Jinjiang Tu 3a9e567ca4 mm/ksm: fix ksm exec support for prctl ... Patch series "mm/ksm: fix ksm exec support for prctl", v4. commit 3c6f33b727 ("mm/ksm: support fork/exec for prctl") inherits MMF_VM_MERGE_ANY flag when a task calls execve(). However, it doesn't create the mm_slot, so ksmd will not try to scan this task. The first patch fixes the issue. The second patch refactors to prepare for the third patch. The third patch extends the selftests of ksm to verfity the deduplication really happens after fork/exec inherits ths KSM setting. This patch (of 3): commit 3c6f33b727 ("mm/ksm: support fork/exec for prctl") inherits MMF_VM_MERGE_ANY flag when a task calls execve(). Howerver, it doesn't create the mm_slot, so ksmd will not try to scan this task. To fix it, allocate and add the mm_slot to ksm_mm_head in __bprm_mm_init() when the mm has MMF_VM_MERGE_ANY flag. Link: https://lkml.kernel.org/r/20240328111010.1502191-1-tujinjiang@huawei.com Link: https://lkml.kernel.org/r/20240328111010.1502191-2-tujinjiang@huawei.com Fixes: 3c6f33b727 ("mm/ksm: support fork/exec for prctl") Signed-off-by: Jinjiang Tu <tujinjiang@huawei.com> Reviewed-by: David Hildenbrand <david@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Kefeng Wang <wangkefeng.wang@huawei.com> Cc: Nanyong Sun <sunnanyong@huawei.com> Cc: Rik van Riel <riel@surriel.com> Cc: Stefan Roesch <shr@devkernel.io> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2024-04-25 20:56:29 -07:00
..
9p	fs/9p: fix uninitialized values during inode evict	2024-03-25 14:16:06 +00:00
adfs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
affs
afs	afs: Fix occasional rmdir-then-VNOVNODE with generic/011	2024-03-14 12:13:21 +01:00
autofs
bcachefs	bcachefs fixes for v6.9-rc4	2024-04-11 11:24:55 -07:00
befs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
bfs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
btrfs	for-6.9-rc2-tag	2024-04-08 13:11:11 -07:00
cachefiles
ceph	ceph: switch to use cap_delay_lock for the unlink delay list	2024-04-11 22:56:28 +02:00
coda	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
configfs
cramfs	fs,block: yield devices early	2024-03-27 13:17:15 +01:00
crypto	fscrypt updates for 6.9	2024-03-12 13:17:36 -07:00
debugfs	debugfs: fix wait/cancellation handling during remove	2024-03-07 22:08:15 +00:00
devpts
dlm	dlm for 6.9	2024-03-18 15:39:48 -07:00
ecryptfs
efivarfs
efs
erofs	erofs: drop experimental warning for FSDAX	2024-03-25 10:48:15 +08:00
exfat	Description for this pull request:	2024-03-21 09:47:12 -07:00
exportfs
ext2	\n	2024-03-13 14:30:58 -07:00
ext4	fs,block: yield devices early	2024-03-27 13:17:15 +01:00
f2fs	fs,block: yield devices early	2024-03-27 13:17:15 +01:00
fat	- Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min	2024-03-14 18:03:09 -07:00
freevxfs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
fuse	fuse update for 6.9	2024-03-15 09:47:14 -07:00
gfs2	gfs2 fix	2024-03-25 10:53:39 -07:00
hfs
hfsplus	vfs-6.9.misc	2024-03-11 09:38:17 -07:00
hostfs
hpfs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
hugetlbfs	treewide: use initializer for struct vm_unmapped_area_info	2024-04-25 20:56:27 -07:00
iomap	vfs-6.9.rw_hint	2024-03-04 18:35:21 +01:00
isofs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
jbd2
jffs2	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
jfs	fs,block: yield devices early	2024-03-27 13:17:15 +01:00
kernfs	kernfs: annotate different lockdep class for of->mutex of writable files	2024-04-14 06:55:46 -04:00
lockd	NFSD 6.9 Release Notes	2024-03-12 14:27:37 -07:00
minix
netfs	fscache: Fix error handling in fscache_begin_operation()	2024-03-18 10:33:48 +01:00
nfs	mm: change inlined allocation helpers to account at the call site	2024-04-25 20:55:59 -07:00
nfs_common
nfsd	nfsd-6.9 fixes:	2024-04-06 09:37:50 -07:00
nilfs2	nilfs2: fix OOB in nilfs_set_de_type	2024-04-16 15:39:52 -07:00
nls
