Mark Brown [Thu, 16 Dec 2010 15:49:37 +0000 (15:49 +0000)]
regulator: Optimise out noop voltage changes
If a consumer sets the same voltage range as is currently configured
for that consumer there's no need to run through setting the voltage
again. This pattern may occur with some CPUfreq implementations where
the same voltage range is used for multiple frequencies.
Reported-by: Saravana Kannan <skannan@codeaurora.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Thu, 16 Dec 2010 15:49:36 +0000 (15:49 +0000)]
regulator: Add API to re-apply voltage to hardware
When cooperating with an external control source the regulator setup
may be changed underneath the API. Currently consumers can just redo
the regulator_set_voltage() to restore a previously set configuration
but provide an explicit API for doing this as optimsations in the
regulator_set_voltage() implementation will shortly prevent that.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Thu, 16 Dec 2010 13:59:10 +0000 (13:59 +0000)]
regulator: Only notify voltage changes when they succeed
Currently we notify a voltage change whenever we exit set_voltage(),
even if the change failed for some reason (eg, a constraints issue).
This shouldn't cause any substantial ill effects but is wasteful as
listeners get notified on noops. Fix this by moving the notification
into _do_set_voltage() and only notifying if we don't return an error.
Reported-by: Saravana Kannan <skannan@codeaurora.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Sun, 12 Dec 2010 14:36:17 +0000 (14:36 +0000)]
regulator: Provide a selector based set_voltage_sel() operation
Many regulator drivers implement voltage setting by looping through a
table of possible values, normally because the set of available voltages
can't be mapped onto selectors with simple calcuation. Factor out these
loops by providing a variant of set_voltage() which takes a selector rather
than a voltage range as an argument and implementing a loop through the
available selectors in the core.
This is not going to be suitable for use with all devices as when the
regulator voltage can be mapped onto selector values with a simple
calculation the linear scan through the available values will be more
expensive than just doing the calculation, especially for regulators
that provide fine grained voltage control.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Wed, 15 Dec 2010 14:10:25 +0000 (14:10 +0000)]
regulator: Allow modular build of mc13xxx-core
Since the MFD core for this device and the regulator drivers for these
devices can be built modular we should also support modular build of
the shared code for the regulator drivers, otherwise we try to link
built in code against modular code with unfortunate results.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Bengt Jonsson [Fri, 10 Dec 2010 10:08:48 +0000 (11:08 +0100)]
mach-ux500: Updated and connected ab8500 regulator board configuration
The ab8500 regulator board configuration is updated and put in an
array which can easily be used in the MFD board configuration. The
regulator board configuration is also added to the MFD
configuration in this patch.
Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Bengt Jonsson [Fri, 10 Dec 2010 10:08:44 +0000 (11:08 +0100)]
regulators: Updated ab8500 variable names, macro names and comments
The regulator enumeration is used for putting the regulator data
in correct place in the info array. This should be matched in the
board configuration.
Variable names are updated to be more consistent, comments are
corrected and macros have been edited to be consistent.
Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Bengt Jonsson [Fri, 10 Dec 2010 10:08:42 +0000 (11:08 +0100)]
regulators: Clean out unused code in ab8500 regulators
The find_regulator function was unused so it has been removed. The
ab8500 pointer in the regulator info structure was unused and so it
has also been removed.
Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Bengt Jonsson [Fri, 10 Dec 2010 10:08:41 +0000 (11:08 +0100)]
regulators: Fixed errors in ab8500 register mapping
For INTCORE and TVOUT regulators, the low power register bit is
included in the mask so that enable will set the regulator in
normal (high power) mode.
ANAMIC1, ANAMIC2, DMIC regulator settings are swapped with each
other so that the correct regulator gets enabled/disabled.
ANA regulator register address is corrected.
Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Bengt Jonsson [Fri, 10 Dec 2010 10:08:40 +0000 (11:08 +0100)]
regulators: Moved define for number of regulators in ab8500
The define for number of regulators is moved from ab8500-core to
ab8500-regulator so that the regulator driver can be updated
independently of ab8500-core. This also changes the platform
configuration structure of ab8500-core so that it contains a
pointer to the regulator_init_data array plus number of
regulators instead of an fixed size array of pointers to
regulator_init_data.
Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Fri, 10 Dec 2010 17:28:07 +0000 (17:28 +0000)]
regulator: Allow drivers to report voltages as selectors
Since drivers already have to provide an API for translating selectors
into voltages they may as well just report the selector values directly
to the core API rather than implement the lookup themselves. The old
interface is left in place for now, but may be removed in future.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Fri, 10 Dec 2010 17:28:06 +0000 (17:28 +0000)]
regulator: Use _regulator_get_voltage() consistently
Rather than referencing the get_voltage() operation directly in the
ops struct use the internal _regulator_get_voltage() API call to do
so, facilitating refactoring.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Joe Perches [Mon, 6 Dec 2010 22:05:19 +0000 (14:05 -0800)]
drivers/regulator: Update WARN uses
Align arguments.
Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
regulator: Take into account the requirements of all consumers
Extend the regulator_set_voltage() function to take into account the
voltage requirements of all consumers of the regulator being changed,
in order to set the voltage to the minimum voltage acceptable to all
consumers. The existing behaviour was that the latest
regulator_set_voltage() call would win over previous
regulator_set_voltage() calls even if setting the voltage to a
non-acceptable level from other consumers.
Signed-off-by: Thomas Petazzoni <t-petazzoni@ti.com> Cc: Liam Girdwood <lrg@slimlogic.co.uk> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Joe Perches [Tue, 30 Nov 2010 13:53:48 +0000 (05:53 -0800)]
regulator: Add and use rdev_<level> macros
On Tue, 2010-11-30 at 10:52 +0000, Mark Brown wrote:
> On Mon, Nov 29, 2010 at 05:12:56PM -0800, Joe Perches wrote:
> > Just to please broonie...
> > Signed-off-by: Joe Perches <joe@perches.com>
> As usual when fixing review issues please revise your original patch
> rather than posting a fresh patch.
Here's an earlier comment:
On Thu, 2010-11-18 at 13:30 +0000, Mark Brown wrote:
> This looks reasonable, please rebase on top of Daniel's patches and
> submit it properly (with changelog and so on).
Sometimes it's simpler for an upstream maintainer to do
something like:
Mark Brown [Mon, 29 Nov 2010 15:55:17 +0000 (15:55 +0000)]
regulator: Copy constraints from regulators when initialising them
Currently the regulator API uses the constraints structure passed in to
the core throughout the lifetime of the object. This means that it is not
possible to mark the constraints as __initdata so if the kernel supports
many boards the constraints for all of them are kept around throughout the
lifetime of the system, consuming memory needlessly. By copying constraints
that are actually used we allow the use of __initdata, saving memory when
multiple boards are supported.
This also means the constraints can be const.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Mon, 22 Nov 2010 13:51:19 +0000 (13:51 +0000)]
regulator: Remove regulator core version announcement
The version hasn't been updated since the regulator API was merged in
2.6.27 so just remove it - now we're in mainline the kernel version is
much more useful.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Mon, 22 Nov 2010 13:51:18 +0000 (13:51 +0000)]
regulator: Fix obfuscated log messages
Don't use %s to format fixed static strings into log messages, it just
makes searching for and reading the message in the kernel source
needlessly hard.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Daniel Walker [Wed, 17 Nov 2010 23:30:28 +0000 (15:30 -0800)]
drivers: regulator: core: convert to using pr_ macros
The regulator framework uses a lot of printks with a
specific formatting using __func__. This converts them
to use pr_ calls with a central format string.
Cc: bleong@codeaurora.org Signed-off-by: Daniel Walker <dwalker@codeaurora.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Daniel Walker [Wed, 17 Nov 2010 23:30:27 +0000 (15:30 -0800)]
drivers: regulator: core: use pr_fmt
This adds a pr_fmt line which uses the __func__ macro. I also
convert the current pr_ lines to remove their __func__ usage.
Cc: bleong@codeaurora.org Signed-off-by: Daniel Walker <dwalker@codeaurora.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Bengt Jonsson [Wed, 10 Nov 2010 10:06:22 +0000 (11:06 +0100)]
regulator: enable supply regulator only when use count is zero
Supply regulators are disabled only when the last
reference count is removed on the child regulator
(the use count goes from 1 to 0). This patch changes
the behaviour of enable so the supply regulator is
enabled only when the use count of the child
regulator goes from 0 to 1.
