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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (45 commits)
[SCSI] qla2xxx: Update version number to 8.03.00-k1.
[SCSI] qla2xxx: Add ISP81XX support.
[SCSI] qla2xxx: Use proper request/response queues with MQ instantiations.
[SCSI] qla2xxx: Correct MQ-chain information retrieval during a firmware dump.
[SCSI] qla2xxx: Collapse EFT/FCE copy procedures during a firmware dump.
[SCSI] qla2xxx: Don't pollute kernel logs with ZIO/RIO status messages.
[SCSI] qla2xxx: Don't fallback to interrupt-polling during re-initialization with MSI-X enabled.
[SCSI] qla2xxx: Remove support for reading/writing HW-event-log.
[SCSI] cxgb3i: add missing include
[SCSI] scsi_lib: fix DID_RESET status problems
[SCSI] fc transport: restore missing dev_loss_tmo callback to LLDD
[SCSI] aha152x_cs: Fix regression that keeps driver from using shared interrupts
[SCSI] sd: Correctly handle 6-byte commands with DIX
[SCSI] sd: DIF: Fix tagging on platforms with signed char
[SCSI] sd: DIF: Show app tag on error
[SCSI] Fix error handling for DIF/DIX
[SCSI] scsi_lib: don't decrement busy counters when inserting commands
[SCSI] libsas: fix test for negative unsigned and typos
[SCSI] a2091, gvp11: kill warn_unused_result warnings
[SCSI] fusion: Move a dereference below a NULL test
...
Fixed up trivial conflict due to moving the async part of sd_probe
around in the async probes vs using dev_set_name() in naming.
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* 'bkl-removal' of git://git.lwn.net/linux-2.6:
RTC: Remove the BKL.
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* 'docs-next' of git://git.lwn.net/linux-2.6:
Fix a typo in the development process document.
Document handling of bad memory
Document RCU and unloadable modules
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Remove calls to the BKL since concurrent access is protected
by the spin lock rtc_lock.
Signed-off-by: David John <davidjon@xenontk.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Reported-by: Aníbal Monsalve Salazar <anibal@debian.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
regulator: fix kernel-doc warnings
regulator: catch some registration errors
regulator: Add basic DocBook manual
regulator: Fix some kerneldoc rendering issues
regulator: Add missing kerneldoc
regulator: Clean up kerneldoc warnings
regulator: Remove extraneous kerneldoc annotations
regulator: init/link earlier
regulator: move set_machine_constraints after regulator device initialization
regulator: da903x: make da903x_is_enabled return 0 or 1
regulator: da903x: add '\n' to error messages
regulator: sysfs attribute reduction (v2)
regulator: code shrink (v2)
regulator: improved mode error checks
regulator: enable/disable refcounting
regulator: struct device - replace bus_id with dev_name(), dev_set_name()
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (84 commits)
wimax: fix kernel-doc for debufs_dentry member of struct wimax_dev
net: convert pegasus driver to net_device_ops
bnx2x: Prevent eeprom set when driver is down
net: switch kaweth driver to netdevops
pcnet32: round off carrier watch timer
i2400m/usb: wrap USB power saving in #ifdef CONFIG_PM
wimax: testing for rfkill support should also test for CONFIG_RFKILL_MODULE
wimax: fix kconfig interactions with rfkill and input layers
wimax: fix '#ifndef CONFIG_BUG' layout to avoid warning
r6040: bump release number to 0.20
r6040: warn about MAC address being unset
r6040: check PHY status when bringing interface up
r6040: make printks consistent with DRV_NAME
gianfar: Fixup use of BUS_ID_SIZE
mlx4_en: Returning real Max in get_ringparam
mlx4_en: Consider inline packets on completion
netdev: bfin_mac: enable bfin_mac net dev driver for BF51x
qeth: convert to net_device_ops
vlan: add neigh_setup
dm9601: warn on invalid mac address
...
