26 Jan, 2008
40 commits
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Add support for STN LCD displays on Atmel AT91SAM9261-based boards.
Patch from Nicolas Ferre.
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
On the at92sam9263ek board, tell the MACB driver the IRQ used
by its PHY. This patch is taken from Andrew Victor's 2.6.23-at91
patchset; it matches board schematics. (But it's currently a NOP
since the MACB driver doesn't yet use PHY irqs.)Signed-off-by: David Brownell
Signed-off-by: Russell King -
This makes HZ configurable on AT91, following the model used on OMAP.
It defaults to a power of two on AT91rm9200 chips, avoiding rounding
errors which come from dividing a 32 KiHz clock to generate scheduler
irqs; and uses 100 on AT91sam926x chips, using MCK/16 (multi-MHZ).Signed-off-by: David Brownell
Acked-by: Remy Bhmer
Acked-by: Andrew Victor
Signed-off-by: Russell King -
Save N instructions on every interrupt processing (where N is the
number of interrupts processed in any one IRQ exception).Signed-off-by: Marc Pignat
Acked-by: Andrew Victor
Signed-off-by: Russell King -
Add definitions of registers / bits found on some AT91SAM9 processors
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
Slight tweaking of the default interrupt priorities (AIC) for the
integrated peripherals on the AT91RM9200, AT91SAM9260, AT91SAM9261 and
AT91SAM9263 processors.Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
AT91RM9200 needlessly verifies machine-type numbers of
supported / known platforms and overwrites it for unknown
ones. Remove it.Signed-off-by: Guennadi Liakhovetski
Signed-off-by: Russell King -
Add STN LCD support on the Atmel AT91SAM9261-EK board.
Uses a black and white screen from Hitachi: SP06Q002.Signed-off-by: Nicolas Ferre
Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
This patch adds a debug interface (if CONFIG_DEBUG_FS is selected) to
display the basic configuration and current state of the GPIO pins on
the Atmel AT91 processors.Signed-off-by: Andrew Victor
Signed-off-by: Russell King -
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (200 commits)
[SCSI] usbstorage: use last_sector_bug flag universally
[SCSI] libsas: abstract STP task status into a function
[SCSI] ultrastor: clean up inline asm warnings
[SCSI] aic7xxx: fix firmware build
[SCSI] aacraid: fib context lock for management ioctls
[SCSI] ch: remove forward declarations
[SCSI] ch: fix device minor number management bug
[SCSI] ch: handle class_device_create failure properly
[SCSI] NCR5380: fix section mismatch
[SCSI] sg: fix /proc/scsi/sg/devices when no SCSI devices
[SCSI] IB/iSER: add logical unit reset support
[SCSI] don't use __GFP_DMA for sense buffers if not required
[SCSI] use dynamically allocated sense buffer
[SCSI] scsi.h: add macro for enclosure bit of inquiry data
[SCSI] sd: add fix for devices with last sector access problems
[SCSI] fix pcmcia compile problem
[SCSI] aacraid: add Voodoo Lite class of cards.
[SCSI] aacraid: add new driver features flags
[SCSI] qla2xxx: Update version number to 8.02.00-k7.
[SCSI] qla2xxx: Issue correct MBC_INITIALIZE_FIRMWARE command.
