003cBoaz Harrosh bharrosh@panasas.com\u003e\n" }, { "commit": "bf25db365428dbd182768baa9850bef7afaac80d", "tree": "4373037b00459643f0d661672eb6688f80800d72", "parents": [ "682c30ed2165d5694a414d31eac7c63ac5700fb0", "5002dd18c5940ce63b917d84f2b852c3b96009bb" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Aug 11 09:19:43 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Aug 11 09:19:43 2010 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.open-osd.org/linux-open-osd\n\n* \u0027for-linus\u0027 of git://git.open-osd.org/linux-open-osd:\n exofs: Fix groups code when num_devices is not divisible by group_width\n exofs: Remove useless optimization\n exofs: exofs_file_fsync and exofs_file_flush correctness\n exofs: Remove superfluous dependency on buffer_head and writeback\n" }, { "commit": "2f9e825d3e0e2b407ae8f082de5c00afcf7378fb", "tree": "f8b3ee40674ce4acd5508a0a0bf52a30904caf6c", "parents": [ "7ae0dea900b027cd90e8a3e14deca9a19e17638b", "de75d60d5ea235e6e09f4962ab22541ce0fe176a" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 10 15:22:42 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Aug 10 15:22:42 2010 -0700" }, "message": "Merge branch \u0027for-2.6.36\u0027 of git://git.kernel.dk/linux-2.6-block\n\n* \u0027for-2.6.36\u0027 of git://git.kernel.dk/linux-2.6-block: (149 commits)\n block: make sure that REQ_* types are seen even with CONFIG_BLOCK\u003dn\n xen-blkfront: fix missing out label\n blkdev: fix blkdev_issue_zeroout return value\n block: update request stacking methods to support discards\n block: fix missing export of blk_types.h\n writeback: fix bad _bh spinlock nesting\n drbd: revert \"delay probes\", feature is being re-implemented differently\n drbd: Initialize all members of sync_conf to their defaults [Bugz 315]\n drbd: Disable delay probes for the upcomming release\n writeback: cleanup bdi_register\n writeback: add new tracepoints\n writeback: remove unnecessary init_timer call\n writeback: optimize periodic bdi thread wakeups\n writeback: prevent unnecessary bdi threads wakeups\n writeback: move bdi threads exiting logic to the forker thread\n writeback: restructure bdi forker loop a little\n writeback: move last_active to bdi\n writeback: do not remove bdi from bdi_list\n writeback: simplify bdi code a little\n writeback: do not lose wake-ups in bdi threads\n ...\n\nFixed up pretty trivial conflicts in drivers/block/virtio_blk.c and\ndrivers/scsi/scsi_error.c as per Jens.\n" }, { "commit": "4ec70c9b46b032e7f1b41b543c607d6a33b78a1a", "tree": "ab2f2509a13845130fa0a3a28f4a9944bb761e05", "parents": [ "845a2cc0507055278e0fa722ed0f8c791b7401dd" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Jun 07 11:42:26 2010 -0400" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Aug 09 16:48:24 2010 -0400" }, "message": "convert exofs to -\u003eevict_inode()\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "2f246fd0f126f3b3c23a4e6b7109350e83356bd6", "tree": "10cc6c830e4ffcc116faaf886e72dd3f0b73d849", "parents": [ "41cce647f8dbe26941bed2158fad0839aab7a294" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Jun 09 18:23:18 2010 +0300" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Aug 09 16:47:41 2010 -0400" }, "message": "exofs: New truncate sequence\n\nThese changes are crafted based on the similar\nconversion done to ext2 by Nick Piggin.\n\n* Remove the deprecated -\u003etruncate vector. Let exofs_setattr\n take care of on-disk size updates.\n* Call truncate_pagecache on the unused pages if\n write_begin/end fails.\n* Cleanup exofs_delete_inode that did stupid inode\n writes and updates on an inode that will be\n removed.\n* And finally get rid of exofs_get_block. We never\n had any blocks it was all for calling nobh_truncate_page.\n nobh_truncate_page is not actually needed in exofs since\n the last page is complete and gone, just like all the other\n pages. There is no partial blocks in exofs.\n\nI\u0027ve tested with this patch, and there are no apparent\nfailures, so far.\n\nCC: Nick Piggin \u003cnpiggin@suse.de\u003e\nCC: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "1025774ce411f2bd4b059ad7b53f0003569b74fa", "tree": "2be221c205cb5579652a6063e8ee27d1c72d1bbd", "parents": [ "eef2380c187890816b73b1a4cb89a09203759469" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Fri Jun 04 11:30:02 2010 +0200" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Mon Aug 09 16:47:37 2010 -0400" }, "message": "remove inode_setattr\n\nReplace inode_setattr with opencoded variants of it in all callers. This\nmoves the remaining call to vmtruncate into the filesystem methods where it\ncan be replaced with the proper truncate sequence.