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* [XFS] Fix XFS_IOC_FSBULKSTAT{,_SINGLE} & XFS_IOC_FSINUMBERS in compat modeMichal Marek2007-07-144-33/+255
| | | | | | | | | | | | | | | | | | | | | * 32bit struct xfs_fsop_bulkreq has different size and layout of members, no matter the alignment. Move the code out of the #else branch (why was it there in the first place?). Define _32 variants of the ioctl constants. * 32bit struct xfs_bstat is different because of time_t and on i386 because of different padding. Make xfs_bulkstat_one() accept a custom "output formatter" in the private_data argument which takes care of the xfs_bulkstat_one_compat() that takes care of the different layout in the compat case. * i386 struct xfs_inogrp has different padding. Add a similar "output formatter" mecanism to xfs_inumbers(). SGI-PV: 967354 SGI-Modid: xfs-linux-melb:xfs-kern:29102a Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Compat ioctl handler for handle operationsMichal Marek2007-07-141-5/+52
| | | | | | | | | | | | | 32bit struct xfs_fsop_handlereq has different size and offsets (due to pointers). TODO: case XFS_IOC_{FSSETDM,ATTRLIST,ATTRMULTI}_BY_HANDLE still not handled. SGI-PV: 967354 SGI-Modid: xfs-linux-melb:xfs-kern:29101a Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Compat ioctl handler for XFS_IOC_FSGEOMETRY_V1.Michal Marek2007-07-141-1/+41
| | | | | | | | | | | | i386 struct xfs_fsop_geom_v1 has no padding after the last member, so the size is different. SGI-PV: 967354 SGI-Modid: xfs-linux-melb:xfs-kern:29100a Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Clean up function name handling in tracing codeEric Sandeen2007-07-145-273/+150
| | | | | | | | | | | | Remove the hardcoded "fnames" for tracing, and just embed them in tracing macros via __FUNCTION__. Kills a lot of #ifdefs too. SGI-PV: 967353 SGI-Modid: xfs-linux-melb:xfs-kern:29099a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Quota inode has no parent.David Chinner2007-07-142-6/+10
| | | | | | | | | | | | | | Avoid using a special "zero inode" as the parent of the quota inode as this can confuse the filestreams code into thinking the quota inode has a parent. We do not want the quota inode to follow filestreams allocation rules, so pass a NULL as the parent inode and detect this condition when doing stream associations. SGI-PV: 964469 SGI-Modid: xfs-linux-melb:xfs-kern:29098a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Concurrent Multi-File Data StreamsDavid Chinner2007-07-1421-12/+1730
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In media spaces, video is often stored in a frame-per-file format. When dealing with uncompressed realtime HD video streams in this format, it is crucial that files do not get fragmented and that multiple files a placed contiguously on disk. When multiple streams are being ingested and played out at the same time, it is critical that the filesystem does not cross the streams and interleave them together as this creates seek and readahead cache miss latency and prevents both ingest and playout from meeting frame rate targets. This patch set creates a "stream of files" concept into the allocator to place all the data from a single stream contiguously on disk so that RAID array readahead can be used effectively. Each additional stream gets placed in different allocation groups within the filesystem, thereby ensuring that we don't cross any streams. When an AG fills up, we select a new AG for the stream that is not in use. The core of the functionality is the stream tracking - each inode that we create in a directory needs to be associated with the directories' stream. Hence every time we create a file, we look up the directories' stream object and associate the new file with that object. Once we have a stream object for a file, we use the AG that the stream object point to for allocations. If we can't allocate in that AG (e.g. it is full) we move the entire stream to another AG. Other inodes in the same stream are moved to the new AG on their next allocation (i.e. lazy update). Stream objects are kept in a cache and hold a reference on the inode. Hence the inode cannot be reclaimed while there is an outstanding stream reference. This means that on unlink we need to remove the stream association and we also need to flush all the associations on certain events that want to reclaim all unreferenced inodes (e.g. filesystem freeze). SGI-PV: 964469 SGI-Modid: xfs-linux-melb:xfs-kern:29096a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Barry Naujok <bnaujok@sgi.com> Signed-off-by: Donald Douwsma <donaldd@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com> Signed-off-by: Vlad Apostolov <vapo@sgi.com>
