Граф коммитов

1106293 Коммитов

Автор SHA1 Сообщение Дата
Anna Schumaker 7c4cd5f4d2 SUNRPC: Add a function for directly setting the xdr page len
We need to do this step during READ_PLUS decoding so that we know pages
are the right length and any extra data has been preserved in the tail.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-23 15:38:29 -04:00
Anna Schumaker 4f5f3b6028 SUNRPC: Introduce xdr_stream_move_subsegment()
I do this by creating an xdr subsegment for the range we will be
operating over. This lets me shift data to the correct place without
potentially overwriting anything already there.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-23 15:38:29 -04:00
Chuck Lever 33ce83ef0b NFS: Replace fs_context-related dprintk() call sites with tracepoints
Contributed as part of the long patch series that converts NFS from
using dprintk to tracepoints for observability.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-23 15:34:40 -04:00
Chuck Lever f67939e4b0 SUNRPC: Replace dprintk() call site in xs_data_ready
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-23 15:34:38 -04:00
Chuck Lever 0701214cd6 SUNRPC: Fail faster on bad verifier
A bad verifier is not a garbage argument, it's an authentication
failure. Retrying it doesn't make the problem go away, and delays
upper layer recovery steps.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-23 15:34:34 -04:00
Jeff Layton 69d966510d nfs: only issue commit in DIO codepath if we have uncommitted data
Currently, we try to determine whether to issue a commit based on
nfs_write_need_commit which looks at the current verifier. In the case
where we got a short write and then tried to follow it up with one that
failed, the verifier can't be trusted.

What we really want to know is whether the pgio request had any
successful writes that came back as UNSTABLE. Add a new flag to the pgio
request, and use that to indicate that we've had a successful unstable
write. Only issue a commit if that flag is set.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-23 15:28:59 -04:00
Jeff Layton 55051c0ced nfs: always check dreq->error after a commit
When the client gets back a short DIO write, it will then attempt to
issue another write to finish the DIO request. If that write then fails
(as is often the case in an -ENOSPC situation), then we still may need
to issue a COMMIT if the earlier short write was unstable. If that COMMIT
then succeeds, then we don't want the client to reschedule the write
requests, and to instead just return a short write. Otherwise, we can
end up looping over the same DIO write forever.

Always consult dreq->error after a successful RPC, even when the flag
state is not NFS_ODIRECT_DONE.

Link: https://bugzilla.redhat.com/show_bug.cgi?id=2028370
Reported-by: Boyang Xue <bxue@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-23 15:28:59 -04:00
Jeff Layton 8efc4bbe84 nfs: add new nfs_direct_req tracepoint events
Add some new tracepoints to the DIO write code.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-23 15:28:59 -04:00
Trond Myklebust ba8ec7a607 SUNRPC: Shrink size of struct rpc_task
Move the field 'tk_rpc_status' so that we eliminate a 4 byte hole in the
structure.
For x86_64, this shrinks the size of the struct by 8 bytes.

'pahole' output before the change:
        /* size: 232, cachelines: 4, members: 27 */
        /* sum members: 222, holes: 1, sum holes: 4 */
        /* sum bitfield members: 8 bits (1 bytes) */
        /* padding: 5 */
        /* last cacheline: 40 bytes */

'pahole' output after the change:
        /* size: 224, cachelines: 4, members: 27 */
        /* padding: 1 */
        /* last cacheline: 32 bytes */

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-23 14:47:28 -04:00
Trond Myklebust 51fd2eb52c NFSv4: Fix races in the legacy idmapper upcall
nfs_idmap_instantiate() will cause the process that is waiting in
request_key_with_auxdata() to wake up and exit. If there is a second
process waiting for the idmap->idmap_mutex, then it may wake up and
start a new call to request_key_with_auxdata(). If the call to
idmap_pipe_downcall() from the first process has not yet finished
calling nfs_idmap_complete_pipe_upcall_locked(), then we may end up
triggering the WARN_ON_ONCE() in nfs_idmap_prepare_pipe_upcall().

The fix is to ensure that we clear idmap->idmap_upcall_data before
calling nfs_idmap_instantiate().