... -
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
[CRYPTO] hifn795x: Disallow built-in hifn795x when HW_RANDOM is m -
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: (31 commits)
ocfs2: clean up bh null checks
ocfs2: document access rules for blocked_lock_list
configfs: file.c fix possible recursive locking
configfs: dir.c fix possible recursive locking
configfs: Remove EXPERIMENTAL
ocfs2: bump version number
ocfs2/dlm: Clear joining_node on hearbeat node down
ocfs2: convert byte order of constant instead of variable
ocfs2: Update default cluster timeouts
ocfs2: printf fixes
ocfs2: Use generic_file_llseek
ocfs2: Safer read_inline_data()
ocfs2: Silence false lockdep warnings
[PATCH 2/2] ocfs2: cluster aware flock()
[PATCH 1/2] ocfs2: add flock lock type
ocfs2: Local alloc window size changeable via mount option
ocfs2: Support commit= mount option
ocfs2: Add missing permission checks
[PATCH 2/2] ocfs2: Implement group add for online resize
[PATCH 1/2] ocfs2: Add group extend for online resize
... -
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (67 commits)
fix drivers/ata/sata_fsl.c double-decl
[libata] Prefer SCSI_SENSE_BUFFERSIZE to sizeof()
pata_legacy: Merge winbond support
ata_generic: Cenatek support
pata_winbond: error return
pata_serverworks: Fix cable types and cosmetics
pata_mpc52xx: remove un-needed assignment
libata: fix off-by-one in error categorization
ahci: factor out AHCI enabling and enable AHCI before reading CAP
ata_piix: implement SIDPR SCR access
ata_piix: convert to prepare - activate initialization
libata: factor out ata_pci_activate_sff_host() from ata_pci_one()
[libata] Prefer SCSI_SENSE_BUFFERSIZE to sizeof()
pata_legacy: resychronize with upstream changes and resubmit
[libata] pata_legacy: typo fix
[libata] pata_winbond: update for new ->data_xfer hook
pata_pcmcia: convert to new data_xfer prototype
libata annotations and fixes
libata: use dev_driver_string() instead of "libata" in libata-sff.c
ata_piix: kill unused constants and flags
... -
If we know a buffer_head is non-null, then brelse() is unnecessary and
put_bh() can be used instead. Also, an explicit check for NULL is
unnecessary when using brelse(). This patch only covers buffer_head_io.c and
resize.c, which have recently added code which exhibits this problem.Signed-off-by: Mark Fasheh
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ocfs2_super->blocked_lock_list and ocfs2_super->blocked_lock_count have some
usage restrictions which aren't immediately obvious to anyone reading the
code. It's a good idea to document this so that we avoid making costly
mistakes in the future.Signed-off-by: Mark Fasheh
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configfs_register_subsystem() with default_groups triggers recursive locking.
it seems that mutex_lock_nested is needed.=============================================
[ INFO: possible recursive locking detected ]
2.6.24-rc6 #145
---------------------------------------------
swapper/1 is trying to acquire lock:
(&sb->s_type->i_mutex_key#3){--..}, at: [] configfs_add_file+0x2e/0x70but task is already holding lock:
(&sb->s_type->i_mutex_key#3){--..}, at: [] configfs_register_subsystem+0x55/0x130other info that might help us debug this:
1 lock held by swapper/1:
#0: (&sb->s_type->i_mutex_key#3){--..}, at: [] configfs_register_subsystem+0x55/0x130stack backtrace:
Pid: 1, comm: swapper Not tainted 2.6.24-rc6 #145
[] show_trace_log_lvl+0x1a/0x30
[] show_trace+0x12/0x20
[] dump_stack+0x6e/0x80
[] __lock_acquire+0xe62/0x1120
[] lock_acquire+0x82/0xa0
[] mutex_lock_nested+0x98/0x2e0
[] configfs_add_file+0x2e/0x70
[] configfs_create_file+0x2c/0x40
[] configfs_attach_item+0x139/0x220
[] configfs_attach_group+0x14/0x140
[] configfs_attach_group+0xc9/0x140
[] configfs_register_subsystem+0xc6/0x130
[] init_netconsole+0x2b6/0x300
[] kernel_init+0x142/0x320
[] kernel_thread_helper+0x7/0x14
=======================Signed-off-by: Joonwoo Park
Signed-off-by: Joel Becker
Signed-off-by: Mark Fasheh -
configfs_register_subsystem() with default_groups triggers recursive locking.
