)]}' { "log": [ { "commit": "b04eb6aa08ecc3e24df2f78ebc486011ebd74feb", "tree": "8dbf6a2449f886f0db9c3082dabdf83d4c4f04f7", "parents": [ "a9cdf410ca8f59b52bc7061a6751050010c7cc5b" ], "author": { "name": "Mitchell Blank Jr", "email": "mitch@sfgoth.com", "time": "Mon Apr 10 22:54:08 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Apr 11 06:18:41 2006 -0700" }, "message": "[PATCH] select: don\u0027t overflow if (SELECT_STACK_ALLOC % sizeof(long) !\u003d 0)\n\nIf SELECT_STACK_ALLOC is not a multiple of sizeof(long) then stack_fds[]\nwould be shorter than SELECT_STACK_ALLOC bytes and could overflow later in\nthe function. Fixed by simply rearranging the test later to work on\nsizeof(stack_fds) Currently SELECT_STACK_ALLOC is 256 so this doesn\u0027t\nhappen, but it\u0027s nasty to have things like this hidden in the code. What\nif later someone decides to change SELECT_STACK_ALLOC to 300?\n\nSigned-off-by: Mitchell Blank Jr \u003cmitch@sfgoth.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "29ff2db55196717e2e67e0f04adc833ee7edd491", "tree": "7f68496e093a294d60939b60aa204ff16fb9633a", "parents": [ "8a5bc075b8d8cf7a87b3f08fad2fba0f5d13295e" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Mon Apr 10 22:52:46 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Apr 11 06:18:30 2006 -0700" }, "message": "[PATCH] select() warning fixes\n\nfs/select.c: In function `core_sys_select\u0027:\nfs/select.c:339: warning: assignment from incompatible pointer type\nfs/select.c:376: warning: comparison of distinct pointer types lacks a cast\n\nBy using a void* we can remove lots of casts rather than adding more.\n\nCc: Jes Sorensen \u003cjes@trained-monkey.org\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "30c14e40ed85469f166b5effdab6705c73c5cd5e", "tree": "31154f46c2c2acd0499b9ab8c849f009ac342641", "parents": [ "d21c356b08820e60501ce7a42107a7f05863d91d" ], "author": { "name": "Jes Sorensen", "email": "jes@sgi.com", "time": "Fri Mar 31 11:18:57 2006 -0500" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Mar 31 12:30:48 2006 -0800" }, "message": "[PATCH] avoid unaligned access when accessing poll stack\n\nCommit 70674f95c0a2ea694d5c39f4e514f538a09be36f:\n\n [PATCH] Optimize select/poll by putting small data sets on the stack\n\nresulted in the poll stack being 4-byte aligned on 64-bit architectures,\ncausing misaligned accesses to elements in the array.\n\nThis patch fixes it by declaring the stack in terms of \u0027long\u0027 instead\nof \u0027char\u0027.\n\nForce alignment of poll and select stacks to long to avoid unaligned\naccess on 64 bit architectures.\n\nSigned-off-by: Jes Sorensen \u003cjes@sgi.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "99ac48f54a91d02140c497edc31dc57d4bc5c85d", "tree": "68719391694a6914191bdf73d2071875f7653f6f", "parents": [ "ec1b9466cb4f6ae6d950bd67055d9410d1056d2a" ], "author": { "name": "Arjan van de Ven", "email": "arjan@infradead.org", "time": "Tue Mar 28 01:56:41 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 09:16:05 2006 -0800" }, "message": "[PATCH] mark f_ops const in the inode\n\nMark the f_ops members of inodes as const, as well as fix the\nripple-through this causes by places that copy this f_ops and then \"do\nstuff\" with it.\n\nSigned-off-by: Arjan van de Ven \u003carjan@infradead.org\u003e\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e4a1f129f9e43a5e5d28fe6d1b214246a398cdce", "tree": "9a8277520d5ef1bf8e86f11d76e6f0244efd9330", "parents": [ "70674f95c0a2ea694d5c39f4e514f538a09be36f" ], "author": { "name": "Eric Dumazet", "email": "dada1@cosmosbay.com", "time": "Tue Mar 28 01:56:34 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 09:16:04 2006 -0800" }, "message": "[PATCH] use fget_light() in select/poll\n\nCc: Andi Kleen \u003cak@muc.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "70674f95c0a2ea694d5c39f4e514f538a09be36f", "tree": "906d109fafc5eafff6a90c8d866e0525fdaf6783", "parents": [ "b02389e98a7b64ad5cd4823740defa8821f30bbd" ], "author": { "name": "Andi Kleen", "email": "ak@suse.de", "time": "Tue Mar 28 01:56:33 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Mar 28 09:16:04 2006 -0800" }, "message": "[PATCH] Optimize select/poll by putting small data sets on the stack\n\nOptimize select and poll by a using stack space for small fd sets\n\nThis brings back an old optimization from Linux 2.0. Using the stack is\nfaster than kmalloc. On a Intel P4 system it speeds up a select of a\nsingle pty fd by about 13% (~4000 cycles -\u003e ~3500)\n\nIt also saves memory because a daemon hanging in select or poll will\nusually save one or two less pages. This can add up - e.g. if you have 10\ndaemons blocking in poll/select you save 40KB of memory.