| util.c (2fc2991175bf77395e6b15fe6b2304d3bf72da40) | util.c (1e5d533142c1c178a31d4cc81837eb078f9269bc) |
|---|---|
| 1/* 2 * linux/ipc/util.c 3 * Copyright (C) 1992 Krishna Balasubramanian 4 * 5 * Sep 1997 - Call suser() last after "normal" permission checks so we 6 * get BSD style process accounting right. 7 * Occurs in several places in the IPC code. 8 * Chris Evans, <chris@ferret.lmh.ox.ac.uk> --- 396 unchanged lines hidden (view full) --- 405} 406 407void ipc_rcu_getref(void *ptr) 408{ 409 container_of(ptr, struct ipc_rcu_hdr, data)->refcount++; 410} 411 412/** | 1/* 2 * linux/ipc/util.c 3 * Copyright (C) 1992 Krishna Balasubramanian 4 * 5 * Sep 1997 - Call suser() last after "normal" permission checks so we 6 * get BSD style process accounting right. 7 * Occurs in several places in the IPC code. 8 * Chris Evans, <chris@ferret.lmh.ox.ac.uk> --- 396 unchanged lines hidden (view full) --- 405} 406 407void ipc_rcu_getref(void *ptr) 408{ 409 container_of(ptr, struct ipc_rcu_hdr, data)->refcount++; 410} 411 412/** |
| 413 * ipc_schedule_free - free ipc + rcu space | 413 * ipc_schedule_free - free ipc + rcu space 414 * @head: RCU callback structure for queued work |
| 414 * 415 * Since RCU callback function is called in bh, 416 * we need to defer the vfree to schedule_work 417 */ 418static void ipc_schedule_free(struct rcu_head *head) 419{ 420 struct ipc_rcu_grace *grace = 421 container_of(head, struct ipc_rcu_grace, rcu); 422 struct ipc_rcu_sched *sched = 423 container_of(&(grace->data[0]), struct ipc_rcu_sched, data[0]); 424 425 INIT_WORK(&sched->work, vfree, sched); 426 schedule_work(&sched->work); 427} 428 429/** | 415 * 416 * Since RCU callback function is called in bh, 417 * we need to defer the vfree to schedule_work 418 */ 419static void ipc_schedule_free(struct rcu_head *head) 420{ 421 struct ipc_rcu_grace *grace = 422 container_of(head, struct ipc_rcu_grace, rcu); 423 struct ipc_rcu_sched *sched = 424 container_of(&(grace->data[0]), struct ipc_rcu_sched, data[0]); 425 426 INIT_WORK(&sched->work, vfree, sched); 427 schedule_work(&sched->work); 428} 429 430/** |
| 430 * ipc_immediate_free - free ipc + rcu space | 431 * ipc_immediate_free - free ipc + rcu space 432 * @head: RCU callback structure that contains pointer to be freed |
| 431 * | 433 * |
| 432 * Free from the RCU callback context 433 * | 434 * Free from the RCU callback context |
| 434 */ 435static void ipc_immediate_free(struct rcu_head *head) 436{ 437 struct ipc_rcu_grace *free = 438 container_of(head, struct ipc_rcu_grace, rcu); 439 kfree(free); 440} 441 --- 295 unchanged lines hidden --- | 435 */ 436static void ipc_immediate_free(struct rcu_head *head) 437{ 438 struct ipc_rcu_grace *free = 439 container_of(head, struct ipc_rcu_grace, rcu); 440 kfree(free); 441} 442 --- 295 unchanged lines hidden --- |