diff options
Diffstat (limited to 'fs/btrfs/extent_io.c')
| -rw-r--r-- | fs/btrfs/extent_io.c | 31 |
1 files changed, 16 insertions, 15 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 4667d1e034e0..42c9899d9241 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -262,22 +262,23 @@ static noinline int lock_delalloc_folios(struct inode *inode, for (i = 0; i < found_folios; i++) { struct folio *folio = fbatch.folios[i]; - u32 len = end + 1 - start; + u64 range_start; + u32 range_len; if (folio == locked_folio) continue; - if (btrfs_folio_start_writer_lock(fs_info, folio, start, - len)) - goto out; - + folio_lock(folio); if (!folio_test_dirty(folio) || folio->mapping != mapping) { - btrfs_folio_end_writer_lock(fs_info, folio, start, - len); + folio_unlock(folio); goto out; } + range_start = max_t(u64, folio_pos(folio), start); + range_len = min_t(u64, folio_pos(folio) + folio_size(folio), + end + 1) - range_start; + btrfs_folio_set_writer_lock(fs_info, folio, range_start, range_len); - processed_end = folio_pos(folio) + folio_size(folio) - 1; + processed_end = range_start + range_len - 1; } folio_batch_release(&fbatch); cond_resched(); @@ -1306,6 +1307,13 @@ static int submit_one_sector(struct btrfs_inode *inode, free_extent_map(em); em = NULL; + /* + * Although the PageDirty bit is cleared before entering this + * function, subpage dirty bit is not cleared. + * So clear subpage dirty bit here so next time we won't submit + * a folio for a range already written to disk. + */ + btrfs_folio_clear_dirty(fs_info, folio, filepos, sectorsize); btrfs_set_range_writeback(inode, filepos, filepos + sectorsize - 1); /* * Above call should set the whole folio with writeback flag, even @@ -1315,13 +1323,6 @@ static int submit_one_sector(struct btrfs_inode *inode, */ ASSERT(folio_test_writeback(folio)); - /* - * Although the PageDirty bit is cleared before entering this - * function, subpage dirty bit is not cleared. - * So clear subpage dirty bit here so next time we won't submit - * folio for range already written to disk. - */ - btrfs_folio_clear_dirty(fs_info, folio, filepos, sectorsize); submit_extent_folio(bio_ctrl, disk_bytenr, folio, sectorsize, filepos - folio_pos(folio)); return 0; |