In __ext4_super() we always overwrote the user specified journal_ioprio
value with a default value, expecting parse_apply_sb_mount_options() to
later correctly set ctx->journal_ioprio to the user specified value.
However, if parse_apply_sb_mount_options() returned early because of
empty sbi->es_s->s_mount_opts, the correct journal_ioprio value was
never set.
This patch fixes __ext4_super() to only use the default value if the
user has not specified any value for journal_ioprio.
Similarly, the remount behavior was to either use journal_ioprio
value specified during initial mount, or use the default value
irrespective of the journal_ioprio value specified during remount.
This patch modifies this to first check if a new value for ioprio
has been passed during remount and apply it. If no new value is
passed, use the value specified during initial mount.
Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com>
Tested-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/20220418083545.45778-1-ojaswin@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Otherwise nonaligned fstrim calls will works inconveniently for iterative
scanners, for example:
// trim [0,16MB] for group-1, but mark full group as trimmed
fstrim -o $((1024*1024*128)) -l $((1024*1024*16)) ./m
// handle [16MB,16MB] for group-1, do nothing because group already has the flag.
fstrim -o $((1024*1024*144)) -l $((1024*1024*16)) ./m
[ Update function documentation for ext4_trim_all_free -- TYT ]
Signed-off-by: Dmitry Monakhov <dmtrmonakhov@yandex-team.ru>
Link: https://lore.kernel.org/r/1650214995-860245-1-git-send-email-dmtrmonakhov@yandex-team.ru
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
Zoned devices are expected to have zone sizes in the range of 1-2GB for
ZNS SSDs and SMR HDDs have zone sizes of 256MB, so there is no need to
allow arbitrarily small zone sizes on btrfs.
But for testing purposes with emulated devices it is sometimes desirable
to create devices with as small as 4MB zone size to uncover errors.
So use 4MB as the smallest possible zone size and reject mounts of devices
with a smaller zone size.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Btrfs defaults to max_inline=2K to make small writes inlined into
metadata.
The default value is always a win, as even DUP/RAID1/RAID10 doubles the
metadata usage, it should still cause less physical space used compared
to a 4K regular extents.
But since the introduction of RAID1C3 and RAID1C4 it's no longer the case,
users may find inlined extents causing too much space wasted, and want
to convert those inlined extents back to regular extents.
Unfortunately defrag will unconditionally skip all inline extents, no
matter if the user is trying to converting them back to regular extents.
So this patch will add a small exception for defrag_collect_targets() to
allow defragging inline extents, if and only if the inlined extents are
larger than max_inline, allowing users to convert them to regular ones.
This also allows us to defrag extents like the following:
item 6 key (257 EXTENT_DATA 0) itemoff 15794 itemsize 69
generation 7 type 0 (inline)
inline extent data size 48 ram_bytes 4096 compression 1 (zlib)
item 7 key (257 EXTENT_DATA 4096) itemoff 15741 itemsize 53
generation 7 type 1 (regular)
extent data disk byte 13631488 nr 4096
extent data offset 0 nr 16384 ram 16384
extent compression 1 (zlib)
Previously we're unable to do any defrag, since the first extent is
inlined, and the second one has no extent to merge.
Now we can defrag it to just one single extent, saving 48 bytes metadata
space.
item 6 key (257 EXTENT_DATA 0) itemoff 15810 itemsize 53
generation 8 type 1 (regular)
extent data disk byte 13635584 nr 4096
extent data offset 0 nr 20480 ram 20480
extent compression 1 (zlib)
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The following error message lack the "0x" obviously:
cannot mount because of unsupported optional features (4000)
Add the prefix to make it less confusing. This can happen on older
kernels that try to mount a filesystem with newer features so it makes
sense to backport to older trees.
CC: stable@vger.kernel.org # 4.14+
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
When reserving metadata units for creating an inode, we don't need to
reserve one extra unit for the inode ref item because when creating the
inode, at btrfs_create_new_inode(), we always insert the inode item and
the inode ref item in a single batch (a single btree insert operation,
and both ending up in the same leaf).
