Signed-off-by: Wang Shilong
Signed-off-by: Qu Wenruo
---
V1->V2: GPLv3->GPLv2
---
btrfs-debug-tree.c| 2 +-
man/Makefile | 3 ++-
man/btrfs-debug-tree.8.in | 41 +
3 files changed, 44 insertions(+), 2 deletions(-)
create mode 100644 man/btrfs-debug-tree.8.in
diff --git a/btrfs-debug-tree.c b/btrfs-debug-tree.c
index bae7f94..dc912f1 100644
--- a/btrfs-debug-tree.c
+++ b/btrfs-debug-tree.c
@@ -195,7 +195,7 @@ int main(int ac, char **av)
if (!leaf) {
fprintf(stderr, "failed to read %llu\n",
(unsigned long long)block_only);
- return 0;
+ exit(1);
}
btrfs_print_tree(root, leaf, 0);
return 0;
diff --git a/man/Makefile b/man/Makefile
index 1ba23b5..e5c1f7c 100644
--- a/man/Makefile
+++ b/man/Makefile
@@ -11,7 +11,8 @@ man8dir = $(mandir)/man8
# list only those we use
.SUFFIXES: .in .gz
-MANPAGES = mkfs.btrfs.8.gz btrfsck.8.gz btrfs-image.8.gz btrfs.8.gz
+MANPAGES = mkfs.btrfs.8.gz btrfsck.8.gz btrfs-image.8.gz btrfs.8.gz \
+ btrfs-debug-tree.8.gz
INFILES = ${MANPAGES:.in=.gz}
all: $(MANPAGES)
diff --git a/man/btrfs-debug-tree.8.in b/man/btrfs-debug-tree.8.in
new file mode 100644
index 000..281fe98
--- /dev/null
+++ b/man/btrfs-debug-tree.8.in
@@ -0,0 +1,41 @@
+.TH BTRFS-DEBUG-TREE 8
+.SH NAME
+btrfs-debug-tree \- dump Btrfs filesystem metadata into stdout.
+.SH SYNOPSIS
+.B btrfs-debug-tree [\fIoptions\fP] \fI\fP
+.SH DESCRIPTION
+\fBbtrfs-debug-tree\fP is used to dump the whole tree of the given device.
+This is maybe useful for analyzing filesystem state or inconsistence and has
+a positive educational effect on understanding the internal structure.
+\fIdevice\fP is the device file where the filesystem is stored.
+
+\fIOptions\fP
+.IP "\fB-e\fP" 5
+print detailed extents info.
+.IP "\fB-d\fP" 5
+print info of btrfs device and root tree dirs only.
+.IP "\fB-r\fP" 5
+print info of roots only.
+.IP "\fB-b \fI\fP" 5
+print info of the specified block only.
+
+.SH EXIT CODE
+\fBbtrfs-debug-tree\fP will return 0 if no error happened.
+If any problems happened, 1 will be returned.
+
+.SH AUTHOR
+Written by Shilong Wang and Wenruo Qu.
+
+.SH COPYRIGHT
+Copyright \(co 2013 Fujitsu, Inc.
+License GPLv2: GNU GPL version 2 .
+.br
+This is free software: you are free to change and redistribute it. There
is NO WARRANTY, to the extent permitted by law.
+.SH AVAILABILITY
+.B btrfs-debug-tree
+is part of btrfs-progs. Btrfs is currently under heavy development,
+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.
+.SH SEE ALSO
+.BR mkfs.btrfs (8)
--
1.8.0.1
--
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