Commit 77ba7f02 authored Mar 05, 2017 by Kees Cook Committed by Greg Kroah-Hartman Aug 11, 2017

pstore: Use dynamic spinlock initializer

commit e9a330c4289f2ba1ca4bf98c2b430ab165a8931b upstream.

The per-prz spinlock should be using the dynamic initializer so that
lockdep can correctly track it. Without this, under lockdep, we get a
warning at boot that the lock is in non-static memory.

Fixes: 109704492ef6 ("pstore: Make spinlock per zone instead of global")
Fixes: 76d5692a5803 ("pstore: Correctly initialize spinlock and flags")
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 78bfdaab

fs/pstore/ram_core.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -528,7 +528,7 @@ struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
		}

		/* Initialize general buffer state. */
		prz->buffer_lock = __RAW_SPIN_LOCK_UNLOCKED(buffer_lock);
		raw_spin_lock_init(&prz->buffer_lock);
		prz->flags = flags;

		ret = persistent_ram_buffer_map(start, size, prz, memtype);