]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[SCSI] update SG_ALL to avoid causing chaining
authorJames Bottomley <James.Bottomley@HansenPartnership.com>
Sun, 10 Feb 2008 15:42:46 +0000 (09:42 -0600)
committerJames Bottomley <James.Bottomley@HansenPartnership.com>
Mon, 11 Feb 2008 19:40:13 +0000 (13:40 -0600)
commit4660c8ed5aaed99d82785499f034a8cc9199866d
tree5583446125e4d649f28cb678ee809a2937964555
parent90b0c41829450d60da388edcd346c5b31371e7be
[SCSI] update SG_ALL to avoid causing chaining

Since the sg chaining patches went in, our current value of 255 for
SG_ALL excites chaining on some drivers which cannot support it (and
would thus oops).  Redefine SG_ALL to mean no sg table size
preference, but use the single allocation (non chained) limit.  This
also helps for drivers that use it to size an internal table.

We'll do an opt in system later where truly chaining supporting
drivers can define their sg_tablesize to be anything up to
SCSI_MAX_SG_CHAIN_ELEMENTS.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
include/scsi/scsi_host.h