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authorMiklos Szeredi <mszeredi@suse.cz>2013-05-01 14:37:21 +0200
committerMiklos Szeredi <mszeredi@suse.cz>2013-05-01 14:37:21 +0200
commit60b9df7a54804a965850db00beec4d3a2c002536 (patch)
treece3519c0708d6dd4113707c36a4ebdc6501542ef /fs/fuse/fuse_i.h
parentefb9fa9e911b23c7ea5330215bda778a7c69dba8 (diff)
downloadlinux-60b9df7a54804a965850db00beec4d3a2c002536.tar.bz2
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>
Diffstat (limited to 'fs/fuse/fuse_i.h')
-rw-r--r--fs/fuse/fuse_i.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 53b830e3b38f..fde7249a3a96 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -541,6 +541,9 @@ struct fuse_conn {
/** Does the filesystem want adaptive readdirplus? */
unsigned readdirplus_auto:1;
+ /** Does the filesystem support asynchronous direct-IO submission? */
+ unsigned async_dio:1;
+
/** The number of requests waiting for completion */
atomic_t num_waiting;