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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/xfs/xfs_aops.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/xfs/xfs_aops.c')
-rw-r--r--fs/xfs/xfs_aops.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 379c089fb051..295aaffea78e 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -1645,7 +1645,7 @@ out_end_io:
* case the completion can be called in interrupt context, whereas if we have an
* ioend we will always be called in task context (i.e. from a workqueue).
*/
-STATIC void
+STATIC int
xfs_end_io_direct_write(
struct kiocb *iocb,
loff_t offset,
@@ -1655,15 +1655,19 @@ xfs_end_io_direct_write(
struct inode *inode = file_inode(iocb->ki_filp);
struct xfs_ioend *ioend = private;
+ if (size <= 0)
+ return 0;
+
trace_xfs_gbmap_direct_endio(XFS_I(inode), offset, size,
ioend ? ioend->io_type : 0, NULL);
if (!ioend) {
ASSERT(offset + size <= i_size_read(inode));
- return;
+ return 0;
}
__xfs_end_io_direct_write(inode, ioend, offset, size);
+ return 0;
}
static inline ssize_t
@@ -1672,10 +1676,7 @@ xfs_vm_do_dio(
struct kiocb *iocb,
struct iov_iter *iter,
loff_t offset,
- void (*endio)(struct kiocb *iocb,
- loff_t offset,
- ssize_t size,
- void *private),
+ dio_iodone_t endio,
int flags)
{
struct block_device *bdev;