Commit graph

1,267,977 commits

Author SHA1 Message Date
Liao Chang
622442666d arm64: cpufeatures: Clean up temporary variable to simplify code
Clean up one temporary variable to simplifiy code in capability
detection.

Signed-off-by: Liao Chang <liaochang1@huawei.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20240229105208.456704-1-liaochang1@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2024-03-01 17:35:53 +00:00
Maciej Fijalkowski
cbf996f52c ixgbe: {dis, en}able irqs in ixgbe_txrx_ring_{dis, en}able
Currently routines that are supposed to toggle state of ring pair do not
take care of associated interrupt with queue vector that these rings
belong to. This causes funky issues such as dead interface due to irq
misconfiguration, as per Pavel's report from Closes: tag.

Add a function responsible for disabling single IRQ in EIMC register and
call this as a very first thing when disabling ring pair during xsk_pool
setup. For enable let's reuse ixgbe_irq_enable_queues(). Besides this,
disable/enable NAPI as first/last thing when dealing with closing or
opening ring pair that xsk_pool is being configured on.

Reported-by: Pavel Vazharov <pavel@x3me.net>
Closes: https://lore.kernel.org/netdev/CAJEV1ijxNyPTwASJER1bcZzS9nMoZJqfR86nu_3jFFVXzZQ4NA@mail.gmail.com/
Fixes: 024aa5800f ("ixgbe: added Rx/Tx ring disable/enable functions")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2024-03-01 09:35:19 -08:00
Nathan Chancellor
72165c867f ALSA: hwdep: Move put_user() call out of scoped_guard() in snd_hwdep_control_ioctl()
Clang prior to 17.0.0 has a bug in its asm goto jump scope analysis to
determine that no variables with the cleanup attribute are skipped by an
indirect jump. Instead of only checking the scope of each label that is
a possible target of each asm goto statement, it checks the scope of
every label, which can cause an error when a variable with the cleanup
attribute is used between two asm goto statements with different scopes,
even if they have completely different label targets:

  sound/core/hwdep.c:273:8: error: cannot jump from this asm goto statement to one of its possible targets
                          if (get_user(device, (int __user *)arg))
                              ^
  arch/powerpc/include/asm/uaccess.h:295:5: note: expanded from macro 'get_user'
                    __get_user(x, _gu_addr) :                             \
                    ^
  arch/powerpc/include/asm/uaccess.h:283:2: note: expanded from macro '__get_user'
          __get_user_size_allowed(__gu_val, __gu_addr, __gu_size, __gu_err);      \
          ^
  arch/powerpc/include/asm/uaccess.h:199:3: note: expanded from macro '__get_user_size_allowed'
                  __get_user_size_goto(x, ptr, size, __gus_failed);       \
                  ^
  arch/powerpc/include/asm/uaccess.h:187:10: note: expanded from macro '__get_user_size_goto'
          case 1: __get_user_asm_goto(x, (u8 __user *)ptr, label, "lbz"); break;  \
                  ^
  arch/powerpc/include/asm/uaccess.h:158:2: note: expanded from macro '__get_user_asm_goto'
          asm_volatile_goto(                                      \
          ^
  include/linux/compiler_types.h:366:33: note: expanded from macro 'asm_volatile_goto'
  #define asm_volatile_goto(x...) asm goto(x)
                                  ^
  sound/core/hwdep.c:291:9: note: possible target of asm goto statement
                                  if (put_user(device, (int __user *)arg))
                                      ^
  arch/powerpc/include/asm/uaccess.h:66:5: note: expanded from macro 'put_user'
                    __put_user(x, _pu_addr) : -EFAULT;                    \
                    ^
  arch/powerpc/include/asm/uaccess.h:52:9: note: expanded from macro '__put_user'
                                                                  \
                                                                  ^
  sound/core/hwdep.c:276:4: note: jump bypasses initialization of variable with __attribute__((cleanup))
                          scoped_guard(mutex, &register_mutex) {
                          ^
  include/linux/cleanup.h:169:20: note: expanded from macro 'scoped_guard'
          for (CLASS(_name, scope)(args),                                 \

To avoid this issue, move the put_user() call out of the scoped_guard()
scope, which allows the asm goto scope analysis to see that the variable
with the cleanup attribute will never be skipped by the asm goto
statements.

There should be no functional change because prior to the refactoring,
put_user() was not called under register_mutex, so this call does not
even need to be in the scoped_guard() in the first place.

