[gentoo-commits] proj/linux-patches:4.4 commit in: /

["Mike Pagano" <mpagano@gentoo.org>]

commit:     76c5fbb16e325e55281e54aa20ceca47629ecada
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Mon May  8 10:40:25 2017 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Mon May  8 10:40:25 2017 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=76c5fbb1

Linux patch 4.4.67

 0000_README             |   4 +
 1066_linux-4.4.67.patch | 948 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 952 insertions(+)

diff --git a/0000_README b/0000_README
index d08d290..dd02f06 100644
--- a/0000_README
+++ b/0000_README
@@ -307,6 +307,10 @@ Patch:  1065_linux-4.4.66.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.4.66
 
+Patch:  1066_linux-4.4.67.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.4.67
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1066_linux-4.4.67.patch b/1066_linux-4.4.67.patch
new file mode 100644
index 0000000..aafd894
--- /dev/null
+++ b/1066_linux-4.4.67.patch
@@ -0,0 +1,948 @@
+diff --git a/Makefile b/Makefile
+index 1cd052823c03..c987902ae1ee 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 4
+-SUBLEVEL = 66
++SUBLEVEL = 67
+ EXTRAVERSION =
+ NAME = Blurry Fish Butt
+ 
+diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c
+index 9462d2752850..8bdc34dbaedf 100644
+--- a/drivers/block/drbd/drbd_bitmap.c
++++ b/drivers/block/drbd/drbd_bitmap.c
+@@ -479,8 +479,14 @@ void drbd_bm_cleanup(struct drbd_device *device)
+  * this masks out the remaining bits.
+  * Returns the number of bits cleared.
+  */
++#ifndef BITS_PER_PAGE
+ #define BITS_PER_PAGE		(1UL << (PAGE_SHIFT + 3))
+ #define BITS_PER_PAGE_MASK	(BITS_PER_PAGE - 1)
++#else
++# if BITS_PER_PAGE != (1UL << (PAGE_SHIFT + 3))
++#  error "ambiguous BITS_PER_PAGE"
++# endif
++#endif
+ #define BITS_PER_LONG_MASK	(BITS_PER_LONG - 1)
+ static int bm_clear_surplus(struct drbd_bitmap *b)
+ {
+diff --git a/drivers/infiniband/hw/qib/qib_qp.c b/drivers/infiniband/hw/qib/qib_qp.c
+index 3eff35c2d453..2684605fe67f 100644
+--- a/drivers/infiniband/hw/qib/qib_qp.c
++++ b/drivers/infiniband/hw/qib/qib_qp.c
+@@ -41,13 +41,13 @@
+ 
+ #include "qib.h"
+ 
+-#define BITS_PER_PAGE           (PAGE_SIZE*BITS_PER_BYTE)
+-#define BITS_PER_PAGE_MASK      (BITS_PER_PAGE-1)
++#define RVT_BITS_PER_PAGE           (PAGE_SIZE*BITS_PER_BYTE)
++#define RVT_BITS_PER_PAGE_MASK      (RVT_BITS_PER_PAGE-1)
+ 
+ static inline unsigned mk_qpn(struct qib_qpn_table *qpt,
+ 			      struct qpn_map *map, unsigned off)
+ {
+-	return (map - qpt->map) * BITS_PER_PAGE + off;
++	return (map - qpt->map) * RVT_BITS_PER_PAGE + off;
+ }
+ 
+ static inline unsigned find_next_offset(struct qib_qpn_table *qpt,
+@@ -59,7 +59,7 @@ static inline unsigned find_next_offset(struct qib_qpn_table *qpt,
+ 		if (((off & qpt->mask) >> 1) >= n)
+ 			off = (off | qpt->mask) + 2;
+ 	} else
+-		off = find_next_zero_bit(map->page, BITS_PER_PAGE, off);
++		off = find_next_zero_bit(map->page, RVT_BITS_PER_PAGE, off);
+ 	return off;
+ }
+ 
+@@ -147,8 +147,8 @@ static int alloc_qpn(struct qib_devdata *dd, struct qib_qpn_table *qpt,
+ 		qpn = 2;
+ 	if (qpt->mask && ((qpn & qpt->mask) >> 1) >= dd->n_krcv_queues)
+ 		qpn = (qpn | qpt->mask) + 2;
+-	offset = qpn & BITS_PER_PAGE_MASK;
+-	map = &qpt->map[qpn / BITS_PER_PAGE];
++	offset = qpn & RVT_BITS_PER_PAGE_MASK;
++	map = &qpt->map[qpn / RVT_BITS_PER_PAGE];
+ 	max_scan = qpt->nmaps - !offset;
+ 	for (i = 0;;) {
+ 		if (unlikely(!map->page)) {
+@@ -173,7 +173,7 @@ static int alloc_qpn(struct qib_devdata *dd, struct qib_qpn_table *qpt,
+ 			 * We just need to be sure we don't loop
+ 			 * forever.
