The ioctls for the generic freeze feature are below.
o Freeze the filesystem
int ioctl(int fd, int FIFREEZE, arg)
fd: The file descriptor of the mountpoint
FIFREEZE: request code for the freeze
arg: Ignored
Return value: 0 if the operation succeeds. Otherwise, -1
o Unfreeze the filesystem
int ioctl(int fd, int FITHAW, arg)
fd: The file descriptor of the mountpoint
FITHAW: request code for unfreeze
arg: Ignored
Return value: 0 if the operation succeeds. Otherwise, -1
Error number: If the filesystem has already been unfrozen,
errno is set to EINVAL.
[akpm@linux-foundation.org: fix CONFIG_BLOCK=n] Signed-off-by: Takashi Sato <t-sato@yk.jp.nec.com> Signed-off-by: Masayuki Hamaguchi <m-hamaguchi@ys.jp.nec.com> Cc: <xfs-masters@oss.sgi.com> Cc: <linux-ext4@vger.kernel.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Alasdair G Kergon <agk@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Takashi Sato [Sat, 10 Jan 2009 00:40:58 +0000 (16:40 -0800)]
filesystem freeze: add error handling of write_super_lockfs/unlockfs
Currently, ext3 in mainline Linux doesn't have the freeze feature which
suspends write requests. So, we cannot take a backup which keeps the
filesystem's consistency with the storage device's features (snapshot and
replication) while it is mounted.
In many case, a commercial filesystem (e.g. VxFS) has the freeze feature
and it would be used to get the consistent backup.
If Linux's standard filesystem ext3 has the freeze feature, we can do it
without a commercial filesystem.
So I have implemented the ioctls of the freeze feature.
I think we can take the consistent backup with the following steps.
1. Freeze the filesystem with the freeze ioctl.
2. Separate the replication volume or create the snapshot
with the storage device's feature.
3. Unfreeze the filesystem with the unfreeze ioctl.
4. Take the backup from the separated replication volume
or the snapshot.
This patch:
VFS:
Changed the type of write_super_lockfs and unlockfs from "void"
to "int" so that they can return an error.
Rename write_super_lockfs and unlockfs of the super block operation
freeze_fs and unfreeze_fs to avoid a confusion.
ext3, ext4, xfs, gfs2, jfs:
Changed the type of write_super_lockfs and unlockfs from "void"
to "int" so that write_super_lockfs returns an error if needed,
and unlockfs always returns 0.
reiserfs:
Changed the type of write_super_lockfs and unlockfs from "void"
to "int" so that they always return 0 (success) to keep a current behavior.
Signed-off-by: Takashi Sato <t-sato@yk.jp.nec.com> Signed-off-by: Masayuki Hamaguchi <m-hamaguchi@ys.jp.nec.com> Cc: <xfs-masters@oss.sgi.com> Cc: <linux-ext4@vger.kernel.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Alasdair G Kergon <agk@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Harvey Harrison [Sat, 10 Jan 2009 00:40:56 +0000 (16:40 -0800)]
memstick: annotate endianness of attribute structs
The code was shifting the endianness appropriately everywhere, annotate
the structs to avoid the sparse warnings when assigning the endian types
to the struct members, or passing them to be[16|32]_to_cpu:
drivers/memstick/core/mspro_block.c:331:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:333:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:335:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:337:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:341:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:347:4: warning: cast to restricted __be32
drivers/memstick/core/mspro_block.c:356:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:358:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:364:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:367:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:369:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:371:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:377:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:478:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:480:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:482:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:484:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:486:4: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:689:22: expected unsigned int [unsigned] [assigned] data_address
drivers/memstick/core/mspro_block.c:689:22: got restricted __be32 [usertype] <noident>
drivers/memstick/core/mspro_block.c:697:3: warning: cast to restricted __be32
drivers/memstick/core/mspro_block.c:960:17: warning: incorrect type in initializer (different base types)
