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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/boards
Merge "Renesas ARM based SoC Defconfig Updates for v3.15" from Simon Horman:
* Renesas ARM based SoC boards (Global)
enable CONFIG_DEVTMPFS in defconfig
* r8a7791 SoC (R-Car M2) based Koelsch board
- Enable SATA
* r8a7790 SoC (R-Car H2) based Lager board
- Enable SATA, VIN and ADV7180 decoder in defconfig
* tag 'renesas-defconfig-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: ape6evm: enable CONFIG_DEVTMPFS in defconfig
ARM: shmobile: armadillo: enable CONFIG_DEVTMPFS in defconfig
ARM: shmobile: bockw: enable CONFIG_DEVTMPFS in defconfig
ARM: shmobile: genmai: enable CONFIG_DEVTMPFS in defconfig
ARM: shmobile: kzm9d: enable CONFIG_DEVTMPFS in defconfig
ARM: shmobile: kzm9g: enable CONFIG_DEVTMPFS in defconfig
ARM: shmobile: lager: enable CONFIG_DEVTMPFS in defconfig
ARM: shmobile: mackerel: enable CONFIG_DEVTMPFS in defconfig
ARM: shmobile: marzen: enable CONFIG_DEVTMPFS in defconfig
ARM: shmobile: lager: Enable SATA in defconfig
ARM: shmobile: koelsch: Enable DEVTMPFS_MOUNT in defconfig
ARM: shmobile: koelsch: Enable SATA in defconfig
ARM: shmobile: lager: Enable VIN along with ADV7180 decoder in defconfig
Signed-off-by: Olof Johansson <olof@lixom.net>
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DEVTMPFS is needed for udev
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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DEVTMPFS is needed for udev
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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This reverts commit e14ee5deab24200e4b70fe31a8c806f0acd3d37c
("ARM: shmobile: bockw: Do not enable CONFIG_DEVTMPFS defconfig").
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
[horms+renesas@verge.net.au: Added subject of reverted commit to changelog]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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DEVTMPFS is needed for udev
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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DEVTMPFS is needed for udev
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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DEVTMPFS is needed for udev
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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DEVTMPFS is needed for udev
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
[horms+renesas@verge.net.au: resolved trivial conflict]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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DEVTMPFS is needed for udev
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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This reverts commit 41307133da4b6f242ecbb45950b9d043c0b21b96
("ARM: shmobile: marzen: Do not enable CONFIG_DEVTMPFS defconfig").
DEVTMPFS is needed for udev.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
[horms+renesas@verge.net.au: Added subject of reverted patch to changelog]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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This enables R-Car SATA and SCSI disk in lager_defconfig.
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Without this, a Debian jessie nfsroot hangs early in the boot process.
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
[horms+renesas@verge.net.au: resolved trivial conflict]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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This enables block layer, R-Car SATA and SCSI disk in koelsch_defconfig.
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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This enables R-Car VIN SoC camera along with ADV7180 decoder,
which can be found on Lager board, to lager_defconfig.
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/boards
Merge "Renesas ARM based SoC Board Updates for v3.15" from Simon Horman:
* r8a7791 (R-Car M2) based Koelsch board
- Fix error return code check from clk_get()
- Add SATA0 support
- Conditionally select MICREL_PHY for Multiplatform
* r8a7790 (R-Car H2) based Lager board
- Add USBHS support
- Fix error return code check from clk_get()
- Add SATA support
- Make spi_flash_data const
- Add VIN1 SoC camera support
- Conditionally select CONFIG_MICREL_PHY
* r8a7778 (R-Car M1) based Bock-W board
- Add USB Func DMAEngine support
- Use HPBIF DMAEngine for sound
- Use SSI DMAEngine for sound
* emev2 (Emma Mobile EV2) based kzm9d board
- Use common clock framework
* r8a773a0 (SH-Mobile AG5) based kzm9g board
- Add zboot support
* Many boards
- Conditionally select SMSC_PHY
* tag 'renesas-boards-for-v3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: (21 commits)
ARM: shmobile: Remove Lager USBHS UDC ifdefs
ARM: shmobile: lager: Add USBHS support
ARM: shmobile: koelsch: fix error return code check from clk_get()
ARM: shmobile: lager: fix error return code check from clk_get()
ARM: shmobile: marzen: Conditionally select SMSC_PHY
ARM: shmobile: mackerel: Conditionally select SMSC_PHY
ARM: shmobile: kzm9d: Conditionally select SMSC_PHY
ARM: shmobile: bockw: Sort Kconfig node's selections
ARM: shmobile: armadillo800eva: Conditionally select SMSC_PHY
ARM: shmobile: ape6evm: Conditionally select SMSC_PHY
ARM: shmobile: koelsch: Add SATA0 support
ARM: shmobile: lager: Add SATA support
ARM: shmobile: lager: Make spi_flash_data const
ARM: shmobile: kzm9d: Use common clock framework
ARM: shmobile: lager: Add VIN1 SoC camera support
ARM: mach-shmobile: kzm9g: add zboot support
ARM: shmobile: koelsch: Conditionally select MICREL_PHY for Multiplatform
ARM: shmobile: bockw: add USB Func DMAEngine support
ARM: shmobile: bockw: use HPBIF DMAEngine for sound
ARM: shmobile: bockw: use SSI DMAEngine for sound
...