Signed-off-by: Bengt Jonsson <bengt.g.jonsson@stericsson.com> Acked-by: Linus Walleij <linus.walleij@stericsson.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Wed, 10 Nov 2010 14:38:30 +0000 (14:38 +0000)]
regulator: Add basic trace facilities
Provide some basic trace facilities to the regulator API. We generate
events on regulator enable, disable and voltage setting over the actual
hardware operations (which are assumed to be the expensive ones which
require interaction with the actual device). This is intended to facilitate
debug of the performance and behaviour with consumers allowing unified
traces to be generated including the regulator operations within the
context of the other components of the system.
For enable we log the explicit delay for the voltage ramp separately to
the interaction with the hardware to highlight the time consumed in I/O.
We should add a similar delay for voltage changes, though there the
relatively small magnitude of the changes in the context of the I/O
costs makes it much less critical for most regulators.
Only hardware interactions are currently traced as the primary focus is
on the performance and synchronisation of actual hardware interactions.
Additional tracepoints for debugging of the logical operations can be
added later if required.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Mark Brown [Wed, 10 Nov 2010 14:38:29 +0000 (14:38 +0000)]
regulator: Report actual configured voltage to set_voltage()
Change the interface used by set_voltage() to report the selected value
to the regulator core in terms of a selector used by list_voltage().
This allows the regulator core to know the voltage that was chosen
without having to do an explict get_voltage(), which would be much more
expensive as it will generally access hardware.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (67 commits)
cxgb4vf: recover from failure in cxgb4vf_open()
netfilter: ebtables: make broute table work again
netfilter: fix race in conntrack between dump_table and destroy
ah: reload pointers to skb data after calling skb_cow_data()
ah: update maximum truncated ICV length
xfrm: check trunc_len in XFRMA_ALG_AUTH_TRUNC
ehea: Increase the skb array usage
net/fec: remove config FEC2 as it's used nowhere
pcnet_cs: add new_id
tcp: disallow bind() to reuse addr/port
net/r8169: Update the function of parsing firmware
net: ppp: use {get,put}_unaligned_be{16,32}
CAIF: Fix IPv6 support in receive path for GPRS/3G
arp: allow to invalidate specific ARP entries
net_sched: factorize qdisc stats handling
mlx4: Call alloc_etherdev to allocate RX and TX queues
net: Add alloc_netdev_mqs function
caif: don't set connection request param size before copying data
cxgb4vf: fix mailbox data/control coherency domain race
qlcnic: change module parameter permissions
...
Linus Torvalds [Wed, 12 Jan 2011 00:31:41 +0000 (16:31 -0800)]
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (72 commits)
powerpc/pseries: Fix build of topology stuff without CONFIG_NUMA
powerpc/pseries: Fix VPHN build errors on non-SMP systems
powerpc/83xx: add mpc8308_p1m DMA controller device-tree node
powerpc/83xx: add DMA controller to mpc8308 device-tree node
powerpc/512x: try to free dma descriptors in case of allocation failure
powerpc/512x: add MPC8308 dma support
powerpc/512x: fix the hanged dma transfer issue
powerpc/512x: scatter/gather dma fix
powerpc/powermac: Make auto-loading of therm_pm72 possible
of/address: Use propper endianess in get_flags
powerpc/pci: Use printf extension %pR for struct resource
powerpc: Remove unnecessary casts of void ptr
powerpc: Disable VPHN polling during a suspend operation
powerpc/pseries: Poll VPA for topology changes and update NUMA maps
powerpc: iommu: Add device name to iommu error printks
powerpc: Record vma->phys_addr in ioremap()
powerpc: Update compat_arch_ptrace
powerpc: Fix PPC_PTRACE_SETHWDEBUG on PPC_BOOK3S
powerpc/time: printk time stamp init not correct
powerpc: Minor cleanups for machdep.h
...
Linus Torvalds [Wed, 12 Jan 2011 00:30:08 +0000 (16:30 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (42 commits)
IB/qib: Fix refcount leak in lkey/rkey validation
IB/qib: Improve SERDES tunning on QMH boards
IB/qib: Unnecessary delayed completions on RC connection
IB/qib: Issue pre-emptive NAKs on eager buffer overflow
IB/qib: RDMA lkey/rkey validation is inefficient for large MRs
IB/qib: Change QPN increment
IB/qib: Add fix missing from earlier patch
IB/qib: Change receive queue/QPN selection
IB/qib: Fix interrupt mitigation
IB/qib: Avoid duplicate writes to the rcv head register
IB/qib: Add a few new SERDES tunings
IB/qib: Reset packet list after freeing
IB/qib: New SERDES init routine and improvements to SI quality
IB/qib: Clear WAIT_SEND flags when setting QP to error state
IB/qib: Fix context allocation with multiple HCAs
IB/qib: Fix multi-Florida HCA host panic on reboot
IB/qib: Handle transitions from ACTIVE_DEFERRED to ACTIVE better
IB/qib: UD send with immediate receive completion has wrong size
IB/qib: Set port physical state even if other fields are invalid
IB/qib: Generate completion callback on errors
...
