redonkable/alistair23-linux
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alistair23-linux/fs
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Jens Axboe 87ce955b24 io_uring: add ->show_fdinfo() for the io_uring file descriptor 
It can be hard to know exactly what is registered with the ring.
Especially for credentials, it'd be handy to be able to see which
ones are registered, what personalities they have, and what the ID
of each of them is.

This adds support for showing information registered in the ring from
the fdinfo of the io_uring fd. Here's an example from a test case that
registers 4 files (two of them sparse), 4 buffers, and 2 personalities:

pos:	0
flags:	02000002
mnt_id:	14
UserFiles:	4
    0: file-no-1
    1: file-no-2
    2: <none>
    3: <none>
UserBufs:	4
    0: 0x563817c46000/128
    1: 0x563817c47000/256
    2: 0x563817c48000/512
    3: 0x563817c49000/1024
Personalities:
    1
	Uid:	0		0		0		0
	Gid:	0		0		0		0
	Groups:	0
	CapEff:	0000003fffffffff
    2
	Uid:	0		0		0		0
	Gid:	0		0		0		0
	Groups:	0
	CapEff:	0000003fffffffff

Suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-01-30 12:40:35 -07:00
..
9p 9p pull request for inclusion in 5.4 2019-09-27 15:10:34 -07:00
adfs fs/adfs: bigdir: Fix an error code in adfs_fplus_read() 2020-01-25 11:31:59 -05:00
affs affs: fix a memory leak in affs_remount 2019-11-18 14:26:43 +01:00
afs afs: Fix characters allowed into cell names 2020-01-26 08:54:04 -08:00
autofs Merge branch 'next.autofs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-12-05 17:11:48 -08:00
befs
bfs
btrfs fs-dedupe-last-block-tag 2020-01-28 15:18:23 -08:00
cachefiles
ceph ceph: hold extra reference to r_parent over life of request 2020-01-21 19:02:37 +01:00
cifs CIFS: Fix task struct use-after-free on reconnect 2020-01-26 19:24:17 -06:00
coda y2038: add inode timestamp clamping 2019-09-19 09:42:37 -07:00
configfs configfs: calculate the depth of parent item 2019-11-06 18:36:01 +01:00
cramfs cramfs: fix usage on non-MTD device 2019-11-23 21:44:49 -05:00
crypto fscrypt: improve format of no-key names 2020-01-22 14:50:03 -08:00
debugfs debugfs: Return -EPERM when locked down 2020-01-14 16:14:48 +01:00
devpts
dlm dlm: use SO_SNDTIMEO_NEW instead of SO_SNDTIMEO_OLD 2019-12-18 18:07:31 +01:00
ecryptfs crypto: skcipher - remove crypto_skcipher::keysize 2019-12-11 16:36:56 +08:00
efivarfs
efs
erofs erofs: clean up z_erofs_submit_queue() 2020-01-21 16:46:23 +08:00
exportfs race in exportfs_decode_fh() 2019-11-11 09:21:59 -05:00
ext2 \n 2019-11-30 11:16:07 -08:00
ext4 linux-kselftest-5.6-rc1-kunit 2020-01-29 15:25:34 -08:00
f2fs fsverity updates for 5.6 2020-01-28 15:31:03 -08:00
fat fat: use prandom_u32() for i_generation 2019-12-18 18:07:31 +01:00
freevxfs
fscache
fuse fuse: fix fuse_send_readpages() in the syncronous read case 2020-01-16 11:09:36 +01:00
gfs2 GFS2 changes for this merge window: 2019-12-05 13:20:11 -08:00
hfs hfs/hfsplus: use 64-bit inode timestamps 2019-12-18 18:07:32 +01:00
hfsplus hfs/hfsplus: use 64-bit inode timestamps 2019-12-18 18:07:32 +01:00
hostfs hostfs: pass 64-bit timestamps to/from user space 2019-12-18 18:07:32 +01:00
hpfs fs: compat_ioctl: move FITRIM emulation into file systems 2019-10-23 17:23:46 +02:00
hugetlbfs mm/hugetlbfs: fix for_each_hstate() loop in init_hugetlbfs_fs() 2020-01-03 10:39:08 -08:00
