Commit Graph

950087 Commits

Author SHA1 Message Date
Darrick J. Wong
fe341eb151 xfs: ensure that fpunch, fcollapse, and finsert operations are aligned to rt extent size
Make sure that any fallocate operation that requires the range to be
block-aligned also checks that the range is aligned to the realtime
extent size.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-09-15 20:52:42 -07:00
Darrick J. Wong
2a6ca4baed xfs: make sure the rt allocator doesn't run off the end
There's an overflow bug in the realtime allocator.  If the rt volume is
large enough to handle a single allocation request that is larger than
the maximum bmap extent length and the rt bitmap ends exactly on a
bitmap block boundary, it's possible that the near allocator will try to
check the freeness of a range that extends past the end of the bitmap.
This fails with a corruption error and shuts down the fs.

Therefore, constrain maxlen so that the range scan cannot run off the
end of the rt bitmap.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-09-15 20:52:42 -07:00
Zheng Bin
0f4ec0f157 xfs: Remove unneeded semicolon
Fixes coccicheck warning:

fs/xfs/xfs_icache.c:1214:2-3: Unneeded semicolon

Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:42 -07:00
Darrick J. Wong
5ffce3cc22 xfs: force the log after remapping a synchronous-writes file
Commit 5833112df7e9 tried to make it so that a remap operation would
force the log out to disk if the filesystem is mounted with mandatory
synchronous writes.  Unfortunately, that commit failed to handle the
case where the inode or the file descriptor require mandatory
synchronous writes.

Refactor the check into into a helper that will look for all three
conditions, and now we can treat reflink just like any other synchronous
write.

Fixes: 5833112df7e9 ("xfs: reflink should force the log out if mounted with wsync")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-09-15 20:52:42 -07:00
Carlos Maiolino
e01b7eed5d xfs: Convert xfs_attr_sf macros to inline functions
xfs_attr_sf_totsize() requires access to xfs_inode structure, so, once
xfs_attr_shortform_addname() is its only user, move it to xfs_attr.c
instead of playing with more #includes.

Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:42 -07:00
Carlos Maiolino
c418dbc980 xfs: Use variable-size array for nameval in xfs_attr_sf_entry
nameval is a variable-size array, so, define it as it, and remove all
the -1 magic number subtractions

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:42 -07:00
Carlos Maiolino
47e6cc1000 xfs: Remove typedef xfs_attr_shortform_t
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:42 -07:00
Carlos Maiolino
6337c84466 xfs: remove typedef xfs_attr_sf_entry_t
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:41 -07:00
Carlos Maiolino
8ca79df85b xfs: Remove kmem_zalloc_large()
This patch aims to replace kmem_zalloc_large() with global kernel memory
API. So, all its callers are now using kvzalloc() directly, so kmalloc()
fallsback to vmalloc() automatically.

