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Remove parameters not used by any of the callbacks.
Signed-off-by: David Sterba <dsterba@suse.com>
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Remove parameters not used by any of the callbacks.
Signed-off-by: David Sterba <dsterba@suse.com>
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The callbacks make use of different parameters that are passed to the
other type unnecessarily. This patch adds separate types for each and
the unused parameters will be removed.
The type extent_submit_bio_hook_t keeps all parameters and can be used
where the start/done types are not appropriate.
Signed-off-by: David Sterba <dsterba@suse.com>
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A useless wrapper around tree_mod_log_insert_root that hides missing
error handling. Move it to the callers.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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A trivial wrapper that can be simply opencoded and makes the GFP
allocation request more visible. The error handling is now moved to the
callers.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The wrapper is effectively an alias for tree_mod_log_insert_move but
also hides the missing error handling. To make that more visible, lift
the BUG_ON to the callers.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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The wrappers are trivial and do not bring any extra value on top of the
plain locking primitives.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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It's provided by the extent_buffer.
Signed-off-by: David Sterba <dsterba@suse.com>
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The tree_mod_move is not used anywhere and can be embedded as anonymous
structure.
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: David Sterba <dsterba@suse.com>
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It's provided by the extent_buffer.
Signed-off-by: David Sterba <dsterba@suse.com>
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It's provided by the extent_buffer.
Signed-off-by: David Sterba <dsterba@suse.com>
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It's provided by the extent_buffer.
Signed-off-by: David Sterba <dsterba@suse.com>
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It's provided by the extent_buffer.
Signed-off-by: David Sterba <dsterba@suse.com>
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It's provided by the extent_buffer.
Signed-off-by: David Sterba <dsterba@suse.com>
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Signed-off-by: David Sterba <dsterba@suse.com>
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The merge call was factored out to a separate helper but it's a trivial
one and arguably we can opencode it and cache the value.
Signed-off-by: David Sterba <dsterba@suse.com>
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The value of page_end is only stored to end, no other use.
Signed-off-by: David Sterba <dsterba@suse.com>
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All callers pass a valid pointer so we can drop the redundant checks.
The call to submit_one_bio never happend and can be removed.
Signed-off-by: David Sterba <dsterba@suse.com>
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In case of raid56, writes and rebuilds always take BTRFS_STRIPE_LEN(64K)
as unit, however, scrub_extent() sets blocksize as unit, so rebuild
process may be triggered on every block on a same stripe.
A typical example would be that when we're replacing a disappeared disk,
all reads on the disks get -EIO, every block (size is 4K if blocksize is
4K) would go thru these,
scrub_handle_errored_block
scrub_recheck_block # re-read pages one by one
scrub_recheck_block # rebuild by calling raid56_parity_recover()
page by page
Although with raid56 stripe cache most of reads during rebuild can be
avoided, the parity recover calculation(xor or raid6 algorithms) needs to
be done $(BTRFS_STRIPE_LEN / blocksize) times.
This makes it smarter by doing raid56 scrub/replace on stripe length.
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Sort mount options by the primary name, followed by the 'no-'
counterpart if it exists. Group the deprecated and debugging options.
Enum and token defintions are synced.
Signed-off-by: David Sterba <dsterba@suse.com>
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Btrfs has two mount options for SSD optimizations: ssd and ssd_spread.
Presently there is an option to disable all SSD optimizations, but there
isn't an option to disable just ssd_spread.
This patch adds a mount option nossd_spread that disables ssd_spread
only.
Reviewed-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Howard McLauchlan <hmclauchlan@fb.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Since userspace transaction have been removed we no longer have use
for this field so delete it.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Now that the userspace transaction ioctls have been removed,
TRANS_USERSPACE is no longer used hence we can remove it.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Now that the userspace transaction IOCTL have been removed, this member
is no longer used so just remove it
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Commit 3558d4f88ec8 ("btrfs: Deprecate userspace transaction ioctls")
marked the beginning of the end of userspace transaction. This commit
finishes the job! There are no known users and ceph does not use the
ioctl anymore.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Acked-by: Sage Weil <sage@redhat.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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are created with quota enabled
When multiple pending snapshots referring to the same source subvolume
are executed, enabled quota will cause root item corruption, where root
items are using old bytenr (no backref in extent tree).
