Subject: [merged] revert-selftest-add-simple-test-for-soft-dirty-bit.patch removed from -mm tree To: akpm@xxxxxxxxxxxxxxxxxxxx,xemul@xxxxxxxxxxxxx,mm-commits@xxxxxxxxxxxxxxx From: akpm@xxxxxxxxxxxxxxxxxxxx Date: Tue, 28 May 2013 12:37:01 -0700 The patch titled Subject: revert "selftest: add simple test for soft-dirty bit" has been removed from the -mm tree. Its filename was revert-selftest-add-simple-test-for-soft-dirty-bit.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: revert "selftest: add simple test for soft-dirty bit" Revert 58c7be84fec8 ("selftest: add simple test for soft-dirty bit"). This is the self test for Pavel's pagemap2 patches which didn't actually get merged. Reported-by: Pavel Emelyanov <xemul@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/Makefile | 1 tools/testing/selftests/soft-dirty/Makefile | 10 - tools/testing/selftests/soft-dirty/soft-dirty.c | 114 -------------- 3 files changed, 125 deletions(-) diff -puN tools/testing/selftests/Makefile~revert-selftest-add-simple-test-for-soft-dirty-bit tools/testing/selftests/Makefile --- a/tools/testing/selftests/Makefile~revert-selftest-add-simple-test-for-soft-dirty-bit +++ a/tools/testing/selftests/Makefile @@ -6,7 +6,6 @@ TARGETS += memory-hotplug TARGETS += mqueue TARGETS += net TARGETS += ptrace -TARGETS += soft-dirty TARGETS += vm all: diff -puN tools/testing/selftests/soft-dirty/Makefile~revert-selftest-add-simple-test-for-soft-dirty-bit /dev/null --- a/tools/testing/selftests/soft-dirty/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -CFLAGS += -iquote../../../../include/uapi -Wall -soft-dirty: soft-dirty.c - -all: soft-dirty - -clean: - rm -f soft-dirty - -run_tests: all - @./soft-dirty || echo "soft-dirty selftests: [FAIL]" diff -puN tools/testing/selftests/soft-dirty/soft-dirty.c~revert-selftest-add-simple-test-for-soft-dirty-bit /dev/null --- a/tools/testing/selftests/soft-dirty/soft-dirty.c +++ /dev/null @@ -1,114 +0,0 @@ -#include <stdlib.h> -#include <stdio.h> -#include <sys/mman.h> -#include <unistd.h> -#include <fcntl.h> -#include <sys/types.h> - -typedef unsigned long long u64; - -#define PME_PRESENT (1ULL << 63) -#define PME_SOFT_DIRTY (1Ull << 55) - -#define PAGES_TO_TEST 3 -#ifndef PAGE_SIZE -#define PAGE_SIZE 4096 -#endif - -static void get_pagemap2(char *mem, u64 *map) -{ - int fd; - - fd = open("/proc/self/pagemap2", O_RDONLY); - if (fd < 0) { - perror("Can't open pagemap2"); - exit(1); - } - - lseek(fd, (unsigned long)mem / PAGE_SIZE * sizeof(u64), SEEK_SET); - read(fd, map, sizeof(u64) * PAGES_TO_TEST); - close(fd); -} - -static inline char map_p(u64 map) -{ - return map & PME_PRESENT ? 'p' : '-'; -} - -static inline char map_sd(u64 map) -{ - return map & PME_SOFT_DIRTY ? 'd' : '-'; -} - -static int check_pte(int step, int page, u64 *map, u64 want) -{ - if ((map[page] & want) != want) { - printf("Step %d Page %d has %c%c, want %c%c\n", - step, page, - map_p(map[page]), map_sd(map[page]), - map_p(want), map_sd(want)); - return 1; - } - - return 0; -} - -static void clear_refs(void) -{ - int fd; - char *v = "4"; - - fd = open("/proc/self/clear_refs", O_WRONLY); - if (write(fd, v, 3) < 3) { - perror("Can't clear soft-dirty bit"); - exit(1); - } - close(fd); -} - -int