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* V4L/DVB (3278): convert diagnostics over to the new v4l2-common.h macros.Hans Verkuil2006-01-092-2/+3
| | | | | | | | | - Convert diagnostics over to the new v4l2-common.h macros. - deprecated tuner_debug option, the new option is debug. - renamed cx25840_debug to debug. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L/DVB (3276): Added new diagnositics macros, convert msp3400 to the new ↵Hans Verkuil2006-01-091-12/+51
| | | | | | | | | | | | | | macros. - Added new v4l_err, v4l_warn, v4l_info and v4l_dbg macros to v4l2-common.h for use in v4l-dvb i2c drivers. This ensures a unique prefix for each device instance. - At a later stage these macros may be reimplemented using the device-generic macros from device.h. - Converted the msp3400 driver to the new macros. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L/DVB (3269): ioctls cleanups.Michael Krufky2006-01-095-10/+27
| | | | | | | | | | | - Now, all internal ioctls are at v4l2-common.h - removed unused ioctl at saa6752hs.h - all debug ioctl code moved to v4l2-common.c - removed duplicated stuff from other cards Signed-off-by: Michael Krufky <mkrufky@m1k.net> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L/DVB (3214): Calculate the saa7115 AMCLK regs instead of using fixed valuesHans Verkuil2006-01-091-10/+5
| | | | | | | | | | | - Calculate the audio master clock registers from the actual frequencies. This simplifies the code and it also prepares for adding CGC2 support. - VIDIOC_INT_AUDIO_CLOCK_FREQ now receives an u32 instead of an enum. It is more generic and actually easier to implement. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L/DVB (3245): Added some comments about multiple tuner support.Hans Verkuil2006-01-091-3/+19
| | | | | | | | - Added some comments to make clearer how to use ioctl api to handle multiple tuners at the same board. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L/DVB (3234): Included advanced debug option to tvp5150.cMauro Carvalho Chehab2006-01-091-0/+1
| | | | | | | - Included advanced debug option to tvp5150.c - Now, advanced debug info is the first item at V4L menu. Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L/DVB (3233): Fixed API to set I2S speed controlMauro Carvalho Chehab2006-01-092-1/+7
| | | | | | | - Created a new ioctl to control I2S speed. Old calls to an inadequate V4L2 API replaced. Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L/DVB (3196): correct Thomson DTT 761x frequency rangesMichael Krufky2006-01-091-1/+1
| | | | | | | | | | | - Corrected Thomson DTT 7611 tuner programming, based on spec sheet - renamed to Thomson DTT 761x - applies to DTT 7611 7611A 7612 7613 7613A 7614 7615 7615A (DTT 7610 is similar, but slightly different programming) - corrected frequency ranges for analog and digital modes Signed-off-by: Michael Krufky <mkrufky@m1k.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L/DVB (3167): added ntsc parameter to tuner and more standardized debugsMauro Carvalho Chehab2006-01-091-5/+5
| | | | | | | | | - Debug message changed to be coherent with other modules - added ntsc parameter - parameters moved to the beginning at the file - tuner_status moved to a better position. Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L/DVB (3116): tda9887 improvements: better defaults, better configurability.Hans Verkuil2006-01-091-13/+18
| | | | | | | | | | | | | | | - Set the tuner takeover point to 0x10 for NTSC/radio and 0x14 for PAL/SECAM. - Allow override through TDA9887_SET_CONFIG - PAL-N belongs with PAL-BG as does PAL-H. PAL-Nc belongs to PAL-M - Add SECAM-BGH - Set video freq to cVideoIF_38_90 for DK standards. - Add cTunerGainLow to radio, change deemphasis to 75 for mono. - Add ntsc module param for 'M' and 'J' (Japanese) standards. - Fix module handling for 2.4. - Now able to select all standards through pal/secam/ntsc module options Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L/DVB (3105): Remove AUDC_CONFIG_PINNACLE horror, fix mt20xx radio support.Hans Verkuil2006-01-091-11/+0
| | | | | | | | - Remove AUDC_CONFIG_PINNACLE horror. This also fixes radio support for mt20xx tuners. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L/DVB (3062): Fix wrong tuner.h define for tuner 46Hans Verkuil2006-01-091-2/+2
| | | | | | | - Fix wrong tuner.h define for tuner 46 (it's a Panasonic, not a Microtune). Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* DVB (2444): Implement frontend-specific tuning and the ability to disable zigzagAndrew de Quincey2006-01-091-0/+10
