[LTP] tse_swap: Add fallback definitions for swapon

[linuxtestproject.agent@gmail.com]

Hi Andrea,

On Thu, Sep 3, 2026, Andrea Cervesato wrote:
> [PATCH 1/3] tse_swap: Add fallback definitions for swapon

--- [PATCH 2/3] ---

> static struct tst_test test = {
> 	.needs_root = 1,
> 	.mount_device = 1,

SWAP_FLAG_DISCARD_ONCE and SWAP_FLAG_DISCARD_PAGES were added in Linux
3.11. Add `.min_kver = "3.11"`; older kernels reject these bits and the
test reports TFAIL instead of TCONF.

--- [PATCH 3/3] ---

> 	{
> 		.err_desc = "Invalid swapflags (undefined flag bits)",
> 		.exp_errno = EINVAL,
> 		.path = SWAP_FILE,
> 		.flags = 0x80000,
> 	},

Invalid swap flags started returning EINVAL in Linux 3.4. Add
`.min_kver = "3.4"` so the test skips older kernels, which may accept the
flags and produce spurious failures.

Verdict - Needs revision

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LTP AI Reviewer