When first creating snapshots, we may free some blocks within it.

These blocks should not have TRIM applied to them.

Submitted by: Kostik Belousov

1 files changed, 5 insertions, 1 deletions

diff --git a/sys/ufs/ffs/ffs_alloc.c b/sys/ufs/ffs/ffs_alloc.c
index 6d27ace..357b152 100644
--- a/sys/ufs/ffs/ffs_alloc.c
+++ b/sys/ufs/ffs/ffs_alloc.c
@@ -2038,7 +2038,11 @@ ffs_blkfree(ump, fs, devvp, bno, size, inum, vtype, dephd)
 	    ffs_snapblkfree(fs, devvp, bno, size, inum, vtype, dephd)) {
 		return;
 	}
-	if (!ump->um_candelete) {
+	/*
+	 * Nothing to delay if TRIM is disabled, or the operation is
+	 * performed on the snapshot.
+	 */
+	if (!ump->um_candelete || devvp->v_type == VREG) {
 		ffs_blkfree_cg(ump, fs, devvp, bno, size, inum, dephd);
 		return;
 	}