From 39d787bec4f792e69e24b11aa3d61ae1c0e4830b Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Fri, 29 Sep 2017 13:59:38 +0800 Subject: f2fs: enhance multiple device flush When multiple device feature is enabled, during ->fsync we will issue flush in all devices to make sure node/data of the file being persisted into storage. But some flushes of device could be unneeded as file's data may be not writebacked into those devices. So this patch adds and manage bitmap per inode in global cache to indicate which device is dirty and it needs to issue flush during ->fsync, hence, we could improve performance of fsync in scenario of multiple device. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/data.c | 1 + 1 file changed, 1 insertion(+) (limited to 'fs/f2fs/data.c') diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index a6288e276ff9..030fb5cf2b51 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1498,6 +1498,7 @@ static int __write_data_page(struct page *page, bool *submitted, int err = 0; struct f2fs_io_info fio = { .sbi = sbi, + .ino = inode->i_ino, .type = DATA, .op = REQ_OP_WRITE, .op_flags = wbc_to_write_flags(wbc), -- cgit v1.2.3