Omar Sandoval f31b9c8fe7 UPSTREAM: debugfs: add debugfs_lookup() ... We don't always have easy access to the dentry of a file or directory we created in debugfs. Add a helper which allows us to get a dentry we previously created. The motivation for this change is a problem with blktrace and the blk-mq debugfs entries introduced in 07e4fead45 ("blk-mq: create debugfs directory tree"). Namely, in some cases, the directory that blktrace needs to create may already exist, but in other cases, it may not. We _could_ rely on a bunch of implied knowledge to decide whether to create the directory or not, but it's much cleaner on our end to just look it up. Signed-off-by: Omar Sandoval <osandov@fb.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Jens Axboe <axboe@fb.com> (cherry picked from commit a7c5437b0b) Change-Id: I77b6f2c7df32f904099d23771a53065315cfdc12		2017-07-26 15:07:32 +08:00
..
acpi
asm-generic	Merge branch 'linux-linaro-lsk-v4.4-android' of git://git.linaro.org/kernel/linux-linaro-stable.git	2017-05-06 14:23:00 +08:00
clocksource	arm64: KVM: Implement timer save/restore	2016-11-09 22:15:41 +08:00
crypto	Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android	2017-04-23 12:02:14 +08:00
drm	drm/rockchip: hdmi: Add support for rk3366	2017-07-20 14:38:47 +08:00
dt-bindings	arm: dts: rk3288: add dfi and dmc device nodes	2017-06-29 09:49:17 +08:00
keys
kvm	KVM: arm/arm64: vgic-v3: Make the LR indexing macro public	2016-11-09 22:15:40 +08:00
linux	UPSTREAM: debugfs: add debugfs_lookup()	2017-07-26 15:07:32 +08:00
math-emu
media	isp10: rockchip: v0.1.6	2016-11-29 21:11:43 +08:00
memory
misc
net	Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-android	2017-06-08 12:11:52 +08:00
pcmcia
ras
rdma	RDMA/core: Fix incorrect structure packing for booleans	2017-03-12 06:37:29 +01:00
rxrpc
scsi	scsi: libiscsi: add lock around task lists to fix list corruption regression	2017-03-26 12:13:19 +02:00
soc	soc: rockchip: introduce system status notifier	2017-06-26 17:56:39 +08:00
sound	ASoC: codec: hdmi-codec: add support for audio mode config	2017-04-13 19:19:08 +08:00
target	target: Convert ACL change queue_depth se_session reference usage	2017-05-20 14:26:58 +02:00
trace	LSK 17.06 v4.4-android	2017-07-12 19:35:02 +08:00
uapi	drm/rockchip: add cabc support	2017-07-19 14:34:00 +08:00
video	video: rockchip: screen: add refresh mode for cmd mode screen	2016-10-26 16:54:56 +08:00
xen
Kbuild