Matthew Wilcox (Oracle) 4a3e0d51c3 XArray: Do not return sibling entries from xa_load() ... commit cbc0285433 upstream. It is possible for xa_load() to observe a sibling entry pointing to another sibling entry. An example: Thread A: Thread B: xa_store_range(xa, entry, 188, 191, gfp); xa_load(xa, 191); entry = xa_entry(xa, node, 63); [entry is a sibling of 188] xa_store_range(xa, entry, 184, 191, gfp); if (xa_is_sibling(entry)) offset = xa_to_sibling(entry); entry = xa_entry(xas->xa, node, offset); [entry is now a sibling of 184] It is sufficient to go around this loop until we hit a non-sibling entry. Sibling entries always point earlier in the node, so we are guaranteed to terminate this search. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Fixes: 6b24ca4a1a ("mm: Use multi-index entries in the page cache") Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-09-13 09:43:00 +02:00
..
accounting
arch	x86/bugs: Increase the x86 bugs vector size to two u32s	2023-08-08 20:03:50 +02:00
bootconfig	bootconfig: Fix testcase to increase max node	2023-03-30 12:49:07 +02:00
bpf	bpftool: Use a local bpf_perf_event_value to fix accessing its fields	2023-09-13 09:42:30 +02:00
build	perf bpf: Fix build with libbpf 0.7.0 by checking if bpf_program__set_insns() is available	2022-10-25 17:40:48 -03:00
certs
cgroup	iocost_monitor: reorder BlkgIterator	2022-09-23 16:57:10 -10:00
counter
debugging
edid
firewire
firmware
gpio	tools: gpio: fix debounce_period_us output of lsgpio	2023-06-21 16:00:52 +02:00
hv	vmbus_testing: fix wrong python syntax for integer value comparison	2023-09-13 09:42:23 +02:00
iio	tools/iio/iio_utils:fix memory leak	2023-03-11 13:55:35 +01:00
include	tools headers UAPI: Sync the linux/in.h with the kernel sources	2023-06-05 09:26:22 +02:00
io_uring
kvm/kvm_stat	tools/kvm_stat: update exit reasons for vmx/svm/aarch64/userspace	2022-11-09 12:26:52 -05:00
laptop
leds
lib	libbpf: Fix realloc API handling in zero-sized edge cases	2023-09-13 09:42:30 +02:00
memory-model
objtool	objtool/x86: Fix SRSO mess	2023-08-27 21:01:31 +02:00
pci
pcmcia
perf	perf test uprobe_from_different_cu: Skip if there is no gcc	2023-08-11 12:08:13 +02:00
power	cpupower: Make TSC read per CPU for Mperf monitor	2023-05-24 17:32:43 +01:00
rcu
scripts
spi
testing	XArray: Do not return sibling entries from xa_load()	2023-09-13 09:43:00 +02:00
thermal
time
tracing	tools/tracing/rtla: osnoise_hist: use total duration for average calculation	2023-03-10 09:33:26 +01:00
usb
verification	rv/dot2c: Make automaton definition static	2022-10-20 16:02:45 -04:00
virtio	tools/virtio: fix the vringh test for virtio ring changes	2023-02-22 12:59:42 +01:00
vm	tools/mm/page_owner_sort.c: fix TGID output when cull=tg is used	2023-04-26 14:28:39 +02:00
wmi
Makefile