Commit Graph

5691 Commits

Author SHA1 Message Date
Linus Torvalds
366a4e38b8 Also new for 5.3:
- Bring fs/xfs/libxfs/xfs_trans_inode.c in sync with userspace libxfs.
 - Convert the xfs administrator guide to rst and move it into the
   official admin guide under Documentation
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Merge tag 'xfs-5.3-merge-13' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs cleanups from Darrick Wong:
 "We had a few more lateish cleanup patches come in for 5.3 -- a couple
  of syncups with the userspace libxfs code and a conversion of the XFS
  administrator's guide to ReST format.

  Summary:

   - Bring fs/xfs/libxfs/xfs_trans_inode.c in sync with userspace
     libxfs.

   - Convert the xfs administrator guide to rst and move it into the
     official admin guide under Documentation"

* tag 'xfs-5.3-merge-13' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  Documentation: filesystem: Convert xfs.txt to ReST
  xfs: sync up xfs_trans_inode with userspace
  xfs: move xfs_trans_inode.c to libxfs/
2019-07-18 11:18:00 -07:00
Linus Torvalds
f8c3500cd1 - virtio_pmem: The new virtio_pmem facility introduces a paravirtualized
persistent memory device that allows a guest VM to use DAX mechanisms to
   access a host-file with host-page-cache. It arranges for MAP_SYNC to
   be disabled and instead triggers a host fsync() when a 'write-cache
   flush' command is sent to the virtual disk device.
 
 - Miscellaneous small fixups.
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Merge tag 'libnvdimm-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm updates from Dan Williams:
 "Primarily just the virtio_pmem driver:

   - virtio_pmem

     The new virtio_pmem facility introduces a paravirtualized
     persistent memory device that allows a guest VM to use DAX
     mechanisms to access a host-file with host-page-cache. It arranges
     for MAP_SYNC to be disabled and instead triggers a host fsync()
     when a 'write-cache flush' command is sent to the virtual disk
     device.

   - Miscellaneous small fixups"

* tag 'libnvdimm-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  virtio_pmem: fix sparse warning
  xfs: disable map_sync for async flush
  ext4: disable map_sync for async flush
  dax: check synchronous mapping is supported
  dm: enable synchronous dax
  libnvdimm: add dax_dev sync flag
  virtio-pmem: Add virtio pmem driver
  libnvdimm: nd_region flush callback support
  libnvdimm, namespace: Drop uuid_t implementation detail
2019-07-18 10:52:08 -07:00
Linus Torvalds
9637d51734 for-linus-20190715
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Merge tag 'for-linus-20190715' of git://git.kernel.dk/linux-block

Pull more block updates from Jens Axboe:
 "A later pull request with some followup items. I had some vacation
  coming up to the merge window, so certain things items were delayed a
  bit. This pull request also contains fixes that came in within the
  last few days of the merge window, which I didn't want to push right
  before sending you a pull request.

  This contains:

   - NVMe pull request, mostly fixes, but also a few minor items on the
     feature side that were timing constrained (Christoph et al)

   - Report zones fixes (Damien)

   - Removal of dead code (Damien)

   - Turn on cgroup psi memstall (Josef)

   - block cgroup MAINTAINERS entry (Konstantin)

   - Flush init fix (Josef)

   - blk-throttle low iops timing fix (Konstantin)

   - nbd resize fixes (Mike)

   - nbd 0 blocksize crash fix (Xiubo)

   - block integrity error leak fix (Wenwen)

   - blk-cgroup writeback and priority inheritance fixes (Tejun)"

