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-rw-r--r--block/blk-sysfs.c59
1 files changed, 26 insertions, 33 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 6b2429cad8..8c8f69d8ba 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -174,23 +174,29 @@ static ssize_t queue_discard_max_show(struct request_queue *q, char *page)
static ssize_t queue_discard_max_store(struct request_queue *q,
const char *page, size_t count)
{
- unsigned long max_discard;
- ssize_t ret = queue_var_store(&max_discard, page, count);
+ unsigned long max_discard_bytes;
+ struct queue_limits lim;
+ ssize_t ret;
+ int err;
+ ret = queue_var_store(&max_discard_bytes, page, count);
if (ret < 0)
return ret;
- if (max_discard & (q->limits.discard_granularity - 1))
+ if (max_discard_bytes & (q->limits.discard_granularity - 1))
return -EINVAL;
- max_discard >>= 9;
- if (max_discard > UINT_MAX)
+ if ((max_discard_bytes >> SECTOR_SHIFT) > UINT_MAX)
return -EINVAL;
- if (max_discard > q->limits.max_hw_discard_sectors)
- max_discard = q->limits.max_hw_discard_sectors;
+ blk_mq_freeze_queue(q);
+ lim = queue_limits_start_update(q);
+ lim.max_user_discard_sectors = max_discard_bytes >> SECTOR_SHIFT;
+ err = queue_limits_commit_update(q, &lim);
+ blk_mq_unfreeze_queue(q);
- q->limits.max_discard_sectors = max_discard;
+ if (err)
+ return err;
return ret;
}
@@ -226,35 +232,22 @@ static ssize_t queue_zone_append_max_show(struct request_queue *q, char *page)
static ssize_t
queue_max_sectors_store(struct request_queue *q, const char *page, size_t count)
{
- unsigned long var;
- unsigned int max_sectors_kb,
- max_hw_sectors_kb = queue_max_hw_sectors(q) >> 1,
- page_kb = 1 << (PAGE_SHIFT - 10);
- ssize_t ret = queue_var_store(&var, page, count);
+ unsigned long max_sectors_kb;
+ struct queue_limits lim;
+ ssize_t ret;
+ int err;
+ ret = queue_var_store(&max_sectors_kb, page, count);
if (ret < 0)
return ret;
- max_sectors_kb = (unsigned int)var;
- max_hw_sectors_kb = min_not_zero(max_hw_sectors_kb,
- q->limits.max_dev_sectors >> 1);
- if (max_sectors_kb == 0) {
- q->limits.max_user_sectors = 0;
- max_sectors_kb = min(max_hw_sectors_kb,
- BLK_DEF_MAX_SECTORS_CAP >> 1);
- } else {
- if (max_sectors_kb > max_hw_sectors_kb ||
- max_sectors_kb < page_kb)
- return -EINVAL;
- q->limits.max_user_sectors = max_sectors_kb << 1;
- }
-
- spin_lock_irq(&q->queue_lock);
- q->limits.max_sectors = max_sectors_kb << 1;
- if (q->disk)
- q->disk->bdi->io_pages = max_sectors_kb >> (PAGE_SHIFT - 10);
- spin_unlock_irq(&q->queue_lock);
-
+ blk_mq_freeze_queue(q);
+ lim = queue_limits_start_update(q);
+ lim.max_user_sectors = max_sectors_kb << 1;
+ err = queue_limits_commit_update(q, &lim);
+ blk_mq_unfreeze_queue(q);
+ if (err)
+ return err;
return ret;
}