+ 			 */
+-		} while (offset < BITS_PER_PAGE && qpn < QPN_MAX);
++		} while (offset < RVT_BITS_PER_PAGE && qpn < QPN_MAX);
+ 		/*
+ 		 * In order to keep the number of pages allocated to a
+ 		 * minimum, we scan the all existing pages before increasing
+@@ -204,9 +204,9 @@ static void free_qpn(struct qib_qpn_table *qpt, u32 qpn)
+ {
+ 	struct qpn_map *map;
+ 
+-	map = qpt->map + qpn / BITS_PER_PAGE;
++	map = qpt->map + qpn / RVT_BITS_PER_PAGE;
+ 	if (map->page)
+-		clear_bit(qpn & BITS_PER_PAGE_MASK, map->page);
++		clear_bit(qpn & RVT_BITS_PER_PAGE_MASK, map->page);
+ }
+ 
+ static inline unsigned qpn_hash(struct qib_ibdev *dev, u32 qpn)
+diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
+index 80a439543259..e503279c34fc 100644
+--- a/drivers/md/dm-ioctl.c
++++ b/drivers/md/dm-ioctl.c
+@@ -1843,7 +1843,7 @@ static int ctl_ioctl(uint command, struct dm_ioctl __user *user)
+ 	if (r)
+ 		goto out;
+ 
+-	param->data_size = sizeof(*param);
++	param->data_size = offsetof(struct dm_ioctl, data);
+ 	r = fn(param, input_param_size);
+ 
+ 	if (unlikely(param->flags & DM_BUFFER_FULL_FLAG) &&
+diff --git a/drivers/mtd/chips/Kconfig b/drivers/mtd/chips/Kconfig
+index 54479c481a7a..8a25adced79f 100644
+--- a/drivers/mtd/chips/Kconfig
++++ b/drivers/mtd/chips/Kconfig
+@@ -111,6 +111,7 @@ config MTD_MAP_BANK_WIDTH_16
+ 
+ config MTD_MAP_BANK_WIDTH_32
+ 	bool "Support 256-bit buswidth" if MTD_CFI_GEOMETRY
++	select MTD_COMPLEX_MAPPINGS if HAS_IOMEM
+ 	default n
+ 	help
+ 	  If you wish to support CFI devices on a physical bus which is
+diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
+index 49056c33be74..21e5b9ed1ead 100644
+--- a/drivers/net/ethernet/broadcom/tg3.c
++++ b/drivers/net/ethernet/broadcom/tg3.c
+@@ -12031,7 +12031,7 @@ static int tg3_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
+ 	int ret;
+ 	u32 offset, len, b_offset, odd_len;
+ 	u8 *buf;
+-	__be32 start, end;
++	__be32 start = 0, end;
+ 
+ 	if (tg3_flag(tp, NO_NVRAM) ||
+ 	    eeprom->magic != TG3_EEPROM_MAGIC)
+diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
+index 2882bcac918a..0b096730c72a 100644
+--- a/drivers/scsi/cxlflash/main.c
++++ b/drivers/scsi/cxlflash/main.c
+@@ -996,6 +996,8 @@ static int wait_port_online(__be64 __iomem *fc_regs, u32 delay_us, u32 nretry)
+ 	do {
+ 		msleep(delay_us / 1000);
+ 		status = readq_be(&fc_regs[FC_MTIP_STATUS / 8]);
