[vpsAdminOS] change zfs_dmu_offset_next_sync=0 behavior

For SEEK_DATA/SEEK_HOLE, act like the file is non-sparse. Signed-off-by: Pavel Snajdr <snajpa@snajpa.net>
vpsfreecz · Aug 29, 2023 · 9e43766 · 9e43766
1 parent f4e50f6
commit 9e43766
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/module/zfs/dmu.c b/module/zfs/dmu.c
@@ -2194,7 +2194,10 @@ dmu_offset_next(objset_t *os, uint64_t object, boolean_t hole, uint64_t *off)
 			goto restart;
 		}
 
-		err = SET_ERROR(EBUSY);
+		if (hole)
+			*off = file_sz;
+		else
+			err = SET_ERROR(EBUSY);
 	} else {
 		err = dnode_next_offset(dn, DNODE_FIND_HAVELOCK |
 		    (hole ? DNODE_FIND_HOLE : 0), off, 1, 1, 0);