diff options
| -rw-r--r-- | src/vppinfra/linux/mem.c | 10 | ||||
| -rw-r--r-- | src/vppinfra/mem.h | 2 |
2 files changed, 9 insertions, 3 deletions
diff --git a/src/vppinfra/linux/mem.c b/src/vppinfra/linux/mem.c index c4973a6b8e0..75d2a7e0559 100644 --- a/src/vppinfra/linux/mem.c +++ b/src/vppinfra/linux/mem.c @@ -83,7 +83,7 @@ clib_mem_vm_ext_alloc (clib_mem_vm_alloc_t * a) clib_error_t *err = 0; void *addr = 0; u8 *filename = 0; - int mmap_flags = MAP_SHARED; + int mmap_flags = 0; int log2_page_size; int n_pages; int old_mpol = -1; @@ -108,9 +108,13 @@ clib_mem_vm_ext_alloc (clib_mem_vm_alloc_t * a) } } + if (a->flags & CLIB_MEM_VM_F_LOCKED) + mmap_flags |= MAP_LOCKED; + /* if we are creating shared segment, we need file descriptor */ if (a->flags & CLIB_MEM_VM_F_SHARED) { + mmap_flags |= MAP_SHARED; /* if hugepages are needed we need to create mount point */ if (a->flags & CLIB_MEM_VM_F_HUGETLB) { @@ -169,14 +173,14 @@ clib_mem_vm_ext_alloc (clib_mem_vm_alloc_t * a) } else /* not CLIB_MEM_VM_F_SHARED */ { + mmap_flags |= MAP_PRIVATE | MAP_ANONYMOUS; if (a->flags & CLIB_MEM_VM_F_HUGETLB) { - mmap_flags |= MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS; + mmap_flags |= MAP_HUGETLB; log2_page_size = 21; } else { - mmap_flags |= MAP_PRIVATE | MAP_ANONYMOUS; log2_page_size = min_log2 (sysconf (_SC_PAGESIZE)); } } diff --git a/src/vppinfra/mem.h b/src/vppinfra/mem.h index 028289c50a5..55a276f466c 100644 --- a/src/vppinfra/mem.h +++ b/src/vppinfra/mem.h @@ -328,6 +328,7 @@ typedef struct #define CLIB_MEM_VM_F_NUMA_PREFER (1 << 2) #define CLIB_MEM_VM_F_NUMA_FORCE (1 << 3) #define CLIB_MEM_VM_F_HUGETLB_PREALLOC (1 << 4) +#define CLIB_MEM_VM_F_LOCKED (1 << 5) u32 flags; /**< vm allocation flags: <br> CLIB_MEM_VM_F_SHARED: request shared memory, file descriptor will be provided on successful allocation. @@ -337,6 +338,7 @@ typedef struct <br> CLIB_MEM_VM_F_NUMA_FORCE: fail if setting numa policy fails. <br> CLIB_MEM_VM_F_HUGETLB_PREALLOC: pre-allocate hugepages if number of available pages is not sufficient. + <br> CLIB_MEM_VM_F_LOCKED: request locked memory. */ char *name; /**< Name for memory allocation, set by caller. */ uword size; /**< Allocation size, set by caller. */ |