projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| c0677e6d ZL |
1 | /* |
| 2 | * fs/ext4/extents_status.h | |
| 3 | * | |
| 4 | * Written by Yongqiang Yang <xiaoqiangnk@gmail.com> | |
| 5 | * Modified by | |
| 6 | * Allison Henderson <achender@linux.vnet.ibm.com> | |
| 7 | * Zheng Liu <wenqing.lz@taobao.com> | |
| 8 | * | |
| 9 | */ | |
| 10 | ||
| 11 | #ifndef _EXT4_EXTENTS_STATUS_H | |
| 12 | #define _EXT4_EXTENTS_STATUS_H | |
| 13 | ||
| 14 | struct extent_status { | |
| 15 | struct rb_node rb_node; | |
| 16 | ext4_lblk_t start; /* first block extent covers */ | |
| 17 | ext4_lblk_t len; /* length of extent in block */ | |
| 18 | }; | |
| 19 | ||
| 20 | struct ext4_es_tree { | |
| 21 | struct rb_root root; | |
| 22 | struct extent_status *cache_es; /* recently accessed extent */ | |
| 23 | }; | |
| 24 | ||
| 25 | #endif /* _EXT4_EXTENTS_STATUS_H */ |