15 Jul, 2007
6 commits
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umounting partitions after heavy activity would sometimes trigger a
segmentation violation. This fix appears to remove that problem.
Fix originally provided by Latchesar Ionkov.Signed-off-by: Eric Van Hensbergen
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During reorganization, the mount time debug option was removed in favor
of module-load-time parameters. However, the mount time option is still
a useful for feature during debug and for user-fault isolation when the
module is compiled into the kernel.Signed-off-by: Eric Van Hensbergen
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This patch expands the impact of the loose cache mode to allow for cached
metadata increasing the performance of directory listings and other metadata
read operations.Signed-off-by: Eric Van Hensbergen
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If trans->write returns 0, p9_write_work goes through the error path, but
sets the error code to zero.This patch sets the error code to EREMOTEIO if trans->write returns zero
value.Signed-off-by: Latchesar Ionkov
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Change module name of net/9p module from 9p.ko to 9pnet.ko. fs/9p module
already uses 9p.ko name.Signed-off-by: Latchesar Ionkov
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This patchset moves non-filesystem interfaces of v9fs from fs/9p to net/9p.
It moves the transport, packet marshalling and connection layers to net/9p
leaving only the VFS related files in fs/9p. This work is being done in
preparation for in-kernel 9p servers as well as alternate 9p clients (other
than VFS).Signed-off-by: Latchesar Ionkov
Signed-off-by: Eric Van Hensbergen
14 Jul, 2007
26 commits
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This reverts commit 9faf65fb6ee2b4e08325ba2d69e5ccf0c46453d0.
It bit people like Michal Piotrowski:
"My system is too secure, I can not login :)"
because it changed how CONFIG_NETLABEL worked, and broke older SElinux
policies.As a result, quoth James Morris:
"Can you please revert this patch?
We thought it only affected people running MLS, but it will affect others.
Sorry for the hassle."
Cc: James Morris
Cc: Stephen Smalley
Cc: Michal Piotrowski
Cc: Paul Moore
Signed-off-by: Linus Torvalds -
* git://git.linux-nfs.org/pub/linux/nfs-2.6: (122 commits)
sunrpc: drop BKL around wrap and unwrap
NFSv4: Make sure unlock is really an unlock when cancelling a lock
NLM: fix source address of callback to client
SUNRPC client: add interface for binding to a local address
SUNRPC server: record the destination address of a request
SUNRPC: cleanup transport creation argument passing
NFSv4: Make the NFS state model work with the nosharedcache mount option
NFS: Error when mounting the same filesystem with different options
NFS: Add the mount option "nosharecache"
NFS: Add support for mounting NFSv4 file systems with string options
NFS: Add final pieces to support in-kernel mount option parsing
NFS: Introduce generic mount client API
NFS: Add enums and match tables for mount option parsing
NFS: Improve debugging output in NFS in-kernel mount client
NFS: Clean up in-kernel NFS mount
NFS: Remake nfsroot_mount as a permanent part of NFS client
SUNRPC: Add a convenient default for the hostname when calling rpc_create()
SUNRPC: Rename rpcb_getport to be consistent with new rpcb_getport_sync name
SUNRPC: Rename rpcb_getport_external routine
SUNRPC: Allow rpcbind requests to be interrupted by a signal.
... -
When nfsd was transitioned to use splice instead of sendfile() for data
transfers, a line setting the page index was lost. Restore it, so that
nfsd is functional when that path is used.Signed-off-by: Jens Axboe
Signed-off-by: Linus Torvalds -
Roman Zippel noticed another inconsistency of the wmult table.
wmult[16] has a missing digit.
Signed-off-by: Thomas Gleixner
Signed-off-by: Linus Torvalds -
* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Fix typos in powernow-k8 printk's.
[CPUFREQ] Restore previously used governor on a hot-replugged CPU
[CPUFREQ] bugfix cpufreq in combination with performance governor
[CPUFREQ] powernow-k8 compile fix.
