git: 9c923575606b - main - vm/vm_object.h: clarify the OBJ_ONEMAPPING semantic

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=9c923575606bbd29dcf0ec3384150d2d67136cbb

commit 9c923575606bbd29dcf0ec3384150d2d67136cbb
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2025-12-31 22:26:38 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2026-01-04 22:47:51 +0000

    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
---
 sys/vm/vm_object.h | 5 +++--
 1 file 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 */