This patch print the summary of the filesystem after the creation.
The main fileds printed are:
- devices list with their uuid, devid, path and size
- raid profile (dup,single,raid0...)
- leafsize/nodesize/sectorsize
- filesystem features (raid56, extref, mixed-bg)
If the '-v' switched is passed, the output is more verbose; if the '-q'
switched is passed, only the errors are printed.
Below an example:
# mkfs.btrfs -L btrfs-test -f -m raid5 -d raid5 /dev/vd[b-k]"
BTRFS filesystem summary:
Label: btrfs-test
UUID: 1073cb19-b675-423d-9aba-caad7f1508a8
Node size: 16384
Leaf size: 16384
Sector size: 4096
Initial chunks:
Data: 9.01GiB
Metadata: 3.61GiB
System: 18.06MiB
Metadata profile: RAID5
Data profile: RAID5
Mixed mode: NO
SSD detected: NO
Features: extref, raid56
Number of devices: 10
UUID ID SIZE PATH
------------------------------------ -- --------- -----------
62121322-5666-4ecf-bc8e-c9b3d9f60db9 1 50.00GiB /dev/vdb
6158cb13-3ae8-42b6-8603-660f1e5c8a7a 2 50.00GiB /dev/vdc
b49516db-ddf5-4f54-8831-a4babc79e901 3 50.00GiB /dev/vdd
00b03d81-7d29-4894-8050-9dd205f97c41 4 50.00GiB /dev/vde
f119a2ec-5ef0-436c-805e-c1b0612b05ca 5 50.00GiB /dev/vdf
adee4f58-e094-4bd4-8c56-941527524f8d 6 50.00GiB /dev/vdg
a8299171-2024-4057-ba56-1f83bf6d7e2e 7 50.00GiB /dev/vdh
b694e275-e454-4dbd-beb0-e33c388cffa2 8 2.00GiB /dev/vdi
7cbe04b5-36cd-4ea7-be82-206d5487914e 9 2.00GiB /dev/vdj
7c320654-675e-456b-ac23-cfb148b8ea57 10 2.00GiB /dev/vdk
Total disks size: 356.01GiB
Signed-off-by: Goffredo Baroncelli <kreij...@inwind.it>
---
mkfs.c | 170 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-----------
1 file changed, 142 insertions(+), 28 deletions(-)
diff --git a/mkfs.c b/mkfs.c
index 26f8041..e956903 100644
--- a/mkfs.c
+++ b/mkfs.c
@@ -26,6 +26,7 @@
#include "ioctl.h"
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/dir.h>
@@ -57,7 +58,16 @@ struct directory_name_entry {
struct list_head list;
};
-static int make_root_dir(struct btrfs_root *root, int mixed)
+struct block_group_allocation {
+ u64 data;
+ u64 metadata;
+ u64 mixed;
+ u64 system;
+};
+
+
+static int make_root_dir(struct btrfs_root *root, int mixed,
+ struct block_group_allocation *allocation)
{
struct btrfs_trans_handle *trans;
struct btrfs_key location;
@@ -74,6 +84,7 @@ static int make_root_dir(struct btrfs_root *root, int mixed)
BTRFS_BLOCK_GROUP_SYSTEM,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
0, BTRFS_MKFS_SYSTEM_GROUP_SIZE);
+ allocation->system += BTRFS_MKFS_SYSTEM_GROUP_SIZE;
BUG_ON(ret);
if (mixed) {
@@ -92,8 +103,8 @@ static int make_root_dir(struct btrfs_root *root, int mixed)
BTRFS_BLOCK_GROUP_DATA,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
+ allocation->mixed += chunk_size;
BUG_ON(ret);
- printf("Created a data/metadata chunk of size %llu\n",
chunk_size);
} else {
ret = btrfs_alloc_chunk(trans, root->fs_info->extent_root,
&chunk_start, &chunk_size,
@@ -107,6 +118,7 @@ static int make_root_dir(struct btrfs_root *root, int mixed)
BTRFS_BLOCK_GROUP_METADATA,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
+ allocation->metadata += chunk_size;
BUG_ON(ret);
}
@@ -128,6 +140,7 @@ static int make_root_dir(struct btrfs_root *root, int mixed)
