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2005-09-09[PATCH] dvb: usb: digitv: support for nxt6000 demodSvante Olofsson
Add support for the NXT6000-based digitv-box. Add .get_tune_settings callback for the NXT6000 to have a min_tune_delay of 500ms. Signed-off-by: Svante Olofsson <svante@agentum.com> Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: usb: core: change dvb_usb_device_init() APIPatrick Boettcher
Change the init call to optionally return the new dvb_usb_device directly. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: usb: dtt200u: add proper device namesPatrick Boettcher
Added names for clones of the DVB-T stick. Whitespace cleanups. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: usb: dtt200u: copy frontend_ops before modifyingYe Jianjun (Joey
Fix: copy frontend_ops before modifying Signed-off-by: Ye Jianjun (Joey) <joeyye@trident.com.cn> Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: usb: removed empty module_init/exit callsAndreas Oberritter
Removed empty module_init/exit calls. Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: usb: dibusb: Kworld Xpert DVB-T USB2.0 supportPatrick Boettcher
Add USB IDs of the Kworld Xpert DVB-T USB2.0 (clone of the ADStech box). Thanks to Marcus Hagn for testing. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: usb: add TwinhanDTV StarBox supportPatrick Boettcher
Add driver for the TwinhanDTV StarBox and clones. Thanks to Ralph Metzler for his initial work on this box and thanks to Twinhan for their support. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: frontend: or51132: remove bogus optimization attemptMac Michaels
This fix has also been applied to lgdt330x. There is an optimization that keeps track of the frequency tuned by the digital decoder. The digital driver does not set the frequency if it has not changed since it was tuned. The analog tuner driver knows nothing about the frequency saved by the digital driver. When the frequency is set using the video4linux code with tvtime, the hardware get changed but the digital driver's state does not get updated. Switch back to the same digital channel and the driver finds no change in frequency so the tuner is not reset to the digital frequency. The work around is to remove the check and always set the tuner to the specified frequency. Signed-off-by: Mac Michaels <wmichaels1@earthlink.net> Signed-off-by: Michael Krufky <mkrufky@m1k.net> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: frontend: stv0297: QAM128 tuning improvementPatrick Boettcher
while investigating the QAM_128-issue with the stv0297-driver for the Cablestar (which is not the same as the one in dvb-kernel CVS, yet), I fixed it, not by increasing the timeout, but by disabling the corner-detection for QAM_128 and higher. This patch has been tested on dvb-kernel cvs, and has been reported to work by multiple users. Some cards still need timeout increase on top of this patch. This will be addressed later. Signed-off-by: Patrick Boettcher <pb@linuxtv.org> Signed-off-by: Michael Krufky <mkrufky@m1k.net> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: frontend: cx24110: clean up timeout handling.Johannes Stezenbach
Clean up timeout handling. Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: frontend: cx24110: another DiSEqC fixAdam Szalkowski
Fix DiSEqC problems. Signed-off-by: Adam Szalkowski <adam@szalkowski.de> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: frontend: cx24110: DiSEqC fixJohannes Stezenbach
Fix DiSEqC switching (one bug fix suggested by Peter Hettkamp, and one experimentally determined msleep(30) suggested by Adam Szalkowski). Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: frontend: ves1820: improve tuningJohannes Stezenbach
Reset acgconf register after tuning to improve locking, as suggested by Marco Schluessler. Minor cleanups in ves1820_init(). Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: frontend: tda1004x: fix SNR readingAndrew de Quincey
Fix SNR reading Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: frontend: stv0299: support reading both BER and UCBLOCKSAndrew de Quincey
Allow the stv0299 to read the BER and UCBLOCKS. Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: frontend: s5h1420: fixesAndrew de Quincey
Misc. fixes. Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: frontend: stv0299: pass i2c bus to pll callbackAndreas Oberritter
Pass a pointer to the i2c bus to the pll callbacks (stv0299 only). It was not possible to tell which i2c bus should be used if an adapter has multiple frontends on multiple i2c buses. Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: frontend: mt352: fix signal strength readingBarry Scott
