fuse: add flag to turn on async direct IO
authorMiklos Szeredi <mszeredi@suse.cz>
Wed, 1 May 2013 12:37:21 +0000 (14:37 +0200)
committerMiklos Szeredi <mszeredi@suse.cz>
Wed, 1 May 2013 12:37:21 +0000 (14:37 +0200)
commit60b9df7a54804a965850db00beec4d3a2c002536
treece3519c0708d6dd4113707c36a4ebdc6501542ef
parentefb9fa9e911b23c7ea5330215bda778a7c69dba8
fuse: add flag to turn on async direct IO

Without async DIO write requests to a single file were always serialized.
With async DIO that's no longer the case.

So don't turn on async DIO by default for fear of breaking backward
compatibility.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
fs/fuse/file.c
fs/fuse/fuse_i.h
fs/fuse/inode.c
include/uapi/linux/fuse.h