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:41 -07:00
Darrick J. Wong
29887a2271 xfs: enable big timestamps
Enable the big timestamp feature.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:41 -07:00
Darrick J. Wong
06dbf82b04 xfs: trace timestamp limits
Add a couple of tracepoints so that we can check the timestamp limits
being set on inodes and quotas.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:41 -07:00
Darrick J. Wong
4ea1ff3b49 xfs: widen ondisk quota expiration timestamps to handle y2038+
Enable the bigtime feature for quota timers.  We decrease the accuracy
of the timers to ~4s in exchange for being able to set timers up to the
bigtime maximum.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:41 -07:00
Darrick J. Wong
f93e5436f0 xfs: widen ondisk inode timestamps to deal with y2038+
Redesign the ondisk inode timestamps to be a simple unsigned 64-bit
counter of nanoseconds since 14 Dec 1901 (i.e. the minimum time in the
32-bit unix time epoch).  This enables us to handle dates up to 2486,
which solves the y2038 problem.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:41 -07:00
Darrick J. Wong
30e0559921 xfs: redefine xfs_ictimestamp_t
Redefine xfs_ictimestamp_t as a uint64_t typedef in preparation for the
bigtime functionality.  Preserve the legacy structure format so that we
can let the compiler take care of the masking and shifting.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:41 -07:00
Darrick J. Wong
5a0bb066f6 xfs: redefine xfs_timestamp_t
Redefine xfs_timestamp_t as a __be64 typedef in preparation for the
bigtime functionality.  Preserve the legacy structure format so that we
can let the compiler take care of masking and shifting.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:41 -07:00
Darrick J. Wong
88947ea0ba xfs: move xfs_log_dinode_to_disk to the log recovery code
Move this function to xfs_inode_item_recover.c since there's only one
caller of it.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:40 -07:00
Darrick J. Wong
9f99c8fe55 xfs: refactor quota timestamp coding
Refactor quota timestamp encoding and decoding into helper functions so
that we can add extra behavior in the next patch.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:40 -07:00
Darrick J. Wong
ccc8e771aa xfs: refactor default quota grace period setting code
Refactor the code that sets the default quota grace period into a helper
function so that we can override the ondisk behavior later.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:40 -07:00
Darrick J. Wong
11d8a91902 xfs: refactor quota expiration timer modification
Define explicit limits on the range of quota grace period expiration
timeouts and refactor the code that modifies the timeouts into helpers
that clamp the values appropriately.  Note that we'll refactor the
default grace period timer separately.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:40 -07:00
Darrick J. Wong
876fdc7c4f xfs: explicitly define inode timestamp range
Formally define the inode timestamp ranges that existing filesystems
support, and switch the vfs timetamp ranges to use it.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
2020-09-15 20:52:40 -07:00
Darrick J. Wong
b896a39faa xfs: enable new inode btree counters feature
Enable the new inode btree counters feature.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2020-09-15 20:52:40 -07:00
Darrick J. Wong
11f744234f xfs: support inode btree blockcounts in online repair
Add the necessary bits to the online repair code to support logging the
inode btree counters when rebuilding the btrees, and to support fixing
the counters when rebuilding the AGI.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2020-09-15 20:52:40 -07:00
Darrick J. Wong
1dbbff029f xfs: support inode btree blockcounts in online scrub
Add the necessary bits to the online scrub code to check the inode btree
counters when enabled.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2020-09-15 20:52:40 -07:00
Darrick J. Wong
1ac35f061a xfs: use the finobt block counts to speed up mount times
Now that we have reliable finobt block counts, use them to speed up the
per-AG block reservation calculations at mount time.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2020-09-15 20:52:39 -07:00
Darrick J. Wong
2a39946c98 xfs: store inode btree block counts in AGI header
Add a btree block usage counters for both inode btrees to the AGI header
so that we don't have to walk the entire finobt at mount time to create
the per-AG reservations.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2020-09-15 20:52:39 -07:00
Christoph Hellwig
26e328759b xfs: reuse _xfs_buf_read for re-reading the superblock
Instead of poking deeply into buffer cache internals when re-reading the
superblock during log recovery just generalize _xfs_buf_read and use it
there.  Note that we don't have to explicitly set up the ops as they
must be set from the initial read.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:39 -07:00
Christoph Hellwig
b3f8e08ca8 xfs: remove xfs_getsb
Merge xfs_getsb into its only caller, and clean that one up a little bit
as well.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:39 -07:00
Christoph Hellwig
cead0b10f5 xfs: simplify xfs_trans_getsb
Remove the mp argument as this function is only called in transaction
context, and open code xfs_getsb given that the function already accesses
the buffer pointer in the mount point directly.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:39 -07:00
Christoph Hellwig
22c10589a1 xfs: remove xlog_recover_iodone
The log recovery I/O completion handler does not substancially differ from
the normal one except for the fact that it:

 a) never retries failed writes
 b) can have log items that aren't on the AIL
 c) never has inode/dquot log items attached and thus don't need to
    handle them

