From: Ritesh Harjani <riteshh@linux.ibm.com>
Date: Wed, 16 Oct 2019 07:37:11 +0000 (+0530)
Subject: ext4: Enable blocksize < pagesize for dioread_nolock
X-Git-Tag: v5.15~4836^2~22^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c33fbe8f673c55c178bfe69d0d9f06f1a68bf6cf;p=platform%2Fkernel%2Flinux-starfive.git

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@linux.ibm.com>
Link: https://lore.kernel.org/r/20191016073711.4141-6-riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index dd654e5..7796e2f 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;
 }