Signed-off-by: Olof Johansson <olof@lixom.net>
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Remove ifdefs to make the Lager USBHS device always present.
This makes it more like other devices, no need to be special.
Also, these ifdefs by themselves do not hurt much, but combined
with USB Host device ifdefs that were proposed earlier we could
basically end up with a kernel that drives VBUS incorrectly
depending on the kernel configuration - lets not do that.
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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This adds USBHS PHY and registers USBHS device if the driver is enabled.
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The koelsch_add_standard_devices() function calls clk_get() but then fails
to check that it returns an error pointer instead of NULL on failure.
This was added by f31239ef ("ARM: shmobile: koelsch-reference:
Instantiate clkdevs for SCIF and CMT") in Simon Horman's
renesas-boards2-for-v3.14 tag.
The issue is not serious as it does not cause a crash and seems to not be
actually causing any issues now the other clock bugs have been fixed.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[horms+renesas@verge.net.au: tweaked changelog]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The lager_add_standard_devices() function calls clk_get() but then fails
to check that it returns an error pointer instead of NULL on failure.
This was added by 4a606af2 ("ARM: shmobile: lager-reference: Instantiate
clkdevs for SCIF and CMT") patch in Simon Horman's renesas-boards2-for-v3.14
tag.
The issue is not serious as it does not cause a crash and seems to not be
actually causing any issues now the other clock bugs have been fixed.
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[horms+renesas@verge.net.au: tweaked changelog]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The marzen board uses has an SMSC911X ethernet controller which uses an
SMSC phy. Select SMSC_PHY for marzen if SMSC911X is enabled to make use of the
SMSC-specific phy driver rather than relying on the generic phy driver.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The mackerel board uses has an SMSC911X ethernet controller which uses an
SMSC phy. Select SMSC_PHY for mackerel if SMSC911X is enabled to make use of the
SMSC-specific phy driver rather than relying on the generic phy driver.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The kzm9d board uses has an SMSC911X ethernet controller which uses an
SMSC phy. Select SMSC_PHY for kzm9d if SMSC911X is enabled to make use of the
SMSC-specific phy driver rather than relying on the generic phy driver.
This only covers the case of multiplatform kzm9d
as there is currently no Kconfig node for non-multiplatform kzm9d.
One could be added if desired.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The armadillo800eva board uses has an SH ethernet controller which uses an
SMSC phy. Select SMSC_PHY for koelsch if SH_ETH is enabled to make use of the
SMSC-specific phy driver rather than relying on the generic phy driver.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The ape6evm board uses has an SMSC911X ethernet controller which uses an
SMSC phy. Select SMSC_PHY for ape6evm if SMSC911X is enabled to make use of the
SMSC-specific phy driver rather than relying on the generic phy driver.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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This adds SATA0 support to Koelsch board.
SATA1 is not available since its pinmux
configuration is fixed to PCIe.
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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This adds SATA support to Lager board. Only SATA1 port is available.
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Acked-by: Magnus Damm <damm@opensource.se>
[horms+renesas@verge.net.au: resolved trivial conflicts]
[horms+renesas@verge.net.au: capitalised "ARM" in subject]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Use common clock framework version of clock
drivers/clk/shmobile/clk-emev2.c
instead of sh-clkfwk version
arch/arm/mach-shmobile/clock-emev2.c
when it is configured as a part of multi-platform.
Signed-off-by: Takashi Yoshii <takasi-y@ops.dti.ne.jp>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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This adds VIN1 SoC camera along with ADV7180 subdevice support to Lager.
VIN0 camera is not registered because it has ADV7612 I2C subdevice
which is not supported yet.
Changes in V2:
* made lager_add_vin_device function static.
Changes in V3:
* capitalized ARM in the subject.