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* master.kernel.org:/home/rmk/linux-2.6-arm: (23 commits)
[ARM] fix pxa930_trkball build errors
[ARM] fix netx
[ARM] fix pnx4008
[ARM] fix pxa
[ARM] remove missed CLPS7500 defconfig
[ARM] clps711x: fix warning in edb7211-mm.c
[ARM] clps711x: fix warning in fortunet
[ARM] fix AT91, davinci, h720x, ks8695, msm, mx2, mx3, netx, omap1, omap2, pxa, s3c
[ARM] Fix realview build
[ARM] 5357/1: Kirkwood: add missing ge01 tclk initialization
[ARM] 5358/1: AT2440EVB: Use new include path of mci.h
[ARM] 5361/1: mv78xx0: fix compilation error
[ARM] 5360/1: Orion: fix compilation error
[ARM] 5359/1: Kirkwood: fix compilation error
[ARM] S3C64XX: Fix EINT group macro definition
[ARM] Ensure CONFIG_SERIAL_SAMSUNG_UARTS is always set.
[ARM] S3C24XX: Add gpio_to_irq implementation
[ARM] S3C24XX: Add gpio_to_irq() facility
[ARM] footbridge: dc21285.c warning fixes
[ARM] footbridge: add isa_init_irq() to common header
...
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* 'for-linus' of git://neil.brown.name/md:
md: don't retry recovery of raid1 that fails due to error on source drive.
md: Allow md devices to be created by name.
md: make devices disappear when they are no longer needed.
md: centralise all freeing of an 'mddev' in 'md_free'
md: move allocation of ->queue from mddev_find to md_probe
md: need another print_sb for mdp_superblock_1
md: use list_for_each_entry macro directly
md: raid0: make hash_spacing and preshift sector-based.
md: raid0: Represent the size of strip zones in sectors.
md: raid0 create_strip_zones(): Add KERN_INFO/KERN_ERR to printk's.
md: raid0 create_strip_zones(): Make two local variables sector-based.
md: raid0: Represent zone->zone_offset in sectors.
md: raid0: Represent device offset in sectors.
md: raid0_make_request(): Replace local variable block by sector.
md: raid0_make_request(): Remove local variable chunk_size.
md: raid0_make_request(): Replace chunksize_bits by chunksect_bits.
md: use sysfs_notify_dirent to notify changes to md/sync_action.
md: fix bitmap-on-external-file bug.
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git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: clean up the SFF code for coding style
libata: Add 32bit PIO support
[libata] ahci: Withdraw IGN_SERR_INTERNAL for SB800 SATA
pata_hpt366: reimplement mode programming
[libata] pata_hpt3x3: correct _freeze() function declaration
libata: Add special ata_pio_need_iordy() handling for Compact Flash.
pata_platform: __pata_platform_remove() shouldn't be in discard section
sata_sil24: remove unused sil24_port_multiplier
[libata] ahci: Add SATA GEN3 related messages
ata_piix: save, use saved and restore IOCFG
pata_ali: Fix and workaround for FIFO DMA bug
pata_ali: force initialise a few bits
pata_hpt3x3: Workarounds for chipset
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Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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This matters for some controllers and in one or two cases almost doubles
PIO performance. Add a bmdma32 operations set we can inherit and activate
it for some controllers
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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There is an issue in ATI SB600/SB700 SATA that PxSERR.E should not be
set on some conditions, which will lead to many SATA ODD error messages.
commit 55a61604cd1354e1783364e1c901034f2f474b7d is the workaround.
Since SB800 fixed this HW issue, IGN_SERR_INTERNAL should be withdrawn
for SB800.
Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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If a raid1 has only one working drive and it has a sector which
gives an error on read, then an attempt to recover onto a spare will
fail, but as the single remaining drive is not removed from the
array, the recovery will be immediately re-attempted, resulting
in an infinite recovery loop.
So detect this situation and don't retry recovery once an error
on the lone remaining drive is detected.
Allow recovery to be retried once every time a spare is added
in case the problem wasn't actually a media error.
Signed-off-by: NeilBrown <neilb@suse.de>
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Using sequential numbers to identify md devices is somewhat artificial.
Using names can be a lot more user-friendly.
