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| author | Lennart Poettering <mzxreary@0pointer.de> | 2020-08-10 19:16:32 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-08-11 07:13:06 -0600 |
| commit | fe6a8fc5ed2f0081f17375ae2005718522c392c6 (patch) | |
| tree | 47948ba52a6da02052a7627a2f91b8c37441d7fb | |
| parent | 905e321e21dc907c0f6ecb20225fde3d5d817422 (diff) | |
| download | linux-fe6a8fc5ed2f0081f17375ae2005718522c392c6.tar.gz linux-fe6a8fc5ed2f0081f17375ae2005718522c392c6.tar.xz | |
loop: unset GENHD_FL_NO_PART_SCAN on LOOP_CONFIGURE
When LOOP_CONFIGURE is used with LO_FLAGS_PARTSCAN we need to propagate
this into the GENHD_FL_NO_PART_SCAN. LOOP_SETSTATUS does this,
LOOP_CONFIGURE doesn't so far. Effect is that setting up a loopback
device with partition scanning doesn't actually work when LOOP_CONFIGURE
is issued, though it works fine with LOOP_SETSTATUS.
Let's correct that and propagate the flag in LOOP_CONFIGURE too.
Fixes: 3448914e8cc5("loop: Add LOOP_CONFIGURE ioctl")
Signed-off-by: Lennart Poettering <lennart@poettering.net>
Acked-by: Martijn Coenen <maco@android.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/block/loop.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/block/loop.c b/drivers/block/loop.c index d18160146226..2f137d6ce169 100644 --- a/drivers/block/loop.c +++ b/drivers/block/loop.c @@ -1171,6 +1171,8 @@ static int loop_configure(struct loop_device *lo, fmode_t mode, if (part_shift) lo->lo_flags |= LO_FLAGS_PARTSCAN; partscan = lo->lo_flags & LO_FLAGS_PARTSCAN; + if (partscan) + lo->lo_disk->flags &= ~GENHD_FL_NO_PART_SCAN; /* Grab the block_device to prevent its destruction after we * put /dev/loopXX inode. Later in __loop_clr_fd() we bdput(bdev). |