[15/27] btrfs-progs: Convert man page for btrfs-dedup.
diff mbox

Message ID 1396427378-10487-16-git-send-email-quwenruo@cn.fujitsu.com
State Awaiting Upstream
Delegated to: David Sterba
Headers show

Commit Message

Qu Wenruo April 2, 2014, 8:29 a.m. UTC
Although the btrfs-dedup function is not available in mainline kernel,
add the man page any way and add a warning into it.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
 Documentation/Makefile        |  2 +-
 Documentation/btrfs-dedup.txt | 51 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/btrfs-dedup.txt

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diff --git a/Documentation/Makefile b/Documentation/Makefile
index a4f7ef0..4040951 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -29,7 +29,7 @@  MAN8_TXT += btrfs-receive.txt
 MAN8_TXT += btrfs-quota.txt
 MAN8_TXT += btrfs-qgroup.txt
 MAN8_TXT += btrfs-replace.txt
-#MAN8_TXT += btrfs-dedup.txt
+MAN8_TXT += btrfs-dedup.txt
 MAN_XML = $(patsubst %.txt,%.xml,$(MAN_TXT))
diff --git a/Documentation/btrfs-dedup.txt b/Documentation/btrfs-dedup.txt
new file mode 100644
index 0000000..d42cee6
--- /dev/null
+++ b/Documentation/btrfs-dedup.txt
@@ -0,0 +1,51 @@ 
+btrfs-dedup - control the deduplication in a btrfs filesystem
+'btrfs dedup' <subcommand> <args>
+WARNING: Deduplication function is not implemented in mainline kernel(v3.14
+yet). So most user may find this function not usable.
+'btrfs dedup' is used to control deduplication in a bttrfs filesystem.
+'enable' <path>::
+Enable data deduplication support for a filesystem.
+'disable' <path>::
+Disable data deduplication support for a filesystem.
+'on' [-b|--bs size] <path>::
+Switch on data deduplication or change the dedup blocksize.
+'off' <path>::
+Switch off data deduplication.
+'btrfs dedup' returns a zero exist status if it succeeds. Non zero is
+returned in case of failure.
+'btrfs' is part of btrfs-progs. Btrfs filesystem is currently under heavy
+and not suitable for any uses other than benchmarking and review.
+Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for
+further details.