]> git.sesse.net Git - bcachefs-tools-debian/blobdiff - cmd_debug.c
Implement option parsing for fuse. The syntax is:
[bcachefs-tools-debian] / cmd_debug.c
index ca0f4530a4b5109fd2855fa36435a05ae26ef456..e11d495c544fd9e53ad67812a75e93fe30adc1a8 100644 (file)
@@ -4,30 +4,32 @@
 #include <sys/types.h>
 
 #include "cmds.h"
-#include "libbcache.h"
+#include "libbcachefs.h"
 #include "qcow2.h"
 #include "tools-util.h"
 
-#include "bcache.h"
-#include "alloc.h"
-#include "btree_cache.h"
-#include "btree_iter.h"
-#include "buckets.h"
-#include "journal.h"
-#include "super.h"
+#include "libbcachefs/bcachefs.h"
+#include "libbcachefs/bset.h"
+#include "libbcachefs/btree_cache.h"
+#include "libbcachefs/btree_iter.h"
+#include "libbcachefs/buckets.h"
+#include "libbcachefs/error.h"
+#include "libbcachefs/journal.h"
+#include "libbcachefs/super.h"
 
 static void dump_usage(void)
 {
-       puts("bcache dump - dump filesystem metadata\n"
-            "Usage: bcache dump [OPTION]... <devices>\n"
+       puts("bcachefs dump - dump filesystem metadata\n"
+            "Usage: bcachefs dump [OPTION]... <devices>\n"
             "\n"
             "Options:\n"
             "  -o output     Output qcow2 image(s)\n"
+            "  -f            Force; overwrite when needed\n"
             "  -h            Display this help and exit\n"
             "Report bugs to <linux-bcache@vger.kernel.org>");
 }
 
-static void dump_one_device(struct cache_set *c, struct cache *ca, int fd)
+static void dump_one_device(struct bch_fs *c, struct bch_dev *ca, int fd)
 {
        struct bch_sb *sb = ca->disk_sb.sb;
        ranges data;
@@ -54,19 +56,16 @@ static void dump_one_device(struct cache_set *c, struct cache *ca, int fd)
                                  bucket_bytes(ca));
                }
 
-       /* Prios/gens: */
-       for (i = 0; i < prio_buckets(ca); i++)
-               range_add(&data,
-                         bucket_bytes(ca) * ca->prio_last_buckets[i],
-                         bucket_bytes(ca));
-
        /* Btree: */
        for (i = 0; i < BTREE_ID_NR; i++) {
                const struct bch_extent_ptr *ptr;
-               struct btree_iter iter;
+               struct btree_trans trans;
+               struct btree_iter *iter;
                struct btree *b;
 
-               for_each_btree_node(&iter, c, i, POS_MIN, 0, b) {
+               bch2_trans_init(&trans, c, 0, 0);
+
+               for_each_btree_node(&trans, iter, i, POS_MIN, 0, b) {
                        struct bkey_s_c_extent e = bkey_i_to_s_c_extent(&b->key);
 
                        extent_for_each_ptr(e, ptr)
@@ -75,7 +74,7 @@ static void dump_one_device(struct cache_set *c, struct cache *ca, int fd)
                                                  ptr->offset << 9,
                                                  b->written << 9);
                }
-               bch_btree_iter_unlock(&iter);
+               bch2_trans_exit(&trans);
        }
 
        qcow2_write_image(ca->disk_sb.bdev->bd_fd, fd, &data,
@@ -84,18 +83,18 @@ static void dump_one_device(struct cache_set *c, struct cache *ca, int fd)
 
 int cmd_dump(int argc, char *argv[])
 {
-       struct bch_opts opts = bch_opts_empty();
-       struct cache_set *c = NULL;
-       const char *err;
+       struct bch_opts opts = bch2_opts_empty();
+       struct bch_dev *ca;
        char *out = NULL;
        unsigned i, nr_devices = 0;
        bool force = false;
        int fd, opt;
 
-       opts.nochanges  = true;
-       opts.noreplay   = true;
-       opts.errors     = BCH_ON_ERROR_CONTINUE;
-       fsck_err_opt    = FSCK_ERR_NO;
+       opt_set(opts, nochanges,        true);
+       opt_set(opts, norecovery,       true);
+       opt_set(opts, degraded,         true);
+       opt_set(opts, errors,           BCH_ON_ERROR_CONTINUE);
+       opt_set(opts, fix_errors,       FSCK_OPT_YES);
 
        while ((opt = getopt(argc, argv, "o:fh")) != -1)
                switch (opt) {
@@ -109,110 +108,153 @@ int cmd_dump(int argc, char *argv[])
                        dump_usage();
                        exit(EXIT_SUCCESS);
                }
-
-       if (optind >= argc)
-               die("Please supply device(s) to check");
+       args_shift(optind);
 
        if (!out)
                die("Please supply output filename");
 