This can be triggered by fstests btrfs/152.
The cause is when source subvolume is still dirty, extra commit
(simplied transaction commit) of qgroup_account_snapshot() can skip
dirty roots not recorded in current transaction, making root item of
source subvolume not updated.
Fix it by forcing recording source subvolume in current transaction
before qgroup sub-transaction commit.
Reported-by: Justin Maggard <jmaggard@netgear.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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When performing an unlock on an extent buffer we'd like to order the
decrement of extent_buffer::blocking_writers with waking up any
waiters. In such situations it's sufficient to use smp_mb__after_atomic
rather than the heavy smp_mb. On architectures where atomic operations
are fully ordered (such as x86 or s390) unconditionally executing
a heavyweight smp_mb instruction causes a severe hit to performance
while bringin no improvements in terms of correctness.
The better thing is to use the appropriate smp_mb__after_atomic routine
which will do the correct thing (invoke a full smp_mb or in the case
of ordered atomics insert a compiler barrier). Put another way,
an RMW atomic op + smp_load__after_atomic equals, in terms of
semantics, to a full smp_mb. This ensures that none of the problems
described in the accompanying comment of waitqueue_active occur.
No functional changes.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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Some functions can filter metadata by the generation. Add a define that
will annotate such arguments.
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ update changelog ]
Signed-off-by: David Sterba <dsterba@suse.com>
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The called function name is self explanatory.
Signed-off-by: David Sterba <dsterba@suse.com>
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The current implementation of btrfs_page_exists_in_range() gives the
wrong answer if the workingset code has stored a shadow entry in the
page cache. The filemap_range_has_page() function does not have this
problem, and it's shared code, so use it instead.
eigned-off-by: Matthew Wilcox <mawilcox@microsoft.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
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When modifying the page mapping of a HW memory region
(via a UMR post), post the new values inlined in WQE,
instead of using a data pointer.
This is a micro-optimization, inline UMR WQEs of different
rings scale better in HW.
In addition, this obsoletes a few control flows and helps
delete ~50 LOC.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Do not busy-wait a pending UMR completion. Under high HW load,
busy-waiting a delayed completion would fully utilize the CPU core
and mistakenly indicate a SW bottleneck.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Gets the process of a UMR WQE post in one function,
in preparation for a downstream patch that inlines
the WQE data.
No functional change here.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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In Striding RQ, each WQE serves multiple packets
(hence called Multi-Packet WQE, MPWQE).
The size of a MPWQE is constant (currently 256KB).
Upon a ringparam set operation, we calculate the number of
MPWQEs per RQ. For this, first it is needed to determine the
number of packets that can reside within a single MPWQE.
In this patch we use the actual MTU size instead of ETH_DATA_LEN
for this calculation.
This implies that a change in MTU might require a change
in Striding RQ ring size.
In addition, this obsoletes some WQEs-to-packets translation
functions and helps delete ~60 LOC.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Knowing the MTU is required for RQ creation flow.
By our design, channels creation flow is totally isolated
from priv/netdev, and can be completed with access to
channels params and mdev.
Adding the MTU to the channels params helps preserving that.
In addition, we save it in RQ to make its access faster in
datapath checks.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Fix spelling mistake in debug message text.
"dettaching" -> "detaching"
Signed-off-by: Talat Batheesh <talatb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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With ConnectX-4, we expect the force teardown to fail in case that
DC was enabled, therefore change the message from error to warning.
Signed-off-by: Alaa Hleihel <alaa@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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1. This function is not used anywhere in mlx5 driver
2. It has a memcpy statement that makes no sense and produces build
warning with gcc8
drivers/net/ethernet/mellanox/mlx5/core/transobj.c: In function 'mlx5_core_query_xsrq':
drivers/net/ethernet/mellanox/mlx5/core/transobj.c:347:3: error: 'memcpy' source argument is the same as destination [-Werror=restrict]
Fixes: 01949d0109ee ("net/mlx5_core: Enable XRCs and SRQs when using ISSI > 0")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Instead of looking for the EQ of the CQ, remove that redundant code and
use the eq pointer stored in the cq struct.