Fixes: e6684d08cc ("ALSA: hwdep: Use guard() for locking")
Closes: https://github.com/ClangBuiltLinux/linux/issues/2003
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20240301-fix-snd-hwdep-guard-v1-1-6aab033f3f83@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2024-03-01 18:10:57 +01:00
Changhuang Liang
28ecaaa5af riscv: dts: starfive: jh7110: Add camera subsystem nodes
Add camera subsystem nodes for the StarFive JH7110 SoC. They contain the
dphy-rx, csi2rx, camss nodes.

Signed-off-by: Changhuang Liang <changhuang.liang@starfivetech.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
2024-03-01 16:12:26 +00:00
Christian König
216c1282dd drm/amdgpu: use GTT only as fallback for VRAM|GTT
Try to fill up VRAM as well by setting the busy flag on GTT allocations.

This fixes the issue that when VRAM was evacuated for suspend it's never
filled up again unless the application is restarted.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229134003.3688-2-christian.koenig@amd.com
2024-03-01 17:12:26 +01:00
Christian König
cc941c70df drm/ttm: improve idle/busy handling v5
Previously we would never try to move a BO into the preferred placements
when it ever landed in a busy placement since those were considered
compatible.

Rework the whole handling and finally unify the idle and busy handling.
ttm_bo_validate() is now responsible to try idle placement first and then
use the busy placement if that didn't worked.

Drawback is that we now always try the idle placement first for each
validation which might cause some additional CPU overhead on overcommit.

v2: fix kerneldoc warning and coding style
v3: take care of XE as well
v4: keep the ttm_bo_mem_space functionality as it is for now, only add
    new handling for ttm_bo_validate as suggested by Thomas
v5: fix bug pointed out by Matthew

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com> v3
Link: https://patchwork.freedesktop.org/patch/msgid/20240229134003.3688-1-christian.koenig@amd.com
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
2024-03-01 17:11:16 +01:00
Christoph Hellwig
268283244c nbd: use the atomic queue limits API in nbd_set_size
Use queue_limits_start_update / queue_limits_commit_update to update
all the limits in one go and with proper sanity checking.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240229143846.1047223-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-03-01 09:08:22 -07:00
Christoph Hellwig
242a49e5c8 nbd: freeze the queue for queue limits updates
nbd currently updates the logical and physical block sizes as well
as the discard_sectors on a live queue.  Freeze the queue first to
make sure there are not commands in flight that can see torn or
inconsistent limits.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240229143846.1047223-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-03-01 09:08:22 -07:00
Christoph Hellwig
7ea201f2cc nbd: don't clear discard_sectors in nbd_config_put
nbd_config_put currently clears discard_sectors when unusing a device.
This is pretty odd behavior and different from the sector size
configuration which is simply left in places and then reconfigured when
nbd_set_size is as part of configuring the device.  Change nbd_set_size
to clear discard_sectors if discard is not supported so that all the
queue limits changes are handled in one place.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240229143846.1047223-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-03-01 09:08:22 -07:00
Christoph Hellwig
eabf5dfc2d pktcdvd: don't set max_hw_sectors on the underlying device
pktcdvd sets max_hw_sectors on the queue of the underlying device that
it doesn't own (and doesn't reset it ever) since the driver was merged.
This can create all kinds of problems as the underlying driver doesn't
even know about it changing the limit.

As the state purpose is to not create I/Os larger than a single frame,
and pktcdvd never builds bios larger than that, just set REQ_NOMERGE
on the bios it submits so that largers I/Os never get built.

Note: I don't have packet writing hardware, so this is compile tested
only.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240229144408.1047967-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-03-01 09:08:00 -07:00
Yazen Ghannam
7d19eea517 RAS/AMD/FMPM: Add debugfs interface to print record entries
It is helpful to see the saved record entries during run time in
human-readable format. This is useful for testing during module
development. It can also be used by system admins to quickly and easily
see the state of the system.

Provide a sequential file in debugfs to print fields of interest from
the FRU records and their entries.

Don't fail to load the module if the debugfs interface is not available.
This is a convenience feature which does not affect other module
functionality.

The new interface reads the record entries and should hold the mutex.
Expand the mutex code comment to clarify when it should be held.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240301143748.854090-4-yazen.ghannam@amd.com
2024-03-01 16:55:24 +01:00
Yazen Ghannam
838850c508 RAS/AMD/FMPM: Save SPA values
The system physical address (SPA) of an error is not a stable value. It
will change depending on the location of the memory: parts can be
swapped. And it will change depending on memory topology: NUMA nodes
and/or interleaving can be adjusted.

