diff options
| -rw-r--r-- | fs/splice.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/splice.c b/fs/splice.c index 7c2abd4504d7..b5fb2f3e3ac6 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -52,6 +52,15 @@ static int page_cache_pipe_buf_steal(struct pipe_inode_info *info, WARN_ON(!PageLocked(page)); WARN_ON(!PageUptodate(page)); + /* + * At least for ext2 with nobh option, we need to wait on writeback + * completing on this page, since we'll remove it from the pagecache. + * Otherwise truncate wont wait on the page, allowing the disk + * blocks to be reused by someone else before we actually wrote our + * data to them. fs corruption ensues. + */ + wait_on_page_writeback(page); + if (PagePrivate(page)) try_to_release_page(page, mapping_gfp_mask(mapping)); |