linux-kernel - [PATCH 16/17] xfs: flag as supporting FOP

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Message-ID: <20241114152743.2381672-18-axboe@kernel.dk>
Date: Thu, 14 Nov 2024 08:25:20 -0700
From: Jens Axboe <axboe@...nel.dk>
To: linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org
Cc: hannes@...xchg.org,
	clm@...a.com,
	linux-kernel@...r.kernel.org,
	willy@...radead.org,
	kirill@...temov.name,
	linux-btrfs@...r.kernel.org,
	linux-ext4@...r.kernel.org,
	linux-xfs@...r.kernel.org,
	bfoster@...hat.com,
	Jens Axboe <axboe@...nel.dk>
Subject: [PATCH 16/17] xfs: flag as supporting FOP_UNCACHED

Read side was already fully supported, and with the write side
appropriately punted to the worker queue, all that's needed now is
setting FOP_UNCACHED in the file_operations structure to enable full
support for read and write uncached IO.

Signed-off-by: Jens Axboe <axboe@...nel.dk>
---
 fs/xfs/xfs_file.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index b19916b11fd5..4fe593896bc5 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -1595,7 +1595,8 @@ const struct file_operations xfs_file_operations = {
 	.fadvise	= xfs_file_fadvise,
 	.remap_file_range = xfs_file_remap_range,
 	.fop_flags	= FOP_MMAP_SYNC | FOP_BUFFER_RASYNC |
-			  FOP_BUFFER_WASYNC | FOP_DIO_PARALLEL_WRITE,
+			  FOP_BUFFER_WASYNC | FOP_DIO_PARALLEL_WRITE |
+			  FOP_UNCACHED,
 };
 
 const struct file_operations xfs_dir_file_operations = {
-- 
2.45.2