As we have accounted already one unit for the inode item, the extra unit
for the inode ref item is superfluous, it only makes us reserve more
metadata than necessary and often adding more reclaim pressure if we are
low on available metadata space.
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The block_group->alloc_offset is an offset from the start of the block
group. OTOH, the ->meta_write_pointer is an address in the logical
space. So, we should compare the alloc_offset shifted with the
block_group->start.
Fixes: afba2bc036 ("btrfs: zoned: implement active zone tracking")
CC: stable@vger.kernel.org # 5.16+
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
A send operation reads extent data using the buffered IO path for getting
extent data to send in write commands and this is both because it's simple
and to make use of the generic readahead infrastructure, which results in
a massive speedup.
However this fills the page cache with data that, most of the time, is
really only used by the send operation - once the write commands are sent,
it's not useful to have the data in the page cache anymore. For large
snapshots, bringing all data into the page cache eventually leads to the
need to evict other data from the page cache that may be more useful for
applications (and kernel subsystems).
Even if extents are shared with the subvolume on which a snapshot is based
on and the data is currently on the page cache due to being read through
the subvolume, attempting to read the data through the snapshot will
always result in bringing a new copy of the data into another location in
the page cache (there's currently no shared memory for shared extents).
So make send evict the data it has read before if when it first opened
the inode, its mapping had no pages currently loaded: when
inode->i_mapping->nr_pages has a value of 0. Do this instead of deciding
based on the return value of filemap_range_has_page() before reading an
extent because the generic readahead mechanism may read pages beyond the
range we request (and it very often does it), which means a call to
filemap_range_has_page() will return true due to the readahead that was
triggered when processing a previous extent - we don't have a simple way
to distinguish this case from the case where the data was brought into
the page cache through someone else. So checking for the mapping number
of pages being 0 when we first open the inode is simple, cheap and it
generally accomplishes the goal of not trashing the page cache - the
only exception is if part of data was previously loaded into the page
cache through the snapshot by some other process, in that case we end
up not evicting any data send brings into the page cache, just like
before this change - but that however is not the common case.
Example scenario, on a box with 32G of RAM:
$ btrfs subvolume create /mnt/sv1
$ xfs_io -f -c "pwrite 0 4G" /mnt/sv1/file1
$ btrfs subvolume snapshot -r /mnt/sv1 /mnt/snap1
$ free -m
total used free shared buff/cache available
Mem: 31937 186 26866 0 4883 31297
Swap: 8188 0 8188
# After this we get less 4G of free memory.
$ btrfs send /mnt/snap1 >/dev/null
$ free -m
total used free shared buff/cache available
Mem: 31937 186 22814 0 8935 31297
Swap: 8188 0 8188
The same, obviously, applies to an incremental send.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This documentation provides wrong node name for the Ethernet controller.
It should be "ethernet" instead of "smsc" as required by Ethernet
controller devicetree schema:
Documentation/devicetree/bindings/net/ethernet-controller.yaml
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220517111505.929722-4-o.rempel@pengutronix.de
Create initial schema for Microchip/SMSC LAN95xx USB Ethernet controllers and
import some of currently supported USB IDs form drivers/net/usb/smsc95xx.c
These devices are already used in some of DTs. So, this schema makes it official.
NOTE: there was no previously documented txt based DT binding for this
controllers.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220517111505.929722-3-o.rempel@pengutronix.de
Create schema for ASIX USB Ethernet controllers and import some of
currently supported USB IDs form drivers/net/usb/asix_devices.c
These devices are already used in some of DTs. So, this schema makes it official.
NOTE: there was no previously documented txt based DT binding for this
controllers.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220517111505.929722-2-o.rempel@pengutronix.de
When we boot a machine using a devicetree, the generic DT code goes
through all nodes with a 'device_type = "memory"' property, and collects
all memory banks mentioned there. However it does not check for the
status property, so any nodes which are explicitly "disabled" will still
be added as a memblock.
