| commit | a70f6526267e9f5fbf958a69c6112938b0b14bc4 | [log] [tgz] |
|---|---|---|
| author | David Howells <dhowells@redhat.com> | Thu Oct 21 08:15:26 2021 +0100 |
| committer | David Howells <dhowells@redhat.com> | Fri Jan 07 13:40:56 2022 +0000 |
| tree | b795158ca0ec0b87b96a84efeaf8160baec8d30a | |
| parent | 8390fbc46570dca6f1c7b170f19c612f9ec91a92 [diff] [blame] |
cachefiles: Add some error injection support
Add support for injecting ENOSPC or EIO errors. This needs to be enabled
by CONFIG_CACHEFILES_ERROR_INJECTION=y. Once enabled, ENOSPC on things
like write and mkdir can be triggered by:
echo 1 >/proc/sys/cachefiles/error_injection
and EIO can be triggered on most operations by:
echo 2 >/proc/sys/cachefiles/error_injection
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/163819624706.215744.6911916249119962943.stgit@warthog.procyon.org.uk/ # v1
Link: https://lore.kernel.org/r/163906925343.143852.5465695512984025812.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/163967134412.1823006.7354285948280296595.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/164021532340.640689.18209494225772443698.stgit@warthog.procyon.org.uk/ # v4
diff --git a/fs/cachefiles/Makefile b/fs/cachefiles/Makefile index a7f3e98..183fb5f 100644 --- a/fs/cachefiles/Makefile +++ b/fs/cachefiles/Makefile
@@ -6,4 +6,6 @@ cachefiles-y := \ main.o +cachefiles-$(CONFIG_CACHEFILES_ERROR_INJECTION) += error_inject.o + obj-$(CONFIG_CACHEFILES) := cachefiles.o