- 20 Oct, 2004 40 commits
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Neil Brown authored
Reference-counting the nfsd4 stateowner structs will let us fix a race and simplify some of the xdr code a bit, and may also help us make the nfsd4 locking a little more fine-grained in the future. Signed-off-by:
J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by:
Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Neil Brown authored
Make sure getxattr inode op is non-NULL before calling it. Also, security hook should probably be called before calling the getxattr op the first time. Signed-off-by:
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Neil Brown authored
The ->getxattr op doesn't take the i_sem (see Documentation/filesystems/Locking) Signed-off-by:
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Neil Brown authored
Separate out the little bit of logic in fh_verify that checks the i_mode into a separate function. This is nicely encapsulated, fh_verify() is overly long anyway, and this change helps make a subsequent nfs4 named attribute change clearer. Signed-off-by:
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Neil Brown authored
Bug Fix: Non NFSD conflicting byte-range locks were causing an Oops. Encode a zero length owner and zero clientid for non NFSD conflicting locks in the lock_denied response. Signed-off-by:
Andy Adamson <andros@umich.edu> Signed-off-by:
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Andrew Morton authored
Kconfig barfs if it doesn't have leading spaces in the help. Signed-off-by:
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Martin Schlemmer authored
Attached is a patch that adds CONFIG_INITRAMFS_SOURCE, enabling you to either specify a file as cpio_list, or a directory to generate a list from. It depreciate the INITRAMFS_LIST environment variable introduced not long ago. There are some issues (suggestions/patches welcome) that I am not sure about: 1) I put the menu entry under block devices, but I am not sure if this is the correct location? 2) There might be a better (or more correct) way to do this with kbuild? 3) Variable names and especially help text needs some love. 4) I am not sure if I am duplicating work in progress? Signed-off-by:
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Thayne Harbaugh authored
This patch makes gen_init_cpio generate the initramfs_data.cpio from a file which contains a list of entries: file, dir, nod. I swapped the order of filename/location for the file arguments so that it would be more uniform with the dir and node tyes. Signed-off-by:
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Andrew Morton authored
Fix up various things which Rusty's patch broke or missed. Signed-off-by:
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Michael Hunold authored
- [V4L] mxb, dpc7146, hexium_orion, hexium_gemini: follow latest changes in saa7146 driver Signed-off-by:
Michael Hunold <hunold@linuxtv.org> Signed-off-by:
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Michael Hunold authored
- [DVB] all: replace dvb_unregister_frontend_new() with dvb_unregister_frontend() - [DVB] sp887x: fix firmware download, patch by Jose Alberto Reguero - [DVB] tda1004x: add firmware loading via firmware_class() - [DVB] dvb_frontend: without hierachical coding, code_rate_LP is irrelevant, so we tolerate the otherwise invalid FEC_NONE setting - [DVB] ves1x93: fixed dropouts on older DVB cards, fix tuning issues (Andreas Share / Gregoire Favre), Signed-off-by:
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Michael Hunold authored
- [DVB] av7110: convert MODULE_PARM() to module_param(), replace home-brewn waiting stuff in osd code with wait_event_interruptible_timeout() - [DVB] av7110: put a semaphore around osd calls to make sure they're properly serialized, timeout variable in arm_thread() must be int, not unsigned long - [DVB] av7110: add additional OSD window types (patch by Jeremy Jones), new ioctl OSD_GET_CAPABILITY/OSD_CAP_MEMSIZE; returns size of OSD memory - [DVB] av7110: put audio/video initialization into separate function init_av7110_av(); call this function after system initialization and after arm crash to restore the previous state; thanks to Soeren Sonnenburg <bugreports@nn7.de> for this patch. - [DVB] av7110, budget, ttusb-budget: remove dvb i2c remains, support kernel i2c - [DVB] av7110, budget: use msleep() instead of my_wait(), thanks to Kernel Janitors/Nishanth Aravamudan <nacc@us.ibm.com> - [DVB] av7110, budget: fix videodev has no release callback - [DVB] av7110: more sparse annotiations - [DVB] budget: add support for TerraTec Cinergy 1200 DVB-S - [DVB] budget: fix race condition in irq handler - [DVB] skystar2, av7110, ttusb-budget, budget: make i2c client_(un)register() functions static Signed-off-by:
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Michael Hunold authored
- [DVB] new driver for mobile USB Budget DVB-T devices, thanks to Patrick Boettcher Signed-off-by:
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Michael Hunold authored
- [DVB] add new driver for mobile DVB-T demodulator DiBcom 3000-MB - [DVB] add new drivers to Makefile Signed-off-by:
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Michael Hunold authored
- [DVB] add new driver for Zarlink DVB-T MT352 frontend - [DVB] add new driver for Conexant 22702 DVB OFDM frontend Signed-off-by:
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Michael Hunold authored
- [DVB] nxt6000, sp887x: convert from dvb-i2c to kernel-i2c, MODULE_PARM() to module_param(), dvb_delay() to mdelay() - [DVB] sp887x: move from home-brewn firmware loading to firmware_class Signed-off-by:
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Michael Hunold authored
- [DVB] dvb_dummy_fe, grundig_29504-401, grundig_29504-491, mt312: convert from dvb-i2c to kernel-i2c, MODULE_PARM() to module_param(), dvb_delay() to mdelay() - [DVB] update frontend Kconfig Signed-off-by:
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Michael Hunold authored
- [DVB] alps_tdlb7, alps_tdmb7, at76c651, cx24110, dst: convert from dvb-i2c to kernel-i2c, MODULE_PARM() to module_param(), dvb_delay() to mdelay() - [DVB] alps_tdlb7: move from home-brewn firmware loading to firmware_class - [DVB] dst: use sysfs attributes for type and flags for per-card parameters Signed-off-by:
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Michael Hunold authored
- [DVB] stv0299, tda1004x, ves1820, ves1x93: convert from dvb-i2c to kernel-i2c, MODULE_PARM() to module_param(), dvb_delay() to mdelay() - [DVB] tda1004x: move from home-brewn firmware loading to firmware_class - [DVB] stv0299: support Cinergy1200, patch by Uli Luckas Signed-off-by:
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Michael Hunold authored
- [DVB] remove non-linux compatibility stuff from dvb_functions. rest in peace. - [DVB] remove home-brewn dvb-i2c stuff. rest in peace. - [DVB] convert MODULE_PARM() to module_param() - [DVB] convert dvb_delay() to mdelay() - [DVB] convert C++ comments to C comments - [DVB] dvb_ca_en50221: fix for matrix CAMs from Sjoerd Simons, use c99 initializers, Fix for aston CAM read timeout problems, Moved CAM CTRL IF reset to a better place, better debugging with multiple cards (Sjoerd Simons) - [DVB] dvb-frontend: patch by Wolfgang Fritz: suppress spurious events during tuning, Do not allow write (and related) ioctls when frontend is opened RDONLY, Properly lock the frontend module on open/close, patch by Christopher Pascoe: remove bogus up(fe->sem) on fe thread exit, patch by Christopher Pascoe: remove bogus up(fe->sem) on fe thread exit - [DVB] dvb-demux: using spin_lock instead of spin_lock_irq caused a race condition between irq/tasklet and user space task - [DVB] dvb-core: add sysfs/udev support using "class_simple", prevent Oops when PES filter is set with invalid pes_type, protect feed_list with spin_locks Signed-off-by:
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Michael Hunold authored
- [DVB] convert drivers from dvb-i2c to kernel-i2c - [DVB] convert MODULE_PARM() to module_param() - [DVB] convert dvb_delay() to mdelay() - [DVB] dvb-bt8xx: convert home-brewn bttv i2c access to a real bttv sub-driver Signed-off-by:
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Michael Hunold authored
- [DVB] add udev.txt which describes how to use dvb and udev/sysfs - [DVB] add Visionplus VisionDTV USB-Ter DVB-T adapter documentation - [DVB] update TT USB DEC documentation - [DVB] update various Kconfig entries - [DVB] remove obsolete firmware documentation Signed-off-by:
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Michael Hunold authored
- [DVB] fix videodev has no release callback - [DVB] use PAGE_SIZE for pagetables, not home-brewn SAA7146_PGTABLE_SIZE - [DVB] use cpu_to_le32() at various places for endianess independency - [DVB] turn some error checks into BUG()s - [DVB] make saa7146_i2c_adapter_prepare() support an adapter class - [DVB] add support for V4L2_PIX_FMT_RGB32 pixelformat - [DVB] replace generic saa7146 i2c name by card specific name, suggested by Uli Luckas <luckas@musoft.de> Signed-off-by:
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Gerd Knorr authored
This is a minor cleanup for the msp3400.c module: use the new msleep() function for delays. Signed-off-by:
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Gerd Knorr authored
The problem is that dvb is way to much work-in-progress right now, it's almost impossible to build something which works on both mainline kernel + latest dvb cvs. Hope at least the interfaces are settled soon, for now I gave up on getting it work in mainline in short-term. The patch below compiles the DVB card configuration code only when VIDEO_CX88_DVB is enabled (which is commented right now in Kconfig due to being broken). Signed-off-by:
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Gerd Knorr authored
This is a major update of the cx88 driver. Main new feature is support for the MPEG PCI function of the cx2388x chips. The changes in detail: * A bunch of code restructions, to allow multiple modules (one per PCI function) work on top of the core module. * Add a new module with common code for the mpeg PCI function. * Add a new module to support mpeg encoder cards (connexant "blackbird" reference design). That one is not much tested yet and may have bugs. They can be easily workarounded by not loading the module through, it isn't needed to capture uncompressed video. * Add a new module to support DVB cards. That one is better tested than the blackbird one, but it needs additional cutting-edge stuff from the dvb project, thats why it is disabled in Kconfig for now. * Several cleanups along the way: use kthread, use msleep(), drop some 2.4.x compatibility code, move insmod options to 2.6 style, ... * adapt code to the video-buf changes. * suspend fixes. * as usual some new tv cards. Signed-off-by:Gerd Knorr <kraxel@bytesex.org> Signed-off-by:
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Gerd Knorr authored
This update for the bttv driver. Changes: * adapt the driver to video-buf changes. * It also added sanity checks for the bt878 risc code buffer sizes. * adds support for new tv cards. * cleanup i2c driver autoload. * misc cleanups (msleep, ...). * fix IRQ bug when stopping vbi capture. * drop check for cx2388x (bt878 successor) and the printk saying bttv doesn't support these. * set i2c class correctly for dvb cards. Signed-off-by:
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Gerd Knorr authored
This patch adapts the saa7146 driver to the video-buf changes. Signed-off-by:
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Gerd Knorr authored
This patch makes the video-buf helper module pass through a void pointer instead of a struct file pointer, that makes the code also usable when no file pointer is available. This is needed for when using the video-buf infrastructure to manage DMA buffers for DVB cards. The file pointer was used by the videobuf_queue_ops callbacks to get the drivers private data via file->private_data, now a pointer to the drivers's private data can be passed directly. Adaptions of the drivers follow with separate patches. Signed-off-by:
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Gerd Knorr authored
This is a update for the analog tv tuner module, it adds support for two new tuner chips. Signed-off-by:
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Hugh Dickins authored
Let's lighten the global spinlock mmlist_lock. What's it for? 1. Its original role is to guard mmlist. 2. It later got a second role, to prevent get_task_mm from raising mm_users from the dead, just after it went down to 0. Firstly consider the second: __exit_mm sets tsk->mm NULL while holding task_lock before calling mmput; so mmlist_lock only guards against the exceptional case, of get_task_mm on a kernel workthread which did AIO's use_mm (which transiently sets its tsk->mm without raising mm_users) on an mm now exiting. Well, I don't think get_task_mm should succeed at all on use_mm tasks. It's mainly used by /proc/pid and ptrace, seems at best confusing for those to present the kernel thread as having a user mm, which it won't have a moment later. Define PF_BORROWED_MM, set in use_mm, clear in unuse_mm (though we could just leave it), get_task_mm give NULL if set. Secondly consider the first: and what's mmlist for? 1. Its original role was for swap_out to scan: rmap ended that in 2.5.27. 