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btrfs: zoned: simplify btrfs_check_meta_write_pointer 

btrfs_check_meta_write_pointer() will always be called with a NULL
'cache_ret' argument.

As there's no need to check if we have a valid block_group passed in
remove these checks.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Johannes Thumshirn 2021-12-07 06:28:35 -08:00 committed by David Sterba
parent 869f4cdc73
commit 8fdf54fe69
1 changed files with 8 additions and 18 deletions
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26
fs/btrfs/zoned.c
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@ -1637,29 +1637,19 @@ bool btrfs_check_meta_write_pointer(struct btrfs_fs_info *fs_info,
if (!btrfs_is_zoned(fs_info))
return true;
cache = *cache_ret;
cache = btrfs_lookup_block_group(fs_info, eb->start);
if (!cache)
return true;
if (cache && (eb->start < cache->start ||
cache->start + cache->length <= eb->start)) {
if (cache->meta_write_pointer != eb->start) {
btrfs_put_block_group(cache);
cache = NULL;
*cache_ret = NULL;
ret = false;
} else {
cache->meta_write_pointer = eb->start + eb->len;
}
if (!cache)
cache = btrfs_lookup_block_group(fs_info, eb->start);
if (cache) {
if (cache->meta_write_pointer != eb->start) {
btrfs_put_block_group(cache);
cache = NULL;
ret = false;
} else {
cache->meta_write_pointer = eb->start + eb->len;
}
*cache_ret = cache;
}
*cache_ret = cache;
return ret;
}