diff --git a/Makefile b/Makefile
index 10993715abb8..117357188f01 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 4
-SUBLEVEL = 50
+SUBLEVEL = 51
EXTRAVERSION =
NAME = Blurry Fish Butt
diff --git a/arch/arm/lib/getuser.S b/arch/arm/lib/getuser.S
index 8ecfd15c3a02..df73914e81c8 100644
--- a/arch/arm/lib/getuser.S
+++ b/arch/arm/lib/getuser.S
@@ -67,7 +67,7 @@ ENTRY(__get_user_4)
ENDPROC(__get_user_4)
ENTRY(__get_user_8)
- check_uaccess r0, 8, r1, r2, __get_user_bad
+ check_uaccess r0, 8, r1, r2, __get_user_bad8
#ifdef CONFIG_THUMB2_KERNEL
5: TUSER(ldr) r2, [r0]
6: TUSER(ldr) r3, [r0, #4]
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index 7cb2815e815e..a3b96d691ac9 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -1812,7 +1812,7 @@ int drm_dp_update_payload_part1(struct drm_dp_mst_topology_mgr *mgr)
mgr->payloads[i].num_slots = req_payload.num_slots;
} else if (mgr->payloads[i].num_slots) {
mgr->payloads[i].num_slots = 0;
- drm_dp_destroy_payload_step1(mgr, port, port->vcpi.vcpi, &mgr->payloads[i]);
+ drm_dp_destroy_payload_step1(mgr, port, mgr->payloads[i].vcpi, &mgr->payloads[i]);
req_payload.payload_state = mgr->payloads[i].payload_state;
mgr->payloads[i].start_slot = 0;
}
diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c
index 04cec0da5d1e..8901228b5d5d 100644
--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -205,8 +205,8 @@ static int radeon_cursor_move_locked(struct drm_crtc *crtc, int x, int y)
}
if (x <= (crtc->x - w) || y <= (crtc->y - radeon_crtc->cursor_height) ||
- x >= (crtc->x + crtc->mode.crtc_hdisplay) ||
- y >= (crtc->y + crtc->mode.crtc_vdisplay))
+ x >= (crtc->x + crtc->mode.hdisplay) ||
+ y >= (crtc->y + crtc->mode.vdisplay))
goto out_of_bounds;
x += xorigin;
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index d15b33813021..ed1935f300a7 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1232,6 +1232,7 @@ static const struct acpi_device_id elan_acpi_id[] = {
{ "ELAN0000", 0 },
{ "ELAN0100", 0 },
{ "ELAN0600", 0 },
+ { "ELAN0605", 0 },
{ "ELAN1000", 0 },
{ }
};
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 6b420a55c745..c3ea03c9a1a8 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -425,7 +425,7 @@ struct cache {
* until a gc finishes - otherwise we could pointlessly burn a ton of
* cpu
*/
- unsigned invalidate_needs_gc:1;
+ unsigned invalidate_needs_gc;
bool discard; /* Get rid of? */
@@ -593,8 +593,8 @@ struct cache_set {
/* Counts how many sectors bio_insert has added to the cache */
atomic_t sectors_to_gc;
+ wait_queue_head_t gc_wait;
- wait_queue_head_t moving_gc_wait;
struct keybuf moving_gc_keys;
/* Number of moving GC bios in flight */
struct semaphore moving_in_flight;
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 22b9e34ceb75..5b815e64c1c9 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1762,33 +1762,34 @@ static void bch_btree_gc(struct cache_set *c)
bch_moving_gc(c);
}
-static int bch_gc_thread(void *arg)
+static bool gc_should_run(struct cache_set *c)
{
- struct cache_set *c = arg;
struct cache *ca;
unsigned i;
- while (1) {
-again:
- bch_btree_gc(c);
+ for_each_cache(ca, c, i)
+ if (ca->invalidate_needs_gc)
+ return true;
- set_current_state(TASK_INTERRUPTIBLE);
- if (kthread_should_stop())
- break;
+ if (atomic_read(&c->sectors_to_gc) < 0)
+ return true;
- mutex_lock(&c->bucket_lock);
+ return false;
+}
- for_each_cache(ca, c, i)
- if (ca->invalidate_needs_gc) {
- mutex_unlock(&c->bucket_lock);