drivers/memstick/core/mspro_block.c:960:17: expected unsigned short [unsigned] data_count
drivers/memstick/core/mspro_block.c:960:17: got restricted __be16 [usertype] <noident>
drivers/memstick/core/mspro_block.c:993:6: warning: cast to restricted __be16
drivers/memstick/core/mspro_block.c:995:28: warning: cast to restricted __be16
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Alex Dubov <oakad@yahoo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Larry Finger [Sat, 10 Jan 2009 00:40:54 +0000 (16:40 -0800)]
hp-wmi: handle rfkill_register() failure
Compilation of the HP WMI hotkeys code results in the following:
CC [M] drivers/platform/x86/hp-wmi.o
drivers/platform/x86/hp-wmi.c: In function hp_wmi_bios_setup:
drivers/platform/x86/hp-wmi.c:431: warning: ignoring return value of rfkill_register,
declared with attribute warn_unused_result
drivers/platform/x86/hp-wmi.c:441: warning: ignoring return value of rfkill_register,
declared with attribute warn_unused_result
drivers/platform/x86/hp-wmi.c:450: warning: ignoring return value of rfkill_register,
declared with attribute warn_unused_result
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Len Brown <lenb@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Brownell [Sat, 10 Jan 2009 00:40:52 +0000 (16:40 -0800)]
CORE_DUMP_DEFAULT_ELF_HEADERS depends on ELF_CORE
Kernels that don't support ELF coredumps at all surely can't be supporting
new partial-segment flavored ELF coredumps ... don't make folk answer
Kconfig questions about that flavor.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-async-2:
async: make async a command line option for now
partial revert of asynchronous inode delete
Linus Torvalds [Fri, 9 Jan 2009 23:30:30 +0000 (15:30 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: core: fix sleep in atomic context due to driver core change
Linus Torvalds [Fri, 9 Jan 2009 23:27:39 +0000 (15:27 -0800)]
Merge branch 'for_2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6
* 'for_2.6.29' of git://git.kernel.org/pub/scm/linux/kernel/git/kkeil/ISDN-2.6: (28 commits)
mISDN: Add HFC USB driver
mISDN: Add layer1 prim MPH_INFORMATION_REQ
mISDN: Fix kernel crash when doing hardware conference with more than two members
mISDN: Added missing create_l1() call
mISDN: Add MODULE_DEVICE_TABLE() to hfcpci
mISDN: Minor cleanups
mISDN: Create /sys/class/mISDN
mISDN: Add missing release functions
mISDN: Add different different timer settings for hfc-pci
mISDN: Minor fixes
mISDN: Correct busy device detection
mISDN: Fix deactivation, if peer IP is removed from l1oip instance.
mISDN: Add ISDN_P_TE_UP0 / ISDN_P_NT_UP0
mISDN: Fix irq detection
mISDN: Add ISDN sample clock API to mISDN core
mISDN: Return error on E-channel access
mISDN: Add E-Channel logging features
mISDN: Use protocol to detect D-channel
mISDN: Fixed more indexing bugs
mISDN: Make debug output a little bit more verbose
...
Stefan Richter [Fri, 9 Jan 2009 19:49:37 +0000 (20:49 +0100)]
firewire: core: fix sleep in atomic context due to driver core change
Due to commit 2831fe6f9cc4e16c103504ee09a47a084297c0f3, "driver core:
create a private portion of struct device", device_initialize() can no
longer be called from atomic contexts.
We now defer it until after config ROM probing. This requires changes
to the bus manager code because this may use a device before it was
probed.
Reported-by: Jay Fenlason <fenlason@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
* git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-nommu:
NOMMU: Support XIP on initramfs
NOMMU: Teach kobjsize() about VMA regions.
FLAT: Don't attempt to expand the userspace stack to fill the space allocated
FDPIC: Don't attempt to expand the userspace stack to fill the space allocated
NOMMU: Improve procfs output using per-MM VMAs
NOMMU: Make mmap allocation page trimming behaviour configurable.
NOMMU: Make VMAs per MM as for MMU-mode linux
NOMMU: Delete askedalloc and realalloc variables
NOMMU: Rename ARM's struct vm_region
NOMMU: Fix cleanup handling in ramfs_nommu_get_umapped_area()
Linus Torvalds [Fri, 9 Jan 2009 21:56:06 +0000 (13:56 -0800)]
Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] update documentation for hvc_iucv kernel parameter.
[S390] hvc_iucv: Special handling of IUCV HVC devices
[S390] hvc_iucv: Refactor console and device initialization
[S390] hvc_iucv: Update function documentation
[S390] hvc_iucv: Limit rate of outgoing IUCV messages
[S390] hvc_iucv: Change IUCV term id and use one device as default
[S390] Use unsigned long long for u64 on 64bit.
