Jens Axboe 561e4f9451 io_uring/kbuf: hold io_buffer_list reference over mmap ... If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the io_uring lock. Rely on the fact that we can lookup the buffer list under RCU now and grab a reference to it, preventing it from being unregistered until we're done with it. The lookup returns the io_buffer_list directly with it referenced. Cc: stable@vger.kernel.org # v6.4+ Fixes: 5cf4f52e6d ("io_uring: free io_buffer_list entries via RCU") Signed-off-by: Jens Axboe <axboe@kernel.dk>		2024-04-02 19:03:27 -06:00
..
advise.c
advise.h
alloc_cache.h
cancel.c	io_uring/cancel: don't default to setting req->work.cancel_seq	2024-02-08 13:27:06 -07:00
cancel.h	io_uring/cancel: don't default to setting req->work.cancel_seq	2024-02-08 13:27:06 -07:00
epoll.c
epoll.h
fdinfo.c	io_uring: Fix sqpoll utilization check racing with dying sqpoll	2024-03-09 07:27:09 -07:00
fdinfo.h
filetable.c
filetable.h	io_uring: expand main struct io_kiocb flags to 64-bits	2024-02-08 13:27:03 -07:00
fs.c
fs.h
futex.c	io_uring/futex: always remove futex entry for cancel all	2024-03-15 15:37:15 -06:00
futex.h
io-wq.c
io-wq.h
io_uring.c	io_uring/kbuf: hold io_buffer_list reference over mmap	2024-04-02 19:03:27 -06:00
io_uring.h	io_uring/napi: ensure napi polling is aborted when work is available	2024-02-14 13:01:25 -07:00
kbuf.c	io_uring/kbuf: hold io_buffer_list reference over mmap	2024-04-02 19:03:27 -06:00
kbuf.h	io_uring/kbuf: hold io_buffer_list reference over mmap	2024-04-02 19:03:27 -06:00
Makefile	io-uring: add napi busy poll support	2024-02-09 11:54:19 -07:00
msg_ring.c
msg_ring.h
napi.c	io_uring/napi: enable even with a timeout of 0	2024-02-15 15:37:28 -07:00
napi.h	io_uring: add register/unregister napi function	2024-02-09 11:54:32 -07:00
net.c	io_uring/net: ensure async prep handlers always initialize ->done_io	2024-03-16 10:33:19 -06:00
net.h
nop.c
nop.h
notif.c
notif.h
opdef.c	io_uring: add support for ftruncate	2024-02-09 09:04:39 -07:00
opdef.h
openclose.c	io_uring: enable audit and restrict cred override for IORING_OP_FIXED_FD_INSTALL	2024-01-23 15:25:14 -07:00
openclose.h
poll.c	io_uring: fix poll_remove stalled req completion	2024-03-15 09:36:56 -06:00
poll.h	io_uring/rw: ensure poll based multishot read retries appropriately	2024-01-28 20:37:11 -07:00
refs.h
register.c	io_uring: add register/unregister napi function	2024-02-09 11:54:32 -07:00
register.h
rsrc.c
rsrc.h	io_uring: Don't include af_unix.h.	2024-02-12 19:02:11 -07:00
rw.c	io_uring/rw: don't allow multishot reads without NOWAIT support	2024-04-01 11:41:50 -06:00
rw.h
slist.h
splice.c
splice.h
sqpoll.c	io_uring/sqpoll: early exit thread if task_context wasn't allocated	2024-03-18 20:22:42 -06:00
sqpoll.h	io_uring/sqpoll: statistics of the true utilization of sq threads	2024-03-01 06:28:19 -07:00
statx.c
statx.h
sync.c
sync.h
tctx.c
tctx.h
timeout.c
timeout.h
truncate.c	io_uring: add support for ftruncate	2024-02-09 09:04:39 -07:00
truncate.h	io_uring: add support for ftruncate	2024-02-09 09:04:39 -07:00
uring_cmd.c	io_uring: Don't include af_unix.h.	2024-02-12 19:02:11 -07:00
uring_cmd.h
waitid.c	io_uring/waitid: always remove waitid entry for cancel all	2024-03-15 15:42:49 -06:00
waitid.h
xattr.c	io_uring: use file_mnt_idmap helper	2024-02-06 19:55:14 -07:00
xattr.h