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: Chao Yu <[email protected]> --- fs/f2fs/gc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 57bea2182f30..cd147e7c71e8 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -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) -- 2.13.1.388.g69e6b9b4f4a9 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
