| ctl_backend_block.c (271309) | ctl_backend_block.c (271794) |
|---|---|
| 1/*- 2 * Copyright (c) 2003 Silicon Graphics International Corp. 3 * Copyright (c) 2009-2011 Spectra Logic Corporation 4 * Copyright (c) 2012 The FreeBSD Foundation 5 * All rights reserved. 6 * 7 * Portions of this software were developed by Edward Tomasz Napierala 8 * under sponsorship from the FreeBSD Foundation. --- 26 unchanged lines hidden (view full) --- 35 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_backend_block.c#5 $ 36 */ 37/* 38 * CAM Target Layer driver backend for block devices. 39 * 40 * Author: Ken Merry <ken@FreeBSD.org> 41 */ 42#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2003 Silicon Graphics International Corp. 3 * Copyright (c) 2009-2011 Spectra Logic Corporation 4 * Copyright (c) 2012 The FreeBSD Foundation 5 * All rights reserved. 6 * 7 * Portions of this software were developed by Edward Tomasz Napierala 8 * under sponsorship from the FreeBSD Foundation. --- 26 unchanged lines hidden (view full) --- 35 * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_backend_block.c#5 $ 36 */ 37/* 38 * CAM Target Layer driver backend for block devices. 39 * 40 * Author: Ken Merry <ken@FreeBSD.org> 41 */ 42#include <sys/cdefs.h> |
| 43__FBSDID("$FreeBSD: head/sys/cam/ctl/ctl_backend_block.c 271309 2014-09-09 11:38:29Z mav $"); | 43__FBSDID("$FreeBSD: head/sys/cam/ctl/ctl_backend_block.c 271794 2014-09-18 17:25:20Z mav $"); |
| 44 45#include <sys/param.h> 46#include <sys/systm.h> 47#include <sys/kernel.h> 48#include <sys/types.h> 49#include <sys/kthread.h> 50#include <sys/bio.h> 51#include <sys/fcntl.h> --- 2221 unchanged lines hidden (view full) --- 2273 int error; 2274 struct ctl_lun_modify_params *params; 2275 2276 params = &req->reqdata.modify; 2277 2278 if (params->lun_size_bytes != 0) { 2279 be_lun->size_bytes = params->lun_size_bytes; 2280 } else { | 44 45#include <sys/param.h> 46#include <sys/systm.h> 47#include <sys/kernel.h> 48#include <sys/types.h> 49#include <sys/kthread.h> 50#include <sys/bio.h> 51#include <sys/fcntl.h> --- 2221 unchanged lines hidden (view full) --- 2273 int error; 2274 struct ctl_lun_modify_params *params; 2275 2276 params = &req->reqdata.modify; 2277 2278 if (params->lun_size_bytes != 0) { 2279 be_lun->size_bytes = params->lun_size_bytes; 2280 } else { |
| 2281 vn_lock(be_lun->vn, LK_SHARED | LK_RETRY); |
|
| 2281 error = VOP_GETATTR(be_lun->vn, &vattr, curthread->td_ucred); | 2282 error = VOP_GETATTR(be_lun->vn, &vattr, curthread->td_ucred); |
| 2283 VOP_UNLOCK(be_lun->vn, 0); |
|
| 2282 if (error != 0) { 2283 snprintf(req->error_str, sizeof(req->error_str), 2284 "error calling VOP_GETATTR() for file %s", 2285 be_lun->dev_path); 2286 return (error); 2287 } 2288 2289 be_lun->size_bytes = vattr.va_size; 2290 } 2291 2292 return (0); 2293} 2294 2295static int 2296ctl_be_block_modify_dev(struct ctl_be_block_lun *be_lun, 2297 struct ctl_lun_req *req) 2298{ | 2284 if (error != 0) { 2285 snprintf(req->error_str, sizeof(req->error_str), 2286 "error calling VOP_GETATTR() for file %s", 2287 be_lun->dev_path); 2288 return (error); 2289 } 2290 2291 be_lun->size_bytes = vattr.va_size; 2292 } 2293 2294 return (0); 2295} 2296 2297static int 2298ctl_be_block_modify_dev(struct ctl_be_block_lun *be_lun, 2299 struct ctl_lun_req *req) 2300{ |
| 2299 struct cdev *dev; 2300 struct cdevsw *devsw; | 2301 struct ctl_be_block_devdata *dev_data; |
| 2301 int error; 2302 struct ctl_lun_modify_params *params; 2303 uint64_t size_bytes; 2304 2305 params = &req->reqdata.modify; 2306 | 2302 int error; 2303 struct ctl_lun_modify_params *params; 2304 uint64_t size_bytes; 2305 2306 params = &req->reqdata.modify; 2307 |
| 2307 dev = be_lun->vn->v_rdev; 2308 devsw = dev->si_devsw; 2309 if (!devsw->d_ioctl) { | 2308 dev_data = &be_lun->backend.dev; 2309 if (!dev_data->csw->d_ioctl) { |