This ends up badly for QEMU, when booting with secure firmware on
arm/arm64 machines, because QEMU adds a node describing secure-only
memory:
===================
secram@e000000 {
secure-status = "okay";
status = "disabled";
reg = <0x00 0xe000000 0x00 0x1000000>;
device_type = "memory";
};
===================
The kernel will eventually use that memory block (which is located below
the main DRAM bank), but accesses to that will be answered with an
SError:
===================
[ 0.000000] Internal error: synchronous external abort: 96000050 [#1] PREEMPT SMP
[ 0.000000] Modules linked in:
[ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.18.0-rc6-00014-g10c8acb8b679 #524
[ 0.000000] Hardware name: linux,dummy-virt (DT)
[ 0.000000] pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 0.000000] pc : new_slab+0x190/0x340
[ 0.000000] lr : new_slab+0x184/0x340
[ 0.000000] sp : ffff80000a4b3d10
....
==================
The actual crash location and call stack will be somewhat random, and
depend on the specific allocation of that physical memory range.
As the DT spec[1] explicitly mentions standard properties, add a simple
check to skip over disabled memory nodes, so that we only use memory
that is meant for non-secure code to use.
That fixes booting a QEMU arm64 VM with EL3 enabled ("secure=on"), when
not using UEFI. In this case the QEMU generated DT will be handed on
to the kernel, which will see the secram node.
This issue is reproducible when using TF-A together with U-Boot as
firmware, then booting with the "booti" command.
When using U-Boot as an UEFI provider, the code there [2] explicitly
filters for disabled nodes when generating the UEFI memory map, so we
are safe.
EDK/2 only reads the first bank of the first DT memory node [3] to learn
about memory, so we got lucky there.
[1] https://github.com/devicetree-org/devicetree-specification/blob/main/source/chapter3-devicenodes.rst#memory-node (after the table)
[2] https://source.denx.de/u-boot/u-boot/-/blob/master/lib/fdtdec.c#L1061-1063
[3] https://github.com/tianocore/edk2/blob/master/ArmVirtPkg/PrePi/FdtParser.c
Reported-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220517101410.3493781-1-andre.przywara@arm.com
Adaptive-rx and Adaptive-tx are interrupt moderation settings
that can be enabled/disabled using ethtool:
ethtool -C ethX adaptive-rx on/off adaptive-tx on/off
Unfortunately those settings are getting cleared after
changing number of queues, or in ethtool world 'channels':
ethtool -L ethX rx 1 tx 1
Clearing was happening due to introduction of bit fields
in ice_ring_container struct. This way only itr_setting
bits were rebuilt during ice_vsi_rebuild_set_coalesce().
Introduce an anonymous struct of bitfields and create a
union to refer to them as a single variable.
This way variable can be easily saved and restored.
Fixes: 61dc79ced7 ("ice: Restore interrupt throttle settings after VSI rebuild")
Signed-off-by: Michal Wilczynski <michal.wilczynski@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
The hardware statistics counters are not cleared during resets so the
drivers first access is to initialize the baseline and then subsequent
reads are for reporting the counters. The statistics counters are read
during the watchdog subtask when the interface is up. If the baseline
is not initialized before the interface is up, then there can be a brief
window in which some traffic can be transmitted/received before the
initial baseline reading takes place.
Directly initialize ethtool statistics in driver open so the baseline will
be initialized when the interface is up, and any dropped packets
incremented before the interface is up won't be reported.
Fixes: 28dc1b86f8 ("ice: ignore dropped packets during init")
Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Do not allow to write timestamps on RX rings if PF is being configured.
When PF is being configured RX rings can be freed or rebuilt. If at the
same time timestamps are updated, the kernel will crash by dereferencing
null RX ring pointer.
