The patch titled
drivers/block/loop.c: don't return garbage if LOOP_SET_STATUS not called
has been removed from the -mm tree. Its filename is
drivers-block-loopc-dont-return-garbage-if-loop_set_status-not-called.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: drivers/block/loop.c: don't return garbage if LOOP_SET_STATUS not called
From: "Constantine Sapuntzakis" <csapuntz@xxxxxxxxx>
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@xxxxxxxx>
---
drivers/block/loop.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/block/loop.c~drivers-block-loopc-dont-return-garbage-if-loop_set_status-not-called drivers/block/loop.c
--- a/drivers/block/loop.c~drivers-block-loopc-dont-return-garbage-if-loop_set_status-not-called
+++ a/drivers/block/loop.c
@@ -818,7 +818,7 @@ static int loop_set_fd(struct loop_devic
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);
_
Patches currently in -mm which might be from csapuntz@xxxxxxxxx are
origin.patch
-
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
