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authorMartin K. Petersen <martin.petersen@oracle.com>2022-03-02 08:35:50 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2022-05-02 23:59:11 +0300
commite60ac0b9e445822e60230c00e68d8cdb7748701b (patch)
tree75b122b19e4922541670042bf29c46a69a47f5c6 /include/scsi
parente17d63403076affccd72d195f93bbf3f39514005 (diff)
downloadlinux-e60ac0b9e445822e60230c00e68d8cdb7748701b.tar.xz
scsi: core: Cache VPD pages b0, b1, b2
The SCSI disk driver consults VPD pages b0 (Block Limits), b1 (Block Device Characteristics), and b2 (Logical Block Provisioning). Instead of having sd.c request these pages every revalidate cycle, cache them along with the other commonly used VPDs. Link: https://lore.kernel.org/r/20220302053559.32147-6-martin.petersen@oracle.com Reviewed-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'include/scsi')
-rw-r--r--include/scsi/scsi_device.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index c37cc5b3ebeb..7cf5f3b7589f 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -149,6 +149,10 @@ struct scsi_device {
struct scsi_vpd __rcu *vpd_pg83;
struct scsi_vpd __rcu *vpd_pg80;
struct scsi_vpd __rcu *vpd_pg89;
+ struct scsi_vpd __rcu *vpd_pgb0;
+ struct scsi_vpd __rcu *vpd_pgb1;
+ struct scsi_vpd __rcu *vpd_pgb2;
+
struct scsi_target *sdev_target;
blist_flags_t sdev_bflags; /* black/white flags as also found in