PID: 1449 TASK: ff187d28ed658040 CPU: 34 COMMAND: "ice-ptp-0000:51"
#0 [ff1966a94a713bb0] machine_kexec at ffffffff9d05a0be
#1 [ff1966a94a713c08] __crash_kexec at ffffffff9d192e9d
#2 [ff1966a94a713cd0] crash_kexec at ffffffff9d1941bd
#3 [ff1966a94a713ce8] oops_end at ffffffff9d01bd54
#4 [ff1966a94a713d08] no_context at ffffffff9d06bda4
#5 [ff1966a94a713d60] __bad_area_nosemaphore at ffffffff9d06c10c
#6 [ff1966a94a713da8] do_page_fault at ffffffff9d06cae4
#7 [ff1966a94a713de0] page_fault at ffffffff9da0107e
[exception RIP: ice_ptp_update_cached_phctime+91]
RIP: ffffffffc076db8b RSP: ff1966a94a713e98 RFLAGS: 00010246
RAX: 16e3db9c6b7ccae4 RBX: ff187d269dd3c180 RCX: ff187d269cd4d018
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ff187d269cfcc644 R8: ff187d339b9641b0 R9: 0000000000000000
R10: 0000000000000002 R11: 0000000000000000 R12: ff187d269cfcc648
R13: ffffffff9f128784 R14: ffffffff9d101b70 R15: ff187d269cfcc640
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#8 [ff1966a94a713ea0] ice_ptp_periodic_work at ffffffffc076dbef [ice]
#9 [ff1966a94a713ee0] kthread_worker_fn at ffffffff9d101c1b
#10 [ff1966a94a713f10] kthread at ffffffff9d101b4d
#11 [ff1966a94a713f50] ret_from_fork at ffffffff9da0023f
Fixes: 77a781155a ("ice: enable receive hardware timestamping")
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Reviewed-by: Michal Schmidt <mschmidt@redhat.com>
Tested-by: Dave Cain <dcain@redhat.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Enable access to the NFSv4 acl via the NFSv4.1 'dacl' and 'sacl'
attributes.
This allows the server to authenticate the DACL and the SACL operations
separately, since reading and/or editing the SACL is usually considered
to be a privileged operation.
It also allows the propagation of automatic inheritance information that
was not supported by the NFSv4.0 'acl' attribute.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Add the ability to set or retrieve the acl using the NFSv4.1 'dacl' and
'sacl' attributes to the NFSv4 xdr encoders/decoders.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
When caching a NFSv4 ACL, we want to specify whether we are caching an
NFSv4.0 type acl, the NFSv4.1 dacl or the NFSv4.1 sacl.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
- Correctly expose GICv3 support even if no irqchip is created
so that userspace doesn't observe it changing pointlessly
(fixing a regression with QEMU)
- Don't issue a hypercall to set the id-mapped vectors when
protected mode is enabled
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Merge tag 'kvmarm-fixes-5.18-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 5.18, take #3
- Correctly expose GICv3 support even if no irqchip is created
so that userspace doesn't observe it changing pointlessly
(fixing a regression with QEMU)
- Don't issue a hypercall to set the id-mapped vectors when
protected mode is enabled (fix for pKVM in combination with
CPUs affected by Spectre-v3a)
Merge series from Cezary Rojewski <cezary.rojewski@intel.com>:
Part three of main AVS driver series. This series was originally part of
the initial series which was later divided [1] into smaller,
easier-to-review chunks. Thus, many patches found here were already
present on the list.
This series consists of code typical to many drivers - PCI driver
operations, trace ability, PM operations - as well as PCM handlers for
all standard audio interfaces, that is, HDA, I2S and DMIC are found
here.
Series starts with updating firmware boot flow - libraries are no longer
ignored. This change is dependent on already merged topology code [2]
and because of that could not be part of the initial series [1].
PCM operations are split into four changes. First component operations
alone i.e. operations which are usually agnostic towards path position
(FE/BE). Then it continues with "generic" FE operations - there is no
interface split here as from Intel ADSP point of view, FE, or HOST side
as it's called in the specs, involves HD-Audio operations only.
BE (also known as LINK) side on the other hand is divided into
"non-HD-Audio" and HD-Audio part. The former represents transfer over
DMIC and I2S interfaces both.
