• Linus Torvalds's avatar
    Merge tag 'erofs-for-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs · 61d325dc
    Linus Torvalds authored
    Pull erofs updates from Gao Xiang:
     "In this cycle, sub-page block support for uncompressed files is
      available. It's mainly used to enable original signing ('golden')
      4k-block images on arm64 with 16/64k pages. In addition, end users
      could also use this feature to build a manifest to directly refer to
      golden tar data.
    
      Besides, long xattr name prefix support is also introduced in this
      cycle to avoid too many xattrs with the same prefix (e.g. overlayfs
      xattrs). It's useful for erofs + overlayfs combination (like Composefs
      model): the image size is reduced by ~14% and runtime performance is
      also slightly improved.
    
      Others are random fixes and cleanups as usual.
    
      Summary:
    
       - Add sub-page block size support for uncompressed files
    
       - Support flattened block device for multi-blob images to be attached
         into virtual machines (including cloud servers) and bare metals
    
       - Support long xattr name prefixes to optimize images with common
         xattr namespaces (e.g. files with overlayfs xattrs) use cases
    
       - Various minor cleanups & fixes"
    
    * tag 'erofs-for-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
      erofs: cleanup i_format-related stuffs
      erofs: sunset erofs_dbg()
      erofs: fix potential overflow calculating xattr_isize
      erofs: get rid of z_erofs_fill_inode()
      erofs: enable long extended attribute name prefixes
      erofs: handle long xattr name prefixes properly
      erofs: add helpers to load long xattr name prefixes
      erofs: introduce on-disk format for long xattr name prefixes
      erofs: move packed inode out of the compression part
      erofs: keep meta inode into erofs_buf
      erofs: initialize packed inode after root inode is assigned
      erofs: stop parsing non-compact HEAD index if clusterofs is invalid
      erofs: don't warn ztailpacking feature anymore
      erofs: simplify erofs_xattr_generic_get()
      erofs: rename init_inode_xattrs with erofs_ prefix
      erofs: move several xattr helpers into xattr.c
      erofs: tidy up EROFS on-disk naming
      erofs: support flattened block device for multi-blob images
      erofs: set block size to the on-disk block size
      erofs: avoid hardcoded blocksize for subpage block support
    61d325dc
xattr.h 2.15 KB