diff options
| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2023-08-08 11:33:59 +0800 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-08-21 13:37:47 -0700 |
| commit | 3f32c49ed6f15c8412a8abc93a92c4b37e6c4592 (patch) | |
| tree | 0b36299811573eafb0382ee409612ff9e737da23 /mm/memtest.c | |
| parent | daee07bfba3340b07edcf9ae92044398e8a964db (diff) | |
mm: memtest: convert to memtest_report_meminfo()
It is better to not expose too many internal variables of memtest,
add a helper memtest_report_meminfo() to show memtest results.
Link: https://lkml.kernel.org/r/20230808033359.174986-1-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Tomas Mudrunka <tomas.mudrunka@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memtest.c')
| -rw-r--r-- | mm/memtest.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/mm/memtest.c b/mm/memtest.c index 57149dfee438..32f3e9dda837 100644 --- a/mm/memtest.c +++ b/mm/memtest.c @@ -3,9 +3,10 @@ #include <linux/types.h> #include <linux/init.h> #include <linux/memblock.h> +#include <linux/seq_file.h> -bool early_memtest_done; -phys_addr_t early_memtest_bad_size; +static bool early_memtest_done; +static phys_addr_t early_memtest_bad_size; static u64 patterns[] __initdata = { /* The first entry has to be 0 to leave memtest with zeroed memory */ @@ -117,3 +118,20 @@ void __init early_memtest(phys_addr_t start, phys_addr_t end) do_one_pass(patterns[idx], start, end); } } + +void memtest_report_meminfo(struct seq_file *m) +{ + unsigned long early_memtest_bad_size_kb; + + if (!IS_ENABLED(CONFIG_PROC_FS)) + return; + + if (!early_memtest_done) + return; + + early_memtest_bad_size_kb = early_memtest_bad_size >> 10; + if (early_memtest_bad_size && !early_memtest_bad_size_kb) + early_memtest_bad_size_kb = 1; + /* When 0 is reported, it means there actually was a successful test */ + seq_printf(m, "EarlyMemtestBad: %5lu kB\n", early_memtest_bad_size_kb); +} |