++		if (status == U64_MAX)
++			nretry /= 2;
+ 	} while ((status & FC_MTIP_STATUS_MASK) != FC_MTIP_STATUS_ONLINE &&
+ 		 nretry--);
+ 
+@@ -1027,6 +1029,8 @@ static int wait_port_offline(__be64 __iomem *fc_regs, u32 delay_us, u32 nretry)
+ 	do {
+ 		msleep(delay_us / 1000);
+ 		status = readq_be(&fc_regs[FC_MTIP_STATUS / 8]);
++		if (status == U64_MAX)
++			nretry /= 2;
+ 	} while ((status & FC_MTIP_STATUS_MASK) != FC_MTIP_STATUS_OFFLINE &&
+ 		 nretry--);
+ 
+@@ -1137,7 +1141,7 @@ static const struct asyc_intr_info ainfo[] = {
+ 	{SISL_ASTATUS_FC0_LOGI_F, "login failed", 0, CLR_FC_ERROR},
+ 	{SISL_ASTATUS_FC0_LOGI_S, "login succeeded", 0, SCAN_HOST},
+ 	{SISL_ASTATUS_FC0_LINK_DN, "link down", 0, 0},
+-	{SISL_ASTATUS_FC0_LINK_UP, "link up", 0, SCAN_HOST},
++	{SISL_ASTATUS_FC0_LINK_UP, "link up", 0, 0},
+ 	{SISL_ASTATUS_FC1_OTHER, "other error", 1, CLR_FC_ERROR | LINK_RESET},
+ 	{SISL_ASTATUS_FC1_LOGO, "target initiated LOGO", 1, 0},
+ 	{SISL_ASTATUS_FC1_CRC_T, "CRC threshold exceeded", 1, LINK_RESET},
+@@ -1145,7 +1149,7 @@ static const struct asyc_intr_info ainfo[] = {
+ 	{SISL_ASTATUS_FC1_LOGI_F, "login failed", 1, CLR_FC_ERROR},
+ 	{SISL_ASTATUS_FC1_LOGI_S, "login succeeded", 1, SCAN_HOST},
+ 	{SISL_ASTATUS_FC1_LINK_DN, "link down", 1, 0},
+-	{SISL_ASTATUS_FC1_LINK_UP, "link up", 1, SCAN_HOST},
++	{SISL_ASTATUS_FC1_LINK_UP, "link up", 1, 0},
+ 	{0x0, "", 0, 0}		/* terminator */
+ };
+ 
+@@ -1962,6 +1966,11 @@ retry:
+  * cxlflash_eh_host_reset_handler() - reset the host adapter
+  * @scp:	SCSI command from stack identifying host.
+  *
++ * Following a reset, the state is evaluated again in case an EEH occurred
++ * during the reset. In such a scenario, the host reset will either yield
++ * until the EEH recovery is complete or return success or failure based
++ * upon the current device state.
++ *
+  * Return:
+  *	SUCCESS as defined in scsi/scsi.h
+  *	FAILED as defined in scsi/scsi.h
+@@ -1993,7 +2002,8 @@ static int cxlflash_eh_host_reset_handler(struct scsi_cmnd *scp)
+ 		} else
+ 			cfg->state = STATE_NORMAL;
+ 		wake_up_all(&cfg->reset_waitq);
+-		break;
++		ssleep(1);
++		/* fall through */
+ 	case STATE_RESET:
+ 		wait_event(cfg->reset_waitq, cfg->state != STATE_RESET);
+ 		if (cfg->state == STATE_NORMAL)
+@@ -2534,6 +2544,9 @@ static void drain_ioctls(struct cxlflash_cfg *cfg)
+  * @pdev:	PCI device struct.
+  * @state:	PCI channel state.
