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Suren Baghdasaryan 9fbdc4b53f UPSTREAM: mm: refactor vm_area_struct::anon_vma_name usage code 
Avoid mixing strings and their anon_vma_name referenced pointers by
using struct anon_vma_name whenever possible.  This simplifies the code
and allows easier sharing of anon_vma_name structures when they
represent the same name.

[surenb@google.com: fix comment]

Link: https://lkml.kernel.org/r/20220223153613.835563-1-surenb@google.com
Link: https://lkml.kernel.org/r/20220224231834.1481408-1-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: Matthew Wilcox <willy@infradead.org>
Suggested-by: Michal Hocko <mhocko@suse.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Colin Cross <ccross@google.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Alexey Gladkov <legion@kernel.org>
Cc: Sasha Levin <sashal@kernel.org>
Cc: Chris Hyser <chris.hyser@oracle.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Xiaofeng Cao <caoxiaofeng@yulong.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

(cherry picked from commit 5c26f6ac94)

Bug: 218352794
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I4a6b5602ce7151d1a4b88fac489f86d68089bd4d
2022-03-25 16:28:27 +00:00
..
9p
Merge 5.10.93 into android13-5.10
2022-01-20 09:35:27 +01:00
adfs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-10-24 12:26:05 -07:00
affs
fs/affs: release old buffer head on error path
2021-03-04 11:38:37 +01:00
afs
Merge 5.10.70 into android13-5.10
2021-09-30 10:42:21 +02:00
autofs
autofs: harden ioctl table
2020-10-16 11:11:22 -07:00
befs
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
bfs
bfs: don't use WARNING: string when it's just info.
2021-01-06 14:56:52 +01:00
btrfs
Merge 5.10.104 into android13-5.10
2022-03-15 13:57:31 +01:00
cachefiles
fs/cachefiles: Remove wait_bit_key layout dependency
2021-03-30 14:32:07 +02:00
ceph
Merge 5.10.96 into android13-5.10
2022-02-02 09:32:52 +01:00
cifs
Merge 5.10.104 into android13-5.10
2022-03-15 13:57:31 +01:00
coda
…
configfs
Merge 5.10.103 into android13-5.10
2022-03-02 15:44:44 +01:00
cramfs
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
crypto
Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-5.10.y' into android13-5.10
2022-03-24 00:51:47 +00:00
debugfs
debugfs: lockdown: Allow reading debugfs files that are not world readable
2022-01-27 10:54:02 +01:00
devpts
fsnotify: fix fsnotify hooks in pseudo filesystems
2022-02-01 17:25:39 +01:00
dlm
fs: dlm: filter user dlm messages for kernel locks
2022-01-27 10:54:10 +01:00
ecryptfs
Merge 5.10.40 into android12-5.10
2021-05-27 08:36:46 +02:00
efivarfs
efivarfs: revert "fix memory leak in efivarfs_create()"
2020-11-25 16:55:02 +01:00
efs
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
erofs
erofs: fix deadlock when shrink erofs slab
2021-12-01 10:21:15 -08:00
exfat
exfat: fix i_blocks for files truncated over 4 GiB
2022-03-08 19:09:30 +01:00
exportfs
…
ext2
Merge 5.10.72 into android13-5.10
2021-10-09 15:04:37 +02:00
ext4
Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-5.10.y' into android13-5.10
2022-03-24 00:51:47 +00:00
f2fs
Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-5.10.y' into android13-5.10
2022-03-24 00:51:47 +00:00
fat
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
freevxfs
…
fscache
