Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux

Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux

Pull fsverity updates from Eric Biggers:
 "fsverity cleanups, speedup, and memory usage optimization from
  Christoph Hellwig:

   - Move some logic into common code

   - Fix btrfs to reject truncates of fsverity files

   - Improve the readahead implementation

   - Store each inode's fsverity_info in a hash table instead of using a
     pointer in the filesystem-specific part of the inode.

     This optimizes for memory usage in the usual case where most files
     don't have fsverity enabled.

   - Look up the fsverity_info fewer times during verification, to
     amortize the hash table overhead"

* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
  fsverity: remove inode from fsverity_verification_ctx
  fsverity: use a hashtable to find the fsverity_info
  btrfs: consolidate fsverity_info lookup
  f2fs: consolidate fsverity_info lookup
  ext4: consolidate fsverity_info lookup
  fs: consolidate fsverity_info lookup in buffer.c
  fsverity: push out fsverity_info lookup
  fsverity: deconstify the inode pointer in struct fsverity_info
  fsverity: kick off hash readahead at data I/O submission time
  ext4: move ->read_folio and ->readahead to readpage.c
  readahead: push invalidate_lock out of page_cache_ra_unbounded
  fsverity: don't issue readahead for non-ENOENT errors from __filemap_get_folio
  fsverity: start consolidating pagecache code
  fsverity: pass struct file to ->write_merkle_tree_block
  f2fs: don't build the fsverity work handler for !CONFIG_FS_VERITY
  ext4: don't build the fsverity work handler for !CONFIG_FS_VERITY
  fs,fsverity: clear out fsverity_info from common code
  fs,fsverity: reject size changes on fsverity files in setattr_prepare