Therefore, the SPA value is not part of the "FRU Memory Poison" record
format. And it will not be saved to persistent storage.

However, the SPA values can be helpful during debug and for system
admins during run time.

Save the SPA values in a separate structure. This is updated when
records are restored and when new errors are saved.

  [ bp: Make error messages more user friendly and add and correct
    comments. ]

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20240301143748.854090-3-yazen.ghannam@amd.com
2024-03-01 16:55:18 +01:00
Borislav Petkov (AMD)
9d2b6fa09d RAS: Export helper to get ras_debugfs_dir
Export a getter instead of the debugfs node directly so that, other
in-tree-only RAS modules can use it.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Link: https://lore.kernel.org/r/20240301143748.854090-2-yazen.ghannam@amd.com
2024-03-01 16:55:10 +01:00
Christoph Hellwig
8e0ef41286 dm: use queue_limits_set
Use queue_limits_set which validates the limits and takes care of
updating the readahead settings instead of directly assigning them to
the queue.  For that make sure all limits are actually updated before
the assignment.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Snitzer <snitzer@kernel.org>
Link: https://lore.kernel.org/r/20240228225653.947152-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-03-01 08:54:42 -07:00
Christoph Hellwig
c1373f1cf4 block: add a queue_limits_stack_bdev helper
Add a small wrapper around blk_stack_limits that allows passing a bdev
for the bottom device and prints an error in case of misaligned
device. The name fits into the new queue limits API and the intent is
to eventually replace disk_stack_limits.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240228225653.947152-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-03-01 08:54:42 -07:00
Christoph Hellwig
631d4efb80 block: add a queue_limits_set helper
Add a small wrapper around queue_limits_commit_update for stacking
drivers that don't want to update existing limits, but set an
entirely new set.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240228225653.947152-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-03-01 08:54:42 -07:00
Chengming Zhou
3dd549a557 mm, slab: remove the corner case of inc_slabs_node()
We already have the inc_slabs_node() after kmem_cache_node->node[node]
initialized in early_kmem_cache_node_alloc(), this special case of
inc_slabs_node() can be removed. Then we don't need to consider the
existence of kmem_cache_node in inc_slabs_node() anymore.

Signed-off-by: Chengming Zhou <chengming.zhou@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-03-01 16:52:14 +01:00
Xiaolei Wang
011568eb31 mm/slab: Fix a kmemleak in kmem_cache_destroy()
For earlier kmem cache creation, slab_sysfs_init() has not been called.
Consequently, kmem_cache_destroy() cannot utilize kobj_type::release to
release the kmem_cache structure. Therefore, tweak kmem_cache_release()
to use slab_kmem_cache_release() for releasing kmem_cache when slab_state
isn't FULL. This will fixes the memory leaks like following:

unreferenced object 0xffff0000c2d87080 (size 128):
   comm "swapper/0", pid 1, jiffies 4294893428
   hex dump (first 32 bytes):
     00 00 00 00 ad 4e ad de ff ff ff ff 6b 6b 6b 6b .....N......kkkk
     ff ff ff ff ff ff ff ff b8 ab 48 89 00 80 ff ff.....H.....
   backtrace (crc 8819d0f6):
     [<ffff80008317a298>] kmemleak_alloc+0xb0/0xc4
     [<ffff8000807e553c>] kmem_cache_alloc_node+0x288/0x3a8
     [<ffff8000807e95f0>] __kmem_cache_create+0x1e4/0x64c
     [<ffff8000807216bc>] kmem_cache_create_usercopy+0x1c4/0x2cc
     [<ffff8000807217e0>] kmem_cache_create+0x1c/0x28
     [<ffff8000819f6278>] arm_v7s_alloc_pgtable+0x1c0/0x6d4
     [<ffff8000819f53a0>] alloc_io_pgtable_ops+0xe8/0x2d0
     [<ffff800084b2d2c4>] arm_v7s_do_selftests+0xe0/0x73c
     [<ffff800080016b68>] do_one_initcall+0x11c/0x7ac
     [<ffff800084a71ddc>] kernel_init_freeable+0x53c/0xbb8
     [<ffff8000831728d8>] kernel_init+0x24/0x144
     [<ffff800080018e98>] ret_from_fork+0x10/0x20

Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Reviewed-by: Chengming Zhou <chengming.zhou@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2024-03-01 16:45:41 +01:00
Josua Mayer
2f9086ef0a arm: dts: marvell: clearfog-gtr-l8: align port numbers with enclosure
Clearfog GTR has an official enclosure with labels for all interfaces.
The "lan" ports on the 8-port switch in device-tree were numbered  in
reverse wrt. enclosure.