[CPUFREQ] the overdue removal of X86_SPEEDSTEP_CENTRINO_ACPI
[CPUFREQ] Longhaul - Option to disable ACPI C3 supportFixed up arch/i386/kernel/cpu/cpufreq/powernow-k8.c due to revert that
got fixed differently in the cpufreq branch.Signed-off-by: Linus Torvalds
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* 'ioat-md-accel-for-linus' of git://lost.foo-projects.org/~dwillia2/git/iop: (28 commits)
ioatdma: add the unisys "i/oat" pci vendor/device id
ARM: Add drivers/dma to arch/arm/Kconfig
iop3xx: surface the iop3xx DMA and AAU units to the iop-adma driver
iop13xx: surface the iop13xx adma units to the iop-adma driver
dmaengine: driver for the iop32x, iop33x, and iop13xx raid engines
md: remove raid5 compute_block and compute_parity5
md: handle_stripe5 - request io processing in raid5_run_ops
md: handle_stripe5 - add request/completion logic for async expand ops
md: handle_stripe5 - add request/completion logic for async read ops
md: handle_stripe5 - add request/completion logic for async check ops
md: handle_stripe5 - add request/completion logic for async compute ops
md: handle_stripe5 - add request/completion logic for async write ops
md: common infrastructure for running operations with raid5_run_ops
md: raid5_run_ops - run stripe operations outside sh->lock
raid5: replace custom debug PRINTKs with standard pr_debug
raid5: refactor handle_stripe5 and handle_stripe6 (v3)
async_tx: add the async_tx api
xor: make 'xor_blocks' a library routine for use with async_tx
dmaengine: make clients responsible for managing channels
dmaengine: refactor dmaengine around dma_async_tx_descriptor
... -
* 'splice-2.6.23' of git://git.kernel.dk/data/git/linux-2.6-block:
splice: fix offset mangling with direct splicing (sendfile)
security: revalidate rw permissions for sys_splice and sys_vmsplice
relay: fixup kerneldoc comment
relay: fix bogus cast in subbuf_splice_actor() -
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
[MIPS] Workaround for a sparse warning in include/asm-mips/mach-tx4927/ioremap.h
[MIPS] Make show_code static and add __user tag
[MIPS] Workaround for a sparse warning in include/asm-mips/compat.h
[MIPS] Add some __user tags
[MIPS] math-emu minor cleanup
[MIPS] Kill CONFIG_TX4927BUG_WORKAROUND
[MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_FB_XPERT98
[MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_AU1000_SRC_CLK
[MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_AU1000_USE32K
[MIPS] Alchemy: Remove code wrapped by dead symbol CONFIG_AU1XXX_PSC_SPI
[CHAR] Delete leftovers of old Alchemy UART driver -
This reverts commit 904f7a3f042b5c6aa9e53ce83f2c9de5e33170ff.
As noted by Peter Anvin:
"It causes build failures on i386.
Yet another case of unnecessary divergence between i386 and x86-64
I'm afraid..."Signed-off-by: Linus Torvalds
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* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:
[PATCH] sched: small topology.h cleanup
[PATCH] sched: fix show_task()/show_tasks() output
[PATCH] sched: remove stale version info from kernel/sched_debug.c
[PATCH] sched: allow larger granularity
[PATCH] sched: fix prio_to_wmult[] for nice 1[ I re-did the commits to get rid of some bogus merge commit that
Ingo had. - Linus ]Signed-off-by: Linus Torvalds
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trivial cleanup: LOCAL_DISTANCE and REMOTE_DISTANCE are only used in
topology.h and inside an #ifndef section - limit their existence to
that #ifndef.Signed-off-by: Ingo Molnar
Signed-off-by: Linus Torvalds -
fix show_task()/show_tasks() output:
- there's no sibling info anymore
- the fields were not aligned properly with the description
- get rid of the lazy-TLB output: it's been quite some time since
we last had a bug there, and when we had a bug it wasnt helped a
bit by this debug output.Signed-off-by: Ingo Molnar
Signed-off-by: Linus Torvalds -
kernel/sched_debug.c referred to CFS -v20, but there's no CFS versioning
needed within the upstream kernel.Signed-off-by: Ingo Molnar
Signed-off-by: Linus Torvalds -
Allow granularity up to 100 msecs, instead of 10 msecs.
(needed on larger boxes)Signed-off-by: Ingo Molnar
Signed-off-by: Linus Torvalds -
There's a typo in the values in prio_to_wmult[] for nice level 1. While
it did not cause bad CPU distribution, but caused more rescheduling
between nice-0 and nice-1 tasks than necessary.Signed-off-by: Ingo Molnar
Signed-off-by: Linus Torvalds -
include2/asm/mach-tx49xx/ioremap.h:39:52: warning: cast truncates bits from constant value (fff000000 becomes ff000000)
Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
Cast to a __user pointer via "unsigned long" to get rid of this warning:
include2/asm/compat.h:135:10: warning: cast adds address space to expression ()
Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
Declaring emulpc and contpc as "unsigned long" can get rid of some casts.
This also get rid of some sparse warnings.Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
Kill workarounds for very early chip (perhaps pre-TX4927A).
Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
Noticed by Robert P. J. Day (rpjday@mindspring.com).
Signed-off-by: Ralf Baechle
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Noticed by Robert P. J. Day (rpjday@mindspring.com).
Signed-off-by: Ralf Baechle
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Noticed by Robert P. J. Day (rpjday@mindspring.com).
Signed-off-by: Ralf Baechle
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Noticed by Robert P. J. Day (rpjday@mindspring.com).
