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author | 2022-02-05 00:58:25 -0500 | |
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committer | 2022-02-05 00:58:25 -0500 | |
commit | 7e6a6b400db8048bd1c06e497e338388413cf5bc (patch) | |
tree | 794f9fcdc7a1bfb9a2812e90fc76809d810203b2 /lib/test_bitmap.c | |
parent | KVM: x86: Use ERR_PTR_USR() to return -EFAULT as a __user pointer (diff) | |
parent | KVM: arm64: Workaround Cortex-A510's single-step and PAC trap errata (diff) | |
download | linux-dev-7e6a6b400db8048bd1c06e497e338388413cf5bc.tar.xz linux-dev-7e6a6b400db8048bd1c06e497e338388413cf5bc.zip |
Merge tag 'kvmarm-fixes-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 fixes for 5.17, take #2
- A couple of fixes when handling an exception while a SError has been
delivered
- Workaround for Cortex-A510's single-step[ erratum
Diffstat (limited to 'lib/test_bitmap.c')
-rw-r--r-- | lib/test_bitmap.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c index d33fa5a61b95..0c82f07f74fc 100644 --- a/lib/test_bitmap.c +++ b/lib/test_bitmap.c @@ -446,6 +446,42 @@ static void __init test_bitmap_parselist(void) } } +static void __init test_bitmap_printlist(void) +{ + unsigned long *bmap = kmalloc(PAGE_SIZE, GFP_KERNEL); + char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL); + char expected[256]; + int ret, slen; + ktime_t time; + + if (!buf || !bmap) + goto out; + + memset(bmap, -1, PAGE_SIZE); + slen = snprintf(expected, 256, "0-%ld", PAGE_SIZE * 8 - 1); + if (slen < 0) + goto out; + + time = ktime_get(); + ret = bitmap_print_to_pagebuf(true, buf, bmap, PAGE_SIZE * 8); + time = ktime_get() - time; + + if (ret != slen + 1) { + pr_err("bitmap_print_to_pagebuf: result is %d, expected %d\n", ret, slen); + goto out; + } + + if (strncmp(buf, expected, slen)) { + pr_err("bitmap_print_to_pagebuf: result is %s, expected %s\n", buf, expected); + goto out; + } + + pr_err("bitmap_print_to_pagebuf: input is '%s', Time: %llu\n", buf, time); +out: + kfree(buf); + kfree(bmap); +} + static const unsigned long parse_test[] __initconst = { BITMAP_FROM_U64(0), BITMAP_FROM_U64(1), @@ -818,6 +854,7 @@ static void __init selftest(void) test_bitmap_arr32(); test_bitmap_parse(); test_bitmap_parselist(); + test_bitmap_printlist(); test_mem_optimisations(); test_for_each_set_clump8(); test_bitmap_cut(); |