From fb830fc5cfc90ba8236921aacb72c6d70bf78af7 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Fri, 19 May 2017 23:37:01 +0800 Subject: 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 Signed-off-by: Jaegeuk Kim --- fs/f2fs/super.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'fs/f2fs/super.c') diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index b700766d0cbf..d6af34d1e6a8 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -1983,6 +1983,8 @@ try_onemore: init_rwsem(&sbi->write_io[i][j].io_rwsem); sbi->write_io[i][j].sbi = sbi; sbi->write_io[i][j].bio = NULL; + spin_lock_init(&sbi->write_io[i][j].io_lock); + INIT_LIST_HEAD(&sbi->write_io[i][j].io_list); } } -- cgit