diff options
Diffstat (limited to '')
| -rw-r--r-- | fs/iomap/buffered-io.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index de47698a029a..db7a3ff92e61 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -1242,7 +1242,15 @@ static int iomap_write_delalloc_release(struct inode *inode, error = data_end; goto out_unlock; } - WARN_ON_ONCE(data_end <= start_byte); + + /* + * If we race with post-direct I/O invalidation of the page cache, + * there might be no data left at start_byte. + */ + if (data_end == start_byte) + continue; + + WARN_ON_ONCE(data_end < start_byte); WARN_ON_ONCE(data_end > scan_end_byte); error = iomap_write_delalloc_scan(inode, &punch_start_byte, |