diff options
Diffstat (limited to 'src/vppinfra/linux/mem.c')
| -rw-r--r-- | src/vppinfra/linux/mem.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/src/vppinfra/linux/mem.c b/src/vppinfra/linux/mem.c index 69ac871567c..3b7294f038a 100644 --- a/src/vppinfra/linux/mem.c +++ b/src/vppinfra/linux/mem.c @@ -386,21 +386,59 @@ done: clib_error_t * clib_mem_vm_ext_map (clib_mem_vm_map_t * a) { + long unsigned int old_mask[16] = { 0 }; int mmap_flags = MAP_SHARED; + clib_error_t *err = 0; + int old_mpol = -1; void *addr; + int rv; + + if (a->numa_node) + { + rv = get_mempolicy (&old_mpol, old_mask, sizeof (old_mask) * 8 + 1, 0, + 0); + + if (rv == -1) + { + err = clib_error_return_unix (0, "get_mempolicy"); + goto done; + } + } if (a->requested_va) mmap_flags |= MAP_FIXED; + if (old_mpol != -1) + { + long unsigned int mask[16] = { 0 }; + mask[0] = 1 << a->numa_node; + rv = set_mempolicy (MPOL_BIND, mask, sizeof (mask) * 8 + 1); + if (rv == -1) + { + err = clib_error_return_unix (0, "set_mempolicy"); + goto done; + } + } + addr = (void *) mmap (uword_to_pointer (a->requested_va, void *), a->size, PROT_READ | PROT_WRITE, mmap_flags, a->fd, 0); if (addr == MAP_FAILED) return clib_error_return_unix (0, "mmap"); + /* re-apply old numa memory policy */ + if (old_mpol != -1 && + set_mempolicy (old_mpol, old_mask, sizeof (old_mask) * 8 + 1) == -1) + { + err = clib_error_return_unix (0, "set_mempolicy"); + goto done; + } + a->addr = addr; CLIB_MEM_UNPOISON (addr, a->size); - return 0; + +done: + return err; } /* |