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Update a few things which were out of date, and fix a typo.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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This patch fixes a race condition where we can receive recovery
requests part way through processing a umount. This was causing
problems since the recovery thread had already gone away.
Looking in more detail at the recovery code, it was really trying
to implement a slight variation on a work queue, and that happens to
align nicely with the recently introduced slow-work subsystem. As a
result I've updated the code to use slow-work, rather than its own home
grown variety of work queue.
When using the wait_on_bit() function, I noticed that the wait function
that was supplied as an argument was appearing in the WCHAN field, so
I've updated the function names in order to produce more meaningful
output.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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These two tunables are pointless and would never need to be
changed anyway. There is also a race between them and umount
as the deamons which they refer to might have gone away. The
easiest way to fix the race is to remove the interface.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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It has always been possible to adjust the gfs2 log commit
interval, but only from the sysfs interface. This adds a
mount option, commit=<nn>, which will be familar to ext3
users.
The sysfs interface continues to be available as well, although
this might be removed in the future.
Also this patch cleans up some duplicated structures in the GFS2
sysfs code.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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There seems little point grabbing the transaction glock
only to have to release it again if the journal isn't
live. This moves the test earlier to avoid grabbing the lock
when we don't need it in the first place.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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This patch copies the timestamps from the vfs inode into gfs2 and syncs
it to the disk inode during writes.
Signed-off-by: Abhijith Das <adas@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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For some reason GFS2 has been missing support for non-linear
mappings. This patch fixes that, and also avoids taking any
locks for mmap in the O_NOATIME case. In fact we don't actually need
to take the lock here at all - just doing file_accessed() would be
enough, but we have to take the lock eventually and this helps
it hit disk (and thus be seen by other nodes) faster.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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This adds a GFS2 specific writepage for metadata, rather than
continuing to use the VFS function. As a result we now tag all
our metadata I/O with the correct flag so that blktraces will
now be less confusing.
Also, the generic function was checking for a number of corner
cases which cannot happen on the metadata address spaces so that
this should be faster too.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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After Jens recent updates:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a1f242524c3c1f5d40f1c9c343427e34d1aadd6e
et al. this is a patch to bring gfs2 uptodate with the core
code. Also I've managed to squash another call to ll_rw_block()
along the way.
There is still one part of the GFS2 I/O paths which are not correctly
annotated and that is due to the sharing of the writeback code between
the data and metadata address spaces. I would like to change that too,
but this patch is still worth doing on its own, I think.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6:
Staging: comedi: David doesn't want to get comedi patches
Staging: rtl8187se: Fix compilation warnings and procfs directory leak
Staging: rt2870: new device id
Staging: w35und: unregister device from the ieee80211 stack upon ->disconnect()
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
usb-serial: ftdi_sio: fix reference counting of ftdi_private
USB: unusual_devs: extend nokia 6288 bcd range
USB: Gadget: fix UTF conversion in the usbstring library
USB: Fix makefile so that CONFIG_WDM and CONFIG_TMC work.
USB: ftdi_sio: add vendor/product id for the Marvell SheevaPlug
USB: cxacru: Fix negative dB output
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
Revert driver core: move platform_data into platform_device
Revert driver core: fix passing platform_data
Remove old PRINTK_DEBUG config item
Doc/sysfs-rules: Swap the order of the words so the sentence makes more sense
Driver core: platform: fix kernel-doc warnings
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (22 commits)
Fix the race between capifs remount and node creation
Fix races around the access to ->s_options
switch ufs directories to ufs_sync_file()
Switch open_exec() and sys_uselib() to do_open_filp()
Make open_exec() and sys_uselib() use may_open(), instead of duplicating its parts
Reduce path_lookup() abuses
Make checkpatch.pl shut up on fs/inode.c
NULL noise in fs/super.c:kill_bdev_super()
romfs: cleanup romfs_fs.h
ROMFS: romfs_dev_read() error ignored
fs: dcache fix LRU ordering
ocfs2: Use nd_set_link().
