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authorConstantine Sapuntzakis <csapuntz@gmail.com>2006-06-23 02:06:08 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 07:43:09 -0700
commiteefe85ee350ece1bdf3e9a61e941d3394a528660 (patch)
tree7ed531a7946a6d715622a7d39be9042c03de961d /Documentation/sparse.txt
parent98bd34eaf1a7d1f2ed9c4e5d3a9664d3dcdd2159 (diff)
[PATCH] drivers/block/loop.c: don't return garbage if LOOP_SET_STATUS not called
While writing a version of losetup, I ran into the problem that the loop device was returning total garbage. It turns out the problem was that this losetup was only issuing the LOOP_SET_FD ioctl and not issuing a subsequent LOOP_SET_STATUS ioctl. This losetup didn't have any special status to set, so it left out the call. The deeper cause is that loop_set_fd sets the transfer function to NULL, which causes no transfer to happen lo_do_transfer. This patch fixes the problem by setting transfer to transfer_none in loop_set_fd. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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