+  *
++ * When an EEH occurs during an active reset, wait until the reset is
++ * complete and then take action based upon the device state.
++ *
+  * Return: PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
+  */
+ static pci_ers_result_t cxlflash_pci_error_detected(struct pci_dev *pdev,
+@@ -2547,6 +2560,10 @@ static pci_ers_result_t cxlflash_pci_error_detected(struct pci_dev *pdev,
+ 
+ 	switch (state) {
+ 	case pci_channel_io_frozen:
++		wait_event(cfg->reset_waitq, cfg->state != STATE_RESET);
++		if (cfg->state == STATE_FAILTERM)
++			return PCI_ERS_RESULT_DISCONNECT;
++
+ 		cfg->state = STATE_RESET;
+ 		scsi_block_requests(cfg->host);
+ 		drain_ioctls(cfg);
+diff --git a/drivers/staging/rdma/ehca/ehca_mrmw.c b/drivers/staging/rdma/ehca/ehca_mrmw.c
+index f914b30999f8..4d52ca42644a 100644
+--- a/drivers/staging/rdma/ehca/ehca_mrmw.c
++++ b/drivers/staging/rdma/ehca/ehca_mrmw.c
+@@ -1921,7 +1921,7 @@ static int ehca_set_pagebuf_user2(struct ehca_mr_pginfo *pginfo,
+ 				  u64 *kpage)
+ {
+ 	int ret = 0;
+-	u64 pgaddr, prev_pgaddr;
++	u64 pgaddr, prev_pgaddr = 0;
+ 	u32 j = 0;
+ 	int kpages_per_hwpage = pginfo->hwpage_size / PAGE_SIZE;
+ 	int nr_kpages = kpages_per_hwpage;
+@@ -2417,6 +2417,7 @@ static int ehca_reg_bmap_mr_rpages(struct ehca_shca *shca,
+ 		ehca_err(&shca->ib_device, "kpage alloc failed");
+ 		return -ENOMEM;
+ 	}
++	hret = H_SUCCESS;
+ 	for (top = 0; top < EHCA_MAP_ENTRIES; top++) {
+ 		if (!ehca_bmap_valid(ehca_bmap->top[top]))
+ 			continue;
+diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
+index 83ff1724ec79..cf3da51a3536 100644
+--- a/drivers/tty/serial/8250/8250_pci.c
++++ b/drivers/tty/serial/8250/8250_pci.c
+@@ -5850,17 +5850,15 @@ static pci_ers_result_t serial8250_io_slot_reset(struct pci_dev *dev)
+ static void serial8250_io_resume(struct pci_dev *dev)
+ {
+ 	struct serial_private *priv = pci_get_drvdata(dev);
+-	const struct pciserial_board *board;
++	struct serial_private *new;
+ 
+ 	if (!priv)
+ 		return;
+ 
+-	board = priv->board;
+-	kfree(priv);
+-	priv = pciserial_init_ports(dev, board);
+-
+-	if (!IS_ERR(priv)) {
+-		pci_set_drvdata(dev, priv);
++	new = pciserial_init_ports(dev, priv->board);
++	if (!IS_ERR(new)) {
++		pci_set_drvdata(dev, new);
++		kfree(priv);
+ 	}
+ }
+ 
+diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
+index 94906aaa9b7c..e2f6a79e9b01 100644
+--- a/fs/cifs/cifsglob.h
++++ b/fs/cifs/cifsglob.h
+@@ -227,6 +227,7 @@ struct smb_version_operations {
+ 	/* verify the message */
+ 	int (*check_message)(char *, unsigned int);
+ 	bool (*is_oplock_break)(char *, struct TCP_Server_Info *);
++	int (*handle_cancelled_mid)(char *, struct TCP_Server_Info *);
+ 	void (*downgrade_oplock)(struct TCP_Server_Info *,
+ 					struct cifsInodeInfo *, bool);
+ 	/* process transaction2 response */
+@@ -1289,12 +1290,19 @@ struct mid_q_entry {
+ 	void *callback_data;	  /* general purpose pointer for callback */
+ 	void *resp_buf;		/* pointer to received SMB header */
+ 	int mid_state;	/* wish this were enum but can not pass to wait_event */