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Adds support to run the kernel on the uninitialized KZM9G board, using for
instance the mask ROM boot loader or JTAG. This patch tries to emulate the
style of the corresponding "mackerel" implementation. The DRAM controller
setup code has been adapted from u-boot.
Signed-off-by: Ulrich Hecht <ulrich.hecht@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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The koelsch board uses has an SH ethernet controller which uses a Micrel
phy. Select MICREL_PHY for koelsch if SH_ETH is enabled to make use of the
Micrel-specific phy driver rather than relying on the generic phy driver.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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R-Car sound driver is supporting Mem <-> SRU <-> SSI
transfer via DMAEngine.
The sound will be less noise if it uses SRU path
since it has FIFO.
This patch supports it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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R-Car sound driver is supporting Mem <-> SSI
direct transfer via DMAEngine.
Current HPB-DMA is using double plane transfer,
but the sound may have noise since SSI doesn't have FIFO.
This patch supports it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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Now that support for KSZ8041RNLI is added to the Micrel PHY driver and we intend
to support PHY IRQs on the Lager board, we have to enable the Micrel driver.
Do this by selecting CONFIG_MICREL_PHY for Lager if CONFIG_SH_ETH is enabled.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
Pull btrfs fixes from Chris Mason:
"We have a small collection of fixes in my for-linus branch.
The big thing that stands out is a revert of a new ioctl. Users
haven't shipped yet in btrfs-progs, and Dave Sterba found a better way
to export the information"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: use right clone root offset for compressed extents
btrfs: fix null pointer deference at btrfs_sysfs_add_one+0x105
Btrfs: unset DCACHE_DISCONNECTED when mounting default subvol
Btrfs: fix max_inline mount option
Btrfs: fix a lockdep warning when cleaning up aborted transaction
Revert "btrfs: add ioctl to export size of global metadata reservation"
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For non compressed extents, iterate_extent_inodes() gives us offsets
that take into account the data offset from the file extent items, while
for compressed extents it doesn't. Therefore we have to adjust them before
placing them in a send clone instruction. Not doing this adjustment leads to
the receiving end requesting for a wrong a file range to the clone ioctl,
which results in different file content from the one in the original send
root.
Issue reproducible with the following excerpt from the test I made for
xfstests:
_scratch_mkfs
_scratch_mount "-o compress-force=lzo"
$XFS_IO_PROG -f -c "truncate 118811" $SCRATCH_MNT/foo
$XFS_IO_PROG -c "pwrite -S 0x0d -b 39987 92267 39987" $SCRATCH_MNT/foo
$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap1
$XFS_IO_PROG -c "pwrite -S 0x3e -b 80000 200000 80000" $SCRATCH_MNT/foo
$BTRFS_UTIL_PROG filesystem sync $SCRATCH_MNT
$XFS_IO_PROG -c "pwrite -S 0xdc -b 10000 250000 10000" $SCRATCH_MNT/foo
$XFS_IO_PROG -c "pwrite -S 0xff -b 10000 300000 10000" $SCRATCH_MNT/foo
# will be used for incremental send to be able to issue clone operations
$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/clones_snap
$BTRFS_UTIL_PROG subvolume snapshot -r $SCRATCH_MNT $SCRATCH_MNT/mysnap2
$FSSUM_PROG -A -f -w $tmp/1.fssum $SCRATCH_MNT/mysnap1
$FSSUM_PROG -A -f -w $tmp/2.fssum -x $SCRATCH_MNT/mysnap2/mysnap1 \
-x $SCRATCH_MNT/mysnap2/clones_snap $SCRATCH_MNT/mysnap2
$FSSUM_PROG -A -f -w $tmp/clones.fssum $SCRATCH_MNT/clones_snap \
-x $SCRATCH_MNT/clones_snap/mysnap1 -x $SCRATCH_MNT/clones_snap/mysnap2
$BTRFS_UTIL_PROG send $SCRATCH_MNT/mysnap1 -f $tmp/1.snap
$BTRFS_UTIL_PROG send $SCRATCH_MNT/clones_snap -f $tmp/clones.snap
$BTRFS_UTIL_PROG send -p $SCRATCH_MNT/mysnap1 \
-c $SCRATCH_MNT/clones_snap $SCRATCH_MNT/mysnap2 -f $tmp/2.snap
_scratch_unmount
_scratch_mkfs
_scratch_mount
$BTRFS_UTIL_PROG receive $SCRATCH_MNT -f $tmp/1.snap
$FSSUM_PROG -r $tmp/1.fssum $SCRATCH_MNT/mysnap1 2>> $seqres.full
$BTRFS_UTIL_PROG receive $SCRATCH_MNT -f $tmp/clones.snap
$FSSUM_PROG -r $tmp/clones.fssum $SCRATCH_MNT/clones_snap 2>> $seqres.full