\n\nIn a few cases it was obvious that we would never end up calling vmtruncate\nso it was left out in the opencoded variant:\n\n spufs: explicitly checks for ATTR_SIZE earlier\n btrfs,hugetlbfs,logfs,dlmfs: explicitly clears ATTR_SIZE earlier\n ufs: contains an opencoded simple_seattr + truncate that sets the filesize just above\n\nIn addition to that ncpfs called inode_setattr with handcrafted iattrs,\nwhich allowed to trim down the opencoded variant.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "7b6d91daee5cac6402186ff224c3af39d79f4a0e", "tree": "b1518cf0b6c301178e0a320f80610cd5b3aa7625", "parents": [ "33659ebbae262228eef4e0fe990f393d1f0ed941" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Sat Aug 07 18:20:39 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jaxboe@fusionio.com", "time": "Sat Aug 07 18:20:39 2010 +0200" }, "message": "block: unify flags for struct bio and struct request\n\nRemove the current bio flags and reuse the request flags for the bio, too.\nThis allows to more easily trace the type of I/O from the filesystem\ndown to the block driver. There were two flags in the bio that were\nmissing in the requests: BIO_RW_UNPLUG and BIO_RW_AHEAD. Also I\u0027ve\nrenamed two request flags that had a superflous RW in them.\n\nNote that the flags are in bio.h despite having the REQ_ name - as\nblkdev.h includes bio.h that is the only way to go for now.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Jens Axboe \u003cjaxboe@fusionio.com\u003e\n" }, { "commit": "5002dd18c5940ce63b917d84f2b852c3b96009bb", "tree": "dcba726c5e705c787c00f7fac67201a82e06191a", "parents": [ "6e31609b1dcd595d7e4676ce62323532b29e8999" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Aug 02 20:06:46 2010 +0300" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Aug 04 13:17:58 2010 +0300" }, "message": "exofs: Fix groups code when num_devices is not divisible by group_width\n\nThere is a bug when num_devices is not divisible by group_width * mirrors.\nWe would not return to the proper device and offset when looping on to the\nnext group.\n\nThe fix makes code simpler actually.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "6e31609b1dcd595d7e4676ce62323532b29e8999", "tree": "1d43b7e9affee41df43db3657b50058da5645732", "parents": [ "b2848349296f3428850eb34c3a52d586f48d4b04" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Jul 29 17:08:13 2010 +0300" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Aug 04 13:17:57 2010 +0300" }, "message": "exofs: Remove useless optimization\n\nWe used to compact all used devices in an IO to the beginning\nof the device array in an io_state. And keep a last device used\nso in later loops we don\u0027t iterate on all device slots. This\ndoes not prevent us from checking if slots are empty since in\nreads we only read from a single mirror and jump to the next\nmirror-set.\n\nThis optimization is marginal, and needlessly complicates the\ncode. Specially when we will later want to support raid/456\nwith same abstract code. So remove the distinction between\n\"dev\" and \"comp\". Only \"dev\" is used both as the device used\nand as the index (component) in the device array.\n\n[Note that now the io_state-\u003edev member is redundant but I\n keep it because I might want to optimize by only IOing a\n single group, though keeping a group_width*mirrors devices\n in io_state, we now keep num-devices in each io_state]\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "b2848349296f3428850eb34c3a52d586f48d4b04", "tree": "481c44078de9425495fbd7201d6d39f89e35d206", "parents": [ "85dc7878c6c2277de2eda2c4d1b11ea5c5b1068a" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon May 31 18:02:39 2010 +0300" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Aug 04 13:17:56 2010 +0300" }, "message": "exofs: exofs_file_fsync and exofs_file_flush correctness\n\nAs per Christoph advise: no need to call filemap_write_and_wait().\nIn exofs all metadata is at the inode so just writing the inode is\nall is needed. -\u003efsync implies this must be done synchronously.\n\nBut now exofs_file_fsync can not be used by exofs_file_flush.\nvfs_fsync() should do that job correctly.\n\nFIXME: remove the sb_sync and fix that sb_update better.