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SCSI fixes on 20150410 

This is our remaining set of three fixes for 4.0: two oops fixes(one for cable
 pulls triggering oopses and the other be2iscsi specific) and one warn on in
 sysfs on multipath devices using enclosures.
 
 Signed-off-by: James Bottomley <JBottomley@Odin.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is our remaining set of three fixes for 4.0: two oops fixes(one
  for cable pulls triggering oopses and the other be2iscsi specific) and
  one warn on in sysfs on multipath devices using enclosures"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  Defer processing of REQ_PREEMPT requests for blocked devices
  be2iscsi: Fix kernel panic when device initialization fails
  enclosure: fix WARN_ON removing an adapter in multi-path devices
hifive-unleashed-5.1
Linus Torvalds 2015-04-10 17:41:47 -07:00
parent 49850a147c bba0bdd7ad
commit 3259b12ae1
4 changed files with 13 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/misc/enclosure.c
View File

@ -202,16 +202,17 @@ static void enclosure_remove_links(struct enclosure_component *cdev)
{
char name[ENCLOSURE_NAME_SIZE];
enclosure_link_name(cdev, name);
/*
* In odd circumstances, like multipath devices, something else may
* already have removed the links, so check for this condition first.
*/
if (!cdev->dev->kobj.sd)
return;
if (cdev->dev->kobj.sd)
sysfs_remove_link(&cdev->dev->kobj, name);
enclosure_link_name(cdev, name);
sysfs_remove_link(&cdev->dev->kobj, name);
sysfs_remove_link(&cdev->cdev.kobj, "device");
if (cdev->cdev.kobj.sd)
sysfs_remove_link(&cdev->cdev.kobj, "device");
}
static int enclosure_add_links(struct enclosure_component *cdev)

2
drivers/scsi/be2iscsi/be_main.c
View File

@ -5734,9 +5734,9 @@ free_port:
hba_free:
if (phba->msix_enabled)
pci_disable_msix(phba->pcidev);
iscsi_host_remove(phba->shost);
pci_dev_put(phba->pcidev);
iscsi_host_free(phba->shost);
pci_set_drvdata(pcidev, NULL);
disable_pci:
pci_disable_device(pcidev);
return ret;

4
drivers/scsi/scsi_lib.c
View File

@ -1311,9 +1311,11 @@ scsi_prep_state_check(struct scsi_device *sdev, struct request *req)
"rejecting I/O to dead device\n");
ret = BLKPREP_KILL;
break;
case SDEV_QUIESCE:
case SDEV_BLOCK:
case SDEV_CREATED_BLOCK:
ret = BLKPREP_DEFER;
break;
case SDEV_QUIESCE:
/*
* If the devices is blocked we defer normal commands.
*/

4
include/linux/blk_types.h
View File

@ -181,7 +181,9 @@ enum rq_flag_bits {
__REQ_ELVPRIV, /* elevator private data attached */
__REQ_FAILED, /* set if the request failed */
__REQ_QUIET, /* don't worry about errors */
__REQ_PREEMPT, /* set for "ide_preempt" requests */
__REQ_PREEMPT, /* set for "ide_preempt" requests and also
for requests for which the SCSI "quiesce"
state must be ignored. */
__REQ_ALLOCED, /* request came from our alloc pool */
__REQ_COPY_USER, /* contains copies of user pages */
__REQ_FLUSH_SEQ, /* request for flush sequence */