Linus Torvalds [Tue, 11 Jan 2011 23:11:56 +0000 (15:11 -0800)]
Merge branch 'nfs-for-2.6.38' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'nfs-for-2.6.38' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (89 commits)
NFS fix the setting of exchange id flag
NFS: Don't use vm_map_ram() in readdir
NFSv4: Ensure continued open and lockowner name uniqueness
NFS: Move cl_delegations to the nfs_server struct
NFS: Introduce nfs_detach_delegations()
NFS: Move cl_state_owners and related fields to the nfs_server struct
NFS: Allow walking nfs_client.cl_superblocks list outside client.c
pnfs: layout roc code
pnfs: update nfs4_callback_recallany to handle layouts
pnfs: add CB_LAYOUTRECALL handling
pnfs: CB_LAYOUTRECALL xdr code
pnfs: change lo refcounting to atomic_t
pnfs: check that partial LAYOUTGET return is ignored
pnfs: add layout to client list before sending rpc
pnfs: serialize LAYOUTGET(openstateid)
pnfs: layoutget rpc code cleanup
pnfs: change how lsegs are removed from layout list
pnfs: change layout state seqlock to a spinlock
pnfs: add prefix to struct pnfs_layout_hdr fields
pnfs: add prefix to struct pnfs_layout_segment fields
...
netfilter: fix race in conntrack between dump_table and destroy
The netlink interface to dump the connection tracking table has a race
when entries are deleted at the same time. A customer reported a crash
and the backtrace showed thatctnetlink_dump_table was running while a
conntrack entry was being destroyed.
(see https://bugzilla.vyatta.com/show_bug.cgi?id=6402).
According to RCU documentation, when using hlist_nulls the reader
must handle the case of seeing a deleted entry and not proceed
further down the linked list. The old code would continue
which caused the scan to walk into the free list.
This patch uses locking (rather than RCU) for this operation which
is guaranteed safe, and no longer requires getting reference while
doing dump operation.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Linus Torvalds [Tue, 11 Jan 2011 22:45:52 +0000 (14:45 -0800)]
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6:
UDF: Close small mem leak in udf_find_entry()
udf: Fix directory corruption after extent merging
udf: Protect udf_file_aio_write from possible races
udf: Remove unnecessary bkl usages
udf: Use of s_alloc_mutex to serialize udf_relocate_blocks() execution
udf: Replace bkl with the UDF_I(inode)->i_data_sem for protect udf_inode_info struct
udf: Remove BKL from free space counting functions
udf: Call udf_add_free_space() for more blocks at once in udf_free_blocks()
udf: Remove BKL from udf_put_super() and udf_remount_fs()
udf: Protect default inode credentials by rwlock
udf: Protect all modifications of LVID with s_alloc_mutex
udf: Move handling of uniqueID into a helper function and protect it by a s_alloc_mutex
udf: Remove BKL from udf_update_inode
udf: Convert UDF_SB(sb)->s_flags to use bitops
fs/udf: Add printf format/argument verification
fs/udf: Use vzalloc
(Evil merge: this also removes the BKL dependency from the Kconfig file)
Linus Torvalds [Tue, 11 Jan 2011 22:37:31 +0000 (14:37 -0800)]
Merge branch 'for_linus' of 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: (44 commits)
ext4: fix trimming starting with block 0 with small blocksize
ext4: revert buggy trim overflow patch
ext4: don't pass entire map to check_eofblocks_fl
ext4: fix memory leak in ext4_free_branches
ext4: remove ext4_mb_return_to_preallocation()
ext4: flush the i_completed_io_list during ext4_truncate
ext4: add error checking to calls to ext4_handle_dirty_metadata()
ext4: fix trimming of a single group
ext4: fix uninitialized variable in ext4_register_li_request
ext4: dynamically allocate the jbd2_inode in ext4_inode_info as necessary
ext4: drop i_state_flags on architectures with 64-bit longs
ext4: reorder ext4_inode_info structure elements to remove unneeded padding
ext4: drop ec_type from the ext4_ext_cache structure
ext4: use ext4_lblk_t instead of sector_t for logical blocks
ext4: replace i_delalloc_reserved_flag with EXT4_STATE_DELALLOC_RESERVED
ext4: fix 32bit overflow in ext4_ext_find_goal()
ext4: add more error checks to ext4_mkdir()
ext4: ext4_ext_migrate should use NULL not 0
ext4: Use ext4_error_file() to print the pathname to the corrupted inode
ext4: use IS_ERR() to check for errors in ext4_error_file
...
