Commit 2bfd7eda authored by Andrew Morton's avatar Andrew Morton Committed by Christoph Hellwig

[PATCH] aio support for block devices

From: Janet Morgan <janetmor@us.ibm.com>

Here's a small patch that adds aio_read and aio_write methods to the
block device driver.
parent 98605ba9
......@@ -689,6 +689,15 @@ static ssize_t blkdev_file_write(struct file *file, const char *buf,
return generic_file_write_nolock(file, &local_iov, 1, ppos);
}
static ssize_t blkdev_file_aio_write(struct kiocb *iocb, const char *buf,
size_t count, loff_t pos)
{
struct iovec local_iov = { .iov_base = (void *)buf, .iov_len = count };
return generic_file_aio_write_nolock(iocb, &local_iov, 1, &iocb->ki_pos);
}
struct address_space_operations def_blk_aops = {
.readpage = blkdev_readpage,
.writepage = blkdev_writepage,
......@@ -705,6 +714,8 @@ struct file_operations def_blk_fops = {
.llseek = block_llseek,
.read = generic_file_read,
.write = blkdev_file_write,
.aio_read = generic_file_aio_read,
.aio_write = blkdev_file_aio_write,
.mmap = generic_file_mmap,
.fsync = block_fsync,
.ioctl = blkdev_ioctl,
......
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