BTRFS_BLOCK_GROUP_DATA,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
+ allocation->data += chunk_size;
BUG_ON(ret);
}
@@ -187,7 +200,9 @@ static void recow_roots(struct btrfs_trans_handle *trans,
}
static int create_one_raid_group(struct btrfs_trans_handle *trans,
- struct btrfs_root *root, u64 type)
+ struct btrfs_root *root, u64 type,
+ struct block_group_allocation *allocation)
+
{
u64 chunk_start;
u64 chunk_size;
@@ -203,6 +218,18 @@ static int create_one_raid_group(struct btrfs_trans_handle
*trans,
ret = btrfs_make_block_group(trans, root->fs_info->extent_root, 0,
type, BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
+ if ((type & BTRFS_BLOCK_GROUP_TYPE_MASK) == BTRFS_BLOCK_GROUP_DATA)
+ allocation->data += chunk_size;
+ else if ((type & BTRFS_BLOCK_GROUP_TYPE_MASK) ==
BTRFS_BLOCK_GROUP_METADATA)
+ allocation->metadata += chunk_size;
+ else if ((type & BTRFS_BLOCK_GROUP_TYPE_MASK) ==
BTRFS_BLOCK_GROUP_SYSTEM)
+ allocation->system += chunk_size;
+ else if ((type & BTRFS_BLOCK_GROUP_TYPE_MASK) ==
+ (BTRFS_BLOCK_GROUP_METADATA|BTRFS_BLOCK_GROUP_DATA))
+ allocation->mixed += chunk_size;
+ else
+ BUG_ON(1);
+
BUG_ON(ret);
return ret;
}
@@ -210,7 +237,8 @@ static int create_one_raid_group(struct btrfs_trans_handle
*trans,
static int create_raid_groups(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 data_profile,
int data_profile_opt, u64 metadata_profile,
- int mixed)
+ int mixed,
+ struct block_group_allocation *allocation)
{
u64 num_devices = btrfs_super_num_devices(root->fs_info->super_copy);
int ret;
@@ -220,21 +248,21 @@ static int create_raid_groups(struct btrfs_trans_handle
*trans,
ret = create_one_raid_group(trans, root,
BTRFS_BLOCK_GROUP_SYSTEM |
- metadata_profile);
+ metadata_profile, allocation);
BUG_ON(ret);
if (mixed)
meta_flags |= BTRFS_BLOCK_GROUP_DATA;
ret = create_one_raid_group(trans, root, meta_flags |
- metadata_profile);
+ metadata_profile, allocation);
BUG_ON(ret);
}
if (!mixed && num_devices > 1 && data_profile) {
ret = create_one_raid_group(trans, root,
BTRFS_BLOCK_GROUP_DATA |
- data_profile);
+ data_profile, allocation);
BUG_ON(ret);
}
recow_roots(trans, root);
@@ -920,7 +948,8 @@ static int open_target(char *output_name)
static int create_chunks(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 num_of_meta_chunks,
- u64 size_of_data)
+ u64 size_of_data,
+ struct block_group_allocation *allocation)
{
u64 chunk_start;
u64 chunk_size;
@@ -937,6 +966,7 @@ static int create_chunks(struct btrfs_trans_handle *trans,
ret = btrfs_make_block_group(trans, root->fs_info->extent_root,
0,
meta_type,
BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, chunk_size);
+ allocation->metadata += chunk_size;
BUG_ON(ret);
set_extent_dirty(&root->fs_info->free_space_cache,
chunk_start, chunk_start + chunk_size - 1, 0);
@@ -951,6 +981,7 @@ static int create_chunks(struct btrfs_trans_handle *trans,
ret = btrfs_make_block_group(trans, root->fs_info->extent_root, 0,
data_type, BTRFS_FIRST_CHUNK_TREE_OBJECTID,
chunk_start, size_of_data);
+ allocation->data += size_of_data;
BUG_ON(ret);
set_extent_dirty(&root->fs_info->free_space_cache,
chunk_start, chunk_start + size_of_data - 1, 0);
