--- /dev/null
+#include <fcntl.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "cmds.h"
+#include "libbcachefs.h"
+#include "tools-util.h"
+
+#include "libbcachefs/bcachefs.h"
+#include "libbcachefs/btree_iter.h"
+#include "libbcachefs/error.h"
+#include "libbcachefs/super.h"
+
+static void kill_btree_node_usage(void)
+{
+ puts("bcachefs kill_btree_node - make btree nodes unreadable\n"
+ "Usage: bcachefs kill_btree_node [OPTION]... <devices>\n"
+ "\n"
+ "Options:\n"
+ " -b (extents|inodes|dirents|xattrs) Btree to delete from\n"
+ " -l level Levle to delete from (0 == leaves)\n"
+ " -i index Index of btree node to kill\n"
+ " -h Display this help and exit\n"
+ "Report bugs to <linux-bcachefs@vger.kernel.org>");
+}
+
+int cmd_kill_btree_node(int argc, char *argv[])
+{
+ struct bch_opts opts = bch2_opts_empty();
+ enum btree_id btree_id = 0;
+ unsigned level = 0;
+ u64 node_index = 0;
+ int opt;
+
+ opt_set(opts, read_only, true);
+
+ while ((opt = getopt(argc, argv, "b:l:i:h")) != -1)
+ switch (opt) {
+ case 'b':
+ btree_id = read_string_list_or_die(optarg,
+ bch2_btree_ids, "btree id");
+ break;
+ case 'l':
+ if (kstrtouint(optarg, 10, &level) || level >= BTREE_MAX_DEPTH)
+ die("invalid level");
+ break;
+ case 'i':
+ if (kstrtoull(optarg, 10, &node_index))
+ die("invalid index %s", optarg);
+ break;
+ case 'h':
+ kill_btree_node_usage();
+ exit(EXIT_SUCCESS);
+ }
+ args_shift(optind);
+
+ if (!argc)
+ die("Please supply device(s)");
+
+ struct bch_fs *c = bch2_fs_open(argv, argc, opts);
+ if (IS_ERR(c))
+ die("error opening %s: %s", argv[0], strerror(-PTR_ERR(c)));
+
+ struct btree_trans trans;
+ struct btree_iter iter;
+ struct btree *b;
+ int ret;
+ void *zeroes;
+
+ ret = posix_memalign(&zeroes, c->opts.block_size, c->opts.block_size);
+ if (ret)
+ die("error %s from posix_memalign", strerror(ret));
+
+ bch2_trans_init(&trans, c, 0, 0);
+
+ __for_each_btree_node(&trans, iter, btree_id, POS_MIN, 0, level, 0, b, ret) {
+ if (b->c.level != level)
+ continue;
+
+ if (!node_index) {
+ struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(bkey_i_to_s_c(&b->key));
+ const struct bch_extent_ptr *ptr;
+
+ struct printbuf buf = PRINTBUF;
+
+ bch2_bkey_val_to_text(&buf, c, bkey_i_to_s_c(&b->key));
+ bch_info(c, "killing btree node %s", buf.buf);
+ printbuf_exit(&buf);
+
+ bkey_for_each_ptr(ptrs, ptr) {
+ struct bch_dev *ca = bch_dev_bkey_exists(c, ptr->dev);
+
+ ret = pwrite(ca->disk_sb.bdev->bd_fd, zeroes,
+ c->opts.block_size, ptr->offset << 9);
+ if (ret != c->opts.block_size) {
+ bch_err(c, "pwrite error: expected %u got %i %s",
+ c->opts.block_size, ret, strerror(errno));
+ ret = EXIT_FAILURE;
+ goto done;
+ }
+ }
+ goto done;
+ }
+
+ node_index--;
+ }
+ if (ret)
+ bch_err(c, "error %i walking btree nodes", ret);
+ else
+ bch_err(c, "node at specified index not found");
+ ret = EXIT_FAILURE;
+done:
+ bch2_trans_iter_exit(&trans, &iter);