Linus Torvalds [Tue, 11 Jan 2011 22:36:55 +0000 (14:36 -0800)]
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
ext2: Resolve 'dereferencing pointer to incomplete type' when enabling EXT2_XATTR_DEBUG
ext3: Remove redundant unlikely()
ext2: Remove redundant unlikely()
ext3: speed up file creates by optimizing rec_len functions
ext2: speed up file creates by optimizing rec_len functions
ext3: Add more journal error check
ext3: Add journal error check in resize.c
quota: Use %pV and __attribute__((format (printf in __quota_error and fix fallout
ext3: Add FITRIM handling
ext3: Add batched discard support for ext3
ext3: Add journal error check into ext3_rename()
ext3: Use search_dirblock() in ext3_dx_find_entry()
ext3: Avoid uninitialized memory references with a corrupted htree directory
ext3: Return error code from generic_check_addressable
ext3: Add journal error check into ext3_delete_entry()
ext3: Add error check in ext3_mkdir()
fs/ext3/super.c: Use printf extension %pV
fs/ext2/super.c: Use printf extension %pV
ext3: don't update sb journal_devnum when RO dev
Linus Torvalds [Tue, 11 Jan 2011 22:36:08 +0000 (14:36 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
fs/9p: Don't set dentry->d_op in create routines
fs/9p: fix spelling typo
fs/9p: TREADLINK bugfix
net/9p: Use proper data types
fs/9p: Simplify the .L create operation
fs/9p: Move dotl inode operations into a seperate file
fs/9p: fix menu presentation
fs/9p: Fix the return error on default acl removal
fs/9p: Remove unnecessary semicolons
Dang Hongwu [Tue, 11 Jan 2011 07:13:33 +0000 (07:13 +0000)]
ah: reload pointers to skb data after calling skb_cow_data()
skb_cow_data() may allocate a new data buffer, so pointers on
skb should be set after this function.
Bug was introduced by commit dff3bb06 ("ah4: convert to ahash")
and 8631e9bd ("ah6: convert to ahash").
Signed-off-by: Wang Xuefu <xuefu.wang@6wind.com> Acked-by: Krzysztof Witek <krzysztof.witek@6wind.com> Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Nicolas Dichtel [Tue, 11 Jan 2011 08:04:12 +0000 (08:04 +0000)]
xfrm: check trunc_len in XFRMA_ALG_AUTH_TRUNC
Maximum trunc length is defined by MAX_AH_AUTH_LEN (in bytes)
and need to be checked when this value is set (in bits) by
the user. In ah4.c and ah6.c a BUG_ON() checks this condiftion.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Tue, 11 Jan 2011 01:14:22 +0000 (01:14 +0000)]
tcp: disallow bind() to reuse addr/port
inet_csk_bind_conflict() logic currently disallows a bind() if
it finds a friend socket (a socket bound on same address/port)
satisfying a set of conditions :
1) Current (to be bound) socket doesnt have sk_reuse set
OR
2) other socket doesnt have sk_reuse set
OR
3) other socket is in LISTEN state
We should add the CLOSE state in the 3) condition, in order to avoid two
REUSEADDR sockets in CLOSE state with same local address/port, since
this can deny further operations.
Note : a prior patch tried to address the problem in a different (and
buggy) way. (commit fda48a0d7a8412ced tcp: bind() fix when many ports
are bound).
Reported-by: Gaspar Chilingarov <gasparch@gmail.com> Reported-by: Daniel Baluta <daniel.baluta@gmail.com> Tested-by: Daniel Baluta <daniel.baluta@gmail.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jan Kara [Tue, 11 Jan 2011 20:16:31 +0000 (15:16 -0500)]
ext4: fix trimming starting with block 0 with small blocksize
When s_first_data_block is not zero (which happens e.g. when block size is 1KB)
and trim ioctl is called to start trimming from block 0, the math in
ext4_get_group_no_and_offset() overflows. The overall result is that ioctl
returns EINVAL which is kind of unexpected and we probably don't want
userspace tools to bother with internal details of filesystem structure.
