)]}' { "log": [ { "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": "3ad2f3fbb961429d2aa627465ae4829758bc7e07", "tree": "f365c513e8f5b477a61336a600ff54f32b7ad6e1", "parents": [ "1537a3638cbf741d3826c1002026cce487a6bee0" ], "author": { "name": "Daniel Mack", "email": "daniel@caiaq.de", "time": "Wed Feb 03 08:01:28 2010 +0800" }, "committer": { "name": "Jiri Kosina", "email": "jkosina@suse.cz", "time": "Tue Feb 09 11:13:56 2010 +0100" }, "message": "tree-wide: Assorted spelling fixes\n\nIn particular, several occurances of funny versions of \u0027success\u0027,\n\u0027unknown\u0027, \u0027therefore\u0027, \u0027acknowledge\u0027, \u0027argument\u0027, \u0027achieve\u0027, \u0027address\u0027,\n\u0027beginning\u0027, \u0027desirable\u0027, \u0027separate\u0027 and \u0027necessary\u0027 are fixed.\n\nSigned-off-by: Daniel Mack \u003cdaniel@caiaq.de\u003e\nCc: Joe Perches \u003cjoe@perches.com\u003e\nCc: Junio C Hamano \u003cgitster@pobox.com\u003e\nSigned-off-by: Jiri Kosina \u003cjkosina@suse.cz\u003e\n" }, { "commit": "eeb89d918c2fa2b809e464136bbafdaec2aacb30", "tree": "d811f53e0182c40a793b948e72739040670f97c8", "parents": [ "e8c62103fd5fecc8d2086bae244b32d089892175" ], "author": { "name": "Alan Cox", "email": "alan@linux.intel.com", "time": "Mon Nov 30 13:18:29 2009 +0000" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri Dec 11 15:18:08 2009 -0800" }, "message": "tty: push the BKL down into the handlers a bit\n\nStart trying to untangle the remaining BKL mess\n\nUpdated to fix missing unlock_kernel noted by Dan Carpenter\n\nSigned-off-by: Alan \"I must be out of my tree\" Cox \u003calan@linux.intel.com\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n" }, { "commit": "6d4561110a3e9fa742aeec6717248a491dfb1878", "tree": "689e2abf19940416ce597ba56ed31026ff59bd21", "parents": [ "86926d0096279b9739ceeff40f68d3c33b9119a9" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Mon Nov 16 03:11:48 2009 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Wed Nov 18 08:37:40 2009 -0800" }, "message": "sysctl: Drop \u0026 in front of every proc_handler.\n\nFor consistency drop \u0026 in front of every proc_handler. Explicity\ntaking the address is unnecessary and it prevents optimizations\nlike stubbing the proc_handlers to NULL.\n\nCc: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nCc: Ingo Molnar \u003cmingo@elte.hu\u003e\nCc: Joe Perches \u003cjoe@perches.com\u003e\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\n" }, { "commit": "894d2491153a9f8270dbed21175d06fde4eba6c7", "tree": "e49698028c4a953f4b31363a0225c7fab28cffc0", "parents": [ "c2a86a67fadd9dddc58f55ce6323c04dde59ebed" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu Nov 05 14:34:02 2009 -0800" }, "committer": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu Nov 12 02:04:58 2009 -0800" }, "message": "sysctl drivers: Remove dead binary sysctl support\n\nNow that sys_sysctl is a wrapper around /proc/sys all of\nthe binary sysctl support elsewhere in the tree is\ndead code.\n\nCc: Jens Axboe \u003caxboe@kernel.dk\u003e\nCc: Corey Minyard \u003cminyard@acm.org\u003e\nCc: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\nCc: Matt Mackall \u003cmpm@selenic.com\u003e\nCc: Herbert Xu \u003cherbert@gondor.apana.org.au\u003e\nCc: Neil Brown \u003cneilb@suse.de\u003e\nCc: \"James E.J. Bottomley\" \u003cJames.Bottomley@suse.de\u003e\nAcked-by: Clemens Ladisch \u003cclemens@ladisch.de\u003e for drivers/char/hpet.c\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\n" }, { "commit": "d43c36dc6b357fa1806800f18aa30123c747a6d1", "tree": "339ce510073ecbe9b3592008f7dece7b277035ef", "parents": [ "69585dd69e663a40729492c7b52eb82477a2027a" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Wed Oct 07 17:09:06 2009 +0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Oct 11 11:20:58 2009 -0700" }, "message": "headers: remove sched.h from interrupt.h\n\nAfter m68k\u0027s task_thread_info() doesn\u0027t refer to current,\nit\u0027s possible to remove sched.h from interrupt.h and not break m68k!\nMany thanks to Heiko Carstens for allowing this.\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\n" }, { "commit": "342a597146e8639f7c8d49f056340c2e5536dda6", "tree": "be6ef41a9c2b595a79e088c976932314facceb9f", "parents": [ "e207e143e2fb6a2790b1ce3687c8aedc3ddc357b" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 30 07:49:40 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Sep 30 07:49:40 2009 -0700" }, "message": "pty: reconnect the BSD TIOCSPTLCK handling to legacy ptys\n\nDavid Howells noticed (due to the compiler warning about an unused\n\u0027pty_ops_bsd\u0027 variable) that we haven\u0027t actually been using the code\nthat implements TIOCSPTLCK for legacy pty handling. It\u0027s been that way\nsince 2.6.26, commit 3e8e88ca053150efdbecb45d8f481cf560ec808d to be\nexact (\"pty: prepare for tty-\u003eops changes\").\n\nDavidH initially submitted a patch just removing the dead code entirely,\nand since nobody has apparently ever complained, I\u0027m not entirely sure\nthat wouldn\u0027t be the right thing to do. But since the whole and only\npoint of the legacy pty code is to be compatible with legacy distros\nthat don\u0027t use the new unix98 pty model, let\u0027s just wire it up again.\n\nAnd clean it up a bit while we\u0027re at it.\n\nAcked-by: David Howells \u003cdhowells@redhat.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "202c4675c55ddf6b443c7e057d2dff6b42ef71aa", "tree": "b0340f27f46715cd40f882c123b83685daea99dd", "parents": [ "df58bee21ed218cb7dfb561a590b1bd2a99531cf" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 18 07:05:58 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Sep 18 07:05:58 2009 -0700" }, "message": "pty_write: don\u0027t do a tty_wakeup() when the buffers are full\n\nCommit ac89a9174 (\"pty: don\u0027t limit the writes to \u0027pty_space()\u0027 inside\n\u0027pty_write()\u0027\") removed the pty_space() checking, in order to let the\nregular tty buffer code limit the buffering itself.