Liam R. Howlett 11bc9f5c70 maple_tree: add GFP_KERNEL to allocations in mas_expected_entries() ... commit 099d7439ce upstream. Users complained about OOM errors during fork without triggering compaction. This can be fixed by modifying the flags used in mas_expected_entries() so that the compaction will be triggered in low memory situations. Since mas_expected_entries() is only used during fork, the extra argument does not need to be passed through. Additionally, the two test_maple_tree test cases and one benchmark test were altered to use the correct locking type so that allocations would not trigger sleeping and thus fail. Testing was completed with lockdep atomic sleep detection. The additional locking change requires rwsem support additions to the tools/ directory through the use of pthreads pthread_rwlock_t. With this change test_maple_tree works in userspace, as a module, and in-kernel. Users may notice that the system gave up early on attempting to start new processes instead of attempting to reclaim memory. Link: https://lkml.kernel.org/r/20230915093243epcms1p46fa00bbac1ab7b7dca94acb66c44c456@epcms1p4 Link: https://lkml.kernel.org/r/20231012155233.2272446-1-Liam.Howlett@oracle.com Fixes: 54a611b605 ("Maple Tree: add new data structure") Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com> Reviewed-by: Peng Zhang <zhangpeng.00@bytedance.com> Cc: <jason.sim@samsung.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-11-02 09:36:48 +01:00
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accounting
arch	asm-generic: regression fix for 6.5	2023-08-18 18:13:36 +02:00
bootconfig
bpf	bpftool: Use a local bpf_perf_event_value to fix accessing its fields	2023-09-13 09:53:02 +02:00
build	perf build: Update build rule for generated files	2023-09-19 12:30:26 +02:00
certs
cgroup
counter	tools/counter: Makefile: Replace rmdir by rm to avoid make,clean failure	2023-07-24 10:29:52 -04:00
debugging
edid
firewire
firmware
gpio
hv	vmbus_testing: fix wrong python syntax for integer value comparison	2023-07-23 23:19:30 +00:00
iio	tools: iio: iio_generic_buffer: Fix some integer type and calculation	2023-09-23 11:14:28 +02:00
include	maple_tree: add GFP_KERNEL to allocations in mas_expected_entries()	2023-11-02 09:36:48 +01:00
io_uring
kvm/kvm_stat
laptop
leds
lib	libbpf: Free btf_vmlinux when closing bpf_object	2023-09-23 11:14:22 +02:00
memory-model
mm	tools/mm: fix undefined reference to pthread_once	2023-09-19 12:30:13 +02:00
net/ynl	tools: ynl-gen: fix parse multi-attr enum attribute	2023-07-26 13:38:23 -07:00
objtool	objtool: Fix _THIS_IP_ detection for cold functions	2023-10-06 13:16:12 +02:00
pci
pcmcia
perf	perf dlfilter: Fix use of addr_location__exit() in dlfilter__object_code()	2023-10-25 12:16:22 +02:00
power	platform-drivers-x86 for v6.5-1	2023-06-30 14:50:00 -07:00
rcu
scripts
spi
testing	selftests/mm: include mman header to access MREMAP_DONTUNMAP identifier	2023-11-02 09:36:48 +01:00
thermal
time
tracing	rtla/timerlat: Do not stop user-space if a cpu is offline	2023-10-10 22:03:00 +02:00
usb
verification
virtio	tools/virtio: fix build break for aarch64	2023-06-27 10:47:08 -04:00
wmi
workqueue
Makefile