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raw-posix: implement write_zeroes with MAY_UNMAP for block devices
authorPaolo Bonzini <pbonzini@redhat.com>
Fri, 22 Nov 2013 12:39:56 +0000 (13:39 +0100)
committerStefan Hajnoczi <stefanha@redhat.com>
Tue, 3 Dec 2013 14:26:49 +0000 (15:26 +0100)
commitd0b4503ed2d8713791c38839341b023f78d1a3d9
tree30296ba3080113c377d4e9a3c9a1e060bfbfe93btree
parent260a82e524b7f86c12b8e39d4c3f208af95645f7commit | diff
raw-posix: implement write_zeroes with MAY_UNMAP for block devices

See the next commit for the description of the Linux kernel problem
that is worked around in raw_open_common.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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