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btrfs-progs: mkfs: clean up default profile settings

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Extract the defaults for data and metadata profiles to a header and
use the symbolic names instead of hardcoding the profiles.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2020-07-21 12:13:27 +02:00
parent ffd3b4cda2
commit 071cb030a4
2 changed files with 26 additions and 5 deletions
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10
mkfs/common.h
View File

@ -28,6 +28,16 @@
#define BTRFS_MKFS_SYSTEM_GROUP_SIZE SZ_4M
#define BTRFS_MKFS_SMALL_VOLUME_SIZE SZ_1G
/*
* Default settings for block group types
*/
#define BTRFS_MKFS_DEFAULT_DATA_ONE_DEVICE 0 /* SINGLE */
#define BTRFS_MKFS_DEFAULT_META_ONE_DEVICE BTRFS_BLOCK_GROUP_DUP
#define BTRFS_MKFS_DEFAULT_META_ONE_DEVICE_SSD 0 /* SINGLE */
#define BTRFS_MKFS_DEFAULT_DATA_MULTI_DEVICE BTRFS_BLOCK_GROUP_RAID0
#define BTRFS_MKFS_DEFAULT_META_MULTI_DEVICE BTRFS_BLOCK_GROUP_RAID1
/*
* Tree root blocks created during mkfs
*/

21
mkfs/main.c
View File

@ -1144,19 +1144,30 @@ int BOX_MAIN(mkfs)(int argc, char **argv)
* For mixed groups defaults are single/single.
*/
if (!mixed) {
u64 tmp;
if (!metadata_profile_opt) {
if (dev_cnt == 1 && ssd && verbose)
printf("Detected a SSD, turning off metadata "
"duplication. Mkfs with -m dup if you want to "
"force metadata duplication.\n");
metadata_profile = (dev_cnt > 1) ?
BTRFS_BLOCK_GROUP_RAID1 : (ssd) ?
0: BTRFS_BLOCK_GROUP_DUP;
if (dev_cnt > 1) {
tmp = BTRFS_MKFS_DEFAULT_META_MULTI_DEVICE;
} else {
if (ssd)
tmp = BTRFS_MKFS_DEFAULT_META_ONE_DEVICE_SSD;
else
tmp = BTRFS_MKFS_DEFAULT_META_ONE_DEVICE;
}
metadata_profile = tmp;
}
if (!data_profile_opt) {
data_profile = (dev_cnt > 1) ?
BTRFS_BLOCK_GROUP_RAID0 : 0; /* raid0 or single */
if (dev_cnt > 1)
tmp = BTRFS_MKFS_DEFAULT_DATA_MULTI_DEVICE;
else
tmp = BTRFS_MKFS_DEFAULT_DATA_ONE_DEVICE;
data_profile = tmp;
}
} else {
u32 best_nodesize = max_t(u32, sysconf(_SC_PAGESIZE), sectorsize);