* [XFS] Use uninitialized_var macro to stop warning about rtxAndrew Morton2007-07-141-1/+2
| | | | | | | | | | | Appease gcc in regards to "warning: 'rtx' is used uninitialized in this function". SGI-PV: 907752 SGI-Modid: xfs-linux-melb:xfs-kern:29007a Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] XFS should not be looking at filp reference countsChristoph Hellwig2007-07-143-47/+16
| | | | | | | | | | | | | | | | | A check for file_count is always a bad idea. Linux has the ->release method to deal with cleanups on last close and ->flush is only for the very rare case where we want to perform an operation on every drop of a reference to a file struct. This patch gets rid of vop_close and surrounding code in favour of simply doing the page flushing from ->release. SGI-PV: 966562 SGI-Modid: xfs-linux-melb:xfs-kern:28952a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Use is_power_of_2 instead of open coding checksVignesh Babu2007-07-141-2/+3
| | | | | | | | | SGI-PV: 966576 SGI-Modid: xfs-linux-melb:xfs-kern:28950a Signed-off-by: Vignesh Babu <vignesh.babu@wipro.com> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Reduce shouting by removing unnecessary macros from dir2 code.Christoph Hellwig2007-07-1411-324/+283
| | | | | | | | | SGI-PV: 966505 SGI-Modid: xfs-linux-melb:xfs-kern:28947a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Simplify XFS min/max macros.David Chinner2007-07-141-24/+8
| | | | | | | | | SGI-PV: 964547 SGI-Modid: xfs-linux-melb:xfs-kern:28945a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Nathan Scott <nscott@aconex.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Kill off xfs_count_bitsEric Sandeen2007-07-143-86/+13
| | | | | | | | | | | | | xfs_count_bits is only called once, and is then compared to 0. IOW, what it really wants to know is, is the bitmap empty. This can be done more simply, certainly. SGI-PV: 966503 SGI-Modid: xfs-linux-melb:xfs-kern:28944a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Cancel transactions on xfs_itruncate_start error.Jesper Juhl2007-07-141-0/+2
| | | | | | | | | SGI-PV: 966502 SGI-Modid: xfs-linux-melb:xfs-kern:28943a Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Use do_div() on 64 bit types.Christoph Hellwig2007-07-141-1/+3
| | | | | | | | | SGI-PV: 966145 SGI-Modid: xfs-linux-melb:xfs-kern:28889a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Fix remount,readonly path to flush everything correctly.David Chinner2007-07-143-23/+46
| | | | | | | | | | | | | | The remount readonly path can fail to writeback properly because we still have active transactions after calling xfs_quiesce_fs(). Further investigation shows that this path is broken in the same ways that the xfs freeze path was broken so fix it the same way. SGI-PV: 964464 SGI-Modid: xfs-linux-melb:xfs-kern:28869a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Cleanup inode extent size hint extractionDavid Chinner2007-07-144-43/+38
| | | | | | | | | SGI-PV: 966004 SGI-Modid: xfs-linux-melb:xfs-kern:28866a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Prevent ENOSPC from aborting transactions that need to succeedDavid Chinner2007-07-143-19/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During delayed allocation extent conversion or unwritten extent conversion, we need to reserve some blocks for transactions reservations. We need to reserve these blocks in case a btree split occurs and we need to allocate some blocks. Unfortunately, we've only ever reserved the number of data blocks we are allocating, so in both the unwritten and delalloc case we can get ENOSPC to the transaction reservation. This is bad because in both cases we cannot report the failure to the writing application. The fix is two-fold: 1 - leverage the reserved block infrastructure XFS already has to reserve a small pool of blocks by default to allow specially marked transactions to dip into when we are at ENOSPC. Default setting is min(5%, 1024 blocks). 