X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=cmd_fs.c;h=6bf00c03f7b9c217a852d83fa3743499c5d94e13;hb=b1a2ab6eeffc62d32f648d9267dc101da77567d1;hp=44316fc5d3773e18f624b8744dc1f1eb0625599f;hpb=9c62b2b4f11374cbffe88e0c31b9b1ab32a2863a;p=bcachefs-tools-debian

diff --git a/cmd_fs.c b/cmd_fs.c
index 44316fc..6bf00c0 100644
--- a/cmd_fs.c
+++ b/cmd_fs.c
@@ -14,146 +14,309 @@
 #include "cmds.h"
 #include "libbcachefs.h"
 
-static void print_dev_usage(struct bch_ioctl_dev_usage *d, unsigned idx,
-			    const char *label, enum units units)
+static void dev_usage_type_to_text(struct printbuf *out,
+				   const char *type,
+				   unsigned bucket_size,
+				   u64 buckets, u64 sectors)
 {
-	char *name = NULL;
-	u64 available = d->nr_buckets;
+	u64 frag = max((s64) buckets * bucket_size - (s64) sectors, 0LL);
+
+	pr_buf(out, "%s:", type);
+	pr_tab(out);
+	pr_sectors(out, sectors);
+	pr_tab_rjust(out);
+	pr_buf(out, "%llu", buckets);
+	pr_tab_rjust(out);
+	pr_sectors(out, frag);
+	pr_tab_rjust(out);
+	pr_newline(out);
+}
+
+static void dev_usage_to_text(struct printbuf *out,
+			      struct bchfs_handle fs,
+			      struct dev_name *d)
+{
+	struct bch_ioctl_dev_usage u = bchu_dev_usage(fs, d->idx);
 	unsigned i;
 
-	printf("\n");
-	printf_pad(20, "%s (device %u):", label, idx);
+	pr_newline(out);
+	pr_buf(out, "%s (device %u):", d->label ?: "(no label)", d->idx);
+	pr_tab(out);
+	pr_buf(out, "%s", d->dev ?: "(device not found)");
+	pr_tab_rjust(out);
 
-	name = !d->dev ? strdup("(offline)")
-		: dev_to_path(d->dev)
-		?: strdup("(device not found)");
-	printf("%24s%12s\n", name, bch2_dev_state[d->state]);
-	free(name);
+	pr_buf(out, "%s", bch2_member_states[u.state]);
+	pr_tab_rjust(out);
 
-	printf("%-20s%12s%12s%12s\n",
-	       "", "data", "buckets", "fragmented");
+	pr_newline(out);
 
-	for (i = BCH_DATA_SB; i < BCH_DATA_NR; i++) {
-		u64 frag = max((s64) d->buckets[i] * d->bucket_size -
-			       (s64) d->sectors[i], 0LL);
+	pr_indent_push(out, 2);
+	pr_tab(out);
 
-		printf_pad(20, "  %s:", bch2_data_types[i]);
-		printf("%12s%12llu%12s\n",
-		       pr_units(d->sectors[i], units),
-		       d->buckets[i],
-		       pr_units(frag, units));
+	pr_buf(out, "data");
+	pr_tab_rjust(out);
 
-		if (i != BCH_DATA_CACHED)
-			available -= d->buckets[i];
-	}
+	pr_buf(out, "buckets");
+	pr_tab_rjust(out);
 
-	printf_pad(20, "  available:");
-	printf("%12s%12llu\n",
-	       pr_units(available * d->bucket_size, units),
-	       available);
+	pr_buf(out, "fragmented");
+	pr_tab_rjust(out);
 
-	printf_pad(20, "  capacity:");
-	printf("%12s%12llu\n",
-	       pr_units(d->nr_buckets * d->bucket_size, units),
-	       d->nr_buckets);
-}
+	pr_newline(out);
+
+	for (i = BCH_DATA_sb; i < BCH_DATA_NR; i++)
+		dev_usage_type_to_text(out,
+				       bch2_data_types[i],
+				       u.bucket_size,
+				       u.buckets[i],
+				       u.sectors[i]);
+
+	dev_usage_type_to_text(out,
+			       "erasure coded",
+			       u.bucket_size,
+			       u.ec_buckets,
+			       u.ec_sectors);
+
+	pr_buf(out, "available:");
+	pr_tab(out);
+
+	pr_sectors(out, u.available_buckets * u.bucket_size);
+	pr_tab_rjust(out);
+
+	pr_buf(out, "%llu", u.available_buckets);
+	pr_tab_rjust(out);
+	pr_newline(out);
+
+	pr_buf(out, "capacity:");
+	pr_tab(out);
+
+	pr_sectors(out, u.nr_buckets * u.bucket_size);
+	pr_tab_rjust(out);
+	pr_buf(out, "%llu", u.nr_buckets);
+	pr_tab_rjust(out);
+
+	pr_indent_pop(out, 2);
 
