From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1BDDC49250B for ; Tue, 19 May 2026 12:41:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779194508; cv=none; b=kpRHXYGCoWWwBeTKwOuujg06Aqoo8kiVTJbF043NT0xLimw8GxX5mEVb2pWiHhK1ijdyb5QnfGGyenAeptK5ZQ6VVl4Khaa94pywjfoj1J0ULnTFXRvkTtdYkOb5MzSIW7XsurJZ4eHPsgJ9RZ7ESe8FaBLPAgcOoQTDqCHCVXs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779194508; c=relaxed/simple; bh=dwP+OXohrTidDbd2EmF4tV6DHPVyn91FNGggTntRht4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=LAal9shZqk+PJYLLKxRpebMZck3pCHlvfDLj6rImi85TMAZJ8jUVwYWO5b6xOYo7avxZeaTGo6+qypVXC9L/1vcXYjxksB1k+jJPH9KvQ5QuJp9gxbOfmaKkUxUNw+wnKVGJMX1/aVTJ9yf1i4gQMg9xVDfidru82JIMoCQ2WOI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=biZzhMCK; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="biZzhMCK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 11C42C2BCB3; Tue, 19 May 2026 12:41:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779194507; bh=dwP+OXohrTidDbd2EmF4tV6DHPVyn91FNGggTntRht4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=biZzhMCKeTCpNQHLJ02HU1EHGJlwLRhpuwrKSGCYfqbE02m3CIm9pQDhXNcombGeT HH3aJqYiVL68/p3Mo/mXfl2c4pUN5MBS1Y3GXRuhYnlJC947LGZXwKxWZ+5rhqTeF+ ZQ3/1rU/tmBEYBm+YP0eeHffuQ6+DE04/X3L8PwSr0GTpa9JEj5+QXd5NfJUl9cAOi U7JhqDu2DA0L7MWVMDdPRzWCPRqo3SLuncMpz0IyvG52wbzzJ8FMF4EPPoDo5+1w1E 1h3tBorvLwkuX9FgAsKJyQcnjw5tarNPGNAPYE/vN8rpxKtEgu83HcTbqIXSI0RF+v XEHU2Yse5N/gA== From: Sasha Levin To: stable@vger.kernel.org Cc: Yongpeng Yang , stable@kernel.org, Chao Yu , Jaegeuk Kim , Sasha Levin Subject: [PATCH 6.12.y] f2fs: fix incorrect file address mapping when inline inode is unwritten Date: Tue, 19 May 2026 08:41:45 -0400 Message-ID: <20260519124145.2443975-1-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <2026051214-racism-litter-8d43@gregkh> References: <2026051214-racism-litter-8d43@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Yongpeng Yang [ Upstream commit 68a0178981a0f493295afa29f8880246e561494c ] When `fileinfo->fi_flags` does not have the `FIEMAP_FLAG_SYNC` bit set and inline data has not been persisted yet, the physical address of the extent is calculated incorrectly for unwritten inline inodes. root@vm:/mnt/f2fs# dd if=/dev/zero of=data.3k bs=3k count=1 root@vm:/mnt/f2fs# f2fs_io fiemap 0 100 data.3k Fiemap: offset = 0 len = 100 logical addr. physical addr. length flags 0 0000000000000000 00000ffffffff16c 0000000000000c00 00000301 This patch fixes the issue by checking if the inode's address is valid. If the inline inode is unwritten, set the physical address to 0 and mark the extent with `FIEMAP_EXTENT_UNKNOWN | FIEMAP_EXTENT_DELALLOC` flags. Cc: stable@kernel.org Fixes: 67f8cf3cee6f ("f2fs: support fiemap for inline_data") Signed-off-by: Yongpeng Yang Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim [ renamed `ifolio` to `ipage` in `inline_data_addr()` and `F2FS_INODE()` calls ] Signed-off-by: Sasha Levin --- fs/f2fs/inline.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/fs/f2fs/inline.c b/fs/f2fs/inline.c index 3b91a95d42764..758ec6d3ae841 100644 --- a/fs/f2fs/inline.c +++ b/fs/f2fs/inline.c @@ -790,7 +790,7 @@ int f2fs_read_inline_dir(struct file *file, struct dir_context *ctx, int f2fs_inline_data_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, __u64 start, __u64 len) { - __u64 byteaddr, ilen; + __u64 byteaddr = 0, ilen; __u32 flags = FIEMAP_EXTENT_DATA_INLINE | FIEMAP_EXTENT_NOT_ALIGNED | FIEMAP_EXTENT_LAST; struct node_info ni; @@ -823,9 +823,14 @@ int f2fs_inline_data_fiemap(struct inode *inode, if (err) goto out; - byteaddr = (__u64)ni.blk_addr << inode->i_sb->s_blocksize_bits; - byteaddr += (char *)inline_data_addr(inode, ipage) - - (char *)F2FS_INODE(ipage); + if (__is_valid_data_blkaddr(ni.blk_addr)) { + byteaddr = (__u64)ni.blk_addr << inode->i_sb->s_blocksize_bits; + byteaddr += (char *)inline_data_addr(inode, ipage) - + (char *)F2FS_INODE(ipage); + } else { + f2fs_bug_on(F2FS_I_SB(inode), ni.blk_addr != NEW_ADDR); + flags |= FIEMAP_EXTENT_DELALLOC | FIEMAP_EXTENT_UNKNOWN; + } err = fiemap_fill_next_extent(fieinfo, start, byteaddr, ilen, flags); trace_f2fs_fiemap(inode, start, byteaddr, ilen, flags, err); out: -- 2.53.0