[S390] qdio: fix broken pointer in case of CONFIG_DEBUG_FS is disabled
[S390] vdso: compile fix
[S390] remove code for oldselect system call
[S390] types: add/fix types.h include in header files
[S390] dasd: add device attribute to disable blocking on lost paths
[S390] dasd: send change uevents for dasd block devices
[S390] tape block: fix dependencies
[S390] asm-s390/posix_types.h: drop __USE_ALL usage
[S390] gettimeofday.S: removed duplicated #includes
[S390] ptrace: no extern declarations for userspace
Linus Torvalds [Fri, 9 Jan 2009 21:55:37 +0000 (13:55 -0800)]
Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
leds: ledtrig-timer - on deactivation hardware blinking should be disabled
leds: Add suspend/resume to the core class
leds: Add WM8350 LED driver
leds: leds-pcs9532 - Move i2c work to a workqueque
leds: leds-pca9532 - fix memory leak and properly handle errors
leds: Fix wrong loop direction on removal in leds-ams-delta
leds: fix Cobalt Raq LED dependency
leds: Fix sparse warning in leds-ams-delta
leds: Fixup kdoc comment to match parameter names
leds: Make header variable naming consistent
leds: eds-pca9532: mark pca9532_event() static
leds: ALIX.2 LEDs driver
Linus Torvalds [Fri, 9 Jan 2009 21:55:13 +0000 (13:55 -0800)]
Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
backlight: Rename the corgi backlight driver to generic
backlight: add support for Toppoly TDO35S series to tdo24m lcd driver
backlight: Add suspend/resume support to the backlight core
bd->props.brightness doesn't reflect the actual backlight level.
backlight: Support VGA/QVGA mode switching in tosa_lcd
backlight: Catch invalid input in sysfs attributes
backlight: Value of ILI9320_RGB_IF2 register should not be hardcoded
backlight: crbllcd_bl - Use platform_device_register_simple()
backlight: progear_bl - Use platform_device_register_simple()
backlight: hp680_bl - Use platform_device_register_simple()
Martin Bachem [Tue, 4 Nov 2008 13:11:22 +0000 (14:11 +0100)]
mISDN: Add layer1 prim MPH_INFORMATION_REQ
MPH_INFORMATION provides full D- and B-Channel status overview
- new layer1 primitive: MPF_INFORMATON_REQ
- layer1 replies with MPH_INFORMATION_IND containing
- dch->[state,Flags,nrbchan]
- bch[]->[protocol,Flags]
- hardware driver should send MPH_INFORMATION_IND
on all ph state changes and BChannel state changes to MISDN_ID_ANY
Signed-off-by: Martin Bachem <m.bachem@gmx.de> Signed-off-by: Karsten Keil <kkeil@suse.de>
Add missing release function of ec-devices. Each device require a relase
function now. All destruction (memory and list entry) must be done within
the given release function of device, rather than after unregistering device.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu> Signed-off-by: Karsten Keil <kkeil@suse.de>
mISDN: Add different different timer settings for hfc-pci
- Poll-timer can now be set from 8 to 256 samples, depending on your kernel.
- If default or 128 is used, the normal controller's clock is used as before.
Usage: modprobe hfcpci poll=XXX
- Added some debug code for dsp buffer size. (CMX_DELAY_DEBUG)
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu> Signed-off-by: Karsten Keil <kkeil@suse.de>
Martin Bachem [Wed, 3 Sep 2008 13:17:45 +0000 (15:17 +0200)]
mISDN: Add E-Channel logging features
New prim PH_DATA_E_IND.
- all E-ch frames are indicated by recv_Echannel(), which pushes E-Channel
frames into dch's rqueue
- if dchannel is opened with channel nr 0, no E-Channel logging
is requested
- if dchannel is opened with channel nr 1, E-Channel logging
is requested. if layer1 does not support that, -EINVAL
in return is appropriate
Signed-off-by: Martin Bachem <m.bachem@gmx.de> Signed-off-by: Karsten Keil <kkeil@suse.de>
mISDN: Add feature via MISDN_CTRL_FILL_EMPTY to fill fifo if empty
This prevents underrun of fifo when filled and in case of an underrun it
prevents subsequent underruns due to jitter.
