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author | Miklos Szeredi <mszeredi@suse.cz> | 2013-05-01 08:37:21 -0400 |
---|---|---|
committer | Miklos Szeredi <mszeredi@suse.cz> | 2013-05-01 08:37:21 -0400 |
commit | 60b9df7a54804a965850db00beec4d3a2c002536 (patch) | |
tree | ce3519c0708d6dd4113707c36a4ebdc6501542ef /include/uapi | |
parent | efb9fa9e911b23c7ea5330215bda778a7c69dba8 (diff) |
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 'include/uapi')
-rw-r--r-- | include/uapi/linux/fuse.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h index 706d035fa748..60bb2f9f7b74 100644 --- a/include/uapi/linux/fuse.h +++ b/include/uapi/linux/fuse.h | |||
@@ -90,6 +90,9 @@ | |||
90 | * 7.21 | 90 | * 7.21 |
91 | * - add FUSE_READDIRPLUS | 91 | * - add FUSE_READDIRPLUS |
92 | * - send the requested events in POLL request | 92 | * - send the requested events in POLL request |
93 | * | ||
94 | * 7.22 | ||
95 | * - add FUSE_ASYNC_DIO | ||
93 | */ | 96 | */ |
94 | 97 | ||
95 | #ifndef _LINUX_FUSE_H | 98 | #ifndef _LINUX_FUSE_H |
@@ -125,7 +128,7 @@ | |||
125 | #define FUSE_KERNEL_VERSION 7 | 128 | #define FUSE_KERNEL_VERSION 7 |
126 | 129 | ||
127 | /** Minor version number of this interface */ | 130 | /** Minor version number of this interface */ |
128 | #define FUSE_KERNEL_MINOR_VERSION 21 | 131 | #define FUSE_KERNEL_MINOR_VERSION 22 |
129 | 132 | ||
130 | /** The node ID of the root inode */ | 133 | /** The node ID of the root inode */ |
131 | #define FUSE_ROOT_ID 1 | 134 | #define FUSE_ROOT_ID 1 |
@@ -215,6 +218,7 @@ struct fuse_file_lock { | |||
215 | * FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages | 218 | * FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages |
216 | * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one) | 219 | * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one) |
217 | * FUSE_READDIRPLUS_AUTO: adaptive readdirplus | 220 | * FUSE_READDIRPLUS_AUTO: adaptive readdirplus |
221 | * FUSE_ASYNC_DIO: asynchronous direct I/O submission | ||
218 | */ | 222 | */ |
219 | #define FUSE_ASYNC_READ (1 << 0) | 223 | #define FUSE_ASYNC_READ (1 << 0) |
220 | #define FUSE_POSIX_LOCKS (1 << 1) | 224 | #define FUSE_POSIX_LOCKS (1 << 1) |
@@ -231,6 +235,7 @@ struct fuse_file_lock { | |||
231 | #define FUSE_AUTO_INVAL_DATA (1 << 12) | 235 | #define FUSE_AUTO_INVAL_DATA (1 << 12) |
232 | #define FUSE_DO_READDIRPLUS (1 << 13) | 236 | #define FUSE_DO_READDIRPLUS (1 << 13) |
233 | #define FUSE_READDIRPLUS_AUTO (1 << 14) | 237 | #define FUSE_READDIRPLUS_AUTO (1 << 14) |
238 | #define FUSE_ASYNC_DIO (1 << 15) | ||
234 | 239 | ||
235 | /** | 240 | /** |
236 | * CUSE INIT request/reply flags | 241 | * CUSE INIT request/reply flags |