From 80660f20252d6f76c9f203874ad7c7a4a8508cf8 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Wed, 30 May 2018 13:03:46 -0700 Subject: dax: change bdev_dax_supported() to support boolean returns The function return values are confusing with the way the function is named. We expect a true or false return value but it actually returns 0/-errno. This makes the code very confusing. Changing the return values to return a bool where if DAX is supported then return true and no DAX support returns false. Signed-off-by: Dave Jiang Signed-off-by: Ross Zwisler Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/ext4/super.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'fs/ext4/super.c') diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 089170e99895..2e1622907f4a 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -3732,8 +3732,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) " that may contain inline data"); sbi->s_mount_opt &= ~EXT4_MOUNT_DAX; } - err = bdev_dax_supported(sb->s_bdev, blocksize); - if (err) { + if (!bdev_dax_supported(sb->s_bdev, blocksize)) { ext4_msg(sb, KERN_ERR, "DAX unsupported by block device. Turning off DAX."); sbi->s_mount_opt &= ~EXT4_MOUNT_DAX; -- cgit v1.2.3