Commit 1b55767d authored by Gao Xiang's avatar Gao Xiang
Browse files

erofs: fix broken illustration in documentation 

Illustration was broken after ReST conversion by accident.
(checked by 'make SPHINXDIRS="filesystems" htmldocs')

Link: https://lore.kernel.org/r/20210510162506.28637-1-xiang@kernel.org


Fixes: e66d8631 ("docs: filesystems: convert erofs.txt to ReST")
Reviewed-by: default avatarChao Yu <yuchao0@huawei.com>
Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: default avatarGao Xiang <xiang@kernel.org>
parent 6efb943b

Documentation/filesystems/erofs.rst

+59 −60
Original line number Diff line number Diff line
@@ -204,7 +204,6 @@ algorithm (could refer to the related source code). 
       \                          |                           * could have

        \                         |                             trailing '\0'

         \________________________| nameoff0



                             Directory block



Note that apart from the offset of the first filename, nameoff0 also indicates
@@ -216,21 +215,21 @@ Compression 
Currently, EROFS supports 4KB fixed-sized output transparent file compression,

as illustrated below::



	    |---- Variant-Length Extent ----|-------- VLE --------|----- VLE -----

          |<-    variable-sized extent    ->|<-       VLE         ->|

        clusterofs                        clusterofs              clusterofs

	    |                               |                     |   logical data

    _________v_______________________________v_____________________v_______________

    ... |    .        |             |        .    |             |  .          | ...

    ____|____.________|_____________|________.____|_____________|__.__________|____

	|-> cluster <-|-> cluster <-|-> cluster <-|-> cluster <-|-> cluster <-|

	    size          size          size          size          size

          |                                 |                       |

 _________v_________________________________v_______________________v________

 ... |    .         |              |        .     |              |  .   ...

 ____|____._________|______________|________.___ _|______________|__.________

     |-> lcluster <-|-> lcluster <-|-> lcluster <-|-> lcluster <-|

          size           size           size           size   .             .

           .                            .                .              .

            .                       .               .               .

             .                   .              .               .

	_______._____________._____________._____________._____________________

	    ... |             |             |             | ... physical data

	_______|_____________|_____________|_____________|_____________________

		|-> cluster <-|-> cluster <-|-> cluster <-|

       _______.______________.______________.______________._________________

          ... |              |              |              | ...

       _______|______________|______________|______________|_________________

              |-> pcluster <-|-> pcluster <-|-> pcluster <-|

                    size           size           size



Currently each on-disk physical cluster can contain 4KB (un)compressed data