Improve dsp, so buffers are kept filled with a certain delay, so moderate
jitter will not cause underrun all the time -> the audio quality is highly
improved. tones are not interrupted by gaps anymore, except when CPU is
stalling or in high load.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu> Signed-off-by: Karsten Keil <kkeil@suse.de>
'rb_prev()', 'rb_next()' and 'rb_replace_node()' are declared in
include/linux/rbtree.h, no need for JFFS2 to re-declare them. I
believe these are left-overs from the old days when the common
RB tree code did not have those call and JFFS2 had private
implementation.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (864 commits)
Btrfs: explicitly mark the tree log root for writeback
Btrfs: Drop the hardware crc32c asm code
Btrfs: Add Documentation/filesystem/btrfs.txt, remove old COPYING
Btrfs: kmap_atomic(KM_USER0) is safe for btrfs_readpage_end_io_hook
Btrfs: Don't use kmap_atomic(..., KM_IRQ0) during checksum verifies
Btrfs: tree logging checksum fixes
Btrfs: don't change file extent's ram_bytes in btrfs_drop_extents
Btrfs: Use btrfs_join_transaction to avoid deadlocks during snapshot creation
Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code
Btrfs: drop EXPORT symbols from extent_io.c
Btrfs: Fix checkpatch.pl warnings
Btrfs: Fix free block discard calls down to the block layer
Btrfs: avoid orphan inode caused by log replay
Btrfs: avoid potential super block corruption
Btrfs: do not call kfree if kmalloc failed in btrfs_sysfs_add_super
Btrfs: fix a memory leak in btrfs_get_sb
Btrfs: Fix typo in clear_state_cb
Btrfs: Fix memset length in btrfs_file_write
Btrfs: update directory's size when creating subvol/snapshot
Btrfs: add permission checks to the ioctls
...
Andi Kleen [Fri, 9 Jan 2009 20:17:39 +0000 (12:17 -0800)]
x86: only scan the root bus in early PCI quirks
We found a situation on Linus' machine that the Nvidia timer quirk hit on
a Intel chipset system. The problem is that the system has a fancy Nvidia
card with an own PCI bridge, and the early-quirks code looking for any
NVidia bridge triggered on it incorrectly. This didn't lead a boot
failure by luck, but the timer routing code selecting the wrong timer
first and some ugly messages. It might lead to real problems on other
systems.
I checked all the devices which are currently checked for by early_quirks
and it turns out they are all located in the root bus zero.
So change the early-quirks loop to only scan bus 0. This incidently also
saves quite some unnecessary scanning work, because early_quirks doesn't
go through all the non root busses.
The graphics card is not on bus 0, so it is not matched anymore.
Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
block: add one-hit cache for disk partition lookup
and has the effect of killing my machine whenever I try to assemble
an md array :-(
One of the devices in the array has partitions, and mdadm always
deletes partitions before putting a whole-device in an array (as it
can cause confusion). The next IO to that device locks the machine.
I don't really understand exactly why it locks up, but it happens in
disk_map_sector_rcu(). This patch fixes it.
Which is due to a missing clear of the (now) stale partition lookup
data. So clear that when we delete a partition.
Linus Torvalds [Fri, 9 Jan 2009 20:43:06 +0000 (12:43 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile: (31 commits)
powerpc/oprofile: fix whitespaces in op_model_cell.c
powerpc/oprofile: IBM CELL: add SPU event profiling support
powerpc/oprofile: fix cell/pr_util.h
powerpc/oprofile: IBM CELL: cleanup and restructuring
oprofile: make new cpu buffer functions part of the api
oprofile: remove #ifdef CONFIG_OPROFILE_IBS in non-ibs code
ring_buffer: fix ring_buffer_event_length()
oprofile: use new data sample format for ibs
oprofile: add op_cpu_buffer_get_data()
oprofile: add op_cpu_buffer_add_data()
oprofile: rework implementation of cpu buffer events
oprofile: modify op_cpu_buffer_read_entry()
oprofile: add op_cpu_buffer_write_reserve()
oprofile: rename variables in add_ibs_begin()
oprofile: rename add_sample() in cpu_buffer.c
oprofile: rename variable ibs_allowed to has_ibs in op_model_amd.c
oprofile: making add_sample_entry() inline
oprofile: remove backtrace code for ibs
oprofile: remove unused ibs macro
oprofile: remove unused components in struct oprofile_cpu_buffer
...
