[v1.2 backport] Memory optimizations: remove BTF and kallsyms caches #3036
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[ upstream commit f6bc9f7 ("[ksyms] Do not cache ksyms to reduce memory consumption") ] We use ksyms for checking the proper exit hooks when loading the base sensor. Furthermore, we use it when we add a kprobe policy for a function that is part of a kernel module. Having that always in memory, uses a lot of memory. This patch makes the read of ksyms when we need that. Signed-off-by: Anastasios Papagiannis <tasos.papagiannnis@gmail.com>
[ upstream commit 6f70926 ("[btf] Flush kernel spec (BTF) after loading a sensor") ] This patch flushes the BTF when we complete the loading of a sensor. Signed-off-by: Anastasios Papagiannis <tasos.papagiannnis@gmail.com>
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Oct 23, 2024
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Backport in v1.2 of #2937.