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| author | Constantine Sapuntzakis <csapuntz@gmail.com> | 2006-06-23 02:06:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 07:43:09 -0700 |
| commit | eefe85ee350ece1bdf3e9a61e941d3394a528660 (patch) | |
| tree | 7ed531a7946a6d715622a7d39be9042c03de961d /drivers/block/loop.c | |
| parent | 98bd34eaf1a7d1f2ed9c4e5d3a9664d3dcdd2159 (diff) | |
| download | linux-stable-eefe85ee350ece1bdf3e9a61e941d3394a528660.tar.gz linux-stable-eefe85ee350ece1bdf3e9a61e941d3394a528660.tar.bz2 linux-stable-eefe85ee350ece1bdf3e9a61e941d3394a528660.zip | |
[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>
Diffstat (limited to 'drivers/block/loop.c')
| -rw-r--r-- | drivers/block/loop.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index 9c3b94e8f03b..3c74ea729fc7 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -818,7 +818,7 @@ static int loop_set_fd(struct loop_device *lo, struct file *lo_file, lo->lo_device = bdev; lo->lo_flags = lo_flags; lo->lo_backing_file = file; - lo->transfer = NULL; + lo->transfer = transfer_none; lo->ioctl = NULL; lo->lo_sizelimit = 0; lo->old_gfp_mask = mapping_gfp_mask(mapping); |