Fixes: e9ab41b620 ("NFSv4: Clean up the legacy idmapper upcall")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-13 17:46:52 -04:00
Anna Schumaker 940261a195 NFS: Allow setting rsize / wsize to a multiple of PAGE_SIZE
Previously, we required this to value to be a power of 2 for UDP related
reasons. This patch keeps the power of 2 rule for UDP but allows more
flexibility for TCP and RDMA.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-12 10:53:10 -04:00
Dan Aloni f1bafa7375 sunrpc: fix expiry of auth creds
Before this commit, with a large enough LRU of expired items (100), the
loop skipped all the expired items and was entirely ineffectual in
trimming the LRU list.

Fixes: 95cd623250 ('SUNRPC: Clean up the AUTH cache code')
Signed-off-by: Dan Aloni <dan.aloni@vastdata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-12 10:53:10 -04:00
Ian Kent 8b4e87a1d6 nfs: fix port value parsing
The valid values of nfs options port and mountport are 0 to USHRT_MAX.

The fs parser will return a fail for port values that are negative
and the sloppy option handling then returns success.

But the sloppy option handling is meant to return success for invalid
options not valid options with invalid values.

Restricting the sloppy option override to handle failure returns for
invalid options only is sufficient to resolve this problem.

Changes:

v2: utilize the return value from fs_parse() to resolve this problem
    instead of changing the parameter definitions.

Suggested-by: Trond Myklebust <trondmy@hammerspace.com>
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-12 10:53:10 -04:00
Fabio M. De Francesco c77c738c37 nfs: Replace kmap() with kmap_local_page()
The use of kmap() is being deprecated in favor of kmap_local_page().

With kmap_local_page(), the mapping is per thread, CPU local and not
globally visible. Furthermore, the mapping can be acquired from any context
(including interrupts).

Therefore, use kmap_local_page() in nfs_do_filldir() because this mapping
is per thread, CPU local, and not globally visible.

Suggested-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-12 10:06:18 -04:00
ChenXiaoSong 064109db53 NFS: remove redundant code in nfs_file_write()
filemap_fdatawait_range() will always return 0, after patch 6c984083ec
("NFS: Use of mapping_set_error() results in spurious errors"), it will not
save the wb err in struct address_space->flags:

  result = filemap_fdatawait_range(file->f_mapping, ...) = 0
    filemap_check_errors(mapping) = 0
      test_bit(..., &mapping->flags) // flags is 0

Signed-off-by: ChenXiaoSong <chenxiaosong2@huawei.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-12 10:05:24 -04:00
Christoph Hellwig f931d8374c nfs/blocklayout: refactor block device opening
Deduplicate the helpers to open a device node by passing a name
prefix argument and using the same helper for both kinds of paths.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-12 10:05:21 -04:00
Trond Myklebust 7ccafd4b2b NFSv4.1: Handle NFS4ERR_DELAY replies to OP_SEQUENCE correctly
Don't assume that the NFS4ERR_DELAY means that the server is processing
this slot id.

Fixes: 3453d5708b ("NFSv4.1: Avoid false retries when RPC calls are interrupted")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-12 09:54:04 -04:00
Trond Myklebust f07a5d2427 NFSv4.1: Don't decrease the value of seq_nr_highest_sent
When we're trying to figure out what the server may or may not have seen
in terms of request numbers, do not assume that requests with a larger
number were missed, just because we saw a reply to a request with a
smaller number.

Fixes: 3453d5708b ("NFSv4.1: Avoid false retries when RPC calls are interrupted")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-12 09:53:45 -04:00
Trond Myklebust 6ca0a6f834 NFS: Fix case insensitive renames
For filesystems that are case insensitive and case preserving, we need
to be able to rename from one case folded variant of the filename to
another.
Currently, if we have looked up the target filename before the call to
rename, then we may have a hashed dentry with that target name in the
dcache, causing the vfs to optimise away the rename.
To avoid that, let's drop the target dentry, and leave it to the server
to optimise away the rename if that is the correct thing to do.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-10 19:00:53 -04:00
Trond Myklebust 431794e67e pNFS/files: Handle RDMA connection errors correctly
The RPC/RDMA driver will return -EPROTO and -ENODEV as connection errors
under certain circumstances. Make sure that we handle them correctly and
avoid cycling forever in a LAYOUTGET/LAYOUTRETURN loop.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-10 19:00:53 -04:00
Trond Myklebust 7836d75467 pNFS/flexfiles: Report RDMA connection errors to the server
The RPC/RDMA driver will return -EPROTO and -ENODEV as connection errors
under certain circumstances. Make sure that we handle them and report
them to the server. If not, we can end up cycling forever in a
LAYOUTGET/LAYOUTRETURN loop.