* tag 'for-linus-20190715' of git://git.kernel.dk/linux-block: (42 commits)
  MAINTAINERS: add entry for block io cgroup
  null_blk: fixup ->report_zones() for !CONFIG_BLK_DEV_ZONED
  block: Limit zone array allocation size
  sd_zbc: Fix report zones buffer allocation
  block: Kill gfp_t argument of blkdev_report_zones()
  block: Allow mapping of vmalloc-ed buffers
  block/bio-integrity: fix a memory leak bug
  nvme: fix NULL deref for fabrics options
  nbd: add netlink reconfigure resize support
  nbd: fix crash when the blksize is zero
  block: Disable write plugging for zoned block devices
  block: Fix elevator name declaration
  block: Remove unused definitions
  nvme: fix regression upon hot device removal and insertion
  blk-throttle: fix zero wait time for iops throttled group
  block: Fix potential overflow in blk_report_zones()
  blkcg: implement REQ_CGROUP_PUNT
  blkcg, writeback: Implement wbc_blkcg_css()
  blkcg, writeback: Add wbc->no_cgroup_owner
  blkcg, writeback: Rename wbc_account_io() to wbc_account_cgroup_owner()
  ...
2019-07-15 21:20:52 -07:00
Eric Sandeen
79ba2a2185 xfs: sync up xfs_trans_inode with userspace
Add an XFS_ICHGTIME_CREATE case to xfs_trans_ichgtime() to keep in
sync with userspace.  (Currently no kernel caller sends this flag.)

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-07-15 08:10:34 -07:00
Eric Sandeen
3f6d70e885 xfs: move xfs_trans_inode.c to libxfs/
Userspace now has an identical xfs_trans_inode.c which it has already
moved to libxfs/ so do the same move for kernelspace.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-07-15 08:10:18 -07:00
Linus Torvalds
4ce9d181eb New stuff for 5.3:
- Refactor inode geometry calculation into a single structure instead of
   open-coding pieces everywhere.
 - Add online repair to build options.
 - Remove unnecessary function call flags and functions.
 - Claim maintainership of various loose xfs documentation and header
   files.
 - Use struct bio directly for log buffer IOs instead of struct xfs_buf.
 - Reduce log item boilerplate code requirements.
 - Merge log item code spread across too many files.
 - Further distinguish between log item commits and cancellations.
 - Various small cleanups to the ag small allocator.
 - Support cgroup-aware writeback
 - libxfs refactoring for mkfs cleanup
 - Remove unneeded #includes
 - Fix a memory allocation miscalculation in the new log bio code
 - Fix bisection problems
 - Fix a crash in ioend processing caused by tripping over freeing of
   preallocated transactions
 - Split out a generic inode walk mechanism from the bulkstat code, hook
   up all the internal users to use the walking code, then clean up
   bulkstat to serve only the bulkstat ioctls.
 - Add a multithreaded iwalk implementation to speed up quotacheck on
   fast storage with many CPUs.
 - Remove unnecessary return values in logging teardown functions.
 - Supplement the bstat and inogrp structures with new bulkstat and
   inumbers structures that have all the fields we need for v5
   filesystem features and none of the padding problems of their
   predecessors.
 - Wire up new ioctls that use the new structures with a much simpler
   bulk_ireq structure at the head instead of the pointerhappy mess we
   had before.
 - Enable userspace to constrain bulkstat returns to a single AG or a
   single special inode so that we can phase out a lot of geometry
   guesswork in userspace.
 - Reduce memory consumption and zeroing overhead in extended attribute
   scrub code.
 - Fix some behavioral regressions in the new bulkstat backend code.
 - Fix some behavioral regressions in the new log bio code.
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Merge tag 'xfs-5.3-merge-12' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Darrick Wong:
 "In this release there are a significant amounts of consolidations and
  cleanups in the log code; restructuring of the log to issue struct
  bios directly; new bulkstat ioctls to return v5 fs inode information
  (and fix all the padding problems of the old ioctl); the beginnings of
  multithreaded inode walks (e.g. quotacheck); and a reduction in memory
  usage in the online scrub code leading to reduced runtimes.

   - Refactor inode geometry calculation into a single structure instead
     of open-coding pieces everywhere.

   - Add online repair to build options.

   - Remove unnecessary function call flags and functions.

   - Claim maintainership of various loose xfs documentation and header
     files.

   - Use struct bio directly for log buffer IOs instead of struct
     xfs_buf.

   - Reduce log item boilerplate code requirements.

   - Merge log item code spread across too many files.

   - Further distinguish between log item commits and cancellations.

   - Various small cleanups to the ag small allocator.

   - Support cgroup-aware writeback

   - libxfs refactoring for mkfs cleanup

   - Remove unneeded #includes

   - Fix a memory allocation miscalculation in the new log bio code

   - Fix bisection problems

   - Fix a crash in ioend processing caused by tripping over freeing of
     preallocated transactions

   - Split out a generic inode walk mechanism from the bulkstat code,
     hook up all the internal users to use the walking code, then clean
     up bulkstat to serve only the bulkstat ioctls.