2. In 2.4.10 it got a second role, for try_to_unuse to scan for swapoff. So, make mmlist a list of mms which maybe have pages on swap: add mm to mmlist when first swap entry is assigned in try_to_unmap_one (pageout), or in copy_page_range (fork); and mmput remove it from mmlist as before, except usually list_empty and there's no need to lock. drain_mmlist added to swapoff, to empty out the mmlist if no swap is then in use. mmput leave mm on mmlist until after its exit_mmap, so try_to_unmap_one can still add mm to mmlist without worrying about the mm_users 0 case; but try_to_unuse must avoid the mm_users 0 case (when an mm might be removed from mmlist, and freed, while it's down in unuse_process): use atomic_inc_return now all architectures support that. Some of the detailed comments in try_to_unuse have grown out of date: updated and trimmed some, but leave SWAP_MAP_MAX for another occasion. Signed-off-by:
Hugh Dickins <hugh@veritas.com> Signed-off-by:
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Hirofumi Ogawa authored
The low byte of FAT's first entry must have same value with media-field. So, I added that validity check for some case. In fact, in some case this check detected non-FAT filesystem. But in real world, unfortunately too many devices is writing a wrong value. This patch removes that validity check. Signed-off-by:
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by:
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Hirofumi Ogawa authored
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Hirofumi Ogawa authored
This patch make sure it's <= sbi->clusters. Signed-off-by:
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Hirofumi Ogawa authored
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Hirofumi Ogawa authored
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Hirofumi Ogawa authored
This patch fixes the race condition | fat_free | fat_get_cluster +------------------------------+----------------------- fat_cache_lookup() (get the copy of cache) fat_cache_inval_inode() (invalidate caches on inode) fat_cache_add() (update/add the getted cache) The above race has possible that invalidated cache is added. This patch fixes the race condition by adding the cache-id to copy of cache. Signed-off-by: -
Hirofumi Ogawa authored
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Hirofumi Ogawa authored
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Hirofumi Ogawa authored
This rewrites the cache stuff for file allocation table (FAT). This cache stocks the more pieces of FAT-chain by counting the number of contiguous data blocks. And if cache hit, since a block number can calculate without looking FAT-chain up, fat_get_block() become more fast. But if data blocks was fragmenting, unfortunately this cache is unuseful. read from block device [1st]# time dd if=/dev/hda6 of=/dev/null bs=1M count=2048 2147483648 bytes transferred in 229.524189 seconds (9356241 bytes/sec) real 3m49.557s, user 0m0.026s, sys 1m20.414s [2nd]# time dd if=/dev/hda6 of=/dev/null bs=1M count=2048 2147483648 bytes transferred in 229.539358 seconds (9355623 bytes/sec) real 3m49.647s, user 0m0.036s, sys 1m20.144s read from full contiguous file with this patch [1st]# time dd if=data of=/dev/null bs=1M count=2048 2147483648 bytes transferred in 337.959477 seconds (6354264 bytes/sec) real 5m37.970s, user 0m0.031s, sys 1m21.915s [2nd]# time dd if=data of=/dev/null bs=1M count=2048 2147483648 bytes transferred in 225.401699 seconds (9527362 bytes/sec) real 3m45.476s, user 0m0.027s, sys 1m19.286s read from full fragmented file with this patch [1st]# time dd if=data of=/dev/null bs=1M count=2048 2147483647 bytes transferred in 1146.529081 seconds (1873030 bytes/sec) real 19m6.538s, user 0m0.020s, sys 1m32.774s [2nd]# time dd if=data of=/dev/null bs=1M count=2048 2147483647 bytes transferred in 1045.084822 seconds (2054841 bytes/sec) real 17m25.152s, user 0m0.022s, sys 1m34.801s read from full contiguous file without this patch [1st]# time dd if=data of=/dev/null bs=1M count=2048 2147483648 bytes transferred in 348.144707 seconds (6168365 bytes/sec) real 5m48.169s, user 0m0.019s, sys 1m29.962s [2nd]# time dd if=data of=/dev/null bs=1M count=2048 2147483648 bytes transferred in 324.017361 seconds (6627681 bytes/sec) real 5m24.038s, user 0m0.023s, sys 1m20.602s read from full fragmented file without this patch [1st]# time dd if=data of=/dev/null bs=1M count=2048 2147483647 bytes transferred in 1156.845693 seconds (1856327 bytes/sec) real 19m16.855s, user 0m0.031s, sys 1m32.172s [2nd]# time dd if=data of=/dev/null bs=1M count=2048 2147483647 bytes transferred in 1066.518713 seconds (2013545 bytes/sec) real 17m46.526s, user 0m0.023s, sys 1m33.630s Signed-off-by:
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