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losetup: support ioctl cmd of LOOP_SET_DIRECT_IO
authorMing Lei <tom.leiming@gmail.com>
Tue, 17 Nov 2015 14:32:47 +0000 (22:32 +0800)
committerKarel Zak <kzak@redhat.com>
Thu, 19 Nov 2015 10:27:36 +0000 (11:27 +0100)
commit64c3bb3cb7ead2faa97aa6d400d65f392df3dba8
treec4d0d92ea1f494c3d981d3614b79b1f033f9a75ftree | snapshot
parent710dd492394be6cd2f3dd65c057ae7827ee6e89dcommit | diff
losetup: support ioctl cmd of LOOP_SET_DIRECT_IO

From v4.4, linux kernel starts to support direct I/O and
AIO to backing file for loop driver, so allow losetup to
enable the feature by using LOOP_SET_DIRECT_IO ioctl cmd.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
include/loopdev.h diff | blob | blame | history
lib/loopdev.c diff | blob | blame | history
sys-utils/losetup.c diff | blob | blame | history
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