main(void) -{ - char *mem, x; - u64 map[PAGES_TO_TEST]; - - mem = mmap(NULL, PAGES_TO_TEST * PAGE_SIZE, - PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, 0, 0); - - x = mem[0]; - mem[2 * PAGE_SIZE] = 'c'; - get_pagemap2(mem, map); - - if (check_pte(1, 0, map, PME_PRESENT)) - return 1; - if (check_pte(1, 1, map, 0)) - return 1; - if (check_pte(1, 2, map, PME_PRESENT | PME_SOFT_DIRTY)) - return 1; - - clear_refs(); - get_pagemap2(mem, map); - - if (check_pte(2, 0, map, PME_PRESENT)) - return 1; - if (check_pte(2, 1, map, 0)) - return 1; - if (check_pte(2, 2, map, PME_PRESENT)) - return 1; - - mem[0] = 'a'; - mem[PAGE_SIZE] = 'b'; - x = mem[2 * PAGE_SIZE]; - get_pagemap2(mem, map); - - if (check_pte(3, 0, map, PME_PRESENT | PME_SOFT_DIRTY)) - return 1; - if (check_pte(3, 1, map, PME_PRESENT | PME_SOFT_DIRTY)) - return 1; - if (check_pte(3, 2, map, PME_PRESENT)) - return 1; - - (void)x; /* gcc warn */ - - printf("PASS\n"); - return 0; -} _ Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are linux-next.patch arch-alpha-kernel-systblss-remove-debug-check.patch i-need-old-gcc.patch kmsg-honor-dmesg_restrict-sysctl-on-dev-kmsg-fix.patch sound-soc-codecs-si476xc-dont-use-0bnnn.patch drivers-iommu-msm_iommu_devc-fix-leak-and-clean-up-error-paths-fix.patch posix-timers-correctly-get-dying-task-time-sample-in-posix_cpu_timer_schedule.patch mm.patch clear_refs-sanitize-accepted-commands-declaration.patch mm-remove-compressed-copy-from-zram-in-memory-fix.patch memory_hotplug-use-pgdat_resize_lock-in-__offline_pages-fix.patch include-linux-mmh-add-page_aligned-helper.patch vmcore-allocate-buffer-for-elf-headers-on-page-size-alignment-fix.patch vmalloc-introduce-remap_vmalloc_range_partial-fix.patch vmcore-allocate-elf-note-segment-in-the-2nd-kernel-vmalloc-memory-fix.patch vmcore-allow-user-process-to-remap-elf-note-segment-buffer-fix.patch vmcore-support-mmap-on-proc-vmcore-fix.patch include-linux-mmzoneh-cleanups.patch include-linux-mmzoneh-cleanups-fix.patch drop_caches-add-some-documentation-and-info-messsge.patch memcg-debugging-facility-to-access-dangling-memcgs-fix.patch dump_stack-serialize-the-output-from-dump_stack-fix.patch panic-add-cpu-pid-to-warn_slowpath_common-in-warning-printks-fix.patch lib-bitmapc-speed-up-bitmap_find_free_region-fix.patch rbtree-remove-unneeded-include-fix.patch checkpatch-warn-when-using-gccs-binary-constant-extension.patch binfmt_elfc-use-get_random_int-to-fix-entropy-depleting.patch fat-additions-to-support-fat_fallocate-fix.patch idr-print-a-stack-dump-after-ida_remove-warning-fix.patch shm-fix-null-pointer-deref-when-userspace-specifies-invalid-hugepage-size-fix.patch partitions-add-aix-lvm-partition-support-files-checkpatch-fixes.patch drivers-w1-slaves-w1_ds2408c-add-magic-sequence-to-disable-p0-test-mode-fix.patch lib-add-lz4-compressor-module-fix.patch crypto-add-lz4-cryptographic-api-fix.patch debugging-keep-track-of-page-owners-fix-2-fix.patch debugging-keep-track-of-page-owners-fix-2-fix-fix-fix.patch journal_add_journal_head-debug.patch kernel-forkc-export-kernel_thread-to-modules.patch mutex-subsystem-synchro-test-module.patch slab-leaks3-default-y.patch put_bh-debug.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html