- set_current_state(TASK_RUNNING);
- goto again;
- }
+static int bch_gc_thread(void *arg)
+{
+ struct cache_set *c = arg;
- mutex_unlock(&c->bucket_lock);
+ while (1) {
+ wait_event_interruptible(c->gc_wait,
+ kthread_should_stop() || gc_should_run(c));
- try_to_freeze();
- schedule();
+ if (kthread_should_stop())
+ break;
+
+ set_gc_sectors(c);
+ bch_btree_gc(c);
}
return 0;
@@ -1796,11 +1797,10 @@ again:
int bch_gc_thread_start(struct cache_set *c)
{
- c->gc_thread = kthread_create(bch_gc_thread, c, "bcache_gc");
+ c->gc_thread = kthread_run(bch_gc_thread, c, "bcache_gc");
if (IS_ERR(c->gc_thread))
return PTR_ERR(c->gc_thread);
- set_task_state(c->gc_thread, TASK_INTERRUPTIBLE);
return 0;
}
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 5c391fa01bed..9b80417cd547 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -260,8 +260,7 @@ void bch_initial_mark_key(struct cache_set *, int, struct bkey *);
static inline void wake_up_gc(struct cache_set *c)
{
- if (c->gc_thread)
- wake_up_process(c->gc_thread);
+ wake_up(&c->gc_wait);
}
#define MAP_DONE 0
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 25fa8445bb24..2410df1c2a05 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -196,10 +196,8 @@ static void bch_data_insert_start(struct closure *cl)
struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
struct bio *bio = op->bio, *n;
- if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0) {
- set_gc_sectors(op->c);
+ if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0)
wake_up_gc(op->c);
- }
if (op->bypass)
return bch_data_invalidate(cl);
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 3d5c0ba13181..7b5880b8874c 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1489,6 +1489,7 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
mutex_init(&c->bucket_lock);
init_waitqueue_head(&c->btree_cache_wait);
init_waitqueue_head(&c->bucket_wait);
+ init_waitqueue_head(&c->gc_wait);
sema_init(&c->uuid_write_mutex, 1);
spin_lock_init(&c->btree_gc_time.lock);
@@ -1547,6 +1548,7 @@ static void run_cache_set(struct cache_set *c)
for_each_cache(ca, c, i)
c->nbuckets += ca->sb.nbuckets;
+ set_gc_sectors(c);
if (CACHE_SYNC(&c->sb)) {
LIST_HEAD(journal);
diff --git a/drivers/media/usb/siano/smsusb.c b/drivers/media/usb/siano/smsusb.c
index c945e4c2fbd4..ec30a004f319 100644
--- a/drivers/media/usb/siano/smsusb.c
+++ b/drivers/media/usb/siano/smsusb.c
@@ -200,22 +200,30 @@ static int smsusb_start_streaming(struct smsusb_device_t *dev)
static int smsusb_sendrequest(void *context, void *buffer, size_t size)
{
struct smsusb_device_t *dev = (struct smsusb_device_t *) context;
- struct sms_msg_hdr *phdr = (struct sms_msg_hdr *) buffer;
- int dummy;
+ struct sms_msg_hdr *phdr;
+ int dummy, ret;
if (dev->state != SMSUSB_ACTIVE) {
pr_debug("Device not active yet\n");
return -ENOENT;
}
+ phdr = kmalloc(size, GFP_KERNEL);
+ if (!phdr)
+ return -ENOMEM;
+ memcpy(phdr, buffer, size);
+
pr_debug("sending %s(%d) size: %d\n",
smscore_translate_msg(phdr->msg_type), phdr->msg_type,
phdr->msg_length);
smsendian_handle_tx_message((struct sms_msg_data *) phdr);
- smsendian_handle_message_header((struct sms_msg_hdr *)buffer);
- return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2),
- buffer, size, &dummy, 1000);
+ smsendian_handle_message_header((struct sms_msg_hdr *)phdr);
+ ret = usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2),
+ phdr, size, &dummy, 1000);
+
+ kfree(phdr);
+ return ret;
}
static char *smsusb1_fw_lkup[] = {
