From: Yan, Zheng <zheng.z.yan@intel.com>
Date: Thu, 26 Jun 2014 07:25:17 +0000 (+0800)
Subject: ceph: check unsupported fallocate mode
X-Git-Tag: v4.14-rc1~7028^2~24
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=494d77bf8fd732f164b91710bd522ee38acb4c2e;p=platform%2Fkernel%2Flinux-rpi.git

ceph: check unsupported fallocate mode

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
---

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 3020851..19af25d 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1177,6 +1177,9 @@ static long ceph_fallocate(struct file *file, int mode,
 	loff_t endoff = 0;
 	loff_t size;
 
+	if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
+		return -EOPNOTSUPP;
+
 	if (!S_ISREG(inode->i_mode))
 		return -EOPNOTSUPP;