Merge tag 'gpio-v4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux...

[karo-tx-linux.git] / Documentation / device-mapper / cache.txt

diff --git a/Documentation/device-mapper/cache.txt b/Documentation/device-mapper/cache.txt
index 82960cffbad346d73a8e47ebd188a54a9db4e4c1..785eab87aa71dc68aceeb970676a614c9c2c6381 100644 (file)
--- a/Documentation/device-mapper/cache.txt
+++ b/Documentation/device-mapper/cache.txt
@@ -258,6 +258,12 @@ cache metadata mode      : ro if read-only, rw if read-write
        no further I/O will be permitted and the status will just
        contain the string 'Fail'.  The userspace recovery tools
        should then be used.
+needs_check             : 'needs_check' if set, '-' if not set
+       A metadata operation has failed, resulting in the needs_check
+       flag being set in the metadata's superblock.  The metadata
+       device must be deactivated and checked/repaired before the
+       cache can be made fully operational again.  '-' indicates
+       needs_check is not set.
 
 Messages
 --------