fscache: Fix cookie key hashing
2021-09-18 13:40:15 +02:00
fuse
Merge 5.10.106 into android13-5.10
2022-03-18 12:17:14 +01:00
gfs2
Merge 5.10.84 into android13-5.10
2021-12-08 09:44:28 +01:00
hfs
Merge 5.10.55 into android13-5.10
2021-07-31 08:50:03 +02:00
hfsplus
Merge 5.10.38 into android12-5.10
2021-05-20 15:35:25 +02:00
hostfs
hostfs: fix memory handling in follow_link()
2021-04-14 08:42:06 +02:00
hpfs
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
hugetlbfs
hugetlbfs: fix mount mode command line processing
2021-07-28 14:35:46 +02:00
incfs
ANDROID: incremental-fs: limit mount stack depth
2022-03-22 14:50:48 +00:00
iomap
iomap: support direct I/O with fscrypt using blk-crypto
2022-03-21 13:56:10 -07:00
isofs
isofs: Fix out of bound access for corrupted isofs image
2021-11-12 14:58:33 +01:00
jbd2
jbd2: export jbd2_journal_[grab|put]_journal_head
2022-02-01 17:25:41 +01:00
jffs2
Merge 5.10.94 into android13-5.10
2022-01-29 09:07:58 +01:00
jfs
Merge 5.10.80 into android13-5.10
2021-11-19 07:47:18 +01:00
kernfs
kernfs: wire up ->splice_read and ->splice_write
2021-01-27 11:55:29 +01:00
lockd
lockd: lockd server-side shouldn't set fl_ops
2021-09-18 13:40:30 +02:00
minix
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
nfs
Merge 5.10.102 into android13-5.10
2022-02-23 12:26:12 +01:00
nfs_common
nfs_common: need lock during iterate through the list
2020-12-30 11:53:45 +01:00
nfsd
NFSD: Fix offset type in I/O trace points
2022-02-16 12:54:17 +01:00
nilfs2
nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group
2021-09-26 14:09:01 +02:00
nls
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
notify
Merge 5.10.97 into android13-5.10
2022-02-05 13:23:26 +01:00
ntfs
ntfs: fix validity check for file name attribute
2021-07-14 16:55:38 +02:00
ocfs2
Merge 5.10.96 into android13-5.10
2022-02-02 09:32:52 +01:00
omfs
fs: omfs: use kmemdup() rather than kmalloc+memcpy
2020-09-22 23:39:45 -04:00
openpromfs
…
orangefs
Merge 5.10.93 into android13-5.10
2022-01-20 09:35:27 +01:00
overlayfs
Merge 5.10.88 into android13-5.10
2021-12-29 13:18:16 +01:00
proc
UPSTREAM: mm: refactor vm_area_struct::anon_vma_name usage code
2022-03-25 16:28:27 +00:00
pstore
Merge branch 'android12-5.10' into 'android13-5.10'
2021-07-21 14:24:16 +02:00
qnx4
qnx4: work around gcc false positive warning bug
2021-09-30 10:11:08 +02:00
qnx6
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
quota
quota: make dquot_quota_sync return errors from ->sync_fs
2022-02-23 12:00:59 +01:00
ramfs
ramfs: fix nommu mmap with gaps in the page cache
2020-10-16 11:11:22 -07:00
reiserfs
Merge 5.10.58 into android13-5.10
2021-08-12 15:16:30 +02:00
romfs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-10-24 12:26:05 -07:00
squashfs
Merge 5.10.38 into android12-5.10
2021-05-20 15:35:25 +02:00
sysfs
sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output
2020-10-02 12:02:30 +02:00
sysv
[PATCH] reduce boilerplate in fsid handling
2020-09-18 16:45:50 -04:00
tracefs
Merge 5.10.103 into android13-5.10
2022-03-02 15:44:44 +01:00
ubifs
Merge 5.10.94 into android13-5.10
2022-01-29 09:07:58 +01:00
udf
udf: Fix NULL ptr deref when converting from inline format
2022-02-01 17:25:39 +01:00
ufs
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-10-24 12:26:05 -07:00
unicode
ANDROID: sync generic casefolding code with patches going upstream