Also, creating md devices by opening the device special file is a bit
awkward.
So this patch provides a new option for creating and naming devices.
Writing a name such as "md_home" to
/sys/modules/md_mod/parameters/new_array
will cause an array with that name to be created. It will appear in
/sys/block/ /proc/partitions and /proc/mdstat as 'md_home'.
It will have an arbitrary minor number allocated.
md devices that a created by an open are destroyed on the last
close when the device is inactive.
For named md devices, they will not be destroyed until the array
is explicitly stopped, either with the STOP_ARRAY ioctl or by
writing 'clear' to /sys/block/md_XXXX/md/array_state.
The name of the array must start 'md_' to avoid conflict with
other devices.
Signed-off-by: NeilBrown <neilb@suse.de>
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Currently md devices, once created, never disappear until the module
is unloaded. This is essentially because the gendisk holds a
reference to the mddev, and the mddev holds a reference to the
gendisk, this a circular reference.
If we drop the reference from mddev to gendisk, then we need to ensure
that the mddev is destroyed when the gendisk is destroyed. However it
is not possible to hook into the gendisk destruction process to enable
this.
So we drop the reference from the gendisk to the mddev and destroy the
gendisk when the mddev gets destroyed. However this has a
complication.
Between the call
__blkdev_get->get_gendisk->kobj_lookup->md_probe
and the call
__blkdev_get->md_open
there is no obvious way to hold a reference on the mddev any more, so
unless something is done, it will disappear and gendisk will be
destroyed prematurely.
Also, once we decide to destroy the mddev, there will be an unlockable
moment before the gendisk is unlinked (blk_unregister_region) during
which a new reference to the gendisk can be created. We need to
ensure that this reference can not be used. i.e. the ->open must
fail.
So:
1/ in md_probe we set a flag in the mddev (hold_active) which
indicates that the array should be treated as active, even
though there are no references, and no appearance of activity.
This is cleared by md_release when the device is closed if it
is no longer needed.
This ensures that the gendisk will survive between md_probe and
md_open.
2/ In md_open we check if the mddev we expect to open matches
the gendisk that we did open.
If there is a mismatch we return -ERESTARTSYS and modify
__blkdev_get to retry from the top in that case.
In the -ERESTARTSYS sys case we make sure to wait until
the old gendisk (that we succeeded in opening) is really gone so
we loop at most once.
Some udev configurations will always open an md device when it first
appears. If we allow an md device that was just created by an open
to disappear on an immediate close, then this can race with such udev
configurations and result in an infinite loop the device being opened
and closed, then re-open due to the 'ADD' even from the first open,
and then close and so on.
So we make sure an md device, once created by an open, remains active
at least until some md 'ioctl' has been made on it. This means that
all normal usage of md devices will allow them to disappear promptly
when not needed, but the worst that an incorrect usage will do it
cause an inactive md device to be left in existence (it can easily be
removed).
As an array can be stopped by writing to a sysfs attribute
echo clear > /sys/block/mdXXX/md/array_state
we need to use scheduled work for deleting the gendisk and other
kobjects. This allows us to wait for any pending gendisk deletion to
complete by simply calling flush_scheduled_work().
Signed-off-by: NeilBrown <neilb@suse.de>
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md_free is the .release handler for the md kobj_type.
So it makes sense to release all the objects referenced by
the mddev in there, rather than just prior to calling kobject_put
for what we think is the last time.
Signed-off-by: NeilBrown <neilb@suse.de>
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It is more balanced to just do simple initialisation in mddev_find,
which allocates and links a new md device, and leave all the
more sophisticated allocation to md_probe (which calls mddev_find).
md_probe already allocated the gendisk. It should allocate the
queue too.