++	unsigned int mid_flags;
+ 	__le16 command;		/* smb command code */
+ 	bool large_buf:1;	/* if valid response, is pointer to large buf */
+ 	bool multiRsp:1;	/* multiple trans2 responses for one request  */
+ 	bool multiEnd:1;	/* both received */
+ };
+ 
++struct close_cancelled_open {
++	struct cifs_fid         fid;
++	struct cifs_tcon        *tcon;
++	struct work_struct      work;
++};
++
+ /*	Make code in transport.c a little cleaner by moving
+ 	update of optional stats into function below */
+ #ifdef CONFIG_CIFS_STATS2
+@@ -1426,6 +1434,9 @@ static inline void free_dfs_info_array(struct dfs_info3_param *param,
+ #define   MID_RESPONSE_MALFORMED 0x10
+ #define   MID_SHUTDOWN		 0x20
+ 
++/* Flags */
++#define   MID_WAIT_CANCELLED	 1 /* Cancelled while waiting for response */
++
+ /* Types of response buffer returned from SendReceive2 */
+ #define   CIFS_NO_BUFFER        0    /* Response buffer not returned */
+ #define   CIFS_SMALL_BUFFER     1
+diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
+index b1104ed8f54c..5e2f8b8ca08a 100644
+--- a/fs/cifs/cifssmb.c
++++ b/fs/cifs/cifssmb.c
+@@ -1424,6 +1424,8 @@ cifs_readv_discard(struct TCP_Server_Info *server, struct mid_q_entry *mid)
+ 
+ 	length = discard_remaining_data(server);
+ 	dequeue_mid(mid, rdata->result);
++	mid->resp_buf = server->smallbuf;
++	server->smallbuf = NULL;
+ 	return length;
+ }
+ 
+@@ -1538,6 +1540,8 @@ cifs_readv_receive(struct TCP_Server_Info *server, struct mid_q_entry *mid)
+ 		return cifs_readv_discard(server, mid);
+ 
+ 	dequeue_mid(mid, false);
++	mid->resp_buf = server->smallbuf;
++	server->smallbuf = NULL;
+ 	return length;
+ }
+ 
+diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
+index 5d59f25521ce..156bc18eac69 100644
+--- a/fs/cifs/connect.c
++++ b/fs/cifs/connect.c
+@@ -924,10 +924,19 @@ cifs_demultiplex_thread(void *p)
+ 
+ 		server->lstrp = jiffies;
+ 		if (mid_entry != NULL) {
++			if ((mid_entry->mid_flags & MID_WAIT_CANCELLED) &&
++			     mid_entry->mid_state == MID_RESPONSE_RECEIVED &&
++					server->ops->handle_cancelled_mid)
++				server->ops->handle_cancelled_mid(
++							mid_entry->resp_buf,
++							server);
++
+ 			if (!mid_entry->multiRsp || mid_entry->multiEnd)
+ 				mid_entry->callback(mid_entry);
+-		} else if (!server->ops->is_oplock_break ||
+-			   !server->ops->is_oplock_break(buf, server)) {
++		} else if (server->ops->is_oplock_break &&
++			   server->ops->is_oplock_break(buf, server)) {
++			cifs_dbg(FYI, "Received oplock break\n");
++		} else {
+ 			cifs_dbg(VFS, "No task to wake, unknown frame received! NumMids %d\n",
+ 				 atomic_read(&midCount));
+ 			cifs_dump_mem("Received Data is: ", buf,
+diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
+index e5bc85e49be7..76ccf20fbfb7 100644
+--- a/fs/cifs/smb2misc.c
++++ b/fs/cifs/smb2misc.c
+@@ -630,3 +630,47 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
+ 	cifs_dbg(FYI, "Can not process oplock break for non-existent connection\n");
+ 	return false;
+ }
++
++void
++smb2_cancelled_close_fid(struct work_struct *work)
