Open flow
(버전 사이의 차이)
| 1번째 줄: | 1번째 줄: | ||
| − | |||
@startuml | @startuml | ||
(*)-->SYSCALL_DEFINE3(OPEN) | (*)-->SYSCALL_DEFINE3(OPEN) | ||
| − | -->do_sys_open | + | -->do_sys_open |
| − | + | do_sys_open-->getname(filename) | |
| − | + | ||
-->getname_flags | -->getname_flags | ||
| − | + | do_sys_open-->get_unused_flags() | |
-->__alloc_fd | -->__alloc_fd | ||
-->find_next_zero_bit | -->find_next_zero_bit | ||
| − | + | do_sys_open-->do_filp_open | |
-->path_openat | -->path_openat | ||
| − | + | path_openat-->get_empty_filp | |
| − | + | path_openat-->[flag & O_TMPFILE]do_tmpfile | |
| − | + | ||
-->path_lookupat | -->path_lookupat | ||
| − | + | path_lookupat-->path_init | |
| − | + | path_lookupat-->link_path_walk | |
| − | + | path_openat -->path_init | |
| − | + | path_openat -->link_path_walk | |
| − | + | ||
-->walk_component | -->walk_component | ||
| − | + | walk_component-->lookup_fast(nameidata,path,inode) | |
| − | + | walk_component->lookup_slow(nameidata,path) | |
| − | + | path_openat-->do_last | |
| − | + | do_sys_open-->fd_install(fd,f) | |
| − | + | ||
-->__fd_install | -->__fd_install | ||
@enduml | @enduml | ||
| − | |||
2014년 5월 15일 (목) 21:46 판
@startuml (*)-->SYSCALL_DEFINE3(OPEN) -->do_sys_open do_sys_open-->getname(filename) -->getname_flags do_sys_open-->get_unused_flags() -->__alloc_fd -->find_next_zero_bit do_sys_open-->do_filp_open -->path_openat path_openat-->get_empty_filp path_openat-->[flag & O_TMPFILE]do_tmpfile -->path_lookupat path_lookupat-->path_init path_lookupat-->link_path_walk path_openat -->path_init path_openat -->link_path_walk -->walk_component walk_component-->lookup_fast(nameidata,path,inode) walk_component->lookup_slow(nameidata,path) path_openat-->do_last do_sys_open-->fd_install(fd,f) -->__fd_install @enduml