Fixes: a12f996d34 ("NFSv4/pNFS: Use connections to a DS that are all of the same protocol family")
Cc: stable@vger.kernel.org # 5.11.x
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-10 19:00:53 -04:00
Trond Myklebust 9597152d98 Revert "pNFS: nfs3_set_ds_client should set NFS_CS_NOPING"
This reverts commit c6eb58435b.
If a transport is down, then we want to fail over to other transports if
they are listed in the GETDEVICEINFO reply.

Fixes: c6eb58435b ("pNFS: nfs3_set_ds_client should set NFS_CS_NOPING")
Cc: stable@vger.kernel.org # 5.11.x
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-10 19:00:53 -04:00
Trond Myklebust 4b8dbdfbc5 SUNRPC: Fix an RPC/RDMA performance regression
Use the standard gfp mask instead of using GFP_NOWAIT. The latter causes
issues when under memory pressure.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2022-07-10 19:00:53 -04:00
Linus Torvalds 32346491dd Linux 5.19-rc6 2022-07-10 14:40:51 -07:00
Linus Torvalds 24f4b40ec2 Merge branch 'hot-fixes' (fixes for rc6)
This is a collection of three fixes for small annoyances.

Two of these are already pending in other trees, but I really don't want
to release another -rc with these issues pending, so I picked up the
patches for these things directly.  We'll end up with duplicate commits
eventually, I prefer that over having these issues pending.

The third one is just me getting rid of another BUG_ON() just because it
was reported and I dislike those things so much.

* merge 'hot-fixes' branch:
  ida: don't use BUG_ON() for debugging
  drm/aperture: Run fbdev removal before internal helpers
  ptrace: fix clearing of JOBCTL_TRACED in ptrace_unfreeze_traced()
2022-07-10 14:26:49 -07:00
Linus Torvalds fc82bbf4de ida: don't use BUG_ON() for debugging
This is another old BUG_ON() that just shouldn't exist (see also commit
a382f8fee42c: "signal handling: don't use BUG_ON() for debugging").

In fact, as Matthew Wilcox points out, this condition shouldn't really
even result in a warning, since a negative id allocation result is just
a normal allocation failure:

  "I wonder if we should even warn here -- sure, the caller is trying to
   free something that wasn't allocated, but we don't warn for
   kfree(NULL)"

and goes on to point out how that current error check is only causing
people to unnecessarily do their own index range checking before freeing
it.

This was noted by Itay Iellin, because the bluetooth HCI socket cookie
code does *not* do that range checking, and ends up just freeing the
error case too, triggering the BUG_ON().

The HCI code requires CAP_NET_RAW, and seems to just result in an ugly
splat, but there really is no reason to BUG_ON() here, and we have
generally striven for allocation models where it's always ok to just do

    free(alloc());

even if the allocation were to fail for some random reason (usually
obviously that "random" reason being some resource limit).

Fixes: 88eca0207c ("ida: simplified functions for id allocation")
Reported-by: Itay Iellin <ieitayie@gmail.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-10 13:55:49 -07:00
Linus Torvalds 952c53cd35 dmaengine fixes for v5.19
Core:
  - Revert verification of DMA_INTERRUPT capability as that was incorrect
 
 Bunch of driver fixes for:
  - ti: refcount and put_device leak
  - qcom_bam: runtime pm overflow
  - idxd: force wq context cleanup and call idxd_enable_system_pasid() on
    success
  - dw-axi-dmac: RMW on channel suspend register
  - imx-sdma: restart cyclic channel when enabled
  - at_xdma: error handling for at_xdmac_alloc_desc
  - pl330: lockdep warning
  - lgm: error handling path in probe
  - allwinner: Fix min/max typo in binding
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Merge tag 'dmaengine-fix-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine

Pull dmaengine fixes from Vinod Koul:
 "One core fix for DMA_INTERRUPT and rest driver fixes.

