The branch stable/13 has been updated by kib:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=15def34bd8c3703c13b6fd5eb681c10c7e33b304

commit 15def34bd8c3703c13b6fd5eb681c10c7e33b304
Author:     Konstantin Belousov <[email protected]>
AuthorDate: 2022-01-28 04:37:23 +0000
Commit:     Konstantin Belousov <[email protected]>
CommitDate: 2022-02-07 09:38:50 +0000

    Add GB_NOWITNESS flag
    
    (cherry picked from commit c02780b78c7f1df3e682e1a88b380820c288ec04)
---
 sys/kern/vfs_bio.c | 5 ++++-
 sys/sys/buf.h      | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/sys/kern/vfs_bio.c b/sys/kern/vfs_bio.c
index 4491033d44eb..3798d9137d3b 100644
--- a/sys/kern/vfs_bio.c
+++ b/sys/kern/vfs_bio.c
@@ -3987,7 +3987,10 @@ loop:
                 * it must be on a queue.
                 */
                lockflags = LK_EXCLUSIVE | LK_INTERLOCK |
-                   ((flags & GB_LOCK_NOWAIT) ? LK_NOWAIT : LK_SLEEPFAIL);
+                   ((flags & GB_LOCK_NOWAIT) != 0 ? LK_NOWAIT : LK_SLEEPFAIL);
+#ifdef WITNESS
+               lockflags |= (flags & GB_NOWITNESS) != 0 ? LK_NOWITNESS : 0;
+#endif
 
                error = BUF_TIMELOCK(bp, lockflags,
                    BO_LOCKPTR(bo), "getblk", slpflag, slptimeo);
diff --git a/sys/sys/buf.h b/sys/sys/buf.h
index e1b0450e2613..fcc4a4689130 100644
--- a/sys/sys/buf.h
+++ b/sys/sys/buf.h
@@ -497,6 +497,7 @@ buf_track(struct buf *bp __unused, const char *location 
__unused)
 #define        GB_CKHASH       0x0020          /* If reading, calc checksum 
hash */
 #define        GB_NOSPARSE     0x0040          /* Do not instantiate holes */
 #define        GB_CVTENXIO     0x0080          /* Convert errors to ENXIO */
+#define        GB_NOWITNESS    0x0100          /* Do not record for WITNESS */
 
 #ifdef _KERNEL
 extern int     nbuf;                   /* The number of buffer headers */

Reply via email to