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* V4L/DVB (8656): fix DVB_FE_CUSTOMISE for DVB_DIB7000P and DVB_TUNER_DIB0070 ↵Michael Krufky2008-10-123-8/+45
| | | | | | | | | with dvb-usb-cxusb Allow dvb-usb-cxusb to be built without dib7000p or dib0070 selected Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8655): cxusb: fix checkpatch warnings & errorsMichael Krufky2008-10-121-12/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the following checkpatch.pl errors and warnings: ERROR: do not use assignment in if condition 117: FILE: linux/drivers/media/dvb/dvb-usb/cxusb.c:819: + if ((adap->fe = dvb_attach(dib7000p_attach, ERROR: switch and case should be at the same indent 155: FILE: linux/drivers/media/dvb/dvb-usb/cxusb.c:857: + switch (band) { + case BAND_VHF: offset = 950; break; + case BAND_UHF: + default: offset = 550; break; WARNING: line over 80 characters 169: FILE: linux/drivers/media/dvb/dvb-usb/cxusb.c:871: + struct i2c_adapter *tun_i2c = dib7000p_get_i2c_master(adap->fe, DIBX000_I2C_INTERFACE_TUNER, 1); WARNING: line over 80 characters 213: FILE: linux/drivers/media/dvb/dvb-usb/cxusb.c:1342: +static struct dvb_usb_device_properties cxusb_bluebird_dualdig4_rev2_properties = { WARNING: line over 80 characters 226: FILE: linux/drivers/media/dvb/dvb-usb/cxusb.c:1355: + .size_of_priv = sizeof(struct dib0700_adapter_state), total: 2 errors, 3 warnings, 266 lines checked Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Cc: Anton Blanchard <anton@samba.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8654): cxusb: add support for DViCO FusionHDTV DVB-T Dual Digital 4 ↵Anton Blanchard2008-10-124-1/+211
| | | | | | | | | | | | | | | | | | | | | | (rev 2) Add support for revision 2 of the DViCO FusionHDTV DVB-T Dual Digital 4 which has new tuners and demodulators (2 x DIB7070p). With this patch both DVB reception and IR works. The dib7000p driver currently hardwires the output mode to OUTMODE_MPEG2_SERIAL regardless of what we ask for. Modify it to allow OUTMODE_MPEG2_PAR_GATED_CLK to be set. Longer term we should remove the check completely and set the output mode correctly in all the callers. Add Kconfig bits to ensure the dib7000p and dib0070 modules are enabled. It would be nice to only do this for the !DVB_FE_CUSTOMISE case, but this is what the other DIB7070 module does (there are a number of module dependencies in the attach code). Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8649): v4l2: add AAC bitrate controlHans Verkuil2008-10-122-1/+5
| | | | | | | | If you can select AAC as audio encoder, then you should also be able to set the bitrate. Add this missing control. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8646): cx23885: Convert framework to use a single tuner callback ↵Steven Toth2008-10-123-32/+18
| | | | | | | | | function. Code reduction. Tuner callback now assumes that tsport is passed as the void arg. Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8645): Support IR remote on FusionHDTV DVB-T Dual ExpressSteven Toth2008-10-121-0/+3
| | | | | | | | | From Chris Pascoe <c.pascoe@itee.uq.edu.au> Support IR remote on FusionHDTV DVB-T Dual Express Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8644): Add support for DViCO FusionHDTV DVB-T Dual ExpressSteven Toth2008-10-124-0/+60
| | | | | | | | | Add support for the DViCO FusionHDTV DVB-T Dual Express card, based on work by Chris Pascoe and Stephen Backway. Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8643): Switch Hauppauge HVR1400 and HVR1500 to common cx23885 tuner ↵Steven Toth2008-10-123-33/+18
| | | | | | | | | | | callback The Hauppauge HVR1400 and HVR1500 can now use the common cx23885 tuner callback. Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8642): cx23885: Factor out common cx23885 tuner callbackSteven Toth2008-10-123-11/+15