   - Add a multithreaded iwalk implementation to speed up quotacheck on
     fast storage with many CPUs.

   - Remove unnecessary return values in logging teardown functions.

   - Supplement the bstat and inogrp structures with new bulkstat and
     inumbers structures that have all the fields we need for v5
     filesystem features and none of the padding problems of their
     predecessors.

   - Wire up new ioctls that use the new structures with a much simpler
     bulk_ireq structure at the head instead of the pointerhappy mess we
     had before.

   - Enable userspace to constrain bulkstat returns to a single AG or a
     single special inode so that we can phase out a lot of geometry
     guesswork in userspace.

   - Reduce memory consumption and zeroing overhead in extended
     attribute scrub code.

   - Fix some behavioral regressions in the new bulkstat backend code.

   - Fix some behavioral regressions in the new log bio code"

* tag 'xfs-5.3-merge-12' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (100 commits)
  xfs: chain bios the right way around in xfs_rw_bdev
  xfs: bump INUMBERS cursor correctly in xfs_inumbers_walk
  xfs: don't update lastino for FSBULKSTAT_SINGLE
  xfs: online scrub needn't bother zeroing its temporary buffer
  xfs: only allocate memory for scrubbing attributes when we need it
  xfs: refactor attr scrub memory allocation function
  xfs: refactor extended attribute buffer pointer functions
  xfs: attribute scrub should use seen_enough to pass error values
  xfs: allow single bulkstat of special inodes
  xfs: specify AG in bulk req
  xfs: wire up the v5 inumbers ioctl
  xfs: wire up new v5 bulkstat ioctls
  xfs: introduce v5 inode group structure
  xfs: introduce new v5 bulkstat structure
  xfs: rename bulkstat functions
  xfs: remove various bulk request typedef usage
  fs: xfs: xfs_log: Change return type from int to void
  xfs: poll waiting for quotacheck
  xfs: multithreaded iwalk implementation
  xfs: refactor INUMBERS to use iwalk functions
  ...
2019-07-12 17:17:51 -07:00
Linus Torvalds
5010fe9f09 New for 5.3:
- Standardize parameter checking for the SETFLAGS and FSSETXATTR ioctls
   (which were the file attribute setters for ext4 and xfs and have now
   been hoisted to the vfs)
 - Only allow the DAX flag to be set on files and directories.
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Merge tag 'vfs-fix-ioctl-checking-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull common SETFLAGS/FSSETXATTR parameter checking from Darrick Wong:
 "Here's a patch series that sets up common parameter checking functions
  for the FS_IOC_SETFLAGS and FS_IOC_FSSETXATTR ioctl implementations.

  The goal here is to reduce the amount of behaviorial variance between
  the filesystems where those ioctls originated (ext2 and XFS,
  respectively) and everybody else.

   - Standardize parameter checking for the SETFLAGS and FSSETXATTR
     ioctls (which were the file attribute setters for ext4 and xfs and
     have now been hoisted to the vfs)

   - Only allow the DAX flag to be set on files and directories"

* tag 'vfs-fix-ioctl-checking-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  vfs: only allow FSSETXATTR to set DAX flag on files and dirs
  vfs: teach vfs_ioc_fssetxattr_check to check extent size hints
  vfs: teach vfs_ioc_fssetxattr_check to check project id info
  vfs: create a generic checking function for FS_IOC_FSSETXATTR
  vfs: create a generic checking and prep function for FS_IOC_SETFLAGS
2019-07-12 16:54:37 -07:00
Linus Torvalds
40f06c7995 Changes to copy_file_range for 5.3 from Dave and Amir:
- Create a generic copy_file_range handler and make individual
   filesystems responsible for calling it (i.e. no more assuming that
   do_splice_direct will work or is appropriate)
 - Refactor copy_file_range and remap_range parameter checking where they
   are the same
 - Install missing copy_file_range parameter checking(!)
 - Remove suid/sgid and update mtime like any other file write
 - Change the behavior so that a copy range crossing the source file's
   eof will result in a short copy to the source file's eof instead of
   EINVAL
 - Permit filesystems to decide if they want to handle cross-superblock
   copy_file_range in their local handlers.
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Merge tag 'copy-file-range-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull copy_file_range updates from Darrick Wong:
 "This fixes numerous parameter checking problems and inconsistent
  behaviors in the new(ish) copy_file_range system call.

