08bd6c9da5
* add patch
+ boo1229062-re-enable-blk_queue_max_hw_sectors.patch
OBS-URL: https://build.opensuse.org/package/show/network:ha-clustering:Factory/drbd?expand=0&rev=151
60 lines
2.1 KiB
Diff
60 lines
2.1 KiB
Diff
diff -Nupr a/drbd/drbd_nl.c b/drbd/drbd_nl.c
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--- a/drbd/drbd_nl.c 2024-08-12 15:03:18.458476462 +0800
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+++ b/drbd/drbd_nl.c 2024-08-12 15:05:08.415670056 +0800
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@@ -2017,6 +2017,55 @@ static void fixup_discard_support(struct
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}
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}
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+/**
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+ * blk_queue_max_hw_sectors - set max sectors for a request for this queue
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+ * @q: the request queue for the device
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+ * @max_hw_sectors: max hardware sectors in the usual 512b unit
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+ *
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+ * Description:
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+ * Enables a low level driver to set a hard upper limit,
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+ * max_hw_sectors, on the size of requests. max_hw_sectors is set by
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+ * the device driver based upon the capabilities of the I/O
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+ * controller.
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+ *
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+ * max_dev_sectors is a hard limit imposed by the storage device for
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+ * READ/WRITE requests. It is set by the disk driver.
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+ *
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+ * max_sectors is a soft limit imposed by the block layer for
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+ * filesystem type requests. This value can be overridden on a
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+ * per-device basis in /sys/block/<device>/queue/max_sectors_kb.
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+ * The soft limit can not exceed max_hw_sectors.
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+ **/
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+static void blk_queue_max_hw_sectors(struct request_queue *q, unsigned int max_hw_sectors)
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+{
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+ struct queue_limits *limits = &q->limits;
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+ unsigned int max_sectors;
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+
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+ if ((max_hw_sectors << 9) < PAGE_SIZE) {
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+ max_hw_sectors = 1 << (PAGE_SHIFT - 9);
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+ pr_info("%s: set to minimum %u\n", __func__, max_hw_sectors);
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+ }
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+
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+ max_hw_sectors = round_down(max_hw_sectors,
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+ limits->logical_block_size >> SECTOR_SHIFT);
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+ limits->max_hw_sectors = max_hw_sectors;
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+
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+ max_sectors = min_not_zero(max_hw_sectors, limits->max_dev_sectors);
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+
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+ if (limits->max_user_sectors)
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+ max_sectors = min(max_sectors, limits->max_user_sectors);
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+ else
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+ max_sectors = min(max_sectors, BLK_DEF_MAX_SECTORS_CAP);
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+
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+ max_sectors = round_down(max_sectors,
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+ limits->logical_block_size >> SECTOR_SHIFT);
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+ limits->max_sectors = max_sectors;
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+
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+ if (!q->disk)
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+ return;
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+ q->disk->bdi->io_pages = max_sectors >> (PAGE_SHIFT - 9);
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+}
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+
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void drbd_reconsider_queue_parameters(struct drbd_device *device, struct drbd_backing_dev *bdev)
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{
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struct request_queue * const q = device->rq_queue;
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