Add conditionals for (a) and (b) to the ioend code, while (c) doesn't
need special handling anyway.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:39 -07:00
Christoph Hellwig
55b7d7115f xfs: clear the read/write flags later in xfs_buf_ioend
Clear the flags at the end of xfs_buf_ioend so that they can be used
during the completion.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:39 -07:00
Christoph Hellwig
b840e2ada8 xfs: use xfs_buf_item_relse in xfs_buf_item_done
Reuse xfs_buf_item_relse instead of duplicating it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:39 -07:00
Christoph Hellwig
70796c6b74 xfs: simplify the xfs_buf_ioend_disposition calling convention
Now that all the actual error handling is in a single place,
xfs_buf_ioend_disposition just needs to return true if took ownership of
the buffer, or false if not instead of the tristate.  Also move the
error check back in the caller to optimize for the fast path, and give
the function a better fitting name.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:38 -07:00
Christoph Hellwig
844c9358df xfs: lift the XBF_IOEND_FAIL handling into xfs_buf_ioend_disposition
Keep all the error handling code together.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:38 -07:00
Christoph Hellwig
3cc498845a xfs: remove xfs_buf_ioerror_retry
Merge xfs_buf_ioerror_retry into its only caller to make the resubmission
flow a little easier to follow.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:38 -07:00
Christoph Hellwig
f58d0ea956 xfs: refactor xfs_buf_ioerror_fail_without_retry
xfs_buf_ioerror_fail_without_retry is a somewhat weird function in
that it has two trivial checks that decide the return value, while
the rest implements a ratelimited warning.  Just lift the two checks
into the caller, and give the remainder a suitable name.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:38 -07:00
Christoph Hellwig
6a7584b1d8 xfs: fold xfs_buf_ioend_finish into xfs_ioend
No need to keep a separate helper for this logic.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:38 -07:00
Christoph Hellwig
664ffb8a42 xfs: move the buffer retry logic to xfs_buf.c
Move the buffer retry state machine logic to xfs_buf.c and call it once
from xfs_ioend instead of duplicating it three times for the three kinds
of buffers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:38 -07:00
Christoph Hellwig
23fb5a93c2 xfs: refactor xfs_buf_ioend
Move the log recovery I/O completion handling entirely into the log
recovery code, and re-arrange the normal I/O completion handler flow
to prepare to lifting more logic into common code in the next commits.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:38 -07:00
Christoph Hellwig
76b2d32346 xfs: mark xfs_buf_ioend static
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:38 -07:00
Christoph Hellwig
12e164aa1f xfs: refactor the buf ioend disposition code
Handle the no-error case in xfs_buf_iodone_error as well, and to clarify
the code rename the function, use the actual enum type as return value
and then switch on it in the callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-15 20:52:38 -07:00
Dave Chinner
718ecc5035 xfs: xfs_iflock is no longer a completion
With the recent rework of the inode cluster flushing, we no longer
ever wait on the the inode flush "lock". It was never a lock in the
first place, just a completion to allow callers to wait for inode IO
to complete. We now never wait for flush completion as all inode
flushing is non-blocking. Hence we can get rid of all the iflock
infrastructure and instead just set and check a state flag.

Rename the XFS_IFLOCK flag to XFS_IFLUSHING, convert all the
xfs_iflock_nowait() test-and-set operations on that flag, and
replace all the xfs_ifunlock() calls to clear operations.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-06 18:05:51 -07:00
Carlos Maiolino
771915c4f6 xfs: remove kmem_realloc()
Remove kmem_realloc() function and convert its users to use MM API
directly (krealloc())

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-09-06 18:05:51 -07:00
Linus Torvalds
f4d51dffc6 Linux 5.9-rc4 v5.9-rc4 2020-09-06 17:11:40 -07:00
Linus Torvalds
a8205e3100 io_uring-5.9-2020-09-06
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Merge tag 'io_uring-5.9-2020-09-06' of git://git.kernel.dk/linux-block

Pull more io_uring fixes from Jens Axboe:
 "Two followup fixes. One is fixing a regression from this merge window,
  the other is two commits fixing cancelation of deferred requests.