| | | | | | | - Implement frontend-specific tuning and the ability to disable zigzag Signed-off-by: Andrew de Quincey <adq_dvb@lidskialf.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L (1021): Tuner description now follows the same CodingStyle as the othersMauro Carvalho Chehab2006-01-091-22/+0
| | | | | | - Tuner description now follows the same CodingStyle as the others Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L (0987): Added Secam L' std on tda9887 and common macros moved to videodev2.hMauro Carvalho Chehab2006-01-091-1/+10
| | | | | | | - Added SECAM L' video standard - Common std macros moved to videodev2.h Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* V4L (926_2): Moves compat32 functions from fs to v4l subsystemArnd Bergmann2006-01-092-26/+3
| | | | | | | | | | | | | | | | | | | This moves the 32 bit ioctl compatibility handlers for Video4Linux into a new file and adds explicit calls to them to each v4l device driver. Unfortunately, there does not seem to be any code handling the v4l2 ioctls, so quite often the code goes through two separate conversions, first from 32 bit v4l to 64 bit v4l, and from there to 64 bit v4l2. My patch does not change that, so there is still much room for improvement. Also, some drivers have additional ioctl numbers, for which the conversion should be handled internally to that driver. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
* [PATCH] Make vm86 support optionalMatt Mackall2006-01-082-2/+20
| | | | | | | | | | | | | | | | | | | This adds an option to remove vm86 support under CONFIG_EMBEDDED. Saves about 5k. This version eliminates most of the #ifdefs of the previous version and instead uses function stubs in vm86.h. Also, release_vm86_irqs is moved from asm-i386/irq.h to a more appropriate home in vm86.h so that the stubs can live together. $ size vmlinux-baseline vmlinux-novm86 text data bss dec hex filename 2920821 523232 190652 3634705 377611 vmlinux-baseline 2916268 523100 190492 3629860 376324 vmlinux-novm86 Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove semicolons from save_flags()Andrew Morton2006-01-081-1/+1
| | | | | Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Eliminate __attribute__ ((packed)) warnings for gcc-4.1Jan Blunck2006-01-0810-293/+293
| | | | | | | | | | | | | | | | | | | | | | | | | Since version 4.1 the gcc is warning about ignored attributes. This patch is using the equivalent attribute on the struct instead of on each of the structure or union members. GCC Manual: "Specifying Attributes of Types packed This attribute, attached to struct or union type definition, specifies that each member of the structure or union is placed to minimize the memory required. When attached to an enum definition, it indicates that the smallest integral type should be used. Specifying this attribute for struct and union types is equivalent to specifying the packed attribute on each of the structure or union members." Signed-off-by: Jan Blunck <jblunck@suse.de> Cc: Dave Jones <davej@codemonkey.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] parport: bring back an unused phase for ppdev ioctlMarko Kohtala2006-01-081-1/+3
| | | | | | | | | | Earlier fix removed unused phase, but that changed the values for other phases. Since these are exposed to userspace through ppdev, it is safer not to change them. Restore the unused phase value. Signed-off-by: Marko Kohtala <marko.kohtala@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Split out screen_info from tty.hBrian Gerst2006-01-082-71/+78
| | | | | | | | | This makes it possible for boot code to use screen_info without dragging in all of tty.h. Signed-off-by: Brian Gerst <bgerst@didntduck.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] PTRACE_SYSEMU is only for i386 and clashes with other ptrace codes ↵Paolo 'Blaisorblade' Giarrusso2006-01-082-2/+3
| | | | | | | | | | | | | | of other archs PTRACE_SYSEMU{,_SINGLESTEP} is actually arch specific, for now, and the current allocated number clashes with a ptrace code of frv, i.e. PTRACE_GETFDPIC. I should have submitted this much earlier, anyway we get no breakage for this. CC: Daniel Jacobowitz <dan@debian.org> Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] shrink struct pageAndrew Morton2006-01-081-19/+22