2 - convert critical transaction reservations to be allowed to dip into this pool. Spots changed are delalloc conversion, unwritten extent conversion and growing a filesystem at ENOSPC. This also allows growing the filesytsem to succeed at ENOSPC. SGI-PV: 964468 SGI-Modid: xfs-linux-melb:xfs-kern:28865a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Prevent deadlock when flushing inodes on unmountDavid Chinner2007-07-141-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When we are unmounting the filesystem, we flush all the inodes to disk. Unfortunately, if we have an inode cluster that has just been freed and marked stale sitting in an incore log buffer (i.e. hasn't been flushed to disk), it will be holding all the flush locks on the inodes in that cluster. xfs_iflush_all() which is called during unmount walks all the inodes trying to reclaim them, and it doing so calls xfs_finish_reclaim() on each inode. If the inode is dirty, if grabs the flush lock and flushes it. Unfortunately, find dirty inodes that already have their flush lock held and so we sleep. At this point in the unmount process, we are running single-threaded. There is nothing more that can push on the log to force the transaction holding the inode flush locks to disk and hence we deadlock. The fix is to issue a log force before flushing the inodes on unmount so that all the flush locks will be released before we start flushing the inodes. SGI-PV: 964538 SGI-Modid: xfs-linux-melb:xfs-kern:28862a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Log the agf_length change in xfs_growfs_data_private().Tim Shimmin2007-07-141-0/+1
| | | | | | | | | SGI-PV: 963528 SGI-Modid: xfs-linux-melb:xfs-kern:28856a Signed-off-by: Tim Shimmin <tes@sgi.com> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org>
* [XFS] Map unwritten extents correctly for I/o completion processingDavid Chinner2007-07-141-1/+12
| | | | | | | | | | | | | | | | | | | If we have multiple unwritten extents within a single page, we fail to tell the I/o completion construction handlers we need a new handle for the second and subsequent blocks in the page. While we still issue the I/O correctly, we do not have the correct ranges recorded in the ioend structures and hence when we go to convert the unwritten extents we screw it up. Make sure we start a new ioend every time the mapping changes so that we convert the correct ranges on I/O completion. SGI-PV: 964647 SGI-Modid: xfs-linux-melb:xfs-kern:28797a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Apply transaction delta counts atomically to incore countersDavid Chinner2007-07-141-37/+40
| | | | | | | | | | | | | | | | | | | | | | | | | | With the per-cpu superblock counters, batch updates are no longer atomic across the entire batch of changes. This is not an issue if each individual change in the batch is applied atomically. Unfortunately, free block count changes are not applied atomically, and they are applied in a manner guaranteed to cause problems. Essentially, the free block count reservation that the transaction took initially is returned to the in core counters before a second delta takes away what is used. because these two operations are not atomic, we can race with another thread that can use the returned transaction reservation before the transaction takes the space away again and we can then get ENOSPC being reported in a spot where we don't have an ENOSPC condition, nor should we ever see one there. Fix it up by rolling the two deltas into the one so it can be applied safely (i.e. atomically) to the incore counters. SGI-PV: 964465 SGI-Modid: xfs-linux-melb:xfs-kern:28796a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Handle null returned from xfs_vtoi() in xfs_setfilesize().David Chinner2007-07-141-0/+2
| | | | | | | | | SGI-PV: 965636 SGI-Modid: xfs-linux-melb:xfs-kern:28777a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Olaf Weber <olaf@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Block on unwritten extent conversion during synchronous direct I/O.David Chinner2007-07-141-8/+20
| | | | | | | | | | | | | | | | Currently we do not wait on extent conversion to occur, and hence we can return to userspace from a synchronous direct I/O write without having completed all the actions in the write. Hence a read after the write may see zeroes (unwritten extent) rather than the data that was written. Block the I/O completion by triggering a synchronous workqueue flush to ensure that the conversion has occurred before we return to userspace. SGI-PV: 964092 SGI-Modid: xfs-linux-melb:xfs-kern:28775a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Flush the block device before closing it on unmount.David Chinner2007-07-141-0/+1
| | | | | | | | | SGI-PV: 965630 SGI-Modid: xfs-linux-melb:xfs-kern:28774a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] xfs_bmapi fails to update the previous extent pointerDavid Chinner2007-07-141-3/+3
| | | | | | | | | | | | | | | | | | When processing multiple extent maps, xfs_bmapi needs to keep track of the extent behind the one it is currently working on to be able to trim extent ranges correctly. Failing to update the previous pointer can result in corrupted extent lists in memory and this will result in panics or assert failures. Update the previous pointer correctly when we move to the next extent to process. SGI-PV: 965631 SGI-Modid: xfs-linux-melb:xfs-kern:28773a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Fix the transaction flags to make lazy superblock counters work.David Chinner2007-07-141-1/+1