Linus Torvalds [Fri, 9 Jan 2009 19:55:14 +0000 (11:55 -0800)]
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (94 commits)
ACPICA: hide private headers
ACPICA: create acpica/ directory
ACPI: fix build warning
ACPI : Use RSDT instead of XSDT by adding boot option of "acpi=rsdt"
ACPI: Avoid array address overflow when _CST MWAIT hint bits are set
fujitsu-laptop: Simplify SBLL/SBL2 backlight handling
fujitsu-laptop: Add BL power, LED control and radio state information
ACPICA: delete utcache.c
ACPICA: delete acdisasm.h
ACPICA: Update version to 20081204.
ACPICA: FADT: Update error msgs for consistency
ACPICA: FADT: set acpi_gbl_use_default_register_widths to TRUE by default
ACPICA: FADT parsing changes and fixes
ACPICA: Add ACPI_MUTEX_TYPE configuration option
ACPICA: Fixes for various ACPI data tables
ACPICA: Restructure includes into public/private
ACPI: remove private acpica headers from driver files
ACPI: reboot.c: use new acpi_reset interface
ACPICA: New: acpi_reset interface - write to reset register
ACPICA: Move all public H/W interfaces to new hwxface
...
Tejun Heo [Fri, 9 Jan 2009 10:19:14 +0000 (19:19 +0900)]
libata: use WARN_ON_ONCE on hot paths
Convert WARN_ON() on command issue/completion paths to WARN_ON_ONCE()
so that libata doesn't spam the machine even when one of those
conditions triggers repeatedly.
David Howells [Fri, 9 Jan 2009 16:13:46 +0000 (16:13 +0000)]
CRED: Must initialise the new creds in prepare_kernel_cred()
The newly allocated creds in prepare_kernel_cred() must be initialised
before get_uid() and get_group_info() can access them. They should be
copied from the old credentials.
Reported-by: Steve Dickson <steved@redhat.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
parisc: export length of os_hpmc vector
parisc: fix kernel crash (protection id trap) when compiling ruby1.9
parisc: Use DEFINE_SPINLOCK
parisc: add uevent helper for parisc bus
parisc: fix ipv6 checksum
parisc: quiet palo not-found message from "which"
parisc: Replace NR_CPUS in parisc code
parisc: trivial fixes
parisc: fix braino in commit adding __space_to_prot
parisc: factor out sid to protid conversion
parisc: use leX_to_cpu in place of __fswabX
parisc: fix GFP_KERNEL use while atomic in unwinder
parisc: remove dead BIO_VMERGE_BOUNDARY and BIO_VMERGE_MAX_SIZE definitions
parisc: set_time() catch errors
parisc: use the new byteorder headers
parisc: drivers/parisc/: make code static
parisc: lib/: make code static
Linus Torvalds [Fri, 9 Jan 2009 19:52:14 +0000 (11:52 -0800)]
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (22 commits)
ioat: fix self test for multi-channel case
dmaengine: bump initcall level to arch_initcall
dmaengine: advertise all channels on a device to dma_filter_fn
dmaengine: use idr for registering dma device numbers
dmaengine: add a release for dma class devices and dependent infrastructure
ioat: do not perform removal actions at shutdown
iop-adma: enable module removal
iop-adma: kill debug BUG_ON
iop-adma: let devm do its job, don't duplicate free
dmaengine: kill enum dma_state_client
dmaengine: remove 'bigref' infrastructure
dmaengine: kill struct dma_client and supporting infrastructure
dmaengine: replace dma_async_client_register with dmaengine_get
atmel-mci: convert to dma_request_channel and down-level dma_slave
dmatest: convert to dma_request_channel
dmaengine: introduce dma_request_channel and private channels
net_dma: convert to dma_find_channel
dmaengine: provide a common 'issue_pending_all' implementation
dmaengine: centralize channel allocation, introduce dma_find_channel
dmaengine: up-level reference counting to the module level
...
Chris Mason [Fri, 9 Jan 2009 18:14:17 +0000 (13:14 -0500)]
Btrfs: explicitly mark the tree log root for writeback
Each subvolume has an extent_state_tree used to mark metadata
that needs to be sent to disk while syncing the tree. This is
used in addition to the dirty bits on the pages themselves so that
a single subvolume can be sent to disk efficiently in disk order.
Normally this marking happens in btrfs_alloc_free_block, which also does
special recording of dirty tree blocks for the tree log roots.