  Now the system call will actually check its range parameters
  correctly; refuse to copy into files for which the caller does not
  have sufficient privileges; update mtime and strip setuid like file
  writes are supposed to do; and allows copying up to the EOF of the
  source file instead of failing the call like we used to.

  Summary:

   - Create a generic copy_file_range handler and make individual
     filesystems responsible for calling it (i.e. no more assuming that
     do_splice_direct will work or is appropriate)

   - Refactor copy_file_range and remap_range parameter checking where
     they are the same

   - Install missing copy_file_range parameter checking(!)

   - Remove suid/sgid and update mtime like any other file write

   - Change the behavior so that a copy range crossing the source file's
     eof will result in a short copy to the source file's eof instead of
     EINVAL

   - Permit filesystems to decide if they want to handle
     cross-superblock copy_file_range in their local handlers"

* tag 'copy-file-range-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  fuse: copy_file_range needs to strip setuid bits and update timestamps
  vfs: allow copy_file_range to copy across devices
  xfs: use file_modified() helper
  vfs: introduce file_modified() helper
  vfs: add missing checks to copy_file_range
  vfs: remove redundant checks from generic_remap_checks()
  vfs: introduce generic_file_rw_checks()
  vfs: no fallback for ->copy_file_range
  vfs: introduce generic_copy_file_range()
2019-07-10 20:32:37 -07:00
Christoph Hellwig
488ca3d8d0 xfs: chain bios the right way around in xfs_rw_bdev
We need to chain the earlier bios to the later ones, so that
submit_bio_wait waits on the bio that all the completions are
dispatched to.

Fixes: 6ad5b3255b ("xfs: use bios directly to read and write the log recovery buffers")
Reported-by: Dave Chinner <david@fromorbit.com>
Tested-by: Dave Chinner <david@fromorbit.com>
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>
2019-07-10 10:04:16 -07:00
Darrick J. Wong
0df5c39b3e xfs: bump INUMBERS cursor correctly in xfs_inumbers_walk
There's a subtle unit conversion error when we increment the INUMBERS
cursor at the end of xfs_inumbers_walk.  If there's an inode chunk at
the very end of the AG /and/ the AG size is a perfect power of two, the
startino of that last chunk (which is in units of AG inodes) will be 63
less than (1 << agino_log).  If we add XFS_INODES_PER_CHUNK to the
startino, we end up with a startino that's larger than (1 << agino_log)
and when we convert that back to fs inode units we'll rip off that upper
bit and wind up back at the start of the AG.

Fix this by converting to units of fs inodes before adding
XFS_INODES_PER_CHUNK so that we'll harmlessly end up pointing to the
next AG.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-09 08:06:20 -07:00
Darrick J. Wong
211bbf3c38 xfs: don't update lastino for FSBULKSTAT_SINGLE
The kernel test robot found a regression of xfs/054 in the conversion of
bulkstat to use the new iwalk infrastructure -- if a caller set *lastip
= 128 and invoked FSBULKSTAT_SINGLE, the bstat info would be for inode
128, but *lastip would be increased by the kernel to 129.

FSBULKSTAT_SINGLE never incremented lastip before, so it's incorrect to
make such an update to the internal lastino value now.

Fixes: 2810bd6840 ("xfs: convert bulkstat to new iwalk infrastructure")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-06 21:05:10 -07:00
Pankaj Gupta
b21fec4140 xfs: disable map_sync for async flush
Dont support 'MAP_SYNC' with non-DAX files and DAX files
with asynchronous dax_device. Virtio pmem provides
asynchronous host page cache flush mechanism. We don't
support 'MAP_SYNC' with virtio pmem and xfs.

Signed-off-by: Pankaj Gupta <pagupta@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-07-05 15:19:10 -07:00
Darrick J. Wong
036f463fe1 xfs: online scrub needn't bother zeroing its temporary buffer
The xattr scrubber functions use the temporary memory buffer either for
storing bitmaps or for testing if attribute value extraction works.  The
bitmap code always zeroes what it needs and the value extraction sets
the buffer contents, so it's not necessary to waste CPU time zeroing on
allocation.

