1. 28 2月, 2017 12 次提交
  2. 17 2月, 2017 4 次提交
  3. 14 2月, 2017 4 次提交
  4. 10 12月, 2016 1 次提交
    • C
      fs: try to clone files first in vfs_copy_file_range · a76b5b04
      Christoph Hellwig 提交于
      A clone is a perfectly fine implementation of a file copy, so most
      file systems just implement the copy that way.  Instead of duplicating
      this logic move it to the VFS.  Currently btrfs and XFS implement copies
      the same way as clones and there is no behavior change for them, cifs
      only implements clones and grow support for copy_file_range with this
      patch.  NFS implements both, so this will allow copy_file_range to work
      on servers that only implement CLONE and be lot more efficient on servers
      that implements CLONE and COPY.
      Signed-off-by: NChristoph Hellwig <hch@lst.de>
      a76b5b04
  5. 09 12月, 2016 1 次提交
  6. 06 12月, 2016 8 次提交
  7. 30 11月, 2016 4 次提交
  8. 29 11月, 2016 1 次提交
  9. 04 10月, 2016 1 次提交
    • O
      Btrfs: catch invalid free space trees · 6675df31
      Omar Sandoval 提交于
      There are two separate issues that can lead to corrupted free space
      trees.
      
      1. The free space tree bitmaps had an endianness issue on big-endian
         systems which is fixed by an earlier patch in this series.
      2. btrfs-progs before v4.7.3 modified filesystems without updating the
         free space tree.
      
      To catch both of these issues at once, we need to force the free space
      tree to be rebuilt. To do so, add a FREE_SPACE_TREE_VALID compat_ro bit.
      If the bit isn't set, we know that it was either produced by a broken
      big-endian kernel or may have been corrupted by btrfs-progs.
      
      This also provides us with a way to add rudimentary read-write support
      for the free space tree to btrfs-progs: it can just clear this bit and
      have the kernel rebuild the free space tree.
      
      Cc: stable@vger.kernel.org # 4.5+
      Tested-by: NHolger Hoffstätte <holger@applied-asynchrony.com>
      Tested-by: NChandan Rajendra <chandan@linux.vnet.ibm.com>
      Signed-off-by: NOmar Sandoval <osandov@fb.com>
      Signed-off-by: NDavid Sterba <dsterba@suse.com>
      6675df31
  10. 27 9月, 2016 4 次提交