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "85dc7878c6c2277de2eda2c4d1b11ea5c5b1068a", "tree": "dde1a55f77069b824b796420b1510b2547118cd3", "parents": [ "3a09b1be53d23df780a0cd0e4087a05e2ca4a00c" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon May 31 18:55:43 2010 +0300" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Wed Aug 04 13:17:55 2010 +0300" }, "message": "exofs: Remove superfluous dependency on buffer_head and writeback\n\nexofs_releasepage \u0026\u0026 exofs_invalidatepage are never called.\nLeave the WARN_ONs but remove any code. Remove the\n\ncleanup other stale #includes.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "7ea8085910ef3dd4f3cad6845aaa2b580d39b115", "tree": "d9c1edb5906f943f7d70bfb4b65106e29772d379", "parents": [ "cc967be54710d97c05229b2e5ba2d00df84ddd64" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Wed May 26 17:53:25 2010 +0200" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Thu May 27 22:05:02 2010 -0400" }, "message": "drop unused dentry argument to -\u003efsync\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "0163916f1db7f345963dad1af78b7628c759c6ee", "tree": "c33e3551b7825e8700db65b8b27869f6f7d45c72", "parents": [ "a69eee4988752c7196677958b4ed8f4c2b28499a", "ddf08f4b90a413892bbb9bb2e8a57aed991cd47d" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 24 07:57:41 2010 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon May 24 07:57:41 2010 -0700" }, "message": "Merge branch \u0027for-linus\u0027 of git://git.open-osd.org/linux-open-osd\n\n* \u0027for-linus\u0027 of git://git.open-osd.org/linux-open-osd:\n exofs: confusion between kmap() and kmap_atomic() api\n exofs: Add default address_space_operations\n" }, { "commit": "e00117f14f68d9e54c8aa3d52ebdc76cdbbc4f87", "tree": "150ee8e968cef8bf448aaeff258a36c790db8856", "parents": [ "ecc11fabf7ce16309112afe68fac466193ee7520" ], "author": { "name": "Dmitry Monakhov", "email": "dmonakhov@openvz.org", "time": "Thu Mar 04 17:31:48 2010 +0300" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri May 21 18:31:23 2010 -0400" }, "message": "exofs: replace inode uid,gid,mode initialization with helper function\n\nAck-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nSigned-off-by: Dmitry Monakhov \u003cdmonakhov@openvz.org\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "ddf08f4b90a413892bbb9bb2e8a57aed991cd47d", "tree": "aa17308fb0ad06898111a8356ebe702522e5a6d8", "parents": [ "200b0700420a78c3ade543761f0901985f41f96b" ], "author": { "name": "Dan Carpenter", "email": "error27@gmail.com", "time": "Fri May 07 11:05:33 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon May 17 13:50:58 2010 +0300" }, "message": "exofs: confusion between kmap() and kmap_atomic() api\n\nFor kmap_atomic() we call kunmap_atomic() on the returned pointer.\nThat\u0027s different from kmap() and kunmap() and so it\u0027s easy to get them\nbackwards.\n\nCc: Stable \u003cstable@kernel.org\u003e\nSigned-off-by: Dan Carpenter \u003cerror27@gmail.com\u003e\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "200b0700420a78c3ade543761f0901985f41f96b", "tree": "521fd32425502856bf38d81e73f4cdf49103a80f", "parents": [ "e40152ee1e1c7a63f4777791863215e3faa37a86" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Mar 22 11:23:40 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon May 17 13:50:50 2010 +0300" }, "message": "exofs: Add default address_space_operations\n\nAll vectors of address_space_operations should be initialized\nby the filesystem. Add the missing parts.\n\nThis is actually an optimization, by using\n__set_page_dirty_nobuffers. The default, in case of NULL,\nwould be __set_page_dirty_buffers which has these extar if(s).\n\n.releasepage \u0026\u0026 .invalidatepage should both not be called\nbecause page_private() is NULL in exofs. Put a WARN_ON if\nthey are called, to indicate the Kernel has changed in this\nregard, if when it does.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "a36fed12a4d980eebb2e67b87ea30ad090238cff", "tree": "ff56582ba7ccca5d303b909c146032013bf047d0", "parents": [ "dfad53d48e32cd0e10eab98e986c76cdd957600f" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Apr 29 13:38:00 2010 +0300" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Apr 29 07:59:16 2010 -0700" }, "message": "exofs: Fix \"add bdi backing to mount session\" fall out\n\nCommit b3d0ab7e60d1865bb6f6a79a77aaba22f2543236 (\"exofs: add bdi backing\nto mount session\") has a bug in the placement of the bdi member at\nstruct exofs_sb_info. The layout member must be kept last.