\n\nThat was all good, but as a subtle side effect it meant that we\u0027d be\ndoing a tty_wakeup() even in the case where the buffers were all filled\nup, and didn\u0027t actually make any progress on the write.\n\nWhich sounds innocuous, but it interacts very badly with the ppp_async\ncode, which has an infinite loop in ppp_async_push() that tries to push\nout data to the tty. When we call tty_wakeup(), that loop ends up\nthinking that progress was made (see the subtle interactions between\nXMIT_WAKEUP and \u0027tty_stuffed\u0027 for details). End result: one unhappy ppp\nuser.\n\nFixed by noticing when tty_insert_flip_string() didn\u0027t actually do\nanything, and then not doing any more processing (including, very much\nnot calling tty_wakeup()).\n\nBisected-and-tested-by: Peter Volkov \u003cpva@gentoo.org\u003e\nCc: stable@kernel.org (2.6.31)\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "ac89a9174decf343de049a06fad75681f71890eb", "tree": "c2fa9e7deef47b2cbc6bf4523e068a0265b105ac", "parents": [ "37f81fa1f63ad38e16125526bb2769ae0ea8d332" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Sep 05 13:27:10 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sat Sep 05 13:27:10 2009 -0700" }, "message": "pty: don\u0027t limit the writes to \u0027pty_space()\u0027 inside \u0027pty_write()\u0027\n\nThe whole write-room thing is something that is up to the _caller_ to\nworry about, not the pty layer itself. The total buffer space will\nstill be limited by the buffering routines themselves, so there is no\nadvantage or need in having pty_write() artificially limit the size\nsomehow.\n\nAnd what happened was that the caller (the n_tty line discipline, in\nthis case) may have verified that there is room for 2 bytes to be\nwritten (for NL -\u003e CRNL expansion), and it used to then do those writes\nas two single-byte writes. And if the first byte written (CR) then\ncaused a new tty buffer to be allocated, pty_space() may have returned\nzero when trying to write the second byte (LF), and then incorrectly\nfailed the write - leading to a lost newline character.\n\nThis should finally fix\n\n\thttp://bugzilla.kernel.org/show_bug.cgi?id\u003d14015\n\nReported-by: Mikael Pettersson \u003cmikpe@it.uu.se\u003e\nAcked-by: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "85dfd81dc57e8183a277ddd7a56aa65c96f3f487", "tree": "7b09e7d8fdc4dbe7e57a3fc2df659a5506dfaa77", "parents": [ "d00aa6695b67a31be2ce5f7464da32c20cb50699" ], "author": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 13:21:19 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Aug 10 13:31:18 2009 -0700" }, "message": "pty: fix data loss when stopped (^S/^Q)\n\nCommit d945cb9cc (\"pty: Rework the pty layer to use the normal buffering\nlogic\") dropped the test for \u0027tty-\u003estopped\u0027 in pty_write_room(), which\nthen causes the n_tty line discipline thing to not throttle the data\nproperly when the tty is stopped.\n\nSo instead of pausing the write due to the tty being stopped, the ldisc\nlayer would go ahead and push it down to the pty. The pty write()\nroutine would then refuse to take the data (because it _did_ check\n\u0027stopped\u0027), and the data wouldn\u0027t actually be written.\n\nThis whole stopped test should eventually be moved into the tty ldisc\nlayer rather than have low-level tty drivers care about these things,\nbut right now the fix is to just re-instate the missing pty \u0027stopped\u0027\nhandling.\n\nReported-and-tested-by: Artur Skawina \u003cart.08.09@gmail.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "e043e42bdb66885b3ac10d27a01ccb9972e2b0a3", "tree": "12b40fd776f653484a77fd84f07cc304276141b1", "parents": [ "7d3e91b8a1f5179d56a7412d4b499f2d5fc6b25d" ], "author": { "name": "OGAWA Hirofumi", "email": "hirofumi@mail.parknet.co.jp", "time": "Wed Jul 29 12:15:56 2009 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 29 12:15:56 2009 -0700" }, "message": "pty: avoid forcing \u0027low_latency\u0027 tty flag\n\nWe really don\u0027t want to mark the pty as a low-latency device, because as\nAlan points out, the -\u003ewrite method can be called from an IRQ (ppp?),\nand that means we can\u0027t use -\u003elow_latency\u003d1 as we take mutexes in the\nlow_latency case.\n\nSo rather than using low_latency to force the written data to be pushed\nto the ldisc handling at \u0027write()\u0027 time, just make the reader side (or\nthe poll function) do the flush when it checks whether there is data to\nbe had.\n\nThis also fixes the problem with lost data in an emacs compile buffer\n(bugzilla 13815), and we can thus revert the low_latency pty hack\n(commit 3a54297478e6578f96fd54bf4daa1751130aca86: \"pty: quickfix for the\npty ENXIO timing problems\").\n\nSigned-off-by: OGAWA Hirofumi \u003chirofumi@mail.parknet.co.jp\u003e\nTested-by: Aneesh Kumar K.V \u003caneesh.kumar@linux.vnet.ibm.com\u003e\n[ Modified to do the tty_flush_to_ldisc() inside input_available_p() so\n that it triggers for both read and poll() - Linus]\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3a54297478e6578f96fd54bf4daa1751130aca86", "tree": "da5d7831f19d8fa58d5da3f8453fb53c0f66e86b", "parents": [ "f1462147f15a954a1a0553390846c6fa3ca742b1" ], "author": { "name": "Alan Cox", "email": "alan@linux.intel.com", "time": "Mon Jul 27 22:17:51 2009 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jul 27 15:53:29 2009 -0700" }, "message": "pty: quickfix for the pty ENXIO timing problems\n\nThis also makes close stall in the normal case which is apparently\nneeded to fix emacs\n\nSigned-off-by: Alan Cox \u003calan@linux.intel.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "405f55712dfe464b3240d7816cc4fe4174831be2", "tree": "96c425ea7fa8b31058b8f83a433c5e5265c8ebc7", "parents": [ "f9fabcb58a6d26d6efde842d1703ac7cfa9427b6" ], "author": { "name": "Alexey Dobriyan", "email": "adobriyan@gmail.com", "time": "Sat Jul 11 22:08:37 2009 +0400" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 12 12:22:34 2009 -0700" }, "message": "headers: smp_lock.h redux\n\n* Remove smp_lock.h from files which don\u0027t need it (including some headers!)