diff options
| -rw-r--r-- | fs/f2fs/data.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 6916c1b99..eb13f0e55 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -620,7 +620,12 @@ ssize_t f2fs_preallocate_blocks(struct inode *inode, loff_t pos, size_t count, b ssize_t ret = 0; map.m_lblk = F2FS_BLK_ALIGN(pos); - map.m_len = F2FS_BYTES_TO_BLK(count); + map.m_len = F2FS_BYTES_TO_BLK(pos + count); + if (map.m_len > map.m_lblk) + map.m_len -= map.m_lblk; + else + map.m_len = 0; + map.m_next_pgofs = NULL; if (f2fs_encrypted_inode(inode)) @@ -666,6 +671,9 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, bool allocated = false; block_t blkaddr; + if (!maxblocks) + return 0; + map->m_len = 0; map->m_flags = 0; |