-struct dev_by_label {
-	unsigned	idx;
-	char		*label;
-};
+	pr_newline(out);
+}
 
 static int dev_by_label_cmp(const void *_l, const void *_r)
 {
-	const struct dev_by_label *l = _l, *r = _r;
+	const struct dev_name *l = _l, *r = _r;
 
-	return strcmp(l->label, r->label);
+	return  (l->label && r->label
+		 ? strcmp(l->label, r->label) : 0) ?:
+		(l->dev && r->dev
+		 ? strcmp(l->dev, r->dev) : 0) ?:
+		cmp_int(l->idx, r->idx);
 }
 
-static void print_fs_usage(const char *path, enum units units)
+static struct dev_name *dev_idx_to_name(dev_names *dev_names, unsigned idx)
 {
-	unsigned i, j;
-	char uuid[40];
+	struct dev_name *dev;
 
-	struct bchfs_handle fs = bcache_fs_open(path);
-	struct bch_ioctl_usage *u = bchu_usage(fs);
+	darray_foreach(dev, *dev_names)
+		if (dev->idx == idx)
+			return dev;
+
+	return NULL;
+}
+
+static void replicas_usage_to_text(struct printbuf *out,
+				   const struct bch_replicas_usage *r,
+				   dev_names *dev_names)
+{
+	unsigned i;
 
-	uuid_unparse(fs.uuid.b, uuid);
-	printf("Filesystem %s:\n", uuid);
+	if (!r->sectors)
+		return;
 
-	printf("%-20s%12s\n", "Size:", pr_units(u->fs.capacity, units));
-	printf("%-20s%12s\n", "Used:", pr_units(u->fs.used, units));
+	char devs[4096], *d = devs;
+	*d++ = '[';
 
-	printf("%-20s%12s%12s%12s%12s\n",
-	       "By replicas:", "1x", "2x", "3x", "4x");
+	for (i = 0; i < r->r.nr_devs; i++) {
+		unsigned dev_idx = r->r.devs[i];
+		struct dev_name *dev = dev_idx_to_name(dev_names, dev_idx);
 
-	for (j = BCH_DATA_SB; j < BCH_DATA_NR; j++) {
-		printf_pad(20, "  %s:", bch2_data_types[j]);
+		if (i)
+			*d++ = ' ';
 
-		for (i = 0; i < BCH_REPLICAS_MAX; i++)
-			printf("%12s", pr_units(u->fs.sectors[j][i], units));
-		printf("\n");
+		d += dev && dev->dev
+			? sprintf(d, "%s", dev->dev)
+			: sprintf(d, "%u", dev_idx);
 	}
+	*d++ = ']';
+	*d++ = '\0';
 
-	printf_pad(20, "  %s:", "reserved");
-	for (i = 0; i < BCH_REPLICAS_MAX; i++)
-		printf("%12s", pr_units(u->fs.persistent_reserved[i], units));
-	printf("\n");
+	pr_buf(out, "%s: ", bch2_data_types[r->r.data_type]);
+	pr_tab(out);
 
-	printf("%-20s%12s\n", "  online reserved:", pr_units(u->fs.online_reserved, units));
+	pr_buf(out, "%u/%u ", r->r.nr_required, r->r.nr_devs);
+	pr_tab(out);
 
-	darray(struct dev_by_label) devs_by_label;
-	darray_init(devs_by_label);
+	pr_buf(out, "%s ", devs);
+	pr_tab(out);
 
-	for (i = 0; i < u->nr_devices; i++) {
-		struct bch_ioctl_dev_usage *d = u->devs + i;
+	pr_sectors(out, r->sectors);
+	pr_tab_rjust(out);
+	pr_newline(out);
+}
 
-		if (!d->alive)
-			continue;
+#define for_each_usage_replica(_u, _r)					\
+	for (_r = (_u)->replicas;					\
+	     _r != (void *) (_u)->replicas + (_u)->replica_entries_bytes;\
+	     _r = replicas_usage_next(_r),				\
+	     BUG_ON((void *) _r > (void *) (_u)->replicas + (_u)->replica_entries_bytes))
+
+static void fs_usage_to_text(struct printbuf *out, const char *path)
+{
+	unsigned i;
+
+	struct bchfs_handle fs = bcache_fs_open(path);
+
+	struct dev_name *dev;
+	dev_names dev_names = bchu_fs_get_devices(fs);
+
+	struct bch_ioctl_fs_usage *u = bchu_fs_usage(fs);
+
+	pr_buf(out, "Filesystem: ");
+	pr_uuid(out, fs.uuid.b);
+	pr_newline(out);
+
+	out->tabstops[0] = 20;
+	out->tabstops[1] = 36;
+
+	pr_buf(out, "Size:");
+	pr_tab(out);
+	pr_sectors(out, u->capacity);
+	pr_tab_rjust(out);
+	pr_newline(out);
+
+	pr_buf(out, "Used:");
+	pr_tab(out);
+	pr_sectors(out, u->used);
+	pr_tab_rjust(out);
+	pr_newline(out);
+
+	pr_buf(out, "Online reserved:");
+	pr_tab(out);
+	pr_sectors(out, u->online_reserved);
+	pr_tab_rjust(out);
+	pr_newline(out);
+
+	pr_newline(out);
+
+	out->tabstops[0] = 16;
+	out->tabstops[1] = 32;
+	out->tabstops[2] = 50;
+	out->tabstops[3] = 68;
+
+	pr_buf(out, "Data type");
+	pr_tab(out);
+
+	pr_buf(out, "Required/total");
+	pr_tab(out);
+
+	pr_buf(out, "Devices");
+	pr_newline(out);
 