\n\nI did a patch for this long ago, but it was never applied. This version is\na reimplementation of the old patch that tries to be less intrusive. I\nonly did the minimal changes needed for the stack allocation.\n\nThe cut off point before external memory is allocated is currently at\n832bytes. The system calls always allocate this much memory on the stack.\n\nThese 832 bytes are divided into 256 bytes frontend data (for the select\nbitmaps of the pollfds) and the rest of the space for the wait queues used\nby the low level drivers. There are some extreme cases where this won\u0027t\nwork out for select and it falls back to allocating memory too early -\nespecially with very sparse large select bitmaps - but the majority of\nprocesses who only have a small number of file descriptors should be ok.\n[TBD: 832/256 might not be the best split for select or poll]\n\nI suspect more optimizations might be possible, but they would be more\ncomplicated. One way would be to cache the select/poll context over\nmultiple system calls because typically the input values should be similar.\n Problem is when to flush the file descriptors out though.\n\nSigned-off-by: Andi Kleen \u003cak@suse.de\u003e\nCc: Eric Dumazet \u003cdada1@cosmosbay.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "74910e6c7dc7471b286a883c1a7af70483ffd2ba", "tree": "42314cf5882563b967284900a18e990b8a974a91", "parents": [ "200a4552af34b9a32e1f68a881a9ed5c7ec699cc" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Fri Feb 17 13:52:58 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Feb 17 13:59:28 2006 -0800" }, "message": "[PATCH] select: time comparison fixes\n\nI got all of these backwards. We want to return\n\n\tmin(input timeout, new timeout)\n\nto userspace to prevent increasing the time-remaining value.\n\nThanks to Ernst Herzberg \u003cearny@net4u.de\u003e for reporting and diagnosing.\n\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "643a654540579b0dcc7a206a4a7475276a41aff0", "tree": "e31d40e4362e4dc7823b7290c0de2a9353d3d117", "parents": [ "33042a9ff4d126ba944b9dc3076665a2029e0a34" ], "author": { "name": "Andrew Morton", "email": "akpm@osdl.org", "time": "Sat Feb 11 17:55:52 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Sat Feb 11 21:41:11 2006 -0800" }, "message": "[PATCH] select: fix returned timeval\n\nWith David Woodhouse \u003cdwmw2@infradead.org\u003e\n\nselect() presently has a habit of increasing the value of the user\u0027s\n`timeout\u0027 argument on return.\n\nWe were writing back a timeout larger than the original. We _deliberately_\nround up, since we know we must wait at _least_ as long as the caller asks\nus to.\n\nThe patch adds a couple of helper functions for magnitude comparison of\ntimespecs and of timevals, and uses them to prevent the various poll and\nselect functions from returning a timeout which is larger than the one which\nwas passed in.\n\nThe patch also fixes a bug in compat_sys_pselect7(): it was adding the new\ntimeout value to the old one and was returning that. It should just return\nthe new timeout value.\n\n(We have various handy timespec/timeval-to-from-nsec conversion functions in\ntime.h. But this code open-codes it all).\n\nCc: \"David S. Miller\" \u003cdavem@davemloft.net\u003e\nCc: Andi Kleen \u003cak@muc.de\u003e\nCc: Ulrich Drepper \u003cdrepper@redhat.com\u003e\nCc: Thomas Gleixner \u003ctglx@linutronix.de\u003e\nCc: george anzinger \u003cgeorge@mvista.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "e110ab94ebc714de57f75f0c7c576dde8cf80944", "tree": "c07b5f010d244cb11afeb50becdb1d7256a8560d", "parents": [ "3023b438c4b6103d520690cfa8b790bdd3868dc2" ], "author": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Wed Feb 01 05:26:09 2006 -0500" }, "committer": { "name": "Al Viro", "email": "viro@zeniv.linux.org.uk", "time": "Tue Feb 07 20:57:31 2006 -0500" }, "message": "[PATCH] fix __user annotations in fs/select.c\n\nSigned-off-by: Al Viro \u003cviro@zeniv.linux.org.uk\u003e\n" }, { "commit": "9f72949f679df06021c9e43886c9191494fdb007", "tree": "f4d76ed281b34e195db7741b69a7d095e168a864", "parents": [ "36a7878a224c18aa4a5e098dc93d19cf5601462b" ], "author": { "name": "David Woodhouse", "email": "dwmw2@infradead.org", "time": "Wed Jan 18 17:44:05 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jan 18 19:20:30 2006 -0800" }, "message": "[PATCH] Add pselect/ppoll system call implementation\n\nThe following implementation of ppoll() and pselect() system calls\ndepends on the architecture providing a TIF_RESTORE_SIGMASK flag in the\nthread_info.\n\nThese system calls have to change the signal mask during their\noperation, and signal handlers must be invoked using the new, temporary\nsignal mask. The old signal mask must be restored either upon successful\nexit from the system call, or upon returning from the invoked signal\nhandler if the system call is interrupted. We can\u0027t simply restore the\noriginal signal mask and return to userspace, since the restored signal\nmask may actually block the signal which interrupted the system call.