Signed-off-by: NeilBrown <neilb@suse.de>
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md_print_devices is called in two code path: MD_BUG(...), and md_ioctl
with PRINT_RAID_DEBUG. it will dump out all in use md devices
information;
However, it wrongly processed two types of superblock in one:
The header file <linux/raid/md_p.h> has defined two types of superblock,
struct mdp_superblock_s (typedefed with mdp_super_t) according to md with
metadata 0.90, and struct mdp_superblock_1 according to md with metadata
1.0 and later,
These two types of superblock are very different,
The md_print_devices code processed them both in mdp_super_t, that would
lead to wrong informaton dump like:
[ 6742.345877]
[ 6742.345887] md: **********************************
[ 6742.345890] md: * <COMPLETE RAID STATE PRINTOUT> *
[ 6742.345892] md: **********************************
[ 6742.345896] md1: <ram7><ram6><ram5><ram4>
[ 6742.345907] md: rdev ram7, SZ:00065472 F:0 S:1 DN:3
[ 6742.345909] md: rdev superblock:
[ 6742.345914] md: SB: (V:0.90.0) ID:<42ef13c7.598c059a.5f9f1645.801e9ee6> CT:4919856d
[ 6742.345918] md: L5 S00065472 ND:4 RD:4 md1 LO:2 CS:65536
[ 6742.345922] md: UT:4919856d ST:1 AD:4 WD:4 FD:0 SD:0 CSUM:b7992907 E:00000001
[ 6742.345924] D 0: DISK<N:0,(1,8),R:0,S:6>
[ 6742.345930] D 1: DISK<N:1,(1,10),R:1,S:6>
[ 6742.345933] D 2: DISK<N:2,(1,12),R:2,S:6>
[ 6742.345937] D 3: DISK<N:3,(1,14),R:3,S:6>
[ 6742.345942] md: THIS: DISK<N:3,(1,14),R:3,S:6>
...
[ 6742.346058] md0: <ram3><ram2><ram1><ram0>
[ 6742.346067] md: rdev ram3, SZ:00065472 F:0 S:1 DN:3
[ 6742.346070] md: rdev superblock:
[ 6742.346073] md: SB: (V:1.0.0) ID:<369aad81.00000000.00000000.00000000> CT:9a322a9c
[ 6742.346077] md: L-1507699579 S976570180 ND:48 RD:0 md0 LO:65536 CS:196610
[ 6742.346081] md: UT:00000018 ST:0 AD:131048 WD:0 FD:8 SD:0 CSUM:00000000 E:00000000
[ 6742.346084] D 0: DISK<N:-1,(-1,-1),R:-1,S:-1>
[ 6742.346089] D 1: DISK<N:-1,(-1,-1),R:-1,S:-1>
[ 6742.346092] D 2: DISK<N:-1,(-1,-1),R:-1,S:-1>
[ 6742.346096] D 3: DISK<N:-1,(-1,-1),R:-1,S:-1>
[ 6742.346102] md: THIS: DISK<N:0,(0,0),R:0,S:0>
...
[ 6742.346219] md: **********************************
[ 6742.346221]
Here md1 is metadata 0.90.0, and md0 is metadata 1.2
After some more code to distinguish these two types of superblock, in this patch,
it will generate dump information like:
[ 7906.755790]
[ 7906.755799] md: **********************************
[ 7906.755802] md: * <COMPLETE RAID STATE PRINTOUT> *
[ 7906.755804] md: **********************************
[ 7906.755808] md1: <ram7><ram6><ram5><ram4>
[ 7906.755819] md: rdev ram7, SZ:00065472 F:0 S:1 DN:3
[ 7906.755821] md: rdev superblock (MJ:0):
[ 7906.755826] md: SB: (V:0.90.0) ID:<3fca7a0d.a612bfed.5f9f1645.801e9ee6> CT:491989f3
[ 7906.755830] md: L5 S00065472 ND:4 RD:4 md1 LO:2 CS:65536
[ 7906.755834] md: UT:491989f3 ST:1 AD:4 WD:4 FD:0 SD:0 CSUM:00fb52ad E:00000001
[ 7906.755836] D 0: DISK<N:0,(1,8),R:0,S:6>
[ 7906.755842] D 1: DISK<N:1,(1,10),R:1,S:6>
[ 7906.755845] D 2: DISK<N:2,(1,12),R:2,S:6>
[ 7906.755849] D 3: DISK<N:3,(1,14),R:3,S:6>
[ 7906.755855] md: THIS: DISK<N:3,(1,14),R:3,S:6>
...
