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-rw-r--r--kernel/power/tuxonice_alloc.c308
1 files changed, 0 insertions, 308 deletions
diff --git a/kernel/power/tuxonice_alloc.c b/kernel/power/tuxonice_alloc.c
deleted file mode 100644
index 1d8b1cbda..000000000
--- a/kernel/power/tuxonice_alloc.c
+++ /dev/null
@@ -1,308 +0,0 @@
-/*
- * kernel/power/tuxonice_alloc.c
- *
- * Copyright (C) 2008-2015 Nigel Cunningham (nigel at nigelcunningham com au)
- *
- * This file is released under the GPLv2.
- *
- */
-
-#include <linux/export.h>
-#include <linux/slab.h>
-#include "tuxonice_modules.h"
-#include "tuxonice_alloc.h"
-#include "tuxonice_sysfs.h"
-#include "tuxonice.h"
-
-#define TOI_ALLOC_PATHS 41
-
-static DEFINE_MUTEX(toi_alloc_mutex);
-
-static struct toi_module_ops toi_alloc_ops;
-
-static int toi_fail_num;
-
-static atomic_t toi_alloc_count[TOI_ALLOC_PATHS],
- toi_free_count[TOI_ALLOC_PATHS],
- toi_test_count[TOI_ALLOC_PATHS],
- toi_fail_count[TOI_ALLOC_PATHS];
-static int toi_cur_allocd[TOI_ALLOC_PATHS], toi_max_allocd[TOI_ALLOC_PATHS];
-static int cur_allocd, max_allocd;
-
-static char *toi_alloc_desc[TOI_ALLOC_PATHS] = {
- "", /* 0 */
- "get_io_info_struct",
- "extent",
- "extent (loading chain)",
- "userui channel",
- "userui arg", /* 5 */
- "attention list metadata",
- "extra pagedir memory metadata",
- "bdev metadata",
- "extra pagedir memory",
- "header_locations_read", /* 10 */
- "bio queue",
- "prepare_readahead",
- "i/o buffer",
- "writer buffer in bio_init",
- "checksum buffer", /* 15 */
- "compression buffer",
- "filewriter signature op",
- "set resume param alloc1",
- "set resume param alloc2",
- "debugging info buffer", /* 20 */
- "check can resume buffer",
- "write module config buffer",
- "read module config buffer",
- "write image header buffer",
- "read pageset1 buffer", /* 25 */
- "get_have_image_data buffer",
- "checksum page",
- "worker rw loop",
- "get nonconflicting page",
- "ps1 load addresses", /* 30 */
- "remove swap image",
- "swap image exists",
- "swap parse sig location",
- "sysfs kobj",
- "swap mark resume attempted buffer", /* 35 */
- "cluster member",
- "boot kernel data buffer",
- "setting swap signature",
- "block i/o bdev struct",
- "copy before write", /* 40 */
-};
-
-#define MIGHT_FAIL(FAIL_NUM, FAIL_VAL) \
- do { \
- BUG_ON(FAIL_NUM >= TOI_ALLOC_PATHS); \
- \
- if (FAIL_NUM == toi_fail_num) { \
- atomic_inc(&toi_test_count[FAIL_NUM]); \
- toi_fail_num = 0; \
- return FAIL_VAL; \
- } \
- } while (0)
-
-static void alloc_update_stats(int fail_num, void *result, int size)
-{
- if (!result) {
- atomic_inc(&toi_fail_count[fail_num]);
- return;
- }
-
- atomic_inc(&toi_alloc_count[fail_num]);
- if (unlikely(test_action_state(TOI_GET_MAX_MEM_ALLOCD))) {
- mutex_lock(&toi_alloc_mutex);
- toi_cur_allocd[fail_num]++;
- cur_allocd += size;
- if (unlikely(cur_allocd > max_allocd)) {
- int i;
-
- for (i = 0; i < TOI_ALLOC_PATHS; i++)
- toi_max_allocd[i] = toi_cur_allocd[i];
- max_allocd = cur_allocd;
- }
- mutex_unlock(&toi_alloc_mutex);
- }
-}
-
-static void free_update_stats(int fail_num, int size)
-{
- BUG_ON(fail_num >= TOI_ALLOC_PATHS);
- atomic_inc(&toi_free_count[fail_num]);
- if (unlikely(atomic_read(&toi_free_count[fail_num]) >
- atomic_read(&toi_alloc_count[fail_num])))
- dump_stack();
- if (unlikely(test_action_state(TOI_GET_MAX_MEM_ALLOCD))) {
- mutex_lock(&toi_alloc_mutex);
- cur_allocd -= size;
- toi_cur_allocd[fail_num]--;
- mutex_unlock(&toi_alloc_mutex);
- }
-}
-
-void *toi_kzalloc(int fail_num, size_t size, gfp_t flags)
-{
- void *result;
-
- if (toi_alloc_ops.enabled)
- MIGHT_FAIL(fail_num, NULL);
- result = kzalloc(size, flags);
- if (toi_alloc_ops.enabled)
- alloc_update_stats(fail_num, result, size);
- if (fail_num == toi_trace_allocs)
- dump_stack();
- return result;
-}
-
-unsigned long toi_get_free_pages(int fail_num, gfp_t mask,
- unsigned int order)
-{
- unsigned long result;
-