While patches implementing standard PCI driver operations along (again
standard) HD-Audio initialization routines followed up by power
management handlers are two major ones, series covers also other
important subjects such as:
While patches implementing standard PCI driver operations along (again
standard) HD-Audio initialization routines followed up by power
management handlers are two major ones, series covers also other
important subjects such as:
- event tracing
- preparation for firmware tracing (debugability)
- coredump (debugability)
- recovery flow (attempt recovery after IPC timeout or exception)
- D0ix (D0 device substate, complements standard power management)
Series is finalized by actual addition of supported platforms: SKL and
APL-based. Platform-specific files are limited to firmware-specific
bits, that is, bits that are specific to given firmware generation.
Everything else is shared and is part of already upstream messaging
code found in ipc.c, messages.c and messages.h files.
Changes in v3:
- addressed (hopefully) trace-code compilation under .configs with
CONFIG_FTRACE dropped
Changes in v2:
- usage of avs_releast_last_firmware() dropped in error path for library
loading procedure as suggested by Pierre
- 'link_mask' usage replaced with 'i2s_link_mask' as requested by
Pierre. Existing code addressed with new patch:
"ASoC: Intel: avs: Replace link_mask usage with i2s_link_mask"
- fixed possible race during recovery flow (->recovering flag is now
atomic and tested in single location only).
- dropped platform prefixes for basically all i2s board descriptors
- 'ssp_test' renamed to 'i2s_test' to match naming convention of other
boards
- simplified PM implementation for current series, 'low_power' bits
moved to future series
- replaced SND_INTEL_DSP_DRIVER_SST with _AVS as suggested by Mark.
Required changes to intel-dspcfg will be added in future series
- number of typos across commit messages addressed
[1]: https://lore.kernel.org/all/20220311153544.136854-1-cezary.rojewski@intel.com/
[2]: https://lore.kernel.org/all/20220331135246.993089-1-cezary.rojewski@intel.com/
Cezary Rojewski (14):
ASoC: Intel: avs: Account for libraries when booting basefw
ASoC: Intel: avs: Generic soc component driver
ASoC: Intel: avs: Generic PCM FE operations
ASoC: Intel: avs: non-HDA PCM BE operations
ASoC: Intel: avs: HDA PCM BE operations
ASoC: Intel: avs: Coredump and recovery flow
ASoC: Intel: avs: Prepare for firmware tracing
ASoC: Intel: avs: D0ix power state support
ASoC: Intel: avs: Event tracing
ASoC: Intel: avs: Machine board registration
ASoC: Intel: avs: PCI driver implementation
ASoC: Intel: avs: Power management
ASoC: Intel: avs: SKL-based platforms support
ASoC: Intel: avs: APL-based platforms support
Piotr Maziarz (1):
ASoC: Intel: avs: Replace link_mask usage with i2s_link_mask
include/sound/intel-dsp-config.h | 3 +-
include/sound/soc-acpi.h | 2 +
sound/soc/intel/Kconfig | 2 +
sound/soc/intel/avs/Makefile | 7 +-
sound/soc/intel/avs/apl.c | 250 ++++++
sound/soc/intel/avs/avs.h | 79 ++
sound/soc/intel/avs/board_selection.c | 501 +++++++++++
sound/soc/intel/avs/core.c | 631 +++++++++++++
sound/soc/intel/avs/dsp.c | 27 +-
sound/soc/intel/avs/ipc.c | 253 +++++-
sound/soc/intel/avs/loader.c | 84 ++
sound/soc/intel/avs/messages.c | 35 +-
sound/soc/intel/avs/messages.h | 51 ++
sound/soc/intel/avs/pcm.c | 1182 +++++++++++++++++++++++++
sound/soc/intel/avs/registers.h | 8 +
sound/soc/intel/avs/skl.c | 125 +++
sound/soc/intel/avs/topology.c | 14 +-
sound/soc/intel/avs/trace.c | 33 +
sound/soc/intel/avs/trace.h | 154 ++++
sound/soc/intel/avs/utils.c | 23 +
20 files changed, 3443 insertions(+), 21 deletions(-)
create mode 100644 sound/soc/intel/avs/apl.c
create mode 100644 sound/soc/intel/avs/board_selection.c
create mode 100644 sound/soc/intel/avs/pcm.c
create mode 100644 sound/soc/intel/avs/skl.c
create mode 100644 sound/soc/intel/avs/trace.c
create mode 100644 sound/soc/intel/avs/trace.h
--
2.25.1
When doing layoutget as part of the open() compound, we have to be
careful to release the layout locks before we can call any further RPC
calls, such as setattr(). The reason is that those calls could trigger
a recall, which could deadlock.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Only report the error when the server is returning a fatal error, such
as ESTALE, EIO, etc...
