Commit 73ac2f4e authored by Chao Yu's avatar Chao Yu Committed by Jaegeuk Kim
Browse files

f2fs: fix to avoid race in between aio and gc 



We won't wait DIO synchronously when doing AIO, so there will be potential
IO reorder in between AIO and GC, which will cause data corruption.

This patch adds inode_dio_wait to serialize aio and data GC to avoid this
issue.

Signed-off-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 01983c71

fs/f2fs/gc.c

+3 −0
Original line number Diff line number Diff line
@@ -875,6 +875,9 @@ static void gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum, 
					continue;

				}

				locked = true;



				/* wait for all inflight aio data */

				inode_dio_wait(inode);

			}



			start_bidx = start_bidx_of_node(nofs, inode)