If submit_extent_page() fails in write_one_eb(), we end up with the current
page not marked dirty anymore, unlocked and marked for writeback. But we never
end up calling end_page_writeback() against the page, which will make calls to
filemap_fdatawait_range (e.g. at transaction commit time) hang forever waiting
for the writeback bit to be cleared from the page.
Signed-off-by: Filipe Manana <fdman...@suse.com>
---
fs/btrfs/extent_io.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 3af4966..91f866c 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3668,6 +3668,7 @@ static noinline_for_stack int write_one_eb(struct
extent_buffer *eb,
if (ret) {
set_bit(EXTENT_BUFFER_IOERR, &eb->bflags);
SetPageError(p);
+ end_page_writeback(p);
if (atomic_sub_and_test(num_pages - i, &eb->io_pages))
end_extent_buffer_writeback(eb);
ret = -EIO;
--
1.9.1
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