linux-kernel - [PATCH v2 09/13] exfat: remove handling of non-file types in exfat_map

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Message-ID: <20260108074929.356683-10-chizhiling@163.com>
Date: Thu,  8 Jan 2026 15:49:25 +0800
From: Chi Zhiling <chizhiling@....com>
To: linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Namjae Jeon <linkinjeon@...nel.org>,
	Sungjong Seo <sj1557.seo@...sung.com>,
	Yuezhang Mo <yuezhang.mo@...y.com>,
	Chi Zhiling <chizhiling@...inos.cn>,
	Yuezhang Mo <Yuezhang.Mo@...y.com>
Subject: [PATCH v2 09/13] exfat: remove handling of non-file types in exfat_map_cluster

From: Chi Zhiling <chizhiling@...inos.cn>

Yuezhang said: "exfat_map_cluster() is only used for files. The code
in this 'else' block is never executed and can be cleaned up."

Suggested-by: Yuezhang Mo <Yuezhang.Mo@...y.com>
Signed-off-by: Chi Zhiling <chizhiling@...inos.cn>
---
 fs/exfat/inode.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c
index 55984585526e..b714d242b238 100644
--- a/fs/exfat/inode.c
+++ b/fs/exfat/inode.c
@@ -156,27 +156,11 @@ static int exfat_map_cluster(struct inode *inode, unsigned int clu_offset,
 			else
 				*clu += clu_offset;
 		}
-	} else if (ei->type == TYPE_FILE) {
+	} else {
 		int err = exfat_get_cluster(inode, clu_offset,
 				clu, &last_clu);
 		if (err)
 			return -EIO;
-	} else {
-		/* hint information */
-		if (clu_offset > 0 && ei->hint_bmap.off != EXFAT_EOF_CLUSTER &&
-		    ei->hint_bmap.off > 0 && clu_offset >= ei->hint_bmap.off) {
-			clu_offset -= ei->hint_bmap.off;
-			/* hint_bmap.clu should be valid */
-			WARN_ON(ei->hint_bmap.clu < 2);
-			*clu = ei->hint_bmap.clu;
-		}
-
-		while (clu_offset > 0 && *clu != EXFAT_EOF_CLUSTER) {
-			last_clu = *clu;
-			if (exfat_get_next_cluster(sb, clu))
-				return -EIO;
-			clu_offset--;
-		}
 	}
 
 	if (*clu == EXFAT_EOF_CLUSTER) {
-- 
2.43.0