Fix deadlock in ipathfs ->get_sb()
Fix a leak in failure exit in 9p ->get_sb()
Convert obvious places to deactivate_locked_super()
New helper: deactivate_locked_super()
reiserfs: remove privroot hiding in lookup
reiserfs: dont associate security.* with xattr files
reiserfs: fixup xattr_root caching
Always lookup priv_root on reiserfs mount and keep it
...
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* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
GFS2: Fix glock ref counting bug
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Fix line-in on Mac Mini Core2 Duo
ALSA: Release v1.0.20
sound: via82xx: fix DXS volume range
sound: serial-u16550: fix buffer overflow
ASoC: Fix errors in WM8990
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6:
V4L/DVB (11680): cafe_ccic: use = instead of == for setting a value at a var
V4L/DVB (11679): cafe_ccic: fix sensor detection
V4L/DVB (11675): ivtv/radio: fix V4L2_TUNER_MODE/V4L2_TUNER_SUB confusion
V4L/DVB (11674): ivtv: fix incorrect bit tests
V4L/DVB (11669): uvc: fix compile warning
V4L/DVB (11668): ivtv: fix compiler warning.
V4L/DVB (11664): cx23885: Frontend wasn't locking on HVR-1500
V4L/DVB (11662): v4l2-ioctl: Clear buffer type specific trailing fields/padding
V4L/DVB (11661): v4l2-ioctl: Check buffer types using g_fmt instead of try_fmt
V4L/DVB (11660): zoran: fix bug when enumerating format -1
V4L/DVB (11575): uvcvideo: fix uvc resume failed
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (26 commits)
bonding: fix panic if initialization fails
IXP4xx: complete Ethernet netdev setup before calling register_netdev().
IXP4xx: use "ENODEV" instead of "ENOSYS" in module initialization.
ipvs: Fix IPv4 FWMARK virtual services
ipv4: Make INET_LRO a bool instead of tristate.
net: remove stale reference to fastroute from Kconfig help text
net: update skb_recycle_check() for hardware timestamping changes
bnx2: Fix panic in bnx2_poll_work().
net-sched: fix bfifo default limit
igb: resolve panic on shutdown when SR-IOV is enabled
wimax: oops: wimax_dev_add() is the only one that can initialize the state
wimax: fix oops if netlink fails to add attribute
Bluetooth: Move dev_set_name() to a context that can sleep
netfilter: ctnetlink: fix wrong message type in user updates
netfilter: xt_cluster: fix use of cluster match with 32 nodes
netfilter: ip6t_ipv6header: fix match on packets ending with NEXTHDR_NONE
netfilter: add missing linux/types.h include to xt_LED.h
mac80211: pid, fix memory corruption
mac80211: minstrel, fix memory corruption
cfg80211: fix comment on regulatory hint processing
...
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* fix/asoc:
ASoC: Fix errors in WM8990
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* fix/hda:
ALSA: hda - Fix line-in on Mac Mini Core2 Duo
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* topic/misc:
ALSA: Release v1.0.20
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* fix/misc:
sound: via82xx: fix DXS volume range
sound: serial-u16550: fix buffer overflow
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/home/v4l/master/v4l/cafe_ccic.c: In function 'cafe_cam_init':
/home/v4l/master/v4l/cafe_ccic.c:778: warning: statement with no effect
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: saeed bishara <saeed.bishara@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Due to an uninitialized chip.ident field the chip identification failed.
Thanks-to: Saeed Bishara <saeed.bishara@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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V4L2_TUNER_MODE_ was used in a few places where V4L2_TUNER_SUB_ should have
been used.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Found the coccinelle tool.
Thanks-to: Julia Lawall <julia@diku.dk>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The 2.6.30 kernel generates this warning:
uvc_driver.c:1729: warning: 'ret' may be used uninitialized in this function
I guess some new warning flag must have been turned on since this warning
didn't appear with older kernels (gcc version 4.3.1). It's also a bogus
warning, but since this code didn't comply to the coding standard anyway
I've modified it to 1) remove the warning and 2) conform to the coding
standard.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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The boards control struct wasn't updated when (presumably) all of the
other drivers migrated from using scode_table to specifying the demod.
