diff options
| author | Christoph Lameter <cl@linux.com> | 2011-11-01 01:07:34 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-01 01:30:46 +0100 |
| commit | e10d59f2c3decaf22cc5d3de7040eba202bc2df3 (patch) | |
| tree | 68a25b573ddd1701d6a50f22b26287eca8e5c1ea /include | |
| parent | mm: distinguish between mlocked and pinned pages (diff) | |
| download | linux-e10d59f2c3decaf22cc5d3de7040eba202bc2df3.tar.xz linux-e10d59f2c3decaf22cc5d3de7040eba202bc2df3.zip | |
mm: add comments to explain mm_struct fields
Add comments to explain the page statistics field in the mm_struct.
[akpm@linux-foundation.org: add missing ;]
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/mm_types.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index f3175830cc73..3e01a19a91e8 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -304,8 +304,15 @@ struct mm_struct { unsigned long hiwater_rss; /* High-watermark of RSS usage */ unsigned long hiwater_vm; /* High-water virtual memory usage */ - unsigned long total_vm, locked_vm, pinned_vm, shared_vm, exec_vm; - unsigned long stack_vm, reserved_vm, def_flags, nr_ptes; + 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 shared_vm; /* Shared pages (files) */ + unsigned long exec_vm; /* VM_EXEC & ~VM_WRITE */ + unsigned long stack_vm; /* VM_GROWSUP/DOWN */ + unsigned long reserved_vm; /* VM_RESERVED|VM_IO pages */ + unsigned long def_flags; + unsigned long nr_ptes; /* Page table pages */ unsigned long start_code, end_code, start_data, end_data; unsigned long start_brk, brk, start_stack; unsigned long arg_start, arg_end, env_start, env_end; |