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(parent: 8d8fb01) | patch
dm cache metadata: fail operations if fail_io mode has been established
authorMike Snitzer <snitzer@redhat.com>
Fri, 5 May 2017 18:40:13 +0000 (14:40 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 25 May 2017 12:30:08 +0000 (14:30 +0200)
commit4a9631ffe5205583800d8bdf9735381f0a09324d
tree2a0fa0bd2e45b01772d34737bfc149437c756e9atree | snapshot (tar.gz zip)
parent8d8fb01a62f22b7430469879ae555a76e544ac4acommit | diff
dm cache metadata: fail operations if fail_io mode has been established

commit 10add84e276432d9dd8044679a1028dd4084117e upstream.

Otherwise it is possible to trigger crashes due to the metadata being
inaccessible yet these methods don't safely account for that possibility
without these checks.

Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/md/dm-cache-metadata.c diff | blob | blame | history