$BTRFS_UTIL_PROG receive $SCRATCH_MNT -f $tmp/2.snap
$FSSUM_PROG -r $tmp/2.fssum $SCRATCH_MNT/mysnap2 2>> $seqres.full
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
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bdev is null when disk has disappeared and mounted with
the degrade option
stack trace
---------
btrfs_sysfs_add_one+0x105/0x1c0 [btrfs]
open_ctree+0x15f3/0x1fe0 [btrfs]
btrfs_mount+0x5db/0x790 [btrfs]
? alloc_pages_current+0xa4/0x160
mount_fs+0x34/0x1b0
vfs_kern_mount+0x62/0xf0
do_mount+0x22e/0xa80
? __get_free_pages+0x9/0x40
? copy_mount_options+0x31/0x170
SyS_mount+0x7e/0xc0
system_call_fastpath+0x16/0x1b
---------
reproducer:
-------
mkfs.btrfs -draid1 -mraid1 /dev/sdc /dev/sdd
(detach a disk)
devmgt detach /dev/sdc [1]
mount -o degrade /dev/sdd /btrfs
-------
[1] github.com/anajain/devmgt.git
Signed-off-by: Anand Jain <Anand.Jain@oracle.com>
Tested-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
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A user was running into errors from an NFS export of a subvolume that had a
default subvol set. When we mount a default subvol we will use d_obtain_alias()
to find an existing dentry for the subvolume in the case that the root subvol
has already been mounted, or a dummy one is allocated in the case that the root
subvol has not already been mounted. This allows us to connect the dentry later
on if we wander into the path. However if we don't ever wander into the path we
will keep DCACHE_DISCONNECTED set for a long time, which angers NFS. It doesn't
appear to cause any problems but it is annoying nonetheless, so simply unset
DCACHE_DISCONNECTED in the get_default_root case and switch btrfs_lookup() to
use d_materialise_unique() instead which will make everything play nicely
together and reconnect stuff if we wander into the defaul subvol path from a
different way. With this patch I'm no longer getting the NFS errors when
exporting a volume that has been mounted with a default subvol set. Thanks,
cc: bfields@fieldses.org
cc: ebiederm@xmission.com
Signed-off-by: Josef Bacik <jbacik@fb.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Chris Mason <clm@fb.com>
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Currently, the only mount option for max_inline that has any effect is
max_inline=0. Any other value that is supplied to max_inline will be
adjusted to a minimum of 4k. Since max_inline has an effective maximum
of ~3900 bytes due to page size limitations, the current behaviour
only has meaning for max_inline=0.
This patch will allow the the max_inline mount option to accept non-zero
values as indicated in the documentation.
Signed-off-by: Mitch Harder <mitch.harder@sabayonlinux.org>
Signed-off-by: Chris Mason <clm@fb.com>
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Given now we have 2 spinlock for management of delayed refs,
CONFIG_DEBUG_SPINLOCK=y helped me find this,
[ 4723.413809] BUG: spinlock wrong CPU on CPU#1, btrfs-transacti/2258
[ 4723.414882] lock: 0xffff880048377670, .magic: dead4ead, .owner: btrfs-transacti/2258, .owner_cpu: 2
[ 4723.417146] CPU: 1 PID: 2258 Comm: btrfs-transacti Tainted: G W O 3.12.0+ #4
[ 4723.421321] Call Trace:
[ 4723.421872] [<ffffffff81680fe7>] dump_stack+0x54/0x74
[ 4723.422753] [<ffffffff81681093>] spin_dump+0x8c/0x91
[ 4723.424979] [<ffffffff816810b9>] spin_bug+0x21/0x26
[ 4723.425846] [<ffffffff81323956>] do_raw_spin_unlock+0x66/0x90
[ 4723.434424] [<ffffffff81689bf7>] _raw_spin_unlock+0x27/0x40
[ 4723.438747] [<ffffffffa015da9e>] btrfs_cleanup_one_transaction+0x35e/0x710 [btrfs]
[ 4723.443321] [<ffffffffa015df54>] btrfs_cleanup_transaction+0x104/0x570 [btrfs]
[ 4723.444692] [<ffffffff810c1b5d>] ? trace_hardirqs_on_caller+0xfd/0x1c0
[ 4723.450336] [<ffffffff810c1c2d>] ? trace_hardirqs_on+0xd/0x10
[ 4723.451332] [<ffffffffa015e5ee>] transaction_kthread+0x22e/0x270 [btrfs]
[ 4723.452543] [<ffffffffa015e3c0>] ? btrfs_cleanup_transaction+0x570/0x570 [btrfs]
[ 4723.457833] [<ffffffff81079efa>] kthread+0xea/0xf0
[ 4723.458990] [<ffffffff81079e10>] ? kthread_create_on_node+0x140/0x140
[ 4723.460133] [<ffffffff81692aac>] ret_from_fork+0x7c/0xb0
[ 4723.460865] [<ffffffff81079e10>] ? kthread_create_on_node+0x140/0x140
[ 4723.496521] ------------[ cut here ]------------
----------------------------------------------------------------------
The reason is that we get to call cond_resched_lock(&head_ref->lock) while
still holding @delayed_refs->lock.
