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path: root/flowtop/Makefile
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flowtop-libs =	-lurcu \
		-lnetfilter_conntrack \
		$(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) $(PKG_CONFIG) --libs ncurses 2> /dev/null \
			|| echo '-lncurses') \
		$(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) $(PKG_CONFIG) --libs tinfo 2> /dev/null ) \
		-lpthread

ifeq ($(CONFIG_GEOIP), 1)
flowtop-libs +=	-lGeoIP \
		-lz
endif

flowtop-objs =	xmalloc.o \
		str.o \
		sig.o \
		sock.o \
		proc.o \
		dev.o \
		link.o \
		hash.o \
		lookup.o \
		screen.o \
		die.o \
		sysctl.o \
		ui.o \
		flowtop.o

ifeq ($(CONFIG_GEOIP), 1)
flowtop-objs +=	geoip.o \
		ioops.o
endif

flowtop-eflags = $(shell $(PKG_CONFIG) --cflags ncurses) \
                 $(shell $(PKG_CONFIG) --cflags libnetfilter_conntrack)

flowtop-confs =	tcp.conf \
		udp.conf \
		geoip.conf
d3d2172394e23d585d6'>add7c65ca426b7a37184dd3d2172394e23d585d6 (patch) tree28b08b519540041b06ed0ab0b1c005076b932e8e /tools/lib/lockdep/common.c parent75422726b0f717d67db3283c2eb5bc14fa2619c5 (diff)
pid: fix lockdep deadlock warning due to ucount_lock
========================================================= [ INFO: possible irq lock inversion dependency detected ] 4.10.0-rc2-00024-g4aecec9-dirty #118 Tainted: G W --------------------------------------------------------- swapper/1/0 just changed the state of lock: (&(&sighand->siglock)->rlock){-.....}, at: [<ffffffffbd0a1bc6>] __lock_task_sighand+0xb6/0x2c0 but this lock took another, HARDIRQ-unsafe lock in the past: (ucounts_lock){+.+...} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Chain exists of: &(&sighand->siglock)->rlock --> &(&tty->ctrl_lock)->rlock --> ucounts_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(ucounts_lock); local_irq_disable(); lock(&(&sighand->siglock)->rlock); lock(&(&tty->ctrl_lock)->rlock); <Interrupt> lock(&(&sighand->siglock)->rlock); *** DEADLOCK *** This patch removes a dependency between rlock and ucount_lock. Fixes: f333c700c610 ("pidns: Add a limit on the number of pid namespaces") Cc: stable@vger.kernel.org Signed-off-by: Andrei Vagin <avagin@openvz.org> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'tools/lib/lockdep/common.c')