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DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1781343672; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=l9vhqsq5bfyaKJuEZ7vSS3uuF/Bho5vCtA+nLHPqRKk=; b=xXkESVPdFyKZZn6C6OJvt76RiV1y8lHsEnjZCUElMzdTuxcFSOe0ID2yshvdAt4hMuwZD/ OtQnP1QlUKPZCKDgiBflT8ns5FKe0FLIA3se3BymbIYVxyDXabziEg3S1PGukLAfdShziI wz+HIRFPtXuGXkjpMldu70s0gWPY33Y= From: Lance Yang To: willy@infradead.org Cc: akpm@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, hyc.lee@gmail.com, usama.arif@linux.dev, Lance Yang Subject: Re: [PATCH v2 3/6] ntfs: Use zero_user_segment() in handle_bounds_compressed_page() Date: Sat, 13 Jun 2026 17:41:03 +0800 Message-Id: <20260613094103.14051-1-lance.yang@linux.dev> In-Reply-To: <20260608210618.3437216-4-willy@infradead.org> References: <20260608210618.3437216-4-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 98653C0004 X-Rspam-User: X-Stat-Signature: nikzqd17jj79g9izxhxef17f1brw5k1d X-HE-Tag: 1781343675-353260 X-HE-Meta: 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 yQB8+vz5 ybCe1sG/Ffc+4ruSB9GS/4ro44z2OBEhue2viyKx5JkTKbomaod+lyk6iQUbbc4/FmvP9R/30rNU4jz56JKAONVP3HUyZlQCu5Bk6PI06/G97LrKdhv0V//8fVqbp+DwfxtQxwewCQGaX+3Ol5k70EFBPBX856lZv8xtgXp9yvXXL+esNQVMU74PFuaAUaEYmAg3K8mDJVHeV+eZe+vo3RLR0/Xc6yc/hp2nPpvYojjHD9y7VfJQPYqDsez88JlgzuEQCPoMj/3rpKnokubhSILuDAtuCFEQzHqRs+OX6FEVUH233qaiZQ2twToue77TOmzeN+LbSmE5kRCtMim7S3mYm8hT68OMVcn0Jp0EC+oOAtcj3KQXnagqoWe7bx6WVg6aWEUjFNwBfx8g= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Mon, Jun 08, 2026 at 10:06:13PM +0100, Matthew Wilcox (Oracle) wrote: >This fixes handle_bounds_compressed_page() on highmem memory >as page_address() does not work on memory which has been kmap_local(), >only on kmap() memory. > >Signed-off-by: Matthew Wilcox (Oracle) >--- > fs/ntfs/compress.c | 18 ++++++++---------- > 1 file changed, 8 insertions(+), 10 deletions(-) > >diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c Just a thought. This file still seems to have a few more page_address() users where the kmap_local_page() return value is not used. Should the rest of them be cleaned up in this series too? Cheers, Lance