From: Chengguang Xu <cgxu519@gmx.com>
Date: Thu, 19 Jul 2018 22:15:27 +0800
Subject: ceph: compare fsc->max_file_size and inode->i_size for max file size
 limit
Git-commit: 9da12e3a7de1665a14063653b60e872da0ee7810
Patch-mainline: v4.19-rc1
References: FATE#324714

In ceph_llseek(), we compare fsc->max_file_size and inode->i_size to
choose max file size limit.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Acked-by: Luis Henriques <lhenriques@suse.com>
---
 fs/ceph/file.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1514,6 +1514,7 @@ out_unlocked:
 static loff_t ceph_llseek(struct file *file, loff_t offset, int whence)
 {
 	struct inode *inode = file->f_mapping->host;
+	struct ceph_fs_client *fsc = ceph_inode_to_client(inode);
 	loff_t i_size;
 	loff_t ret;
 
@@ -1558,7 +1559,7 @@ static loff_t ceph_llseek(struct file *f
 		break;
 	}
 
-	ret = vfs_setpos(file, offset, inode->i_sb->s_maxbytes);
+	ret = vfs_setpos(file, offset, max(i_size, fsc->max_file_size));
 
 out:
 	inode_unlock(inode);