From: Chengguang Xu <cgxu519@gmx.com>
Date: Thu, 19 Jul 2018 14:15:27 +0000 (+0800)
Subject: ceph: compare fsc->max_file_size and inode->i_size for max file size limit
X-Git-Tag: v4.19~346^2~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9da12e3a7de1665a14063653b60e872da0ee7810;p=platform%2Fkernel%2Flinux-rpi.git

ceph: compare fsc->max_file_size and inode->i_size for max file size limit

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>
---

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index b9cd9d2..141a64c 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1554,6 +1554,7 @@ 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;
 
@@ -1598,7 +1599,7 @@ static loff_t ceph_llseek(struct file *file, loff_t offset, int whence)
 		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);