From: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Date: Wed, 22 Oct 2025 11:41:03 +0000 (+0200)
Subject: blktrace: untangle if/else sequence in __blk_add_trace
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=70e3c62b891281b94b9d449a381e033ce592acc8;p=thirdparty%2Flinux.git

blktrace: untangle if/else sequence in __blk_add_trace

Untangle the if/else sequence setting the trace action in
__blk_add_trace() and turn it into a switch statement for better
extensibility.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 51745832c713c..11e264f67851e 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -278,10 +278,19 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
 	what |= MASK_TC_BIT(opf, META);
 	what |= MASK_TC_BIT(opf, PREFLUSH);
 	what |= MASK_TC_BIT(opf, FUA);
-	if (op == REQ_OP_DISCARD || op == REQ_OP_SECURE_ERASE)
+
+	switch (op) {
+	case REQ_OP_DISCARD:
+	case REQ_OP_SECURE_ERASE:
 		what |= BLK_TC_ACT(BLK_TC_DISCARD);
-	if (op == REQ_OP_FLUSH)
+		break;
+	case REQ_OP_FLUSH:
 		what |= BLK_TC_ACT(BLK_TC_FLUSH);
+		break;
+	default:
+		break;
+	}
+
 	if (cgid)
 		what |= __BLK_TA_CGROUP;