add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/lightnvm/pblk-cache.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0
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 /*
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  * Copyright (C) 2016 CNEX Labs
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  * Initial release: Javier Gonzalez <javier@cnexlabs.com>
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@@ -17,18 +18,17 @@
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 #include "pblk.h"
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-int pblk_write_to_cache(struct pblk *pblk, struct bio *bio, unsigned long flags)
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+void pblk_write_to_cache(struct pblk *pblk, struct bio *bio,
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+				unsigned long flags)
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 {
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-	struct request_queue *q = pblk->dev->q;
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 	struct pblk_w_ctx w_ctx;
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 	sector_t lba = pblk_get_lba(bio);
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-	unsigned long start_time = jiffies;
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+	unsigned long start_time;
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 	unsigned int bpos, pos;
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 	int nr_entries = pblk_get_secs(bio);
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 	int i, ret;
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-	generic_start_io_acct(q, REQ_OP_WRITE, bio_sectors(bio),
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-			      &pblk->disk->part0);
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+	start_time = bio_start_io_acct(bio);
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 	/* Update the write buffer head (mem) with the entries that we can
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 	 * write. The write in itself cannot fail, so there is no need to
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@@ -42,6 +42,7 @@
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 		goto retry;
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 	case NVM_IO_ERR:
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 		pblk_pipeline_stop(pblk);
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+		bio_io_error(bio);
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 		goto out;
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 	}
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@@ -76,9 +77,11 @@
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 	pblk_rl_inserted(&pblk->rl, nr_entries);
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 out:
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-	generic_end_io_acct(q, REQ_OP_WRITE, &pblk->disk->part0, start_time);
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+	bio_end_io_acct(bio, start_time);
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 	pblk_write_should_kick(pblk);
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-	return ret;
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+
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+	if (ret == NVM_IO_DONE)
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+		bio_endio(bio);
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 }
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 /*