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| author | Justus Winter <4winter@informatik.uni-hamburg.de> | 2015-08-16 12:54:41 +0200 |
|---|---|---|
| committer | Justus Winter <4winter@informatik.uni-hamburg.de> | 2015-09-14 14:45:05 +0200 |
| commit | 22778b589af94261c2d8d0665220770d0b56d1a8 (patch) | |
| tree | 97bdb1c058f030d30dfe0d566630010572a4fb35 /ipc/ipc_port.h | |
| parent | 81747ac6d3e846d1955edaa94dee9065e541b7d8 (diff) | |
vm: fix locking issues
Avoid accessing fields of `vm_object' objects without having it
locked. These problems have been found using a code transformation
done by Coccinelle that instrumented all accesses with a runtime
check, and manual inspection.
* vm/memory_object.c (memory_object_data_supply): Avoid accessing
fields without the lock.
* vm/vm_fault.c (vm_fault_page): Likewise.
* vm/vm_map.c (vm_map_submap): Properly lock `object'.
(vm_map_copy_overwrite): Avoid accessing fields without the lock.
(vm_map_copyin): Lock `src_object'.
* vm/vm_object.c (_vm_object_setup): Likewise.
(vm_object_allocate): Likewise.
(vm_object_terminate): Avoid accessing fields without the lock.
(vm_object_copy_slowly): Lock `new_object'.
(vm_object_copy_delayed): Lock `src_object' earlier, lock `new_copy'.
(vm_object_shadow): Lock `result'.
(vm_object_enter): Properly lock `object'. Avoid accessing fields
without the lock.
* vm/vm_pageout.c (vm_pageout_setup): Properly lock `old_object'.
Diffstat (limited to 'ipc/ipc_port.h')
0 files changed, 0 insertions, 0 deletions