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| author | Konstantin Belousov <kib@FreeBSD.org> | 2025-12-31 22:26:38 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2026-01-04 22:47:51 +0000 |
| commit | 9c923575606bbd29dcf0ec3384150d2d67136cbb (patch) | |
| tree | dda2c3480ba06a8da05eacd71fe1a3fcb9c523d5 | |
| parent | 2f83319214d9adb8ab7a77e35d1014658b3f9cae (diff) | |
vm/vm_object.h: clarify the OBJ_ONEMAPPING semantic
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
Differential revision: https://reviews.freebsd.org/D54459
| -rw-r--r-- | sys/vm/vm_object.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/vm/vm_object.h b/sys/vm/vm_object.h index 98afb93f8389..cd1d10d4fb89 100644 --- a/sys/vm/vm_object.h +++ b/sys/vm/vm_object.h @@ -197,8 +197,9 @@ struct vm_object { #define OBJ_SPLIT 0x00000400 /* object is being split */ #define OBJ_COLLAPSING 0x00000800 /* Parent of collapse. */ #define OBJ_COLORED 0x00001000 /* pg_color is defined */ -#define OBJ_ONEMAPPING 0x00002000 /* One USE (a single, non-forked) - mapping flag */ +#define OBJ_ONEMAPPING 0x00002000 /* Each page is allowed to have at most + one managed mapping, all in the same + vm_map */ #define OBJ_PAGERPRIV1 0x00004000 /* Pager private */ #define OBJ_PAGERPRIV2 0x00008000 /* Pager private */ #define OBJ_SYSVSHM 0x00010000 /* SysV SHM */ |