Update all device-tree labels to match.

Signed-off-by: Josua Mayer <josua@solid-run.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2024-03-01 16:35:13 +01:00
Josua Mayer
429cc56b8d arm: dts: marvell: clearfog-gtr-l8: add support for second sfp connector
Clearfog GTR L8 has an extra SFP connector on the managed switch port 9.
Add descriptions for both entities along with pinctrl.

Signed-off-by: Josua Mayer <josua@solid-run.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
2024-03-01 16:34:51 +01:00
Ard Biesheuvel
27f2b9fcdd arm64/mm: Avoid ID mapping of kpti flag if it is no longer needed
arm64_use_ng_mappings will be set to 'true' by the early boot code if it
decides to use non-global (nG) attributes for all kernel mappings,
typically when enabling KASLR on a system that does not implement E0PD.

In this case, the G-to-nG update routines are never called, and so there
is no reason to create the writable mapping of the associated status
flag in the ID map.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20240301104046.1234309-6-ardb+git@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2024-03-01 15:25:45 +00:00
Ard Biesheuvel
3137db4c66 arm64/mm: Use generic __pud_free() helper in pud_free() implementation
Commit 0dd4f60a2c ("arm64: mm: Add support for folding PUDs at
runtime") implements specialized PUD alloc/free helpers to allow the
decision whether or not to fold PUDs to be made at runtime when the
number of paging levels is 4 or higher.

Its implementation of pud_free() is based on the generic version that
existed when the patch was first written, but in the meantime, the
freeing of a PUD has become a bit more involved, and so instead of
simply freeing the page, we should invoke the generic __pud_free() that
encapsulates whatever needs doing at this point.

This fixes a reported warning emitted by the page flags
self-diagnostics.

Reported-by: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Ryan Roberts <ryan.roberts@arm.com>
Link: https://lore.kernel.org/r/20240301104046.1234309-5-ardb+git@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2024-03-01 15:25:45 +00:00
Johan Hovold
7a1c6a8bf4 arm64: dts: qcom: sc8280xp-x13s: limit pcie4 link speed
Limit the WiFi PCIe link speed to Gen2 speed (500 MB/s), which is the
speed that the boot firmware has brought up the link at (and that
Windows uses).

This is specifically needed to avoid a large amount of link errors when
restarting the link during boot (but which are currently not reported).

This also appears to fix intermittent failures to download the ath11k
firmware during boot which can be seen when there is a longer delay
between restarting the link and loading the WiFi driver (e.g. when using
full disk encryption).

Fixes: 123b30a756 ("arm64: dts: qcom: sc8280xp-x13s: enable WiFi controller")
Cc: stable@vger.kernel.org      # 6.2
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20240223152124.20042-8-johan+linaro@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2024-03-01 08:53:09 -06:00
Johan Hovold
db8138845c arm64: dts: qcom: sc8280xp-crd: limit pcie4 link speed
Limit the WiFi PCIe link speed to Gen2 speed (500 MB/s), which is the
speed that Windows uses.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20240223152124.20042-7-johan+linaro@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
2024-03-01 08:53:09 -06:00
Lad Prabhakar
0d5a9b5d5d dt-bindings: soc: renesas: renesas-soc: Add pattern for gray-hawk
Add a pattern for the Renesas Gray Hawk Single board (based on the R-Car
V4M SoC).

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240227220930.213703-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2024-03-01 15:41:34 +01:00
Mike Snitzer
6a87a8a258 dm vdo thread-device: rename all methods to reflect vdo-only use
Also moved vdo_init()'s call to vdo_initialize_thread_device_registry
next to other registry initialization.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:26:24 -05:00
Mike Snitzer
82b354ffe2 dm vdo thread-registry: rename all methods to reflect vdo-only use
Otherwise, uds_ prefix is misleading (vdo_ is the new catch-all for
code that is used by vdo-only or _both_ vdo and the indexer code).