  Both have gone through full testing, and both spawned a few new
  regression test additions to liburing.

   - Don't play games with const, properly store the output iovec and
     assign it as needed.

   - Deferred request cancelation fix (Pavel)"

* tag 'io_uring-5.9-2020-09-06' of git://git.kernel.dk/linux-block:
  io_uring: fix linked deferred ->files cancellation
  io_uring: fix cancel of deferred reqs with ->files
  io_uring: fix explicit async read/write mapping for large segments
2020-09-06 12:10:27 -07:00
Linus Torvalds
2ccdd9f8b2 IOMMU Fixes for Linux v5.9-rc3
Including:
 
 	- Three Intel VT-d fixes to fix address handling on 32bit, fix a
 	  NULL pointer dereference bug and serialize a hardware register
 	  access as required by the VT-d spec.
 
 	- Two patches for AMD IOMMU to force AMD GPUs into translation mode
 	  when memory encryption is active and disallow using IOMMUv2
 	  functionality. This makes the AMDGPU driver working when
 	  memory encryption is active.
 
 	- Two more fixes for AMD IOMMU to fix updating the Interrupt
 	  Remapping Table Entries.
 
 	- MAINTAINERS file update for the Qualcom IOMMU driver.
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Merge tag 'iommu-fixes-v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - three Intel VT-d fixes to fix address handling on 32bit, fix a NULL
   pointer dereference bug and serialize a hardware register access as
   required by the VT-d spec.

 - two patches for AMD IOMMU to force AMD GPUs into translation mode
   when memory encryption is active and disallow using IOMMUv2
   functionality.  This makes the AMDGPU driver work when memory
   encryption is active.

 - two more fixes for AMD IOMMU to fix updating the Interrupt Remapping
   Table Entries.

 - MAINTAINERS file update for the Qualcom IOMMU driver.

* tag 'iommu-fixes-v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Handle 36bit addressing for x86-32
  iommu/amd: Do not use IOMMUv2 functionality when SME is active
  iommu/amd: Do not force direct mapping when SME is active
  iommu/amd: Use cmpxchg_double() when updating 128-bit IRTE
  iommu/amd: Restore IRTE.RemapEn bit after programming IRTE
  iommu/vt-d: Fix NULL pointer dereference in dev_iommu_priv_set()
  iommu/vt-d: Serialize IOMMU GCMD register modifications
  MAINTAINERS: Update QUALCOMM IOMMU after Arm SMMU drivers move
2020-09-06 11:58:15 -07:00
Linus Torvalds
015b3155c4 Misc fixes:
- Fix more generic entry code ABI fallout
  - Fix debug register handling bugs
  - Fix vmalloc mappings on 32-bit kernels
  - Fix kprobes instrumentation output on 32-bit kernels
  - Fix over-eager WARN_ON_ONCE() on !SMAP hardware
  - Fix NUMA debugging
  - Fix Clang related crash on !RETPOLINE kernels
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2020-09-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:

 - more generic entry code ABI fallout

 - debug register handling bugfixes

 - fix vmalloc mappings on 32-bit kernels

 - kprobes instrumentation output fix on 32-bit kernels

 - fix over-eager WARN_ON_ONCE() on !SMAP hardware

 - NUMA debugging fix

 - fix Clang related crash on !RETPOLINE kernels

* tag 'x86-urgent-2020-09-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/entry: Unbreak 32bit fast syscall
  x86/debug: Allow a single level of #DB recursion
  x86/entry: Fix AC assertion
  tracing/kprobes, x86/ptrace: Fix regs argument order for i386
  x86, fakenuma: Fix invalid starting node ID
  x86/mm/32: Bring back vmalloc faulting on x86_32
  x86/cmdline: Disable jump tables for cmdline.c
2020-09-06 10:28:00 -07:00
Linus Torvalds
68beef5710 xen: branch for v5.9-rc4
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Merge tag 'for-linus-5.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:
 "A small series for fixing a problem with Xen PVH guests when running
  as backends (e.g. as dom0).

