@@ -1512,7 +1512,7 @@ ssize_t blkdev_aio_write(struct kiocb *iocb, const struct iovec *iov,
blk_start_plug(&plug);
ret = __generic_file_aio_write(iocb, iov, nr_segs, &iocb->ki_pos);
- if (ret > 0 || ret == -EIOCBQUEUED) {
+ if (ret > 0) {
ssize_t err;
err = generic_write_sync(file, pos, ret);
@@ -1610,7 +1610,7 @@ static ssize_t btrfs_file_aio_write(struct kiocb *iocb,
*/
BTRFS_I(inode)->last_trans = root->fs_info->generation + 1;
BTRFS_I(inode)->last_sub_trans = root->log_transid;
- if (num_written > 0 || num_written == -EIOCBQUEUED) {
+ if (num_written > 0) {
err = generic_write_sync(file, pos, num_written);
if (err < 0 && num_written > 0)
num_written = err;
@@ -2530,7 +2530,7 @@ cifs_writev(struct kiocb *iocb, const struct iovec *iov,
mutex_unlock(&inode->i_mutex);
}
- if (rc > 0 || rc == -EIOCBQUEUED) {
+ if (rc > 0) {
ssize_t err;
err = generic_write_sync(file, pos, rc);
@@ -266,8 +266,18 @@ static ssize_t dio_complete(struct dio *dio, loff_t offset, ssize_t ret,
dio->end_io(dio->iocb, offset, transferred, dio->private);
inode_dio_done(dio->inode);
- if (is_async)
+ if (is_async) {
+ if (dio->rw & WRITE) {
+ int err;
+
+ err = generic_write_sync(dio->iocb->ki_filp, offset,
+ transferred);
+ if (err < 0 && ret > 0)
+ ret = err;
+ }
+
aio_complete(dio->iocb, ret, 0);
+ }
kmem_cache_free(dio_cache, dio);
return ret;
@@ -1161,6 +1171,15 @@ do_blockdev_direct_IO(int rw, struct kiocb *iocb, struct inode *inode,
dio->is_async = !is_sync_kiocb(iocb) && !((rw & WRITE) &&
(end > i_size_read(inode)));
+ /*
+ * For AIO O_(D)SYNC writes we need to defer completions to a workqueue
+ * so that we can call ->fsync.
+ */
+ if (dio->is_async && (rw & WRITE) &&
+ ((iocb->ki_filp->f_flags & O_DSYNC) ||
+ IS_SYNC(iocb->ki_filp->f_mapping->host)))
+ dio->defer_completion = true;
+
retval = 0;
dio->inode = inode;
@@ -149,7 +149,7 @@ ext4_file_dio_write(struct kiocb *iocb, const struct iovec *iov,
ret = __generic_file_aio_write(iocb, iov, nr_segs, &iocb->ki_pos);
mutex_unlock(&inode->i_mutex);
- if (ret > 0 || ret == -EIOCBQUEUED) {
+ if (ret > 0) {
ssize_t err;
err = generic_write_sync(file, pos, ret);
@@ -2550,7 +2550,7 @@ ssize_t generic_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
ret = __generic_file_aio_write(iocb, iov, nr_segs, &iocb->ki_pos);
mutex_unlock(&inode->i_mutex);
- if (ret > 0 || ret == -EIOCBQUEUED) {
+ if (ret > 0) {
ssize_t err;
err = generic_write_sync(file, pos, ret);