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
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Simply move these inline functions outside the ifdef instead of duplicating
them as stubs in the !OF case. The struct device of_node field does not
depend on OF.
This also fixes the missing stubbed pci_bus_to_OF_node().
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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Commit eed85ff4c0da ("PCI/DPC: Enable DPC only if AER is available") made
DPC control dependent whether AER is enabled in the OS. However, it does
not take into account situations where BIOS has not given OS control of
AER:
acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
acpi PNP0A08:00: _OSC: platform does not support [AER]
acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME PCIeCapability]
I think here it is better not to enable DPC even if the capability is
available because then it would be against what "Determination of DPC
Control" note in PCIe 4.0 sec 6.1.10 recommends.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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Because I will be leaving Samsung soon, for reachability update
my reference e-mail to etezian.org.
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Executing stmfts_power_on() function lasts over 2 seconds, what
significantly slows down the boot and resume processes if driver is
compiled in. Avoid this delay by forcing this driver to be probed
and suspended/resumed asynchronously.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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The primary interface for the touchpad device in Thinkpad L570 is SMBus,
so ALPS overlooked PS2 interface Firmware setting of TrackStick, and
shipped with TrackStick otp bit is disabled.
The address 0xD7 contains device number information, so we can identify
the device by checking this value, but to access it we need to enable
Command mode, and then re-enable the device. Devices shipped in Thinkpad
L570 report either 0x0C or 0x1D as device numbers, if we see them we assume
that the devices are DualPoints.
The same issue exists on Dell Latitude 7370.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196929
Fixes: 646580f793 ("Input: ALPS - fix multi-touch decoding on SS4 plus touchpads")
Signed-off-by: Masaki Ota <masaki.ota@jp.alps.com>
Tested-by: Aaron Ma <aaron.ma@canonical.com>
Tested-by: Jonathan Liu <net147@gmail.com>
Tested-by: Jaak Ristioja <jaak@ristioja.ee>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Replace pci_find_ext_capability(..., PCI_EXT_CAP_ID_ERR) calls with
pci_dev->aer_cap.
pci_dev->aer_cap is initialized in pci_init_capabilities(), which happens
before any of these users of the AER Capability.
Signed-off-by: Frederick Lawler <fred@fredlawl.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The platform may restrict the OS's use of PCIe services, e.g., via the ACPI
_OSC method. The user may use "pcie_ports=native" to force the port driver
to use PCIe services even if the platform asked us not to.
The "pcie_ports=native" parameter determines the setting of
pcie_ports_auto. Rename this to pcie_ports_native and reverse the
sense to simplify the code.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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"pcie_ports_auto" is only used inside the PCIe port driver itself, so
move it from include/linux/pci.h to portdrv.h so it's not visible to the
whole kernel.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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The "pcie_ports=auto" parameter set pcie_ports_disabled and pcie_ports_auto
to their compiled-in defaults, so specifying the parameter is the same as
not using it at all.
Remove the "pcie_ports=auto" parameter and update the documentation.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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7570a333d8b0 ("PCI: Add pcie_hp=nomsi to disable MSI/MSI-X for pciehp
driver") added the "pcie_hp=nomsi" kernel parameter to work around this
error on shutdown:
irq 16: nobody cared (try booting with the "irqpoll" option)
Pid: 1081, comm: reboot Not tainted 3.2.0 #1
...
Disabling IRQ #16
This happened on an unspecified system (possibly involving the Integrated
Device Technology, Inc. Device 807f bridge) where "an un-wanted interrupt
is generated when PCI driver switches from MSI/MSI-X to INTx while shutting
down the device."
The implication was that the device was buggy, but it is normal for a
device to use INTx after MSI/MSI-X have been disabled. The only problem
was that the driver was still attached and it wasn't prepared for INTx
interrupts. Prarit Bhargava fixed this issue with fda78d7a0ead ("PCI/MSI:
Stop disabling MSI/MSI-X in pci_device_shutdown()").
There is no automated way to set this parameter, so it's not very useful
for distributions or end users. It's really only useful for debugging, and
we have "pci=nomsi" for that purpose.
Revert 7570a333d8b0 to remove the "pcie_hp=nomsi" parameter.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
CC: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>
CC: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
CC: Prarit Bhargava <prarit@redhat.com>
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