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authorLinus Torvalds <torvalds@linux-foundation.org>2008-01-25 20:19:08 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2008-01-25 20:19:08 -0500
commit9b73e76f3cf63379dcf45fcd4f112f5812418d0a (patch)
tree4e6bef87cd0cd6d848fc39a5ae25b981dbbe035b /drivers/scsi/scsi_ioctl.c
parent50d9a126240f9961cfdd063336bbeb91f77a7dce (diff)
parent23c3e290fb9ce38cabc2822b47583fc8702411bf (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (200 commits) [SCSI] usbstorage: use last_sector_bug flag universally [SCSI] libsas: abstract STP task status into a function [SCSI] ultrastor: clean up inline asm warnings [SCSI] aic7xxx: fix firmware build [SCSI] aacraid: fib context lock for management ioctls [SCSI] ch: remove forward declarations [SCSI] ch: fix device minor number management bug [SCSI] ch: handle class_device_create failure properly [SCSI] NCR5380: fix section mismatch [SCSI] sg: fix /proc/scsi/sg/devices when no SCSI devices [SCSI] IB/iSER: add logical unit reset support [SCSI] don't use __GFP_DMA for sense buffers if not required [SCSI] use dynamically allocated sense buffer [SCSI] scsi.h: add macro for enclosure bit of inquiry data [SCSI] sd: add fix for devices with last sector access problems [SCSI] fix pcmcia compile problem [SCSI] aacraid: add Voodoo Lite class of cards. [SCSI] aacraid: add new driver features flags [SCSI] qla2xxx: Update version number to 8.02.00-k7. [SCSI] qla2xxx: Issue correct MBC_INITIALIZE_FIRMWARE command. ...
Diffstat (limited to 'drivers/scsi/scsi_ioctl.c')
-rw-r--r--drivers/scsi/scsi_ioctl.c26
1 files changed, 17 insertions, 9 deletions
diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c
index 32293f451669..28b19ef26309 100644
--- a/drivers/scsi/scsi_ioctl.c
+++ b/drivers/scsi/scsi_ioctl.c
@@ -174,10 +174,15 @@ static int scsi_ioctl_get_pci(struct scsi_device *sdev, void __user *arg)
174} 174}
175 175
176 176
177/* 177/**
178 * the scsi_ioctl() function differs from most ioctls in that it does 178 * scsi_ioctl - Dispatch ioctl to scsi device
179 * not take a major/minor number as the dev field. Rather, it takes 179 * @sdev: scsi device receiving ioctl
180 * a pointer to a scsi_devices[] element, a structure. 180 * @cmd: which ioctl is it
181 * @arg: data associated with ioctl
182 *
183 * Description: The scsi_ioctl() function differs from most ioctls in that it
184 * does not take a major/minor number as the dev field. Rather, it takes
185 * a pointer to a &struct scsi_device.
181 */ 186 */
182int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 187int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
183{ 188{
@@ -239,7 +244,7 @@ int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
239 return scsi_set_medium_removal(sdev, SCSI_REMOVAL_ALLOW); 244 return scsi_set_medium_removal(sdev, SCSI_REMOVAL_ALLOW);
240 case SCSI_IOCTL_TEST_UNIT_READY: 245 case SCSI_IOCTL_TEST_UNIT_READY:
241 return scsi_test_unit_ready(sdev, IOCTL_NORMAL_TIMEOUT, 246 return scsi_test_unit_ready(sdev, IOCTL_NORMAL_TIMEOUT,
242 NORMAL_RETRIES); 247 NORMAL_RETRIES, NULL);
243 case SCSI_IOCTL_START_UNIT: 248 case SCSI_IOCTL_START_UNIT:
244 scsi_cmd[0] = START_STOP; 249 scsi_cmd[0] = START_STOP;
245 scsi_cmd[1] = 0; 250 scsi_cmd[1] = 0;
@@ -264,9 +269,12 @@ int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
264} 269}
265EXPORT_SYMBOL(scsi_ioctl); 270EXPORT_SYMBOL(scsi_ioctl);
266 271
267/* 272/**
268 * the scsi_nonblock_ioctl() function is designed for ioctls which may 273 * scsi_nonblock_ioctl() - Handle SG_SCSI_RESET
269 * be executed even if the device is in recovery. 274 * @sdev: scsi device receiving ioctl
275 * @cmd: Must be SC_SCSI_RESET
276 * @arg: pointer to int containing SG_SCSI_RESET_{DEVICE,BUS,HOST}
277 * @filp: either NULL or a &struct file which must have the O_NONBLOCK flag.
270 */ 278 */
271int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd, 279int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd,
272 void __user *arg, struct file *filp) 280 void __user *arg, struct file *filp)
@@ -276,7 +284,7 @@ int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd,
276 /* The first set of iocts may be executed even if we're doing 284 /* The first set of iocts may be executed even if we're doing
277 * error processing, as long as the device was opened 285 * error processing, as long as the device was opened
278 * non-blocking */ 286 * non-blocking */
279 if (filp && filp->f_flags & O_NONBLOCK) { 287 if (filp && (filp->f_flags & O_NONBLOCK)) {
280 if (scsi_host_in_recovery(sdev->host)) 288 if (scsi_host_in_recovery(sdev->host))
281 return -ENODEV; 289 return -ENODEV;
282 } else if (!scsi_block_when_processing_errors(sdev)) 290 } else if (!scsi_block_when_processing_errors(sdev))