diff options
authorGui Hecheng <>2014-05-21 16:03:57 +0800
committerDavid Sterba <>2014-08-22 14:39:32 +0200
commit8bf2f988bb98aad135741bf4265138f01fe4d423 (patch)
parent7165d9024df628593a6c6fe9fe50d02547105afc (diff)
btrfs-progs: clarify manpage for btrfstune seeding option
The btrfstune -S option accepts a positive value to enable seeding, and a zero to disable seeding, negtive is not allowed. Add "positive, zero, negative" sentences to btrfstune manpage. Signed-off-by: Gui Hecheng <> Signed-off-by: David Sterba <>
2 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/btrfstune.txt b/Documentation/btrfstune.txt
index 1309fb6a..bf44bdf7 100644
--- a/Documentation/btrfstune.txt
+++ b/Documentation/btrfstune.txt
@@ -17,8 +17,9 @@ enable/disable some extended features for btrfs.
-S <value>::
-Updates the seeding value, it forces a fs readonly so that you can use it to
-build other filesystems.
+Updates the seeding value.
+A positive value will enable seeding, zero will disable seeding, negtive is not allowed.
+Enable seeding forces a fs readonly so that you can use it to build other filesystems.
Enable extended inode refs.
diff --git a/btrfstune.c b/btrfstune.c
index 2c26fe9b..3f2f0cdc 100644
--- a/btrfstune.c
+++ b/btrfstune.c
@@ -100,9 +100,9 @@ static int enable_skinny_metadata(struct btrfs_root *root)
static void print_usage(void)
fprintf(stderr, "usage: btrfstune [options] device\n");
- fprintf(stderr, "\t-S value\tenable/disable seeding\n");
+ fprintf(stderr, "\t-S value\tpositive value will enable seeding, zero to disable, negative is not allowed\n");
fprintf(stderr, "\t-r \t\tenable extended inode refs\n");
- fprintf(stderr, "\t-x enable skinny metadata extent refs\n");
+ fprintf(stderr, "\t-x \t\tenable skinny metadata extent refs\n");
int main(int argc, char *argv[])