| | | | | | | | | SGI-PV: 964999 SGI-Modid: xfs-linux-melb:xfs-kern:28653a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Lazy Superblock CountersDavid Chinner2007-07-1418-54/+337
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When we have a couple of hundred transactions on the fly at once, they all typically modify the on disk superblock in some way. create/unclink/mkdir/rmdir modify inode counts, allocation/freeing modify free block counts. When these counts are modified in a transaction, they must eventually lock the superblock buffer and apply the mods. The buffer then remains locked until the transaction is committed into the incore log buffer. The result of this is that with enough transactions on the fly the incore superblock buffer becomes a bottleneck. The result of contention on the incore superblock buffer is that transaction rates fall - the more pressure that is put on the superblock buffer, the slower things go. The key to removing the contention is to not require the superblock fields in question to be locked. We do that by not marking the superblock dirty in the transaction. IOWs, we modify the incore superblock but do not modify the cached superblock buffer. In short, we do not log superblock modifications to critical fields in the superblock on every transaction. In fact we only do it just before we write the superblock to disk every sync period or just before unmount. This creates an interesting problem - if we don't log or write out the fields in every transaction, then how do the values get recovered after a crash? the answer is simple - we keep enough duplicate, logged information in other structures that we can reconstruct the correct count after log recovery has been performed. It is the AGF and AGI structures that contain the duplicate information; after recovery, we walk every AGI and AGF and sum their individual counters to get the correct value, and we do a transaction into the log to correct them. An optimisation of this is that if we have a clean unmount record, we know the value in the superblock is correct, so we can avoid the summation walk under normal conditions and so mount/recovery times do not change under normal operation. One wrinkle that was discovered during development was that the blocks used in the freespace btrees are never accounted for in the AGF counters. This was once a valid optimisation to make; when the filesystem is full, the free space btrees are empty and consume no space. Hence when it matters, the "accounting" is correct. But that means the when we do the AGF summations, we would not have a correct count and xfs_check would complain. Hence a new counter was added to track the number of blocks used by the free space btrees. This is an *on-disk format change*. As a result of this, lazy superblock counters are a mkfs option and at the moment on linux there is no way to convert an old filesystem. This is possible - xfs_db can be used to twiddle the right bits and then xfs_repair will do the format conversion for you. Similarly, you can convert backwards as well. At some point we'll add functionality to xfs_admin to do the bit twiddling easily.... SGI-PV: 964999 SGI-Modid: xfs-linux-melb:xfs-kern:28652a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Use generic shrinker interfaces in XFS.Andrew Morton2007-07-143-25/+6
| | | | | | | | | SGI-PV: 964986 SGI-Modid: xfs-linux-melb:xfs-kern:28642a Signed-Off-By: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Make hole punching at EOF atomic.David Chinner2007-07-142-13/+29
| | | | | | | | | | | | | | | If hole punching at EOF is done as two steps (i.e. truncate then extend) the file is in a transient state between the two steps where an application can see the incorrect file size. Punching a hole to EOF needs to be treated in teh same way as all other hole punching cases so that the file size is never seen to change. SGI-PV: 962012 SGI-Modid: xfs-linux-melb:xfs-kern:28641a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Fix vmalloc leak on mount/unmount.David Chinner2007-07-141-1/+1
| | | | | | | | | | | | | | | When setting the length of the iclogbuf to write out we should just be changing the desired byte count rather completely reassociating the buffer memory with the buffer. Reassociating the buffer memory changes the apparent length of the buffer and hence when we free the buffer, we don't free all the vmap()d space we originally allocated. SGI-PV: 964983 SGI-Modid: xfs-linux-melb:xfs-kern:28640a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Fix double free in xfs_buf_get_noaddr error handling pathChristoph Hellwig2007-07-141-1/+2