- mask |= ___GFP_TOI_NOTRACK;
- if (toi_alloc_ops.enabled)
- MIGHT_FAIL(fail_num, 0);
- result = __get_free_pages(mask, order);
- if (toi_alloc_ops.enabled)
- alloc_update_stats(fail_num, (void *) result,
- PAGE_SIZE << order);
- if (fail_num == toi_trace_allocs)
- dump_stack();
- return result;
-}
-
-struct page *toi_alloc_page(int fail_num, gfp_t mask)
-{
- struct page *result;
-
- if (toi_alloc_ops.enabled)
- MIGHT_FAIL(fail_num, NULL);
- mask |= ___GFP_TOI_NOTRACK;
- result = alloc_page(mask);
- if (toi_alloc_ops.enabled)
- alloc_update_stats(fail_num, (void *) result, PAGE_SIZE);
- if (fail_num == toi_trace_allocs)
- dump_stack();
- return result;
-}
-
-unsigned long toi_get_zeroed_page(int fail_num, gfp_t mask)
-{
- unsigned long result;
-
- if (toi_alloc_ops.enabled)
- MIGHT_FAIL(fail_num, 0);
- mask |= ___GFP_TOI_NOTRACK;
- result = get_zeroed_page(mask);
- if (toi_alloc_ops.enabled)
- alloc_update_stats(fail_num, (void *) result, PAGE_SIZE);
- if (fail_num == toi_trace_allocs)
- dump_stack();
- return result;
-}
-
-void toi_kfree(int fail_num, const void *arg, int size)
-{
- if (arg && toi_alloc_ops.enabled)
- free_update_stats(fail_num, size);
-
- if (fail_num == toi_trace_allocs)
- dump_stack();
- kfree(arg);
-}
-
-void toi_free_page(int fail_num, unsigned long virt)
-{
- if (virt && toi_alloc_ops.enabled)
- free_update_stats(fail_num, PAGE_SIZE);
-
- if (fail_num == toi_trace_allocs)
- dump_stack();
- free_page(virt);
-}
-
-void toi__free_page(int fail_num, struct page *page)
-{
- if (page && toi_alloc_ops.enabled)
- free_update_stats(fail_num, PAGE_SIZE);
-
- if (fail_num == toi_trace_allocs)
- dump_stack();
- __free_page(page);
-}
-
-void toi_free_pages(int fail_num, struct page *page, int order)
-{
- if (page && toi_alloc_ops.enabled)
- free_update_stats(fail_num, PAGE_SIZE << order);
-
- if (fail_num == toi_trace_allocs)
- dump_stack();
- __free_pages(page, order);
-}
-
-void toi_alloc_print_debug_stats(void)
-{
- int i, header_done = 0;
-
- if (!toi_alloc_ops.enabled)
- return;
-
- for (i = 0; i < TOI_ALLOC_PATHS; i++)
- if (atomic_read(&toi_alloc_count[i]) !=
- atomic_read(&toi_free_count[i])) {
- if (!header_done) {
- printk(KERN_INFO "Idx Allocs Frees Tests "
- " Fails Max Description\n");
- header_done = 1;
- }
-
- printk(KERN_INFO "%3d %7d %7d %7d %7d %7d %s\n", i,
- atomic_read(&toi_alloc_count[i]),
- atomic_read(&toi_free_count[i]),
- atomic_read(&toi_test_count[i]),
- atomic_read(&toi_fail_count[i]),
- toi_max_allocd[i],
- toi_alloc_desc[i]);
- }
-}
-
-static int toi_alloc_initialise(int starting_cycle)
-{
- int i;
-
- if (!starting_cycle)
- return 0;
-
- if (toi_trace_allocs)
- dump_stack();
-
- for (i = 0; i < TOI_ALLOC_PATHS; i++) {
- atomic_set(&toi_alloc_count[i], 0);
- atomic_set(&toi_free_count[i], 0);
- atomic_set(&toi_test_count[i], 0);
- atomic_set(&toi_fail_count[i], 0);
- toi_cur_allocd[i] = 0;
- toi_max_allocd[i] = 0;
- };
-
- max_allocd = 0;
- cur_allocd = 0;
- return 0;
-}
-
-static struct toi_sysfs_data sysfs_params[] = {
- SYSFS_INT("failure_test", SYSFS_RW, &toi_fail_num, 0, 99, 0, NULL),
- SYSFS_INT("trace", SYSFS_RW, &toi_trace_allocs, 0, TOI_ALLOC_PATHS, 0,
- NULL),
- SYSFS_BIT("find_max_mem_allocated", SYSFS_RW, &toi_bkd.toi_action,
- TOI_GET_MAX_MEM_ALLOCD, 0),
- SYSFS_INT("enabled", SYSFS_RW, &toi_alloc_ops.enabled, 0, 1, 0,
- NULL)
-};
-
-static struct toi_module_ops toi_alloc_ops = {
- .type = MISC_HIDDEN_MODULE,
- .name = "allocation debugging",
- .directory = "alloc",
- .module = THIS_MODULE,
- .early = 1,
- .initialise = toi_alloc_initialise,
-
- .sysfs_data = sysfs_params,
- .num_sysfs_entries = sizeof(sysfs_params) /
- sizeof(struct toi_sysfs_data),
-};
-
-int toi_alloc_init(void)
-{
- int result = toi_register_module(&toi_alloc_ops);
- return result;
-}
-
-void toi_alloc_exit(void)
-{
- toi_unregister_module(&toi_alloc_ops);
-}
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