Yan Zheng noticed that when the root of the log tree is allocated, it is added
to the wrong writeback list. The fix used here is to explicitly set
it dirty as part of tree log creation.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Philip Rakity [Wed, 8 Oct 2008 23:08:20 +0000 (16:08 -0700)]
[MTD] [NAND] add cmdline parsing (mtdparts=) support to cafe_nand
[dwmw2: updated and made to still register whole device first] Signed-off-by: Philip Rakity <pakity@yahoo.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
[S390] hvc_iucv: Special handling of IUCV HVC devices
This patch introduces special handling of the IUCV HVC console device.
If the first IUCV HVC terminal is used as (preferred) Linux console, and
needs some special handling for hangup.
The hvc_iucv_private structure contains a flag to indicate whether a IUCV
HVC device is used as a console.
A terminal acting as "console" behaves different if a tty hangup occurs:
If the iucv communication path is severed, a tty hangup is not
triggered (because the HVC layer does not notify its back-end in that case).
Instead, the console session is left unchanged and the IUCV HVC device is
reset to allow re-connects.
Note: Any output between the disconnect and a re-connect is discarded.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
[S390] hvc_iucv: Refactor console and device initialization
The console_initcall() order might pick up the hvc_iucv device as preferred
console even if it is not yet initialized.
Move HVC console instantiation to hvc_iucv_init() and cleanup device driver
initialization.
Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Jan Glauber [Fri, 9 Jan 2009 11:14:55 +0000 (12:14 +0100)]
[S390] qdio: fix broken pointer in case of CONFIG_DEBUG_FS is disabled
If CONFIG_DEBUG_FS is disabled debugfs_create_file returns -ENODEV instead
of zero. Since the return value is stored and used at shutdown to remove
existing entries an OOPS may be triggered.
Add a check of the debugfs_create_file return value and in case of an error
set the entry to NULL so it will be ignored at shutdown.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Fri, 9 Jan 2009 11:14:53 +0000 (12:14 +0100)]
[S390] remove code for oldselect system call
The system call isn't wired up on s390. Just delete the dead code.
Also we use the common code sys_ptrace system call, so the sys_ptrace
declaration is pointless is well.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Fri, 9 Jan 2009 11:14:52 +0000 (12:14 +0100)]
[S390] types: add/fix types.h include in header files
/include/asm/chpid.h:12: include of <linux/types.h> is preferred over <asm/types.h>
/include/asm/chsc.h:15: found __[us]{8,16,32,64} type without #include <linux/types.h>
/include/asm/cmb.h:28: found __[us]{8,16,32,64} type without #include <linux/types.h>
/include/asm/dasd.h:195: found __[us]{8,16,32,64} type without #include <linux/types.h>
/include/asm/kvm.h:16: include of <linux/types.h> is preferred over <asm/types.h>
/include/asm/kvm.h:30: found __[us]{8,16,32,64} type without #include <linux/types.h>
/include/asm/qeth.h:24: found __[us]{8,16,32,64} type without #include <linux/types.h>
/include/asm/schid.h:5: found __[us]{8,16,32,64} type without #include <linux/types.h>
/include/asm/swab.h:12: include of <linux/types.h> is preferred over <asm/types.h>
/include/asm/swab.h:19: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
[S390] dasd: add device attribute to disable blocking on lost paths
When the connection between host and storage server is lost, the
dasd device driver usually blocks all I/O on affected devices and
waits for them to reappear. In some setups however it would be
better if the I/O is returned as error so that device can be
recovered by some other means, eg. in a raid or multipath setup.
Signed-off-by: Holger Smolinski <Holger.Smolinski@de.ibm.com> Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
[S390] dasd: send change uevents for dasd block devices
When a DASD device enters or leaves the 'online' state we need to
trigger change events for the respective disk and partitions.
These extra events are needed because when disk and partitions are
first added, udev rules that try to read disk labels or other data
may fail as the disk may not yet be ready.
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
CC drivers/s390/char/tape_block.o
In file included from drivers/s390/char/tape_block.c:24:
drivers/s390/char/tape.h:159: warning: 'struct request' declared inside
parameter list
Adding the dependency of CONFIG_BLOCK to CONFIG_S390_TAPE_BLOCK.
Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Heiko Carstens [Fri, 9 Jan 2009 11:14:46 +0000 (12:14 +0100)]
[S390] ptrace: no extern declarations for userspace
/include/asm/ptrace.h:275: extern's make no sense in userspace
/include/asm/ptrace.h:279: extern's make no sense in userspace
/include/asm/ptrace.h:280: extern's make no sense in userspace
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
projects / linux-2.6-omap-h63xx.git / log