-       err = bch_fs_open(argv + optind, argc - optind, opts, &c);
-       if (err)
-               die("error opening %s: %s", argv[optind], err);
+       if (!argc)
+               die("Please supply device(s) to check");
+
+       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)));
 
        down_read(&c->gc_lock);
 
-       for (i = 0; i < c->sb.nr_devices; i++)
-               if (c->cache[i])
-                       nr_devices++;
+       for_each_online_member(ca, c, i)
+               nr_devices++;
 
        BUG_ON(!nr_devices);
 
-       for (i = 0; i < c->sb.nr_devices; i++) {
-               int mode = O_WRONLY|O_CREAT|O_TRUNC;
+       for_each_online_member(ca, c, i) {
+               int flags = O_WRONLY|O_CREAT|O_TRUNC;
 
                if (!force)
-                       mode |= O_EXCL;
+                       flags |= O_EXCL;
 
-               if (!c->cache[i])
+               if (!c->devs[i])
                        continue;
 
                char *path = nr_devices > 1
                        ? mprintf("%s.%u", out, i)
                        : strdup(out);
-               fd = xopen(path, mode, 0600);
+               fd = xopen(path, flags, 0600);
                free(path);
 
-               dump_one_device(c, c->cache[i], fd);
+               dump_one_device(c, ca, fd);
                close(fd);
        }
 
        up_read(&c->gc_lock);
 
-       bch_fs_stop(c);
+       bch2_fs_stop(c);
        return 0;
 }
 
-static void list_keys(struct cache_set *c, enum btree_id btree_id,
-                     struct bpos start, struct bpos end, int mode)
+static void list_keys(struct bch_fs *c, enum btree_id btree_id,
+                     struct bpos start, struct bpos end)
 {
-       struct btree_iter iter;
+       struct btree_trans trans;
+       struct btree_iter *iter;
        struct bkey_s_c k;
        char buf[512];
+       int ret;
 
-       for_each_btree_key(&iter, c, btree_id, start, k) {
+       bch2_trans_init(&trans, c, 0, 0);
+
+       for_each_btree_key(&trans, iter, btree_id, start,
+                          BTREE_ITER_PREFETCH, k, ret) {
                if (bkey_cmp(k.k->p, end) > 0)
                        break;
 
-               bch_bkey_val_to_text(c, bkey_type(0, btree_id),
-                                    buf, sizeof(buf), k);
+               bch2_bkey_val_to_text(&PBUF(buf), c, k);
                puts(buf);
        }
-       bch_btree_iter_unlock(&iter);
+       bch2_trans_exit(&trans);
 }
 
-static void list_btree_formats(struct cache_set *c, enum btree_id btree_id,
-                              struct bpos start, struct bpos end, int mode)
+static void list_btree_formats(struct bch_fs *c, enum btree_id btree_id,
+                              struct bpos start, struct bpos end)
 {
-       struct btree_iter iter;
+       struct btree_trans trans;
+       struct btree_iter *iter;
        struct btree *b;
        char buf[4096];
 
-       for_each_btree_node(&iter, c, btree_id, start, 0, b) {
+       bch2_trans_init(&trans, c, 0, 0);
+
+       for_each_btree_node(&trans, iter, btree_id, start, 0, b) {
                if (bkey_cmp(b->key.k.p, end) > 0)
                        break;
 
-               bch_print_btree_node(c, b, buf, sizeof(buf));
+               bch2_btree_node_to_text(&PBUF(buf), c, b);
                puts(buf);
        }
-       bch_btree_iter_unlock(&iter);
+       bch2_trans_exit(&trans);
+}
+
+static void list_nodes_keys(struct bch_fs *c, enum btree_id btree_id,
+                           struct bpos start, struct bpos end)
+{
+       struct btree_trans trans;
+       struct btree_iter *iter;
+       struct btree_node_iter node_iter;
+       struct bkey unpacked;
+       struct bkey_s_c k;
+       struct btree *b;
+       char buf[4096];
+
+       bch2_trans_init(&trans, c, 0, 0);
+
+       for_each_btree_node(&trans, iter, btree_id, start, 0, b) {
+               if (bkey_cmp(b->key.k.p, end) > 0)
+                       break;
+
+               bch2_btree_node_to_text(&PBUF(buf), c, b);
+               fputs(buf, stdout);
+
+               for_each_btree_node_key_unpack(b, k, &node_iter, &unpacked) {
+                       bch2_bkey_val_to_text(&PBUF(buf), c, k);
+                       putchar('\t');
+                       puts(buf);
+               }
+       }
+       bch2_trans_exit(&trans);
 }
 
 static struct bpos parse_pos(char *buf)
 {
-       char *s = buf;
-       char *inode     = strsep(&s, ":");
-       char *offset    = strsep(&s, ":");
-       struct bpos ret = { 0 };
-
-       if (!inode || !offset || s ||
-           kstrtoull(inode, 10, &ret.inode) ||
-           kstrtoull(offset, 10, &ret.offset))
+       char *s = buf, *field;
+       u64 inode_v = 0, offset_v = 0;
+
+       if (!(field = strsep(&s, ":")) ||
+           kstrtoull(field, 10, &inode_v))
+               die("invalid bpos %s", buf);
+
+       if ((field = strsep(&s, ":")) &&
+           kstrtoull(field, 10, &offset_v))
                die("invalid bpos %s", buf);
 