++{
++	struct close_cancelled_open *cancelled = container_of(work,
++					struct close_cancelled_open, work);
++
++	cifs_dbg(VFS, "Close unmatched open\n");
++
++	SMB2_close(0, cancelled->tcon, cancelled->fid.persistent_fid,
++		   cancelled->fid.volatile_fid);
++	cifs_put_tcon(cancelled->tcon);
++	kfree(cancelled);
++}
++
++int
++smb2_handle_cancelled_mid(char *buffer, struct TCP_Server_Info *server)
++{
++	struct smb2_hdr *hdr = (struct smb2_hdr *)buffer;
++	struct smb2_create_rsp *rsp = (struct smb2_create_rsp *)buffer;
++	struct cifs_tcon *tcon;
++	struct close_cancelled_open *cancelled;
++
++	if (hdr->Command != SMB2_CREATE || hdr->Status != STATUS_SUCCESS)
++		return 0;
++
++	cancelled = kzalloc(sizeof(*cancelled), GFP_KERNEL);
++	if (!cancelled)
++		return -ENOMEM;
++
++	tcon = smb2_find_smb_tcon(server, hdr->SessionId, hdr->TreeId);
++	if (!tcon) {
++		kfree(cancelled);
++		return -ENOENT;
++	}
++
++	cancelled->fid.persistent_fid = rsp->PersistentFileId;
++	cancelled->fid.volatile_fid = rsp->VolatileFileId;
++	cancelled->tcon = tcon;
++	INIT_WORK(&cancelled->work, smb2_cancelled_close_fid);
++	queue_work(cifsiod_wq, &cancelled->work);
++
++	return 0;
++}
+diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
+index be34b4860675..087918c4612a 100644
+--- a/fs/cifs/smb2ops.c
++++ b/fs/cifs/smb2ops.c
+@@ -1511,6 +1511,7 @@ struct smb_version_operations smb20_operations = {
+ 	.clear_stats = smb2_clear_stats,
+ 	.print_stats = smb2_print_stats,
+ 	.is_oplock_break = smb2_is_valid_oplock_break,
++	.handle_cancelled_mid = smb2_handle_cancelled_mid,
+ 	.downgrade_oplock = smb2_downgrade_oplock,
+ 	.need_neg = smb2_need_neg,
+ 	.negotiate = smb2_negotiate,
+@@ -1589,6 +1590,7 @@ struct smb_version_operations smb21_operations = {
+ 	.clear_stats = smb2_clear_stats,
+ 	.print_stats = smb2_print_stats,
+ 	.is_oplock_break = smb2_is_valid_oplock_break,
++	.handle_cancelled_mid = smb2_handle_cancelled_mid,
+ 	.downgrade_oplock = smb2_downgrade_oplock,
+ 	.need_neg = smb2_need_neg,
+ 	.negotiate = smb2_negotiate,
+@@ -1670,6 +1672,7 @@ struct smb_version_operations smb30_operations = {
+ 	.print_stats = smb2_print_stats,
+ 	.dump_share_caps = smb2_dump_share_caps,
+ 	.is_oplock_break = smb2_is_valid_oplock_break,
++	.handle_cancelled_mid = smb2_handle_cancelled_mid,
+ 	.downgrade_oplock = smb2_downgrade_oplock,
+ 	.need_neg = smb2_need_neg,
+ 	.negotiate = smb2_negotiate,
+@@ -1757,6 +1760,7 @@ struct smb_version_operations smb311_operations = {
+ 	.print_stats = smb2_print_stats,
+ 	.dump_share_caps = smb2_dump_share_caps,
+ 	.is_oplock_break = smb2_is_valid_oplock_break,
++	.handle_cancelled_mid = smb2_handle_cancelled_mid,
+ 	.downgrade_oplock = smb2_downgrade_oplock,
+ 	.need_neg = smb2_need_neg,
+ 	.negotiate = smb2_negotiate,
+diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
+index 0a406ae78129..adc5234486c3 100644
+--- a/fs/cifs/smb2proto.h
++++ b/fs/cifs/smb2proto.h
+@@ -47,6 +47,10 @@ extern struct mid_q_entry *smb2_setup_request(struct cifs_ses *ses,
