Commit 6bfc4919 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: issue cache flush on direct IO 



Under direct IO path with O_(D)SYNC, it needs to set proper APPEND or UPDATE
flags, so taht f2fs_sync_file can make its data safe.

Acked-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 608514de

fs/f2fs/data.c

+9 −2
Original line number Diff line number Diff line
@@ -673,6 +673,9 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, 
					err = reserve_new_block(&dn);

			} else {

				err = __allocate_data_block(&dn);

				if (!err)

					set_inode_flag(F2FS_I(inode),

							FI_APPEND_WRITE);

			}

			if (err)

				goto sync_out;
@@ -1685,8 +1688,12 @@ static ssize_t f2fs_direct_IO(struct kiocb *iocb, struct iov_iter *iter, 
	trace_f2fs_direct_IO_enter(inode, offset, count, iov_iter_rw(iter));



	err = blockdev_direct_IO(iocb, inode, iter, offset, get_data_block_dio);

	if (err < 0 && iov_iter_rw(iter) == WRITE)

	if (iov_iter_rw(iter) == WRITE) {

		if (err > 0)

			set_inode_flag(F2FS_I(inode), FI_UPDATE_WRITE);

		else if (err < 0)

			f2fs_write_failed(mapping, offset + count);

	}



	trace_f2fs_direct_IO_exit(inode, offset, count, iov_iter_rw(iter), err);