\n\nThe TIF_RESTORE_SIGMASK flag deals with this by causing the syscall exit\npath to trap into do_signal() just as TIF_SIGPENDING does, and by\ncausing do_signal() to use the saved signal mask instead of the current\nsignal mask when setting up the stack frame for the signal handler -- or\nby causing do_signal() to simply restore the saved signal mask in the\ncase where there is no handler to be invoked.\n\nThe first patch implements the sys_pselect() and sys_ppoll() system\ncalls, which are present only if TIF_RESTORE_SIGMASK is defined. That\n#ifdef should go away in time when all architectures have implemented\nit. The second patch implements TIF_RESTORE_SIGMASK for the PowerPC\nkernel (in the -mm tree), and the third patch then removes the\narch-specific implementations of sys_rt_sigsuspend() and replaces them\nwith generic versions using the same trick.\n\nThe fourth and fifth patches, provided by David Howells, implement\nTIF_RESTORE_SIGMASK for FR-V and i386 respectively, and the sixth patch\nadds the syscalls to the i386 syscall table.\n\nThis patch:\n\nAdd the pselect() and ppoll() system calls, providing core routines usable by\nthe original select() and poll() system calls and also the new calls (with\ntheir semantics w.r.t timeouts).\n\nSigned-off-by: David Woodhouse \u003cdwmw2@infradead.org\u003e\nCc: Michael Kerrisk \u003cmtk-manpages@gmx.net\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b835996f628eadb55c5fb222ba46fe9395bf73c7", "tree": "d63d80585d197e1ffc299af4a0034049790fb197", "parents": [ "ab2af1f5005069321c5d130f09cce577b03f43ef" ], "author": { "name": "Dipankar Sarma", "email": "dipankar@in.ibm.com", "time": "Fri Sep 09 13:04:14 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 13:57:55 2005 -0700" }, "message": "[PATCH] files: lock-free fd look-up\n\nWith the use of RCU in files structure, the look-up of files using fds can now\nbe lock-free. The lookup is protected by rcu_read_lock()/rcu_read_unlock().\nThis patch changes the readers to use lock-free lookup.\n\nSigned-off-by: Maneesh Soni \u003cmaneesh@in.ibm.com\u003e\nSigned-off-by: Ravikiran Thirumalai \u003ckiran_th@gmail.com\u003e\nSigned-off-by: Dipankar Sarma \u003cdipankar@in.ibm.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "badf16621c1f9d1ac753be056fce11b43d6e0be5", "tree": "3fdf833fdf2e3d3a439090743539680449ec3428", "parents": [ "c0dfb2905126e9e94edebbce8d3e05001301f52d" ], "author": { "name": "Dipankar Sarma", "email": "dipankar@in.ibm.com", "time": "Fri Sep 09 13:04:10 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 13:57:55 2005 -0700" }, "message": "[PATCH] files: break up files struct\n\nIn order for the RCU to work, the file table array, sets and their sizes must\nbe updated atomically. Instead of ensuring this through too many memory\nbarriers, we put the arrays and their sizes in a separate structure. This\npatch takes the first step of putting the file table elements in a separate\nstructure fdtable that is embedded withing files_struct. It also changes all\nthe users to refer to the file table using files_fdtable() macro. Subsequent\napplciation of RCU becomes easier after this.\n\nSigned-off-by: Dipankar Sarma \u003cdipankar@in.ibm.com\u003e\nSigned-Off-By: David Howells \u003cdhowells@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "75c96f85845a6707b0f9916cb263cb3584f7d48f", "tree": "45a64d1c9bb71d7093db3a11e0f21465c2e3dec6", "parents": [ "5e198d94dd0c3ec7f6138229e2e412c2c6268c38" ], "author": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Thu May 05 16:16:09 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Thu May 05 16:36:47 2005 -0700" }, "message": "[PATCH] make some things static\n\nThis patch makes some needlessly global identifiers static.\n\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nAcked-by: Arjan van de Ven \u003carjanv@infradead.org\u003e\nAcked-by: Trond Myklebust \u003ctrond.myklebust@fys.uio.no\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "tree": "0bba044c4ce775e45a88a51686b5d9f90697ea9d", "parents": [], "author": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@ppc970.osdl.org", "time": "Sat Apr 16 15:20:36 2005 -0700" }, "message": "Linux-2.6.12-rc2\n\nInitial git repository build. I\u0027m not bothering with the full history,\neven though we have it. We can create a separate \"historical\" git\narchive of that later if we want to, and in the meantime it\u0027s about\n3.2GB when imported into git - space that would just make the early\ngit days unnecessarily complicated, when we don\u0027t have a lot of good\ninfrastructure for it.\n\nLet it rip!\n" } ] }