iomap iomap: stop using ioend after it's been freed in iomap_finish_ioend() 2019-12-05 07:41:16 -08:00
isofs y2038: add inode timestamp clamping 2019-09-19 09:42:37 -07:00
jbd2 This merge window saw the the following new featuers added to ext4: 2019-11-30 10:53:02 -08:00
jffs2 Revert "jffs2: Fix possible null-pointer dereferences in jffs2_add_frag_to_fragtree()" 2019-11-29 11:29:58 +01:00
jfs y2038: add inode timestamp clamping 2019-09-19 09:42:37 -07:00
kernfs fs/kernfs/dir.c: Clean code by removing always true condition 2020-01-14 16:14:47 +01:00
lockd NFSv4.1: Don't rebind to the same source port when reconnecting to the server 2019-11-03 21:28:45 -05:00
minix
nfs y2038: core, driver and file system changes 2020-01-29 14:55:47 -08:00
nfs_common
nfsd This is a relatively quiet cycle for nfsd, mainly various bugfixes. 2019-12-07 16:56:00 -08:00
nilfs2 fs: compat_ioctl: move FITRIM emulation into file systems 2019-10-23 17:23:46 +02:00
nls
notify fs: call fsnotify_sb_delete after evict_inodes 2019-12-18 00:03:01 -05:00
ntfs ntfs: remove (un)?likely() from IS_ERR() conditions 2019-09-26 10:10:44 -07:00
ocfs2 ocfs2: fix the crash due to call ocfs2_get_dlm_debug once less 2020-01-04 13:55:09 -08:00
omfs
openpromfs
orangefs orangefs: posix open permission checking... 2019-12-04 08:52:55 -05:00
overlayfs overlayfs fixes for 5.5-rc2 2019-12-14 11:13:54 -08:00
proc Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-01-29 11:20:24 -08:00
pstore pstore/ram: Regularize prz label allocation lifetime 2020-01-08 17:05:45 -08:00
qnx4
qnx6
quota fs: avoid softlockups in s_inodes iterators 2019-12-18 00:03:01 -05:00
ramfs vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API 2019-09-12 21:05:34 -04:00
reiserfs reiserfs: fix handling of -EOPNOTSUPP in reiserfs_for_each_xattr 2020-01-16 16:49:29 +01:00
romfs Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-09-19 10:06:57 -07:00
squashfs Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-09-19 10:06:57 -07:00
sysfs
sysv
tracefs tracing: Do not create tracefs files if tracefs lockdown is in effect 2019-10-12 20:49:07 -04:00
ubifs ubifs: allow both hash and disk name to be provided in no-key names 2020-01-22 14:49:56 -08:00
udf
ufs y2038: add inode timestamp clamping 2019-09-19 09:42:37 -07:00
unicode unicode: make array 'token' static const, makes object smaller 2019-09-17 11:48:24 -04:00
verity fs-verity: use u64_to_user_ptr() 2020-01-14 13:28:28 -08:00
xfs Merge branch 'core/kprobes' into perf/core, to pick up a completed branch 2019-12-25 10:43:08 +01:00
aio.c y2038: syscall implementation cleanups 2019-12-01 14:00:59 -08:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c
binfmt_elf.c fs/binfmt_elf.c: extract elf_read() function 2019-12-04 19:44:13 -08:00
binfmt_elf_fdpic.c y2038: elfcore: Use __kernel_old_timeval for process times 2019-11-15 14:38:29 +01:00
binfmt_em86.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
block_dev.c block: don't send uevent for empty disk when not invalidating 2019-12-02 18:49:30 -07:00
buffer.c smp: Remove allocation mask from on_each_cpu_cond.*() 2020-01-24 20:40:09 +01:00
char_dev.c chardev: Avoid potential use-after-free in 'chrdev_open()' 2020-01-06 20:10:26 +01:00
compat.c
compat_binfmt_elf.c y2038: elfcore: Use __kernel_old_timeval for process times 2019-11-15 14:38:29 +01:00
coredump.c
d_path.c
dax.c New code for 5.5: 2019-11-30 10:44:49 -08:00
