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Add read_buf/write_buf for s3c2440, which can read/write 32 bits at a
time rather than just 8. In my testing on an s3c2440a running at 400 MHz
with a 100 MHz HCLK, read performance improves by 36% (from 5.19 MB/s
to 7.07 MB/s).
Signed-off-by: Matt Reimer <mreimer@vpop.net>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Correct kernel-doc notation and descriptions.
Correct other typos.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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[In commit 9ed437c50d89eabae763dd422579f73fdebf288d we fixed a problem
with standard permissions on newly-created inodes, when POSIX ACLs are
enabled. This cleans it up...]
The attached patch separate jffs2_init_acl() into two parts.
The one is jffs2_init_acl_pre() called from jffs2_new_inode().
It compute ACL oriented inode->i_mode bits, and allocate in-memory ACL
objects associated with the new inode just before when inode meta
infomation is written to the medium.
The other is jffs2_init_acl_post() called from jffs2_symlink(),
jffs2_mkdir(), jffs2_mknod() and jffs2_do_create().
It actually writes in-memory ACL objects into the medium next to
the success of writing meta-information.
In the current implementation, we have to write a same inode meta
infomation twice when inode->i_mode is updated by the default ACL.
However, we can avoid the behavior by putting an updated i_mode
before it is written at first, as jffs2_init_acl_pre() doing.
Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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This reverts commit a5bf3d891a6a0fb5aa122792d965e3774108b923.
David Brownell notes that this causes a regression visible in the
drivers/usb/gadget Kconfig file:
"That Kconfig hasn't changed (other than adding new drivers), and it's
worked that way for several years now ... so the issue seems to be
changes in menuconfig/kconfig/etc semantics.
The issue is that when USB_GADGET=m, it's no longer possible to
configure peripheral controller drivers as modules ... the
controller drivers can now only be configured for static linkage.
It should be making a choice of one of the controller drivers which
could work on the target system, and allow that driver to be linked
either as a module (ok iff USB_GADGET=m) or statically."
Reverting this commit resolves the problem, and also fixes a second
problem that David noticed: various dependent options couldn't be enabled.
Tested-and-reported-by: David Brownell <david-b@pacbell.net>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Jan Beulich <jbeulich@novell.com>,
Cc: Andrew Morton <akpm@linux-foundation.org>,
Cc: Sam Ravnborg <sam@ravnborg.org>,
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (74 commits)
fix do_sys_open() prototype
sysfs: trivial: fix sysfs_create_file kerneldoc spelling mistake
Documentation: Fix typo in SubmitChecklist.
Typo: depricated -> deprecated
Add missing profile=kvm option to Documentation/kernel-parameters.txt
fix typo about TBI in e1000 comment
proc.txt: Add /proc/stat field
small documentation fixes
Fix compiler warning in smount example program from sharedsubtree.txt
docs/sysfs: add missing word to sysfs attribute explanation
documentation/ext3: grammar fixes
Documentation/java.txt: typo and grammar fixes
Documentation/filesystems/vfs.txt: typo fix
include/asm-*/system.h: remove unused set_rmb(), set_wmb() macros
trivial copy_data_pages() tidy up
Fix typo in arch/x86/kernel/tsc_32.c
file link fix for Pegasus USB net driver help
remove unused return within void return function
Typo fixes retrun -> return
x86 hpet.h: remove broken links
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (21 commits)
Fix build break in tsi108.c
qeth: remove header_ops bug
ir-functions.c:(.text+0xbce18): undefined reference to `input_event'
NAPI: kconfig prompt and deleted doc file
phy/bitbang: missing MODULE_LICENSE
DM9000 initialization fix
[PATCH] rt2x00: Add new rt73usb USB ID
[PATCH] rt2x00: Fix residual check in PLCP calculations.
