4.9-stable review patch. If anyone has any objections, please let me know.
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From: Chao Yu yuchao0@huawei.com
[ Upstream commit e5e5732d8120654159254c16834bc8663d8be124 ]
After revoking atomic write, related LBA can be reused by others, so we need to wait page writeback before reusing the LBA, in order to avoid interference between old atomic written in-flight IO and new IO.
Signed-off-by: Chao Yu yuchao0@huawei.com Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/f2fs/segment.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -207,6 +207,8 @@ static int __revoke_inmem_pages(struct i
lock_page(page);
+ f2fs_wait_on_page_writeback(page, DATA, true); + if (recover) { struct dnode_of_data dn; struct node_info ni;