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scsi: core: don't preallocate small SGL in case of NO_SG_CHAIN
The preallocated small SGL depends on SG_CHAIN so if the ARCH doesn't support SG_CHAIN, preallocation of small SGL can't work at all. Fix this issue by not using small preallocation in case of NO_SG_CHAIN. Cc: Christoph Hellwig <hch@lst.de> Cc: Bart Van Assche <bvanassche@acm.org> Cc: Ewan D. Milne <emilne@redhat.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Reported-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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@ -43,9 +43,13 @@
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* Size of integrity metadata is usually small, 1 inline sg should
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* cover normal cases.
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*/
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#ifdef CONFIG_ARCH_NO_SG_CHAIN
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#define SCSI_INLINE_PROT_SG_CNT 0
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#define SCSI_INLINE_SG_CNT 0
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#else
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#define SCSI_INLINE_PROT_SG_CNT 1
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#define SCSI_INLINE_SG_CNT 2
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#endif
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static struct kmem_cache *scsi_sdb_cache;
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static struct kmem_cache *scsi_sense_cache;
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