git: a9d6f1fe0a2f - main - Remove some remaining references to VM_ALLOC_NOOBJ

The branch main has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=a9d6f1fe0a2f852efe7a324f65d7142537b2c14e

commit a9d6f1fe0a2f852efe7a324f65d7142537b2c14e
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2021-10-20 00:28:54 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2021-10-20 01:22:56 +0000

    Remove some remaining references to VM_ALLOC_NOOBJ
    
    Reviewed by:    alc, kib
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D32037
---
 sys/vm/uma.h      | 3 ++-
 sys/vm/uma_core.c | 2 +-
 sys/vm/vm_page.h  | 3 ++-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/sys/vm/uma.h b/sys/vm/uma.h
index 5d473ba909b6..743e02cdddf9 100644
--- a/sys/vm/uma.h
+++ b/sys/vm/uma.h
@@ -483,7 +483,8 @@ void uma_zone_reserve(uma_zone_t zone, int nitems);
 
 /*
  * Reserves the maximum KVA space required by the zone and configures the zone
- * to use a VM_ALLOC_NOOBJ-based backend allocator.
+ * to use a backend that allocates physical memory and maps it using the
+ * reserved KVA. 
  *
  * Arguments:
  *	zone  The zone to update.
diff --git a/sys/vm/uma_core.c b/sys/vm/uma_core.c
index 68553bda2249..35ed473da5ca 100644
--- a/sys/vm/uma_core.c
+++ b/sys/vm/uma_core.c
@@ -2014,7 +2014,7 @@ fail:
 }
 
 /*
- * Allocates a number of pages from within an object
+ * Allocates a number of pages not belonging to a VM object
  *
  * Arguments:
  *	bytes  The number of bytes requested
diff --git a/sys/vm/vm_page.h b/sys/vm/vm_page.h
index 140ea7e2fadb..21e33facc0a8 100644
--- a/sys/vm/vm_page.h
+++ b/sys/vm/vm_page.h
@@ -542,9 +542,10 @@ vm_page_t PHYS_TO_VM_PAGE(vm_paddr_t pa);
 #define	VM_ALLOC_WIRED		0x0020	/* (acgnp) Allocate a wired page */
 #define	VM_ALLOC_ZERO		0x0040	/* (acgnp) Allocate a zeroed page */
 #define	VM_ALLOC_NORECLAIM	0x0080	/* (c) Do not reclaim after failure */
-#define	VM_ALLOC_NOOBJ		0x0100	/* (acg) No associated object */
+#define	VM_ALLOC_AVAIL0		0x0100
 #define	VM_ALLOC_NOBUSY		0x0200	/* (acgp) Do not excl busy the page */
 #define	VM_ALLOC_NOCREAT	0x0400	/* (gp) Don't create a page */
+#define	VM_ALLOC_AVAIL1		0x0800
 #define	VM_ALLOC_IGN_SBUSY	0x1000	/* (gp) Ignore shared busy flag */
 #define	VM_ALLOC_NODUMP		0x2000	/* (ag) don't include in dump */
 #define	VM_ALLOC_SBUSY		0x4000	/* (acgp) Shared busy the page */