dcache.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-12-08 11:08:28 -08:00
dcookies.c
direct-io.c fs/direct-io.c: include fs/internal.h for missing prototype 2020-01-04 13:55:09 -08:00
drop_caches.c fs: avoid softlockups in s_inodes iterators 2019-12-18 00:03:01 -05:00
eventfd.c
eventpoll.c eventpoll: support non-blocking do_epoll_ctl() calls 2020-01-29 15:45:47 -07:00
exec.c Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-12-03 12:20:25 -08:00
fcntl.c Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-12-08 11:08:28 -08:00
fhandle.c
file.c threads-v5.6 2020-01-29 19:38:34 -08:00
file_table.c
filesystems.c
fs-writeback.c cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead 2019-11-08 13:37:24 -07:00
fs_context.c
fs_parser.c vfs: Make fs_parse() handle fs_param_is_fd-type params better 2019-09-12 21:06:14 -04:00
fs_pin.c
fs_struct.c
fs_types.c
fsopen.c
inode.c fscrypt: don't allow v1 policies with casefolding 2020-01-22 14:47:15 -08:00
internal.h for-5.6/io_uring-vfs-2020-01-29 2020-01-29 18:53:37 -08:00
io-wq.c io_uring: fix linked command file table usage 2020-01-29 13:46:44 -07:00
io-wq.h io_uring: fix linked command file table usage 2020-01-29 13:46:44 -07:00
io_uring.c io_uring: add ->show_fdinfo() for the io_uring file descriptor 2020-01-30 12:40:35 -07:00
ioctl.c compat_ioctl: simplify the implementation 2020-01-03 09:42:52 +01:00
Kconfig io-wq: small threadpool implementation for io_uring 2019-10-29 12:43:00 -06:00
Kconfig.binfmt
libfs.c fs/libfs.c: fix kernel-doc warning 2019-10-14 15:04:01 -07:00
locks.c locks: print unsigned ino in /proc/locks 2019-12-29 09:00:58 -05:00
Makefile compat_ioctl: move sys_compat_ioctl() to ioctl.c 2020-01-03 09:42:52 +01:00
mbcache.c
mount.h
mpage.c fs: move guard_bio_eod() after bio_set_op_attrs 2020-01-09 08:16:12 -07:00
namei.c Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-01-29 11:20:24 -08:00
namespace.c fs/namespace.c: make to_mnt_ns() static 2020-01-04 13:55:09 -08:00
no-block.c
nsfs.c Merge branch 'work.openat2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2020-01-29 11:20:24 -08:00
open.c fs: make build_open_flags() available internally 2020-01-20 17:01:53 -07:00
pipe.c pipe: fix empty pipe check in pipe_write() 2019-12-22 09:47:47 -08:00
pnode.c
pnode.h
posix_acl.c fs/posix_acl.c: fix kernel-doc warnings 2020-01-04 13:55:09 -08:00
proc_namespace.c
read_write.c fs: allow deduplication of eof block into the end of the destination file 2020-01-23 18:20:48 +01:00
readdir.c readdir: make user_access_begin() use the real access range 2020-01-23 10:15:28 -08:00
select.c y2038: syscalls: change remaining timeval to __kernel_old_timeval 2019-11-15 14:38:29 +01:00
seq_file.c
signalfd.c
splice.c pipe: remove 'waiting_writers' merging logic 2019-12-07 13:21:01 -08:00
stack.c sched/rt, fs: Use CONFIG_PREEMPTION 2019-12-08 14:37:36 +01:00
stat.c fs: make two stat prep helpers available 2020-01-20 17:03:54 -07:00
statfs.c vfs: Fix EOVERFLOW testing in put_compat_statfs64 2019-10-03 14:21:35 -07:00
super.c fs: call fsnotify_sb_delete after evict_inodes 2019-12-18 00:03:01 -05:00
sync.c
timerfd.c timerfd: Make timerfd_settime() time namespace aware 2020-01-14 12:20:53 +01:00
userfaultfd.c Merge branch 'akpm' (patches from Andrew) 2019-12-01 20:36:41 -08:00
utimes.c y2038: syscalls: change remaining timeval to __kernel_old_timeval 2019-11-15 14:38:29 +01:00
xattr.c