2020-05-24 19:24:42

by Jens Axboe

Subject: [PATCH 10/12] btrfs: flag files as supporting buffered async reads

btrfs uses generic_file_read_iter(), which already supports this.

Signed-off-by: Jens Axboe <[email protected]>
---
fs/btrfs/file.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 719e68ab552c..c933b6a1b4a8 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -3480,7 +3480,7 @@ static loff_t btrfs_file_llseek(struct file *file, loff_t offset, int whence)

static int btrfs_file_open(struct inode *inode, struct file *filp)
{
- filp->f_mode |= FMODE_NOWAIT;
+ filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
return generic_file_open(inode, filp);
}

--
2.26.2

2020-05-26 23:25:40

by Chris Mason

Subject: Re: [PATCH 10/12] btrfs: flag files as supporting buffered async reads

On 26 May 2020, at 15:51, Jens Axboe wrote:

> btrfs uses generic_file_read_iter(), which already supports this.
>
> Signed-off-by: Jens Axboe <[email protected]>

Really looking forward to this!

Acked-by: Chris Mason <[email protected]>