From: Jens Axboe <axboe@kernel.dk>
Date: Fri, 22 May 2020 16:19:22 +0000 (-0600)
Subject: btrfs: flag files as supporting buffered async reads
X-Git-Tag: v5.15~3276^2~110^2~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8730f12b7962b21ea9ad2756abce1e205d22db84;p=platform%2Fkernel%2Flinux-starfive.git

btrfs: flag files as supporting buffered async reads

btrfs uses generic_file_read_iter(), which already supports this.

Acked-by: Chris Mason <clm@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 2c14312..234a418 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -3472,7 +3472,7 @@ 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);
 }