git: 93c4f310fc65 - main - vm_fault: correct mpred update after alloc fail

[Doug Moore]

The branch main has been updated by dougm:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=93c4f310fc653b0b7dda57043430dac8c7feaece

commit 93c4f310fc653b0b7dda57043430dac8c7feaece
Author:     Doug Moore <do...@freebsd.org>
AuthorDate: 2025-03-28 07:01:50 +0000
Commit:     Doug Moore <do...@freebsd.org>
CommitDate: 2025-03-28 07:01:50 +0000

    vm_fault: correct mpred update after alloc fail
    
    Find the predecessor in dst_object, not src_object.
    
    Fixes: 6d6c97fb72a7 
<https://reviews.freebsd.org/rG6d6c97fb72a7dce85008cef891d093b24dcbb380> 
("vm_fault: update pred lock acq in copy_entry")
    
    Reported by:    markj
    Reviewed by:    markj
    Differential Revision:  https://reviews.freebsd.org/D49547
---
 sys/vm/vm_fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/vm/vm_fault.c b/sys/vm/vm_fault.c
index 2e254e255dce..48a7a47e4c59 100644
--- a/sys/vm/vm_fault.c
+++ b/sys/vm/vm_fault.c
@@ -2208,7 +2208,7 @@ again:
                                VM_OBJECT_RUNLOCK(object);
                                vm_wait(dst_object);
                                VM_OBJECT_WLOCK(dst_object);
-                               mpred = vm_page_mpred(src_object, pindex);
+                               mpred = vm_page_mpred(dst_object, pindex);
                                goto again;
                        }