| | | | | | | | | | | | Reduce the size of the pageframe for NR_CPUS>4, CONFIG_PREEMPT back to the minimal size by unionising both ->private and ->mapping with the pagetable lock. It uses an anonymous struct and hence requires gcc-3.x. Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] aio: reorder kiocb structure elements to make sync iocb setup fasterBenjamin LaHaise2006-01-081-5/+7
| | | | | | | | | | | | | | | | | Reorder members of the kiocb structure to make sync kiocb setup faster. By setting the elements sequentially, the write combining buffers on the CPU are able to combine the writes into a single burst, which results in fewer cache cycles being consumed, freeing them up for other code. This results in a 10-20KB/s[*] increase on the bw_unix part of LMbench on my test system. * The improvement varies based on what other patches are in the system, as there are a number of bottlenecks, so this number is not absolutely accurate. Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] /dev/mem: validate mmap requestsBjorn Helgaas2006-01-081-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a hook so architectures can validate /dev/mem mmap requests. This is analogous to validation we already perform in the read/write paths. The identity mapping scheme used on ia64 requires that each 16MB or 64MB granule be accessed with exactly one attribute (write-back or uncacheable). This avoids "attribute aliasing", which can cause a machine check. Sample problem scenario: - Machine supports VGA, so it has uncacheable (UC) MMIO at 640K-768K - efi_memmap_init() discards any write-back (WB) memory in the first granule - Application (e.g., "hwinfo") mmaps /dev/mem, offset 0 - hwinfo receives UC mapping (the default, since memmap says "no WB here") - Machine check abort (on chipsets that don't support UC access to WB memory, e.g., sx1000) In the scenario above, the only choices are - Use WB for hwinfo mmap. Can't do this because it causes attribute aliasing with the UC mapping for the VGA MMIO space. - Use UC for hwinfo mmap. Can't do this because the chipset may not support UC for that region. - Disallow the hwinfo mmap with -EINVAL. That's what this patch does. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove gcc-2 checksAndrew Morton2006-01-0816-103/+15
| | | | | | | | | | | | | Remove various things which were checking for gcc-1.x and gcc-2.x compilers. From: Adrian Bunk <bunk@stusta.de> Some documentation updates and removes some code paths for gcc < 3.2. Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Abandon gcc-2.95.xAndrew Morton2006-01-082-31/+0
| | | | | | | | | | | | | | There's one scsi driver which doesn't compile due to weird __VA_ARGS__ tricks and the rather useful scsi/sd.c is currently getting an ICE. None of the new SAS code compiles, due to extensive use of anonymous unions. The V4L guys are very good at exploiting the gcc-2.95.x macro expansion bug (_why_ does each driver need to implement its own debug macros?) and various people keep on sneaking in anonymous unions, which are rather nice. Plus anonymous unions are rather useful. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove unused blkp field in percpu_dataEric Dumazet2006-01-081-1/+0
| | | | | | | | | | | | | | | I found that blkp field was not used in kernel tree. As most of the times NR_CPUS is a power of two and kmalloc() memory blocks too, this extra field basically doubles the memory space allocated in __alloc_percpu() to store the 'struct percpu_data' (for example, if NR_CPUS=8 on i386, kmalloc(4*8+4) returns a 64 bytes block instead of a 32 bytes block after this patch) Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fs: remove s_old_blocksize from struct super_blockPekka Enberg2006-01-081-1/+0
| | | | | | | | | This patch inlines the single user of struct super_block field s_old_blocksize and removes the field. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] shrink dentry structEric Dumazet2006-01-081-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some long time ago, dentry struct was carefully tuned so that on 32 bits UP, sizeof(struct dentry) was exactly 128, ie a power of 2, and a multiple of memory cache lines. Then RCU was added and dentry struct enlarged by two pointers, with nice results for SMP, but not so good on UP, because breaking the above tuning (128 + 8 = 136 bytes) This patch reverts this unwanted side effect, by using an union (d_u), where d_rcu and d_child are placed so that these two fields can share their memory needs. At the time d_free() is called (and d_rcu is really used), d_child is known to be empty and not touched by the dentry freeing. Lockless lookups only access d_name, d_parent, d_lock, d_op, d_flags (so the previous content of d_child is not needed if said dentry was unhashed but still accessed by a CPU because of RCU constraints) As dentry cache easily contains millions of entries, a size reduction is worth the extra complexity of the ugly C union. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Cc: Dipankar Sarma <dipankar@in.ibm.com> Cc: Maneesh Soni <maneesh@in.ibm.com> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Cc: Ian Kent <raven@themaw.net> Cc: Paul Jackson <pj@sgi.com> Cc: Al Viro <viro@ftp.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: James Morris <jmorris@namei.org> Cc: Stephen Smalley <sds@epoch.ncsc.mil> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] shared mounts: cleanupMiklos Szeredi2006-01-082-2/+3
| | | | | | | | | | Small cleanups in shared mounts code. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Cc: Ram Pai <linuxram@us.ibm.com> Cc: <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Add block_device_operations.getgeo block device methodChristoph Hellwig2006-01-081-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | HDIO_GETGEO is implemented in most block drivers, and all of them have to duplicate the code to copy the structure to userspace, as well as getting the start sector. This patch moves that to common code [1] and adds a ->getgeo method to fill out the raw kernel hd_geometry structure. For many drivers this means ->ioctl can go away now. [1] the s390 block drivers are odd in this respect. xpram sets ->start to 4 always which seems more than odd, and the dasd driver shifts the start offset around, probably because of it's non-standard sector size. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Jens Axboe <axboe@suse.de> Cc: <mike.miller@hp.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Paolo Giarrusso <blaisorblade@yahoo.it> Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Markus Lidel <Markus.Lidel@shadowconnect.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sigaction should clear all signals on SIG_IGN, not just < 32George Anzinger2006-01-081-0/+17
| | | | | | | | | | | | | | | While rooting aroung in the signal code trying to understand how to fix the SIG_IGN ploy (set sig handler to SIG_IGN and flood system with high speed repeating timers) I came across what, I think, is a problem in sigaction() in that when processing a SIG_IGN request it flushes signals from 1 to SIGRTMIN and leaves the rest. Attempt to fix this. Signed-off-by: George Anzinger <george@mvista.com> Cc: Roland McGrath <roland@redhat.com> Cc: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] keys: Permit running process to instantiate keysDavid Howells2006-01-083-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make it possible for a running process (such as gssapid) to be able to instantiate a key, as was requested by Trond Myklebust for NFS4. The patch makes the following changes: (1) A new, optional key type method has been added. This permits a key type to intercept requests at the point /sbin/request-key is about to be spawned and do something else with them - passing them over the rpc_pipefs files or netlink sockets for instance. The uninstantiated key, the authorisation key and the intended operation name are passed to the method. (2) The callout_info is no longer passed as an argument to /sbin/request-key to prevent unauthorised viewing of this data using ps or by looking in /proc/pid/cmdline. This means that the old /sbin/request-key program will not work with the patched kernel as it will expect to see an extra argument that is no longer there. A revised keyutils package will be made available tomorrow. (3) The callout_info is now attached to the authorisation key. Reading this key will retrieve the information. (4) A new field has been added to the task_struct. This holds the authorisation key currently active for a thread. Searches now look here for the caller's set of keys rather than looking for an auth key in the lowest level of the session keyring. This permits a thread to be servicing multiple requests at once and to switch between them. Note that this is per-thread, not per-process, and so is usable in multithreaded programs. The setting of this field is inherited across fork and exec. (5) A new keyctl function (KEYCTL_ASSUME_AUTHORITY) has