From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lukas Czerner Subject: [PATCH 2/4] fs: Prevent doing FALLOC_FL_ZERO_RANGE on append only file Date: Fri, 11 Apr 2014 20:57:43 +0200 Message-ID: <1397242665-2183-2-git-send-email-lczerner@redhat.com> References: <1397242665-2183-1-git-send-email-lczerner@redhat.com> Cc: linux-ext4@vger.kernel.org, xfs@oss.sgi.com, ceph-devel@vger.kernel.org, Lukas Czerner To: linux-fsdevel@vger.kernel.org Return-path: In-Reply-To: <1397242665-2183-1-git-send-email-lczerner@redhat.com> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org 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. Signed-off-by: Lukas Czerner --- fs/open.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/fs/open.c b/fs/open.c index 631aea81..7882ff5 100644 --- a/fs/open.c +++ b/fs/open.c @@ -254,10 +254,11 @@ int do_fallocate(struct file *file, int mode, loff_t offset, loff_t len) return -EBADF; /* - * It's not possible to punch hole or perform collapse range - * on append only file + * It's not possible to punch hole, perform collapse range + * or zero range on append only file */ - if (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE) + if (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE | + FALLOC_FL_ZERO_RANGE) && IS_APPEND(inode)) return -EPERM; -- 1.8.3.1