Thread (24 messages) 24 messages, 3 authors, 2015-09-30
STALE3906d

[PATCH 06/12] raid5-cache: clean up r5l_get_meta

From: Christoph Hellwig <hch@lst.de>
Date: 2015-09-12 06:17:12
Subsystem: software raid (multiple disks) support, the rest · Maintainers: Song Liu, Yu Kuai, Linus Torvalds

Remove the only partially used local 'io' variable to simplify the code
flow.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/md/raid5-cache.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index d813c89..f9aaf2b 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -320,16 +320,12 @@ static struct r5l_io_unit *r5l_new_meta(struct r5l_log *log)
 
 static int r5l_get_meta(struct r5l_log *log, unsigned int payload_size)
 {
-	struct r5l_io_unit *io;
-
-	io = log->current_io;
-	if (io && io->meta_offset + payload_size > PAGE_SIZE)
+	if (log->current_io &&
+	    log->current_io->meta_offset + payload_size > PAGE_SIZE)
 		r5l_submit_current_io(log);
-	io = log->current_io;
-	if (io)
-		return 0;
 
-	log->current_io = r5l_new_meta(log);
+	if (!log->current_io)
+		log->current_io = r5l_new_meta(log);
 	return 0;
 }
 
-- 
1.9.1
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