2020-09-27 21:56:06 +00:00
vboxsf
vboxfs: fix broken legacy mount signature checking
2021-10-17 10:43:33 +02:00
verity
fs-verity: fix signed integer overflow with i_size near S64_MAX
2021-11-15 18:18:31 -08:00
xfs
Merge 5.10.91 into android13-5.10
2022-01-11 15:45:50 +01:00
zonefs
zonefs: add MODULE_ALIAS_FS
2021-12-22 09:30:57 +01:00
aio.c
aio: fix use-after-free due to missing POLLFREE handling
2021-12-14 11:32:40 +01:00
anon_inodes.c
UPSTREAM: fs: anon_inodes: rephrase to appropriate kernel-doc
2021-03-03 16:18:33 +00:00
attr.c
Revert "ANDROID: vfs: Add setattr2 for filesystems with per mount permissions"
2020-05-29 08:49:31 +02:00
bad_inode.c
fs: move the fiemap definitions out of fs.h
2020-06-03 23:16:55 -04:00
binfmt_aout.c
…
binfmt_elf_fdpic.c
binfmt_elf, binfmt_elf_fdpic: use a VMA list snapshot
2020-10-16 11:11:21 -07:00
binfmt_elf.c
elf: don't use MAP_FIXED_NOREPLACE for elf interpreter mappings
2021-10-06 15:55:59 +02:00
binfmt_em86.c
Merge branch 'akpm' (patches from Andrew)
2020-06-04 19:18:29 -07:00
binfmt_flat.c
binfmt_flat: revert "binfmt_flat: don't offset the data start"
2020-08-24 08:49:13 +10:00
binfmt_misc.c
binfmt_misc: fix possible deadlock in bm_register_write
2021-03-17 17:06:35 +01:00
binfmt_script.c
Merge branch 'akpm' (patches from Andrew)
2020-06-04 19:18:29 -07:00
block_dev.c
Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-5.10.y' into android13-5.10
2021-10-13 09:50:36 -07:00
buffer.c
Revert "FROMLIST: fs/buffer.c: Revoke LRU when trying to drop buffers"
2021-03-24 17:40:49 +00:00
char_dev.c
…
compat_binfmt_elf.c
Merge tag 'core_core_updates_for_5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2020-06-05 13:45:21 -07:00
coredump.c
Merge 5.10.69 into android13-5.10
2021-09-30 10:33:42 +02:00
d_path.c
fs: fix NULL dereference due to data race in prepend_path()
2020-10-14 14:54:45 -07:00
dax.c
dax: fix ENOMEM handling in grab_mapping_entry()
2021-07-14 16:56:13 +02:00
dcache.c
vfs: Use sequence counter with associated spinlock
2020-07-29 16:14:27 +02:00
dcookies.c
…
direct-io.c
ANDROID: f2fs: fix fscrypt direct I/O support
2022-01-20 20:13:50 +00:00
drop_caches.c
…
eventfd.c
…
eventpoll.c
Merge 5.10.36 into android12-5.10
2021-05-13 14:22:11 +02:00
exec.c
Merge 5.10.63 into android13-5.10
2021-09-08 09:07:16 +02:00
fcntl.c
fcntl: fix potential deadlock for &fasync_struct.fa_lock
2021-09-15 09:50:27 +02:00
fhandle.c
…
file_table.c
task_work: cleanup notification modes
2020-10-17 15:05:30 -06:00
file.c
Merge 5.10.102 into android13-5.10
2022-02-23 12:26:12 +01:00
filesystems.c
…
fs_context.c
memcg: charge fs_context and legacy_fs_context
2022-02-08 18:30:36 +01:00
fs_parser.c
fs_parse: mark fs_param_bad_value() as static
2020-10-13 18:38:27 -07:00
fs_pin.c
…
fs_struct.c
vfs: Use sequence counter with associated spinlock
2020-07-29 16:14:27 +02:00
fs_types.c
…
fs-writeback.c
writeback: fix obtain a reference to a freeing memcg css
2021-07-14 16:56:31 +02:00
fsopen.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
init.c
init: add an init_dup helper
2020-08-04 21:02:38 -04:00
inode.c
fs: export an inode_update_time helper
2021-11-26 10:39:22 +01:00
internal.h
cgroup1: fix leaked context root causing sporadic NULL deref in LTP
2021-07-31 08:16:11 +02:00
io_uring.c
io_uring: return back safer resurrect