| | | | | | | | | SGI-PV: 964983 SGI-Modid: xfs-linux-melb:xfs-kern:28639a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Fix use-after-free during log unmount.David Chinner2007-07-141-7/+9
| | | | | | | | | | | | Don't reference the log buffer after running the callbacks as the callback can trigger the log buffers to be freed during unmount. SGI-PV: 964545 SGI-Modid: xfs-linux-melb:xfs-kern:28567a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Sleeping with the ilock waiting for I/O completion is Bad.David Chinner2007-07-141-45/+28
| | | | | | | | | | | | | | | | | | Recent fixes to the filesystem freezing code introduced a vn_iowait call in the middle of the sync code. Unfortunately, at the point where this call was added we are holding the ilock. The ilock is needed by I/O completion for unwritten extent conversion and now updating the file size. Hence I/o cannot complete if we hold the ilock while waiting for I/O completion. Fix up the bug and clean the code up around it. SGI-PV: 963674 SGI-Modid: xfs-linux-melb:xfs-kern:28566a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Don't grow filesystems past the size they can index.Nathan Scott2007-07-144-13/+29
| | | | | | | | | | | | | | When growing a filesystem we don't check to see if the new size overflows the page cache index range, so we can do silly things like grow a filesystem page 16TB on a 32bit. Check new filesystem sizes against the limits the kernel can support. SGI-PV: 957886 SGI-Modid: xfs-linux-melb:xfs-kern:28563a Signed-Off-By: Nathan Scott <nscott@aconex.com> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* [XFS] Only use refcounted pages for I/OChristoph Hellwig2007-07-143-38/+32
| | | | | | | | | | | | | | | | Many block drivers (aoe, iscsi) really want refcountable pages in bios, which is what almost everyone send down. XFS unfortunately has a few places where it sends down buffers that may come from kmalloc, which breaks them. Fix the places that use kmalloc()d buffers. SGI-PV: 964546 SGI-Modid: xfs-linux-melb:xfs-kern:28562a Signed-Off-By: Christoph Hellwig <hch@infradead.org> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
* lots-of-architectures: enable arbitary speed tty supportAlan Cox2007-07-1015-1/+165
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the termios2 structure ready for enabling on most platforms. One or two like Sparc are plain weird so have been left alone. Most can use the same structure as ktermios for termios2 (ie the newer ioctl uses the structure matching the current kernel structure) Signed-off-by: Alan Cox <alan@redhat.com> Cc: Bryan Wu <bryan.wu@analog.com> Cc: Ian Molton <spyro@f2s.com> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Mikael Starvik <starvik@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Matthew Wilcox <willy@debian.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Richard Curnow <rc@rc0.org.uk> Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Make common helpers for seq_files that work with list_headsPavel Emelianov2007-07-102-0/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many places in kernel use seq_file API to iterate over a regular list_head. The code for such iteration is identical in all the places, so it's worth introducing a common helpers. This makes code about 300 lines smaller: The first version of this patch made the helper functions static inline in the seq_file.h header. This patch moves them to the fs/seq_file.c as Andrew proposed. The vmlinux .text section sizes are as follows: 2.6.22-rc1-mm1: 0x001794d5 with the previous version: 0x00179505 with this patch: 0x00179135 The config file used was make allnoconfig with the "y" inclusion of all the possible options to make the files modified by the patch compile plus drivers I have on the test node. This patch: Many places in kernel use seq_file API to iterate over a regular list_head. The code for such iteration is identical in all the places, so it's worth introducing a common helpers. Signed-off-by: Pavel Emelianov <xemul@openvz.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sx: switch subven and subid valuesJiri Slaby2007-07-101-2/+2
| | | | | | | | | | sx.c is failing to locate Graham's card. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: Graham Murray <gmurray@webwayone.co.uk> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Add LZO1X algorithm to the kernelRichard Purdie2007-07-107-0/+580
