cregit-Linux how code gets into the kernel

Release 4.9 lib/list_debug.c

Directory: lib
/*
 * Copyright 2006, Red Hat, Inc., Dave Jones
 * Released under the General Public License (GPL).
 *
 * This file contains the linked list implementations for
 * DEBUG_LIST.
 */

#include <linux/export.h>
#include <linux/list.h>
#include <linux/bug.h>
#include <linux/kernel.h>
#include <linux/rculist.h>

/*
 * Insert a new entry between two known consecutive entries.
 *
 * This is only for internal list manipulation where we know
 * the prev/next entries already!
 */


void __list_add(struct list_head *new, struct list_head *prev, struct list_head *next) { WARN(next->prev != prev, "list_add corruption. next->prev should be " "prev (%p), but was %p. (next=%p).\n", prev, next->prev, next); WARN(prev->next != next, "list_add corruption. prev->next should be " "next (%p), but was %p. (prev=%p).\n", next, prev->next, prev); WARN(new == prev || new == next, "list_add double add: new=%p, prev=%p, next=%p.\n", new, prev, next); next->prev = new; new->next = next; new->prev = prev; WRITE_ONCE(prev->next, new); }

Contributors

PersonTokensPropCommitsCommitProp
dave jonesdave jones8378.30%360.00%
chris metcalfchris metcalf1917.92%120.00%
paul e. mckenneypaul e. mckenney43.77%120.00%
Total106100.00%5100.00%

EXPORT_SYMBOL(__list_add);
void __list_del_entry(struct list_head *entry) { struct list_head *prev, *next; prev = entry->prev; next = entry->next; if (WARN(next == LIST_POISON1, "list_del corruption, %p->next is LIST_POISON1 (%p)\n", entry, LIST_POISON1) || WARN(prev == LIST_POISON2, "list_del corruption, %p->prev is LIST_POISON2 (%p)\n", entry, LIST_POISON2) || WARN(prev->next != entry, "list_del corruption. prev->next should be %p, " "but was %p\n", entry, prev->next) || WARN(next->prev != entry, "list_del corruption. next->prev should be %p, " "but was %p\n", entry, next->prev)) return; __list_del(prev, next); }

Contributors

PersonTokensPropCommitsCommitProp
dave jonesdave jones4544.12%240.00%
linus torvaldslinus torvalds3534.31%120.00%
baruch siachbaruch siach1817.65%120.00%
manfred spraulmanfred spraul43.92%120.00%
Total102100.00%5100.00%

EXPORT_SYMBOL(__list_del_entry); /** * list_del - deletes entry from list. * @entry: the element to delete from the list. * Note: list_empty on entry does not return true after this, the entry is * in an undefined state. */
void list_del(struct list_head *entry) { __list_del_entry(entry); entry->next = LIST_POISON1; entry->prev = LIST_POISON2; }

Contributors

PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds1451.85%150.00%
dave jonesdave jones1348.15%150.00%
Total27100.00%2100.00%

EXPORT_SYMBOL(list_del); /* * RCU variants. */
void __list_add_rcu(struct list_head *new, struct list_head *prev, struct list_head *next) { WARN(next->prev != prev, "list_add_rcu corruption. next->prev should be prev (%p), but was %p. (next=%p).\n", prev, next->prev, next); WARN(prev->next != next, "list_add_rcu corruption. prev->next should be next (%p), but was %p. (prev=%p).\n", next, prev->next, prev); new->next = next; new->prev = prev; rcu_assign_pointer(list_next_rcu(prev), new); next->prev = new; }

Contributors

PersonTokensPropCommitsCommitProp
dave jonesdave jones8497.67%150.00%
paul e. mckenneypaul e. mckenney22.33%150.00%
Total86100.00%2100.00%

EXPORT_SYMBOL(__list_add_rcu);

Overall Contributors

PersonTokensPropCommitsCommitProp
dave jonesdave jones25169.72%430.77%
linus torvaldslinus torvalds5515.28%17.69%
chris metcalfchris metcalf195.28%17.69%
baruch siachbaruch siach185.00%17.69%
paul gortmakerpaul gortmaker71.94%323.08%
paul e. mckenneypaul e. mckenney61.67%215.38%
manfred spraulmanfred spraul41.11%17.69%
Total360100.00%13100.00%
Directory: lib