Currently, the connection's fuse_ring is created lazily on the first
FUSE_IO_URING_CMD_REGISTER command. A server registers entries from one
thread per queue (one per CPU) and those threads issue their first
REGISTER command concurrently. They then race to create the single
per-connection fuse_ring, which required open-coded handling in
fuse_uring_create() to detect and protect against concurrent creations.
Decouple fuse_ring creation from ent registration and move it to
FUSE_INIT reply processing after a server has negotiated and set
FUSE_OVER_IO_URING. The ring is published before the connection is
marked initialized. fuse_uring_register() no longer creates the ring and
it instead uses the ring set up at init time.
Reviewed-by: Bernd Schubert <[email protected]>
Signed-off-by: Joanne Koong <[email protected]>
Signed-off-by: Miklos Szeredi <[email protected]>
Move a couple of function declarations from fuse_i.h to dev.h and
fuse_dev_i.h.
Add fuse_conn_get_id() helper that retrieves the connection ID (s_dev) from
fuse_conn.
With the exception of cuse.c, virtio_fs.c and trace.c source files now
either include fuse_i.h or fuse_dev_i/dev_uring_i.h but not both.
Signed-off-by: Miklos Szeredi <[email protected]>
Set minor, max_write and max_pages in the fuse_chan. These match the same
fields in fuse_conn but are needed in both layers.
[Dongyang Jin: Pointers should use NULL instead of explicit '0']
Signed-off-by: Miklos Szeredi <[email protected]>
Create a new source file: req.c and add the request sending entry
functions:
__fuse_simple_request()
fuse_simple_background()
fuse_simple_notify_reply()
Introduce transport layer sending functions that are called by the
respective fs layer function:
fuse_chan_send()
fuse_chan_send_bg()
fuse_chan_send_notify_reply()
Move calculation of request header fields uid, gid and pid from
fuse_get_req() and fuse_force_creads() to a new helper: fuse_fill_creds().
These fileds are now passed to the transport layer via struct fuse_args.
Signed-off-by: Miklos Szeredi <[email protected]>
- rename fuse_abort_conn() to fuse_chan_abort(), pass fuse_chan pointer
instead of fuse_conn
- pass an abort_with_err argument that tells fuse_dev_(read|write) to
return with ECONNABORTED instead of ENODEV
- move fc->aborted to fch->abort_with_err
- rename fuse_wait_aborted() to fuse_chan_wait_aborted()
Signed-off-by: Miklos Szeredi <[email protected]>
Add helpers (get and set functions mainly) that cleanly separate the
layers.
Remove #include "fuse_dev_i.h" from:
- inode.c
- file.c
- control.c
Remove #include "dev_uring_i.h" from inode.c.
[Li Wang: drop redundant initializer in process_init_limits()]
Signed-off-by: Miklos Szeredi <[email protected]>
Move the 'fiq' member from fuse_conn to fuse_chan.
Move iqueue related structure definitions and function declarations from
"fuse_i.h" to "fuse_dev_i.h".
Add a fuse_dev_chan_new() helper, that returns a fuse_chan initialized with
the fuse_dev_fiq_ops.
Add a fuse_chan_release() function, that calls fiq->ops->release().
Signed-off-by: Miklos Szeredi <[email protected]>
The goal is to separate transport layer stuff out from struct fuse_conn,
leaving just the filesystem related members.
Add a new object referenced from fuse_conn. This patch just implements the
allocation and freeing of this object.
Following patches will move transport related members from fuse_conn to
fuse_chan.
Signed-off-by: Miklos Szeredi <[email protected]>
This marks the first step in cleanly separating the transport layer from
the filesystem layer.
Add "dev.h", which will contain the interface definition for the transport
layer.
Signed-off-by: Miklos Szeredi <[email protected]>
Joanne Koong