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btrfs-progs: corrupt-block: Add support for handling specific root when using -K option

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Currently the -K option supports corrupting items only in the default
root (which is the root tree). This makes it impossible to test the
free-space recovery (or any other) code for that matter. Fix it by
using the root corresponding to the one passed in -r (if any).

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2018-05-14 14:13:32 +03:00 committed by David Sterba
parent 32acc8eed2
commit 98eda1c098
1 changed files with 3 additions and 3 deletions
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6
btrfs-corrupt-block.c
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@ -114,7 +114,7 @@ static void print_usage(int ret)
printf("\t-i The inode item to corrupt (must also specify the field to corrupt)\n");
printf("\t-x The file extent item to corrupt (must also specify -i for the inode and -f for the field to corrupt)\n");
printf("\t-m The metadata block to corrupt (must also specify -f for the field to corrupt)\n");
printf("\t-K <u64,u8,u64> Corrupt the given key (must also specify -f for the field)\n");
printf("\t-K <u64,u8,u64> Corrupt the given key (must also specify -f for the field and optionally -r for the root)\n");
printf("\t-f The field in the item to corrupt\n");
printf("\t-I <u64,u8,u64> Corrupt an item corresponding to the passed key triplet (must also specify the field to corrupt and root for the item)\n");
printf("\t-D Corrupt a dir item, must specify key and field\n");
@ -449,7 +449,6 @@ static int corrupt_key(struct btrfs_root *root, struct btrfs_key *key,
struct btrfs_trans_handle *trans;
int ret;
root = root->fs_info->fs_root;
if (corrupt_field == BTRFS_KEY_BAD) {
fprintf(stderr, "Invalid field %s\n", field);
return -EINVAL;
@ -1364,7 +1363,8 @@ int main(int argc, char **argv)
if (should_corrupt_key) {
if (*field == 0)
print_usage(1);
ret = corrupt_key(root, &key, field);
ret = corrupt_key(target_root, &key, field);
goto out_close;
}
/*