-		char *label_attr = mprintf("dev-%u/label", i);
-		char *label = read_file_str(fs.sysfs_fd, label_attr);
-		free(label_attr);
+	for (i = 0; i < BCH_REPLICAS_MAX; i++) {
+		if (!u->persistent_reserved[i])
+			continue;
 
-		darray_append(devs_by_label,
-			(struct dev_by_label) { i, label });
+		pr_buf(out, "reserved:");
+		pr_tab(out);
+		pr_buf(out, "%u/%u ", 1, i);
+		pr_tab(out);
+		pr_buf(out, "[] ");
+		pr_sectors(out, u->persistent_reserved[i]);
+		pr_tab_rjust(out);
+		pr_newline(out);
 	}
 
-	sort(&darray_item(devs_by_label, 0), darray_size(devs_by_label),
-	     sizeof(darray_item(devs_by_label, 0)), dev_by_label_cmp, NULL);
+	struct bch_replicas_usage *r;
+
+	for_each_usage_replica(u, r)
+		if (r->r.data_type < BCH_DATA_user)
+			replicas_usage_to_text(out, r, &dev_names);
 
-	struct dev_by_label *d;
-	darray_foreach(d, devs_by_label)
-		print_dev_usage(u->devs + d->idx, d->idx, d->label, units);
+	for_each_usage_replica(u, r)
+		if (r->r.data_type == BCH_DATA_user &&
+		    r->r.nr_required <= 1)
+			replicas_usage_to_text(out, r, &dev_names);
 
-	darray_foreach(d, devs_by_label)
-		free(d->label);
-	darray_free(devs_by_label);
+	for_each_usage_replica(u, r)
+		if (r->r.data_type == BCH_DATA_user &&
+		    r->r.nr_required > 1)
+			replicas_usage_to_text(out, r, &dev_names);
+
+	for_each_usage_replica(u, r)
+		if (r->r.data_type > BCH_DATA_user)
+			replicas_usage_to_text(out, r, &dev_names);
 
 	free(u);
+
+	sort(&darray_item(dev_names, 0), darray_size(dev_names),
+	     sizeof(darray_item(dev_names, 0)), dev_by_label_cmp, NULL);
+
+	out->tabstops[0] = 16;
+	out->tabstops[1] = 36;
+	out->tabstops[2] = 52;
+	out->tabstops[3] = 68;
+
+	darray_foreach(dev, dev_names)
+		dev_usage_to_text(out, fs, dev);
+
+	darray_foreach(dev, dev_names) {
+		free(dev->dev);
+		free(dev->label);
+	}
+	darray_free(dev_names);
+
 	bcache_fs_close(fs);
 }
 
+int fs_usage(void)
+{
+       puts("bcachefs fs - manage a running filesystem\n"
+            "Usage: bcachefs fs <CMD> [OPTION]... path\n"
+            "\n"
+            "Commands:\n"
+            "  usage                      show disk usage\n"
+            "\n"
+            "Report bugs to <linux-bcachefs@vger.kernel.org>");
+       return 0;
+}
+
 int cmd_fs_usage(int argc, char *argv[])
 {
-	enum units units = BYTES;
+	enum printbuf_units units = PRINTBUF_UNITS_BYTES;
+	struct printbuf buf = PRINTBUF;
 	char *fs;
 	int opt;
 
 	while ((opt = getopt(argc, argv, "h")) != -1)
 		switch (opt) {
 		case 'h':
-			units = HUMAN_READABLE;
+			units = PRINTBUF_UNITS_HUMAN_READABLE;
 			break;
 		}
 	args_shift(optind);
 
 	if (!argc) {
-		print_fs_usage(".", units);
+		printbuf_reset(&buf);
+		buf.units = units;
+		fs_usage_to_text(&buf, ".");
+		printf("%s", buf.buf);
 	} else {
-		while ((fs = arg_pop()))
-			print_fs_usage(fs, units);
+		while ((fs = arg_pop())) {
+			printbuf_reset(&buf);
+			buf.units = units;
+			fs_usage_to_text(&buf, fs);
+			printf("%s", buf.buf);
+		}
 	}
 
+	printbuf_exit(&buf);
 	return 0;
 }