Fix two problems with the signal strength value in the mt352.c frontend: 1. the 4 most significant bits are zeroed - shift and mask wrong way round 2. need to align the 12 bits from the registers at the top of the 16 bit returned value - otherwise the range is not 0 to 0xffff its 0xf000 to 0xffff Signed-off-by: Barry Scott <barry.scott@onelan.co.uk> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: core: CI timeout fixDominique Dumont
Patch from Dominique Dumont to get the SCM Red Viaccess CAM working with the budget-ci. Signed-off-by: Dominique Dumont <domi.dumont@free.fr> Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: core: dvb_demux formatting fixesAndreas Oberritter
Formatting fixes (Lindent + some handwork). Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: core: dvb_demux: use INIT_LIST_HEADAndreas Oberritter
Use INIT_LIST_HEAD for frontend_list. Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: core: dvb_demux: remove more unused cruftAndreas Oberritter
Removed more unused variables and constants. Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: core: dvb_demux: remove unsused descramble callbacksAndreas Oberritter
Removed unused descramble_mac_address and descramble_section_payload callbacks. Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: core: dvb_demux: remove unused cruftAndreas Oberritter
Removed some useless functions and variables. Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: core: dvb_demux: fix continuity counter error handlingAndreas Oberritter
Don't return immediately from dvb_dmx_swfilter_section_packet() if CC is not ok. Otherwise a new feed drops all packets until the first packet with CC=0 arrives. Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: core: glue code for DMX_GET_CAPS and DMX_SET_SOURCEAndreas Oberritter
Glue code for DMX_GET_CAPS and DMX_SET_SOURCE ioctls. Signed-off-by: Andreas Oberritter <obi@linuxtv.org> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: avoid building empty built-in.oJohannes Stezenbach
Don't build empty built-in.o when DVB/V4L is not configured. Thanks to Sam Ravnborg and Keith Owens. Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: remove version.h dependenciesOlaf Hering
Remove all #include <linux/version.h> and all references to LINUX_VERSION_CODE and KERNEL_VERSION. Based on patch by Olaf Hering. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] dvb: email address updateJohannes Stezenbach
Update email address of Peter Hettkamp. Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] fix reboot via keyboard controller resetTruxton Fulton
I have a system (Biostar IDEQ210M mini-pc with a VIA chipset) which will not reboot unless a keyboard is plugged in to it. I have tried all combinations of the kernel "reboot=x,y" flags to no avail. Rebooting by any method will leave the system in a wedged state (at the "Restarting system" message). I finally tracked the problem down to the machine's refusal to fully reboot unless the keyboard controller status register had bit 2 set. This is the "System flag" which when set, indicates successful completion of the keyboard controller self-test (Basic Assurance Test, BAT). I suppose that something is trying to protect against sporadic reboots unless the keyboard controller is in a good state (a keyboard is present), but I need this machine to be headless. I found that setting the system flag (via the command byte) before giving the "pulse reset line" command will allow the reboot to proceed. The patch is simple, and I think it should be fine for everybody whether they have this type of machine or not. This affects the "hard" reboot (as done when the kernel boot flags "reboot=c,h" are used). Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclinkmp.c: fix async internal loopbackPaul Fulghum
Fix async internal loopback by not using enable_loopback function which reprograms clocking and should only be used for hdlc mode. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclinkmp.c: add statistics clearPaul Fulghum
Add ability to clear statistics. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclinkmp.c: disable burst transfersPaul Fulghum
Disable burst transfers on adapter local bus. Hardware feature does not work on latest version of adapter. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclinkmp.c: fix double mapping of signalsPaul Fulghum
Serial signals were incorrectly mapped twice to events. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclink.c: add loopback to async modePaul Fulghum