  Core:

   - Revert verification of DMA_INTERRUPT capability as that was
     incorrect

  Bunch of driver fixes for:

   - ti: refcount and put_device leak

   - qcom_bam: runtime pm overflow

   - idxd: force wq context cleanup and call idxd_enable_system_pasid()
     on success

   - dw-axi-dmac: RMW on channel suspend register

   - imx-sdma: restart cyclic channel when enabled

   - at_xdma: error handling for at_xdmac_alloc_desc

   - pl330: lockdep warning

   - lgm: error handling path in probe

   - allwinner: Fix min/max typo in binding"

* tag 'dmaengine-fix-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
  dt-bindings: dma: allwinner,sun50i-a64-dma: Fix min/max typo
  dmaengine: lgm: Fix an error handling path in intel_ldma_probe()
  dmaengine: pl330: Fix lockdep warning about non-static key
  dmaengine: idxd: Only call idxd_enable_system_pasid() if succeeded in enabling SVA feature
  dmaengine: at_xdma: handle errors of at_xdmac_alloc_desc() correctly
  dmaengine: imx-sdma: only restart cyclic channel when enabled
  dmaengine: dw-axi-dmac: Fix RMW on channel suspend register
  dmaengine: idxd: force wq context cleanup on device disable path
  dmaengine: qcom: bam_dma: fix runtime PM underflow
  dmaengine: imx-sdma: Allow imx8m for imx7 FW revs
  dmaengine: Revert "dmaengine: add verification of DMA_INTERRUPT capability for dmatest"
  dmaengine: ti: Add missing put_device in ti_dra7_xbar_route_allocate
  dmaengine: ti: Fix refcount leak in ti_dra7_xbar_route_allocate
2022-07-10 11:23:01 -07:00
Linus Torvalds 5867f3b88b Staging driver fix for 5.19-rc6
Here is a single staging driver fix for a reported problem that showed
 up in 5.19-rc1 in the wlan-ng driver.  It has been in linux-next for a
 week with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fix from Greg KH:
 "Here is a single staging driver fix for a reported problem that showed
  up in 5.19-rc1 in the wlan-ng driver. It has been in linux-next for a
  week with no reported problems"

* tag 'staging-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging/wlan-ng: get the correct struct hfa384x in work callback
2022-07-10 09:51:56 -07:00
Linus Torvalds b41362fdf2 Char/Misc driver fixes for 5.19-rc6
Here are 4 small char/misc driver fixes for 5.19-rc6 to resolve some
 reported issues.  They only affect 2 drivers:
 	- rtsx_usb: fix for of-reported DMA warning error, the driver
 	  was handling memory buffers in odd ways, it has now been fixed
 	  up to be much simpler and correct by Shuah.
 	- at25 eeprom driver bugfix for reported problem
 
 All of these have been in linux-next for a week with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are four small char/misc driver fixes for 5.19-rc6 to resolve
  some reported issues. They only affect two drivers:

   - rtsx_usb: fix for of-reported DMA warning error, the driver was
     handling memory buffers in odd ways, it has now been fixed up to be
     much simpler and correct by Shuah.

   - at25 eeprom driver bugfix for reported problem

  All of these have been in linux-next for a week with no reported
  problems"

* tag 'char-misc-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  misc: rtsx_usb: set return value in rsp_buf alloc err path
  misc: rtsx_usb: use separate command and response buffers
  misc: rtsx_usb: fix use of dma mapped buffer for usb bulk transfer
  eeprom: at25: Rework buggy read splitting
2022-07-10 09:45:29 -07:00
Linus Torvalds d9919d43cb o_uring-5.19-2022-07-09
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Merge tag 'io_uring-5.19-2022-07-09' of git://git.kernel.dk/linux-block

Pull io_uring fix from Jens Axboe:
 "A single fix for an issue that came up yesterday that we should plug
  for -rc6.

