Re: [LTP] madvise09: Reset cgroup limits before retrying test

[linuxtestproject.agent@gmail.com]

Hi Wake,

On Mon Jul 13 01:25:45 2026, Wake Liu wrote:
> madvise09: Reset cgroup limits before retrying test

> +	if (SAFE_CG_HAS(tst_cg, "memory.max"))
> +		SAFE_CG_PRINT(tst_cg, "memory.max", "max");

The test requires `.needs_cgroup_ctrls = { "memory", NULL }`, so
memory.max is guaranteed to exist when the memory controller is
available. The SAFE_CG_HAS guard is unnecessary here and creates an
inconsistency with the unconditional write to the same file later:

    SAFE_CG_PRINTF(tst_cg, "memory.max", "%d", MEM_LIMIT);

Can the guard be dropped to match the style used for the later write?

> +	if (swap_accounting_enabled && SAFE_CG_HAS(tst_cg, "memory.swap.max"))
> +		SAFE_CG_PRINT(tst_cg, "memory.swap.max", "max");

swap_accounting_enabled is already set in setup() based on
SAFE_CG_HAS(tst_cg, "memory.swap.max"), so the second SAFE_CG_HAS
call is redundant. The later write is correctly guarded with just
swap_accounting_enabled:

    if (swap_accounting_enabled) {
        SAFE_CG_PRINTF(tst_cg, "memory.swap.max", "%d", SWAP_LIMIT);

Can this be simplified to match?

Verdict - Needs revision

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