diff options
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 2b482be199dc..d61cf0239fe0 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1779,6 +1779,13 @@ static int search_bitmap(struct btrfs_free_space_ctl *ctl, return -1; } +static inline u64 get_max_extent_size(struct btrfs_free_space *entry) +{ + if (entry->bitmap) + return entry->max_extent_size; + return entry->bytes; +} + /* Cache the size of the max extent in bytes */ static struct btrfs_free_space * find_free_space(struct btrfs_free_space_ctl *ctl, u64 *offset, u64 *bytes, @@ -1800,8 +1807,8 @@ find_free_space(struct btrfs_free_space_ctl *ctl, u64 *offset, u64 *bytes, for (node = &entry->offset_index; node; node = rb_next(node)) { entry = rb_entry(node, struct btrfs_free_space, offset_index); if (entry->bytes < *bytes) { - if (entry->bytes > *max_extent_size) - *max_extent_size = entry->bytes; + *max_extent_size = max(get_max_extent_size(entry), + *max_extent_size); continue; } @@ -1819,8 +1826,8 @@ find_free_space(struct btrfs_free_space_ctl *ctl, u64 *offset, u64 *bytes, } if (entry->bytes < *bytes + align_off) { - if (entry->bytes > *max_extent_size) - *max_extent_size = entry->bytes; + *max_extent_size = max(get_max_extent_size(entry), + *max_extent_size); continue; } @@ -1832,8 +1839,10 @@ find_free_space(struct btrfs_free_space_ctl *ctl, u64 *offset, u64 *bytes, *offset = tmp; *bytes = size; return entry; - } else if (size > *max_extent_size) { - *max_extent_size = size; + } else { + *max_extent_size = + max(get_max_extent_size(entry), + *max_extent_size); } continue; } @@ -2693,8 +2702,8 @@ static u64 btrfs_alloc_from_bitmap(struct btrfs_block_group_cache *block_group, err = search_bitmap(ctl, entry, &search_start, &search_bytes, true); if (err) { - if (search_bytes > *max_extent_size) - *max_extent_size = search_bytes; + *max_extent_size = max(get_max_extent_size(entry), + *max_extent_size); return 0; } @@ -2731,8 +2740,9 @@ u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group, entry = rb_entry(node, struct btrfs_free_space, offset_index); while (1) { - if (entry->bytes < bytes && entry->bytes > *max_extent_size) - *max_extent_size = entry->bytes; + if (entry->bytes < bytes) + *max_extent_size = max(get_max_extent_size(entry), + *max_extent_size); if (entry->bytes < bytes || (!entry->bitmap && entry->offset < min_start)) { |