  This is a regression introduced in this cycle"

* tag 'io_uring-5.19-2022-07-09' of git://git.kernel.dk/linux-block:
  io_uring: check that we have a file table when allocating update slots
2022-07-10 09:14:54 -07:00
Linus Torvalds 2fbd36dfae Kbuild fixes for v5.19 (3rd)
- Adjust gen_compile_commands.py to the format change of *.mod files
 
  - Remove unused macro in scripts/Makefile.modinst
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Merge tag 'kbuild-fixes-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Adjust gen_compile_commands.py to the format change of *.mod files

 - Remove unused macro in scripts/Makefile.modinst

* tag 'kbuild-fixes-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: remove unused cmd_none in scripts/Makefile.modinst
  gen_compile_commands: handle multiple lines per .mod file
2022-07-10 08:59:02 -07:00
Linus Torvalds 2b9b31cedb IRQ urgent fixes by way of Marc Zygnier:
- Gracefully handle failure to request MMIO resources in the GICv3 driver
 
  - Make a static key static in the Apple AIC driver
 
  - Fix the Xilinx intc driver dependency on OF_ADDRESS
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Merge tag 'irq_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Borislav Petkov:

 - Gracefully handle failure to request MMIO resources in the GICv3
   driver

 - Make a static key static in the Apple AIC driver

 - Fix the Xilinx intc driver dependency on OF_ADDRESS

* tag 'irq_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/apple-aic: Make symbol 'use_fast_ipi' static
  irqchip/xilinx: Add explicit dependency on OF_ADDRESS
  irqchip/gicv3: Handle resource request failure consistently
2022-07-10 08:52:12 -07:00
Linus Torvalds 74a0032b85 - Prepare for and clear .brk early in order to address XenPV guests
failures where the hypervisor verifies page tables and uninitialized
 data in that range leads to bogus failures in those checks
 
 - Add any potential setup_data entries supplied at boot to the identity
 pagetable mappings to prevent kexec kernel boot failures. Usually, this
 is not a problem for the normal kernel as those mappings are part of
 the initially mapped 2M pages but if kexec gets to allocate the second
 kernel somewhere else, those setup_data entries need to be mapped there
 too.
 
 - Fix objtool not to discard text references from the __tracepoints
 section so that ENDBR validation still works
 
 - Correct the setup_data types limit as it is user-visible, before 5.19
 releases
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Merge tag 'x86_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Prepare for and clear .brk early in order to address XenPV guests
   failures where the hypervisor verifies page tables and uninitialized
   data in that range leads to bogus failures in those checks

 - Add any potential setup_data entries supplied at boot to the identity
   pagetable mappings to prevent kexec kernel boot failures. Usually,
   this is not a problem for the normal kernel as those mappings are
   part of the initially mapped 2M pages but if kexec gets to allocate
   the second kernel somewhere else, those setup_data entries need to be
   mapped there too.

 - Fix objtool not to discard text references from the __tracepoints
   section so that ENDBR validation still works

 - Correct the setup_data types limit as it is user-visible, before 5.19
   releases

* tag 'x86_urgent_for_v5.19_rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Fix the setup data types max limit
  x86/ibt, objtool: Don't discard text references from tracepoint section
  x86/compressed/64: Add identity mappings for setup_data entries
  x86: Fix .brk attribute in linker script
  x86: Clear .brk area at early boot
  x86/xen: Use clear_bss() for Xen PV guests
2022-07-10 08:43:52 -07:00
Masahiro Yamada f5a4618587 kbuild: remove unused cmd_none in scripts/Makefile.modinst
Commit 65ce9c3832 ("kbuild: move module strip/compression code into
scripts/Makefile.modinst") added this unused code.

Perhaps, I thought cmd_none was useful for CONFIG_MODULE_COMPRESS_NONE,
but I did not use it after all.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
2022-07-10 21:25:15 +09:00
Borislav Petkov cb8a4beac3 x86/boot: Fix the setup data types max limit
Commit in Fixes forgot to change the SETUP_TYPE_MAX definition which
contains the highest valid setup data type.

Correct that.

Fixes: 5ea98e01ab ("x86/boot: Add Confidential Computing type to setup_data")
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/ddba81dd-cc92-699c-5274-785396a17fb5@zytor.com
2022-07-10 11:17:40 +02:00
Linus Torvalds b1c428b6c3 Two I2C driver bugfixes preventing resource leaks
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Merge tag 'i2c-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Two I2C driver bugfixes preventing resource leaks"

* tag 'i2c-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: cadence: Unregister the clk notifier in error path
  i2c: piix4: Fix a memory leak in the EFCH MMIO support
2022-07-09 11:20:15 -07:00
Thomas Zimmermann 84499c5d22 drm/aperture: Run fbdev removal before internal helpers
Always run fbdev removal first to remove simpledrm via sysfb_disable().
This clears the internal state.