@@ -1221,6 +1252,21 @@ static void process_fs_features(u64 flags)
}
}
+static void print_fs_features(u64 flags)
+{
+ int i;
+ int first = 1;
+
+ for (i = 0; i < ARRAY_SIZE(mkfs_features); i++) {
+ if (flags & mkfs_features[i].flag) {
+ if (!first)
+ printf(", %s",mkfs_features[i].name);
+ else
+ printf("%s",mkfs_features[i].name);
+ first=0;
+ }
+ }
+}
/*
* Return NULL if all features were parsed fine, otherwise return the name of
@@ -1241,13 +1287,43 @@ static char* parse_fs_features(char *namelist, u64
*flags)
return NULL;
}
+static void list_all_devices(struct btrfs_root *root)
+{
+ struct btrfs_fs_devices *fs_devices;
+ struct btrfs_device *device;
+ int number_of_disks = 0;
+ u64 total_block_count = 0;
+
+ fs_devices = root->fs_info->fs_devices;
+
+ list_for_each_entry(device, &fs_devices->devices, dev_list)
+ number_of_disks++;
+
+ printf(" Number of devices:\t%d\n", number_of_disks);
+ printf(" UUID ID SIZE
PATH\n");
+ printf(" ------------------------------------ -- ---------
-----------\n");
+ list_for_each_entry_reverse(device, &fs_devices->devices, dev_list) {
+ char dev_uuid[BTRFS_UUID_UNPARSED_SIZE];
+
+ uuid_unparse(device->uuid, dev_uuid);
+ printf(" %s %3llu %10s %s\n",
+ dev_uuid, device->devid,
+ pretty_size(device->total_bytes),
+ device->name);
+ total_block_count += device->total_bytes;
+ }
+
+ printf("\n");
+ printf(" Total disks size: %10s\n",
+ pretty_size(total_block_count));
+}
+
int main(int ac, char **av)
{
char *file;
struct btrfs_root *root;
struct btrfs_trans_handle *trans;
char *label = NULL;
- char *first_file;
u64 block_count = 0;
u64 dev_block_count = 0;
u64 blocks[7];
@@ -1281,12 +1357,13 @@ int main(int ac, char **av)
int dev_cnt = 0;
int saved_optind;
char estr[100];
- char *fs_uuid = NULL;
+ char fs_uuid[BTRFS_UUID_UNPARSED_SIZE] = { 0 };
u64 features = DEFAULT_MKFS_FEATURES;
+ struct block_group_allocation allocation = { 0 };
while(1) {
int c;
- c = getopt_long(ac, av, "A:b:fl:n:s:m:d:L:O:r:U:VMK",
+ c = getopt_long(ac, av, "A:b:fl:n:s:m:d:L:O:r:U:VMKqv",
long_options, &option_index);
if (c < 0)
break;
@@ -1356,7 +1433,8 @@ int main(int ac, char **av)
source_dir_set = 1;
break;
case 'U':
- fs_uuid = optarg;
+ strncpy(fs_uuid,optarg,
+ BTRFS_UUID_UNPARSED_SIZE - 1);
break;
case 'K':
discard = 0;
@@ -1387,7 +1465,7 @@ int main(int ac, char **av)
exit(1);
}
- if (fs_uuid) {
+ if (*fs_uuid) {
uuid_t dummy_uuid;
if (uuid_parse(fs_uuid, dummy_uuid) != 0) {
@@ -1500,9 +1578,11 @@ int main(int ac, char **av)
exit(1);
}
- /* if we are here that means all devs are good to btrfsify */
- printf("%s\n", BTRFS_BUILD_VERSION);
- printf("See http://btrfs.wiki.kernel.org for more information.\n\n");
+ if (verbose) {
+ /* if we are here that means all devs are good to btrfsify */
+ printf("%s\n", BTRFS_BUILD_VERSION);
+ printf("See http://btrfs.wiki.kernel.org for more
information.\n\n");
+ }
dev_cnt--;
@@ -1518,7 +1598,6 @@ int main(int ac, char **av)
strerror(errno));
exit(1);
}
- first_file = file;
ret = btrfs_prepare_device(fd, file, zero_end, &dev_block_count,
block_count, &mixed, discard);
if (ret) {
@@ -1536,7 +1615,6 @@ int main(int ac, char **av)
exit(1);
}
- first_file = file;
