mark pstore-blk as broken

[ Upstream commit d07f3b081ee632268786601f55e1334d1f68b997 ]

pstore-blk just pokes directly into the pagecache for the block
device without going through the file operations for that by faking
up it's own file operations that do not match the block device ones.

As this breaks the control of the block layer of it's page cache,
and even now just works by accident only the best thing is to just
disable this driver.

Fixes: 17639f67c1d6 ("pstore/blk: Introduce backend for block devices")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210608161327.1537919-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig
index 8adabde685f132f2375114bef345e27db85a9265..328da35da390859dd3687eaed0b078299e1ca33b 100644 (file)
--- a/fs/pstore/Kconfig
+++ b/fs/pstore/Kconfig
@@ -173,6 +173,7 @@ config PSTORE_BLK
        tristate "Log panic/oops to a block device"
        depends on PSTORE
        depends on BLOCK
+       depends on BROKEN
        select PSTORE_ZONE
        default n
        help