On 01/23/2017 04:29 PM, Christoph Hellwig wrote: > Currently blk-mq always allocates the sense buffer using normal GFP_KERNEL > allocation. Refactor the cmd pool code to split the cmd and sense allocation > and share the code to allocate the sense buffers as well as the sense buffer > slab caches between the legacy and blk-mq path. > > Note that this switches to lazy allocation of the sense slab caches - the > slab caches (not the actual allocations) won't be destroy until the scsi > module is unloaded instead of keeping track of hosts using them. > > Signed-off-by: Christoph Hellwig <[email protected]> > --- > drivers/scsi/hosts.c | 4 ++++ > drivers/scsi/scsi.c | 24 ++++--------------- > drivers/scsi/scsi_lib.c | 62 > +++++++++++++++++++++++++++++++++++++++++++++--- > drivers/scsi/scsi_priv.h | 5 ++++ > 4 files changed, 73 insertions(+), 22 deletions(-) > Reviewed-by: Hannes Reinecke <[email protected]>
Cheers, Hannes -- Dr. Hannes Reinecke Teamlead Storage & Networking [email protected] +49 911 74053 688 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton HRB 21284 (AG Nürnberg) -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
