diff options
| author | Chao Yu <yuchao0@huawei.com> | 2017-05-19 18:37:01 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-05-24 07:09:03 +0300 |
| commit | fb830fc5cfc90ba8236921aacb72c6d70bf78af7 (patch) | |
| tree | b4a67924b1df7f03367b6af6b2d795efff91699b /fs/f2fs/f2fs.h | |
| parent | e41e6d75e5010741f01f8aa4f77a5e8a1786652d (diff) | |
| download | linux-fb830fc5cfc90ba8236921aacb72c6d70bf78af7.tar.xz | |
f2fs: introduce io_list for serialize data/node IOs
Serialize data/node IOs by using fifo list instead of mutex lock,
it will help to enhance concurrency of f2fs, meanwhile keeping LFS
IO semantics.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/f2fs.h')
| -rw-r--r-- | fs/f2fs/f2fs.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 093d68a7ae47..cd777cf30be2 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -815,8 +815,10 @@ struct f2fs_io_info { block_t old_blkaddr; /* old block address before Cow */ struct page *page; /* page to be written */ struct page *encrypted_page; /* encrypted page */ + struct list_head list; /* serialize IOs */ bool submitted; /* indicate IO submission */ int need_lock; /* indicate we need to lock cp_rwsem */ + bool in_list; /* indicate fio is in io_list */ }; #define is_read_io(rw) ((rw) == READ) @@ -826,6 +828,8 @@ struct f2fs_bio_info { sector_t last_block_in_bio; /* last block number */ struct f2fs_io_info fio; /* store buffered io info. */ struct rw_semaphore io_rwsem; /* blocking op for bio */ + spinlock_t io_lock; /* serialize DATA/NODE IOs */ + struct list_head io_list; /* track fios */ }; #define FDEV(i) (sbi->devs[i]) @@ -2294,7 +2298,8 @@ void f2fs_replace_block(struct f2fs_sb_info *sbi, struct dnode_of_data *dn, bool recover_newaddr); void allocate_data_block(struct f2fs_sb_info *sbi, struct page *page, block_t old_blkaddr, block_t *new_blkaddr, - struct f2fs_summary *sum, int type); + struct f2fs_summary *sum, int type, + struct f2fs_io_info *fio, bool add_list); void f2fs_wait_on_page_writeback(struct page *page, enum page_type type, bool ordered); void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *sbi, |