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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-09-11 05:04:00 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-09-11 05:04:00 -0300
commit273d4428f8c4cc94c9598f8bcc006ec2e8c654ea (patch)
treea453898167c5f6387e740a704a46b44b0a35b88a /drivers/target/target_core_device.c
parent863981e96738983919de841ec669e157e6bdaeb0 (diff)
Linux-libre 4.7.2-gnupck-4.7.2-gnu
Diffstat (limited to 'drivers/target/target_core_device.c')
-rw-r--r--drivers/target/target_core_device.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index a4046ca6e..6b423485c 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -821,13 +821,15 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
* in ATA and we need to set TPE=1
*/
bool target_configure_unmap_from_queue(struct se_dev_attrib *attrib,
- struct request_queue *q, int block_size)
+ struct request_queue *q)
{
+ int block_size = queue_logical_block_size(q);
+
if (!blk_queue_discard(q))
return false;
- attrib->max_unmap_lba_count = (q->limits.max_discard_sectors << 9) /
- block_size;
+ attrib->max_unmap_lba_count =
+ q->limits.max_discard_sectors >> (ilog2(block_size) - 9);
/*
* Currently hardcoded to 1 in Linux/SCSI code..
*/