linux/fs/pstore
Namhyung Kim 70ad35db33 pstore: Convert console write to use ->write_buf
Maybe I'm missing something, but I don't know why it needs to copy the
input buffer to psinfo->buf and then write.  Instead we can write the
input buffer directly.  The only implementation that supports console
message (i.e. ramoops) already does it for ftrace messages.

For the upcoming virtio backend driver, it needs to protect psinfo->buf
overwritten from console messages.  If it could use ->write_buf method
instead of ->write, the problem will be solved easily.

Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
2016-11-15 16:34:32 -08:00
..
ftrace.c pstore: Use global ftrace filters for function trace filtering 2016-11-15 16:34:30 -08:00
inode.c pstore: Protect unlink with read_mutex 2016-11-15 16:34:31 -08:00
internal.h pstore: Add ftrace timestamp counter 2016-11-15 16:34:27 -08:00
Kconfig pstore: add lzo/lz4 compression support 2016-06-02 10:59:31 -07:00
Makefile pstore: add pstore unregister 2015-10-22 08:59:18 -07:00
platform.c pstore: Convert console write to use ->write_buf 2016-11-15 16:34:32 -08:00
pmsg.c pstore/pmsg: drop bounce buffer 2016-09-08 15:01:10 -07:00
ram_core.c pstore: Allow prz to control need for locking 2016-11-15 16:34:25 -08:00
ram.c pstore: Clarify context field przs as dprzs 2016-11-15 16:34:29 -08:00