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 78187699467a..79a0c26e1419 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1581,10 +1581,10 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
err = mmc_select_hs400(card);
if (err)
goto free_card;
- } else if (mmc_card_hs(card)) {
+ } else {
/* Select the desired bus width optionally */
err = mmc_select_bus_width(card);
- if (!IS_ERR_VALUE(err)) {
+ if (!IS_ERR_VALUE(err) && mmc_card_hs(card)) {
err = mmc_select_hs_ddr(card);
if (err)
goto free_card;
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 60654d524858..ecc6fb9ca92f 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -1623,7 +1623,7 @@ ntb_transport_create_queue(void *data, struct device *client_dev,
node = dev_to_node(&ndev->dev);
- free_queue = ffs(nt->qp_bitmap);
+ free_queue = ffs(nt->qp_bitmap_free);
if (!free_queue)
goto err;
@@ -2082,9 +2082,8 @@ module_init(ntb_transport_init);
static void __exit ntb_transport_exit(void)
{
- debugfs_remove_recursive(nt_debugfs_dir);
-
ntb_unregister_client(&ntb_transport_client);
bus_unregister(&ntb_transport_bus);
+ debugfs_remove_recursive(nt_debugfs_dir);
}
module_exit(ntb_transport_exit);
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index cf5b99e1f12b..8558e3886960 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1120,7 +1120,8 @@ int scsi_init_io(struct scsi_cmnd *cmd)
bool is_mq = (rq->mq_ctx != NULL);
int error;
- BUG_ON(!rq->nr_phys_segments);
+ if (WARN_ON_ONCE(!rq->nr_phys_segments))
+ return -EINVAL;
error = scsi_init_sgtable(rq, &cmd->sdb);
if (error)
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index a1c29b0afb22..dedcff9cabb5 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1763,6 +1763,10 @@ sg_start_req(Sg_request *srp, unsigned char *cmd)
return res;
iov_iter_truncate(&i, hp->dxfer_len);
+ if (!iov_iter_count(&i)) {
+ kfree(iov);
+ return -EINVAL;
+ }
res = blk_rq_map_user_iov(q, rq, md, &i, GFP_ATOMIC);
kfree(iov);
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 9096d44eb221..d0cf1f010fbe 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -418,6 +418,10 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
static void queue_interrupt(struct fuse_iqueue *fiq, struct fuse_req *req)
{
spin_lock(&fiq->waitq.lock);
+ if (test_bit(FR_FINISHED, &req->flags)) {
+ spin_unlock(&fiq->waitq.lock);
+ return;
+ }
if (list_empty(&req->intr_entry)) {
list_add_tail(&req->intr_entry, &fiq->interrupts);
wake_up_locked(&fiq->waitq);
diff --git a/fs/splice.c b/fs/splice.c
index 0f77e9682857..8398974e1538 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -211,6 +211,7 @@ ssize_t splice_to_pipe(struct pipe_inode_info *pipe,
buf->len = spd->partial[page_nr].len;
buf->private = spd->partial[page_nr].private;
buf->ops = spd->ops;
+ buf->flags = 0;
if (spd->flags & SPLICE_F_GIFT)
buf->flags |= PIPE_BUF_FLAG_GIFT;
diff --git a/kernel/futex.c b/kernel/futex.c
index 9d8163afd87c..9d251dc3ec40 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -3199,4 +3199,4 @@ static int __init futex_init(void)
return 0;
}
-__initcall(futex_init);
+core_initcall(futex_init);
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index c048e34b177f..0b5613554769 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1436,7 +1436,7 @@ static void call_console_drivers(int level,
{
struct console *con;
- trace_console(text, len);
+ trace_console_rcuidle(text, len);
if (level >= console_loglevel && !ignore_loglevel)
return;