\n* Add smp_lock.h to files which do need it\n* Make smp_lock.h include conditional in hardirq.h\n It\u0027s needed only for one kernel_locked() usage which is under CONFIG_PREEMPT\n\n This will make hardirq.h inclusion cheaper for every PREEMPT\u003dn config\n (which includes allmodconfig/allyesconfig, BTW)\n\nSigned-off-by: Alexey Dobriyan \u003cadobriyan@gmail.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d945cb9cce20ac7143c2de8d88b187f62db99bdc", "tree": "88f8cc4b4e545c4e8ce998c9400767fffe5ddc94", "parents": [ "b4b21cac88caa4078f5755b0bd3770af5fe9c146" ], "author": { "name": "Alan Cox", "email": "alan@linux.intel.com", "time": "Tue Jul 07 16:39:41 2009 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Jul 08 09:47:59 2009 -0700" }, "message": "pty: Rework the pty layer to use the normal buffering logic\n\nThis fixes the ppp problems and various other issues with call locking\ncaused by one side of a pty called in one locking context trying to match\nanother with differing rules on the other side. We also get a big slack\nspace to work with that means we can bury the flow control deadlock case\nfor any conceivable real world situation.\n\nSigned-off-by: Alan Cox \u003calan@linux.intel.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "762faaed91e4ea4a3c34bc58f3221d9487acb470", "tree": "cfecc2acfee012a295eee3424b623ba14a9a661a", "parents": [ "5dca607bcf10d3f08d07ffeac664c6769c336145" ], "author": { "name": "Alan Cox", "email": "alan@linux.intel.com", "time": "Tue Jun 16 17:01:13 2009 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Tue Jun 16 12:01:16 2009 -0700" }, "message": "pty: Narrow the race on ldisc locking\n\nThe pty code has always been buggy on its ldisc handling. The recent\nchanges made the window for the race much bigger. Pending fixing it\nproperly which is not at all trivial, at least make the race small again so\nwe don\u0027t disrupt other dev work.\n\nSigned-off-by: Alan Cox \u003calan@linux.intel.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c65c9bc3efa5589f691276bb9db689119a711222", "tree": "ccb86ffb28ecafa77623fb2789faae8e4c1e2c4b", "parents": [ "e8b70e7d3e86319a8b2aaabde3866833d92cd80f" ], "author": { "name": "Alan Cox", "email": "alan@linux.intel.com", "time": "Thu Jun 11 12:50:12 2009 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 11 08:51:01 2009 -0700" }, "message": "tty: rewrite the ldisc locking\n\nThere are several pretty much unfixable races in the old ldisc code, especially\nwith respect to pty behaviour and also to hangup. It\u0027s easier to rewrite the\ncode than simply try and patch it up.\n\nThis patch\n- splits the ldisc from the tty (so we will be able to refcount it more cleanly\n later)\n- introduces a mutex lock for ldisc changing on an active device\n- fixes the complete mess that hangup caused\n- implements hopefully correct setldisc/close/hangup locking\n\nThere are still some problems around pty pairs that have always been there but\nat least it is now possible to understand the code and fix further problems.\n\nThis fixes the following known bugs\n- hang up can leak ldisc references\n- hang up may not call open/close on ldisc in a matched way\n- pty/tty pairs can deadlock during an ldisc change\n- reading the ldisc proc files can cause every ldisc to be loaded\n\nand probably a few other of the mysterious ldisc race reports.\n\nI\u0027m sure it also adds the odd new one.\n\nSigned-off-by: Alan Cox \u003calan@linux.intel.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "620df3c0a5b70656c4de6049825de214f108218e", "tree": "ba575904a4e0f72883ff62fe23dff5d241334e5e", "parents": [ "4b6ae89ef40d0d5d4c85098c1d0a012333a68729" ], "author": { "name": "Alan Cox", "email": "alan@linux.intel.com", "time": "Thu Jun 11 12:45:53 2009 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jun 11 08:51:00 2009 -0700" }, "message": "pty: Fix a comment\n\nWe fixed the globals, so now fix the comment\n\nSigned-off-by: Alan Cox \u003calan@linux.intel.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "c774bda2fdc5412124a854a791d9f6f52936ff81", "tree": "1b9be299fb0b9307184dddb2b4dacda52f32da64", "parents": [ "12847095e9c96cdf1ca6dd980ca733c38f8e9a98" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Sun Jan 11 19:46:49 2009 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Jan 12 16:37:00 2009 -0800" }, "message": "pty: Fix documentation\n\nThe pty changes and updates for window sizing forgot to correct the\nkerneldoc\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "da2bdf9a6ff40b10d77620d0d76b02a738c103cb", "tree": "16ca5b7ae8b504fbc2a5e54f934837b5d1172eaa", "parents": [ "9a8d5bb4ad829e66ab5428ccdce2cbc8ab0ac96c" ], "author": { "name": "Roel Kluin", "email": "roel.kluin@gmail.com", "time": "Wed Jan 07 18:09:15 2009 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Thu Jan 08 08:31:15 2009 -0800" }, "message": "Make various things static\n\nBuilding an allnoconfig kernel, sparse asked whether these could be\nstatic, so I checked, and they are only used in the file where they are\ndeclared.\n\nSigned-off-by: Roel Kluin \u003croel.kluin@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "0ac6053c4db9369d7b0f9b39c30f4fb04405666b", "tree": "e0dd9cb3dca0ace4cdeaad9f99f11448531e077d", "parents": [ "ff8cb0fd6f195389aefe55d5dac9927d09a9de54" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Fri Jan 02 13:47:20 2009 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jan 02 10:19:40 2009 -0800" }, "message": "tty: PTYs set TTY_DO_WRITE_WAKEUP when they don\u0027t need to\n\nThe write wakeup is done anyway for the poll while DO_WRITE_WAKUP is\ncleared, set and managed by the ldisc layer and is no business of the pty\ncode.