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authorChristoph Hellwig <hch@lst.de>2016-02-08 06:40:51 +0300
committerDave Chinner <david@fromorbit.com>2016-02-08 06:40:51 +0300
commit187372a3b9faff68ed61c291d0135e6739e0dbdf (patch)
tree7eeed8ee2944dbdcc60ec49cf08f1b1604400b3e /fs/direct-io.c
parent36f90b0a2ddd60823fe193a85e60ff1906c2a9b3 (diff)
downloadlinux-187372a3b9faff68ed61c291d0135e6739e0dbdf.tar.xz
direct-io: always call ->end_io if non-NULL
This way we can pass back errors to the file system, and allow for cleanup required for all direct I/O invocations. Also allow the ->end_io handlers to return errors on their own, so that I/O completion errors can be passed on to the callers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/direct-io.c')
-rw-r--r--fs/direct-io.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 1b2f7ffc8b84..9c6f885cc518 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -253,8 +253,13 @@ static ssize_t dio_complete(struct dio *dio, loff_t offset, ssize_t ret,
if (ret == 0)
ret = transferred;
- if (dio->end_io && dio->result)
- dio->end_io(dio->iocb, offset, transferred, dio->private);
+ if (dio->end_io) {
+ int err;
+
+ err = dio->end_io(dio->iocb, offset, ret, dio->private);
+ if (err)
+ ret = err;
+ }
if (!(dio->flags & DIO_SKIP_DIO_COUNT))
inode_dio_end(dio->inode);