[PATCH] iwlwifi: Fix rate setting in probe request for HW sacn
[PATCH] b43: Make b43_stop() static
[PATCH] drivers/net/wireless/b43/main.c: fix an uninitialized variable
[PATCH] iwlwifi: set correct base rate for A band in rs_dbgfs_set_mcs
[PATCH] zd1211rw, fix oops when ejecting install media
[PATCH] b43legacy: Fix potential return of uninitialized variable
[PATCH] iwl4965-base.c: fix off-by-one errors
[PATCH] p54: Make filter configuration atomic
[PATCH] rtl8187: remove NICMAC setting in configure_filters callback
[PATCH] janitorial: fix all double includes in drivers/net/wireless
[PATCH] rtl8187: Fix more frag bit checking, rts duration calc
[PATCH] ipw2100: send WEXT scan events
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[libata] sata_sis: use correct S/G table size
pata_cs5536: MWDMA fix
sata_sis: fix SCR read breakage
libata: fix kernel-doc param name
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream
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Fix build break:
drivers/net/tsi108_eth.c: In function 'tsi108_init_one':
drivers/net/tsi108_eth.c:1633: error: expected ')' before 'dev'
drivers/net/tsi108_eth.c:1633: warning: too few arguments for format
make[2]: *** [drivers/net/tsi108_eth.o] Error 1
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Remove qeth bug caused by commit:
[NET]: Move hardware header operations out of netdevice.
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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[bugme-daemon@bugzilla.kernel.org wrote:]
From: Randy Dunlap <randy.dunlap@oracle.com>
Drivers that use lro functions should depend on INET, otherwise they
may not link correctly. Let's not select INET. Select should be used
only for library-like code, not to enable subsystems.
ERROR: "lro_flush_all" [drivers/net/myri10ge/myri10ge.ko] undefined!
ERROR: "lro_receive_frags" [drivers/net/myri10ge/myri10ge.ko] undefined!
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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- make the kconfig NAPI option prompt consistent across all net drivers
(other than EXPERIMENTAL; can it now be removed also, or is the new
napi_struct implementation now EXPERIMENTAL ?)
- remove comment about the now-deleted NAPI_HOWTO.txt file
- clean up typos in Tulip NAPI & Interrupt Mitigation
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Missing MODULE_LICENSE(), loading this module taints the kernel.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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DM9000 driver returns success even if it is failed to detect the chip.
Below patch fixes it.
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
drivers/net/dm9000.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Erez Zadok reports that certain configurations fail to build due to
schedule() TASK_[UN]INTERRUPTIBLE not being declared. Add proper
include files to fix.
Cc: Erez Zadok <ezk@cs.sunysb.edu>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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sata_sis has the same restrictions as other SFF controllers, and so must
use LIBATA_MAX_PRD to denote that SCSI may only fill ATA_MAX_PRD/2
entries, due to our need to handle IOMMU merging.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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* Fix out-of-bound array access for MWDMA modes.
* Bump driver version.
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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SCR read for controllers which uses PCI configuration space for SCR
access got broken while adding @val argument to SCR accessors. Fix
it.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Fix libata kernel-doc parameter name.
Warning(linux-2.6.23-git13//drivers/ata/libata-core.c:1415): No description found for parameter 'sgl'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6: (50 commits)
ide: remove inclusion of non-existent io_trace.h
ide-disk: add get_smart_data() helper
ide: fix ->data_phase in taskfile_load_raw()
ide: check drive->using_dma in flagged_taskfile()
ide: check ->dma_setup() return value in flagged_taskfile()
dtc2278: note on docs
qd65xx: remove pointless qd_{read,write}_reg() (take 2)
ide: PCI BMDMA initialization fixes (take 2)
ide: remove stale comments from ide-taskfile.c
ide: remove dead code from ide_driveid_update()
ide: use __ide_end_request() in ide_end_dequeued_request()
ide: enhance ide_setup_pci_noise()
cs5530: remove needless ide_lock taking
ide: take ide_lock for prefetch disable/enable in do_special()
ht6560b: fix deadlock on error handling
cmd640: fix deadlock on error handling
slc90e66: fix deadlock on error handling
opti621: fix deadlock on error handling
qd65xx: fix deadlock on error handling
dtc2278: fix deadlock on error handling
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Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* master.kernel.org:/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (29 commits)
dm crypt: tidy pending
dm mpath: send uevents
dm: uevent generate events
dm: add uevent to core
dm: export name and uuid
dm raid1: add mirror_set to struct mirror
dm log: split suspend
dm mpath: hp retry if not ready
dm mpath: add hp handler
dm mpath: add retry pg init
dm crypt: tidy labels
dm crypt: tidy whitespace
dm crypt: add post processing queue
dm crypt: use per device singlethread workqueues
dm mpath: emc fix an error message
dm: bio_list macro renaming
dm io:ctl remove vmalloc void cast
dm: tidy bio_io_error usage
kcopyd use mutex instead of semaphore
dm: use kzalloc
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Fix an argument name in do_sys_open()'s prototype.
