diff options
Diffstat (limited to 'tmpfs/tmpfs.c')
| -rw-r--r-- | tmpfs/tmpfs.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tmpfs/tmpfs.c b/tmpfs/tmpfs.c index b691f718..f10b9803 100644 --- a/tmpfs/tmpfs.c +++ b/tmpfs/tmpfs.c @@ -186,6 +186,25 @@ parse_opt (int key, char *arg, struct argp_state *state) case 'K': size <<= 10; break; + case '%': + { + /* Set as a percentage of the machine's physical memory. */ + struct vm_statistics vmstats; + error_t err = vm_statistics (mach_task_self (), &vmstats); + if (err) + { + argp_error (state, "cannot find total physical memory: %s", + strerror (err)); + return err; + } + size = round_page ((((vmstats.free_count + + vmstats.active_count + + vmstats.inactive_count + + vmstats.wire_count) + * vm_page_size) + * size + 99) / 100); + break; + } } size = (off_t) size; if (size < 0) |