Lorenzo Stoakes 4535cb331c mm/vma: use vmg->target to specify target VMA for new VMA merge ... In commit 3a75ccba04 ("mm: simplify vma merge structure and expand comments") we introduced the vmg->target field to make the merging of existing VMAs simpler - clarifying precisely which VMA would eventually become the merged VMA once the merge operation was complete. New VMA merging did not get quite the same treatment, retaining the rather confusing convention of storing the target VMA in vmg->middle. This patch corrects this state of affairs, utilising vmg->target for this purpose for both vma_merge_new_range() and also for vma_expand(). We retain the WARN_ON for vmg->middle being specified in vma_merge_new_range() as doing so would make no sense, but add an additional debug assert for setting vmg->target. This patch additionally updates VMA userland testing to account for this change. [lorenzo.stoakes@oracle.com: make comment consistent in vma_expand()] Link: https://lkml.kernel.org/r/c54f45e3-a6ac-4749-93c0-cc9e3080ee37@lucifer.local Link: https://lkml.kernel.org/r/20250613184807.108089-1-lorenzo.stoakes@oracle.com Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Cc: Jann Horn <jannh@google.com> Cc: Kees Cook <kees@kernel.org> Cc: Liam Howlett <liam.howlett@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2025-07-09 22:42:11 -07:00
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accounting
arch	LoongArch: Replace __ASSEMBLY__ with __ASSEMBLER__ in headers	2025-06-26 20:07:10 +08:00
bootconfig	tools/bootconfig: specify LDFLAGS as an argument to CC	2025-05-16 11:22:54 +09:00
bpf	tools/resolve_btfids: Fix build when cross compiling kernel with clang.	2025-06-10 09:09:27 -07:00
build
certs
cgroup
counter
crypto
debugging
firewire
firmware
gpio
hv	tools: hv: Enable debug logs for hv_kvp_daemon	2025-05-23 16:30:55 +00:00
iio
include	tools headers: Synchronize linux/bits.h with the kernel sources	2025-06-17 16:55:24 -03:00
kvm/kvm_stat
laptop
leds
lib	libbpf: Fix possible use-after-free for externs	2025-06-25 12:28:58 -07:00
memory-model
mm	tools/mm: add script to display page state for a given PID and VADDR	2025-07-09 22:41:53 -07:00
net	tools: ynl: fix mixing ops and notifications on one socket	2025-06-19 08:37:39 -07:00
objtool	objtool: Add missing endian conversion to read_annotate()	2025-07-01 15:02:04 +02:00
pcmcia
perf	perf bench futex: Fix prctl include in musl libc	2025-06-17 18:29:42 -03:00
power	cpupower: split unitdir from libdir in Makefile	2025-06-09 10:17:46 -06:00
rcu
sched_ext
scripts
sound
spi
testing	mm/vma: use vmg->target to specify target VMA for new VMA merge	2025-07-09 22:42:11 -07:00
thermal
time
tracing	tracing tools updates for v6.16:	2025-05-29 20:59:52 -07:00
usb
verification
virtio
wmi
workqueue
writeback
Makefile