been added that permits a thread to assume the authority to deal with an uninstantiated key. Assumption is only permitted if the authorisation key associated with the uninstantiated key is somewhere in the thread's keyrings. This function can also clear the assumption. (6) A new magic key specifier has been added to refer to the currently assumed authorisation key (KEY_SPEC_REQKEY_AUTH_KEY). (7) Instantiation will only proceed if the appropriate authorisation key is assumed first. The assumed authorisation key is discarded if instantiation is successful. (8) key_validate() is moved from the file of request_key functions to the file of permissions functions. (9) The documentation is updated. From: <Valdis.Kletnieks@vt.edu> Build fix. Signed-off-by: David Howells <dhowells@redhat.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Alexander Zangerl <az@bond.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] keys: Permit key expiry time to be setDavid Howells2006-01-081-0/+1
| | | | | | | | | | | Add a new keyctl function that allows the expiry time to be set on a key or removed from a key, provided the caller has attribute modification access. Signed-off-by: David Howells <dhowells@redhat.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Alexander Zangerl <az@bond.edu.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix some problems with truncate and mtime semantics.NeilBrown2006-01-081-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SUS requires that when truncating a file to the size that it currently is: truncate and ftruncate should NOT modify ctime or mtime O_TRUNC SHOULD modify ctime and mtime. Currently mtime and ctime are always modified on most local filesystems (side effect of ->truncate) or never modified (on NFS). With this patch: ATTR_CTIME|ATTR_MTIME are sent with ATTR_SIZE precisely when an update of these times is required whether size changes or not (via a new argument to do_truncate). This allows NFS to do the right thing for O_TRUNC. inode_setattr nolonger forces ATTR_MTIME|ATTR_CTIME when the ATTR_SIZE sets the size to it's current value. This allows local filesystems to do the right thing for f?truncate. Also, the logic in inode_setattr is changed a bit so there are two return points. One returns the error from vmtruncate if it failed, the other returns 0 (there can be no other failure). Finally, if vmtruncate succeeds, and ATTR_SIZE is the only change requested, we now fall-through and mark_inode_dirty. If a filesystem did not have a ->truncate function, then vmtruncate will have changed i_size, without marking the inode as 'dirty', and I think this is wrong. Signed-off-by: Neil Brown <neilb@suse.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Permit multiple inclusion of linux/pagevec.hDavid Howells2006-01-081-0/+5
| | | | | | | | | Make it possible to include linux/pagevec.h multiple times without incurring errors due to duplicate definitions. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] use ptrace_get_task_struct in various placesChristoph Hellwig2006-01-081-0/+2
| | | | | | | | | | | | | | | | The ptrace_get_task_struct() helper that I added as part of the ptrace consolidation is useful in variety of places that currently opencode it. Switch them to the common helpers. Add a ptrace_traceme() helper that needs to be explicitly called, and simplify the ptrace_get_task_struct() interface. We don't need the request argument now, and we return the task_struct directly, using ERR_PTR() for error returns. It's a bit more code in the callers, but we have two sane routines that do one thing well now. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] relayfs: cleanup, change relayfs_file_* to relay_file_*Tom Zanussi2006-01-081-3/+2
| | | | | | | | | | This patch renames relayfs_file_operations to relay_file_operations, and the file operations themselves from relayfs_XXX to relay_file_XXX, to make it more clear that they refer to relay files. Signed-off-by: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] relayfs: add support for global relay buffersTom Zanussi2006-01-081-1/+7
| | | | | | | | | | | | | This patch adds the optional is_global outparam to the create_buf_file() callback. This can be used by clients to create a single global relayfs buffer instead of the default per-cpu buffers. This was suggested as being useful for certain debugging applications where it's more convenient to be able to get all the data from a single channel without having to go to the bother of dealing with per-cpu files. Signed-off-by: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] relayfs: add support for relay files in other filesystemsTom Zanussi2006-01-081-0/+34
