summaryrefslogtreecommitdiffstats
path: root/kernel/kmod.c
diff options
context:
space:
mode:
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2010-01-05 01:04:01 +0100
committerIngo Molnar <mingo@elte.hu>2010-01-13 09:06:06 +0100
commitcba8244a0f1c277b6b1e48ed6504fa434119e24d (patch)
treebecfa7d6f653774f72f411002626e791243e5057 /kernel/kmod.c
parentrcu: Make MAINTAINERS file match new RCU reality (diff)
downloadlinux-cba8244a0f1c277b6b1e48ed6504fa434119e24d.tar.xz
linux-cba8244a0f1c277b6b1e48ed6504fa434119e24d.zip
rcu: Add debug check for too many rcu_read_unlock()
TREE_PREEMPT_RCU maintains an rcu_read_lock_nesting counter in the task structure, which happens to be a signed int. So this patch adds a check for this counter being negative at the end of __rcu_read_unlock(). This check is under CONFIG_PROVE_LOCKING, so can be thought of as being part of lockdep. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: laijs@cn.fujitsu.com Cc: dipankar@in.ibm.com Cc: mathieu.desnoyers@polymtl.ca Cc: josh@joshtriplett.org Cc: dvhltc@us.ibm.com Cc: niv@us.ibm.com Cc: peterz@infradead.org Cc: rostedt@goodmis.org Cc: Valdis.Kletnieks@vt.edu Cc: dhowells@redhat.com LKML-Reference: <12626498423064-git-send-email-> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/kmod.c')
0 files changed, 0 insertions, 0 deletions