From: Darrick J. Wong <djwong@xxxxxxxxxx>
Teach fsstress to try to unshare file blocks on filesystems, seeing how
the recent addition to fsx has uncovered a lot of bugs.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
ltp/fsstress.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/ltp/fsstress.c b/ltp/fsstress.c
index b8d025d3a0..8cd45c7a85 100644
--- a/ltp/fsstress.c
+++ b/ltp/fsstress.c
@@ -139,6 +139,7 @@ typedef enum {
OP_TRUNCATE,
OP_UNLINK,
OP_UNRESVSP,
+ OP_UNSHARE,
OP_URING_READ,
OP_URING_WRITE,
OP_WRITE,
@@ -246,6 +247,7 @@ void punch_f(opnum_t, long);
void zero_f(opnum_t, long);
void collapse_f(opnum_t, long);
void insert_f(opnum_t, long);
+void unshare_f(opnum_t, long);
void read_f(opnum_t, long);
void readlink_f(opnum_t, long);
void readv_f(opnum_t, long);
@@ -339,6 +341,7 @@ struct opdesc ops[OP_LAST] = {
[OP_TRUNCATE] = {"truncate", truncate_f, 2, 1 },
[OP_UNLINK] = {"unlink", unlink_f, 1, 1 },
[OP_UNRESVSP] = {"unresvsp", unresvsp_f, 1, 1 },
+ [OP_UNSHARE] = {"unshare", unshare_f, 1, 1 },
[OP_URING_READ] = {"uring_read", uring_read_f, -1, 0 },
[OP_URING_WRITE] = {"uring_write", uring_write_f, -1, 1 },
[OP_WRITE] = {"write", write_f, 4, 1 },
@@ -3767,6 +3770,7 @@ struct print_flags falloc_flags [] = {
{ FALLOC_FL_COLLAPSE_RANGE, "COLLAPSE_RANGE"},
{ FALLOC_FL_ZERO_RANGE, "ZERO_RANGE"},
{ FALLOC_FL_INSERT_RANGE, "INSERT_RANGE"},
+ { FALLOC_FL_UNSHARE_RANGE, "UNSHARE_RANGE"},
{ -1, NULL}
};
@@ -4469,6 +4473,16 @@ insert_f(opnum_t opno, long r)
#endif
}
+void
+unshare_f(opnum_t opno, long r)
+{
+#ifdef HAVE_LINUX_FALLOC_H
+# ifdef FALLOC_FL_UNSHARE_RANGE
+ do_fallocate(opno, r, FALLOC_FL_UNSHARE_RANGE);
+# endif
+#endif
+}
+
void
read_f(opnum_t opno, long r)
{