The later call to drm_aperture_detach_drivers() then does nothing.
Otherwise, with drm_aperture_detach_drivers() running first, the call to
sysfb_disable() uses inconsistent state.

Example backtrace show below:

  BUG: KASAN: use-after-free in device_del+0x79/0x5f0
  Read of size 8 at addr ffff888108185050 by task systemd-udevd/311
  CPU: 0 PID: 311 Comm: systemd-udevd Tainted: G            E     5.19.0-rc2-1-default+ #1689
  Hardware name: HP ProLiant DL120 G7, BIOS J01 04/21/2011
  Call Trace:
    device_del+0x79/0x5f0
    platform_device_del.part.0+0x19/0xe0
    platform_device_unregister+0x1c/0x30
    sysfb_disable+0x2d/0x70
    remove_conflicting_framebuffers+0x1c/0xf0
    remove_conflicting_pci_framebuffers+0x130/0x1a0
    drm_aperture_remove_conflicting_pci_framebuffers+0x86/0xb0
    mgag200_pci_probe+0x2d/0x140 [mgag200]

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Fixes: 873eb3b118 ("fbdev: Disable sysfb device registration when removing conflicting FBs")
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Cc: Changcheng Deng <deng.changcheng@zte.com.cn>
Reviewed-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-09 11:12:05 -07:00
Sven Schnelle de2a34771f ptrace: fix clearing of JOBCTL_TRACED in ptrace_unfreeze_traced()
CI reported the following splat while running the strace testsuite:

  WARNING: CPU: 1 PID: 3570031 at kernel/ptrace.c:272 ptrace_check_attach+0x12e/0x178
  CPU: 1 PID: 3570031 Comm: strace Tainted: G           OE     5.19.0-20220624.rc3.git0.ee819a77d4e7.300.fc36.s390x #1
  Hardware name: IBM 3906 M04 704 (z/VM 7.1.0)
  Call Trace:
   [<00000000ab4b645a>] ptrace_check_attach+0x132/0x178
  ([<00000000ab4b6450>] ptrace_check_attach+0x128/0x178)
   [<00000000ab4b6cde>] __s390x_sys_ptrace+0x86/0x160
   [<00000000ac03fcec>] __do_syscall+0x1d4/0x200
   [<00000000ac04e312>] system_call+0x82/0xb0
  Last Breaking-Event-Address:
   [<00000000ab4ea3c8>] wait_task_inactive+0x98/0x190

This is because JOBCTL_TRACED is set, but the task is not in TASK_TRACED
state. Caused by ptrace_unfreeze_traced() which does:

	task->jobctl &= ~TASK_TRACED

but it should be:

	task->jobctl &= ~JOBCTL_TRACED

Fixes: 31cae1eaae ("sched,signal,ptrace: Rework TASK_TRACED, TASK_STOPPED state")
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Tested-by: Alexander Gordeev <agordeev@linux.ibm.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-09 11:06:19 -07:00
Linus Torvalds d9cdc3b125 powerpc fixes for 5.19 #5
- On Power8 bare metal, fix creation of RNG platform devices, which are needed
    for the /dev/hwrng driver to probe correctly.
 
 Thanks to: Jason A. Donenfeld, Sachin Sant.
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Merge tag 'powerpc-5.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fix from Michael Ellerman:

 - On Power8 bare metal, fix creation of RNG platform devices, which are
   needed for the /dev/hwrng driver to probe correctly.

Thanks to Jason A. Donenfeld, and Sachin Sant.

* tag 'powerpc-5.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/powernv: delay rng platform device creation until later in boot
2022-07-09 10:34:08 -07:00
Jens Axboe d785a773be io_uring: check that we have a file table when allocating update slots
If IORING_FILE_INDEX_ALLOC is set asking for an allocated slot, the
helper doesn't check if we actually have a file table or not. The non
alloc path does do that correctly, and returns -ENXIO if we haven't set
one up.

Do the same for the allocated path, avoiding a NULL pointer dereference
when trying to find a free bit.

Fixes: a7c41b4687 ("io_uring: let IORING_OP_FILES_UPDATE support choosing fixed file slots")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-09 07:02:10 -06:00
Linus Torvalds e5524c2a1f fscache fixes
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Merge tag 'fscache-fixes-20220708' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull fscache fixes from David Howells:

 - Fix a check in fscache_wait_on_volume_collision() in which the
   polarity is reversed. It should complain if a volume is still marked
   acquisition-pending after 20s, but instead complains if the mark has
   been cleared (ie. the condition has cleared).