[ 7906.755972] md0: <ram3><ram2><ram1><ram0>
[ 7906.755981] md: rdev ram3, SZ:00065472 F:0 S:1 DN:3
[ 7906.755984] md: rdev superblock (MJ:1):
[ 7906.755989] md: SB: (V:1) (F:0) Array-ID:<5fbcf158:55aa:5fbe:9a79:1e939880dcbd>
[ 7906.755990] md: Name: "DG5:0" CT:1226410480
[ 7906.755998] md: L5 SZ130944 RD:4 LO:2 CS:128 DO:24 DS:131048 SO:8 RO:0
[ 7906.755999] md: Dev:00000003 UUID: 9194d744:87f7:a448:85f2:7497b84ce30a
[ 7906.756001] md: (F:0) UT:1226410480 Events:0 ResyncOffset:-1 CSUM:0dbcd829
[ 7906.756003] md: (MaxDev:384)
...
[ 7906.756113] md: **********************************
[ 7906.756116]
this md0 (metadata 1.2) information dumping is exactly according to struct
mdp_superblock_1.
Signed-off-by: Cheng Renquan <crquan@gmail.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Dan Williams <dan.j.williams@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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The rdev_for_each macro defined in <linux/raid/md_k.h> is identical to
list_for_each_entry_safe, from <linux/list.h>, it should be defined to
use list_for_each_entry_safe, instead of reinventing the wheel.
But some calls to each_entry_safe don't really need a safe version,
just a direct list_for_each_entry is enough, this could save a temp
variable (tmp) in every function that used rdev_for_each.
In this patch, most rdev_for_each loops are replaced by list_for_each_entry,
totally save many tmp vars; and only in the other situations that will call
list_del to delete an entry, the safe version is used.
Signed-off-by: Cheng Renquan <crquan@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
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This patch renames the hash_spacing and preshift members of struct
raid0_private_data to spacing and sector_shift respectively and
changes the semantics as follows:
We always have spacing = 2 * hash_spacing. In case
sizeof(sector_t) > sizeof(u32) we also have sector_shift = preshift + 1
while sector_shift = preshift = 0 otherwise.
Note that the values of nb_zone and zone are unaffected by these changes
because in the sector_div() preceeding the assignement of these two
variables both arguments double.
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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This completes the block -> sector conversion of struct strip_zone.
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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This patch consists only of these trivial changes.
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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current_offset and curr_zone_offset stored the corresponding offsets
as 1K quantities. Rename them to current_start and curr_zone_start
to match the naming of struct strip_zone and store the offsets as
sector counts.
Also, add KERN_INFO to the printk() affected by this change to make
checkpatch happy.
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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For the same reason as in the previous patch, rename it from zone_offset
to zone_start.
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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Rename zone->dev_offset to zone->dev_start to make sure all users
have been converted.
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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This change already simplifies the code a bit.
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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We might as well use chunk_sects instead.
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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As ffz(~(2 * x)) = ffz(~x) + 1, we have
chunksect_bits = chunksize_bits + 1.
Fixup all users accordingly.
Signed-off-by: Andre Noll <maan@systemlinux.org>
Signed-off-by: NeilBrown <neilb@suse.de>
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There is no compelling need for this, but sysfs_notify_dirent is a
nicer interface and the change is good for consistency.
Signed-off-by: NeilBrown <neilb@suse.de>
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commit a2ed9615e3222645007fc19991aedf30eed3ecfd
fixed a bug with 'internal' bitmaps, but in the process broke
'in a file' bitmaps. So they are broken in 2.6.28
This fixes it, and needs to go in 2.6.28-stable.
Signed-off-by: NeilBrown <neilb@suse.de>
Cc: stable@kernel.org
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Reimplement mode programming logic of pata_hpt366 such that it's
identical to that of IDE hpt366 driver. The differences were...
