From 6386722a329824e005c3fd1b4a8cc37db367c76a Mon Sep 17 00:00:00 2001 From: Ritesh Harjani Date: Fri, 28 Feb 2020 14:56:54 +0530 Subject: [PATCH] ext4: add IOMAP_F_MERGED for non-extent based mapping IOMAP_F_MERGED needs to be set in case of non-extent based mapping. This is needed in later patches for conversion of ext4_fiemap to use iomap. Reviewed-by: Darrick J. Wong Reviewed-by: Jan Kara Signed-off-by: Ritesh Harjani Link: https://lore.kernel.org/r/a4764c91c08c16d4d4a4b36defb2a08625b0e9b3.1582880246.git.riteshh@linux.ibm.com Signed-off-by: Theodore Ts'o --- fs/ext4/inode.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 27d009bf183f..db3ba140351e 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3333,6 +3333,10 @@ 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_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