From: Christoph Hellwig <hch@lst.de>
Date: Tue, 6 May 2025 12:17:22 +0000 (+0530)
Subject: fs: add a write stream field to the kiocb
X-Git-Tag: v6.16-rc1~216^2~68
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=732f25a2895a8c1c54fb56544f0b1e23770ef4d7;p=thirdparty%2Fkernel%2Flinux.git

fs: add a write stream field to the kiocb

Prepare for io_uring passthrough of write streams. The write stream
field in the kiocb structure fits into an existing 2-byte hole, so its
size is not changed.

Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Nitesh Shetty <nj.shetty@samsung.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Link: https://lore.kernel.org/r/20250506121732.8211-2-joshi.k@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 016b0fe1536e3..d5988867fe316 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -408,6 +408,7 @@ struct kiocb {
 	void			*private;
 	int			ki_flags;
 	u16			ki_ioprio; /* See linux/ioprio.h */
+	u8			ki_write_stream;
 	union {
 		/*
 		 * Only used for async buffered reads, where it denotes the