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btrfs-progs: drop alloc_chunk_ctl::stripe_len 

Since commit b9444efb66 ("btrfs-progs: don't pretend RAID56 has a
different stripe length"), alloc_chunk_ctl::stripe_len is always fixed
to BTRFS_STRIPE_LEN. Let's replace alloc_chunk_ctl::stripe_len with
BTRFS_STRIPE_LEN, like in the kernel code.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Naohiro Aota 2021-04-06 17:05:52 +09:00 committed by David Sterba
parent a135b1392b
commit fa114477dc
1 changed files with 8 additions and 11 deletions
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19
kernel-shared/volumes.c
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@ -159,7 +159,6 @@ struct alloc_chunk_ctl {
u64 min_stripe_size;
u64 num_bytes;
u64 max_chunk_size;
int stripe_len;
int total_devs;
u64 dev_offset;
};
@ -1057,7 +1056,6 @@ static void init_alloc_chunk_ctl(struct btrfs_fs_info *info,
ctl->calc_size = SZ_8M;
ctl->min_stripe_size = SZ_1M;
ctl->max_chunk_size = 4 * ctl->calc_size;
ctl->stripe_len = BTRFS_STRIPE_LEN;
ctl->total_devs = btrfs_super_num_devices(info->super_copy);
ctl->dev_offset = 0;
@ -1098,13 +1096,13 @@ static int decide_stripe_size_regular(struct alloc_chunk_ctl *ctl)
if (chunk_size > ctl->max_chunk_size) {
ctl->calc_size = ctl->max_chunk_size;
ctl->calc_size /= ctl->num_stripes;
ctl->calc_size = round_down(ctl->calc_size, ctl->stripe_len);
ctl->calc_size = round_down(ctl->calc_size, BTRFS_STRIPE_LEN);
}
/* We don't want tiny stripes */
ctl->calc_size = max_t(u64, ctl->calc_size, ctl->min_stripe_size);
/* Align to the stripe length */
ctl->calc_size = round_down(ctl->calc_size, ctl->stripe_len);
ctl->calc_size = round_down(ctl->calc_size, BTRFS_STRIPE_LEN);
return 0;
}
@ -1206,17 +1204,17 @@ static int create_chunk(struct btrfs_trans_handle *trans,
/* key was set above */
btrfs_set_stack_chunk_length(chunk, ctl->num_bytes);
btrfs_set_stack_chunk_owner(chunk, extent_root->root_key.objectid);
btrfs_set_stack_chunk_stripe_len(chunk, ctl->stripe_len);
btrfs_set_stack_chunk_stripe_len(chunk, BTRFS_STRIPE_LEN);
btrfs_set_stack_chunk_type(chunk, ctl->type);
btrfs_set_stack_chunk_num_stripes(chunk, ctl->num_stripes);
btrfs_set_stack_chunk_io_align(chunk, ctl->stripe_len);
btrfs_set_stack_chunk_io_width(chunk, ctl->stripe_len);
btrfs_set_stack_chunk_io_align(chunk, BTRFS_STRIPE_LEN);
btrfs_set_stack_chunk_io_width(chunk, BTRFS_STRIPE_LEN);
btrfs_set_stack_chunk_sector_size(chunk, info->sectorsize);
btrfs_set_stack_chunk_sub_stripes(chunk, ctl->sub_stripes);
map->sector_size = info->sectorsize;
map->stripe_len = ctl->stripe_len;
map->io_align = ctl->stripe_len;
map->io_width = ctl->stripe_len;
map->stripe_len = BTRFS_STRIPE_LEN;
map->io_align = BTRFS_STRIPE_LEN;
map->io_width = BTRFS_STRIPE_LEN;
map->type = ctl->type;
map->num_stripes = ctl->num_stripes;
map->sub_stripes = ctl->sub_stripes;
@ -1369,7 +1367,6 @@ int btrfs_alloc_data_chunk(struct btrfs_trans_handle *trans,
ctl.min_stripe_size = num_bytes;
ctl.num_bytes = num_bytes;
ctl.max_chunk_size = num_bytes;
ctl.stripe_len = BTRFS_STRIPE_LEN;
ctl.total_devs = btrfs_super_num_devices(info->super_copy);
ctl.dev_offset = *start;