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author | Christoph Hellwig <hch@lst.de> | 2006-01-13 19:04:00 +0100 |
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committer | James Bottomley <jejb@mulgrave.(none)> | 2006-01-14 10:55:05 -0600 |
commit | e02f3f59225d8c3b2a0ad0dc941a09865e27da61 (patch) | |
tree | 37d2931f5d24dc063d9606ec6b5e8db359b439c7 /drivers/scsi/scsi_priv.h | |
parent | 6d5b0c315e0c14f8a0fe274eda7676d62cbd8584 (diff) | |
download | kernel_samsung_espresso10-e02f3f59225d8c3b2a0ad0dc941a09865e27da61.zip kernel_samsung_espresso10-e02f3f59225d8c3b2a0ad0dc941a09865e27da61.tar.gz kernel_samsung_espresso10-e02f3f59225d8c3b2a0ad0dc941a09865e27da61.tar.bz2 |
[SCSI] remove target parent limitiation
When James Smart fixed the issue of the userspace scan atributes
crashing the system with the FC transport class he added a patch to
let the transport class check if the parent is valid for a given
transport class.
When adding support for the integrated raid of fusion sas devices
we ran into a problem with that, as it didn't allow adding virtual
raid volumes without the transport class knowing about it.
So this patch adds a user_scan attribute instead, that takes over from
scsi_scan_host_selected if the transport class sets it and thus lets
the transport class control the user-initiated scanning. As this
plugs the hole about user-initiated scanning the target_parent hook
goes away and we rely on callers of the scanning routines to do
something sensible.
For SAS this meant I had to switch from a spinlock to a mutex to
synchronize the topology linked lists, in FC they were completely
unsynchronized which seems wrong.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/scsi_priv.h')
-rw-r--r-- | drivers/scsi/scsi_priv.h | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h index 14a6198..27c4827 100644 --- a/drivers/scsi/scsi_priv.h +++ b/drivers/scsi/scsi_priv.h @@ -26,12 +26,6 @@ struct Scsi_Host; #define SCSI_SENSE_VALID(scmd) \ (((scmd)->sense_buffer[0] & 0x70) == 0x70) -/* - * Special value for scanning to specify scanning or rescanning of all - * possible channels, (target) ids, or luns on a given shost. - */ -#define SCAN_WILD_CARD ~0 - /* hosts.c */ extern int scsi_init_hosts(void); extern void scsi_exit_hosts(void); |