   Also switch an open-coded test of the ACQUIRE_PENDING volume flag to
   use the helper function for consistency.

 - Not a fix per se, but neaten the code by using a helper to check for
   the DROPPED state.

 - Fix cachefiles's support for erofs to only flush requests associated
   with a released control file, not all requests.

 - Fix a race between one process invalidating an object in the cache
   and another process trying to look it up.

* tag 'fscache-fixes-20220708' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
  fscache: Fix invalidation/lookup race
  cachefiles: narrow the scope of flushed requests when releasing fd
  fscache: Introduce fscache_cookie_is_dropped()
  fscache: Fix if condition in fscache_wait_on_volume_collision()
2022-07-08 16:08:48 -07:00
Linus Torvalds 525496a030 ACPI fixes for 5.19-rc6
- Prevent _CPC from being used if the platform firmware does not
    confirm CPPC v2 support via _OSC (Mario Limonciello).
 
  - Allow systems with X86_FEATURE_CPPC set to use _CPC even if CPPC
    support cannot be agreed on via _OSC (Mario Limonciello).
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Merge tag 'acpi-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fixes from Rafael Wysocki:
 "These fix two recent regressions related to CPPC support.

  Specifics:

   - Prevent _CPC from being used if the platform firmware does not
     confirm CPPC v2 support via _OSC (Mario Limonciello)

   - Allow systems with X86_FEATURE_CPPC set to use _CPC even if CPPC
     support cannot be agreed on via _OSC (Mario Limonciello)"

* tag 'acpi-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: CPPC: Don't require _OSC if X86_FEATURE_CPPC is supported
  ACPI: CPPC: Only probe for _CPC if CPPC v2 is acked
2022-07-08 13:05:56 -07:00
Linus Torvalds 3784fad934 Power management fixes for 5.19-rc6
- Fix NULL pointer dereference related to printing a diagnostic
    message in the exynos-bus devfreq driver (Christian Marangi).
 
  - Fix race condition in the runtime PM framework which in some
    cases may cause a supplier device to be suspended when its
    consumer is still active (Rafael Wysocki).
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Merge tag 'pm-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fixes from Rafael Wysocki:
 "These fix a NULL pointer dereference in a devfreq driver and a runtime
  PM framework issue that may cause a supplier device to be suspended
  before its consumer.

  Specifics:

   - Fix NULL pointer dereference related to printing a diagnostic
     message in the exynos-bus devfreq driver (Christian Marangi)

   - Fix race condition in the runtime PM framework which in some cases
     may cause a supplier device to be suspended when its consumer is
     still active (Rafael Wysocki)"

* tag 'pm-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / devfreq: exynos-bus: Fix NULL pointer dereference
  PM: runtime: Fix supplier device management during consumer probe
  PM: runtime: Redefine pm_runtime_release_supplier()
2022-07-08 13:01:04 -07:00
Linus Torvalds 483e4a1d83 cxl fixes for 5.19-rc6
- Update MAINTAINERS for Ben's email
 
 - Fix cleanup of port devices on failure to probe driver
 
 - Fix endianness in get/set LSA mailbox command structures
 
 - Fix memregion_free() fallback definition
 
 - Fix missing variable payload checks in CXL cmd size validation
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Merge tag 'cxl-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull cxl fixes from Vishal Verma:

 - Update MAINTAINERS for Ben's email

 - Fix cleanup of port devices on failure to probe driver

 - Fix endianness in get/set LSA mailbox command structures

 - Fix memregion_free() fallback definition

 - Fix missing variable payload checks in CXL cmd size validation

* tag 'cxl-fixes-for-5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
  cxl/mbox: Fix missing variable payload checks in cmd size validation
  memregion: Fix memregion_free() fallback definition
  cxl/mbox: Use __le32 in get,set_lsa mailbox structures
  cxl/core: Use is_endpoint_decoder
  cxl: Fix cleanup of port devices on failure to probe driver.
  MAINTAINERS: Update Ben's email address
2022-07-08 12:55:25 -07:00
Linus Torvalds f5645edf6c IOMMU Fixes for Linux v5.19-rc5
Including:
 