* pata_hpt366 used 0xCFFF8FFFF to mask pio modes and 0x3FFFFFFF dma
modes. IDE hpt366 uses 0xC1F8FFFF for PIO, 0x303800FF for MWDMA and
0x30070000 for UDMA.
* pata_hpt366 doesn't set 0x08000000 for PIO unless it's already set
and always turns it on for MWDMA/UDMA. IDE hpt366 doesn't bother
with the bit. It always uses what was there.
* IDE hpt366 always clears 0xC0000000. pata_hpt366 doesn't.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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According to the Compact Flash specification r4.1, PIO modes 5 and 6
do not use iordy.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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--
UPD include/linux/compile.h
`___pata_platform_remove' referenced in section `__ksymtab_gpl' of
drivers/built-in.o: defined in discarded section `.devexit.text' of
drivers/built-in.o
make: *** [.tmp_vmlinux1] Error 1
--
__pata_platform_remove() should not be in discarded section
__pata_platform_remove(struct device *dev) is invoked in both
pata_platform.c and pata_of_platform.c by reomve function defined in
discarded section ".devexit.text". An exported function should not be put
into discarded section.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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AFAICT, struct sil24_port_multiplier isn't used anywhere. Remove it.
Signed-off-by: Grant Grundler <grundler@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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The present AHCI driver seems to support SATA GEN 3 speed, but the related
messages should be modified.
Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Certain ACPI implementations mess up IOCFG on _STM making libata
detect cable type incorrectly after a suspend/resume cycle. This
patch makes ata_piix save IOCFG on attach, use the saved value for
things which aren't dynamic and restore it on detach so that the next
driver also gets the BIOS initialized value.
This patch contains the following changes.
* makes ich_pata_cable_detect() use saved_iocfg.
* make piix_iocfg_bit18_quirk() take @host and use saved_iocfg.
* hpriv allocation moved upwards to save iocfg before doing anything
else.
This fixes bz#11879. Andreas Mohr reported and diagnosed the problem.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Andreas Mohr <andi@lisas.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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In very obscure cases this can cause problems. We need to help the hardware
out a bit to avoid DMA problems on a reset.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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We can't assume some of the setup here on non x86 boxes.
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Correct the DMA bit flags (UDMA and MWDMA were swapped)
Add workarounds so that we clear ERR and INTR bits before issuing a DMA
Add workarounds so that we stop a live DMA before touching the CTL register
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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turns out that there are real problems with allowing async
tasks that are scheduled from async tasks to run after
the async_synchronize_full() returns.
This patch makes the _full more strict and a complete
synchronization. Later I might need to add back a lighter
form of synchronization for other uses.. but not right now.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Reported by Randy Dunlap from a warning in the v2.6.29 merge window
tree as of 2009/1/8.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix kernel-doc warnings in regulator/driver.h:
Warning(linux-next-20090108//include/linux/regulator/driver.h:95): Excess struct/union/enum/typedef member 'set_current' description in 'regulator_ops'
Warning(linux-next-20090108//include/linux/regulator/driver.h:95): Excess struct/union/enum/typedef member 'get_current' description in 'regulator_ops'
Warning(linux-next-20090108//include/linux/regulator/driver.h:124): No description found for parameter 'irq'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
cc: Liam Girdwood <lrg@slimlogic.co.uk>
cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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Prevent registration of duplicate "struct regulator" names.
They'd be unavailable, and clearly indicate something wrong.
[Edited to remove check for NULL consumer device until we have a
solution for things like cpufreq -- broonie]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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Add a basic DocBook manual for the regulator API. This is much more
skeletal than the existing text documentation, the main benefit is to
provide a skeleton for automatic generation of a manual based on the
kerneldoc for the API.
Since large portions of the text are lifted from the existing text format
documentation written by Liam Girdwood much of the credit belongs to
him.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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There are some minor textual changes in here as well, mostly to enable()
and disable() but the primary goal of these changes is to fix
misrenderings of the kerneldoc documentation for the regulator API.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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This is only the documentation that the kerneldoc system warns about.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
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