4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Chao Yu <[email protected]> [ Upstream commit e5e5732d8120654159254c16834bc8663d8be124 ] After revoking atomic write, related LBA can be reused by others, so we need to wait page writeback before reusing the LBA, in order to avoid interference between old atomic written in-flight IO and new IO. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> Signed-off-by: Sasha Levin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- fs/f2fs/segment.c | 2 ++ 1 file changed, 2 insertions(+) --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -207,6 +207,8 @@ static int __revoke_inmem_pages(struct i lock_page(page); + f2fs_wait_on_page_writeback(page, DATA, true); + if (recover) { struct dnode_of_data dn; struct node_info ni;