| | | | | | | | | | | | | This patch adds a couple of callback functions that allow a client to hook into relay_open()/close() and supply the files that will be used to represent the channel buffers; the default implementation if no callbacks are defined is to create the files in relayfs. This is to support the creation and use of relay files in other filesystems such as debugfs, as implied by the fact that relayfs_file_operations are exported. Signed-off-by: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] relayfs: remove unused alloc/destroy_inode()Tom Zanussi2006-01-081-14/+0
| | | | | | | | | Since we're no longer using relayfs_inode_info, remove relayfs_alloc_inode() and relayfs_destroy_inode() along with the relayfs inode cache. Signed-off-by: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] relayfs: add relayfs_remove_file()Tom Zanussi2006-01-081-0/+1
| | | | | | | | | This patch adds and exports relayfs_remove_file(), for API symmetry (with relayfs_create_file()). Signed-off-by: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] relayfs: export relayfs_create_file() with fileops paramTom Zanussi2006-01-081-1/+6
| | | | | | | | | | | | | | | | This patch adds a mandatory fileops param to relayfs_create_file() and exports that function so that clients can use it to create files defined by their own set of file operations, in relayfs. The purpose is to allow relayfs applications to create their own set of 'control' files alongside their relay files in relayfs rather than having to create them in /proc or debugfs for instance. relayfs_create_file() is also used by relay_open_buf() to create the relay files for a channel. In this case, a pointer to relayfs_file_operations is passed in, along with a pointer to the buffer associated with the file. Signed-off-by: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ELF: symbol table type additionsJan Beulich2006-01-081-0/+2
| | | | | | | | | Needed for the Novell kernel debugger and perhaps some per-cpu data on x86_64 in the future. Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] rcu file: use atomic primitivesNick Piggin2006-01-083-222/+2
| | | | | | | | | Use atomic_inc_not_zero for rcu files instead of special case rcuref. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] move rtc_interrupt() prototype to rtc.hAdrian Bunk2006-01-081-0/+3
| | | | | | | | | | | | | | | This patch moves the rtc_interrupt() prototype to rtc.h and removes the prototypes from C files. It also renames static rtc_interrupt() functions in arch/arm/mach-integrator/time.c and arch/sh64/kernel/time.c to avoid compile problems. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Paul Gortmaker <p_gortmaker@yahoo.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fat: support a truncate() for expanding size (generic_cont_expand)OGAWA Hirofumi2006-01-081-1/+2
| | | | | | | | | | | | | | | | | | | | | | This patch changes generic_cont_expand(), in order to share the code with fatfs. - Use vmtruncate() if ->prepare_write() returns a error. Even if ->prepare_write() returns an error, it may already have added some blocks. So, this truncates blocks outside of ->i_size by vmtruncate(). - Add generic_cont_expand_simple(). The generic_cont_expand_simple() assumes that ->prepare_write() can handle the block boundary. With this, we don't need to care the extra byte. And for expanding a file size by truncate(), fatfs uses the added generic_cont_expand_simple(). Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] export/change sync_page_range/_nolock()OGAWA Hirofumi2006-01-081-1/+3
| | | | | | | | | | This exports/changes the sync_page_range/_nolock(). The fatfs needs sync_page_range/_nolock() for expanding truncate, and changes "size_t count" to "loff_t count". Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fat: support ->direct_IO()OGAWA Hirofumi2006-01-081-1/+2
| | | | | | | | | | | | This patch add to support of ->direct_IO() for mostly read. The user of this seems to want to use for streaming read. So, current direct I/O has limitation, it can only overwrite. (For write operation, mainly we need to handle the hole etc..) Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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