The old usage is a copy of btrfs-map-logical, it's wrong, fix it.
Signed-off-by: Miao Xie <mi...@cn.fujitsu.com>
---
This patch is against dangerdonteveruse branch.
---
btrfs-corrupt-block.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/btrfs-corrupt-block.c b/btrfs-corrupt-block.c
index 9ad3e05..df84c81 100644
--- a/btrfs-corrupt-block.c
+++ b/btrfs-corrupt-block.c
@@ -85,11 +85,13 @@ struct extent_buffer *debug_corrupt_block(struct btrfs_root
*root, u64 bytenr,
static void print_usage(void)
{
- fprintf(stderr, "usage: btrfs-map-logical [options] mount_point\n");
- fprintf(stderr, "\t-l Logical extent to map\n");
- fprintf(stderr, "\t-c Copy of the extent to read (usually 1 or 2)\n");
- fprintf(stderr, "\t-o Output file to hold the extent\n");
- fprintf(stderr, "\t-b Number of bytes to read\n");
+ fprintf(stderr, "usage: btrfs-corrupt-block [options] device\n");
+ fprintf(stderr, "\t-l Logical extent to be corrupted\n");
+ fprintf(stderr, "\t-c Copy of the extent to be corrupted"
+ " (usually 1 or 2, default: 0)\n");
+ fprintf(stderr, "\t-b Number of bytes to be corrupted\n");
+ fprintf(stderr, "\t-e Extent to be corrupted\n");
+ fprintf(stderr, "\t-E The whole extent free to be corrupted\n");
exit(1);
}
@@ -244,7 +246,7 @@ int main(int ac, char **av)
while(1) {
int c;
- c = getopt_long(ac, av, "l:c:eE", long_options,
+ c = getopt_long(ac, av, "l:c:b:eE", long_options,
&option_index);
if (c < 0)
break;
--
1.7.6.5
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