it seems that mutex_lock_nested is needed.=============================================
[ INFO: possible recursive locking detected ]
2.6.24-rc6 #141
---------------------------------------------
swapper/1 is trying to acquire lock:
(&sb->s_type->i_mutex_key#3){--..}, at: [] configfs_attach_group+0x4f/0x190but task is already holding lock:
(&sb->s_type->i_mutex_key#3){--..}, at: [] configfs_register_subsystem+0x55/0x130other info that might help us debug this:
1 lock held by swapper/1:
#0: (&sb->s_type->i_mutex_key#3){--..}, at: [] configfs_register_subsystem+0x55/0x130stack backtrace:
Pid: 1, comm: swapper Not tainted 2.6.24-rc6 #141
[] show_trace_log_lvl+0x1a/0x30
[] show_trace+0x12/0x20
[] dump_stack+0x6e/0x80
[] __lock_acquire+0xe62/0x1120
[] lock_acquire+0x82/0xa0
[] mutex_lock_nested+0x98/0x2e0
[] configfs_attach_group+0x4f/0x190
[] configfs_register_subsystem+0xc6/0x130
[] init_netconsole+0x2b6/0x300
[] kernel_init+0x142/0x320
[] kernel_thread_helper+0x7/0x14
=======================Signed-off-by: Joonwoo Park
Signed-off-by: Joel Becker
Signed-off-by: Mark Fasheh -
configfs has been alive and kicking for a while now. It underpins some
non-EXPERIMENTAL subsystems, such as OCFS2's cluster stack.Signed-off-by: Joel Becker
Signed-off-by: Mark Fasheh -
Bump the printed version to 1.5.0. This helps us quickly identify which
version of Ocfs2 a bug filer is running.Signed-off-by: Mark Fasheh
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Currently the process of dlm join contains 2 steps: query join and assert join.
After query join, the joined node will set its joining_node. So if the joining
node happens to panic before the 2nd step, the joined node will fail to clear
its joining_node flag because that node isn't in the domain map. It at least
cause 2 problems.
1. All the new join request will fail. So no new node can mount the volume.
2. The joined node can't umount the volume since during the umount process it
has to wait for the joining_node to be unknown. So the umount will be hanged.The solution is to clear the joining_node before we check the domain map.
Signed-off-by: Tao Ma
Signed-off-by: Mark Fasheh -
Convert byte order of constant instead of variable it will be done at
compile time vs run time. Remove unused le32_and_cpu.Signed-off-by: Marcin Slusarz
Signed-off-by: Mark Fasheh -
Lots of people are having trouble with the default timeouts, which are too
low. These new values are derived from an informal survey taken on
ocfs2-users, as well as data from bug reports. This should reduce the amount
of cluster disconnects and subsequent fencing seen during normal workloads.Signed-off-by: Sunil Mushran
Signed-off-by: Mark Fasheh -
Explicitely convert loff_t to long long in printf. Just for sure...
Signed-off-by: Jan Kara
Signed-off-by: Mark Fasheh -
We should use generic_file_llseek() and not default_llseek() so that
s_maxbytes gets properly checked when seeking.Signed-off-by: Jan Kara
Signed-off-by: Mark Fasheh -
In ocfs2_read_inline_data() we should store file size in loff_t. Although
the file size should fit in 32 bits we cannot be sure in case filesystem is
corrupted.Signed-off-by: Jan Kara
Signed-off-by: Mark Fasheh -
Create separate lockdep lock classes for system file's i_mutexes. They are
used to guard allocations and similar things and thus rank differently
than i_mutex of a regular file or directory.Signed-off-by: Jan Kara
Signed-off-by: Mark Fasheh -
Hook up ocfs2_flock(), using the new flock lock type in dlmglue.c. A new
mount option, "localflocks" is added so that users can revert to old
functionality as need be.Signed-off-by: Mark Fasheh
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This adds a new dlmglue lock type which is intended to back flock()
requests.Since these locks are driven from userspace, usage rules are much more
liberal than the typical Ocfs2 internal cluster lock. As a result, we can't
make use of most dlmglue features - lock caching and lock level
optimizations in particular. Additionally, userspace is free to deadlock
itself, so we have to deal with that in the same way as the rest of the
kernel - by allowing a signal to abort a lock request.In order to keep ocfs2_cluster_lock() complexity down, ocfs2_file_lock()
does it's own dlm coordination. We still use the same helper functions
though, so duplicated code is kept to a minimum.Signed-off-by: Mark Fasheh
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Local alloc is a performance optimization in ocfs2 in which a node
takes a window of bits from the global bitmap and then uses that for
all small local allocations. This window size is fixed to 8MB currently.