\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fc6f6238226e6d1248e1967eae2bf556eaf3ac17", "tree": "07cef0fafd30bd622dac1db4751e10734773c863", "parents": [ "a47d545f5782cbde871b50bdf4a83379ed2da222" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Fri Jan 02 13:43:17 2009 +0000" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Fri Jan 02 10:19:36 2009 -0800" }, "message": "pty: simplify resize\n\nWe have special case logic for resizing pty/tty pairs. We also have a per\ndriver resize method so for the pty case we should use it.\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8dff04ea316125639120c0a565ce0346b892fef7", "tree": "f6c4d0455d951d550ab55cebe109ac526c957011", "parents": [ "335adde689150d2fcf4df3cb26a6fc6740ed1f3e" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Mon Oct 13 10:43:58 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 13 09:51:44 2008 -0700" }, "message": "pty: simplify unix98 allocation\n\nWe need both termios and termios_locked so allocate them as one\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "335adde689150d2fcf4df3cb26a6fc6740ed1f3e", "tree": "93e11b89e96e8baf15a276e4008e08bb5873fb90", "parents": [ "fe9cd962a62cb5f666cf48b9941d3f3cde134254" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Mon Oct 13 10:43:48 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 13 09:51:44 2008 -0700" }, "message": "pty: Fix allocation failure double free\n\nThe updating and moving around of the pty code added a bug where both the\nhelper and caller free the main tty struct (the pty driver must free the\no_tty pair itself however).\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "fe9cd962a62cb5f666cf48b9941d3f3cde134254", "tree": "c493585da2814bc8061c84fd2052a4407105d1e1", "parents": [ "a6f37daa8b892fd29dd71be0de61460a478cb122" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Mon Oct 13 10:43:38 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 13 09:51:43 2008 -0700" }, "message": "pty: Coding style and polish\n\nWe\u0027ve done the heavy lifting now its time to mop up a bit\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "15f1a6338ddd4e69fff965d4b3a0e1bfb7a13d9c", "tree": "301eea94cb514dc12b5070fc4b3ab33d3aab4322", "parents": [ "4a2b5fddd53b80efcb3266ee36e23b8de28e761a" ], "author": { "name": "Sukadev Bhattiprolu", "email": "sukadev@us.ibm.com", "time": "Mon Oct 13 10:42:59 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 13 09:51:43 2008 -0700" }, "message": "Add an instance parameter devpts interfaces\n\nPass-in \u0027inode\u0027 or \u0027tty\u0027 parameter to devpts interfaces. With multiple\ndevpts instances, these parameters will be used in subsequent patches\nto identify the instance of devpts mounted. The parameters also help\nsimplify devpts implementation.\n\nChangelog[v3]:\n\t- minor changes due to merge with ttydev updates\n\t- rename parameters to emphasize they are ptmx or pts inodes\n\t- pass-in tty_struct * to devpts_pty_kill() (this will help\n\t cleanup the get_node() call in a subsequent patch)\n\nSigned-off-by: Sukadev Bhattiprolu \u003csukadev@us.ibm.com\u003e\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "bf970ee46e0fb363c8df4393229121d54330a98e", "tree": "3beb09c369b3459e70689b5f9a35caacf063f116", "parents": [ "73ec06fc5f5c8e1097a7a4a4ab2d7c6c3a007e81" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Mon Oct 13 10:42:39 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 13 09:51:43 2008 -0700" }, "message": "tty: extract the pty init time special cases\n\nThe majority of the remaining init_dev code is pty special cases. We\nrefactor this code into the driver-\u003einstall method.\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "73ec06fc5f5c8e1097a7a4a4ab2d7c6c3a007e81", "tree": "2c244c8b0d853f82e479eaf72ca64d6c9209c6a6", "parents": [ "8b0a88d5912ab549d5adac2c8498ecdaae5319a5" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Mon Oct 13 10:42:29 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 13 09:51:43 2008 -0700" }, "message": "tty: Finish fixing up the init_dev interface to use ERR_PTR\n\nOriginal suggestion and proposal from Sukadev Bhattiprolu.\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "8b0a88d5912ab549d5adac2c8498ecdaae5319a5", "tree": "8ed71420259881fd6d1dd5f5841ffe2f3c5d1fa2", "parents": [ "7d7b93c1452f381350dbaf276a63357fa6559e6d" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Mon Oct 13 10:42:19 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 13 09:51:42 2008 -0700" }, "message": "tty: More driver operations\n\nWe have the lookup operation abstracted which is nice for pty cleanup but\nwe really want to abstract the add/remove entries as well so that we can\npull the pty code out of the tty core and create a clear defined interface\nfor the tty driver table.\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "7d7b93c1452f381350dbaf276a63357fa6559e6d", "tree": "02ce0c37e7fea66d1e8af20111d92171bfc0ff1d", "parents": [ "99f1fe189daf8e99a847e420567e49dd7ee2aae7" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Mon Oct 13 10:42:09 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 13 09:51:42 2008 -0700" }, "message": "tty: kref the tty driver object\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "99f1fe189daf8e99a847e420567e49dd7ee2aae7", "tree": "09db410aa2b32e74086593eb771c75efe553a585", "parents": [ "23499705753ab8b4c6b0b64e6c424a370bd900a1" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Mon Oct 13 10:42:00 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 13 09:51:42 2008 -0700" }, "message": "tty: Clean up the tty_init_dev changes further\n\nFix up the naming, style and extract some bits of code into the driver\nspecific code\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "d81ed10307027e1643a65ab5fe17cc01233d376d", "tree": "e46ac5735124308357f42214a8a26f75dcd3f412", "parents": [ "feebed6515a113eeb33919e9557a8b9710ea627c" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Mon Oct 13 10:41:42 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 13 09:51:42 2008 -0700" }, "message": "tty: Remove more special casing and out of place code\n\nCarry on pushing code out of tty_io when it belongs to other drivers. I\u0027m\nnot 100% happy with some of this and it will be worth revisiting some of the\nexports later when the restructuring work is done.