So just silently increase starting offset (and shorten length) when starting
block is below s_first_data_block.
CC: Lukas Czerner <lczerner@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Linus Torvalds [Tue, 11 Jan 2011 19:42:06 +0000 (11:42 -0800)]
Merge branch 'for-linus-merged' of git://oss.sgi.com/xfs/xfs
* 'for-linus-merged' of git://oss.sgi.com/xfs/xfs: (47 commits)
xfs: convert grant head manipulations to lockless algorithm
xfs: introduce new locks for the log grant ticket wait queues
xfs: convert log grant heads to atomic variables
xfs: convert l_tail_lsn to an atomic variable.
xfs: convert l_last_sync_lsn to an atomic variable
xfs: make AIL tail pushing independent of the grant lock
xfs: use wait queues directly for the log wait queues
xfs: combine grant heads into a single 64 bit integer
xfs: rework log grant space calculations
xfs: fact out common grant head/log tail verification code
xfs: convert log grant ticket queues to list heads
xfs: use AIL bulk delete function to implement single delete
xfs: use AIL bulk update function to implement single updates
xfs: remove all the inodes on a buffer from the AIL in bulk
xfs: consume iodone callback items on buffers as they are processed
xfs: reduce the number of AIL push wakeups
xfs: bulk AIL insertion during transaction commit
xfs: clean up xfs_ail_delete()
xfs: Pull EFI/EFD handling out from under the AIL lock
xfs: fix EFI transaction cancellation.
...
Linus Torvalds [Tue, 11 Jan 2011 19:28:34 +0000 (11:28 -0800)]
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (22 commits)
MAINTAINERS: Update Joel Becker's email address
ocfs2: Remove unused truncate function from alloc.c
ocfs2/cluster: dereferencing before checking in nst_seq_show()
ocfs2: fix build for OCFS2_FS_STATS not enabled
ocfs2/cluster: Show o2net timing statistics
ocfs2/cluster: Track process message timing stats for each socket
ocfs2/cluster: Track send message timing stats for each socket
ocfs2/cluster: Use ktime instead of timeval in struct o2net_sock_container
ocfs2/cluster: Replace timeval with ktime in struct o2net_send_tracking
ocfs2: Add DEBUG_FS dependency
ocfs2/dlm: Hard code the values for enums
ocfs2/dlm: Minor cleanup
ocfs2/dlm: Cleanup dlmdebug.c
ocfs2: Release buffer_head in case of error in ocfs2_double_lock.
ocfs2/cluster: Pin the local node when o2hb thread starts
ocfs2/cluster: Show pin state for each o2hb region
ocfs2/cluster: Pin/unpin o2hb regions
ocfs2/cluster: Remove dropped region from o2hb quorum region bitmap
ocfs2/cluster: Pin the remote node item in configfs
ocfs2/dlm: make existing convertion precedent over new lock
...
Andy Adamson [Tue, 14 Dec 2010 15:11:57 +0000 (10:11 -0500)]
NFS fix the setting of exchange id flag
Indicate support for referrals. Do not set any PNFS roles. Check the flags
returned by the server for validity. Do not use exchange flags from an old
client ID instance when recovering a client ID.
Update the EXCHID4_FLAG_XXX set to RFC 5661.
Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Linus Torvalds [Tue, 11 Jan 2011 19:11:46 +0000 (11:11 -0800)]
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Fix Moorestown VRTC fixmap placement
x86/gpio: Implement x86 gpio_to_irq convert function
x86, UV: Fix APICID shift for Westmere processors
x86: Use PCI method for enabling AMD extended config space before MSR method
x86: tsc: Prevent delayed init if initial tsc calibration failed
x86, lapic-timer: Increase the max_delta to 31 bits
x86: Fix sparse non-ANSI function warnings in smpboot.c
x86, numa: Fix CONFIG_DEBUG_PER_CPU_MAPS without NUMA emulation
x86, AMD, PCI: Add AMD northbridge PCI device id for CPU families 12h and 14h
x86, numa: Fix cpu to node mapping for sparse node ids
x86, numa: Fake node-to-cpumask for NUMA emulation
x86, numa: Fake apicid and pxm mappings for NUMA emulation
x86, numa: Avoid compiling NUMA emulation functions without CONFIG_NUMA_EMU
x86, numa: Reduce minimum fake node size to 32M
Fix up trivial conflict in arch/x86/kernel/apic/x2apic_uv_x.c
Linus Torvalds [Tue, 11 Jan 2011 19:06:41 +0000 (11:06 -0800)]
Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
rtc: Namespace fixup
RTC: Remove UIE emulation
RTC: Rework RTC code to use timerqueue for events
We do set dentry->d_op in lookup even in case of EOENT entries.