2022-03-19 13:44:46 +01:00
io-wq.c
io-wq: fix wakeup race when adding new work
2021-09-18 13:40:06 +02:00
io-wq.h
io_uring: always batch cancel in *cancel_files()
2021-02-13 13:54:56 +01:00
ioctl.c
fs: remove ksys_ioctl
2020-07-31 08:16:01 +02:00
Kconfig
Merge 5.10.17 into android12-5.10
2021-02-18 11:21:01 +01:00
Kconfig.binfmt
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
kernel_read_file.c
vfs: check fd has read access in kernel_read_file_from_fd()
2021-10-27 09:56:51 +02:00
libfs.c
Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-5.10.y' into android12-5.10
2021-03-01 19:06:56 -08:00
locks.c
Revert "nfsd4: a client's own opens needn't prevent delegations"
2021-03-20 10:43:44 +01:00
Makefile
Merge 1f70935f63 ("Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc") into android-mainline
2020-10-27 11:47:16 +01:00
mbcache.c
…
mount.h
…
mpage.c
Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-5.10.y' into android13-5.10
2021-10-13 09:50:36 -07:00
namei.c
Merge 5.10.96 into android13-5.10
2022-02-02 09:32:52 +01:00
namespace.c
fs: warn about impending deprecation of mandatory locks
2021-08-26 08:35:57 -04:00
no-block.c
…
nsfs.c
…
open.c
Merge branch 'android12-5.10' into 'android13-5.10'
2021-07-21 14:24:16 +02:00
OWNERS
ANDROID: Add OWNERS files referring to the respective android-mainline OWNERS
2021-04-03 14:11:30 +00:00
pipe.c
watch_queue: Fix lack of barrier/sync/lock between post and read
2022-03-16 14:16:02 +01:00
pnode.c
Revert "ANDROID: mnt: Add filesystem private data to mount points"
2020-08-08 13:04:28 +02:00
pnode.h
mount: fix mounting of detached mounts onto targets that reside on shared mounts
2021-08-30 17:57:50 -07:00
posix_acl.c
Merge ad57a1022f ("Merge tag 'exfat-for-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat") into android-mainline
2020-06-24 17:54:12 +02:00
proc_namespace.c
proc mountinfo: make splice available again
2020-12-30 11:54:02 +01:00
read_write.c
Revert "Revert "fs: remove the compat readv/writev syscalls""
2020-11-02 09:27:39 +01:00
readdir.c
readdir: make sure to verify directory entry for legacy interfaces too
2021-04-21 13:00:54 +02:00
remap_range.c
vfs: move the remap range helpers to remap_range.c
2020-10-15 09:48:49 -07:00
select.c
select: Fix indefinitely sleeping task in poll_schedule_timeout()
2022-01-29 10:26:11 +01:00
seq_file.c
seq_file: disallow extremely large seq buffer allocations
2021-07-20 16:05:59 +02:00
signalfd.c
signalfd: use wake_up_pollfree()
2021-12-14 11:32:40 +01:00
splice.c
Revert "Revert "fs: remove compat_sys_vmsplice""
2020-11-02 09:27:41 +01:00
stack.c
…
stat.c
fs: fix reporting supported extra file attributes for statx()
2021-05-11 14:47:33 +02:00
statfs.c
Add a "nosymfollow" mount option.
2020-08-27 16:06:47 -04:00
super.c
vfs: make freeze_super abort when sync_filesystem returns error
2022-02-23 12:00:59 +01:00
sync.c
Merge 5.8-rc1 into android-mainline
2020-06-25 14:25:32 +02:00
timerfd.c
ANDROID: fs: Add vendor hooks for ep_create_wakeup_source & timerfd_create
2021-03-24 17:57:22 +00:00
userfaultfd.c
UPSTREAM: mm: refactor vm_area_struct::anon_vma_name usage code
2022-03-25 16:28:27 +00:00
utimes.c
fs: expose utimes_common
2020-07-31 08:16:01 +02:00
xattr.c
Merge d5660df4a5 ("Merge branch 'akpm' (patches from Andrew)") into android-mainline
2020-10-25 11:57:29 +01:00