[Crash-utility] [PATCH 1/2] Fix "kmem -i" option to display swap usage on Linux 6.18 and later

From: Kazuhito Hagio <k-hagio-ab(a)nec.com&gt; Kernel commit 8578e0c00dcf ("mm, swap: use the swap table to track the swap count"), which is contained in Linux 6.18 and later kernels, removed swapper_spaces symbol. As a result, "kmem -i" skips swap usage output because the existing check only looks for swapper_space/swapper_spaces. Also check for the swap_info symbol so dump_swap_info() is called on newer kernels as well. Signed-off-by: Kazuhito Hagko <k-hagio-ab(a)nec.com&gt; --- memory.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/memory.c b/memory.c index 38c6a139e984..15946c58eaf2 100644 --- a/memory.c +++ b/memory.c @@ -8871,7 +8871,8 @@ dump_kmeminfo(struct meminfo *mi) * get swap data from dump_swap_info(). */ fprintf(fp, "\n"); - if (symbol_exists("swapper_space") || symbol_exists("swapper_spaces")) { + if (symbol_exists("swap_info") || + symbol_exists("swapper_space") || symbol_exists("swapper_spaces")) { if (dump_swap_info(RETURN_ON_ERROR, &totalswap_pages, &totalused_pages)) { fprintf(fp, "%13s %7ld %11s ----\n", -- 2.31.1