21 lines
894 B
Diff
21 lines
894 B
Diff
diff -urNp coreutils-8.22-orig/tests/dd/sparse.sh coreutils-8.22/tests/dd/sparse.sh
|
|
--- coreutils-8.22-orig/tests/dd/sparse.sh 2013-12-04 06:48:30.000000000 -0800
|
|
+++ coreutils-8.22/tests/dd/sparse.sh 2014-04-12 17:48:22.301975386 -0700
|
|
@@ -61,8 +61,15 @@ if test $(kb_alloc file.in) -gt 3000; th
|
|
dd if=file.in of=file.out bs=2M conv=sparse
|
|
test 2500 -lt $(kb_alloc file.out) || fail=1
|
|
|
|
+ # Note we recreate a sparse file first to avoid
|
|
+ # speculative preallocation seen in XFS, where a write() that
|
|
+ # extends a file can preallocate some extra space that
|
|
+ # a subsequent seek will not convert to a hole.
|
|
+ rm -f file.out
|
|
+ truncate --size=3M file.out
|
|
+
|
|
# Ensure that this 1MiB string of NULs *is* converted to a hole.
|
|
- dd if=file.in of=file.out bs=1M conv=sparse
|
|
+ dd if=file.in of=file.out bs=1M conv=sparse,notrunc
|
|
test $(kb_alloc file.out) -lt 2500 || fail=1
|
|
|
|
fi
|