qemu/hw/9pfs
Christian Schoenebeck a2f17bd40b 9pfs: make multidevs=remap default
1a6ed33cc5 introduced option multidevs=remap|forbid|warn and made
"warn" the default option.

As it turned out though, e.g. by several reports in conjunction with
following 9p client issue:

850925a813

Many people are just ignoring this warning, or even do not notice the
warning at all. Therefore make multidevs=remap the new default option to
prevent people to run into such kind of severe misbehaviours in the first
place.

From performance PoV the runtime overhead of multidevs=remap is
neglectable with few or even just only one device being shared with the
same 9p export, expected to be constant Theta(1). The inode numbers
emitted to guest also just loose one bit (since 6b6aa8285d) for the 1st
device being shared.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Message-Id: <09cc84e5561f66b6a8cf49b3532c6c78a6acc806.1734876877.git.qemu_oss@crudebyte.com>
2025-02-06 17:10:46 +01:00
..
9p-local.c 9pfs: make multidevs=remap default 2025-02-06 17:10:46 +01:00
9p-local.h 9pfs: local: open/opendir: don't follow symlinks 2017-02-28 11:21:15 +01:00
9p-posix-acl.c 9pfs: fix removing non-existent POSIX ACL xattr on macOS host 2022-05-01 14:07:03 +02:00
9p-synth.c include: Rename sysemu/ -> system/ 2024-12-20 17:44:56 +01:00
9p-synth.h 9pfs: Fix segfault in do_readdir_many caused by struct dirent overread 2022-02-17 16:57:58 +01:00
9p-util-darwin.c 9pfs: fix qemu_mknodat() to always return -1 on error on macOS host 2022-05-01 14:07:03 +02:00
9p-util-linux.c 9p: darwin: Implement compatibility for mknodat 2022-03-07 11:49:31 +01:00
9p-util.h 9pfs: fix regression regarding CVE-2023-2861 2024-12-10 10:24:52 +01:00
9p-xattr-user.c trivial typos: namesapce 2022-06-28 11:06:44 +02:00
9p-xattr.c 9pfs: add link to 9p developer docs 2021-07-05 13:03:16 +02:00
9p-xattr.h 9pfs: fix XattrOperations typedef 2018-01-08 11:18:22 +01:00
9p.c 9pfs: improve v9fs_walk() tracing 2025-02-06 17:10:45 +01:00
9p.h 9pfs: cleanup V9fsFidState 2024-11-28 18:54:00 +01:00
codir.c 9pfs: mark more coroutine_fns 2023-04-25 13:17:28 +02:00
cofile.c fsdev: Use ThrottleDirection instread of bool is_write 2023-08-29 10:49:24 +02:00
cofs.c coroutine: Clean up superfluous inclusion of qemu/coroutine.h 2023-01-19 10:18:28 +01:00
coth.c thread-pool: avoid passing the pool parameter every time 2023-04-25 13:17:28 +02:00
coth.h coroutine: Split qemu/coroutine-core.h off qemu/coroutine.h 2023-01-20 07:21:46 +01:00
coxattr.c coroutine: Clean up superfluous inclusion of qemu/coroutine.h 2023-01-19 10:18:28 +01:00
Kconfig hw/9pfs: Fix Kconfig dependency problem between 9pfs and Xen 2020-11-05 15:21:11 +01:00
meson.build 9p: remove 'proxy' filesystem backend driver 2024-10-03 19:33:25 +02:00
trace-events 9pfs: improve v9fs_walk() tracing 2025-02-06 17:10:45 +01:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
virtio-9p-device.c Accel & Exec patch queue 2024-12-21 11:07:00 -05:00
virtio-9p.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
xen-9p-backend.c hw/xen: Make XenDevOps structures const 2024-06-04 11:53:43 +02:00
xen-9pfs.h xen: Import other xen/io/*.h 2019-06-24 10:42:30 +01:00