Add internal loopback support for asynchronous mode operation. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclink.c: add clear statsPaul Fulghum
Add the ability to clear statistics. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] synclink.c: compiler optimisation fixPaul Fulghum
Make some fields of DMA descriptor volatile to prevent compiler optimizations. Signed-off-by: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] deadline: clean up question mark operatorAndrew Morton
That ?: trick gives us the creeps. Cc: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] remove unnecessary handle_IRQ_event() prototypesKenji Kaneshige
The function prototype for handle_IRQ_event() in a few architctures is not needed because they use GENERIC_HARDIRQ. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] fix for cpusets minor problemKUROSAWA Takahiro
This patch fixes minor problem that the CPUSETS have when files in the cpuset filesystem are read after lseek()-ed beyond the EOF. Signed-off-by: KUROSAWA Takahiro <kurosawa@valinux.co.jp> Acked-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] aio: kiocb locking to serialise retry and cancelBenjamin LaHaise
Implement a per-kiocb lock to serialise retry operations and cancel. This is done using wait_on_bit_lock() on the KIF_LOCKED bit of kiocb->ki_flags. Also, make the cancellation path lock the kiocb and subsequently release all references to it if the cancel was successful. This version includes a fix for the deadlock with __aio_run_iocbs. Signed-off-by: Benjamin LaHaise <bcrl@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] change io_cancel return code for no cancel caseWendy Cheng
Note that other than few exceptions, most of the current filesystem and/or drivers do not have aio cancel specifically defined (kiob->ki_cancel field is mostly NULL). However, sys_io_cancel system call universally sets return code to -EAGAIN. This gives applications a wrong impression that this call is implemented but just never works. We have customer inquires about this issue. Changed by Benjamin LaHaise to EINVAL instead of ENOSYS Signed-off-by: S. Wendy Cheng <wcheng@redhat.com> Acked-by: Benjamin LaHaise <bcrl@kvack.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] cs89x0: add netpoll supportDeepak Saxena
Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Cc: Matt Mackall <mpm@selenic.com> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] bfs: fix endianness, signedness; add trivial bugfixAndrew Stribblehill
* Makes BFS code endianness-clean. * Fixes some signedness warnings. * Fixes a problem in fs/bfs/inode.c:164 where inodes not synced to disk don't get fully marked as clean. Here's how to reproduce it: # mount -o loop -t bfs /bfs.img /mnt # df -i /mnt Filesystem Inodes IUsed IFree IUse% Mounted on /bfs.img 48 1 47 3% /mnt # df -k /mnt Filesystem 1K-blocks Used Available Use% Mounted on /bfs.img 512 5 508 1% /mnt # cp 60k-archive.zip /mnt/mt.zip # df -k /mnt Filesystem 1K-blocks Used Available Use% Mounted on /bfs.img 512 65 447 13% /mnt # df -i /mnt Filesystem Inodes IUsed IFree IUse% Mounted on /bfs.img 48 2 46 5% /mnt # rm /mnt/mt.zip # echo $? 0 [If the unlink happens before the buffers flush, the following happens:] # df -i /mnt Filesystem Inodes IUsed IFree IUse% Mounted on /bfs.img 48 2 46 5% /mnt # df -k /mnt Filesystem 1K-blocks Used Available Use% Mounted on /bfs.img 512 65 447 13% /mnt fs/bfs/bfs.h | 1 Signed-off-by: Andrew Stribblehill <ads@wompom.org> Cc: <tigran@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] Prefetch kernel stacks to speed up context switchChen, Kenneth W
For architecture like ia64, the switch stack structure is fairly large (currently 528 bytes). For context switch intensive application, we found that significant amount of cache misses occurs in switch_to() function. The following patch adds a hook in the schedule() function to prefetch switch stack structure as soon as 'next' task is determined. This allows maximum overlap in prefetch cache lines for that structure. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] fix disassociate_ctty vs. fork raceJason Baron
