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From: Jens Axboe <axboe@kernel.dk>
To: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org
Cc: hannes@cmpxchg.org, clm@meta.com, linux-kernel@vger.kernel.org,
	willy@infradead.org, kirill@shutemov.name,
	linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org,
	linux-xfs@vger.kernel.org, bfoster@redhat.com,
	Jens Axboe <axboe@kernel.dk>
Subject: [PATCH 16/17] xfs: flag as supporting FOP_UNCACHED
Date: Thu, 14 Nov 2024 08:25:20 -0700	[thread overview]
Message-ID: <20241114152743.2381672-18-axboe@kernel.dk> (raw)
In-Reply-To: <20241114152743.2381672-2-axboe@kernel.dk>

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@kernel.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



  parent reply	other threads:[~2024-11-14 15:28 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-14 15:25 [PATCHSET v5 0/17] Uncached buffered IO Jens Axboe
2024-11-14 15:25 ` [PATCH 01/17] mm/filemap: change filemap_create_folio() to take a struct kiocb Jens Axboe
2024-11-14 15:25 ` [PATCH 02/17] mm/readahead: add folio allocation helper Jens Axboe
2024-11-14 15:25 ` [PATCH 03/17] mm: add PG_uncached page flag Jens Axboe
2024-11-14 15:25 ` [PATCH 04/17] mm/readahead: add readahead_control->uncached member Jens Axboe
2024-11-14 15:25 ` [PATCH 05/17] mm/filemap: use page_cache_sync_ra() to kick off read-ahead Jens Axboe
2024-11-14 15:25 ` [PATCH 06/17] mm/truncate: add folio_unmap_invalidate() helper Jens Axboe
2024-11-14 15:25 ` [PATCH 07/17] fs: add RWF_UNCACHED iocb and FOP_UNCACHED file_operations flag Jens Axboe
2024-11-14 15:25 ` [PATCH 08/17] mm/filemap: add read support for RWF_UNCACHED Jens Axboe
2024-11-15  8:49   ` Kirill A. Shutemov
2024-11-15 15:01     ` Jens Axboe
2024-11-14 15:25 ` [PATCH 09/17] mm/filemap: drop uncached pages when writeback completes Jens Axboe
2024-11-14 15:25 ` [PATCH 10/17] mm/filemap: make buffered writes work with RWF_UNCACHED Jens Axboe
2024-11-18  8:42   ` Baokun Li
2024-11-18 14:49     ` Jens Axboe
2024-11-14 15:25 ` [PATCH 11/17] mm/filemap: add filemap_fdatawrite_range_kick() helper Jens Axboe
2024-11-14 15:25 ` [PATCH 12/17] mm: add FGP_UNCACHED folio creation flag Jens Axboe
2024-11-14 15:25 ` [PATCH 13/17] ext4: add RWF_UNCACHED write support Jens Axboe
2024-11-14 15:25 ` [PATCH 14/17] iomap: make buffered writes work with RWF_UNCACHED Jens Axboe
2024-12-12  5:50   ` Christoph Hellwig
2024-12-12  6:26     ` Darrick J. Wong
2024-12-12  6:31       ` Christoph Hellwig
2024-11-14 15:25 ` [PATCH 15/17] xfs: punt uncached write completions to the completion wq Jens Axboe
2024-11-14 15:25 ` Jens Axboe [this message]
2024-11-14 15:25 ` [PATCH 17/17] btrfs: add support for uncached writes Jens Axboe
2024-11-15  4:01 ` [PATCHSET v5 0/17] Uncached buffered IO Julian Sun
2024-11-15 15:06   ` Jens Axboe

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