That implies we should have dentry->d_op already set when
create/mkdir/mknod/link/symlink routines are called
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
M. Mohan Kumar [Sat, 8 Jan 2011 01:58:46 +0000 (07:28 +0530)]
fs/9p: TREADLINK bugfix
Remove v9fs_vfs_readlink_dotl function and use generic_readlink. Update
v9fs_vfs_follow_link_dotl function to accommodate this change
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Reported-by: Dr. David Alan Gilbert <linux@treblig.org> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
M. Mohan Kumar [Mon, 10 Jan 2011 20:23:53 +0000 (14:23 -0600)]
net/9p: Use proper data types
Use proper data types for storing the count of the binary blob and
length of a string. Without this patch length calculation of string will
always result in -1 because of comparision between signed and unsigned
integer.
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Arjan van de Ven [Tue, 11 Jan 2011 10:55:56 +0000 (10:55 +0000)]
x86: Fix Moorestown VRTC fixmap placement
The x86 fixmaps need to be all together... unfortunately the
VRTC one was misplaced.
This patch makes sure the MRST VRTC fixmap is put prior to the
__end_of_permanent_fixed_addresses marker.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com>
LKML-Reference: <20110111105544.24448.27607.stgit@bob.linux.org.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Alek Du [Tue, 11 Jan 2011 10:55:32 +0000 (10:55 +0000)]
x86/gpio: Implement x86 gpio_to_irq convert function
We need this for x86 MID platforms where GPIO interrupts are
used. No special magic is needed so the default 1:1 behaviour
will do nicely.
Signed-off-by: Alek Du <alek.du@intel.com> Signed-off-by: Jacob Pan <jacob.jun.pan@intel.com> Signed-off-by: Alan Cox <alan@linux.intel.com>
LKML-Reference: <20110111105439.24448.69863.stgit@bob.linux.org.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jack Steiner [Mon, 10 Jan 2011 19:52:11 +0000 (13:52 -0600)]
x86, UV: Fix APICID shift for Westmere processors
Westmere processors use a different algorithm for
assigning APICIDs on SGI UV systems. The location of the
node number within the apicid is now a function of the
processor type.
Signed-off-by: Jack Steiner <steiner@sgi.com>
LKML-Reference: <20110110195210.GA18737@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Jan Beulich [Mon, 10 Jan 2011 16:20:23 +0000 (16:20 +0000)]
x86: Use PCI method for enabling AMD extended config space before MSR method
While both methods should work equivalently well for the native
case, the Xen Dom0 case can't reliably work with the MSR one,
since there's no guarantee that the virtual CPUs it has
available fully cover all necessary physical ones.
As per the suggestion of Robert Richter the patch only adds the
PCI method, but leaves the MSR one as a fallback to cover new
systems the PCI IDs of which may not have got added to the code
base yet.
The only change in v2 is the breaking out of the new CPI
initialization method into a separate function, as requested by
Ingo.
Signed-off-by: Jan Beulich <jbeulich@novell.com> Acked-by: Robert Richter <robert.richter@amd.com> Cc: Andreas Herrmann3 <Andreas.Herrmann3@amd.com> Cc: Joerg Roedel <joerg.roedel@amd.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org>
LKML-Reference: <4D2B3FD7020000780002B67D@vpn.id2.novell.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Thomas Gleixner [Tue, 11 Jan 2011 10:40:48 +0000 (11:40 +0100)]
x86: tsc: Prevent delayed init if initial tsc calibration failed
commit a8760ec (x86: Check tsc available/disabled in the delayed init
function) missed to prevent the setup of the delayed init function in
case the initial tsc calibration failed. This results in the same
divide by zero bug as we have seen without the tsc disabled check.
Skip the delayed work setup when tsc_khz (the initial calibration
value) is 0.
Bisected-and-tested-by: Kirill A. Shutemov <kas@openvz.org> Cc: John Stultz <john.stultz@linaro.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Jesse Larrew [Fri, 17 Dec 2010 22:07:47 +0000 (22:07 +0000)]
powerpc/pseries: Fix VPHN build errors on non-SMP systems
The header asm/hvcall.h was previously included indirectly via
smp.h. On non-SMP systems, however, these declarations are excluded
and the build breaks. This is easily fixed by including asm/hvcall.h
directly.
