4.14-stable review patch. If anyone has any objections, please let me know.
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From: Chao Yu yuchao0@huawei.com
[ 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 --- fs/f2fs/file.c | 1 + 1 file changed, 1 insertion(+)
--- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -2697,6 +2697,7 @@ static ssize_t f2fs_file_write_iter(stru
err = f2fs_preallocate_blocks(iocb, from); if (err) { + clear_inode_flag(inode, FI_NO_PREALLOC); inode_unlock(inode); return err; }