forked from Minki/linux
5ea22086ed
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. This refactors the discover_timer to remove the needless locking and state machine used for synchronizing timer death. Using del_timer_sync() will already do the right thing. Cc: Jens Axboe <axboe@kernel.dk> Cc: "Ed L. Cashin" <ed.cashin@acm.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Kees Cook <keescook@chromium.org>
88 lines
1.6 KiB
C
88 lines
1.6 KiB
C
/* Copyright (c) 2012 Coraid, Inc. See COPYING for GPL terms. */
|
|
/*
|
|
* aoemain.c
|
|
* Module initialization routines, discover timer
|
|
*/
|
|
|
|
#include <linux/hdreg.h>
|
|
#include <linux/blkdev.h>
|
|
#include <linux/module.h>
|
|
#include <linux/skbuff.h>
|
|
#include "aoe.h"
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Sam Hopkins <sah@coraid.com>");
|
|
MODULE_DESCRIPTION("AoE block/char driver for 2.6.2 and newer 2.6 kernels");
|
|
MODULE_VERSION(VERSION);
|
|
|
|
static struct timer_list timer;
|
|
|
|
static void discover_timer(struct timer_list *t)
|
|
{
|
|
mod_timer(t, jiffies + HZ * 60); /* one minute */
|
|
|
|
aoecmd_cfg(0xffff, 0xff);
|
|
}
|
|
|
|
static void
|
|
aoe_exit(void)
|
|
{
|
|
del_timer_sync(&timer);
|
|
|
|
aoenet_exit();
|
|
unregister_blkdev(AOE_MAJOR, DEVICE_NAME);
|
|
aoecmd_exit();
|
|
aoechr_exit();
|
|
aoedev_exit();
|
|
aoeblk_exit(); /* free cache after de-allocating bufs */
|
|
}
|
|
|
|
static int __init
|
|
aoe_init(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = aoedev_init();
|
|
if (ret)
|
|
return ret;
|
|
ret = aoechr_init();
|
|
if (ret)
|
|
goto chr_fail;
|
|
ret = aoeblk_init();
|
|
if (ret)
|
|
goto blk_fail;
|
|
ret = aoenet_init();
|
|
if (ret)
|
|
goto net_fail;
|
|
ret = aoecmd_init();
|
|
if (ret)
|
|
goto cmd_fail;
|
|
ret = register_blkdev(AOE_MAJOR, DEVICE_NAME);
|
|
if (ret < 0) {
|
|
printk(KERN_ERR "aoe: can't register major\n");
|
|
goto blkreg_fail;
|
|
}
|
|
printk(KERN_INFO "aoe: AoE v%s initialised.\n", VERSION);
|
|
|
|
timer_setup(&timer, discover_timer, 0);
|
|
discover_timer(&timer);
|
|
return 0;
|
|
blkreg_fail:
|
|
aoecmd_exit();
|
|
cmd_fail:
|
|
aoenet_exit();
|
|
net_fail:
|
|
aoeblk_exit();
|
|
blk_fail:
|
|
aoechr_exit();
|
|
chr_fail:
|
|
aoedev_exit();
|
|
|
|
printk(KERN_INFO "aoe: initialisation failure.\n");
|
|
return ret;
|
|
}
|
|
|
|
module_init(aoe_init);
|
|
module_exit(aoe_exit);
|
|
|