tree 17d25ee77485af18da1a80cb7f1d8ec581c6abfc
parent 7c77f0b3f9208c339a4b40737bb2cb0f0319bb8d
author Miklos Szeredi <miklos@szeredi.hu> 1241703456 +0200
committer Jens Axboe <jens.axboe@oracle.com> 1242043990 +0200

splice: implement default splice_read method

If f_op->splice_read() is not implemented, fall back to a plain read.
Use vfs_readv() to read into previously allocated pages.

This will allow splice and functions using splice, such as the loop
device, to work on all filesystems.  This includes "direct_io" files
in fuse which bypass the page cache.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>