This patch allows users to specify the window size in MB including
disabling it by passing in 0. If the number specified is too large,
the fs will use the default value of 8MB.mount -o localalloc=X /dev/sdX /mntpoint
Signed-off-by: Sunil Mushran
Signed-off-by: Mark Fasheh -
Mostly taken from ext3. This allows the user to set the jbd commit interval,
in seconds. The default of 5 seconds stays the same, but now users can
easily increase the commit interval. Typically, this would be increased in
order to benefit performance at the expense of data-safety.Signed-off-by: Mark Fasheh
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Check that an online resize is being driven by a user with permission to
change system resource limits.Signed-off-by: Mark Fasheh
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This patch adds the ability for a userspace program to request that a
properly formatted cluster group be added to the main allocation bitmap for
an Ocfs2 file system. The request is made via an ioctl, OCFS2_IOC_GROUP_ADD.
On a high level, this is similar to ext3, but we use a different ioctl as
the structure which has to be passed through is different.During an online resize, tunefs.ocfs2 will format any new cluster groups
which must be added to complete the resize, and call OCFS2_IOC_GROUP_ADD on
each one. Kernel verifies that the core cluster group information is valid
and then does the work of linking it into the global allocation bitmap.Signed-off-by: Tao Ma
Signed-off-by: Mark Fasheh -
This patch adds the ability for a userspace program to request an extend of
last cluster group on an Ocfs2 file system. The request is made via ioctl,
OCFS2_IOC_GROUP_EXTEND. This is derived from EXT3_IOC_GROUP_EXTEND, but is
obviously Ocfs2 specific.tunefs.ocfs2 would call this for an online-resize operation if the last
cluster group isn't full.Signed-off-by: Tao Ma
Signed-off-by: Mark Fasheh -
This patch sets the last_sector_bug flag to 1 for all USB disks. This is
needed to makes the cardreader on various HP multifunction printers work.Since the performance impact is negible we set this flag for all USB disks to
avoid an unusual_devs.h nightmare.Signed-off-by: Hans de Goede
Acked-by: Matthew Dharm
Signed-off-by: James Bottomley -
We need to reserve at least two ioctls for online-resize. Reserve a small
range of ioctls for Ocfs2 use in Documentation/ioctl-number.txt. This should
give us enough room for future growth.Signed-off-by: Tao Ma
Signed-off-by: Mark Fasheh -
This value is initialized from global_bitmap->id2.i_chain.cl_cpg. If there
is only 1 group, it will be equal to the total clusters in the volume. So
as for online resize, it should change for all the nodes in the cluster.
It isn't easy and there is no corresponding lock for it.bitmap_cpg is only used in 2 areas:
1. Check whether the suballoc is too large for us to allocate from the global
bitmap, so it is little used. And now the suballoc size is 2048, it rarely
meet this situation and the check is almost useless.
2. Calculate which group a cluster belongs to. We use it during truncate to
figure out which cluster group an extent belongs too. But we should be OK
if we increase it though as the cluster group calculated shouldn't change
and we only ever have a small bitmap_cpg on file systems with a single
cluster group.Signed-off-by: Tao Ma
Signed-off-by: Mark Fasheh -
Currently it is possible to select HW_RANDOM as a module and have
hifn795x built-in. This causes a build problem because hifn795x
will then call hwrng_register which isn't built-in.This patch introduces a new config option to control the hifn795x
RNG which lets us avoid this problem.Signed-off-by: Herbert Xu
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Remove 'readpages' from the list in ocfs2.txt. Instead of having two
identical lists, I just removed the list in the OCFS2 section of fs/Kconfig
and added a pointer to Documentation/filesystems/ocfs2.txt.Signed-off-by: Mark Fasheh
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Add ->readpages support to Ocfs2. This is rather trivial - all it required
is a small update to ocfs2_get_block (for mapping full extents via b_size)
and an ocfs2_readpages() function which partially mirrors ocfs2_readpage().Signed-off-by: Mark Fasheh
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This allows others to use the DLM constants without being tied to the
function API of fs/dlm.Signed-off-by: Joel Becker
Signed-off-by: Steven Whitehouse
Signed-off-by: David Teigland
Signed-off-by: Mark Fasheh