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
When we handle an error by redirtying the page, we're not corrupting the
mapping, so we don't want the error to be recorded in the mapping.
If the caller has specified a sync_mode of WB_SYNC_NONE, we can just
return AOP_WRITEPAGE_ACTIVATE. However if we're dealing with
WB_SYNC_ALL, we need to ensure that retries happen when the errors are
non-fatal.
Reported-by: Olga Kornievskaia <aglo@umich.edu>
Fixes: 8fc75bed96 ("NFS: Fix up return value on fatal errors in nfs_page_async_flush()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Commit 587f03deb6 caused pnfs_update_layout() to stop returning ENOMEM
when the memory allocation fails, and hence causes it to fall back to
trying to do I/O through the MDS. There is no guarantee that this will
fare any better. If we're failing the pNFS layout allocation, then we
should just redirty the page and retry later.
Reported-by: Olga Kornievskaia <aglo@umich.edu>
Fixes: 587f03deb6 ("pnfs: refactor send_layoutget")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
We need to filter out ENOMEM in nfs_error_is_fatal_on_server(), because
running out of memory on our client is not a server error.
Reported-by: Olga Kornievskaia <aglo@umich.edu>
Fixes: 2dc23afffb ("NFS: ENOMEM should also be a fatal error.")
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Clock source is prepared and enabled by clk_prepare_enable()
in probe function, but not disabled or unprepared in remove
function.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220516092911.953066-1-yangyingliang@huawei.com
The callers already have dereferenced pointer to GPIO chip, no need to
do it again in chv_gpio_irq_mask_unmask(). Hence, replace IRQ data pointer
by GPIO chip pointer.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
When "-o device" mount option is not specified, scan the device table
and instantiate the devices if there's any in the device table. In this
case, the tag field of each device slot uniquely specifies a device.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220512055601.106109-1-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Use asynchronous io to read data from fscache may greatly improve IO
bandwidth for sequential buffered read scenario.
Change erofs_fscache_read_folios to erofs_fscache_read_folios_async,
and read data from fscache asynchronously.
Make .readpage()/.readahead() to use this new helper.
Signed-off-by: Xin Yin <yinxin.x@bytedance.com>
Reviewed-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220509074028.74954-23-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
[ Gao Xiang: minor styling changes. ]
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Introduce 'fsid' mount option to enable on-demand read sementics, in
which case, erofs will be mounted from data blobs. Users could specify
the name of primary data blob by this mount option.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-22-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Tested-by: Zichen Tian <tianzichen@kuaishou.com>
Tested-by: Jia Zhu <zhujia.zj@bytedance.com>
Tested-by: Yan Song <yansong.ys@antgroup.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Implement the data plane of reading data from data blobs over fscache
for inline layout.
For the heading non-inline part, the data plane for non-inline layout is
reused, while only the tail packing part needs special handling.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-20-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Implement the data plane of reading data from data blobs over fscache
for non-inline layout.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-19-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Similar to the multi-device mode, erofs could be mounted from one
primary data blob (mandatory) and multiple extra data blobs (optional).