| | | | | | | | | | | Tuners currently hook different things to the private pointer in their callback function. Longer term we should make that private pointer consistent, but for now separate out the guts of the cx23885 tuner callback so we can reuse it. Signed-off-by: Steven Toth <stoth@hauppauge.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8641): arv: fix compilation errors/warningsHans Verkuil2008-10-121-0/+1
| | | | | | | | - add PCI dependency for btcx - fix compile errors (doesn't like ';' at the end of a #if 0) Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8640): saa6752hs: add PMT table for AC3Hans Verkuil2008-10-121-13/+50
| | | | | | | | The PMT table for AC3 audio is different. Thanks to Dmitry Belimov for providing the table data. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8639): saa6752hs: cleanup and add AC-3 supportHans Verkuil2008-10-124-103/+194
| | | | | | | | | Cleaned up the saa6752hs i2c driver. Add AC-3 support. Add VIDIOC_CHIP_IDENT support. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8637): v4l2: add v4l2_ctrl_query_menu_valid_items support functionHans Verkuil2008-10-122-1/+24
| | | | | | | | | | | v4l2_ctrl_query_menu_valid_items() makes it easy to handle control menus that have a lot of invalid 'holes'. For example, many MPEG encoders only support a limited subset of audio bitrates. In that case a driver can specify an array listing the set of valid bitrates and pass that to this function. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8636): v4l2: add v4l2_ctrl_get_name control support function.Hans Verkuil2008-10-122-50/+60
| | | | | | | | | Add function that returns the control name. Allows this to be used in places where the normal v4l2_ctrl_query_fill() function cannot be used (e.g. uvc). Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8635): v4l: add AC-3 audio support to the MPEG Encoding APIHans Verkuil2008-10-122-5/+60
| | | | | | | | Some models of the saa6752hs support AC-3. Extend the API with the necessary controls for AC-3. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8634): v4l2: extend MPEG Encoding API with AVC and AACJanne Grunau2008-10-123-9/+16
| | | | | | | | | | Adds Advanced Audio Coding (AAC) and MPEG-4 Advanced Video Coding (AVC/H.264) as audio/video codecs to the extended controls API. Updates cx2341x driver to the new values. Signed-off-by: Janne Grunau <j@jannau.net> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8630): First mxb cleanup phaseHans Verkuil2008-10-124-302/+155
| | | | | Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8628): bttv: Add support for Encore ENLTV2-FMMauro Carvalho Chehab2008-10-126-8/+140
| | | | | | | | Thanks to Sistema Fenix (http://www.sistemafenix.com.br/) and CDI Brasil (www.cdibrasil.com.br/) for sponsoring this development. Signed-off-by: Gilberto <gilberto@sistemafenix.com.br> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (8628a): Remove duplicated includeMauro Carvalho Chehab2008-10-121-1/+0
| | | | | | Removes duplicated #include <v4l2-ioctl.h> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* V4L/DVB (8627): Fix mute on bttv driverMauro Carvalho Chehab2008-10-121-0/+5
| | | | Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8626): Add support for TCL tuner MF02GIP-5N-EMauro Carvalho Chehab2008-10-124-0/+26
| | | | | | | | | Thanks to Sistema Fenix (http://www.sistemafenix.com.br/) and CDI Brasil (www.cdibrasil.com.br/) for sponsoring this development. Signed-off-by: Gilberto <gilberto@sistemafenix.com.br> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8625): saa7134: Add NEC prococol IR decoding capabilityMauro Carvalho Chehab2008-10-122-6/+139