Race is as follows. Process A forks process B, both being part of the same session. Then, A calls disassociate_ctty while B forks C: A B ==== ==== fork() copy_signal() dissasociate_ctty() .... attach_pid(p, PIDTYPE_SID, p->signal->session); Now, C can have current->signal->tty pointing to a freed tty structure, as it hasn't yet been added to the session group (to have its controlling tty cleared on the diassociate_ctty() call). This has shown up as an oops but could be even more serious. I haven't tried to create a test case, but a customer has verified that the patch below resolves the issue, which was occuring quite frequently. I'll try and post the test case if i can. The patch simply checks for a NULL tty *after* it has been attached to the proper session group and clears it as necessary. Alternatively, we could simply do the tty assignment after the the process is added to the proper session group. Signed-off-by: Jason Baron <jbaron@redhat.com> Cc: Roland McGrath <roland@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] autofs: fix "busy inodes after umount..."Alexander Krizhanovsky
This patch for old autofs (version 3) cleans dentries which are not putted after killing the automount daemon (it's analogue of recent patch for autofs4). Signed-off-by: Alexander Krizhanovsky <klx@yandex.ru> Cc: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] vga text console and stty cols/rowsSamuel Thibault
Some people use 66-cells braille devices for reading the console, and hence would like to reduce the width of the screen by using: stty cols 66 However, the vga text console doesn't behave correctly: the 14 first characters of the second line are put on the right of the first line and so forth. Here is a patch to correct that. It corrects the disp_end and offset registers of the vga board on console resize and console switch. On usual screens, you then correctly get a right and/or bottom blank margin. On some laptop panels, the output is resized so that text actually gets magnified, which can be great for some people (see http://dept-info.labri.fr/~thibault/ls.jpg ). Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] pty_chars_in_buffer oops fixJason Baron
The idea of this patch is to lock both sides of a ptmx/pty pair during line discipline changing. This is needed to ensure that say a poll on one side of the pty doesn't occur while the line discipline is actively being changed. This resulted in an oops reported on lkml, see: http://marc.theaimsgroup.com/?l=linux-kernel&m=111342171410005&w=2 A 'hacky' approach was previously implmemented which served to eliminate the poll vs. line discipline changing race. However, this patch takes a more general approach to the issue. The patch only adds locking on a less often used path, the line-discipline changing path, as opposed to locking the ptmx/pty pair on read/write/poll paths. The patch below, takes both ldisc locks in either order b/c the locks are both taken under the same spinlock(). I thought about locking the ptmx/pty separately, such as master always first but that introduces a 3 way deadlock. For example, process 1 does a blocking read on the slave side. Then, process 2 does an ldisc change on the slave side, which acquires the master ldisc lock but not the slave's. Finally, process 3 does a write which blocks on the process 2's ldisc reference. This patch does introduce some changes in semantics. For example, a line discipline change on side 'a' of a ptmx/pty pair, will now wait for a read/write to complete on the other side, or side 'b'. The current behavior is to simply wait for any read/writes on only side 'a', not both sides 'a' and 'b'. I think this behavior makes sense, but I wanted to point it out. I've tested the patch with a bunch of read/write/poll while changing the line discipline out from underneath. This patch obviates the need for the above "hide the problem" patch. Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-09[PATCH] alpha: process_reloc_for_got confuses r_offset and r_addendChaskiel Grundman
arch/alpha/kernel/module.c:process_reloc_for_got(), which figures out how big the .got section for a module should be, appears to be confusing r_offset (the file offset that the relocation needs to be applied to) with r_addend (the offset of the relocation's actual target address from the address of the relocation's symbol). Because of this, one .got entry is allocated for each relocation instead of one each unique symbol/addend. In the module I am working with, this causes the .got section to be almost 10 times larger than it needs to be (75544 bytes instead of 7608 bytes). As the .got is accessed with global-pointer-relative instructions, it needs to be within the 64k gp "zone", and a 75544 byte .got clearly does not fit. The result of this is that relocation overflows are detected during module load and the load is aborted. Change struct got_entry/process_reloc_for_got to fix this. Acked-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>