\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "feebed6515a113eeb33919e9557a8b9710ea627c", "tree": "0461178ee0c5e16ea90023e4b6386cb5c57d3391", "parents": [ "bf7a06bcce205705ea5c7675cbb8ea9239ea30a0" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Mon Oct 13 10:41:30 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Mon Oct 13 09:51:42 2008 -0700" }, "message": "tty: shutdown method\n\nRight now there are various drivers that try to use tty-\u003ecount to know when\nthey get the final close. Aristeau Rozanski showed while debugging the vt\nsysfs race that this isn\u0027t entirely safe.\n\nInstead of driver side tricks to work around this introduce a shutdown which\nis called when the tty is being destructed. This also means that the shutdown\nmethod is tied into the refcounting.\n\nUse this to rework the console close/sysfs logic.\n\nRemove lots of special case code from the tty core code. The pty code can now\nhave a shutdown() method that replaces the special case hackery in the tree\nfree up paths.\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "a352def21a642133758b868c71bee12ab34ad5c5", "tree": "95d0f7229f9e4afccdc6fbbf11f7f5c6dd83b0fd", "parents": [ "e1e5770bb63fb9d71619a68f52cb0ba4b2ae58a6" ], "author": { "name": "Alan Cox", "email": "alan@redhat.com", "time": "Wed Jul 16 21:53:12 2008 +0100" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Sun Jul 20 17:12:34 2008 -0700" }, "message": "tty: Ldisc revamp\n\nMove the line disciplines towards a conventional -\u003eops arrangement. For\nthe moment the actual \u0027tty_ldisc\u0027 struct in the tty is kept as part of\nthe tty struct but this can then be changed if it turns out that when it\nall settles down we want to refcount ldiscs separately to the tty.\n\nPull the ldisc code out of /proc and put it with our ldisc code.\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "3e8e88ca053150efdbecb45d8f481cf560ec808d", "tree": "1a763eb645fabf5dfb869c6982bf6c8ab030982f", "parents": [ "f2545a75632d18d62aa287b9e5d207255cc8bffc" ], "author": { "name": "Alan Cox", "email": "alan@lxorguk.ukuu.org.uk", "time": "Wed Apr 30 00:54:10 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 30 08:29:46 2008 -0700" }, "message": "pty: prepare for tty-\u003eops changes\n\nWe are about to change the tty layer to avoid keeping private copies of all\nthe methods in each tty. We have to update the pty layer first as it\ncurrently patches the ioctl method according to the tty type. Use multiple\ntty operations sets instead.\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nAcked-by: \"H. Peter Anvin\" \u003chpa@zytor.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "04f378b198da233ca0aca341b113dc6579d46123", "tree": "696e7bd401125cee71ecaa2047c4273f38732554", "parents": [ "e52384426064bca0669a954736206adca7595d48" ], "author": { "name": "Alan Cox", "email": "alan@lxorguk.ukuu.org.uk", "time": "Wed Apr 30 00:53:29 2008 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@linux-foundation.org", "time": "Wed Apr 30 08:29:40 2008 -0700" }, "message": "tty: BKL pushdown\n\n- Push the BKL down into the line disciplines\n- Switch the tty layer to unlocked_ioctl\n- Introduce a new ctrl_lock spin lock for the control bits\n- Eliminate much of the lock_kernel use in n_tty\n- Prepare to (but don\u0027t yet) call the drivers with the lock dropped\n on the paths that historically held the lock\n\nBKL now primarily protects open/close/ldisc change in the tty layer\n\n[jirislaby@gmail.com: a couple of fixes]\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Jiri Slaby \u003cjirislaby@gmail.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "35834ca1e4bda56d252aa2024a283d631f0e5ac6", "tree": "4f73a27db7de4ced7b39907fe958498a3ff7ef4b", "parents": [ "25398a158d86b993fa5bf36f5a6752134b584d60" ], "author": { "name": "Eric W. Biederman", "email": "ebiederm@xmission.com", "time": "Thu Oct 18 03:05:31 2007 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Thu Oct 18 14:37:23 2007 -0700" }, "message": "sysctl: simplify the pty sysctl logic\n\nInstead of having a bunch of ifdefs in sysctl.c move all of the pty sysctl\nlogic into drivers/char/pty.c\n\nAs well as cleaning up the logic this prevents sysctl_check_table from\ncomplaining that the root table has a NULL data pointer on something with\ngeneric methods.\n\nSigned-off-by: Eric W. Biederman \u003cebiederm@xmission.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "dc8c85871c9728c5fddca6854a191fd41eb9438c", "tree": "d56e7a4c4d797d6696f24ef374cfd35865d5a5dd", "parents": [ "45aaae9c51d768d5a8fd53fb372b1eb714f37691" ], "author": { "name": "Kay Sievers", "email": "kay.sievers@vrfy.org", "time": "Wed Aug 15 12:25:38 2007 +0200" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Fri Oct 12 14:51:09 2007 -0700" }, "message": "PTY: add kernel parameter to overwrite legacy pty count\n\nSigned-off-by: Kay Sievers \u003ckay.sievers@vrfy.org\u003e\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n\n" }, { "commit": "cd354f1ae75e6466a7e31b727faede57a1f89ca5", "tree": "09a2da1672465fefbc7fe06ff4e6084f1dd14c6b", "parents": [ "3fc605a2aa38899c12180ca311f1eeb61a6d867e" ], "author": { "name": "Tim Schmielau", "email": "tim@physik3.uni-rostock.de", "time": "Wed Feb 14 00:33:14 2007 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.linux-foundation.org", "time": "Wed Feb 14 08:09:54 2007 -0800" }, "message": "[PATCH] remove many unneeded #includes of sched.h\n\nAfter Al Viro (finally) succeeded in removing the sched.h #include in module.h\nrecently, it makes sense again to remove other superfluous sched.h includes.\nThere are quite a lot of files which include it but don\u0027t actually need\nanything defined in there. Presumably these includes were once needed for\nmacros that used to live in sched.h, but moved to other header files in the\ncourse of cleaning it up.\n\nTo ease the pain, this time I did not fiddle with any header files and only\nremoved #includes from .c-files, which tend to cause less trouble.