[PATCH] ext4: fallocate_zero_range, check if is regular file

[jon ernst <jonernst07@xxxxxxxxx>]

fallocate_zero_range, check if inode is regular file.

Signed-off-by: Jon Ernst <jonernst07@xxxxxxxxx>
---
 fs/ext4/extents.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 1bb3e4b..756a3b9 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4742,6 +4742,8 @@ static long ext4_zero_range(struct file *file,
loff_t offset,

    trace_ext4_zero_range(inode, offset, len, mode);

+   if (!S_ISREG(inode->i_mode))
+       return -EOPNOTSUPP;
    /*
     * Write out all dirty pages to avoid race conditions
     * Then release them.
-- 
1.8.1.2
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