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the capability of decoding NEC protocol, received via GPIO18 line. This GPIO port can trigger saa7134 IRQ. A future improvement would be to make it a little more generic to work also with GPIO16 line. A pure IRQ code didn't work, since some delays were introduced on the tests we did. A possible approach would be to use polling at a rate of 2.5 ms or less. If a new code were taken, a code similar to nec_task() could be used. However, this would add an extra overhead to kernel, and will consume more power. Due to that, we took an hybrid approach: an IRQ upper half to trigger when a new key is received and a bottom half to convert pulse-distance into a keycode. The bottom half is polling based, to improve performance. During the bottom half proccess, GPIO18 IRQ line is disabled, preventing IRQ reentrancy and improving performance a little bit. Thanks to Sistema Fenix (http://www.sistemafenix.com.br/) for sponsoring this development. Signed-off-by: Gilberto <gilberto@sistemafenix.com.br> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8613): v4l: move BKL down to the driver level.Hans Verkuil2008-10-1226-25/+146
| | | | | | | | | | | The BKL is now moved from the video_open function in v4l2-dev.c to the various drivers. It seems about a third of the drivers already has a lock of some sort protecting the open(), another third uses video_exclusive_open (yuck!) and the last third required adding the BKL in their open function. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8561): make ivtv_claim_stream() staticAdrian Bunk2008-10-122-6/+1
| | | | | | | | ivtv_claim_stream() can now become static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8560): replace __FUNCTION__ with __func__Alexander Beregalov2008-10-122-18/+18
| | | | | | | v4l/drx397xD: replace __FUNCTION__ with __func__ Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB: follow lspci device/vendor styleBjorn Helgaas2008-10-1210-12/+12
| | | | | | | | Use "[%04x:%04x]" for PCI vendor/device IDs to follow the format used by lspci(8). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8554): media/video/Kconfig: cosmetic changes and convert select ↵Mauro Carvalho Chehab2008-10-121-60/+58
| | | | | | | | | | | | | | into depends on It seems cosmetically better to let USB drivers be the last one. Also, two SOC drivers were using select, instead of depends on SOC_CAMERA. Since select has some drawbacks when checking for dependencies, convert those two into depends on. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* V4L/DVB (8553): media/video/Kconfig: get rid of a selectMauro Carvalho Chehab2008-10-121-2/+1
| | | | Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
* Merge branch 'for_linus' of ↵Linus Torvalds2008-10-1151-2533/+2581
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (43 commits) ext4: Rename ext4dev to ext4 ext4: Avoid double dirtying of super block in ext4_put_super() Update ext4 MAINTAINERS file Hook ext4 to the vfs fiemap interface. generic block based fiemap implementation ocfs2: fiemap support vfs: vfs-level fiemap interface ext4: fix xattr deadlock jbd2: Fix buffer head leak when writing the commit block ext4: Add debugging markers that can be used by systemtap jbd2: abort instead of waiting for nonexistent transaction ext4: fix initialization of UNINIT bitmap blocks ext4: Remove old legacy block allocator ext4: Use readahead when reading an inode from the inode table ext4: Improve the documentation for ext4's /proc tunables ext4: Combine proc file handling into a single set of functions ext4: move /proc setup and teardown out of mballoc.c ext4: Don't use 'struct dentry' for internal lookups ext4/jbd2: Avoid WARN() messages when failing to write to the superblock ext4: use percpu data structures for lg_prealloc_list ...