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\nAcked-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "b3d0ab7e60d1865bb6f6a79a77aaba22f2543236", "tree": "bd770d63b01998b8ad1ee0f9fc463465b3586e8a", "parents": [ "9df9c8b930156a2f9ce2b2ae66acb14bee2663f5" ], "author": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Apr 22 12:26:04 2010 +0200" }, "committer": { "name": "Jens Axboe", "email": "jens.axboe@oracle.com", "time": "Thu Apr 22 12:26:04 2010 +0200" }, "message": "exofs: add bdi backing to mount session\n\nThis ensures that dirty data gets flushed properly.\n\nSigned-off-by: Jens Axboe \u003cjens.axboe@oracle.com\u003e\n" }, { "commit": "5a0e3ad6af8660be21ca98a971cd00f331318c05", "tree": "5bfb7be11a03176a87296a43ac6647975c00a1d1", "parents": [ "ed391f4ebf8f701d3566423ce8f17e614cde9806" ], "author": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Wed Mar 24 17:04:11 2010 +0900" }, "committer": { "name": "Tejun Heo", "email": "tj@kernel.org", "time": "Tue Mar 30 22:02:32 2010 +0900" }, "message": "include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h\n\npercpu.h is included by sched.h and module.h and thus ends up being\nincluded when building most .c files. percpu.h includes slab.h which\nin turn includes gfp.h making everything defined by the two files\nuniversally available and complicating inclusion dependencies.\n\npercpu.h -\u003e slab.h dependency is about to be removed. Prepare for\nthis change by updating users of gfp and slab facilities include those\nheaders directly instead of assuming availability. As this conversion\nneeds to touch large number of source files, the following script is\nused as the basis of conversion.\n\n http://userweb.kernel.org/~tj/misc/slabh-sweep.py\n\nThe script does the followings.\n\n* Scan files for gfp and slab usages and update includes such that\n only the necessary includes are there. ie. if only gfp is used,\n gfp.h, if slab is used, slab.h.\n\n* When the script inserts a new include, it looks at the include\n blocks and try to put the new include such that its order conforms\n to its surrounding. It\u0027s put in the include block which contains\n core kernel includes, in the same order that the rest are ordered -\n alphabetical, Christmas tree, rev-Xmas-tree or at the end if there\n doesn\u0027t seem to be any matching order.\n\n* If the script can\u0027t find a place to put a new include (mostly\n because the file doesn\u0027t have fitting include block), it prints out\n an error message indicating which .h file needs to be added to the\n file.\n\nThe conversion was done in the following steps.\n\n1. The initial automatic conversion of all .c files updated slightly\n over 4000 files, deleting around 700 includes and adding ~480 gfp.h\n and ~3000 slab.h inclusions. The script emitted errors for ~400\n files.\n\n2. Each error was manually checked. Some didn\u0027t need the inclusion,\n some needed manual addition while adding it to implementation .h or\n embedding .c file was more appropriate for others. This step added\n inclusions to around 150 files.\n\n3. The script was run again and the output was compared to the edits\n from #2 to make sure no file was left behind.\n\n4. Several build tests were done and a couple of problems were fixed.\n e.g. lib/decompress_*.c used malloc/free() wrappers around slab\n APIs requiring slab.h to be added manually.\n\n5. The script was run on all .h files but without automatically\n editing them as sprinkling gfp.h and slab.h inclusions around .h\n files could easily lead to inclusion dependency hell. Most gfp.h\n inclusion directives were ignored as stuff from gfp.h was usually\n wildly available and often used in preprocessor macros. Each\n slab.h inclusion directive was examined and added manually as\n necessary.\n\n6. percpu.h was updated not to include slab.h.\n\n7. Build test were done on the following configurations and failures\n were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my\n distributed build env didn\u0027t work with gcov compiles) and a few\n more options had to be turned off depending on archs to make things\n build (like ipr on powerpc/64 which failed due to missing writeq).\n\n * x86 and x86_64 UP and SMP allmodconfig and a custom test config.\n * powerpc and powerpc64 SMP allmodconfig\n * sparc and sparc64 SMP allmodconfig\n * ia64 SMP allmodconfig\n * s390 SMP allmodconfig\n * alpha SMP allmodconfig\n * um on x86_64 SMP allmodconfig\n\n8. percpu.h modifications were reverted so that it could be applied as\n a separate patch and serve as bisection point.\n\nGiven the fact that I had only a couple of failures from tests on step\n6, I\u0027m fairly confident about the coverage of this conversion patch.