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800d6acf40
When running KASAN with Tiny RCU (e.g. under ARCH=um, where a working KASAN patch is now available), we don't get any information on the original kfree_rcu() (or similar) caller when a problem is reported, as Tiny RCU doesn't record this. Add the recording, which required pulling kvfree_call_rcu() out of line for the KASAN case since the recording function (kasan_record_aux_stack_noalloc) is neither exported, nor can we include kasan.h into rcutiny.h. without KASAN, the patch has no size impact (ARCH=um kernel): text data bss dec hex filename 6151515 4423154 33148520 43723189 29b29b5 linux 6151515 4423154 33148520 43723189 29b29b5 linux + patch with KASAN, the impact on my build was minimal: text data bss dec hex filename 13915539 7388050 33282304 54585893 340ea25 linux 13911266 7392114 33282304 54585684 340e954 linux + patch -4273 +4064 +-0 -209 Acked-by: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> |
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.. | ||
Kconfig | ||
Kconfig.debug | ||
Makefile | ||
rcu.h | ||
rcu_segcblist.c | ||
rcu_segcblist.h | ||
rcuscale.c | ||
rcutorture.c | ||
refscale.c | ||
srcutiny.c | ||
srcutree.c | ||
sync.c | ||
tasks.h | ||
tiny.c | ||
tree.c | ||
tree.h | ||
tree_exp.h | ||
tree_nocb.h | ||
tree_plugin.h | ||
tree_stall.h | ||
update.c |