diff options
| -rw-r--r-- | sys/vm/vm_mmap.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/sys/vm/vm_mmap.c b/sys/vm/vm_mmap.c index 987318d..b46a663 100644 --- a/sys/vm/vm_mmap.c +++ b/sys/vm/vm_mmap.c @@ -94,7 +94,7 @@ SYSCTL_INT(_vm, OID_AUTO, max_proc_mmap, CTLFLAG_RW, &max_proc_mmap, 0, ""); /* * Set the maximum number of vm_map_entry structures per process. Roughly * speaking vm_map_entry structures are tiny, so allowing them to eat 1/100 - * of our KVM malloc space still results in generous limits. We want a + * of our KVM malloc space still results in generous limits. We want a * default that is good enough to prevent the kernel running out of resources * if attacked from compromised user account but generous enough such that * multi-threaded processes are not unduly inconvenienced. @@ -166,7 +166,7 @@ ogetpagesize(td, uap) #endif /* COMPAT_43 || COMPAT_SUNOS */ -/* +/* * Memory Map (mmap) system call. Note that the file offset * and address are allowed to be NOT page aligned, though if * the MAP_FIXED flag it set, both must have the same remainder @@ -341,7 +341,7 @@ mmap(td, uap) * XXX hack to handle use of /dev/zero to map anon memory (ala * SunOS). */ - if ((vp->v_type == VCHR) && + if ((vp->v_type == VCHR) && (vp->v_rdev->si_devsw->d_flags & D_MMAP_ANON)) { handle = NULL; maxprot = VM_PROT_ALL; @@ -427,7 +427,7 @@ mmap(td, uap) * per process. Scale with the number of rforks sharing the map * to make the limit reasonable for threads. */ - if (max_proc_mmap && + if (max_proc_mmap && vms->vm_map.nentries >= max_proc_mmap * vms->vm_refcnt) { error = ENOMEM; goto done; @@ -761,7 +761,7 @@ madvise(td, uap) */ start = trunc_page((vm_offset_t) uap->addr); end = round_page((vm_offset_t) uap->addr + uap->len); - + if (vm_map_madvise(map, start, end, uap->behav)) return (EINVAL); return (0); @@ -836,7 +836,7 @@ RestartScan: if ((current->eflags & MAP_ENTRY_IS_SUB_MAP) || current->object.vm_object == NULL) continue; - + /* * limit this scan to the current map entry and the * limits for the mincore call @@ -955,7 +955,7 @@ RestartScan: } ++lastvecindex; } - + /* * If the map has changed, due to the subyte, the previous * output may be invalid. |
