From 60263d5889e6dc5987dc51b801be4955ff2e4aa7 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Thu, 23 Jul 2020 22:45:59 -0700 Subject: iomap: fall back to buffered writes for invalidation failures Failing to invalid the page cache means data in incoherent, which is a very bad state for the system. Always fall back to buffered I/O through the page cache if we can't invalidate mappings. Signed-off-by: Christoph Hellwig Acked-by: Dave Chinner Reviewed-by: Goldwyn Rodrigues Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong Acked-by: Bob Peterson Acked-by: Damien Le Moal Reviewed-by: Theodore Ts'o # for ext4 Reviewed-by: Andreas Gruenbacher # for gfs2 Reviewed-by: Ritesh Harjani --- fs/ext4/file.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/ext4') diff --git a/fs/ext4/file.c b/fs/ext4/file.c index 2a01e31a032c..129cc1dd6b79 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -544,6 +544,8 @@ static ssize_t ext4_dio_write_iter(struct kiocb *iocb, struct iov_iter *from) iomap_ops = &ext4_iomap_overwrite_ops; ret = iomap_dio_rw(iocb, from, iomap_ops, &ext4_dio_write_ops, is_sync_kiocb(iocb) || unaligned_io || extend); + if (ret == -ENOTBLK) + ret = 0; if (extend) ret = ext4_handle_inode_extension(inode, offset, ret, count); -- cgit v1.2.3