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([43.153.32.141]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-241e8976f53sm244113645ad.113.2025.08.09.21.48.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 09 Aug 2025 21:48:15 -0700 (PDT) From: alexjlzheng@gmail.com X-Google-Original-From: alexjlzheng@tencent.com To: brauner@kernel.org, djwong@kernel.org Cc: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Jinliang Zheng Subject: [PATCH 2/4] iomap: move iter revert case out of the unwritten branch Date: Sun, 10 Aug 2025 12:48:04 +0800 Message-ID: <20250810044806.3433783-3-alexjlzheng@tencent.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250810044806.3433783-1-alexjlzheng@tencent.com> References: <20250810044806.3433783-1-alexjlzheng@tencent.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Jinliang Zheng This reverts commit e1f453d4336d ("iomap: do some small logical cleanup in buffered write"), for preparetion for the next patches which allow iomap_write_end() return a partial write length. Signed-off-by: Jinliang Zheng --- fs/iomap/buffered-io.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c index 27fa93ca8675..df801220f4b3 100644 --- a/fs/iomap/buffered-io.c +++ b/fs/iomap/buffered-io.c @@ -1019,6 +1019,11 @@ static int iomap_write_iter(struct iomap_iter *iter,= struct iov_iter *i, =20 if (old_size < pos) pagecache_isize_extended(iter->inode, old_size, pos); + if (written < bytes) + iomap_write_failed(iter->inode, pos + written, + bytes - written); + if (unlikely(copied !=3D written)) + iov_iter_revert(i, copied - written); =20 cond_resched(); if (unlikely(written =3D=3D 0)) { @@ -1028,9 +1033,6 @@ static int iomap_write_iter(struct iomap_iter *iter, = struct iov_iter *i, * halfway through, might be a race with munmap, * might be severe memory pressure. */ - iomap_write_failed(iter->inode, pos, bytes); - iov_iter_revert(i, copied); - if (chunk > PAGE_SIZE) chunk /=3D 2; if (copied) { --=20 2.49.0