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| author | Eric Wong <normalperson@yhbt.net> | 2013-02-06 22:29:01 +0000 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2013-02-07 14:25:44 +0100 |
| commit | 634734b63ac39e137a1c623ba74f3e062b6577db (patch) | |
| tree | 65e2414fb7d31005d473719f7158f29bc9ca48d0 /fs/fuse/fuse_i.h | |
| parent | 7e98d53086d18c877cb44e9065219335184024de (diff) | |
| download | lwn-634734b63ac39e137a1c623ba74f3e062b6577db.tar.gz lwn-634734b63ac39e137a1c623ba74f3e062b6577db.zip | |
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 'fs/fuse/fuse_i.h')
| -rw-r--r-- | fs/fuse/fuse_i.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index fc55dd33c1e2..6aeba864f070 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -514,9 +514,12 @@ struct fuse_conn { /** Use enhanced/automatic page cache invalidation. */ unsigned auto_inval_data:1; - /** Does the filesystem support readdir-plus? */ + /** Does the filesystem support readdirplus? */ unsigned do_readdirplus:1; + /** Does the filesystem want adaptive readdirplus? */ + unsigned readdirplus_auto:1; + /** The number of requests waiting for completion */ atomic_t num_waiting; |