0790bec522903af7ee7281721e037bee2e8c6284 - linux/kernel/git/dhowells/linux-fs

commit: 0790bec522903af7ee7281721e037bee2e8c6284
[log]
author: David Howells <dhowells@redhat.com>
Thu Oct 14 12:01:23 2021 +0100
committer: David Howells <dhowells@redhat.com>
Mon Oct 18 15:43:57 2021 +0100
tree: 0d1b3892bec5bcf1f986a7f665da580d35068804
parent: 1ef6988c01f3e66a9fe5ec3194cf7d9cd7f08ac6 [diff]

cachefiles: Add 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>

fs/cachefiles/Kconfig[diff]
fs/cachefiles/Makefile[diff]
fs/cachefiles/error_inject.c[Added - diff]
fs/cachefiles/interface.c[diff]
fs/cachefiles/internal.h[diff]
fs/cachefiles/io.c[diff]
fs/cachefiles/main.c[diff]
fs/cachefiles/namei.c[diff]
fs/cachefiles/xattr.c[diff]

9 files changed

tree: 0d1b3892bec5bcf1f986a7f665da580d35068804