  Mapping other guests' memory is now working via ZONE_DEVICE, thus not
  requiring to abuse the memory hotplug functionality for that purpose"

* tag 'for-linus-5.9-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen: add helpers to allocate unpopulated memory
  memremap: rename MEMORY_DEVICE_DEVDAX to MEMORY_DEVICE_GENERIC
  xen/balloon: add header guard
2020-09-06 09:59:27 -07:00
Pavel Begunkov
c127a2a1b7 io_uring: fix linked deferred ->files cancellation
While looking for ->files in ->defer_list, consider that requests there
may actually be links.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-05 16:02:42 -06:00
Pavel Begunkov
b7ddce3cbf io_uring: fix cancel of deferred reqs with ->files
While trying to cancel requests with ->files, it also should look for
requests in ->defer_list, otherwise it might end up hanging a thread.

Cancel all requests in ->defer_list up to the last request there with
matching ->files, that's needed to follow drain ordering semantics.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-05 15:59:51 -06:00
Linus Torvalds
dd9fb9bb33 A trivial patch for auxdisplay:
- Replace HTTP links with HTTPS ones (Alexander A. Klimov)
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mergetag object 4e4bb894467cd2a08fc3116407b13e6bc23a7119
 type commit
 tag clang-format-for-linus-v5.9-rc4
 tagger Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> 1599306139 +0200
 
 The usual trivial update:
 
  - Update with the latest for_each macro list (Miguel Ojeda)
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mergetag object e5fc436f06eef54ef512ea55a9db8eb9f2e76959
 type commit
 tag compiler-attributes-for-linus-v5.9-rc4
 tagger Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> 1599306822 +0200
 
 Two trivial changes and a fix for sparse:
 
  - sparse: use static inline for __chk_{user,io}_ptr() (Luc Van Oostenryck)
 
  - Compiler Attributes: fix comment concerning GCC 4.6 (Luc Van Oostenryck)
 
  - Compiler Attributes: remove comment about sparse not supporting __has_attribute (Luc Van Oostenryck)
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Merge tags 'auxdisplay-for-linus-v5.9-rc4', 'clang-format-for-linus-v5.9-rc4' and 'compiler-attributes-for-linus-v5.9-rc4' of git://github.com/ojeda/linux

Pull misc fixes from Miguel Ojeda:
 "A trivial patch for auxdisplay:

   - Replace HTTP links with HTTPS ones (Alexander A. Klimov)

  The usual clang-format trivial update:

   - Update with the latest for_each macro list (Miguel Ojeda)

  And Luc requested me to pick a sparse fix on my queue, so here it goes
  along with other two trivial Compiler Attributes ones (also from Luc).

   - sparse: use static inline for __chk_{user,io}_ptr() (Luc Van
     Oostenryck)

   - Compiler Attributes: fix comment concerning GCC 4.6 (Luc Van
     Oostenryck)

   - Compiler Attributes: remove comment about sparse not supporting
     __has_attribute (Luc Van Oostenryck)"

* tag 'auxdisplay-for-linus-v5.9-rc4' of git://github.com/ojeda/linux:
  auxdisplay: Replace HTTP links with HTTPS ones

* tag 'clang-format-for-linus-v5.9-rc4' of git://github.com/ojeda/linux:
  clang-format: Update with the latest for_each macro list

* tag 'compiler-attributes-for-linus-v5.9-rc4' of git://github.com/ojeda/linux:
  sparse: use static inline for __chk_{user,io}_ptr()
  Compiler Attributes: fix comment concerning GCC 4.6
  Compiler Attributes: remove comment about sparse not supporting __has_attribute
2020-09-05 14:22:46 -07:00