Note that while we never read the contents that the attr value
extraction function sets, we do need to call it to check the remote
attribute header and CRCs to check for corruption.

A flame graph analysis showed that we were spending 7% of a xfs_scrub
run (the whole program, not just the attr scrubber itself) allocating
and zeroing 64k segments needlessly.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-05 10:29:56 -07:00
Darrick J. Wong
6d6ccedd76 xfs: only allocate memory for scrubbing attributes when we need it
In examining a flame graph of time spent running xfs_scrub on various
filesystems, I noticed that we spent nearly 7% of the total runtime on
allocating a zeroed 65k buffer for every SCRUB_TYPE_XATTR invocation.
We do this even if none of the attribute values were anywhere near 64k
in size, even if there were no attribute blocks to check space on, and
even if it just turns out there are no attributes at all.

Therefore, rearrange the xattr buffer setup code to support reallocating
with a bigger buffer and redistribute the callers of that function so
that we only allocate memory just prior to needing it, and only allocate
as much as we need.  If we can't get memory with the ILOCK held we'll
bail out with EDEADLOCK which will allocate the maximum memory.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-05 10:29:56 -07:00
Darrick J. Wong
0081675933 xfs: refactor attr scrub memory allocation function
Move the code that allocates memory buffers for the extended attribute
scrub code into a separate function so we can reduce memory allocations
in the next patch.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-05 10:29:55 -07:00
Darrick J. Wong
3addd24880 xfs: refactor extended attribute buffer pointer functions
Replace the open-coded attribute buffer pointer calculations with helper
functions to make it more obvious what we're doing with our freeform
memory allocation w.r.t. either storing xattr values or computing btree
block free space.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-05 10:29:55 -07:00
Darrick J. Wong
2c3b83d7ca xfs: attribute scrub should use seen_enough to pass error values
When we're iterating all the attributes using the built-in xattr
iterator, we can use the seen_enough variable to pass error codes back
to the main scrub function instead of flattening them into 0/1.  This
will be used in a more exciting fashion in upcoming patches.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-05 10:29:54 -07:00
Darrick J. Wong
bf3cb39447 xfs: allow single bulkstat of special inodes
Create a new bulk ireq flag that enables userspace to ask us for a
special inode number instead of interpreting @ino as a literal inode
number.  This enables us to query the root inode easily.

The reason for adding the ability to query specifically the root
directory inode is that certain programs (xfsdump and xfsrestore) want
to confirm when they've been pointed to the root directory.  The
userspace code assumes the root directory is always the first result
from calling bulkstat with lastino == 0, but this isn't true if the
(initial btree roots + initial AGFL + inode alignment padding) is itself
long enough to be allocated to new inodes if all of those blocks should
happen to be free at the same time.  Rather than make userspace guess
at internal filesystem state, we provide a direct query.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-04 07:52:24 -07:00
Darrick J. Wong
13d59a2a61 xfs: specify AG in bulk req
Add a new xfs_bulk_ireq flag to constrain the iteration to a single AG.
If the passed-in startino value is zero then we start with the first
inode in the AG that the user passes in; otherwise, we iterate only
within the same AG as the passed-in inode.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-04 07:52:23 -07:00
Darrick J. Wong
fba9760a43 xfs: wire up the v5 inumbers ioctl
Wire up the v5 INUMBERS ioctl.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 20:36:28 -07:00
Darrick J. Wong
0448b6f488 xfs: wire up new v5 bulkstat ioctls
Wire up the new v5 BULKSTAT ioctl.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 20:36:27 -07:00
Darrick J. Wong
5f19c7fc68 xfs: introduce v5 inode group structure
Introduce a new "v5" inode group structure that fixes the alignment
and padding problems of the existing structure.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 20:36:27 -07:00
Darrick J. Wong
7035f9724f xfs: introduce new v5 bulkstat structure
Introduce a new version of the in-core bulkstat structure that supports
our new v5 format features.  This structure also fills the gaps in the
previous structure.  We leave wiring up the ioctls for the next patch.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 20:36:26 -07:00
Darrick J. Wong
8bfe9d1810 xfs: rename bulkstat functions
Rename the bulkstat functions to 'fsbulkstat' so that they match the
ioctl names.  We will be introducing a new set of bulkstat/inumbers
ioctls soon, and it will be important to keep the names straight.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 20:36:26 -07:00
Darrick J. Wong
6f71fb6838 xfs: remove various bulk request typedef usage
Remove xfs_bstat_t, xfs_fsop_bulkreq_t, xfs_inogrp_t, and similarly
named compat typedefs.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 20:36:25 -07:00
Hariprasad Kelam
a7a9250e18 fs: xfs: xfs_log: Change return type from int to void
Change return types of below functions as they never fails
xfs_log_mount_cancel
xlog_recover_cancel
xlog_recover_cancel_intents

