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[1/6] ext2: Return BH_New buffers for zeroed blocks

Message ID 1479980796-26161-2-git-send-email-jack@suse.cz (mailing list archive)
State New, archived
Headers show

Commit Message

Jan Kara Nov. 24, 2016, 9:46 a.m. UTC 
So far we did not return BH_New buffers from ext2_get_blocks() when we
allocated and zeroed-out a block for DAX inode to avoid racy zeroing in
DAX code. This zeroing is gone these days so we can remove the
workaround.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/ext2/inode.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Ross Zwisler Nov. 29, 2016, 5:48 p.m. UTC | #1 
On Thu, Nov 24, 2016 at 10:46:31AM +0100, Jan Kara wrote:
> So far we did not return BH_New buffers from ext2_get_blocks() when we
> allocated and zeroed-out a block for DAX inode to avoid racy zeroing in
> DAX code. This zeroing is gone these days so we can remove the
> workaround.
> 
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> Signed-off-by: Jan Kara <jack@suse.cz>

Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
diff mbox

Patch

diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 046b642f3585..e626fe892c01 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -754,9 +754,8 @@  static int ext2_get_blocks(struct inode *inode,
 			mutex_unlock(&ei->truncate_mutex);
 			goto cleanup;
 		}
-	} else {
-		*new = true;
 	}
+	*new = true;
 
 	ext2_splice_branch(inode, iblock, partial, indirect_blks, count);
 	mutex_unlock(&ei->truncate_mutex);