[Cluster-devel] [PATCH 1/3] xfs: use ENOTBLK for direct I/O to buffered I/O fallback

[Christoph Hellwig]

This is what the classic fs/direct-io.c implementation and thuse other
file systems use.

Signed-off-by: Christoph Hellwig <h...@lst.de>
---
 fs/xfs/xfs_file.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 00db81eac80d6c..a6ef90457abf97 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -505,7 +505,7 @@ xfs_file_dio_aio_write(
                 */
                if (xfs_is_cow_inode(ip)) {
                        trace_xfs_reflink_bounce_dio_write(ip, iocb->ki_pos, 
count);
-                       return -EREMCHG;
+                       return -ENOTBLK;
                }
                iolock = XFS_IOLOCK_EXCL;
        } else {
@@ -714,7 +714,7 @@ xfs_file_write_iter(
                 * allow an operation to fall back to buffered mode.
                 */
                ret = xfs_file_dio_aio_write(iocb, from);
-               if (ret != -EREMCHG)
+               if (ret != -ENOTBLK)
                        return ret;
        }
 
-- 
2.27.0