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:26:20 -05:00
Mike Snitzer
cb6f8b7500 dm vdo thread-utils: cleanup included headers
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:26:11 -05:00
Mike Snitzer
650e3107bc dm vdo thread-utils: further cleanup of thread functions
Change thread function prefix from "uds_" to "vdo_" and fix
vdo_join_threads() to return void.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:26:07 -05:00
Mike Snitzer
fe6e4ccbe8 dm vdo thread-utils: remove all uds_*_mutex wrappers
Just use mutex_init, mutex_lock and mutex_unlock.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:26:03 -05:00
Mike Snitzer
7f2e494ddd dm vdo thread-utils: push uds_*_cond interface down to indexer
Only used by indexer components. Also return void from
uds_init_cond(), remove uds_destroy_cond(), and fix up
all callers.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:25:58 -05:00
Mike Snitzer
877f36b764 dm vdo: fold thread-cond-var.c into thread-utils
Further cleanup is needed for thread-utils interfaces given many
functions should return void or be removed entirely because they
amount to obfuscation via wrappers.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:25:54 -05:00
Mike Snitzer
8e6333af19 dm vdo indexer: rename uds.h to indexer.h
Also remove unnecessary include from funnel-queue.c.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:25:49 -05:00
Mike Snitzer
c2f54aa2b2 dm vdo: rename uds-threads.[ch] to thread-utils.[ch]
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:25:45 -05:00
Mike Snitzer
eef7cf5e22 dm vdo indexer sparse-cache: cleanup threads_barrier code
Rename 'barrier' to 'threads_barrier', remove useless
uds_destroy_barrier(), return void from remaining methods and
clean up uds_make_sparse_cache() accordingly.

Also remove uds_ prefix from the 2 remaining threads_barrier
functions.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:25:41 -05:00
Mike Snitzer
0593855a83 dm vdo uds-threads: push 'barrier' down to sparse-cache
The sparse-cache is the only user of the 'barrier' data structure,
so just move it private to it.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:25:36 -05:00
Mike Snitzer
2d98aa1780 dm vdo uds-threads: eliminate uds_*_semaphore interfaces
The implementation of thread 'barrier' data structure does not require
overdone private semaphore wrappers.  Also rename the barrier
structure's 'mutex' member (a semaphore) to 'lock'.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:25:32 -05:00
Mike Snitzer
9d87418945 dm vdo: make uds_*_semaphore interface private to uds-threads.c
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:25:23 -05:00
Mike Snitzer
50944062f7 dm vdo block-map: rename page state name from "UDS_FREE" to "FREE"
Only used for log message, but no need for "UDS_" prefix.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01 09:25:16 -05:00
Harshit Mogalapalli
f304f6b443 dm vdo volume-index: fix an assert statement in start_restoring_volume_sub_index()
Use "==" instead of "=" in ASSERT() statement.

Fixes: ef074a31e88e ("dm vdo: implement the volume index")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-01 09:25:09 -05:00
Trond Myklebust
24d92de918 nfsd: Fix NFSv3 atomicity bugs in nfsd_setattr()
The main point of the guarded SETATTR is to prevent races with other
WRITE and SETATTR calls. That requires that the check of the guard time
against the inode ctime be done after taking the inode lock.

Furthermore, we need to take into account the 32-bit nature of
timestamps in NFSv3, and the possibility that files may change at a
faster rate than once a second.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-01 09:12:33 -05:00
Trond Myklebust
6412e44c40 nfsd: Fix a regression in nfsd_setattr()
Commit bb4d53d66e ("NFSD: use (un)lock_inode instead of
fh_(un)lock for file operations") broke the NFSv3 pre/post op
attributes behaviour when doing a SETATTR rpc call by stripping out
the calls to fh_fill_pre_attrs() and fh_fill_post_attrs().

Fixes: bb4d53d66e ("NFSD: use (un)lock_inode instead of fh_(un)lock for file operations")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: NeilBrown <neilb@suse.de>
Message-ID: <20240216012451.22725-1-trondmy@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-01 09:12:33 -05:00
Dai Ngo
5826e09bf3 NFSD: OP_CB_RECALL_ANY should recall both read and write delegations
Add RCA4_TYPE_MASK_WDATA_DLG to ra_bmval bitmask of OP_CB_RECALL_ANY

Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-01 09:12:32 -05:00
Dai Ngo
c5967721e1 NFSD: handle GETATTR conflict with write delegation
If the GETATTR request on a file that has write delegation in effect
and the request attributes include the change info and size attribute
then the request is handled as below:

Server sends CB_GETATTR to client to get the latest change info and file
size. If these values are the same as the server's cached values then
the GETATTR proceeds as normal.

If either the change info or file size is different from the server's
cached values, or the file was already marked as modified, then:

    . update time_modify and time_metadata into file's metadata
      with current time

    . encode GETATTR as normal except the file size is encoded with
      the value returned from CB_GETATTR

    . mark the file as modified

If the CB_GETATTR fails for any reasons, the delegation is recalled
and NFS4ERR_DELAY is returned for the GETATTR.

Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-01 09:12:32 -05:00
Dai Ngo
6487a13b5c NFSD: add support for CB_GETATTR callback
Includes:
   . CB_GETATTR proc for nfs4_cb_procedures[]
   . XDR encoding and decoding function for CB_GETATTR request/reply
   . add nfs4_cb_fattr to nfs4_delegation for sending CB_GETATTR
     and store file attributes from client's reply.

Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-01 09:12:31 -05:00
Chuck Lever
b910544a5a NFSD: Document the phases of CREATE_SESSION
As described in RFC 8881 Section 18.36.4, CREATE_SESSION can be
split into four phases. NFSD's implementation now does it like that
description.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-01 09:12:31 -05:00
Chuck Lever
e4469c6cc6 NFSD: Fix the NFSv4.1 CREATE_SESSION operation
RFC 8881 Section 18.36.4 discusses the implementation of the NFSv4.1
CREATE_SESSION operation. The section defines four phases of
operation.

Phase 2 processes the CREATE_SESSION sequence ID. As a separate
step, Phase 3 evaluates the CREATE_SESSION arguments.

The problem we are concerned with is when phase 2 is successful but
phase 3 fails. The spec language in this case is "No changes are
made to any client records on the server."

RFC 8881 Section 18.35.4 defines a "client record", and it does
/not/ contain any details related to the special CREATE_SESSION
slot. Therefore NFSD is incorrect to skip incrementing the
CREATE_SESSION sequence id when phase 3 (see Section 18.36.4) of
CREATE_SESSION processing fails. In other words, even though NFSD
happens to store the cs_slot in a client record, in terms of the
protocol the slot is logically separate from the client record.

Three complications:

1. The world has moved on since commit 86c3e16cc7 ("nfsd4: confirm
   only on succesful create_session") broke this. So we can't simply
   revert that commit.

2. NFSD's CREATE_SESSION implementation does not cleanly delineate
   the logic of phases 2 and 3. So this won't be a surgical fix.

3. Because of the way it currently handles the CREATE_SESSION slot
   sequence number, nfsd4_create_session() isn't caching error
   responses in the CREATE_SESSION slot. Instead of replaying the
   response cache in those cases, it's executing the transaction
   again.

Reorganize the CREATE_SESSION slot sequence number accounting. This
requires that error responses are appropriately cached in the
CREATE_SESSION slot (once it is found).

Reported-by: Connor Smith <connor.smith@hitachivantara.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218382
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-01 09:12:31 -05:00
Chen Hanxiao
f81040276a nfsd: clean up comments over nfs4_client definition
nfsd fault injection has been deprecated since
commit 9d60d93198 ("Deprecate nfsd fault injection")
and removed by
commit e56dc9e294 ("nfsd: remove fault injection code")

So remove the outdated parts about fault injection.

Signed-off-by: Chen Hanxiao <chenhx.fnst@fujitsu.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-01 09:12:30 -05:00
Chuck Lever
e084ee673c svcrdma: Add Write chunk WRs to the RPC's Send WR chain
Chain RDMA Writes that convey Write chunks onto the local Send
chain. This means all WRs for an RPC Reply are now posted with a
single ib_post_send() call, and there is a single Send completion
when all of these are done. That reduces both the per-transport
doorbell rate and completion rate.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-01 09:12:30 -05:00
Chuck Lever
d2727cefff svcrdma: Post WRs for Write chunks in svc_rdma_sendto()
Refactor to eventually enable svcrdma to post the Write WRs for each
RPC response using the same ib_post_send() as the Send WR (ie, as a
single WR chain).

svc_rdma_result_payload (originally svc_rdma_read_payload) was added
so that the upper layer XDR encoder could identify a range of bytes
to be possibly conveyed by RDMA (if a Write chunk was provided by
the client).

The purpose of commit f6ad77590a ("svcrdma: Post RDMA Writes while
XDR encoding replies") was to post as much of the result payload
outside of svc_rdma_sendto() as possible because svc_rdma_sendto()
used to be called with the xpt_mutex held.

However, since commit ca4faf543a ("SUNRPC: Move xpt_mutex into
socket xpo_sendto methods"), the xpt_mutex is no longer held when
calling svc_rdma_sendto(). Thus, that benefit is no longer an issue.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-03-01 09:12:29 -05:00