Merge tag 'for-5.18-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "This contains feature updates, performance improvements, preparatory
  and core work and some related VFS updates:

  Features:

   - encoded read/write ioctls, allows user space to read or write raw
     data directly to extents (now compressed, encrypted in the future),
     will be used by send/receive v2 where it saves processing time

   - zoned mode now works with metadata DUP (the mkfs.btrfs default)

   - error message header updates:
      - print error state: transaction abort, other error, log tree
        errors
      - print transient filesystem state: remount, device replace,
        ignored checksum verifications

   - tree-checker: verify the transaction id of the to-be-written dirty
     extent buffer

  Performance improvements for fsync:

   - directory logging speedups (up to -90% run time)

   - avoid logging all directory changes during renames (up to -60% run
     time)

   - avoid inode logging during rename and link when possible (up to
     -60% run time)

   - prepare extents to be logged before locking a log tree path
     (throughput +7%)

   - stop copying old file extents when doing a full fsync()

   - improved logging of old extents after truncate

  Core, fixes:

   - improved stale device identification by dev_t and not just path
     (for devices that are behind other layers like device mapper)

   - continued extent tree v2 preparatory work
      - disable features that won't work yet
      - add wrappers and abstractions for new tree roots

   - improved error handling

   - add super block write annotations around background block group
     reclaim

   - fix device scanning messages potentially accessing stale pointer

   - cleanups and refactoring

  VFS:

   - allow reflinks/deduplication from two different mounts of the same
     filesystem

   - export and add helpers for read/write range verification, for the
     encoded ioctls"

* tag 'for-5.18-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (98 commits)
  btrfs: zoned: put block group after final usage
  btrfs: don't access possibly stale fs_info data in device_list_add
  btrfs: add lockdep_assert_held to need_preemptive_reclaim
  btrfs: verify the tranisd of the to-be-written dirty extent buffer
  btrfs: unify the error handling of btrfs_read_buffer()
  btrfs: unify the error handling pattern for read_tree_block()
  btrfs: factor out do_free_extent_accounting helper
  btrfs: remove last_ref from the extent freeing code
  btrfs: add a alloc_reserved_extent helper
  btrfs: remove BUG_ON(ret) in alloc_reserved_tree_block
  btrfs: add and use helper for unlinking inode during log replay
  btrfs: extend locking to all space_info members accesses
  btrfs: zoned: mark relocation as writing
  fs: allow cross-vfsmount reflink/dedupe
  btrfs: remove the cross file system checks from remap
  btrfs: pass btrfs_fs_info to btrfs_recover_relocation
  btrfs: pass btrfs_fs_info for deleting snapshots and cleaner
  btrfs: add filesystems state details to error messages
  btrfs: deal with unexpected extent type during reflinking
  btrfs: fix unexpected error path when reflinking an inline extent
  ...

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/fs.h b/include/linux/fs.h
index e2d892b201b0..27746a3da8fd 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3130,6 +3130,7 @@ extern int sb_min_blocksize(struct super_block *, int);
 extern int generic_file_mmap(struct file *, struct vm_area_struct *);
 extern int generic_file_readonly_mmap(struct file *, struct vm_area_struct *);
 extern ssize_t generic_write_checks(struct kiocb *, struct iov_iter *);
+int generic_write_checks_count(struct kiocb *iocb, loff_t *count);
 extern int generic_write_check_limits(struct file *file, loff_t pos,
 		loff_t *count);
 extern int generic_file_rw_checks(struct file *file_in, struct file *file_out);
@@ -3173,6 +3174,7 @@ extern loff_t fixed_size_llseek(struct file *file, loff_t offset,
 		int whence, loff_t size);
 extern loff_t no_seek_end_llseek_size(struct file *, loff_t, int, loff_t);
 extern loff_t no_seek_end_llseek(struct file *, loff_t, int);
+int rw_verify_area(int, struct file *, const loff_t *, size_t);
 extern int generic_file_open(struct inode * inode, struct file * filp);
 extern int nonseekable_open(struct inode * inode, struct file * filp);
 extern int stream_open(struct inode * inode, struct file * filp);