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| author | Chad Austin <chadaustin@fb.com> | 2019-01-08 03:53:17 +0300 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2019-02-13 15:15:15 +0300 |
| commit | d9a9ea94f748f47b1d75c6c5e33edcf74476c445 (patch) | |
| tree | 3da11cb177a59b58ea80d0985b29ceac5e8e5e7e /fs/fuse/fuse_i.h | |
| parent | 2f7b6f5bed01a3fd2abcc20d2c85b7c532eb95cd (diff) | |
| download | linux-d9a9ea94f748f47b1d75c6c5e33edcf74476c445.tar.xz | |
fuse: support clients that don't implement 'opendir'
Allow filesystems to return ENOSYS from opendir, preventing the kernel from
sending opendir and releasedir messages in the future. This avoids
userspace transitions when filesystems don't need to keep track of state
per directory handle.
A new capability flag, FUSE_NO_OPENDIR_SUPPORT, parallels
FUSE_NO_OPEN_SUPPORT, indicating the new semantics for returning ENOSYS
from opendir.
Signed-off-by: Chad Austin <chadaustin@fb.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse/fuse_i.h')
| -rw-r--r-- | fs/fuse/fuse_i.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h index 033e30af519f..0920c0c032a0 100644 --- a/fs/fuse/fuse_i.h +++ b/fs/fuse/fuse_i.h @@ -630,6 +630,9 @@ struct fuse_conn { /** Is open/release not implemented by fs? */ unsigned no_open:1; + /** Is opendir/releasedir not implemented by fs? */ + unsigned no_opendir:1; + /** Is fsync not implemented by fs? */ unsigned no_fsync:1; |