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authorIngo Molnar <mingo@kernel.org>2019-02-28 09:50:39 +0300
committerIngo Molnar <mingo@kernel.org>2019-02-28 09:50:39 +0300
commit0614621d89c43ea5b28456c2baf6b0c0e00ca81e (patch)
tree2dff833e972bdb65d30cb317985a0d41d2c40f0e /drivers/scsi/sd.c
parent0cf264b3133dce56a60ca8b4335d1f76fe26870a (diff)
parent7d762d69145a54d169f58e56d6dac57a5508debc (diff)
downloadlinux-0614621d89c43ea5b28456c2baf6b0c0e00ca81e.tar.xz
Merge branch 'linus' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/scsi/sd.c')
-rw-r--r--drivers/scsi/sd.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index b2da8a00ec33..5464d467e23e 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2951,9 +2951,6 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp)
if (rot == 1) {
blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, q);
- } else {
- blk_queue_flag_clear(QUEUE_FLAG_NONROT, q);
- blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, q);
}
if (sdkp->device->type == TYPE_ZBC) {
@@ -3090,6 +3087,15 @@ static int sd_revalidate_disk(struct gendisk *disk)
if (sdkp->media_present) {
sd_read_capacity(sdkp, buffer);
+ /*
+ * set the default to rotational. All non-rotational devices
+ * support the block characteristics VPD page, which will
+ * cause this to be updated correctly and any device which
+ * doesn't support it should be treated as rotational.
+ */
+ blk_queue_flag_clear(QUEUE_FLAG_NONROT, q);
+ blk_queue_flag_set(QUEUE_FLAG_ADD_RANDOM, q);
+
if (scsi_device_supports_vpd(sdp)) {
sd_read_block_provisioning(sdkp);
sd_read_block_limits(sdkp);