The branch stable/13 has been updated by mckusick:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=98b660abffacc3caa36f59b7eb62955a5f5e151b

commit 98b660abffacc3caa36f59b7eb62955a5f5e151b
Author:     Kirk McKusick <[email protected]>
AuthorDate: 2023-07-26 02:42:41 +0000
Commit:     Kirk McKusick <[email protected]>
CommitDate: 2023-08-05 06:20:25 +0000

    Add quitclean command to fsdb(8) to request a filesystem not be marked 
dirty.
    
    Sponsored-by: The FreeBSD Foundation
    (cherry picked from commit d059e44b800a308822ad920c28f948a1afcc0fa3)
---
 sbin/fsdb/fsdb.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sbin/fsdb/fsdb.c b/sbin/fsdb/fsdb.c
index c80d4b65a830..1564810ee79d 100644
--- a/sbin/fsdb/fsdb.c
+++ b/sbin/fsdb/fsdb.c
@@ -163,6 +163,7 @@ CMDFUNC(uplink);                    /* incr link */
 CMDFUNC(downlink);                     /* decr link */
 CMDFUNC(linkcount);                    /* set link count */
 CMDFUNC(quit);                         /* quit */
+CMDFUNC(quitclean);                    /* quit with filesystem marked clean */
 CMDFUNC(findblk);                      /* find block */
 CMDFUNC(ls);                           /* list directory */
 CMDFUNC(rm);                           /* remove name */
@@ -217,6 +218,7 @@ struct cmdtable cmds[] = {
        { "ctime", "Change ctime of current inode to CTIME", 2, 2, FL_WR, 
chctime },
        { "atime", "Change atime of current inode to ATIME", 2, 2, FL_WR, 
chatime },
        { "chdb", "Change db pointer N of current inode to BLKNO", 3, 3, 
FL_CWR, chdb },
+       { "quitclean", "Exit with filesystem marked clean", 1, 1, FL_RO, 
quitclean },
        { "quit", "Exit", 1, 1, FL_RO, quit },
        { "q", "Exit", 1, 1, FL_RO, quit },
        { "exit", "Exit", 1, 1, FL_RO, quit },
@@ -402,6 +404,16 @@ CMDFUNCSTART(quit)
     return -1;
 }
 
+CMDFUNCSTART(quitclean)
+{
+    if (fscritmodified) {
+       printf("Warning: modified filesystem marked clean\n");
+       fscritmodified = 0;
+       sblock.fs_clean = 1;
+    }
+    return -1;
+}
+
 CMDFUNCSTART(uplink)
 {
     if (!checkactive())

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