fix below issue reported by coccicheck
fs/xfs/xfs_log_recover.c:4886:7-12: Unneeded variable: "error". Return
"0" on line 4926

Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-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>
2019-07-03 08:21:58 -07:00
Darrick J. Wong
3e5a428b26 xfs: poll waiting for quotacheck
Create a pwork destroy function that uses polling instead of
uninterruptible sleep to wait for work items to finish so that we can
touch the softlockup watchdog.  IOWs, gross hack.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 08:21:58 -07:00
Darrick J. Wong
40786717c8 xfs: multithreaded iwalk implementation
Create a parallel iwalk implementation and switch quotacheck to use it.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-03 07:33:26 -07:00
Darrick J. Wong
677717fbd4 xfs: refactor INUMBERS to use iwalk functions
Now that we have generic functions to walk inode records, refactor the
INUMBERS implementation to use it.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:06 -07:00
Darrick J. Wong
04b8fba2e1 xfs: refactor iwalk code to handle walking inobt records
Refactor xfs_iwalk_ag_start and xfs_iwalk_ag so that the bits that are
particular to bulkstat (trimming the start irec, starting inode
readahead, and skipping empty groups) can be controlled via flags in the
iwag structure.

This enables us to add a new function to walk all inobt records which
will be used for the new INUMBERS implementation in the next patch.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:06 -07:00
Darrick J. Wong
2b5eb82601 xfs: refactor xfs_iwalk_grab_ichunk
In preparation for reusing the iwalk code for the inogrp walking code
(aka INUMBERS), move the initial inobt lookup and retrieval code out of
xfs_iwalk_grab_ichunk so that we call the masking code only when we need
to trim out the inodes that came before the cursor in the inobt record
(aka BULKSTAT).

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:06 -07:00
Darrick J. Wong
688f7c3678 xfs: clean up long conditionals in xfs_iwalk_ichunk_ra
Refactor xfs_iwalk_ichunk_ra to avoid long conditionals.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:06 -07:00
Darrick J. Wong
5e29f3b720 xfs: change xfs_iwalk_grab_ichunk to use startino, not lastino
Now that the inode chunk grabbing function is a static function in the
iwalk code, change its behavior so that @agino is the inode where we
want to /start/ the iteration.  This reduces cognitive friction with the
callers and simplifes the code.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:05 -07:00
Darrick J. Wong
da1d9e5912 xfs: move bulkstat ichunk helpers to iwalk code
Now that we've reworked the bulkstat code to use iwalk, we can move the
old bulkstat ichunk helpers to xfs_iwalk.c.  No functional changes here.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:05 -07:00
Darrick J. Wong
938c710d99 xfs: calculate inode walk prefetch more carefully
The existing inode walk prefetch is based on the old bulkstat code,
which simply allocated 4 pages worth of memory and prefetched that many
inobt records, regardless of however many inodes the caller requested.
65536 inodes is a lot to prefetch (~32M on x64, ~512M on arm64) so let's
scale things down a little more intelligently based on the number of
inodes requested, etc.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:05 -07:00
Darrick J. Wong
2810bd6840 xfs: convert bulkstat to new iwalk infrastructure
Create a new ibulk structure incore to help us deal with bulk inode stat
state tracking and then convert the bulkstat code to use the new iwalk
iterator.  This disentangles inode walking from bulk stat control for
simpler code and enables us to isolate the formatter functions to the
ioctl handling code.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:05 -07:00
Darrick J. Wong
f16fe3ecde xfs: bulkstat should copy lastip whenever userspace supplies one
When userspace passes in a @lastip pointer we should copy the results
back, even if the @ocount pointer is NULL.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:05 -07:00
Darrick J. Wong
ebd126a651 xfs: convert quotacheck to use the new iwalk functions
Convert quotacheck to use the new iwalk iterator to dig through the
inodes.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:05 -07:00
Darrick J. Wong
a211432c27 xfs: create simplified inode walk function
Create a new iterator function to simplify walking inodes in an XFS
filesystem.  This new iterator will replace the existing open-coded
walking that goes on in various places.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:05 -07:00
Darrick J. Wong
5bb46e3e18 xfs: create iterator error codes
Currently, xfs doesn't have generic error codes defined for "stop
iterating"; we just reuse the XFS_BTREE_QUERY_* return values.  This
looks a little weird if we're not actually iterating a btree index.
Before we start adding more iterators, we should create general
XFS_ITER_{CONTINUE,ABORT} return values and define the XFS_BTREE_QUERY_*
ones from that.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 09:40:05 -07:00
Darrick J. Wong
ca29be7534 vfs: teach vfs_ioc_fssetxattr_check to check extent size hints
Move the extent size hint checks that aren't xfs-specific to the vfs.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Jan Kara <jack@suse.cz>
2019-07-01 08:25:36 -07:00
Darrick J. Wong
f991492ed1 vfs: teach vfs_ioc_fssetxattr_check to check project id info
Standardize the project id checks for FSSETXATTR.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Jan Kara <jack@suse.cz>
2019-07-01 08:25:35 -07:00
Darrick J. Wong
7b0e492e6b vfs: create a generic checking function for FS_IOC_FSSETXATTR
Create a generic checking function for the incoming FS_IOC_FSSETXATTR
fsxattr values so that we can standardize some of the implementation
behaviors.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Jan Kara <jack@suse.cz>
2019-07-01 08:25:35 -07:00
Ming Lei
79d08f89bb block: fix .bi_size overflow
'bio->bi_iter.bi_size' is 'unsigned int', which at most hold 4G - 1
bytes.

