linux-ext4 - [PATCH 1/2] fs: add FMODE_DIO_PARALLEL

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Date:   Wed, 12 Apr 2023 15:40:57 +0200
From:   Bernd Schubert <bschubert@....com>
To:     axboe@...nel.dk
Cc:     io-uring@...r.kernel.org, linux-ext4@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-xfs@...r.kernel.org,
        dsingh@....com, bschubert@....com
Subject: [PATCH 1/2] fs: add FMODE_DIO_PARALLEL_WRITE flag

Miklos, Jens,

could we please also set this flag for fuse?


Thanks,
Bernd


fuse: Set FMODE_DIO_PARALLEL_WRITE flag

From: Bernd Schubert <bschubert@....com>

Fuse can also do parallel DIO writes, if userspace has enabled it.

Signed-off-by: Bernd Schubert <bschubert@....com>
---
 fs/fuse/file.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 875314ee6f59..46e7f1196fd1 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -215,6 +215,9 @@ void fuse_finish_open(struct inode *inode, struct file *file)
 	}
 	if ((file->f_mode & FMODE_WRITE) && fc->writeback_cache)
 		fuse_link_write_file(file);
+
+	if (ff->open_flags & FOPEN_PARALLEL_DIRECT_WRITES)
+		file->f_mode |= FMODE_DIO_PARALLEL_WRITE;
 }
 
 int fuse_open_common(struct inode *inode, struct file *file, bool isdir)