linux-kernel - [PATCH 4/4] exfat: Fix discard support

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Date:   Tue, 17 Mar 2020 23:25:55 +0100
From:   Pali Rohár <pali@...nel.org>
To:     Namjae Jeon <namjae.jeon@...sung.com>,
        Sungjong Seo <sj1557.seo@...sung.com>,
        Alexander Viro <viro@...iv.linux.org.uk>
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] exfat: Fix discard support

Discard support was always unconditionally disabled. Now it is disabled
only in the case when blk_queue_discard() returns false.

Signed-off-by: Pali Rohár <pali@...nel.org>
---
 fs/exfat/super.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/exfat/super.c b/fs/exfat/super.c
index 16ed202ef527..30e914ad17b5 100644
--- a/fs/exfat/super.c
+++ b/fs/exfat/super.c
@@ -531,10 +531,11 @@ static int exfat_fill_super(struct super_block *sb, struct fs_context *fc)
 	if (opts->discard) {
 		struct request_queue *q = bdev_get_queue(sb->s_bdev);
 
-		if (!blk_queue_discard(q))
+		if (!blk_queue_discard(q)) {
 			exfat_msg(sb, KERN_WARNING,
 				"mounting with \"discard\" option, but the device does not support discard");
-		opts->discard = 0;
+			opts->discard = 0;
+		}
 	}
 
 	sb->s_flags |= SB_NODIRATIME;
-- 
2.20.1