linux-kernel - [PATCH] block: cleanup bio_integrity

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Date:   Tue, 25 Jul 2023 14:18:39 +0900
From:   Jinyoung Choi <j-young.choi@...sung.com>
To:     "axboe@...nel.dk" <axboe@...nel.dk>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     "hch@....de" <hch@....de>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>
Subject: [PATCH] block: cleanup bio_integrity_prep

If a problem occurs in the process of creating an integrity payload, the
status of bio is always BLK_STS_RESOURCE.

Reviewed-by: Christoph Hellwig <hch@....de>
Signed-off-by: Jinyoung Choi <j-young.choi@...sung.com>
---
 block/bio-integrity.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index 8f0af7ac8573..045553a164e0 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -199,7 +199,6 @@ bool bio_integrity_prep(struct bio *bio)
 	unsigned long start, end;
 	unsigned int len, nr_pages;
 	unsigned int bytes, offset, i;
-	blk_status_t status;
 
 	if (!bi)
 		return true;
@@ -227,7 +226,6 @@ bool bio_integrity_prep(struct bio *bio)
 	/* Allocate kernel buffer for protection data */
 	len = bio_integrity_bytes(bi, bio_sectors(bio));
 	buf = kmalloc(len, GFP_NOIO);
-	status = BLK_STS_RESOURCE;
 	if (unlikely(buf == NULL)) {
 		printk(KERN_ERR "could not allocate integrity buffer\n");
 		goto err_end_io;
@@ -242,7 +240,6 @@ bool bio_integrity_prep(struct bio *bio)
 	if (IS_ERR(bip)) {
 		printk(KERN_ERR "could not allocate data integrity bioset\n");
 		kfree(buf);
-		status = BLK_STS_RESOURCE;
 		goto err_end_io;
 	}
 
@@ -270,7 +267,6 @@ bool bio_integrity_prep(struct bio *bio)
 
 		if (ret == 0) {
 			printk(KERN_ERR "could not attach integrity payload\n");
-			status = BLK_STS_RESOURCE;
 			goto err_end_io;
 		}
 
@@ -292,7 +288,7 @@ bool bio_integrity_prep(struct bio *bio)
 	return true;
 
 err_end_io:
-	bio->bi_status = status;
+	bio->bi_status = BLK_STS_RESOURCE;
 	bio_endio(bio);
 	return false;
 
-- 
2.34.1