| * ext4: Rename ext4dev to ext4Theodore Ts'o2008-10-1013-88/+123
| | | | | | | | | | | | | | | | The ext4 filesystem is getting stable enough that it's time to drop the "dev" prefix. Also remove the requirement for the TEST_FILESYS flag. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: Avoid double dirtying of super block in ext4_put_super()Andi Kleen2008-10-061-2/+0
| | | | | | | | | | | | | | | | | | | | While reading code I noticed that ext4_put_super() dirties the superblock bh twice. It is always done in ext4_commit_super() too. Remove the redundant dirty operation. Should be a nop semantically. Signed-off-by: Andi Kleen <ak@linux.intel.com>
| * Update ext4 MAINTAINERS fileTheodore Ts'o2008-10-061-2/+3
| | | | | | | | | | | | | | | | The ext4 entry was copied from ext3 and was never correct. Update it so that Theodore Ts'o is listed as the maintainer, and point the website to http://ext4.wiki.kernel.org. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * Hook ext4 to the vfs fiemap interface.Eric Sandeen2008-10-075-2/+271
| | | | | | | | | | | | | | | | | | | | ext4_ext_walk_space() was reinstated to be used for iterating over file extents with a callback; it is used by the ext4 fiemap implementation. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: linux-ext4@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org
| * generic block based fiemap implementationJosef Bacik2008-10-038-0/+143
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Any block based fs (this patch includes ext3) just has to declare its own fiemap() function and then call this generic function with its own get_block_t. This works well for block based filesystems that will map multiple contiguous blocks at one time, but will work for filesystems that only map one block at a time, you will just end up with an "extent" for each block. One gotcha is this will not play nicely where there is hole+data after the EOF. This function will assume its hit the end of the data as soon as it hits a hole after the EOF, so if there is any data past that it will not pick that up. AFAIK no block based fs does this anyway, but its in the comments of the function anyway just in case. Signed-off-by: Josef Bacik <jbacik@redhat.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: linux-fsdevel@vger.kernel.org
| * ocfs2: fiemap supportMark Fasheh2008-10-035-62/+306
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Plug ocfs2 into ->fiemap. Some portions of ocfs2_get_clusters() had to be refactored so that the extent cache can be skipped in favor of going directly to the on-disk records. This makes it easier for us to determine which extent is the last one in the btree. Also, I'm not sure we want to be caching fiemap lookups anyway as they're not directly related to data read/write. Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: ocfs2-devel@oss.oracle.com Cc: linux-fsdevel@vger.kernel.org
| * vfs: vfs-level fiemap interfaceMark Fasheh2008-10-084-0/+465
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Basic vfs-level fiemap infrastructure, which sets up a new ->fiemap inode operation. Userspace can get extent information on a file via fiemap ioctl. As input, the fiemap ioctl takes a struct fiemap which includes an array of struct fiemap_extent (fm_extents). Size of the extent array is passed as fm_extent_count and number of extents returned will be written into fm_mapped_extents. Offset and length fields on the fiemap structure (fm_start, fm_length) describe a logical range which will be searched for extents. All extents returned will at least partially contain this range. The actual extent offsets and ranges returned will be unmodified from their offset and range on-disk. The fiemap ioctl returns '0' on success. On error, -1 is returned and errno is set. If errno is equal to EBADR, then fm_flags will contain those flags which were passed in which the kernel did not understand. On all other errors, the contents of fm_extents is undefined. As fiemap evolved, there have been many authors of the vfs patch. As far as I can tell, the list includes: Kalpak Shah <kalpak.shah@sun.com> Andreas Dilger <adilger@sun.com> Eric Sandeen <sandeen@redhat.com> Mark Fasheh <mfasheh@suse.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: linux-api@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org
| * ext4: fix xattr deadlockKalpak Shah2008-10-081-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | ext4_xattr_set_handle() eventually ends up calling ext4_mark_inode_dirty() which tries to expand the inode by shifting the EAs. This leads to the xattr_sem being downed again and leading to a deadlock. This patch makes sure that if ext4_xattr_set_handle() is in the call-chain, ext4_mark_inode_dirty() will not expand the inode. Signed-off-by: Kalpak Shah <kalpak.shah@sun.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * jbd2: Fix buffer head leak when writing the commit blockTheodore Ts'o2008-10-061-3/+2
| | | | | | | | | | | | | | | | | | Also make sure the buffer heads are marked clean before submitting bh for writing. The previous code was marking the buffer head dirty, which would have forced an unneeded write (and seek) to the journal for no good reason. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: Add debugging markers that can be used by systemtapTheodore Ts'o2008-10-054-0/+16