\nIf there is a breakage, it\u0027s likely to be something in one of the arch\nheaders which should be easily discoverable easily on most builds of\nthe specific arch.\n\nSigned-off-by: Tejun Heo \u003ctj@kernel.org\u003e\nGuess-its-ok-by: Christoph Lameter \u003ccl@linux-foundation.org\u003e\nCc: Ingo Molnar \u003cmingo@redhat.com\u003e\nCc: Lee Schermerhorn \u003cLee.Schermerhorn@hp.com\u003e\n" }, { "commit": "a9185b41a4f84971b930c519f0c63bd450c4810d", "tree": "268cf4e206cca12fb9e1dd68984e7c190e465b46", "parents": [ "26821ed40b4230259e770c9911180f38fcaa6f59" ], "author": { "name": "Christoph Hellwig", "email": "hch@lst.de", "time": "Fri Mar 05 09:21:37 2010 +0100" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Fri Mar 05 13:25:52 2010 -0500" }, "message": "pass writeback_control to -\u003ewrite_inode\n\nThis gives the filesystem more information about the writeback that\nis happening. Trond requested this for the NFS unstable write handling,\nand other filesystems might benefit from this too by beeing able to\ndistinguish between the different callers in more detail.\n\nSigned-off-by: Christoph Hellwig \u003chch@lst.de\u003e\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "50a76fd3c352ed2740eba01512efcfceee0703be", "tree": "425416e068648e225b41327a120d00bbddd16d0e", "parents": [ "b367e78bd1c7af4c018ce98b1f6d3e001aba895a" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Feb 11 13:01:39 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 28 03:55:53 2010 -0800" }, "message": "exofs: groups support\n\n* _calc_stripe_info() changes to accommodate for grouping\n calculations. Returns additional information\n\n* old _prepare_pages() becomes _prepare_one_group()\n which stores pages belonging to one device group.\n\n* New _prepare_for_striping iterates on all groups calling\n _prepare_one_group().\n\n* Enable mounting of groups data_maps (group_width !\u003d 0)\n\n[QUESTION]\nwhat is faster A or B;\nA.\tx +\u003d stride;\n\tx \u003d x % width + first_x;\n\nB\tx +\u003d stride\n\tif (x \u003c last_x)\n\t\tx \u003d first_x;\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "b367e78bd1c7af4c018ce98b1f6d3e001aba895a", "tree": "d9a5391e6893d1754919178264ac2c86674084ce", "parents": [ "96391e2bae0f8882b6f44809202a68be66e91dce" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 07 19:18:58 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 28 03:44:44 2010 -0800" }, "message": "exofs: Prepare for groups\n\n* Rename _offset_dev_unit_off() to _calc_stripe_info()\n and recieve a struct for the output params\n\n* In _prepare_for_striping we only need to call\n _calc_stripe_info() once. The other componets\n are easy to calculate from that. This code\n was inspired by what\u0027s done in truncate.\n\n* Some code shifts that make sense now but will make\n more sense when group support is added.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "96391e2bae0f8882b6f44809202a68be66e91dce", "tree": "f2a6ece9b3973143293e1221e992c60b07109429", "parents": [ "86093aaff5be5b214613eb60553e236bdb389c84" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Feb 09 11:43:21 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 28 03:44:43 2010 -0800" }, "message": "exofs: Error recovery if object is missing from storage\n\nIf an object is referenced by a directory but does not\nexist on a target, it is a very serious corruption that\nmeans:\n1. Either a power failure with very slim chance of it\n happening. Because the directory update is always submitted\n much after object creation, but if a directory is written\n to one device and the object creation to another it might\n theoretically happen.\n2. It only ever happened to me while developing with BUGs\n causing file corruption. Crashes could also cause it but\n they are more like case 1.\n\nIn any way the object does not exist, so data is surely lost.\nIf there is a mix-up in the obj-id or data-map, then lost objects\ncan be salvaged by off-line fsck. The only recoverable information\nis the directory name. By letting it appear as a regular empty file,\nwith date\u003d\u003d0 (1970 Jan 1st) ownership to root, we enable recovery\nof the only useful information. And also enable deletion or over-write.\nI can see how this can hurt.