diff options
| -rw-r--r-- | fs/btrfs/extent_io.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 0782533aad51..2b6027ebf265 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -393,6 +393,13 @@ again: /* step one, find a bunch of delalloc bytes starting at start */ delalloc_start = *start; delalloc_end = 0; + + /* + * If @max_bytes is smaller than a block, btrfs_find_delalloc_range() can + * return early without handling any dirty ranges. + */ + ASSERT(max_bytes >= fs_info->sectorsize); + found = btrfs_find_delalloc_range(tree, &delalloc_start, &delalloc_end, max_bytes, &cached_state); if (!found || delalloc_end <= *start || delalloc_start > orig_end) { @@ -423,13 +430,14 @@ again: delalloc_end); ASSERT(!ret || ret == -EAGAIN); if (ret == -EAGAIN) { - /* some of the folios are gone, lets avoid looping by - * shortening the size of the delalloc range we're searching + /* + * Some of the folios are gone, lets avoid looping by + * shortening the size of the delalloc range we're searching. */ btrfs_free_extent_state(cached_state); cached_state = NULL; if (!loops) { - max_bytes = PAGE_SIZE; + max_bytes = fs_info->sectorsize; loops = 1; goto again; } else { |