Before 07173c3ec2 ("block: enable multipage bvecs"), one bio can
include very limited pages, and usually at most 256, so the fs bio
size won't be bigger than 1M bytes most of times.

Since we support multi-page bvec, in theory one fs bio really can
be added > 1M pages, especially in case of hugepage, or big writeback
with too many dirty pages. Then there is chance in which .bi_size
is overflowed.

Fixes this issue by using bio_full() to check if the added segment may
overflow .bi_size.

Cc: Liu Yiding <liuyd.fnst@cn.fujitsu.com>
Cc: kernel test robot <rong.a.chen@intel.com>
Cc: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: linux-xfs@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: 07173c3ec2 ("block: enable multipage bvecs")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-07-01 08:18:54 -06:00
Christoph Hellwig
73d30d4874 xfs: remove XFS_TRANS_NOFS
Instead of a magic flag for xfs_trans_alloc, just ensure all callers
that can't relclaim through the file system use memalloc_nofs_save to
set the per-task nofs flag.

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>
2019-06-30 09:05:17 -07:00
Christoph Hellwig
fe64e0d26b xfs: simplify xfs_ioend_can_merge
Compare the block layer status directly instead of converting it to
an errno first.

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>
2019-06-30 09:05:17 -07:00
Christoph Hellwig
7dbae9fbde xfs: allow merging ioends over append boundaries
There is no real problem merging ioends that go beyond i_size into an
ioend that doesn't.  We just need to move the append transaction to the
base ioend.  Also use the opportunity to use a real error code instead
of the magic 1 to cancel the transactions, and write a comment
explaining the scheme.

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>
2019-06-30 09:05:17 -07:00
Christoph Hellwig
0290d9c1e5 xfs: fix a comment typo in xfs_submit_ioend
The fail argument is long gone, update the comment.

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>
2019-06-30 09:05:17 -07:00
Christoph Hellwig
1fdafce55c xfs: remove the unused xfs_count_page_state declaration
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>
2019-06-30 09:05:17 -07:00
Christoph Hellwig
89b171acb2 xfs: fix iclog allocation size
Properly allocate the space for the bio_vecs instead of just one byte
per bio_vec.

Fixes: 79b54d9bfc ("xfs: use bios directly to write log buffers")
Reported-by: syzbot+b75afdbe271a0d7ac4f6@syzkaller.appspotmail.com
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>
2019-06-28 21:02:45 -07:00