linux-kernel - [PATCH 0/2] Add FALLOC_FL_ZERO

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Message-Id: <1339515364-17374-1-git-send-email-pbonzini@redhat.com>
Date:	Tue, 12 Jun 2012 17:36:02 +0200
From:	Paolo Bonzini <pbonzini@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Al Viro <viro@...iv.linux.org.uk>, xfs@....sgi.com,
	linux-fsdevel@...r.kernel.org
Subject: [PATCH 0/2] Add FALLOC_FL_ZERO_RANGE to fallocate

This patch adds the FALLOC_FL_ZERO_RANGE operation mode to fallocate,
resembling the similar XFS ioctl.  The new mode can be used with
or without FALLOC_FL_KEEP_SIZE, but of course not together with
FALLOC_FL_PUNCH_HOLE.

Other filesystems can then provide the same functionality with a
standard system call.

Paolo
---
 fs/open.c              |    8 +++++++-
 fs/xfs/xfs_file.c      |   34 +++++++++++++++++++++++-----------
 include/linux/falloc.h |    1 +
 3 files changed, 32 insertions(+), 13 deletions(-)

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