source_dir_size = size_sourcedir(source_dir, sectorsize,
&num_of_meta_chunks,
&size_of_data);
if(block_count < source_dir_size)
@@ -1574,7 +1652,8 @@ int main(int ac, char **av)
features |= BTRFS_FEATURE_INCOMPAT_RAID56;
}
- process_fs_features(features);
+ if (verbose)
+ process_fs_features(features);
ret = make_btrfs(fd, file, label, fs_uuid, blocks, dev_block_count,
nodesize, leafsize,
@@ -1592,7 +1671,7 @@ int main(int ac, char **av)
}
root->fs_info->alloc_start = alloc_start;
- ret = make_root_dir(root, mixed);
+ ret = make_root_dir(root, mixed, &allocation);
if (ret) {
fprintf(stderr, "failed to setup the root directory\n");
exit(1);
@@ -1605,6 +1684,7 @@ int main(int ac, char **av)
if (dev_cnt == 0)
goto raid_groups;
+
while (dev_cnt-- > 0) {
int old_mixed = mixed;
@@ -1631,6 +1711,7 @@ int main(int ac, char **av)
}
ret = btrfs_prepare_device(fd, file, zero_end, &dev_block_count,
block_count, &mixed, discard);
+
if (ret) {
close(fd);
exit(1);
@@ -1638,7 +1719,8 @@ int main(int ac, char **av)
mixed = old_mixed;
ret = btrfs_add_to_fsid(trans, root, fd, file, dev_block_count,
- sectorsize, sectorsize, sectorsize);
+ sectorsize, sectorsize, sectorsize,
+ verbose);
BUG_ON(ret);
btrfs_register_one_device(file);
}
@@ -1647,24 +1729,20 @@ raid_groups:
if (!source_dir_set) {
ret = create_raid_groups(trans, root, data_profile,
data_profile_opt, metadata_profile,
- mixed);
+ mixed, &allocation);
BUG_ON(ret);
}
ret = create_data_reloc_tree(trans, root);
BUG_ON(ret);
- printf("fs created label %s on %s\n\tnodesize %u leafsize %u "
- "sectorsize %u size %s\n",
- label, first_file, nodesize, leafsize, sectorsize,
- pretty_size(btrfs_super_total_bytes(root->fs_info->super_copy)));
-
btrfs_commit_transaction(trans, root);
if (source_dir_set) {
trans = btrfs_start_transaction(root, 1);
ret = create_chunks(trans, root,
- num_of_meta_chunks, size_of_data);
+ num_of_meta_chunks, size_of_data,
+ &allocation);
BUG_ON(ret);
btrfs_commit_transaction(trans, root);
@@ -1672,6 +1750,42 @@ raid_groups:
BUG_ON(ret);
}
+ if (!quiet) {
+ printf("BTRFS filesystem summary:\n");
+ printf(" Label:\t\t%s\n", label);
+ printf(" UUID:\t\t\t%s\n", fs_uuid);
+ printf("\n");
+
+ printf(" Node size:\t\t%u\n", nodesize);
+ printf(" Leaf size:\t\t%u\n", leafsize);
+ printf(" Sector size:\t\t%u\n", sectorsize);
+ printf(" Initial chunks:\n");
+ if (allocation.data)
+ printf(" Data:\t\t%s\n",
+ pretty_size(allocation.data));
+ if (allocation.metadata)
+ printf(" Metadata:\t\t%s\n",
+ pretty_size(allocation.metadata));
+ if (allocation.mixed)
+ printf(" Data+Metadata:\t%s\n",
+ pretty_size(allocation.mixed));
+ printf(" System:\t\t%s\n",
+ pretty_size(allocation.system));
+ printf(" Metadata profile:\t%s\n",
+ group_profile_str(metadata_profile));
+ printf(" Data profile:\t\t%s\n",
+ group_profile_str(data_profile));
+ printf(" Mixed mode:\t\t%s\n", mixed ? "YES" : "NO");
+ printf(" SSD detected:\t\t%s\n", ssd ? "YES" : "NO");
+ printf(" Features:\t\t");
+ print_fs_features(features);
+ printf("\n");
+
+ list_all_devices(root);
+
+ }
+
+
ret = close_ctree(root);
BUG_ON(ret);
free(label);
--
2.1.3
--
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