| brd.c (754451342fc5954061ede74b0a8485ec4a4c6eaa) | brd.c (5657a819a8d94426c76be04dcedfad0f64cfff00) |
|---|---|
| 1/* 2 * Ram backed block device driver. 3 * 4 * Copyright (C) 2007 Nick Piggin 5 * Copyright (C) 2007 Novell Inc. 6 * 7 * Parts derived from drivers/block/rd.c, and drivers/block/loop.c, copyright 8 * of their respective owners. --- 317 unchanged lines hidden (view full) --- 326 .owner = THIS_MODULE, 327 .rw_page = brd_rw_page, 328}; 329 330/* 331 * And now the modules code and kernel interface. 332 */ 333static int rd_nr = CONFIG_BLK_DEV_RAM_COUNT; | 1/* 2 * Ram backed block device driver. 3 * 4 * Copyright (C) 2007 Nick Piggin 5 * Copyright (C) 2007 Novell Inc. 6 * 7 * Parts derived from drivers/block/rd.c, and drivers/block/loop.c, copyright 8 * of their respective owners. --- 317 unchanged lines hidden (view full) --- 326 .owner = THIS_MODULE, 327 .rw_page = brd_rw_page, 328}; 329 330/* 331 * And now the modules code and kernel interface. 332 */ 333static int rd_nr = CONFIG_BLK_DEV_RAM_COUNT; |
| 334module_param(rd_nr, int, S_IRUGO); | 334module_param(rd_nr, int, 0444); |
| 335MODULE_PARM_DESC(rd_nr, "Maximum number of brd devices"); 336 337unsigned long rd_size = CONFIG_BLK_DEV_RAM_SIZE; | 335MODULE_PARM_DESC(rd_nr, "Maximum number of brd devices"); 336 337unsigned long rd_size = CONFIG_BLK_DEV_RAM_SIZE; |
| 338module_param(rd_size, ulong, S_IRUGO); | 338module_param(rd_size, ulong, 0444); |
| 339MODULE_PARM_DESC(rd_size, "Size of each RAM disk in kbytes."); 340 341static int max_part = 1; | 339MODULE_PARM_DESC(rd_size, "Size of each RAM disk in kbytes."); 340 341static int max_part = 1; |
| 342module_param(max_part, int, S_IRUGO); | 342module_param(max_part, int, 0444); |
| 343MODULE_PARM_DESC(max_part, "Num Minors to reserve between devices"); 344 345MODULE_LICENSE("GPL"); 346MODULE_ALIAS_BLOCKDEV_MAJOR(RAMDISK_MAJOR); 347MODULE_ALIAS("rd"); 348 349#ifndef MODULE 350/* Legacy boot options - nonmodular */ --- 46 unchanged lines hidden (view full) --- 397 disk->fops = &brd_fops; 398 disk->private_data = brd; 399 disk->queue = brd->brd_queue; 400 disk->flags = GENHD_FL_EXT_DEVT; 401 sprintf(disk->disk_name, "ram%d", i); 402 set_capacity(disk, rd_size * 2); 403 disk->queue->backing_dev_info->capabilities |= BDI_CAP_SYNCHRONOUS_IO; 404 | 343MODULE_PARM_DESC(max_part, "Num Minors to reserve between devices"); 344 345MODULE_LICENSE("GPL"); 346MODULE_ALIAS_BLOCKDEV_MAJOR(RAMDISK_MAJOR); 347MODULE_ALIAS("rd"); 348 349#ifndef MODULE 350/* Legacy boot options - nonmodular */ --- 46 unchanged lines hidden (view full) --- 397 disk->fops = &brd_fops; 398 disk->private_data = brd; 399 disk->queue = brd->brd_queue; 400 disk->flags = GENHD_FL_EXT_DEVT; 401 sprintf(disk->disk_name, "ram%d", i); 402 set_capacity(disk, rd_size * 2); 403 disk->queue->backing_dev_info->capabilities |= BDI_CAP_SYNCHRONOUS_IO; 404 |
| 405 /* Tell the block layer that this is not a rotational device */ 406 blk_queue_flag_set(QUEUE_FLAG_NONROT, disk->queue); 407 blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, disk->queue); 408 |
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| 405 return brd; 406 407out_free_queue: 408 blk_cleanup_queue(brd->brd_queue); 409out_free_dev: 410 kfree(brd); 411out: 412 return NULL; --- 125 unchanged lines hidden --- | 409 return brd; 410 411out_free_queue: 412 blk_cleanup_queue(brd->brd_queue); 413out_free_dev: 414 kfree(brd); 415out: 416 return NULL; --- 125 unchanged lines hidden --- |