+ bch2_trans_exit(&trans);
+
+ bch2_fs_stop(c);
+ return ret;
+}
#include "cmds.h"
#include "libbcachefs.h"
-#include "qcow2.h"
#include "tools-util.h"
#include "libbcachefs/bcachefs.h"
bch2_fs_stop(c);
return 0;
}
-
-static void kill_btree_node_usage(void)
-{
- puts("bcachefs kill_btree_node - make btree nodes unreadable\n"
- "Usage: bcachefs kill_btree_node [OPTION]... <devices>\n"
- "\n"
- "Options:\n"
- " -b (extents|inodes|dirents|xattrs) Btree to delete from\n"
- " -l level Levle to delete from (0 == leaves)\n"
- " -i index Index of btree node to kill\n"
- " -h Display this help and exit\n"
- "Report bugs to <linux-bcachefs@vger.kernel.org>");
-}
-
-int cmd_kill_btree_node(int argc, char *argv[])
-{
- struct bch_opts opts = bch2_opts_empty();
- enum btree_id btree_id = 0;
- unsigned level = 0;
- u64 node_index = 0;
- int opt;
-
- opt_set(opts, read_only, true);
-
- while ((opt = getopt(argc, argv, "b:l:i:h")) != -1)
- switch (opt) {
- case 'b':
- btree_id = read_string_list_or_die(optarg,
- bch2_btree_ids, "btree id");
- break;
- case 'l':
- if (kstrtouint(optarg, 10, &level) || level >= BTREE_MAX_DEPTH)
- die("invalid level");
- break;
- case 'i':
- if (kstrtoull(optarg, 10, &node_index))
- die("invalid index %s", optarg);
- break;
- case 'h':
- kill_btree_node_usage();
- exit(EXIT_SUCCESS);
- }
- args_shift(optind);
-
- if (!argc)
- die("Please supply device(s)");
-
- struct bch_fs *c = bch2_fs_open(argv, argc, opts);
- if (IS_ERR(c))
- die("error opening %s: %s", argv[0], strerror(-PTR_ERR(c)));
-
- struct btree_trans trans;
- struct btree_iter iter;
- struct btree *b;
- int ret;
- void *zeroes;
-
- ret = posix_memalign(&zeroes, c->opts.block_size, c->opts.block_size);
- if (ret)
- die("error %s from posix_memalign", strerror(ret));
-
- bch2_trans_init(&trans, c, 0, 0);
-
- __for_each_btree_node(&trans, iter, btree_id, POS_MIN, 0, level, 0, b, ret) {
- if (b->c.level != level)
- continue;
-
- if (!node_index) {
- struct bkey_ptrs_c ptrs = bch2_bkey_ptrs_c(bkey_i_to_s_c(&b->key));
- const struct bch_extent_ptr *ptr;
-
- struct printbuf buf = PRINTBUF;
-
- bch2_bkey_val_to_text(&buf, c, bkey_i_to_s_c(&b->key));
- bch_info(c, "killing btree node %s", buf.buf);
- printbuf_exit(&buf);
-
- bkey_for_each_ptr(ptrs, ptr) {
- struct bch_dev *ca = bch_dev_bkey_exists(c, ptr->dev);
-
- ret = pwrite(ca->disk_sb.bdev->bd_fd, zeroes,
- c->opts.block_size, ptr->offset << 9);
- if (ret != c->opts.block_size) {
- bch_err(c, "pwrite error: expected %u got %i %s",
- c->opts.block_size, ret, strerror(errno));
- ret = EXIT_FAILURE;
- goto done;
- }
- }
- goto done;
- }
-
- node_index--;
- }
- if (ret)
- bch_err(c, "error %i walking btree nodes", ret);
- else
- bch_err(c, "node at specified index not found");
- ret = EXIT_FAILURE;
-done:
- bch2_trans_iter_exit(&trans, &iter);
- bch2_trans_exit(&trans);
-
- bch2_fs_stop(c);
- return ret;
-}