Jiuzhu Dong 2dcc4a359d mm/dump: add pid and backtrace for every memory node
usage:
echo <pid/used/free> trace > /proc/memdump
echo used > /proc/memdump //output all used memory info with backtrace
echo free > /proc/memdump //output all free memory info
echo 22 > /proc/memdump //output used memory info for task pid is 22 with backtrace

Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
2022-02-26 14:32:42 +08:00
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