| | | | | | | | | | | | | | | | | | | This is a hybrid version of the patch to add the LZO1X compression algorithm to the kernel. Nitin and myself have merged the best parts of the various patches to form this version which we're both happy with (and are jointly signing off). The performance of this version is equivalent to the original minilzo code it was based on. Bytecode comparisons have also been made on ARM, i386 and x86_64 with favourable results. There are several users of LZO lined up including jffs2, crypto and reiser4 since its much faster than zlib. Signed-off-by: Nitin Gupta <nitingupta910@gmail.com> Signed-off-by: Richard Purdie <rpurdie@openedhand.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2007-07-1018-572/+980
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: mmc: at91_mci: fix hanging and rework to match flowcharts mmc: at91_mci typo sdhci: Fix "Unexpected interrupt" handling mmc: fix silly copy-and-paste error mmc: move layer init and workqueue to core file mmc: refactor host class handling mmc: refactor bus operations sdhci: add ene controller id mmc: bounce requests for simple hosts
| * mmc: at91_mci: fix hanging and rework to match flowchartsNicolas Ferre2007-07-091-91/+108
| | | | | | | | | | | | | | | | | | | | | | | | Fixes hanging using multi block operations (seen during CMD25). Follows closely the datasheet flowcharts. This piece of code handles better big file writing. I had to take care of the notbusy signal during write (at91_mci_handle_cmdrdy function) and to rearrange the AT91_MCI_ENDRX and AT91_MCI_RXBUFF flag usage. Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * mmc: at91_mci typoNicolas Ferre2007-07-091-15/+15
| | | | | | | | | | | | | | | | Typo fix in at91_mci driver : standardized the typo (at91_mci everywhere) Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * sdhci: Fix "Unexpected interrupt" handlingRolf Eike Beer2007-07-091-1/+1
| | | | | | | | | | | | | | | | | | Whenever a power interrupt is signaled it is also reported as an unexpected one. All other unexpected interrupts get lost. Cause is a not inversed bitmask to remove power interrupts from the status. Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * mmc: fix silly copy-and-paste errorPierre Ossman2007-07-091-3/+3
| | | | | | | | Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * mmc: move layer init and workqueue to core filePierre Ossman2007-07-093-56/+48
| | | | | | | | Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * mmc: refactor host class handlingPierre Ossman2007-07-097-164/+187
| | | | | | | | | | | | Move basic host class device handling to its own file for clarity. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * mmc: refactor bus operationsPierre Ossman2007-07-099-244/+418
| | | | | | | | | | | | | | | | Move bus operations to its own file for the sake of clarity. Also delegate sysfs attributes to bus handlers in preparation for other more exotic types. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * sdhci: add ene controller idMilko Krachounov2007-07-092-0/+9
| | | | | | | | | | | | | | | | | | ENE has a very weird design where an SDHCI device (0805) is presented on the PCI bus, but that device is non-functional, and the real device is hidden as a more generic device. Signed-off-by: Milko Krachounov <milko@3mhz.net> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
| * mmc: bounce requests for simple hostsPierre Ossman2007-07-094-15/+208
| | | | | | | | | | | | | | | | Some hosts cannot do scatter/gather in hardware. Since not doing sg is such a big performance hit, we (optionally) bounce the requests to a simple linear buffer that we hand over to the driver. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* | Merge branch 'upstream-linus' of ↵Linus Torvalds2007-07-1079-42320/+3531
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (40 commits) bonding/bond_main.c: make 2 functions static ps3: gigabit ethernet driver for PS3, take3 [netdrvr] Fix dependencies for ax88796 ne2k clone driver eHEA: Capability flag for DLPAR support Remove sk98lin ethernet driver. sunhme.c:quattro_pci_find() must be __devinit bonding / ipv6: no addrconf for slaves separately from master atl1: remove write-only var in tx handler macmace: use "unsigned long flags;" Cleanup usbnet_probe() return value handling netxen: deinline and sparse fix eeprom_93cx6: shorten pulse timing to match spec (bis) phylib: Add Marvell 88E1112 phy id phylib: cleanup marvell.c a bit AX88796 network driver IOC3: Switch to pci refcounting safe APIs e100: Fix Tyan motherboard e100 not receiving IPMI commands QE Ethernet driver writes to wrong register to mask interrupts rrunner.c:rr_init() must be __devinit tokenring/3c359.c:xl_init() must be __devinit ...
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