-       return ret;
+       if (s)
+               die("invalid bpos %s", buf);
+
+       return (struct bpos) { .inode = inode_v, .offset = offset_v };
 }
 
 static void list_keys_usage(void)
 {
-       puts("bcache list_keys - list filesystem metadata to stdout\n"
-            "Usage: bcache list_keys [OPTION]... <devices>\n"
+       puts("bcachefs list - list filesystem metadata to stdout\n"
+            "Usage: bcachefs list [OPTION]... <devices>\n"
             "\n"
             "Options:\n"
             "  -b (extents|inodes|dirents|xattrs)    Btree to list from\n"
             "  -s inode:offset                       Start position to list from\n"
             "  -e inode:offset                       End position\n"
+            "  -i inode                              List keys for a given inode number\n"
             "  -m (keys|formats)                     List mode\n"
+            "  -f                                    Check (fsck) the filesystem first\n"
+            "  -v                                    Verbose mode\n"
             "  -h                                    Display this help and exit\n"
             "Report bugs to <linux-bcache@vger.kernel.org>");
 }
@@ -220,28 +262,28 @@ static void list_keys_usage(void)
 static const char * const list_modes[] = {
        "keys",
        "formats",
+       "nodes",
        NULL
 };
 
 int cmd_list(int argc, char *argv[])
 {
-       struct bch_opts opts = bch_opts_empty();
-       struct cache_set *c = NULL;
+       struct bch_opts opts = bch2_opts_empty();
        enum btree_id btree_id = BTREE_ID_EXTENTS;
        struct bpos start = POS_MIN, end = POS_MAX;
-       const char *err;
+       u64 inum;
        int mode = 0, opt;
 
-       opts.nochanges  = true;
-       opts.norecovery = true;
-       opts.errors     = BCH_ON_ERROR_CONTINUE;
-       fsck_err_opt    = FSCK_ERR_NO;
+       opt_set(opts, nochanges,        true);
+       opt_set(opts, norecovery,       true);
+       opt_set(opts, degraded,         true);
+       opt_set(opts, errors,           BCH_ON_ERROR_CONTINUE);
 
-       while ((opt = getopt(argc, argv, "b:s:e:m:h")) != -1)
+       while ((opt = getopt(argc, argv, "b:s:e:i:m:fvh")) != -1)
                switch (opt) {
                case 'b':
                        btree_id = read_string_list_or_die(optarg,
-                                               bch_btree_ids, "btree id");
+                                               bch2_btree_ids, "btree id");
                        break;
                case 's':
                        start   = parse_pos(optarg);
@@ -249,33 +291,50 @@ int cmd_list(int argc, char *argv[])
                case 'e':
                        end     = parse_pos(optarg);
                        break;
+               case 'i':
+                       if (kstrtoull(optarg, 10, &inum))
+                               die("invalid inode %s", optarg);
+                       start   = POS(inum, 0);
+                       end     = POS(inum + 1, 0);
+                       break;
                case 'm':
                        mode = read_string_list_or_die(optarg,
                                                list_modes, "list mode");
                        break;
+               case 'f':
+                       opt_set(opts, fix_errors, FSCK_OPT_YES);
+                       opt_set(opts, norecovery, false);
+                       break;
+               case 'v':
+                       opt_set(opts, verbose, true);
+                       break;
                case 'h':
                        list_keys_usage();
                        exit(EXIT_SUCCESS);
                }
+       args_shift(optind);
 
-       if (optind >= argc)
-               die("Please supply device(s) to check");
+       if (!argc)
+               die("Please supply device(s)");
 
-       err = bch_fs_open(argv + optind, argc - optind, opts, &c);
-       if (err)
-               die("error opening %s: %s", argv[optind], err);
+       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)));
 
        switch (mode) {
        case 0:
-               list_keys(c, btree_id, start, end, mode);
+               list_keys(c, btree_id, start, end);
                break;
        case 1:
-               list_btree_formats(c, btree_id, start, end, mode);
+               list_btree_formats(c, btree_id, start, end);
+               break;
+       case 2:
+               list_nodes_keys(c, btree_id, start, end);
                break;
        default:
                die("Invalid mode");
        }
 
-       bch_fs_stop(c);
+       bch2_fs_stop(c);
        return 0;
 }