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "86093aaff5be5b214613eb60553e236bdb389c84", "tree": "64993f3fff8b60408441e8912aa5690346108492", "parents": [ "5d952b8391692553c31e620a92d6e09262a9a307" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Jan 28 18:24:06 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 28 03:44:42 2010 -0800" }, "message": "exofs: convert io_state to use pages array instead of bio at input\n\n* inode.c operations are full-pages based, and not actually\n true scatter-gather\n* Lets us use more pages at once upto 512 (from 249) in 64 bit\n* Brings us much much closer to be able to use exofs\u0027s io_state engine\n from objlayout driver. (Once I decide where to put the common code)\n\nAfter RAID0 patch the outer (input) bio was never used as a bio, but\nwas simply a page carrier into the raid engine. Even in the simple\nmirror/single-dev arrangement pages info was copied into a second bio.\nIt is now easer to just pass a pages array into the io_state and prepare\nbio(s) once.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "5d952b8391692553c31e620a92d6e09262a9a307", "tree": "b3a1a0490fc98b6304685d64bb4774235ec94a2d", "parents": [ "d9c740d2253e75db8cef8f87a3125c450f3ebd82" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Feb 01 13:35:51 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 28 03:43:08 2010 -0800" }, "message": "exofs: RAID0 support\n\nWe now support striping over mirror devices. Including variable sized\nstripe_unit.\n\nSome limits:\n* stripe_unit must be a multiple of PAGE_SIZE\n* stripe_unit * stripe_count is maximum upto 32-bit (4Gb)\n\nTested RAID0 over mirrors, RAID0 only, mirrors only. All check.\n\nDesign notes:\n* I\u0027m not using a vectored raid-engine mechanism yet. Following the\n pnfs-objects-layout data-map structure, \"Mirror\" is just a private\n case of \"group_width\" \u003d\u003d 1, and RAID0 is a private case of\n \"Mirrors\" \u003d\u003d 1. The performance lose of the general case over the\n particular special case optimization is totally negligible, also\n considering the extra code size.\n\n* In general I added a prepare_stripes() stage that divides the\n to-be-io pages to the participating devices, the previous\n exofs_ios_write/read, now becomes _write/read_mirrors and a new\n write/read upper layer loops on all devices calling\n _write/read_mirrors. Effectively the prepare_stripes stage is the all\n secret.\n Also truncate need fixing to accommodate for striping.\n\n* In a RAID0 arrangement, in a regular usage scenario, if all inode\n layouts will start at the same device, the small files fill up the\n first device and the later devices stay empty, the farther the device\n the emptier it is.\n\n To fix that, each inode will start at a different stripe_unit,\n according to it\u0027s obj_id modulus number-of-stripe-units. And\n will then span all stripe-units in the same incrementing order\n wrapping back to the beginning of the device table. We call it\n a stripe-units moving window.\n\n Special consideration was taken to keep all devices in a mirror\n arrangement identical. So a broken osd-device could just be cloned\n from one of the mirrors and no FS scrubbing is needed. (We do that\n by rotating stripe-unit at a time and not a single device at a time.)\n\nTODO:\n We no longer verify object_length \u003d\u003d inode-\u003ei_size in exofs_iget.\n (since i_size is stripped on multiple objects now).\n I should introduce a multiple-device attribute reading, and use\n it in exofs_iget.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "d9c740d2253e75db8cef8f87a3125c450f3ebd82", "tree": "7217cf62b8d102e00257be6e0675d25852045bc6", "parents": [ "46f4d973f6874c06b7a41a3bf8f4c1717d90f97a" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Jan 28 11:58:08 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 28 03:35:28 2010 -0800" }, "message": "exofs: Define on-disk per-inode optional layout attribute\n\n* Layouts describe the way a file is spread on multiple devices.\n The layout information is stored in the objects attribute introduced\n in this patch.\n\n* There can be multiple generating function for the layout.\n Currently defined:\n - No attribute present - use below moving-window on global\n device table, all devices.\n (This is the only one currently used in exofs)\n - an obj_id generated moving window - the obj_id is a randomizing\n factor in the otherwise global map layout.\n - An explicit layout stored, including a data_map and a device\n index list.\n - More might be defined in future ...\n\n* There are two attributes defined of the same structure:\n A-data-files-layout - This layout is used by data-files. If present\n at a directory, all files of that directory will\n be created with this layout.