seccomp: add set_mempolicy_home_node syscall (kernel v5.17, libseccomp v2.5.4)
This syscall is gated by CAP_SYS_NICE, matching the profile in containerd.
containerd: https://github.com/containerd/containerd/commit/a6e52c74fa043a63d7dae4ac6998215f6c1bb6ac
libseccomp: https://github.com/seccomp/libseccomp/commit/d83cb7ac252db91e9ca9c372ea4743e02ba97c50
kernel: https://github.com/torvalds/linux/commit/c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0
mm/mempolicy: add set_mempolicy_home_node syscall
This syscall can be used to set a home node for the MPOL_BIND and
MPOL_PREFERRED_MANY memory policy. Users should use this syscall after
setting up a memory policy for the specified range as shown below.
mbind(p, nr_pages * page_size, MPOL_BIND, new_nodes->maskp,
new_nodes->size + 1, 0);
sys_set_mempolicy_home_node((unsigned long)p, nr_pages * page_size,
home_node, 0);
The syscall allows specifying a home node/preferred node from which
kernel will fulfill memory allocation requests first.
...
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit 1251982cf7a079c97d4e67cfd69d4e03ab55edc7)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
Sebastiaan van Stijn