\n\nCompile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,\narm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,\nallmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all\nconfigs in arch/arm/configs on arm. I also checked that no new warnings were\nintroduced by the patch (actually, some warnings are removed that were emitted\nby unnecessarily included header files).\n\nSigned-off-by: Tim Schmielau \u003ctim@physik3.uni-rostock.de\u003e\nAcked-by: Russell King \u003crmk+kernel@arm.linux.org.uk\u003e\nSigned-off-by: Andrew Morton \u003cakpm@linux-foundation.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@linux-foundation.org\u003e\n" }, { "commit": "606d099cdd1080bbb50ea50dc52d98252f8f10a1", "tree": "80d17450a5fb78effce3f4312f672c058658e004", "parents": [ "edc6afc5496875a640bef0913604be7550c1795d" ], "author": { "name": "Alan Cox", "email": "alan@lxorguk.ukuu.org.uk", "time": "Fri Dec 08 02:38:45 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@woody.osdl.org", "time": "Fri Dec 08 08:28:57 2006 -0800" }, "message": "[PATCH] tty: switch to ktermios\n\nThis is the grungy swap all the occurrences in the right places patch that\ngoes with the updates. At this point we have the same functionality as\nbefore (except that sgttyb() returns speeds not zero) and are ready to\nbegin turning new stuff on providing nobody reports lots of bugs\n\nIf you are a tty driver author converting an out of tree driver the only\nimpact should be termios-\u003ektermios name changes for the speed/property\nsetting functions from your upper layers.\n\nIf you are implementing your own TCGETS function before then your driver\nwas broken already and its about to get a whole lot more painful for you so\nplease fix it 8)\n\nAlso fill in c_ispeed/ospeed on init for most devices, although the current\ncode will do this for you anyway but I\u0027d like eventually to lose that extra\nparanoia\n\n[akpm@osdl.org: bluetooth fix]\n[mp3@de.ibm.com: sclp fix]\n[mp3@de.ibm.com: warning fix for tty3270]\n[hugh@veritas.com: fix tty_ioctl powerpc build]\n[jdike@addtoit.com: uml: fix -\u003eset_termios declaration]\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Martin Peschke \u003cmp3@de.ibm.com\u003e\nAcked-by: Peter Oberparleiter \u003coberpar@de.ibm.com\u003e\nCc: Cornelia Huck \u003ccornelia.huck@de.ibm.com\u003e\nSigned-off-by: Hugh Dickins \u003chugh@veritas.com\u003e\nSigned-off-by: Jeff Dike \u003cjdike@addtoit.com\u003e\nCc: Paolo \u0027Blaisorblade\u0027 Giarrusso \u003cblaisorblade@yahoo.it\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "b68e31d0ebbcc909d1941f9f230c9d062a3a13d3", "tree": "b32902e5de02081cbb9eca49d7bb0b444e2b4f23", "parents": [ "ed97bd37efd8ff7398d3a7eedf4bcbf245f5dad3" ], "author": { "name": "Jeff Dike", "email": "jdike@addtoit.com", "time": "Mon Oct 02 02:17:18 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Mon Oct 02 07:57:14 2006 -0700" }, "message": "[PATCH] const struct tty_operations\n\nAs part of an SMP cleanliness pass over UML, I consted a bunch of\nstructures in order to not have to document their locking. One of these\nstructures was a struct tty_operations. In order to const it in UML\nwithout introducing compiler complaints, the declaration of\ntty_set_operations needs to be changed, and then all of its callers need to\nbe fixed.\n\nThis patch declares all struct tty_operations in the tree as const. In all\ncases, they are static and used only as input to tty_set_operations. As an\nextra check, I ran an i386 allyesconfig build which produced no extra\nwarnings.\n\n53 drivers are affected. I checked the history of a bunch of them, and in\nmost cases, there have been only a handful of maintenance changes in the\nlast six months. serial_core.c was the busiest one that I looked at.\n\nSigned-off-by: Jeff Dike \u003cjdike@addtoit.com\u003e\nAcked-by: Alan Cox \u003calan@redhat.com\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "6ab3d5624e172c553004ecc862bfeac16d9d68b7", "tree": "6d98881fe91fd9583c109208d5c27131b93fa248", "parents": [ "e02169b682bc448ccdc819dc8639ed34a23cedd8" ], "author": { "name": "Jörn Engel", "email": "joern@wohnheim.fh-wedel.de", "time": "Fri Jun 30 19:25:36 2006 +0200" }, "committer": { "name": "Adrian Bunk", "email": "bunk@stusta.de", "time": "Fri Jun 30 19:25:36 2006 +0200" }, "message": "Remove obsolete #include \u003clinux/config.h\u003e\n\nSigned-off-by: Jörn Engel \u003cjoern@wohnheim.fh-wedel.de\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\n" }, { "commit": "602cada851b28c5792339786efe872fbdc1f5d41", "tree": "233d474b74d6038b5bb54a07ad91dd1bb10b0218", "parents": [ "82991c6f2c361acc17279b8124d9bf1878973435", "fee68d1cc0d9bd863e51c16cdcd707737b16bb38" ], "author": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jun 29 14:19:21 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Thu Jun 29 14:19:21 2006 -0700" }, "message": "Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6\n\n* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6: (22 commits)\n [PATCH] devfs: Remove it from the feature_removal.txt file\n [PATCH] devfs: Last little devfs cleanups throughout the kernel tree.\n [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV\n [PATCH] devfs: Remove the tty_driver devfs_name field as it\u0027s no longer needed\n [PATCH] devfs: Remove the line_driver devfs_name field as it\u0027s no longer needed\n [PATCH] devfs: Remove the videodevice devfs_name field as it\u0027s no longer needed\n [PATCH] devfs: Remove the gendisk devfs_name field as it\u0027s no longer needed\n [PATCH] devfs: Remove the miscdevice devfs_name field as it\u0027s no longer needed\n [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree\n [PATCH] devfs: Remove devfs_remove() function from the kernel tree\n [PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree\n [PATCH] devfs: Remove devfs_mk_bdev() function from the kernel tree\n [PATCH] devfs: Remove devfs_mk_symlink() function from the kernel tree\n [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree\n [PATCH] devfs: Remove devfs_*_tape() functions from the kernel tree\n [PATCH] devfs: Remove devfs support from the sound subsystem\n [PATCH] devfs: Remove devfs support from the ide subsystem.