Generic file aio read 함수

@startuml

(*) --> "generic_segment_checks" "generic_segment_checks" --> if "error" then -->[error] (*) endif

"generic_segment_checks" --> if "filp->f_flag 검사" then --> [직접전송] "i_size_read" --> filemap_write_and_wait_range --> generic_file_direct_IO else --> [직접전송 X] "do_generic_file_read" endif

"generic_file_direct_IO" -> "filemap_fdatawrite_range" "filemap_fdatawrite_range" -> "do_writepages" "do_writepages" -> "generic_writepage" "generic_writepage" ->"write_cache_pages" "write_cache_pages" -> "writepage"

@enduml