From: Chao Yu via Linux-f2fs-devel <linux-f2fs-devel@lists.sourceforge.net>
To: jaegeuk@kernel.org
Cc: Jens Axboe <axboe@kernel.dk>, Qi Han <hanqi@vivo.com>,
linux-kernel@vger.kernel.org,
linux-f2fs-devel@lists.sourceforge.net
Subject: [f2fs-dev] [PATCH v2] f2fs: fix to return -EOPNOTSUPP for uncached write
Date: Tue, 5 Aug 2025 14:19:14 +0800 [thread overview]
Message-ID: <20250805061914.3067747-1-chao@kernel.org> (raw)
f2fs doesn't support uncached write yet, for write() w/ IOCB_DONTCACHE
flag, let's return -EOPNOTSUPP instead of ignoring IOCB_DONTCACHE flag
and write w/o uncached IO.
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Qi Han <hanqi@vivo.com>
Signed-off-by: Chao Yu <chao@kernel.org>
---
v2:
- fix author info
fs/f2fs/file.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 9b8d24097b7a..7f09cad6b6d7 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -5185,6 +5185,11 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
goto out;
}
+ if (iocb->ki_flags & IOCB_DONTCACHE) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
if (!f2fs_is_compress_backend_ready(inode)) {
ret = -EOPNOTSUPP;
goto out;
--
2.49.0
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WARNING: multiple messages have this Message-ID (diff)
From: Chao Yu <chao@kernel.org>
To: jaegeuk@kernel.org
Cc: linux-f2fs-devel@lists.sourceforge.net,
linux-kernel@vger.kernel.org, Chao Yu <chao@kernel.org>,
Jens Axboe <axboe@kernel.dk>, Qi Han <hanqi@vivo.com>
Subject: [PATCH v2] f2fs: fix to return -EOPNOTSUPP for uncached write
Date: Tue, 5 Aug 2025 14:19:14 +0800 [thread overview]
Message-ID: <20250805061914.3067747-1-chao@kernel.org> (raw)
f2fs doesn't support uncached write yet, for write() w/ IOCB_DONTCACHE
flag, let's return -EOPNOTSUPP instead of ignoring IOCB_DONTCACHE flag
and write w/o uncached IO.
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Qi Han <hanqi@vivo.com>
Signed-off-by: Chao Yu <chao@kernel.org>
---
v2:
- fix author info
fs/f2fs/file.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 9b8d24097b7a..7f09cad6b6d7 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -5185,6 +5185,11 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
goto out;
}
+ if (iocb->ki_flags & IOCB_DONTCACHE) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
if (!f2fs_is_compress_backend_ready(inode)) {
ret = -EOPNOTSUPP;
goto out;
--
2.49.0
next reply other threads:[~2025-08-05 6:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-05 6:19 Chao Yu via Linux-f2fs-devel [this message]
2025-08-05 6:19 ` [PATCH v2] f2fs: fix to return -EOPNOTSUPP for uncached write Chao Yu
2025-08-05 15:37 ` [f2fs-dev] " Jens Axboe
2025-08-05 15:37 ` Jens Axboe
2025-08-06 1:51 ` [f2fs-dev] " Chao Yu via Linux-f2fs-devel
2025-08-06 1:51 ` Chao Yu
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