\n [PATCH] devfs: Remove devfs support from the serial subsystem\n [PATCH] devfs: Remove devfs from the init code\n [PATCH] devfs: Remove devfs from the partition code\n ...\n" }, { "commit": "817d6d3bceaf34c99f5343820f9b9e6021f0655c", "tree": "651104833124262db46c2a372b7adb55289cd8dd", "parents": [ "e0ac4761fa52acda90f9f53819c81474b511e3af" ], "author": { "name": "Paul Fulghum", "email": "paulkf@microgate.com", "time": "Wed Jun 28 04:26:47 2006 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Wed Jun 28 14:59:05 2006 -0700" }, "message": "[PATCH] remove TTY_DONT_FLIP\n\nRemove TTY_DONT_FLIP tty flag. This flag was introduced in 2.1.X kernels\nto prevent the N_TTY line discipline functions read_chan() and\nn_tty_receive_buf() from running at the same time. 2.2.15 introduced\ntty-\u003eread_lock to protect access to the N_TTY read buffer, which is the\nonly state requiring protection between these two functions.\n\nThe current TTY_DONT_FLIP implementation is broken for SMP, and is not\nuniversally honored by drivers that send data directly to the line\ndiscipline receive_buf function.\n\nBecause TTY_DONT_FLIP is not necessary, is broken in implementation, and is\nnot universally honored, it is removed.\n\nSigned-off-by: Paul Fulghum \u003cpaulkf@microgate.com\u003e\nCc: Alan Cox \u003calan@lxorguk.ukuu.org.uk\u003e\nCc: Theodore Ts\u0027o \u003ctytso@mit.edu\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "331b831983f9d706f4a40d08a996d5c2c7a6ea7b", "tree": "9d47d5f8d6f882d26c8deade0e44442cebf2e288", "parents": [ "f4eaa37017a5a68f67ef86729508022c13fb8e6d" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jun 20 21:15:16 2005 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jun 26 12:25:09 2006 -0700" }, "message": "[PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV\n\nI\u0027ve always found this flag confusing. Now that devfs is no longer around, it\nhas been renamed, and the documentation for when this flag should be used has\nbeen updated.\n\nAlso fixes all drivers that use this flag.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n" }, { "commit": "f4eaa37017a5a68f67ef86729508022c13fb8e6d", "tree": "7a2b03b575d77922c1e0bf1da7b74e87451462c6", "parents": [ "264f48646e6829b4d00a0e058452578318e6fb15" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jun 20 21:15:16 2005 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jun 26 12:25:09 2006 -0700" }, "message": "[PATCH] devfs: Remove the tty_driver devfs_name field as it\u0027s no longer needed\n\nAlso fixes all drivers that set this field.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n" }, { "commit": "ff23eca3e8f613034e0d20ff86f6a89b62f5a14e", "tree": "826285f5daa660001d38cac6baaf34411fd40131", "parents": [ "8ab5e4c15b53e147c08031a959d9f776823dbe73" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jun 20 21:15:16 2005 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jun 26 12:25:08 2006 -0700" }, "message": "[PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree\n\nAlso fixes up all files that #include it.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n" }, { "commit": "95dc112a5770dc670a1b45a3d9ee346fdd2b2697", "tree": "899cd99bdc928ade94ddc7b003b0de7d275cac48", "parents": [ "0e6c62da7cd929b0389fc4a7e41464bb738647dc" ], "author": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jun 20 21:15:16 2005 -0700" }, "committer": { "name": "Greg Kroah-Hartman", "email": "gregkh@suse.de", "time": "Mon Jun 26 12:25:06 2006 -0700" }, "message": "[PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree\n\nRemoves the devfs_mk_dir() function and all callers of it.\n\nSigned-off-by: Greg Kroah-Hartman \u003cgregkh@suse.de\u003e\n" }, { "commit": "33f0f88f1c51ae5c2d593d26960c760ea154c2e2", "tree": "f53a38cf49406863f079d74d0e8f91b276f7c1a9", "parents": [ "6ed80991a2dce4afc113be35089c564d62fa1f11" ], "author": { "name": "Alan Cox", "email": "alan@lxorguk.ukuu.org.uk", "time": "Mon Jan 09 20:54:13 2006 -0800" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Tue Jan 10 08:01:59 2006 -0800" }, "message": "[PATCH] TTY layer buffering revamp\n\nThe API and code have been through various bits of initial review by\nserial driver people but they definitely need to live somewhere for a\nwhile so the unconverted drivers can get knocked into shape, existing\ndrivers that have been updated can be better tuned and bugs whacked out.\n\nThis replaces the tty flip buffers with kmalloc objects in rings. In the\nnormal situation for an IRQ driven serial port at typical speeds the\nbehaviour is pretty much the same, two buffers end up allocated and the\nkernel cycles between them as before.\n\nWhen there are delays or at high speed we now behave far better as the\nbuffer pool can grow a bit rather than lose characters. This also means\nthat we can operate at higher speeds reliably.\n\nFor drivers that receive characters in blocks (DMA based, USB and\nespecially virtualisation) the layer allows a lot of driver specific\ncode that works around the tty layer with private secondary queues to be\nremoved. The IBM folks need this sort of layer, the smart serial port\npeople do, the virtualisers do (because a virtualised tty typically\noperates at infinite speed rather than emulating 9600 baud).\n\nFinally many drivers had invalid and unsafe attempts to avoid buffer\noverflows by directly invoking tty methods extracted out of the innards\nof work queue structs. These are no longer needed and all go away. That\nfixes various random hangs with serial ports on overflow.\n\nThe other change in here is to optimise the receive_room path that is\nused by some callers. It turns out that only one ldisc uses receive room\nexcept asa constant and it updates it far far less than the value is\nread. We thus make it a variable not a function call.