| | | | | | | | | | | | | | This debugging markers are designed to debug problems such as the random filesystem latency problems reported by Arjan. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * jbd2: abort instead of waiting for nonexistent transactionDuane Griffin2008-10-081-2/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The __jbd2_log_wait_for_space function sits in a loop checkpointing transactions until there is sufficient space free in the journal. However, if there are no transactions to be processed (e.g. because the free space calculation is wrong due to a corrupted filesystem) it will never progress. Check for space being required when no transactions are outstanding and abort the journal instead of endlessly looping. This patch fixes the bug reported by Sami Liedes at: http://bugzilla.kernel.org/show_bug.cgi?id=10976 Signed-off-by: Duane Griffin <duaneg@dghda.com> Cc: Sami Liedes <sliedes@cc.hut.fi> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: fix initialization of UNINIT bitmap blocksFrederic Bohe2008-10-103-3/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes a bug which caused on-line resizing of filesystems with a 1k blocksize to fail. The root cause of this bug was the fact that if an uninitalized bitmap block gets read in by userspace (which e2fsprogs does try to avoid, but can happen when the blocksize is less than the pagesize and an adjacent blocks is read into memory) ext4_read_block_bitmap() was erroneously depending on the buffer uptodate flag to decide whether it needed to initialize the bitmap block in memory --- i.e., to set the standard set of blocks in use by a block group (superblock, bitmaps, inode table, etc.). Essentially, ext4_read_block_bitmap() assumed it was the only routine that might try to read a block containing a block bitmap, which is simply not true. To fix this, ext4_read_block_bitmap() and ext4_read_inode_bitmap() must always initialize uninitialized bitmap blocks. Once a block or inode is allocated out of that bitmap, it will be marked as initialized in the block group descriptor, so in general this won't result any extra unnecessary work. Signed-off-by: Frederic Bohe <frederic.bohe@bull.net> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: Remove old legacy block allocatorTheodore Ts'o2008-10-1012-1528/+40
| | | | | | | | Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: Use readahead when reading an inode from the inode tableTheodore Ts'o2008-10-096-72/+101
| | | | | | | | | | | | | | | | | | | | | | | | With modern hard drives, reading 64k takes roughly the same time as reading a 4k block. So request readahead for adjacent inode table blocks to reduce the time it takes when iterating over directories (especially when doing this in htree sort order) in a cold cache case. With this patch, the time it takes to run "git status" on a kernel tree after flushing the caches via "echo 3 > /proc/sys/vm/drop_caches" is reduced by 21%. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: Improve the documentation for ext4's /proc tunablesTheodore Ts'o2008-10-091-37/+33
| | | | | | | | | | | | Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Alex Tomas <bzzz@sun.com> Cc: Andreas Dilger <adilger@sun.com>
| * ext4: Combine proc file handling into a single set of functionsTheodore Ts'o2008-09-234-69/+70
| | | | | | | | | | | | | | | | | | Previously mballoc created a separate set of functions for each proc file. This combines the tunables into a single set of functions which gets used for all of the per-superblock proc files, saving approximately 2k of compiled object code. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: move /proc setup and teardown out of mballoc.cTheodore Ts'o2008-09-235-56/+42
| | | | | | | | | | | | | | ...and into the core setup/teardown code in fs/ext4/super.c so that other parts of ext4 can define tuning parameters. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: Don't use 'struct dentry' for internal lookupsTheodore Ts'o2008-09-221-35/+33
| | | | | | | | | | | | | | | | | | | | | | | | This is a port of a patch from Linus which fixes a 200+ byte stack usage problem in ext4_get_parent(). It's more efficient to pass down only the actual parts of the dentry that matter: the parent inode and the name, instead of allocating a struct dentry on the stack. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4/jbd2: Avoid WARN() messages when failing to write to the superblockTheodore Ts'o2008-10-062-3/+47
| | | | | | | | | | | | This fixes some very common warnings reported by kerneloops.org Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: use percpu data structures for lg_prealloc_listEric Sandeen2008-09-131-8/+5
| | | | | | | | | | | | | | | | | | | | lg_prealloc_list seems to cry out for a per-cpu data structure; on a large smp system I think this should be better. I've lightly tested this change on a 4-cpu system. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Acked-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * ext4: Renumber EXT4_IOC_MIGRATETheodore Ts'o2008-09-131-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | Pick an ioctl number for EXT4_IOC_MIGRATE that won't conflict with other ext4 ioctl's. Since there haven't been any major userspace users of this ioctl, we can afford to change this now, to avoid potential problems later. Also, reorder the ioctl numbers in ext4.h to avoid this sort of mistake in the future. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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