linux-next.git/fs/fuse/req.c, branch masterLinux kernel latest sourcehttp://mirrors.hust.edu.cn/git/linux-next.git/atom?h=master2026-09-02T07:36:08+00:00fuse: don't fill in.h.pid in case args->nocreds is set2026-09-02T07:36:08+00:00Miklos Szeredimszeredi@redhat.com2026-08-25T15:05:09+00:00urn:sha1:1642e6b6a6ae0dcf61280e1c3110eba62582d4d2
Commit 794e811d1443 ("fuse: split out filesystem part of request sending")
alters the pid sent on force && nocreds requests.
Previously these allocated a zeroed request and skipped fuse_force_creds(),
so they went out with in.h.pid == 0.
In fuse_fill_creds(), args->pid is now set before the nocreds early return,
and fuse_args_to_req() copies it unconditionally - so writeback, release,
and DESTROY requests now report the triggering (often kernel-worker) pid
instead of 0.
Move the nocreds check above setting args->pid. Also remove the
WARN_ON(!args->nocreds) from the !args->force branch, since it's obviously
not going to be triggered.
Reported-by: David CARLIER <devnexen@gmail.com>
Closes: https://lore.kernel.org/all/CA+XhMqye_NBihcadRTU=w4xAfrdY9rsMB3oHF5+bwHukkjHMoQ@mail.gmail.com/
Fixes: 794e811d1443 ("fuse: split out filesystem part of request sending")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
fuse: split out filesystem part of request sending2026-06-15T12:06:17+00:00Miklos Szeredimszeredi@redhat.com2026-03-30T10:58:19+00:00urn:sha1:794e811d144390d61eab407fb2e9ae37aefe50e7
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 <mszeredi@redhat.com>