 	- Patch for the Intel VT-d driver to fix device setup failures
 	  when the PASID table is shared
 
 	- Fix for Intel VT-d device hot-add failure due to wrong device
 	  notifier order
 
 	- Remove the old IOMMU mailing list from the MAINTAINERS file
 	  now that it has been retired
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Merge tag 'iommu-fixes-v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - fix device setup failures in the Intel VT-d driver when the PASID
   table is shared

 - fix Intel VT-d device hot-add failure due to wrong device notifier
   order

 - remove the old IOMMU mailing list from the MAINTAINERS file now that
   it has been retired

* tag 'iommu-fixes-v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  MAINTAINERS: Remove iommu@lists.linux-foundation.org
  iommu/vt-d: Fix RID2PASID setup/teardown failure
  iommu/vt-d: Fix PCI bus rescan device hot add
2022-07-08 12:49:00 -07:00
Linus Torvalds 2b93fe647c gpio fixes for v5.19-rc6
- fix a build error in gpio-vf610
 - fix a null-pointer dereference in the GPIO character device code
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Merge tag 'gpio-fixes-for-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix a build error in gpio-vf610

 - fix a null-pointer dereference in the GPIO character device code

* tag 'gpio-fixes-for-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpiolib: cdev: fix null pointer dereference in linereq_free()
  gpio: vf610: fix compilation error
2022-07-08 12:39:52 -07:00
Rafael J. Wysocki fe7c758c07 Merge branch 'pm-core'
Merge a runtime PM framework cleanup and fix related to device links.

* pm-core:
  PM: runtime: Fix supplier device management during consumer probe
  PM: runtime: Redefine pm_runtime_release_supplier()
2022-07-08 20:38:51 +02:00
Linus Torvalds a471da3100 block-5.19-2022-07-08
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Merge tag 'block-5.19-2022-07-08' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
 "NVMe pull request with another id quirk addition, and a tracing fix"

* tag 'block-5.19-2022-07-08' of git://git.kernel.dk/linux-block:
  nvme: use struct group for generic command dwords
  nvme-pci: phison e16 has bogus namespace ids
2022-07-08 11:32:23 -07:00
Linus Torvalds 29837019d5 io_uring-5.19-2022-07-08
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Merge tag 'io_uring-5.19-2022-07-08' of git://git.kernel.dk/linux-block

Pull io_uring tweak from Jens Axboe:
 "Just a minor tweak to an addition made in this release cycle: padding
  a 32-bit value that's in a 64-bit union to avoid any potential
  funkiness from that"

* tag 'io_uring-5.19-2022-07-08' of git://git.kernel.dk/linux-block:
  io_uring: explicit sqe padding for ioctl commands
2022-07-08 11:25:01 -07:00
Linus Torvalds 086ff84617 fbdev fixes and updates for kernel v5.19-rc6:
fbcon now prevents switching to screen resolutions which are smaller
 than the font size, and prevents enabling a font which is bigger than
 the current screen resolution. This fixes vmalloc-out-of-bounds accesses
 found by KASAN.
 
 Guiling Deng fixed a bug where the centered fbdev logo wasn't displayed
 correctly if the screen size matched the logo size.
 
 Hsin-Yi Wang provided a patch to include errno.h to fix build when
 CONFIG_OF isn't enabled.
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Merge tag 'for-5.19/fbdev-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev fixes from Helge Deller:

 - fbcon now prevents switching to screen resolutions which are smaller
   than the font size, and prevents enabling a font which is bigger than
   the current screen resolution. This fixes vmalloc-out-of-bounds
   accesses found by KASAN.

 - Guiling Deng fixed a bug where the centered fbdev logo wasn't
   displayed correctly if the screen size matched the logo size.

 - Hsin-Yi Wang provided a patch to include errno.h to fix build when
   CONFIG_OF isn't enabled.

* tag 'for-5.19/fbdev-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbcon: Use fbcon_info_from_console() in fbcon_modechange_possible()
  fbmem: Check virtual screen sizes in fb_set_var()
  fbcon: Prevent that screen size is smaller than font size
  fbcon: Disallow setting font bigger than screen size
  video: of_display_timing.h: include errno.h
  fbdev: fbmem: Fix logo center image dx issue
2022-07-08 11:03:26 -07:00