| 2310 snprintf(req->error_str, sizeof(req->error_str), 2311 "%s: no d_ioctl for device %s!", __func__, 2312 be_lun->dev_path); 2313 return (ENODEV); 2314 } 2315 | 2310 snprintf(req->error_str, sizeof(req->error_str), 2311 "%s: no d_ioctl for device %s!", __func__, 2312 be_lun->dev_path); 2313 return (ENODEV); 2314 } 2315 |
| 2316 error = devsw->d_ioctl(dev, DIOCGMEDIASIZE, | 2316 error = dev_data->csw->d_ioctl(dev_data->cdev, DIOCGMEDIASIZE, |
| 2317 (caddr_t)&size_bytes, FREAD, 2318 curthread); 2319 if (error) { 2320 snprintf(req->error_str, sizeof(req->error_str), 2321 "%s: error %d returned for DIOCGMEDIASIZE ioctl " 2322 "on %s!", __func__, error, be_lun->dev_path); 2323 return (error); 2324 } --- 16 unchanged lines hidden (view full) --- 2341 return (0); 2342} 2343 2344static int 2345ctl_be_block_modify(struct ctl_be_block_softc *softc, struct ctl_lun_req *req) 2346{ 2347 struct ctl_lun_modify_params *params; 2348 struct ctl_be_block_lun *be_lun; | 2317 (caddr_t)&size_bytes, FREAD, 2318 curthread); 2319 if (error) { 2320 snprintf(req->error_str, sizeof(req->error_str), 2321 "%s: error %d returned for DIOCGMEDIASIZE ioctl " 2322 "on %s!", __func__, error, be_lun->dev_path); 2323 return (error); 2324 } --- 16 unchanged lines hidden (view full) --- 2341 return (0); 2342} 2343 2344static int 2345ctl_be_block_modify(struct ctl_be_block_softc *softc, struct ctl_lun_req *req) 2346{ 2347 struct ctl_lun_modify_params *params; 2348 struct ctl_be_block_lun *be_lun; |
| 2349 uint64_t oldsize; |
|
| 2349 int error; 2350 2351 params = &req->reqdata.modify; 2352 2353 mtx_lock(&softc->lock); 2354 2355 be_lun = NULL; 2356 --- 14 unchanged lines hidden (view full) --- 2371 if (params->lun_size_bytes < be_lun->blocksize) { 2372 snprintf(req->error_str, sizeof(req->error_str), 2373 "%s: LUN size %ju < blocksize %u", __func__, 2374 params->lun_size_bytes, be_lun->blocksize); 2375 goto bailout_error; 2376 } 2377 } 2378 | 2350 int error; 2351 2352 params = &req->reqdata.modify; 2353 2354 mtx_lock(&softc->lock); 2355 2356 be_lun = NULL; 2357 --- 14 unchanged lines hidden (view full) --- 2372 if (params->lun_size_bytes < be_lun->blocksize) { 2373 snprintf(req->error_str, sizeof(req->error_str), 2374 "%s: LUN size %ju < blocksize %u", __func__, 2375 params->lun_size_bytes, be_lun->blocksize); 2376 goto bailout_error; 2377 } 2378 } 2379 |
| 2379 vn_lock(be_lun->vn, LK_SHARED | LK_RETRY); 2380 | 2380 oldsize = be_lun->size_bytes; |
| 2381 if (be_lun->vn->v_type == VREG) 2382 error = ctl_be_block_modify_file(be_lun, req); 2383 else 2384 error = ctl_be_block_modify_dev(be_lun, req); | 2381 if (be_lun->vn->v_type == VREG) 2382 error = ctl_be_block_modify_file(be_lun, req); 2383 else 2384 error = ctl_be_block_modify_dev(be_lun, req); |
| 2385 2386 VOP_UNLOCK(be_lun->vn, 0); 2387 | |
| 2388 if (error != 0) 2389 goto bailout_error; 2390 | 2385 if (error != 0) 2386 goto bailout_error; 2387 |
| 2391 be_lun->size_blocks = be_lun->size_bytes >> be_lun->blocksize_shift; | 2388 if (be_lun->size_bytes != oldsize) { 2389 be_lun->size_blocks = be_lun->size_bytes >> 2390 be_lun->blocksize_shift; |
| 2392 | 2391 |
| 2393 /* 2394 * The maximum LBA is the size - 1. 2395 * 2396 * XXX: Note that this field is being updated without locking, 2397 * which might cause problems on 32-bit architectures. 2398 */ 2399 be_lun->ctl_be_lun.maxlba = be_lun->size_blocks - 1; 2400 ctl_lun_capacity_changed(&be_lun->ctl_be_lun); | 2392 /* 2393 * The maximum LBA is the size - 1. 2394 * 2395 * XXX: Note that this field is being updated without locking, 2396 * which might cause problems on 32-bit architectures. 2397 */ 2398 be_lun->ctl_be_lun.maxlba = be_lun->size_blocks - 1; 2399 ctl_lun_capacity_changed(&be_lun->ctl_be_lun); 2400 } |
| 2401 2402 /* Tell the user the exact size we ended up using */ 2403 params->lun_size_bytes = be_lun->size_bytes; 2404 2405 req->status = CTL_LUN_OK; 2406 2407 return (0); 2408 --- 194 unchanged lines hidden --- | 2401 2402 /* Tell the user the exact size we ended up using */ 2403 params->lun_size_bytes = be_lun->size_bytes; 2404 2405 req->status = CTL_LUN_OK; 2406 2407 return (0); 2408 --- 194 unchanged lines hidden --- |