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| author | Chris Mason <chris.mason@oracle.com> | 2007-11-20 13:44:45 -0500 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:03:58 -0400 |
| commit | 7073c8e852946274e4d50fdf072438612f9dc845 (patch) | |
| tree | 4e2a1e366aeb0903504c77fef36d7f21eb7add38 /fs | |
| parent | 3e9fd94ff0028a044d55690eb0a801fd1472e3c6 (diff) | |
| download | linux-7073c8e852946274e4d50fdf072438612f9dc845.tar.bz2 | |
Btrfs: Make sure page mapping dirty tag is properly cleared
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/extent_map.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index 7fd4eb7a8f03..a4e9096754fc 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -1825,12 +1825,18 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, if (ret) SetPageError(page); else { - unsigned long nr = end_index + 1; + unsigned long max_nr = end_index + 1; set_range_writeback(tree, cur, cur + iosize - 1); + if (!PageWriteback(page)) { + printk("warning page %lu not writeback, " + "cur %llu end %llu\n", page->index, + (unsigned long long)cur, + (unsigned long long)end); + } ret = submit_extent_page(WRITE, tree, page, sector, iosize, page_offset, bdev, - &epd->bio, nr, + &epd->bio, max_nr, end_bio_extent_writepage); if (ret) SetPageError(page); @@ -1840,6 +1846,11 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, nr++; } done: + if (nr == 0) { + /* make sure the mapping tag for page dirty gets cleared */ + set_page_writeback(page); + end_page_writeback(page); + } unlock_extent(tree, start, page_end, GFP_NOFS); unlock_page(page); return 0; @@ -2408,6 +2419,13 @@ int clear_extent_buffer_dirty(struct extent_map_tree *tree, } } clear_page_dirty_for_io(page); + write_lock_irq(&page->mapping->tree_lock); + if (!PageDirty(page)) { + radix_tree_tag_clear(&page->mapping->page_tree, + page_index(page), + PAGECACHE_TAG_DIRTY); + } + write_unlock_irq(&page->mapping->tree_lock); unlock_page(page); } return 0; |