The VPHN feature is only meaningful on NUMA systems that implement
the SPLPAR option, so exclude the VPHN code on systems without
SPLPAR enabled.
Also, expose unmap_cpu_from_node() on systems with SPLPAR enabled,
even if CONFIG_HOTPLUG_CPU is disabled.
Lastly, map_cpu_to_node() is now needed by VPHN to manipulate the
node masks after boot time, so remove the __cpuinit annotation to
fix a section mismatch.
Alex Elder [Tue, 11 Jan 2011 03:35:55 +0000 (21:35 -0600)]
Merge branch 'master' into for-linus-merged
This merge pulls the XFS master branch into the latest Linus master.
This results in a merge conflict whose best fix is not obvious.
I manually fixed the conflict, in "fs/xfs/xfs_iget.c".
Dave Chinner had done work that resulted in RCU freeing of inodes
separate from what Nick Piggin had done, and their results differed
slightly in xfs_inode_free(). The fix updates Nick's call_rcu()
with the use of VFS_I(), while incorporating needed updates to some
XFS inode fields implemented in Dave's series. Dave's RCU callback
function has also been removed.
Mike Marciniszyn [Tue, 11 Jan 2011 01:42:23 +0000 (17:42 -0800)]
IB/qib: Fix refcount leak in lkey/rkey validation
The mr optimization introduced a reference count leak on an exception
test. The lock/refcount manipulation is moved down and the problematic
exception test now calls bail to insure that the lock is released.
Additional fixes as suggested by Ralph Campbell <ralph.campbell@qlogic.org>:
- reduce lock scope of dma regions
- use explicit values on returns vs. automatic ret value
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Mike Marciniszyn [Tue, 11 Jan 2011 01:42:22 +0000 (17:42 -0800)]
IB/qib: Unnecessary delayed completions on RC connection
Currently on receipt of a response message (ACKs, RDMA Response,
Atomic Responses etc.) if the SDMA completion counter is not advanced
the driver delays the completion of the WQE. In most cases this is
overly pessimistic as the response (ACK) to a previously transmitted
send implies that the send is complete. Ensure that SDMA queue is
progressed appropriately before determining if a send has delayed
completions.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Mike Marciniszyn [Tue, 11 Jan 2011 01:42:22 +0000 (17:42 -0800)]
IB/qib: Issue pre-emptive NAKs on eager buffer overflow
Under congestion resulting in eager buffer overflow attempt to send
pre-emptive NAKs if header queue entries with TID errors are generated
and a valid header is present. This prevents long timeouts and flow
restarts if a trailing set of packets are dropped due to eager
overflows. Pre-emptive NAKs are currently only supported for RDMA
writes.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Mike Marciniszyn [Tue, 11 Jan 2011 01:42:22 +0000 (17:42 -0800)]
IB/qib: RDMA lkey/rkey validation is inefficient for large MRs
The current code loops during rkey/lkey validiation to isolate the MR
for the RDMA, which is expensive when the current operation is inside
a very large memory region.
This fix optimizes rkey/lkey validation routines for user memory
regions and fast memory regions. The MR entry can be isolated by
shifts/mods instead of looping. The existing loop is preserved for
phys memory regions for now.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Mike Marciniszyn [Tue, 11 Jan 2011 01:42:21 +0000 (17:42 -0800)]
IB/qib: Change receive queue/QPN selection
The basic idea is that on SusieQ, the difficult part of mapping QPN to
context is handled by the mapping registers so the generic QPN
allocation doesn't need to worry about chip specifics. For Monty and
Linda, there is no mapping table so the qpt->mask (same as
dd->qpn_mask), is used to see if the QPN to context falls within
[zero..dd->n_krcv_queues).
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Mike Marciniszyn [Tue, 11 Jan 2011 01:42:21 +0000 (17:42 -0800)]
IB/qib: Fix interrupt mitigation
For SusieQ we need to write to the interrupt timer register before
updating the header queue head with interrupt count. This is to
ensure that the timer is enabled properly and a receive available
interrupt is delivered. Otherwise this interrupt can be lost if the
receiver header/eager queues are full before the timer is enabled.
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
projects / mirror_ubuntu-bionic-kernel.git / log