From 670027c507e99521d416994a18a498def9ef2ea3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Fabian=20Silva=20Delgado?= Date: Sat, 22 Oct 2016 19:31:08 -0300 Subject: Linux-libre 4.8.3-gnu --- kernel/power/tuxonice_alloc.c | 308 ------------------------------------------ 1 file changed, 308 deletions(-) delete mode 100644 kernel/power/tuxonice_alloc.c (limited to 'kernel/power/tuxonice_alloc.c') 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 -#include -#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); -} -- cgit v1.2.3