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authorEric Wong <normalperson@yhbt.net>2013-02-06 22:29:01 +0000
committerMiklos Szeredi <mszeredi@suse.cz>2013-02-07 14:25:44 +0100
commit634734b63ac39e137a1c623ba74f3e062b6577db (patch)
tree65e2414fb7d31005d473719f7158f29bc9ca48d0 /include/uapi/linux/fuse.h
parent7e98d53086d18c877cb44e9065219335184024de (diff)
fuse: allow control of adaptive readdirplus use
For some filesystems (e.g. GlusterFS), the cost of performing a normal readdir and readdirplus are identical. Since adaptively using readdirplus has no benefit for those systems, give users/filesystems the option to control adaptive readdirplus use. v2 of this patch incorporates Miklos's suggestion to simplify the code, as well as improving consistency of macro names and documentation. Signed-off-by: Eric Wong <normalperson@yhbt.net> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'include/uapi/linux/fuse.h')
-rw-r--r--include/uapi/linux/fuse.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index baee03e90438..4c43b4448792 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -218,6 +218,8 @@ struct fuse_file_lock {
* FUSE_FLOCK_LOCKS: remote locking for BSD style file locks
* FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories
* FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages
+ * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one)
+ * FUSE_READDIRPLUS_AUTO: adaptive readdirplus
*/
#define FUSE_ASYNC_READ (1 << 0)
#define FUSE_POSIX_LOCKS (1 << 1)
@@ -233,6 +235,7 @@ struct fuse_file_lock {
#define FUSE_HAS_IOCTL_DIR (1 << 11)
#define FUSE_AUTO_INVAL_DATA (1 << 12)
#define FUSE_DO_READDIRPLUS (1 << 13)
+#define FUSE_READDIRPLUS_AUTO (1 << 14)
/**
* CUSE INIT request/reply flags