Merge tag 'f2fs-for-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk...

[linux-2.6-microblaze.git] / Documentation / filesystems / f2fs.rst

diff --git a/Documentation/filesystems/f2fs.rst b/Documentation/filesystems/f2fs.rst
index 2965601..d0c0966 100644 (file)
--- a/Documentation/filesystems/f2fs.rst
+++ b/Documentation/filesystems/f2fs.rst
@@ -823,10 +823,11 @@ Compression implementation
   Instead, the main goal is to reduce data writes to flash disk as much as
   possible, resulting in extending disk life time as well as relaxing IO
   congestion. Alternatively, we've added ioctl(F2FS_IOC_RELEASE_COMPRESS_BLOCKS)
-  interface to reclaim compressed space and show it to user after putting the
-  immutable bit. Immutable bit, after release, it doesn't allow writing/mmaping
-  on the file, until reserving compressed space via
-  ioctl(F2FS_IOC_RESERVE_COMPRESS_BLOCKS) or truncating filesize to zero.
+  interface to reclaim compressed space and show it to user after setting a
+  special flag to the inode. Once the compressed space is released, the flag
+  will block writing data to the file until either the compressed space is
+  reserved via ioctl(F2FS_IOC_RESERVE_COMPRESS_BLOCKS) or the file size is
+  truncated to zero.
 
 Compress metadata layout::
 
@@ -835,12 +836,12 @@ Compress metadata layout::
                | cluster 1 | cluster 2 | ......... | cluster N |
                +-----------------------------------------------+
                .           .                       .           .
-       .                       .                .                      .
+         .                      .                .                      .
     .         Compressed Cluster       .        .        Normal Cluster            .
     +----------+---------+---------+---------+  +---------+---------+---------+---------+
     |compr flag| block 1 | block 2 | block 3 |  | block 1 | block 2 | block 3 | block 4 |
     +----------+---------+---------+---------+  +---------+---------+---------+---------+
-           .                             .
+              .                             .
            .                                           .
        .                                                           .
        +-------------+-------------+----------+----------------------------+