[LTP] fallocate01: Convert to new API

[linuxtestproject.agent@gmail.com]

Hi Andrea,

On Fri, 7 Aug 2026, Andrea Cervesato wrote:
> fallocate01: Convert to new API

--- [PATCH 1/2] ---

> Convert the fallocate01 test case from the legacy LTP API (test.h) to the
> new tst_test API using a table-driven struct tcase[] and TST_EXP_* macros.

Could the commit body explain why this nontrivial API conversion is needed?
It currently only restates what was converted and how.

--- [PATCH 2/2] ---

> 	TEST(fallocate(fdw, FALLOC_FL_KEEP_SIZE, 0, BLOCK_SIZE));
> 	if (TST_RET == -1 && (TST_ERR == EOPNOTSUPP || TST_ERR == ENOSYS))
> 		tst_brk(TCONF, "fallocate() not supported");

Could the filesystem support probe be removed, or availability handling be
restricted to ENOSYS?

Linux 7.2 validates the read-only descriptor, invalid offset and length, and
offset-plus-length overflow before consulting file->f_op->fallocate. These
error cases therefore remain valid when the backing filesystem returns
EOPNOTSUPP for a valid allocation. The new probe skips that coverage, unlike
the legacy test.

> Convert the fallocate02 test case from the legacy LTP API (test.h) to the
> new tst_test API using a table-driven struct tcase[] and TST_EXP_FAIL for
> each error-path oracle.

Could the commit body explain why this nontrivial API conversion is needed?
It currently only restates what was converted and how.

Verdict - Needs revision

---
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