linux-ext4 - [RFC 5/5] ext4: Enable blocksize < pagesize for dioread

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Date:   Wed, 16 Oct 2019 13:07:11 +0530
From:   Ritesh Harjani <riteshh@...ux.ibm.com>
To:     tytso@....edu, jack@...e.cz, linux-ext4@...r.kernel.org
Cc:     linux-fsdevel@...r.kernel.org, mbobrowski@...browski.org,
        riteshh@...ux.ibm.com
Subject: [RFC 5/5] ext4: Enable blocksize < pagesize for dioread_nolock

All support is now added for blocksize < pagesize for dioread_nolock.
This patch removes those checks which disables dioread_nolock
feature for blocksize != pagesize.

Signed-off-by: Ritesh Harjani <riteshh@...ux.ibm.com>
---
 fs/ext4/super.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index dd654e53ba3d..7796e2ffc294 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2105,16 +2105,6 @@ static int parse_options(char *options, struct super_block *sb,
 		}
 	}
 #endif
-	if (test_opt(sb, DIOREAD_NOLOCK)) {
-		int blocksize =
-			BLOCK_SIZE << le32_to_cpu(sbi->s_es->s_log_block_size);
-
-		if (blocksize < PAGE_SIZE) {
-			ext4_msg(sb, KERN_ERR, "can't mount with "
-				 "dioread_nolock if block size != PAGE_SIZE");
-			return 0;
-		}
-	}
 	return 1;
 }
 
-- 
2.21.0