diff options
| -rw-r--r-- | fs/f2fs/data.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 017c9746a705..86585c0922f2 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -4153,20 +4153,24 @@ static int f2fs_iomap_begin(struct inode *inode, loff_t offset, loff_t length, */ map.m_len = fscrypt_limit_io_blocks(inode, map.m_lblk, map.m_len); - if (map.m_flags & (F2FS_MAP_MAPPED | F2FS_MAP_UNWRITTEN)) { - iomap->length = blks_to_bytes(inode, map.m_len); - if (map.m_flags & F2FS_MAP_MAPPED) { - iomap->type = IOMAP_MAPPED; - iomap->flags |= IOMAP_F_MERGED; - } else { - iomap->type = IOMAP_UNWRITTEN; - } - if (WARN_ON_ONCE(!__is_valid_data_blkaddr(map.m_pblk))) - return -EINVAL; + /* + * We should never see delalloc or compressed extents here based on + * prior flushing and checks. + */ + if (WARN_ON_ONCE(map.m_pblk == NEW_ADDR)) + return -EINVAL; + if (WARN_ON_ONCE(map.m_pblk == COMPRESS_ADDR)) + return -EINVAL; + if (map.m_pblk != NULL_ADDR) { + iomap->length = blks_to_bytes(inode, map.m_len); + iomap->type = IOMAP_MAPPED; + iomap->flags |= IOMAP_F_MERGED; iomap->bdev = map.m_bdev; iomap->addr = blks_to_bytes(inode, map.m_pblk); } else { + if (flags & IOMAP_WRITE) + return -ENOTBLK; iomap->length = blks_to_bytes(inode, next_pgofs) - iomap->offset; iomap->type = IOMAP_HOLE; |