\n\nI expect the code to contain bugs due to the size alone but I\u0027ll be\nwatching and squashing them and feeding out new patches as it goes.\n\nBecause the buffers now dynamically expand you should only run out of\nbuffering when the kernel runs out of memory for real. That means a lot of\nthe horrible hacks high performance drivers used to do just aren\u0027t needed any\nmore.\n\nDescription:\n\ntty_insert_flip_char is an old API and continues to work as before, as does\ntty_flip_buffer_push() [this is why many drivers dont need modification]. It\ndoes now also return the number of chars inserted\n\nThere are also\n\ntty_buffer_request_room(tty, len)\n\nwhich asks for a buffer block of the length requested and returns the space\nfound. This improves efficiency with hardware that knows how much to\ntransfer.\n\nand tty_insert_flip_string_flags(tty, str, flags, len)\n\nto insert a string of characters and flags\n\nFor a smart interface the usual code is\n\n len \u003d tty_request_buffer_room(tty, amount_hardware_says);\n tty_insert_flip_string(tty, buffer_from_card, len);\n\nMore description!\n\nAt the moment tty buffers are attached directly to the tty. This is causing a\nlot of the problems related to tty layer locking, also problems at high speed\nand also with bursty data (such as occurs in virtualised environments)\n\nI\u0027m working on ripping out the flip buffers and replacing them with a pool of\ndynamically allocated buffers. This allows both for old style \"byte I/O\"\ndevices and also helps virtualisation and smart devices where large blocks of\ndata suddenely materialise and need storing.\n\nSo far so good. Lots of drivers reference tty-\u003eflip.*. Several of them also\ncall directly and unsafely into function pointers it provides. This will all\nbreak. Most drivers can use tty_insert_flip_char which can be kept as an API\nbut others need more.\n\nAt the moment I\u0027ve added the following interfaces, if people think more will\nbe needed now is a good time to say\n\n int tty_buffer_request_room(tty, size)\n\nTry and ensure at least size bytes are available, returns actual room (may be\nzero). At the moment it just uses the flipbuf space but that will change.\nRepeated calls without characters being added are not cumulative. (ie if you\ncall it with 1, 1, 1, and then 4 you\u0027ll have four characters of space. The\nother functions will also try and grow buffers in future but this will be a\nmore efficient way when you know block sizes.\n\n int tty_insert_flip_char(tty, ch, flag)\n\nAs before insert a character if there is room. Now returns 1 for success, 0\nfor failure.\n\n int tty_insert_flip_string(tty, str, len)\n\nInsert a block of non error characters. Returns the number inserted.\n\n int tty_prepare_flip_string(tty, strptr, len)\n\nAdjust the buffer to allow len characters to be added. Returns a buffer\npointer in strptr and the length available. This allows for hardware that\nneeds to use functions like insl or mencpy_fromio.\n\nSigned-off-by: Alan Cox \u003calan@redhat.com\u003e\nCc: Paul Fulghum \u003cpaulkf@microgate.com\u003e\nSigned-off-by: Hirokazu Takata \u003ctakata@linux-m32r.org\u003e\nSigned-off-by: Serge Hallyn \u003cserue@us.ibm.com\u003e\nSigned-off-by: Jeff Dike \u003cjdike@addtoit.com\u003e\nSigned-off-by: John Hawkes \u003chawkes@sgi.com\u003e\nSigned-off-by: Martin Schwidefsky \u003cschwidefsky@de.ibm.com\u003e\nSigned-off-by: Adrian Bunk \u003cbunk@stusta.de\u003e\nSigned-off-by: Andrew Morton \u003cakpm@osdl.org\u003e\nSigned-off-by: Linus Torvalds \u003ctorvalds@osdl.org\u003e\n" }, { "commit": "ff55fe2075e3901db4dbdc00e0b44a71bef97afd", "tree": "c6dfc8ba5d04fda4c5cb15cdebd5425ab674f8df", "parents": [ "69ac59647e66c1b53fb98fe8b6d0f2099cffad60" ], "author": { "name": "Jason Baron", "email": "jbaron@redhat.com", "time": "Fri Sep 09 13:01:57 2005 -0700" }, "committer": { "name": "Linus Torvalds", "email": "torvalds@g5.osdl.org", "time": "Fri Sep 09 13:57:31 2005 -0700" }, "message": "[PATCH] pty_chars_in_buffer oops fix\n\nThe idea of this patch is to lock both sides of a ptmx/pty pair during line\ndiscipline changing. This is needed to ensure that say a poll on one side of\nthe pty doesn\u0027t occur while the line discipline is actively being changed.\nThis resulted in an oops reported on lkml, see:\n\n\thttp://marc.theaimsgroup.com/?l\u003dlinux-kernel\u0026m\u003d111342171410005\u0026w\u003d2\n\nA \u0027hacky\u0027 approach was previously implmemented which served to eliminate the\npoll vs. line discipline changing race. However, this patch takes a more\ngeneral approach to the issue. The patch only adds locking on a less often\nused path, the line-discipline changing path, as opposed to locking the\nptmx/pty pair on read/write/poll paths.\n\nThe patch below, takes both ldisc locks in either order b/c the locks are both\ntaken under the same spinlock(). I thought about locking the ptmx/pty\nseparately, such as master always first but that introduces a 3 way deadlock.\nFor example, process 1 does a blocking read on the slave side. Then, process\n2 does an ldisc change on the slave side, which acquires the master ldisc lock\nbut not the slave\u0027s. Finally, process 3 does a write which blocks on the\nprocess 2\u0027s ldisc reference.\n\nThis patch does introduce some changes in semantics. For example, a line\ndiscipline change on side \u0027a\u0027 of a ptmx/pty pair, will now wait for a\nread/write to complete on the other side, or side \u0027b\u0027. The current behavior\nis to simply wait for any read/writes on only side \u0027a\u0027, not both sides \u0027a\u0027 and\n\u0027b\u0027. I think this behavior makes sense, but I wanted to point it out.\n\nI\u0027ve tested the patch with a bunch of read/write/poll while changing the line\ndiscipline out from underneath.\n\nThis patch obviates the need for the above \"hide the problem\" patch.\n\nSigned-off-by: Jason Baron \u003cjbaron@redhat.com\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" } ] }