From: Miklos Szeredi <mszeredi@suse.cz>
Date: Mon, 28 Apr 2014 12:19:21 +0000 (+0200)
Subject: fuse: check fallocate mode
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4adb83029de8ef5144a14dbb5c21de0f156c1a03;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

fuse: check fallocate mode

Don't allow new fallocate modes until we figure out what (if anything) that
takes.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 13f8bdec5110..982288a1c6ab 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2972,6 +2972,9 @@ static long fuse_file_fallocate(struct file *file, int mode, loff_t offset,
 	bool lock_inode = !(mode & FALLOC_FL_KEEP_SIZE) ||
 			   (mode & FALLOC_FL_PUNCH_HOLE);
 
+	if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
+		return -EOPNOTSUPP;
+
 	if (fc->no_fallocate)
 		return -EOPNOTSUPP;