diff options
Diffstat (limited to 'vm/vm_map.c')
| -rw-r--r-- | vm/vm_map.c | 26 |
1 files changed, 16 insertions, 10 deletions
diff --git a/vm/vm_map.c b/vm/vm_map.c index 7db76b7b..6c06f064 100644 --- a/vm/vm_map.c +++ b/vm/vm_map.c @@ -1419,13 +1419,13 @@ vm_map_entry_reset_wired(vm_map_t map, vm_map_entry_t entry) * is downgraded to a read lock. The caller should always consider * the map read locked on return. */ -static void -vm_map_pageable_scan(struct vm_map *map, - struct vm_map_entry *start, - struct vm_map_entry *end) +static void vm_map_pageable_scan( + vm_map_t map, + vm_map_entry_t start_entry, + vm_offset_t end) { - struct vm_map_entry *entry; - boolean_t do_wire_faults; + vm_map_entry_t entry; + boolean_t do_wire_faults; /* * Pass 1. Update counters and prepare wiring faults. @@ -1433,7 +1433,10 @@ vm_map_pageable_scan(struct vm_map *map, do_wire_faults = FALSE; - for (entry = start; entry != end; entry = entry->vme_next) { + for (entry = start_entry; + (entry != vm_map_to_entry(map)) && + (entry->vme_start < end); + entry = entry->vme_next) { /* * Unwiring. @@ -1558,7 +1561,10 @@ vm_map_pageable_scan(struct vm_map *map, vm_map_lock_write_to_read(map); } - for (entry = start; entry != end; entry = entry->vme_next) { + for (entry = start_entry; + (entry != vm_map_to_entry(map)) && + (entry->vme_end <= end); + entry = entry->vme_next) { /* * The wiring count can only be 1 if it was * incremented by this function right before @@ -1683,7 +1689,7 @@ kern_return_t vm_map_protect( current = next; /* Returns with the map read-locked if successful */ - vm_map_pageable_scan(map, entry, current); + vm_map_pageable_scan(map, entry, end); vm_map_unlock(map); return(KERN_SUCCESS); @@ -1822,7 +1828,7 @@ kern_return_t vm_map_pageable( } /* Returns with the map read-locked */ - vm_map_pageable_scan(map, start_entry, end_entry); + vm_map_pageable_scan(map, start_entry, end); if (lock_map) { vm_map_unlock(map); |