So it's different with __btrfs_run_delayed_refs(), where we do drop-acquire
dance before and after actually processing delayed refs.
Here we don't drop the lock, others are not able to add new delayed refs to
head_ref, so cond_resched_lock(&head_ref->lock) is not necessary here.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
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This reverts commit 01e219e8069516cdb98594d417b8bb8d906ed30d.
David Sterba found a different way to provide these features without adding a new
ioctl. We haven't released any progs with this ioctl yet, so I'm taking this out
for now until we finalize things.
Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
CC: Jeff Mahoney <jeffm@suse.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree fixes from Rob Herring:
"Fix booting on PPC boards. Changes to of_match_node matching caused
the serial port on some PPC boards to stop working. Reverted the
change and reimplement to split matching between new style compatible
only matching and fallback to old matching algorithm"
* tag 'dt-fixes-for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: search the best compatible match first in __of_match_node()
Revert "OF: base: match each node compatible against all given matches first"
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Currently, of_match_node compares each given match against all node's
compatible strings with of_device_is_compatible.
To achieve multiple compatible strings per node with ordering from
specific to generic, this requires given matches to be ordered from
specific to generic. For most of the drivers this is not true and also
an alphabetical ordering is more sane there.
Therefore, this patch introduces a function to match each of the node's
compatible strings against all given compatible matches without type and
name first, before checking the next compatible string. This implies
that node's compatibles are ordered from specific to generic while
given matches can be in any order. If we fail to find such a match
entry, then fall-back to the old method in order to keep compatibility.
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Tested-by: Stephen Chivers <schivers@csc.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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This reverts commit 105353145eafb3ea919f5cdeb652a9d8f270228e.
Stephen Chivers reported this is broken as we will get a match
entry '.type = "serial"' instead of the '.compatible = "ns16550"'
in the following scenario:
serial0: serial@4500 {
compatible = "fsl,ns16550", "ns16550";
}
struct of_device_id of_platform_serial_table[] = {
{ .compatible = "ns8250", .data = (void *)PORT_8250, },
{ .compatible = "ns16450", .data = (void *)PORT_16450, },
{ .compatible = "ns16550a", .data = (void *)PORT_16550A, },
{ .compatible = "ns16550", .data = (void *)PORT_16550, },
{ .compatible = "ns16750", .data = (void *)PORT_16750, },
{ .compatible = "ns16850", .data = (void *)PORT_16850, },
...
{ .type = "serial", .data = (void *)PORT_UNKNOWN, },
{ /* end of list */ },
};
So just revert this patch, we will use another implementation to find
the best compatible match in a follow-on patch.
Reported-by: Stephen N Chivers <schivers@csc.com.au>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
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Pull SCSI target fixes from Nicholas Bellinger:
"Mostly minor fixes this time to v3.14-rc1 related changes. Also
included is one fix for a free after use regression in persistent
reservations UNREGISTER logic that is CC'ed to >= v3.11.y stable"
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
Target/sbc: Fix protection copy routine
IB/srpt: replace strict_strtoul() with kstrtoul()
target: Simplify command completion by removing CMD_T_FAILED flag
iser-target: Fix leak on failure in isert_conn_create_fastreg_pool
iscsi-target: Fix SNACK Type 1 + BegRun=0 handling
target: Fix missing length check in spc_emulate_evpd_83()
qla2xxx: Remove last vestiges of qla_tgt_cmd.cmd_list
target: Fix 32-bit + CONFIG_LBDAF=n link error w/ sector_div
target: Fix free-after-use regression in PR unregister
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Need to take into account that protection sg_list
(copy-buffer) may consist of multiple entries.
Changes from v0:
- Changed commit description
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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The usage of strict_strtoul() is not preferred, because
strict_strtoul() is obsolete. Thus, kstrtoul() should be
used.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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