Signed-off-by: Jason Uhlenkott <juhlenko@akamai.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Spelling error in sysfs_create_file kerneldoc.
Signed-off-by: Chris Malley <mail@chrismalley.co.uk>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Signed-off-by: James Bowes <jbowes@dangerouslyinc.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Typo: depricated -> deprecated
Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Whilst looking up what profile=sleep did, I noticed that we missed
adding docs for the most recent addition to the profiler.
Signed-off-by: Dave Jones <davej@redhat.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Signed-off-by: Masatake YAMATO <jet@gyve.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Weird I thought I had written the makefile so this would be handled. Oh
well this should fix it.
Sorry about that.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Acked-and-tested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch updates the "cat /proc/stat" output found
in Documentation/filesystems/proc.txt.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Add crypt prefix to dec_pending to avoid confusing it in backtraces with
the dm core function of the same name.
No functional change here.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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This patch adds calls to dm_path_event for a failed path and a reinstated
path.
Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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This patch adds support for the dm_path_event dm_send_event functions which
create and send udev events.
Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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This patch adds a uevent skeleton to device-mapper.
Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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This patch adds a function to obtain a copy of a mapped device's name and uuid.
Signed-off-by: Mike Anderson <andmike@linux.vnet.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Store a pointer to the owning mirror_set structure within each mirror
structure for a subsequent patch to use.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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There are now two phases to a suspend in device-mapper -
presuspend and postsuspend. This patch removes the
single 'suspend' in the logging API and replaces it with
'presuspend' and 'postsuspend' functions to align it
better with core device-mapper.
A subsequent patch will make use of 'presuspend'.
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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This patch adds retries to the hp hardware handler, and utilizes the
MP_RETRY flag of dm-multipath. For now in the hp handler, if we get a
pg_init completed with a check condition we just assume we can retry the
pg_init command. We make this assumption because of incomplete data on
specific check condition code of the HP hardware, and because testing
has shown the HP path initialization command to be idempotent.
The number of times we retry is settable via the "pg_init_retries"
multipath map feature.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Acked-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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This patch adds the most basic dm-multipath hardware support for the
HP active/passive arrays.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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This patch allows a failed path group initialisation command to be retried.
It adds a generic MP_RETRY flag and a "pg_init_retries" feature to
device-mapper multipath which limits the number of retries.
1. A hw handler sends a path initialization command to the storage and
the command completes with an error code indicating the command
should be retried.
2. The hardware handler calls dm_pg_init_complete() with MP_RETRY
set in err_flags to ask the dm multipath core to retry.
3. If the retry limit has not been exceeded, pg_init() is retried.
Otherwise fail_path() is called.
If you are using the userspace multipath-tools or device-mapper-multipath
package, you can set pg_init_retries in the 'device' section of your
/etc/multipath.conf file. For example:
features "2 pg_init_retries 7"
The number of PG retries attempted is reported in the 'dmsetup status' output.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Acked-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Replace numbers with names in labels in error paths, to avoid confusion
when new one get added between existing ones.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Clean up, convert some spaces to tabs.
No functional change here.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Add post-processing queue (per crypt device) for read operations.
Current implementation uses only one queue for all operations
and this can lead to starvation caused by many requests waiting
for memory allocation. But the needed memory-releasing operation
is queued after these requests (in the same queue).
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Use a separate single-threaded workqueue for each crypt device
instead of one global workqueue.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Correct an error message, reported by Michael Wood <michael@frogfoot.com>.
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Remove BIO_LIST and DEFINE_BIO_LIST macros that gain us nothing
since contents are initialised to NULL.
Cc: Jan Engelhardt <jengelh@linux01.gwdg.de>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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In drivers/md/dm-ioctl.c::copy_params() there's a call to vmalloc()
where we currently cast the return value, but that's pretty pointless
given that vmalloc() returns "void *".
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Use bio_io_error() in only two places and tidy the code,
preparing for later patches.
There is no functional change in this patch.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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Kcopyd uses a semaphore as mutex. Use the mutex API instead of the (binary)
semaphore,
Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Convert kmalloc() + memset() to kzalloc().
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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