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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 28 Jan 2020 10:18:39 -0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 00SAIc0e60096522 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 28 Jan 2020 10:18:39 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D8380AE056; Tue, 28 Jan 2020 10:18:38 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7AC18AE051; Tue, 28 Jan 2020 10:18:36 +0000 (GMT) Received: from dhcp-9-199-158-40.in.ibm.com (unknown [9.199.158.40]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 28 Jan 2020 10:18:36 +0000 (GMT) From: Ritesh Harjani To: jack@suse.cz, tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org Cc: linux-fsdevel@vger.kernel.org, darrick.wong@oracle.com, hch@infradead.org, cmaiolino@redhat.com, Ritesh Harjani Subject: [RFCv2 1/4] ext4: Add IOMAP_F_MERGED for non-extent based mapping Date: Tue, 28 Jan 2020 15:48:25 +0530 X-Mailer: git-send-email 2.21.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 20012810-4275-0000-0000-0000039BA20A X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20012810-4276-0000-0000-000038AFB94E Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-01-28_02:2020-01-24,2020-01-28 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 malwarescore=0 suspectscore=3 mlxscore=0 adultscore=0 bulkscore=0 mlxlogscore=699 priorityscore=1501 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1911200001 definitions=main-2001280083 Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org IOMAP_F_MERGED needs to be set in case of non-extent based mapping. This is also needed for conversion of fiemap to use iomap. Signed-off-by: Ritesh Harjani --- fs/ext4/inode.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index d035acab5b2a..3b4230cf0bc2 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3335,6 +3335,10 @@ static void ext4_set_iomap(struct inode *inode, struct iomap *iomap, iomap->offset = (u64) map->m_lblk << blkbits; iomap->length = (u64) map->m_len << blkbits; + if ((map->m_flags & (EXT4_MAP_UNWRITTEN | EXT4_MAP_MAPPED)) && + !ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) + iomap->flags |= IOMAP_F_MERGED; + /* * Flags passed to ext4_map_blocks() for direct I/O writes can result * in m_flags having both EXT4_MAP_MAPPED and EXT4_MAP_UNWRITTEN bits -- 2.21.0