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Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

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* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (28 commits)
  [SCSI] mpt fusion: Changes in mptctl.c for logging support
  [SCSI] mpt fusion: Changes in mptfc.c mptlan.c mptsas.c and mptspi.c for logging support
  [SCSI] mpt fusion: Changes in mptscsih.c for logging support
  [SCSI] mpt fusion: Changes in mptbase.c for logging support
  [SCSI] mpt fusion: logging support in Kconfig, Makefile, mptbase.h and addition of mptdebug.h
  [SCSI] libsas: Fix potential NULL dereference in sas_smp_get_phy_events()
  [SCSI] bsg: Fix build for CONFIG_BLOCK=n
  [SCSI] aacraid: fix Sunrise Lake reset handling
  [SCSI] aacraid: add SCSI SYNCHONIZE_CACHE range checking
  [SCSI] add easyRAID to the no report luns blacklist
  [SCSI] advansys: lindent and other large, uninteresting changes
  [SCSI] aic79xx, aic7xxx: Fix incorrect width setting
  [SCSI] qla2xxx: fix to honor ignored parameters in sysfs attributes
  [SCSI] aacraid: draw line in sand, sundry cleanup and version update
  [SCSI] iscsi_tcp: Turn off bounce buffers
  [SCSI] libiscsi: fix cmd seqeunce number checking
  [SCSI] iscsi_tcp, ib_iser Enable module refcounting for iscsi host template
  [SCSI] libiscsi: make sure session is not blocked when removing host
  [SCSI] libsas: Remove PCI dependencies
  [SCSI] simscsi: convert to use the data buffer accessors
  ...
This commit is contained in:
Linus Torvalds 2007-07-29 17:22:03 -07:00
commit a6ce22a5f6
39 changed files with 16012 additions and 14982 deletions
Download patch file Download diff file Expand all files Collapse all files

80
block/bsg.c
View file

@ -9,13 +9,6 @@
* archive for more details.
*
*/
/*
* TODO
* - Should this get merged, block/scsi_ioctl.c will be migrated into
* this file. To keep maintenance down, it's easier to have them
* seperated right now.
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/file.h>
@ -24,6 +17,7 @@
#include <linux/cdev.h>
#include <linux/percpu.h>
#include <linux/uio.h>
#include <linux/idr.h>
#include <linux/bsg.h>
#include <scsi/scsi.h>
@ -70,13 +64,12 @@ enum {
#endif
static DEFINE_MUTEX(bsg_mutex);
static int bsg_device_nr, bsg_minor_idx;
static DEFINE_IDR(bsg_minor_idr);
#define BSG_LIST_ARRAY_SIZE 8
static struct hlist_head bsg_device_list[BSG_LIST_ARRAY_SIZE];
static struct class *bsg_class;
static LIST_HEAD(bsg_class_list);
static int bsg_major;
static struct kmem_cache *bsg_cmd_cachep;
@ -92,7 +85,6 @@ struct bsg_command {
struct bio *bidi_bio;
int err;
struct sg_io_v4 hdr;
struct sg_io_v4 __user *uhdr;
char sense[SCSI_SENSE_BUFFERSIZE];
};
@ -620,7 +612,6 @@ static int __bsg_write(struct bsg_device *bd, const char __user *buf,
break;
}
bc->uhdr = (struct sg_io_v4 __user *) buf;
if (copy_from_user(&bc->hdr, buf, sizeof(bc->hdr))) {
ret = -EFAULT;
break;
@ -781,23 +772,18 @@ static struct bsg_device *__bsg_get_device(int minor)
static struct bsg_device *bsg_get_device(struct inode *inode, struct file *file)
{
struct bsg_device *bd = __bsg_get_device(iminor(inode));
struct bsg_class_device *bcd, *__bcd;
struct bsg_device *bd;
struct bsg_class_device *bcd;
bd = __bsg_get_device(iminor(inode));
if (bd)
return bd;
/*
* find the class device
*/
bcd = NULL;
mutex_lock(&bsg_mutex);
list_for_each_entry(__bcd, &bsg_class_list, list) {
if (__bcd->minor == iminor(inode)) {
bcd = __bcd;
break;
}
}
bcd = idr_find(&bsg_minor_idr, iminor(inode));
mutex_unlock(&bsg_mutex);
if (!bcd)
@ -936,13 +922,12 @@ void bsg_unregister_queue(struct request_queue *q)
return;
mutex_lock(&bsg_mutex);
idr_remove(&bsg_minor_idr, bcd->minor);
sysfs_remove_link(&q->kobj, "bsg");
class_device_unregister(bcd->class_dev);
put_device(bcd->dev);
bcd->class_dev = NULL;
bcd->dev = NULL;
list_del_init(&bcd->list);
bsg_device_nr--;
mutex_unlock(&bsg_mutex);
}
EXPORT_SYMBOL_GPL(bsg_unregister_queue);
@ -950,9 +935,9 @@ EXPORT_SYMBOL_GPL(bsg_unregister_queue);
int bsg_register_queue(struct request_queue *q, struct device *gdev,
const char *name)
{
struct bsg_class_device *bcd, *__bcd;
struct bsg_class_device *bcd;
dev_t dev;
int ret = -EMFILE;
int ret, minor;
struct class_device *class_dev = NULL;
const char *devname;
@ -969,28 +954,26 @@ int bsg_register_queue(struct request_queue *q, struct device *gdev,
bcd = &q->bsg_dev;
memset(bcd, 0, sizeof(*bcd));
INIT_LIST_HEAD(&bcd->list);
mutex_lock(&bsg_mutex);
if (bsg_device_nr == BSG_MAX_DEVS) {
ret = idr_pre_get(&bsg_minor_idr, GFP_KERNEL);
if (!ret) {
ret = -ENOMEM;
goto unlock;
}
ret = idr_get_new(&bsg_minor_idr, bcd, &minor);
if (ret < 0)
goto unlock;
if (minor >= BSG_MAX_DEVS) {
printk(KERN_ERR "bsg: too many bsg devices\n");
goto err;
ret = -EINVAL;
goto remove_idr;
}
retry:
list_for_each_entry(__bcd, &bsg_class_list, list) {
if (__bcd->minor == bsg_minor_idx) {
bsg_minor_idx++;
if (bsg_minor_idx == BSG_MAX_DEVS)
bsg_minor_idx = 0;
goto retry;
}
}
bcd->minor = bsg_minor_idx++;
if (bsg_minor_idx == BSG_MAX_DEVS)
bsg_minor_idx = 0;
bcd->minor = minor;
bcd->queue = q;
bcd->dev = get_device(gdev);
dev = MKDEV(bsg_major, bcd->minor);
@ -998,27 +981,26 @@ retry:
devname);
if (IS_ERR(class_dev)) {
ret = PTR_ERR(class_dev);
goto err_put;
goto put_dev;
}
bcd->class_dev = class_dev;
if (q->kobj.sd) {
ret = sysfs_create_link(&q->kobj, &bcd->class_dev->kobj, "bsg");
if (ret)
goto err_unregister;
goto unregister_class_dev;
}
list_add_tail(&bcd->list, &bsg_class_list);
bsg_device_nr++;
mutex_unlock(&bsg_mutex);
return 0;
err_unregister:
unregister_class_dev:
class_device_unregister(class_dev);
err_put:
put_dev:
put_device(gdev);
err:
remove_idr:
idr_remove(&bsg_minor_idr, minor);
unlock:
mutex_unlock(&bsg_mutex);
return ret;
}