--- /dev/null
+From 961ae1d83d055a4b9ebbfb4cc8ca62ec1a7a3b74 Mon Sep 17 00:00:00 2001
+From: Andreas Gruenbacher <agruenba@redhat.com>
+Date: Fri, 7 Jul 2017 13:22:05 -0500
+Subject: gfs2: Fix glock rhashtable rcu bug
+
+From: Andreas Gruenbacher <agruenba@redhat.com>
+
+commit 961ae1d83d055a4b9ebbfb4cc8ca62ec1a7a3b74 upstream.
+
+Before commit 88ffbf3e03 "GFS2: Use resizable hash table for glocks",
+glocks were freed via call_rcu to allow reading the glock hashtable
+locklessly using rcu. This was then changed to free glocks immediately,
+which made reading the glock hashtable unsafe. Bring back the original
+code for freeing glocks via call_rcu.
+
+Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
+Signed-off-by: Bob Peterson <rpeterso@redhat.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ fs/gfs2/glock.c | 11 +++++++++--
+ fs/gfs2/incore.h | 1 +
+ 2 files changed, 10 insertions(+), 2 deletions(-)
+
+--- a/fs/gfs2/glock.c
++++ b/fs/gfs2/glock.c
+@@ -80,9 +80,9 @@ static struct rhashtable_params ht_parms
+
+ static struct rhashtable gl_hash_table;
+
+-void gfs2_glock_free(struct gfs2_glock *gl)
++static void gfs2_glock_dealloc(struct rcu_head *rcu)
+ {
+- struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
++ struct gfs2_glock *gl = container_of(rcu, struct gfs2_glock, gl_rcu);
+
+ if (gl->gl_ops->go_flags & GLOF_ASPACE) {
+ kmem_cache_free(gfs2_glock_aspace_cachep, gl);
+@@ -90,6 +90,13 @@ void gfs2_glock_free(struct gfs2_glock *
+ kfree(gl->gl_lksb.sb_lvbptr);
+ kmem_cache_free(gfs2_glock_cachep, gl);
+ }
++}
++
++void gfs2_glock_free(struct gfs2_glock *gl)
++{
++ struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
++
++ call_rcu(&gl->gl_rcu, gfs2_glock_dealloc);
+ if (atomic_dec_and_test(&sdp->sd_glock_disposal))
+ wake_up(&sdp->sd_glock_wait);
+ }
+--- a/fs/gfs2/incore.h
++++ b/fs/gfs2/incore.h
+@@ -367,6 +367,7 @@ struct gfs2_glock {
+ loff_t end;
+ } gl_vm;
+ };
++ struct rcu_head gl_rcu;
+ struct rhash_head gl_node;
+ };
+
pinctrl-sunxi-fix-spdif-function-name-for-a83t.patch
pinctrl-mxs-atomically-switch-mux-and-drive-strength-config.patch
pinctrl-sh-pfc-update-info-pointer-after-soc-specific-init.patch
+usb-serial-option-add-two-longcheer-device-ids.patch
+usb-serial-qcserial-new-sierra-wireless-em7305-device-id.patch
+gfs2-fix-glock-rhashtable-rcu-bug.patch
--- /dev/null
+From 8fb060da715ad10fe956d7c0077b2fb0c12bb9d7 Mon Sep 17 00:00:00 2001
+From: Johan Hovold <johan@kernel.org>
+Date: Mon, 12 Jun 2017 16:30:16 +0200
+Subject: USB: serial: option: add two Longcheer device ids
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Johan Hovold <johan@kernel.org>
+
+commit 8fb060da715ad10fe956d7c0077b2fb0c12bb9d7 upstream.
+
+Add two Longcheer device-id entries which specifically enables a
+Telewell TW-3G HSPA+ branded modem (0x9801).
+
+Reported-by: Teemu Likonen <tlikonen@iki.fi>
+Reported-by: Bjørn Mork <bjorn@mork.no>
+Reported-by: Lars Melin <larsm17@gmail.com>
+Tested-by: Teemu Likonen <tlikonen@iki.fi>
+Signed-off-by: Johan Hovold <johan@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/usb/serial/option.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/usb/serial/option.c
++++ b/drivers/usb/serial/option.c
+@@ -1877,6 +1877,10 @@ static const struct usb_device_id option
+ .driver_info = (kernel_ulong_t)&four_g_w100_blacklist
+ },
+ { USB_DEVICE_INTERFACE_CLASS(LONGCHEER_VENDOR_ID, SPEEDUP_PRODUCT_SU9800, 0xff) },
++ { USB_DEVICE_INTERFACE_CLASS(LONGCHEER_VENDOR_ID, 0x9801, 0xff),
++ .driver_info = (kernel_ulong_t)&net_intf3_blacklist },
++ { USB_DEVICE_INTERFACE_CLASS(LONGCHEER_VENDOR_ID, 0x9803, 0xff),
++ .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
+ { USB_DEVICE(LONGCHEER_VENDOR_ID, ZOOM_PRODUCT_4597) },
+ { USB_DEVICE(LONGCHEER_VENDOR_ID, IBALL_3_5G_CONNECT) },
+ { USB_DEVICE(HAIER_VENDOR_ID, HAIER_PRODUCT_CE100) },
--- /dev/null
+From 996fab55d864ed604158f71724ff52db1c2454a3 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>
+Date: Tue, 13 Jun 2017 19:11:42 +0200
+Subject: USB: serial: qcserial: new Sierra Wireless EM7305 device ID
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Bjørn Mork <bjorn@mork.no>
+
+commit 996fab55d864ed604158f71724ff52db1c2454a3 upstream.
+
+A new Sierra Wireless EM7305 device ID used in a Toshiba laptop.
+
+Reported-by: Petr Kloc <petr_kloc@yahoo.com>
+Signed-off-by: Bjørn Mork <bjorn@mork.no>
+Signed-off-by: Johan Hovold <johan@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/usb/serial/qcserial.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/usb/serial/qcserial.c
++++ b/drivers/usb/serial/qcserial.c
+@@ -158,6 +158,7 @@ static const struct usb_device_id id_tab
+ {DEVICE_SWI(0x1199, 0x9056)}, /* Sierra Wireless Modem */
+ {DEVICE_SWI(0x1199, 0x9060)}, /* Sierra Wireless Modem */
+ {DEVICE_SWI(0x1199, 0x9061)}, /* Sierra Wireless Modem */
++ {DEVICE_SWI(0x1199, 0x9063)}, /* Sierra Wireless EM7305 */
+ {DEVICE_SWI(0x1199, 0x9070)}, /* Sierra Wireless MC74xx */
+ {DEVICE_SWI(0x1199, 0x9071)}, /* Sierra Wireless MC74xx */
+ {DEVICE_SWI(0x1199, 0x9078)}, /* Sierra Wireless EM74xx */
projects / thirdparty / kernel / stable-queue.git / commitdiff
