From 8fc61d92630d1c96057a94c61e1643475045b25b Mon Sep 17 00:00:00 2001
From: Lukas Czerner <lczerner@redhat.com>
Date: Sat, 12 Apr 2014 09:51:34 -0400
Subject: [PATCH] fs: prevent doing FALLOC_FL_ZERO_RANGE on append only file

Currently punch hole and collapse range fallocate operation are not
allowed on append only file. This should be case for zero range as well.
Fix it by allowing only pure fallocate (possibly with keep size set).

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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