\n A-meta-data-layout - This layout is used by a directory and other\n meta-data information. Also inherited at creation\n of subdirectories.\n\n* At creation time inodes are created with the layout specified above.\n A usermode utility may change the creation layout on a give directory\n or file. Which in the case of directories, will also apply to newly\n created files/subdirectories, children of that directory.\n In the simple unaltered case of a newly created exofs, no layout\n attributes are present, and all layouts adhere to the layout specified\n at the device-table.\n\n* In case of a future file system loaded in an old exofs-driver.\n At iget(), the generating_function is inspected and if not supported\n will return an IO error to the application and the inode will not\n be loaded. So not to damage any data.\n Note: After this patch we do not yet support any type of layout\n only the RAID0 patch that enables striping at the super-block\n level will add support for RAID0 layouts above. This way we\n are past and future compatible and fully bisectable.\n\n* Access to the device table is done by an accessor since\n it will change according to above information.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "46f4d973f6874c06b7a41a3bf8f4c1717d90f97a", "tree": "49242195a5e275c25c8e73a09c6b9756f8e18d27", "parents": [ "45d3abcb1a7388b2b97582e13bf9dd21784dcaa5" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Mon Feb 01 11:37:30 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 28 03:35:27 2010 -0800" }, "message": "exofs: unindent exofs_sbi_read\n\nThe original idea was that a mirror read can be sub-divided\nto multiple devices. But this has very little gain and only\nat very large IOes so it\u0027s not going to be implemented soon.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "45d3abcb1a7388b2b97582e13bf9dd21784dcaa5", "tree": "e957fdec303c073490c261999d6939c2ecf20352", "parents": [ "22ddc556380cf5645c52292b6d980766646eb864" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Jan 28 11:46:16 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 28 03:35:27 2010 -0800" }, "message": "exofs: Move layout related members to a layout structure\n\n* Abstract away those members in exofs_sb_info that are related/needed\n by a layout into a new exofs_layout structure. Embed it in exofs_sb_info.\n\n* At exofs_io_state receive/keep a pointer to an exofs_layout. No need for\n an exofs_sb_info pointer, all we need is at exofs_layout.\n\n* Change any usage of above exofs_sb_info members to their new name.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "22ddc556380cf5645c52292b6d980766646eb864", "tree": "07d498ba10f4393fb4cde6a79b22a50b6a0f7efb", "parents": [ "518f167a37b3c53f3cf44d27800455ca24e920f6" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Jan 19 19:24:45 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 28 03:35:26 2010 -0800" }, "message": "exofs: Recover in the case of read-passed-end-of-file\n\nIn check_io, implement the case of reading passed end of\nfile, by clearing the pages and recover with no error. In\na raid arrangement this can become a legitimate situation\nin case of holes in the file.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "518f167a37b3c53f3cf44d27800455ca24e920f6", "tree": "9ba5e73f6e7b7107a1b151503eecd8d5cc09e687", "parents": [ "34ce4e7c23e3da578e459b05c6fb17edecb19e6b" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Thu Jan 21 20:00:02 2010 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 28 03:35:25 2010 -0800" }, "message": "exofs: Micro-optimize exofs_i_info\n\noptimize the exofs_i_info struct usage by moving the embedded\nvfs_inode to be first. A compiler might optimize away an \"add\"\noperation with constant zero. (Which it cannot with other constants)\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" }, { "commit": "34ce4e7c23e3da578e459b05c6fb17edecb19e6b", "tree": "94713d94514b3d0e89dd05e727eaaae98369b28a", "parents": [ "abe94c756c08d50566c09a65b9c7fe72f83071c5" ], "author": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Tue Dec 15 19:34:17 2009 +0200" }, "committer": { "name": "Boaz Harrosh", "email": "bharrosh@panasas.com", "time": "Sun Feb 28 03:35:25 2010 -0800" }, "message": "exofs: debug print even less\n\n* Last debug trimming left in some stupid print, remove them.\n Fixup some other prints\n* Shift printing from inode.c to ios.c\n* Add couple of prints when memory allocation fails.\n\nSigned-off-by: Boaz Harrosh \u003cbharrosh@panasas.com\u003e\n" } ], "next": "efd124b999fb4d426b30675f1684521af0872789" }