notify	fanotify: allow freeze when waiting response for permission events	2024-03-07 12:59:51 +01:00
ntfs3	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
ocfs2	- Kuan-Wei Chiu has developed the well-named series "lib min_heap: Min	2024-03-14 18:03:09 -07:00
omfs
openpromfs
orangefs
overlayfs	ovl: relax WARN_ON in ovl_verify_area()	2024-03-17 15:59:41 +02:00
proc	mm: switch mm->get_unmapped_area() to a flag	2024-04-25 20:56:25 -07:00
pstore	pstore/zone: Don't clear memory twice	2024-03-09 12:33:22 -08:00
qnx4	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
qnx6
quota	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
ramfs	mm: switch mm->get_unmapped_area() to a flag	2024-04-25 20:56:25 -07:00
reiserfs	fs,block: yield devices early	2024-03-27 13:17:15 +01:00
romfs	fs,block: yield devices early	2024-03-27 13:17:15 +01:00
smb	smb3: fix broken reconnect when password changing on the server by allowing password rotation	2024-04-11 16:03:48 -05:00
squashfs	Squashfs: check the inode number is not the invalid value of zero	2024-04-16 15:39:50 -07:00
sysfs	sysfs:Addresses documentation in sysfs_merge_group and sysfs_unmerge_group.	2024-03-07 22:04:50 +00:00
sysv
tracefs	eventfs: Fix kernel-doc comments to functions	2024-04-11 17:42:09 -04:00
ubifs	This pull request contains updates for UBI and UBIFS:	2024-03-21 15:09:29 -07:00
udf	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
ufs	mm, slab: remove last vestiges of SLAB_MEM_SPREAD	2024-03-12 20:32:19 -07:00
unicode
vboxsf	vboxsf: explicitly deny setlease attempts	2024-04-03 16:06:39 +02:00
verity	Networking changes for 6.9.	2024-03-12 17:44:08 -07:00
xfs	Bug fixes for 6.9-rc3:	2024-04-06 09:14:18 -07:00
zonefs	zonefs: Use str_plural() to fix Coccinelle warning	2024-04-10 07:23:47 +09:00
aio.c	aio: Fix null ptr deref in aio_complete() wakeup	2024-04-05 11:20:28 +02:00
anon_inodes.c
attr.c	lsm/stable-6.9 PR 20240312	2024-03-12 20:03:34 -07:00
backing-file.c
bad_inode.c
binfmt_elf_fdpic.c	binfmt: replace deprecated strncpy	2024-03-21 20:20:52 -07:00
binfmt_elf_test.c
binfmt_elf.c
binfmt_flat.c
binfmt_misc.c
binfmt_script.c
buffer.c	vfs-6.9.iomap	2024-03-11 10:07:03 -07:00
char_dev.c
compat_binfmt_elf.c
coredump.c	iov_iter: get rid of 'copy_mc' flag	2024-03-06 10:52:12 +01:00
d_path.c
dax.c	dax: use huge_zero_folio	2024-04-25 20:56:20 -07:00
dcache.c	vfs-6.9.misc	2024-03-11 09:38:17 -07:00
direct-io.c
drop_caches.c
eventfd.c
eventpoll.c	Networking changes for 6.9.	2024-03-12 17:44:08 -07:00
exec.c	mm/ksm: fix ksm exec support for prctl	2024-04-25 20:56:29 -07:00
fcntl.c	vfs-6.9.iomap	2024-03-11 10:07:03 -07:00
fhandle.c
file_table.c	lsm/stable-6.9 PR 20240312	2024-03-12 20:03:34 -07:00
file.c
filesystems.c
fs_context.c
fs_parser.c
fs_pin.c
fs_struct.c
fs_types.c
fs-writeback.c
fsopen.c
init.c
inode.c	bcachefs updates for 6.9	2024-03-15 09:00:09 -07:00
internal.h	pidfs: remove config option	2024-03-13 12:53:53 -07:00
ioctl.c
Kconfig	- Sumanth Korikkar has taught s390 to allocate hotplug-time page frames	2024-03-14 17:43:30 -07:00
Kconfig.binfmt
kernel_read_file.c
libfs.c	pidfs: remove config option	2024-03-13 12:53:53 -07:00
locks.c
Makefile	vfs-6.9.pidfd	2024-03-11 10:21:06 -07:00
mbcache.c
mnt_idmapping.c
mount.h
mpage.c
namei.c	security: Place security_path_post_mknod() where the original IMA call was	2024-04-03 10:21:32 -07:00
namespace.c
nsfs.c	pidfs: remove config option	2024-03-13 12:53:53 -07:00
open.c	lsm/stable-6.9 PR 20240312	2024-03-12 20:03:34 -07:00
pidfs.c	pidfs: remove config option	2024-03-13 12:53:53 -07:00
pipe.c
pnode.c
pnode.h
posix_acl.c	lsm/stable-6.9 PR 20240312	2024-03-12 20:03:34 -07:00
proc_namespace.c
read_write.c
readdir.c
remap_range.c
select.c
seq_file.c
signalfd.c
splice.c
stack.c
stat.c
statfs.c
super.c	fs,block: yield devices early	2024-03-27 13:17:15 +01:00
sync.c
sysctls.c
timerfd.c
userfaultfd.c	userfaultfd: early return in dup_userfaultfd()	2024-04-25 20:56:25 -07:00
utimes.c
xattr.c