Merge 4.9.152 into android-4.9

Changes in 4.9.152
	tty/ldsem: Wake up readers after timed out down_write()
	tty: Hold tty_ldisc_lock() during tty_reopen()
	tty: Simplify tty->count math in tty_reopen()
	tty: Don't hold ldisc lock in tty_reopen() if ldisc present
	can: gw: ensure DLC boundaries after CAN frame modification
	Revert "f2fs: do not recover from previous remained wrong dnodes"
	media: em28xx: Fix misplaced reset of dev->v4l::field_count
	proc: Remove empty line in /proc/self/status
	Revert "scsi: target: iscsi: cxgbit: fix csk leak"
	scsi: target: iscsi: cxgbit: fix csk leak
	arm64/kvm: consistently handle host HCR_EL2 flags
	arm64: Don't trap host pointer auth use to EL2
	ipv6: fix kernel-infoleak in ipv6_local_error()
	net: bridge: fix a bug on using a neighbour cache entry without checking its state
	packet: Do not leak dev refcounts on error exit
	bonding: update nest level on unlink
	ip: on queued skb use skb_header_pointer instead of pskb_may_pull
	crypto: caam - fix zero-length buffer DMA mapping
	crypto: authencesn - Avoid twice completion call in decrypt path
	crypto: authenc - fix parsing key with misaligned rta_len
	btrfs: wait on ordered extents on abort cleanup
	Yama: Check for pid death before checking ancestry
	scsi: core: Synchronize request queue PM status only on successful resume
	scsi: sd: Fix cache_type_store()
	crypto: talitos - reorder code in talitos_edesc_alloc()
	crypto: talitos - fix ablkcipher for CONFIG_VMAP_STACK
	mips: fix n32 compat_ipc_parse_version
	mfd: tps6586x: Handle interrupts on suspend
	arm64: kaslr: ensure randomized quantities are clean to the PoC
	Disable MSI also when pcie-octeon.pcie_disable on
	omap2fb: Fix stack memory disclosure
	media: vivid: fix error handling of kthread_run
	media: vivid: set min width/height to a value > 0
	LSM: Check for NULL cred-security on free
	media: vb2: vb2_mmap: move lock up
	sunrpc: handle ENOMEM in rpcb_getport_async
	netfilter: ebtables: account ebt_table_info to kmemcg
	selinux: fix GPF on invalid policy
	blockdev: Fix livelocks on loop device
	sctp: allocate sctp_sockaddr_entry with kzalloc
	tipc: fix uninit-value in tipc_nl_compat_link_reset_stats
	tipc: fix uninit-value in tipc_nl_compat_bearer_enable
	tipc: fix uninit-value in tipc_nl_compat_link_set
	tipc: fix uninit-value in tipc_nl_compat_name_table_dump
	tipc: fix uninit-value in tipc_nl_compat_doit
	block/loop: Use global lock for ioctl() operation.
	loop: Fold __loop_release into loop_release
	loop: Get rid of loop_index_mutex
	loop: Fix double mutex_unlock(&loop_ctl_mutex) in loop_control_ioctl()
	drm/fb-helper: Ignore the value of fb_var_screeninfo.pixclock
	mm, memcg: fix reclaim deadlock with writeback
	media: vb2: be sure to unlock mutex on errors
	nbd: set the logical and physical blocksize properly
	nbd: Use set_blocksize() to set device blocksize
	Linux 4.9.152

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

3 files changed, 28 insertions, 11 deletions

diff --git a/fs/block_dev.c b/fs/block_dev.c
index cb936c90ae82..8a894cd4875b 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -114,6 +114,20 @@ void invalidate_bdev(struct block_device *bdev)
 }
 EXPORT_SYMBOL(invalidate_bdev);
 
+static void set_init_blocksize(struct block_device *bdev)
+{
+	unsigned bsize = bdev_logical_block_size(bdev);
+	loff_t size = i_size_read(bdev->bd_inode);
+
+	while (bsize < PAGE_SIZE) {
+		if (size & bsize)
+			break;
+		bsize <<= 1;
+	}
+	bdev->bd_block_size = bsize;
+	bdev->bd_inode->i_blkbits = blksize_bits(bsize);
+}
+
 int set_blocksize(struct block_device *bdev, int size)
 {
 	/* Size must be a power of two, and between 512 and PAGE_SIZE */
@@ -1209,18 +1223,9 @@ EXPORT_SYMBOL(check_disk_change);
 
 void bd_set_size(struct block_device *bdev, loff_t size)
 {
-	unsigned bsize = bdev_logical_block_size(bdev);
-
 	inode_lock(bdev->bd_inode);
 	i_size_write(bdev->bd_inode, size);
 	inode_unlock(bdev->bd_inode);
-	while (bsize < PAGE_SIZE) {
-		if (size & bsize)
-			break;
-		bsize <<= 1;
-	}
-	bdev->bd_block_size = bsize;
-	bdev->bd_inode->i_blkbits = blksize_bits(bsize);
 }
 EXPORT_SYMBOL(bd_set_size);
 
@@ -1297,8 +1302,10 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
 				}
 			}
 
-			if (!ret)
+			if (!ret) {
 				bd_set_size(bdev,(loff_t)get_capacity(disk)<<9);
+				set_init_blocksize(bdev);
+			}
 
 			/*
 			 * If the device is invalidated, rescan partition
@@ -1333,6 +1340,7 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part)
 				goto out_clear;
 			}
 			bd_set_size(bdev, (loff_t)bdev->bd_part->nr_sects << 9);
+			set_init_blocksize(bdev);
 		}
 	} else {
 		if (bdev->bd_contains == bdev) {
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 77b32415d9f2..9d3352fe8dc9 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4193,6 +4193,14 @@ static void btrfs_destroy_all_ordered_extents(struct btrfs_fs_info *fs_info)
 		spin_lock(&fs_info->ordered_root_lock);
 	}
 	spin_unlock(&fs_info->ordered_root_lock);
+
+	/*
+	 * We need this here because if we've been flipped read-only we won't
+	 * get sync() from the umount, so we need to make sure any ordered
+	 * extents that haven't had their dirty pages IO start writeout yet
+	 * actually get run and error out properly.
+	 */
+	btrfs_wait_ordered_roots(fs_info, -1, 0, (u64)-1);
 }
 
 static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 94f83e74db24..712b44c63701 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -346,8 +346,9 @@ static inline void task_seccomp(struct seq_file *m, struct task_struct *p)
 {
 #ifdef CONFIG_SECCOMP
 	seq_put_decimal_ull(m, "Seccomp:\t", p->seccomp.mode);
+	seq_putc(m, '\n');
 #endif
-	seq_printf(m, "\nSpeculation_Store_Bypass:\t");
+	seq_printf(m, "Speculation_Store_Bypass:\t");
 	switch (arch_prctl_spec_ctrl_get(p, PR_SPEC_STORE_BYPASS)) {
 	case -EINVAL:
 		seq_printf(m, "unknown");