diff options
| author |   Konstantin Khlebnikov <koct9i@gmail.com> | 2016-02-02 16:57:46 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-02-03 08:28:43 -0800 |
| commit | 30bdbb78009e67767983085e302bec6d97afc679 (patch) | |
| tree | 8d4084215738d98a6eed66cd7e971e9cca5f279a /include/linux/mm_types.h | |
| parent | mm: warn about VmData over RLIMIT_DATA (diff) | |
| download | wireguard-linux-30bdbb78009e67767983085e302bec6d97afc679.tar.xz wireguard-linux-30bdbb78009e67767983085e302bec6d97afc679.zip | |
mm: polish virtual memory accounting
* add VM_STACK as alias for VM_GROWSUP/DOWN depending on architecture
* always account VMAs with flag VM_STACK as stack (as it was before)
* cleanup classifying helpers
* update comments and documentation
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Tested-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mm_types.h')
| -rw-r--r-- | include/linux/mm_types.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index d3ebb9d21a53..624b78b848b8 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -424,9 +424,9 @@ struct mm_struct { unsigned long total_vm; /* Total pages mapped */ unsigned long locked_vm; /* Pages that have PG_mlocked set */ unsigned long pinned_vm; /* Refcount permanently increased */ - unsigned long data_vm; /* VM_WRITE & ~VM_SHARED/GROWSDOWN */ - unsigned long exec_vm; /* VM_EXEC & ~VM_WRITE */ - unsigned long stack_vm; /* VM_GROWSUP/DOWN */ + unsigned long data_vm; /* VM_WRITE & ~VM_SHARED & ~VM_STACK */ + unsigned long exec_vm; /* VM_EXEC & ~VM_WRITE & ~VM_STACK */ + unsigned long stack_vm; /* VM_STACK */ unsigned long def_flags; unsigned long start_code, end_code, start_data, end_data; unsigned long start_brk, brk, start_stack; |