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btrfs-progs: mkfs: unify zoned mode minimum size calc into btrfs_min_dev_size()

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We are going to implement a better minimum size calculation for the zoned
mode. Move the current logic to btrfs_min_dev_size() and unify the size
checking path.

Also, convert "int mixed" to "bool mixed" while at it.

Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Naohiro Aota 2024-05-29 16:13:18 +09:00 committed by David Sterba
parent 5ff2e9c069
commit 2190d77a1c
3 changed files with 16 additions and 18 deletions
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11
mkfs/common.c
View File

@ -811,13 +811,22 @@ static u64 btrfs_min_global_blk_rsv_size(u32 nodesize)
return (u64)nodesize << 10; return (u64)nodesize << 10;
} }
u64 btrfs_min_dev_size(u32 nodesize, int mixed, u64 meta_profile, u64 btrfs_min_dev_size(u32 nodesize, bool mixed, u64 zone_size, u64 meta_profile,
u64 data_profile) u64 data_profile)
{ {
u64 reserved = 0; u64 reserved = 0;
u64 meta_size; u64 meta_size;
u64 data_size; u64 data_size;
/*
* 2 zones for the primary superblock
* 1 zone for the system block group
* 1 zone for a metadata block group
* 1 zone for a data block group
*/
if (zone_size)
return 5 * zone_size;
if (mixed) if (mixed)
return 2 * (BTRFS_MKFS_SYSTEM_GROUP_SIZE + return 2 * (BTRFS_MKFS_SYSTEM_GROUP_SIZE +
btrfs_min_global_blk_rsv_size(nodesize)); btrfs_min_global_blk_rsv_size(nodesize));

2
mkfs/common.h
View File

@ -105,7 +105,7 @@ struct btrfs_mkfs_config {
int make_btrfs(int fd, struct btrfs_mkfs_config *cfg); int make_btrfs(int fd, struct btrfs_mkfs_config *cfg);
int btrfs_make_root_dir(struct btrfs_trans_handle *trans, int btrfs_make_root_dir(struct btrfs_trans_handle *trans,
struct btrfs_root *root, u64 objectid); struct btrfs_root *root, u64 objectid);
u64 btrfs_min_dev_size(u32 nodesize, int mixed, u64 meta_profile, u64 btrfs_min_dev_size(u32 nodesize, bool mixed, u64 zone_size, u64 meta_profile,
u64 data_profile); u64 data_profile);
int test_minimum_size(const char *file, u64 min_dev_size); int test_minimum_size(const char *file, u64 min_dev_size);
int is_vol_small(const char *file); int is_vol_small(const char *file);

21
mkfs/main.c
View File

@ -1588,8 +1588,9 @@ int BOX_MAIN(mkfs)(int argc, char **argv)
goto error; goto error;
} }
min_dev_size = btrfs_min_dev_size(nodesize, mixed, metadata_profile, min_dev_size = btrfs_min_dev_size(nodesize, mixed,
data_profile); opt_zoned ? zone_size(file) : 0,
metadata_profile, data_profile);
/* /*
* Enlarge the destination file or create a new one, using the size * Enlarge the destination file or create a new one, using the size
* calculated from source dir. * calculated from source dir.
@ -1649,20 +1650,8 @@ int BOX_MAIN(mkfs)(int argc, char **argv)
/* Check device/byte_count after the nodesize is determined */ /* Check device/byte_count after the nodesize is determined */
if (byte_count && byte_count < min_dev_size) { if (byte_count && byte_count < min_dev_size) {
error("size %llu is too small to make a usable filesystem", byte_count); error("size %llu is too small to make a usable filesystem", byte_count);
error("minimum size for btrfs filesystem is %llu", error("minimum size for a %sbtrfs filesystem is %llu",
min_dev_size); opt_zoned ? "zoned mode " : "", min_dev_size);
goto error;
}
/*
* 2 zones for the primary superblock
* 1 zone for the system block group
* 1 zone for a metadata block group
* 1 zone for a data block group
*/
if (opt_zoned && byte_count && byte_count < 5 * zone_size(file)) {
error("size %llu is too small to make a usable filesystem", byte_count);
error("minimum size for a zoned btrfs filesystem is %llu",
min_dev_size);
goto error; goto error;
} }