Register fscache context for each extra data blob.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-17-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Registers fscache context for primary data blob. Also move the
initialization of s_op and related fields forward, since anonymous
inode will be allocated under the super block when registering the
fscache context.
Something worth mentioning about the cleanup routine.
1. The fscache context will instantiate anonymous inodes under the super
block. Release these anonymous inodes when .put_super() is called, or
we'll get "VFS: Busy inodes after unmount." warning.
2. The fscache context is initialized prior to the root inode. If
.kill_sb() is called when mount failed, .put_super() won't be called
when root inode has not been initialized yet. Thus .kill_sb() shall
also contain the cleanup routine.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-16-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Add erofs_fscache_read_folios() helper reading from fscache. It supports
on-demand read semantics. That is, it will make the backend prepare for
the data when cache miss. Once data ready, it will read from the cache.
This helper can then be used to implement .readpage()/.readahead() of
on-demand read semantics.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-15-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Introduce one anonymous inode for data blobs so that erofs can cache
metadata directly within such anonymous inode.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-14-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Introduce a context structure for managing data blobs, and helper
functions for initializing and cleaning up this context structure.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-13-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
A new fscache based mode is going to be introduced for erofs, in which
case on-demand read semantics is implemented through fscache.
As the first step, register fscache volume for each erofs filesystem.
That means, data blobs can not be shared among erofs filesystems. In the
following iteration, we are going to introduce the domain semantics, in
which case several erofs filesystems can belong to one domain, and data
blobs can be shared among these erofs filesystems of one domain.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-12-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Until then erofs is exactly blockdev based filesystem.
A new fscache-based mode is going to be introduced for erofs to support
scenarios where on-demand read semantics is needed, e.g. container
image distribution. In this case, erofs could be mounted from data blobs
through fscache.
Add a helper checking which mode erofs works in, and twist the code in
preparation for the upcoming fscache mode.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-11-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
... so that it can be used in the following introduced fscache mode.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220425122143.56815-10-jefflexu@linux.alibaba.com
Acked-by: Chao Yu <chao@kernel.org>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Add tracepoints for on-demand read mode. Currently following tracepoints
are added:
OPEN request / COPEN reply
CLOSE request
READ request / CREAD reply
write through anonymous fd
release of anonymous fd
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Acked-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20220425122143.56815-8-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Enable on-demand read mode by adding an optional parameter to the "bind"
command.
On-demand mode will be turned on when this parameter is "ondemand", i.e.
"bind ondemand". Otherwise cachefiles will work in the original mode.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220509074028.74954-7-jefflexu@linux.alibaba.com
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Implement the data plane of on-demand read mode.
The early implementation [1] place the entry to
cachefiles_ondemand_read() in fscache_read(). However, fscache_read()
can only detect if the requested file range is fully cache miss, whilst
we need to notify the user daemon as long as there's a hole inside the
requested file range.
Thus the entry is now placed in cachefiles_prepare_read(). When working
in on-demand read mode, once a hole detected, the read routine will send
a READ request to the user daemon. The user daemon needs to fetch the
data and write it to the cache file. After sending the READ request, the
read routine will hang there, until the READ request is handled by the
user daemon. Then it will retry to read from the same file range. If no
progress encountered, the read routine will fail then.
A new NETFS_SREQ_ONDEMAND flag is introduced to indicate that on-demand
read should be done when a cache miss encountered.
[1] https://lore.kernel.org/all/20220406075612.60298-6-jefflexu@linux.alibaba.com/ #v8
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Acked-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20220425122143.56815-6-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Notify the user daemon that cookie is going to be withdrawn, providing a
hint that the associated anonymous fd can be closed.
Be noted that this is only a hint. The user daemon may close the
associated anonymous fd when receiving the CLOSE request, then it will
receive another anonymous fd when the cookie gets looked up. Or it may
ignore the CLOSE request, and keep writing data through the anonymous
fd. However the next time the cookie gets looked up, the user daemon
will still receive another new anonymous fd.
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Acked-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20220425122143.56815-5-jefflexu@linux.alibaba.com
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
