[RFC PATCH 08/12] fs: allow char dev to go through fallocate

[Dave Jiang]

Allow a device DAX device to execute fallocate.

Signed-off-by: Dave Jiang <dave.ji...@intel.com>
---
 fs/open.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/open.c b/fs/open.c
index f328622061c5..7f74604566ac 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -322,7 +322,8 @@ int vfs_fallocate(struct file *file, int mode, loff_t 
offset, loff_t len)
        if (S_ISDIR(inode->i_mode))
                return -EISDIR;
 
-       if (!S_ISREG(inode->i_mode) && !S_ISBLK(inode->i_mode))
+       if (!S_ISREG(inode->i_mode) && !S_ISBLK(inode->i_mode) &&
+           !S_ISCHR(inode->i_mode))
                return -ENODEV;
 
        /* Check for wraparound */
-- 
2.53.0