From 2b0d4908db8a2b6120be1617b50187b32b79e56e Mon Sep 17 00:00:00 2001 From: Miao Xie Date: Thu, 23 Feb 2012 15:52:05 +0800 Subject: [PATCH 2/3] Btrfs-progs, btrfs-corrupt-block: fix the wrong usage The old usage is a copy of btrfs-map-logical, it's wrong, fix it. Signed-off-by: Miao Xie --- btrfs-corrupt-block.c | 15 +++++++++------ 1 files changed, 9 insertions(+), 6 deletions(-) diff --git a/btrfs-corrupt-block.c b/btrfs-corrupt-block.c index 7051e99..124fb38 100644 --- a/btrfs-corrupt-block.c +++ b/btrfs-corrupt-block.c @@ -85,11 +85,14 @@ 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"); + fprintf(stderr, "\t-k Corrupt keys\n"); exit(1); } @@ -296,7 +299,7 @@ int main(int ac, char **av) while(1) { int c; - c = getopt_long(ac, av, "l:c:eEk", long_options, + c = getopt_long(ac, av, "l:c:b:eEk", long_options, &option_index); if (c < 0) break; -- 1.7.6.233.gd79bc