From: Chao Yu <yuchao0@huawei.com>
Date: Mon, 13 Nov 2017 09:32:39 +0000 (+0800)
Subject: f2fs: fix to clear FI_NO_PREALLOC
X-Git-Tag: v4.14.6~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a76d81af17ceadd8bae46da297d8e24dd8ea0838;p=platform%2Fkernel%2Flinux-rpi.git

f2fs: fix to clear FI_NO_PREALLOC


[ Upstream commit 28cfafb73853f0494b06649716687a3ea07681d5 ]

We need to clear FI_NO_PREALLOC flag in error path of f2fs_file_write_iter,
otherwise we will lose the chance to preallocate blocks in latter write()
at one time.

Fixes: dc91de78e5e1 ("f2fs: do not preallocate blocks which has wrong buffer")
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 6ce4678..b837209 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -2697,6 +2697,7 @@ static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 
 		err = f2fs_preallocate_blocks(iocb, from);
 		if (err) {
+			clear_inode_flag(inode, FI_NO_PREALLOC);
 			inode_unlock(inode);
 			return err;
 		}