Signed-off-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Some ioctls have structs that are a different size depending on what type
of buffer is being used. If the buffer type leaves a field unused or has
padding space at the end, this space should be zeroed out.
The problems with S_FMT and REQBUFS were original identified and patched by
Marton Nemeth <nm127@freemail.hu>.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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For a number of different ioctls, the v4l2-ioctl code checks that the
passed buffer type is supported by the driver. It did this by checking
that the driver defined a method for the try_fmt handler for that buffer
type. However, try_fmt is optional and a driver might not provide it even
though it does support that type. So use g_fmt instead, since that isn't
optional.
This should fix a problem with VBI capture with saa7146.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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If someone requests a format at fmt->index == (unsigned)-1 and the first
format in the array doesn't have the requested type then num will still be
-1 when it's compared to fmt->index and there will appear to be a match.
Restructure the loop so this can't happen. It's simpler this way too. The
unnecessary check for (unsigned)fmt->index < 0 found by Roel Kluin
<roel.kluin@gmail.com> is removed this way too.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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Now urb buffers is not freed before suspend, so uvc_alloc_urb_buffers should
return packet counts allocated originally during uvc resume, instead of zero.
This version uses round down to return packet counts on Linus' suggestions,
or else may lead to buffer destructed if packet size is changed before
calling uvc_alloc_urb_buffers() in this kind of case.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6
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If module initialisation failed (e.g. because the bonding sysfs entry
cannot be created), kernel panics:
IP: [<ffffffff8024910a>] destroy_workqueue+0x2d/0x146
Call Trace:
[<ffffffff808268c4>] bond_destructor+0x28/0x78
[<ffffffff80b64471>] netdev_run_todo+0x231/0x25a
[<ffffffff80b6dbcd>] rtnl_unlock+0x9/0xb
[<ffffffff81567907>] bonding_init+0x83e/0x84a
Remove the calls to bond_work_cancel_all() and destroy_workqueue();
both are also called/scheduled via bond_free_all().
bond_destroy_sysfs is unecessary because the sysfs entry has
not been created in the error case.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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we don't want to deal with half-updated config
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Put generic_show_options read access to s_options under rcu_read_lock,
split save_mount_options() into "we are setting it the first time"
(uses in foo_fill_super()) and "we are relacing and freeing the old one",
synchronize_rcu() before kfree() in the latter.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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... and make path_lookup_open() static
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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parts
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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... use kern_path() where possible
[folded a fix from rdd]
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Code Quality According To Mingo(tm) has been vastly improved,
no code has been damaged^Wchanged^Wdamaged.
[commit message rewritten -- AV]
Signed-off-by: Manish Katiyar <mkatiyar@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Subrata Modak <subrata@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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There's no kernel-only content in it anymore, so move it to header-y
and remove the superflous #ifdef __KERNEL__.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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romfs_dev_read() may return -EIO, but ret is unsigned, so the errorpath
isn't taken.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Fix ordering of LRU when moving referenced dentries to the head of the list
(they should go to the head of the list in the same order as they were found
from the tail, rather than reverse order).
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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ocfs2 was hand-calling vfs_follow_link(), but there's no point to that.
Let's use page_follow_link_light() and nd_set_link().
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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forgot to unlock superblock before calling deactivate_super()...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Does equivalent of up_write(&s->s_umount); deactivate_super(s);
However, it does not does not unlock it until it's all over.
As the result, it's safe to use to dispose of new superblock on ->get_sb()
failure exits - nobody will see the sucker until it's all over.
Equivalent using up_write/deactivate_super is safe for that purpose
if superblock is either safe to use or has NULL ->s_root when we unlock.
Normally filesystems take the required precautions, but
a) we do have bugs in that area in some of them.
b) up_write/deactivate_super sequence is extremely common,
so the helper makes sense anyway.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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