Signed-off-by: Ralf Baechle
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Signed-off-by: Ralf Baechle
13 Jul, 2007
8 commits
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Cc: John Magolan
Signed-off-by: Shannon Nelson
Signed-off-by: Dan Williams -
Cc: Russell King
Signed-off-by: Dan Williams -
Adds the platform device definitions and the architecture specific support
routines (i.e. register initialization and descriptor formats) for the
iop-adma driver.Changelog:
* add support for > 1k zero sum buffer sizes
* added dma/aau platform devices to iq80321 and iq80332 setup
* fixed the calculation in iop_desc_is_aligned
* support xor buffer sizes larger than 16MB
* fix places where software descriptors are assumed to be contiguous, only
hardware descriptors are contiguous for up to a PAGE_SIZE buffer size
* convert to async_tx
* add interrupt support
* add platform devices for 80219 boards
* do not call platform register macros in driver code
* remove switch() statements for compatible register offsets/layouts
* change over to bitmap based capabilities
* remove unnecessary ARM assembly statement
* checkpatch.pl fixes
* gpl v2 only correction
* phys move to dma_async_tx_descriptorCc: Russell King
Signed-off-by: Dan Williams -
Adds the platform device definitions and the architecture specific
support routines (i.e. register initialization and descriptor formats) for the
iop-adma driver.Changelog:
* added 'descriptor pool size' to the platform data
* add base support for buffer sizes larger than 16MB (hw max)
* build error fix from Kirill A. Shutemov
* rebase for async_tx changes
* add interrupt support
* do not call platform register macros in driver code
* remove unnecessary ARM assembly statement
* checkpatch.pl fixes
* gpl v2 only correctionCc: Russell King
Signed-off-by: Dan Williams -
The Intel(R) IOP series of i/o processors integrate an Xscale core with
raid acceleration engines. The capabilities per platform are:iop219:
(2) copy engines
iop321:
(2) copy engines
(1) xor and block fill engine
iop33x:
(2) copy and crc32c engines
(1) xor, xor zero sum, pq, pq zero sum, and block fill engine
iop34x (iop13xx):
(2) copy, crc32c, xor, xor zero sum, and block fill engines
(1) copy, crc32c, xor, xor zero sum, pq, pq zero sum, and block fill engineThe driver supports the features of the async_tx api:
* asynchronous notification of operation completion
* implicit (interupt triggered) handling of inter-channel transaction
dependenciesThe driver adapts to the platform it is running by two methods.
1/ #include which defines the hardware specific
iop_chan_* and iop_desc_* routines as a series of static inline
functions
2/ The private platform data attached to the platform_device defines the
capabilities of the channels20070626: Callbacks are run in a tasklet. Given the recent discussion on
LKML about killing tasklets in favor of workqueues I did a quick conversion
of the driver. Raid5 resync performance dropped from 50MB/s to 30MB/s, so
the tasklet implementation remains until a generic softirq interface is
available.Changelog:
* fixed a slot allocation bug in do_iop13xx_adma_xor that caused too few
slots to be requested eventually leading to data corruption
* enabled the slot allocation routine to attempt to free slots before
returning -ENOMEM
* switched the cleanup routine to solely use the software chain and the
status register to determine if a descriptor is complete. This is
necessary to support other IOP engines that do not have status writeback
capability
* make the driver iop generic
* modified the allocation routines to understand allocating a group of
slots for a single operation
* added a null xor initialization operation for the xor only channel on
iop3xx
* support xor operations on buffers larger than the hardware maximum
* split the do_* routines into separate prep, src/dest set, submit stages
* added async_tx support (dependent operations initiation at cleanup time)
* simplified group handling
* added interrupt support (callbacks via tasklets)
* brought the pending depth inline with ioat (i.e. 4 descriptors)
* drop dma mapping methods, suggested by Chris Leech
* don't use inline in C files, Adrian Bunk
* remove static tasklet declarations
* make iop_adma_alloc_slots easier to read and remove chances for a
corrupted descriptor chain
* fix locking bug in iop_adma_alloc_chan_resources, Benjamin Herrenschmidt
* convert capabilities over to dma_cap_mask_t
* fixup sparse warnings
* add descriptor flush before iop_chan_enable
* checkpatch.pl fixes
* gpl v2 only correction
* move set_src, set_dest, submit to async_tx methods
* move group_list and phys to async_txCc: Russell King
Signed-off-by: Dan Williams -
replaced by raid5_run_ops
Signed-off-by: Dan Williams
Acked-By: NeilBrown -
I/O submission requests were already handled outside of the stripe lock in
handle_stripe. Now that handle_stripe is only tasked with finding work,
this logic belongs in raid5_run_ops.Signed-off-by: Dan Williams
Acked-By: NeilBrown -
When a stripe is being expanded bulk copying takes place to move the data
from the old stripe to the new. Since raid5_run_ops only operates on one
stripe at a time these bulk copies are handled in-line under the stripe
lock. In the dma offload case we poll for the completion of the operation.After the data has been copied into the new stripe the parity needs to be
recalculated across the new disks. We reuse the existing postxor
functionality to carry out this calculation. By setting STRIPE_OP_POSTXOR
without setting STRIPE_OP_BIODRAIN the completion path in handle stripe
can differentiate expand operations from normal write operations.Signed-off-by: Dan Williams
Acked-By: NeilBrown
