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Christian Brauner d1d488d813 fs: add vfs_parse_fs_param_source() helper 
Add a simple helper that filesystems can use in their parameter parser
to parse the "source" parameter. A few places open-coded this function
and that already caused a bug in the cgroup v1 parser that we fixed.
Let's make it harder to get this wrong by introducing a helper which
performs all necessary checks.

Link: https://syzkaller.appspot.com/bug?id=6312526aba5beae046fdae8f00399f87aab48b12
Cc: Christoph Hellwig <hch@lst.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-14 09:19:06 -07:00
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9p
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adfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
affs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
afs
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autofs
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befs
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bfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
btrfs
Merge tag 'for-5.14-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
2021-07-13 12:02:07 -07:00
cachefiles
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ceph
ceph: take reference to req->r_parent at point of assignment
2021-06-29 00:15:52 +02:00
cifs
cifs: update internal version number
2021-07-09 13:03:36 -05:00
coda
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configfs
Merge tag 'configfs-5.13' of git://git.infradead.org/users/hch/configfs
2021-07-02 14:13:21 -07:00
cramfs
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crypto
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debugfs
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devpts
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dlm
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ecryptfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
efivarfs
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efs
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erofs
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exfat
Merge tag 'exfat-for-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
2021-07-06 11:06:04 -07:00
exportfs
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ext2
fs: remove noop_set_page_dirty()
2021-06-29 10:53:48 -07:00
ext4
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2021-07-09 09:57:27 -07:00
f2fs
f2fs: drop dirty node pages when cp is in error status
2021-07-06 22:05:06 -07:00
fat
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
freevxfs
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fscache
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fuse
Merge tag 'fuse-update-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
2021-07-06 11:17:41 -07:00
gfs2
Merge tag 'gfs2-v5.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
2021-06-29 20:23:08 -07:00
hfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
hfsplus
hfsplus: report create_date to kstat.btime
2021-07-01 11:06:06 -07:00
hostfs
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hpfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
hugetlbfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2021-06-28 20:39:26 -07:00
iomap
Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-07-03 11:30:04 -07:00
isofs
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jbd2
ext4: inline jbd2_journal_[un]register_shrinker()
2021-07-08 08:37:31 -04:00
jffs2
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jfs
Merge tag 'jfs-5.14' of git://github.com/kleikamp/linux-shaggy
2021-07-02 14:25:17 -07:00
kernfs
Merge tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2021-07-05 13:51:41 -07:00
lockd
lockd: Update the NLMv4 SHARE results encoder to use struct xdr_stream
2021-07-06 20:14:44 -04:00
minix
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
netfs
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nfs
Merge tag 'nfs-for-5.14-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
2021-07-09 09:43:57 -07:00
nfs_common
nfs_common: fix doc warning
2021-07-06 20:14:41 -04:00
nfsd
Merge tag 'block-5.14-2021-07-08' of git://git.kernel.dk/linux-block
2021-07-09 12:05:33 -07:00
nilfs2
Merge branch 'akpm' (patches from Andrew)
2021-07-02 12:08:10 -07:00
nls
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notify
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ntfs
Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-07-03 11:30:04 -07:00
ocfs2
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
2021-06-30 19:37:39 -07:00
omfs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
openpromfs
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orangefs
orangefs: fix orangefs df output.
2021-06-28 08:40:08 -04:00
overlayfs
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proc
Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-07-03 11:41:14 -07:00
pstore
Merge tag 'for-5.14/drivers-2021-06-29' of git://git.kernel.dk/linux-block
2021-06-30 12:21:16 -07:00
qnx4
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qnx6
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quota
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ramfs
fs: move ramfs_aops to libfs
2021-06-29 10:53:48 -07:00
reiserfs
Merge tag 'fs_for_v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2021-07-01 12:06:39 -07:00
romfs
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squashfs
squashfs: add option to panic on errors
2021-06-29 10:53:46 -07:00
sysfs
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sysv
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
tracefs
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ubifs
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udf
Merge tag 'fs_for_v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2021-07-01 12:06:39 -07:00
ufs
mm: require ->set_page_dirty to be explicitly wired up
2021-06-29 10:53:48 -07:00
unicode
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vboxsf
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verity
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xfs
Merge tag 'xfs-5.14-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
2021-07-02 14:30:27 -07:00
zonefs
mm: move page dirtying prototypes from mm.h
2021-06-29 10:53:48 -07:00
aio.c
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anon_inodes.c
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attr.c
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bad_inode.c
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binfmt_aout.c
binfmt: remove in-tree usage of MAP_EXECUTABLE
2021-06-29 10:53:50 -07:00
binfmt_elf_fdpic.c
Merge branch 'akpm' (patches from Andrew)
2021-06-29 17:29:11 -07:00
binfmt_elf.c
Merge branch 'akpm' (patches from Andrew)
2021-06-29 17:29:11 -07:00
binfmt_em86.c
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binfmt_flat.c
binfmt: remove in-tree usage of MAP_EXECUTABLE
2021-06-29 10:53:50 -07:00
binfmt_misc.c
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binfmt_script.c
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block_dev.c
Merge tag 'char-misc-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2021-07-05 13:42:16 -07:00
buffer.c
mm/writeback: move __set_page_dirty() to core mm
2021-06-29 10:53:48 -07:00
char_dev.c
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compat_binfmt_elf.c
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coredump.c
Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-07-03 11:41:14 -07:00
d_path.c
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dax.c
dax: fix ENOMEM handling in grab_mapping_entry()
2021-06-29 10:53:47 -07:00
dcache.c
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direct-io.c
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drop_caches.c
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eventfd.c
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eventpoll.c
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exec.c
Merge branch 'akpm' (patches from Andrew)
2021-07-02 12:08:10 -07:00
fcntl.c
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fhandle.c
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file_table.c
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file.c
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filesystems.c
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fs_context.c
fs: add vfs_parse_fs_param_source() helper
2021-07-14 09:19:06 -07:00
fs_parser.c
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fs_pin.c
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fs_struct.c
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fs_types.c
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fs-writeback.c
Merge tag 'fs_for_v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2021-07-01 12:06:39 -07:00
fsopen.c
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init.c
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inode.c
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internal.h
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io_uring.c
io_uring: remove dead non-zero 'poll' check
2021-07-09 08:20:28 -06:00
io-wq.c
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io-wq.h
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ioctl.c
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Kconfig
mm: hugetlb: introduce CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON
2021-06-30 20:47:26 -07:00
Kconfig.binfmt
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kernel_read_file.c
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libfs.c
fs: remove noop_set_page_dirty()
2021-06-29 10:53:48 -07:00
locks.c
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Makefile
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mbcache.c
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mount.h
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mpage.c
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namei.c
Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-07-03 11:41:14 -07:00
namespace.c
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no-block.c
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nsfs.c
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open.c
Merge branch 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2021-07-03 11:41:14 -07:00
pipe.c
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pnode.c
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pnode.h
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posix_acl.c
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proc_namespace.c
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read_write.c
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readdir.c
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remap_range.c
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select.c
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seq_file.c
seq_file: drop unused *_escape_mem_ascii()
2021-07-01 11:06:05 -07:00
signalfd.c
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splice.c
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stack.c
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stat.c
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statfs.c
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super.c
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sync.c
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timerfd.c
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userfaultfd.c
Merge branch 'akpm' (patches from Andrew)
2021-07-02 12:08:10 -07:00
utimes.c
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xattr.c
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