+ 			      struct smb_rqst *rqst);
+ extern struct mid_q_entry *smb2_setup_async_request(
+ 			struct TCP_Server_Info *server, struct smb_rqst *rqst);
++extern struct cifs_ses *smb2_find_smb_ses(struct TCP_Server_Info *server,
++					   __u64 ses_id);
++extern struct cifs_tcon *smb2_find_smb_tcon(struct TCP_Server_Info *server,
++						__u64 ses_id, __u32  tid);
+ extern int smb2_calc_signature(struct smb_rqst *rqst,
+ 				struct TCP_Server_Info *server);
+ extern int smb3_calc_signature(struct smb_rqst *rqst,
+@@ -157,6 +161,9 @@ extern int SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
+ extern int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
+ 			     const u64 persistent_fid, const u64 volatile_fid,
+ 			     const __u8 oplock_level);
++extern int smb2_handle_cancelled_mid(char *buffer,
++					struct TCP_Server_Info *server);
++void smb2_cancelled_close_fid(struct work_struct *work);
+ extern int SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
+ 			 u64 persistent_file_id, u64 volatile_file_id,
+ 			 struct kstatfs *FSData);
+diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c
+index d4c5b6f109a7..69e3b322bbfe 100644
+--- a/fs/cifs/smb2transport.c
++++ b/fs/cifs/smb2transport.c
+@@ -115,22 +115,68 @@ smb3_crypto_shash_allocate(struct TCP_Server_Info *server)
+ }
+ 
+ static struct cifs_ses *
+-smb2_find_smb_ses(struct smb2_hdr *smb2hdr, struct TCP_Server_Info *server)
++smb2_find_smb_ses_unlocked(struct TCP_Server_Info *server, __u64 ses_id)
+ {
+ 	struct cifs_ses *ses;
+ 
+-	spin_lock(&cifs_tcp_ses_lock);
+ 	list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
+-		if (ses->Suid != smb2hdr->SessionId)
++		if (ses->Suid != ses_id)
+ 			continue;
+-		spin_unlock(&cifs_tcp_ses_lock);
+ 		return ses;
+ 	}
++
++	return NULL;
++}
++
++struct cifs_ses *
++smb2_find_smb_ses(struct TCP_Server_Info *server, __u64 ses_id)
++{
++	struct cifs_ses *ses;
++
++	spin_lock(&cifs_tcp_ses_lock);
++	ses = smb2_find_smb_ses_unlocked(server, ses_id);
+ 	spin_unlock(&cifs_tcp_ses_lock);
+ 
++	return ses;
++}
++
++static struct cifs_tcon *
++smb2_find_smb_sess_tcon_unlocked(struct cifs_ses *ses, __u32  tid)
++{
++	struct cifs_tcon *tcon;
++
++	list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {
++		if (tcon->tid != tid)
++			continue;
++		++tcon->tc_count;
++		return tcon;
++	}
++
+ 	return NULL;
+ }
+ 
++/*
++ * Obtain tcon corresponding to the tid in the given
++ * cifs_ses
++ */
++
++struct cifs_tcon *
++smb2_find_smb_tcon(struct TCP_Server_Info *server, __u64 ses_id, __u32 tid)
++{
++	struct cifs_ses *ses;
++	struct cifs_tcon *tcon;
++
++	spin_lock(&cifs_tcp_ses_lock);
++	ses = smb2_find_smb_ses_unlocked(server, ses_id);
++	if (!ses) {
++		spin_unlock(&cifs_tcp_ses_lock);
++		return NULL;
++	}
++	tcon = smb2_find_smb_sess_tcon_unlocked(ses, tid);
++	spin_unlock(&cifs_tcp_ses_lock);
++
++	return tcon;
++}
+ 
+ int
+ smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
+@@ -143,7 +189,7 @@ smb2_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
+ 	struct smb2_hdr *smb2_pdu = (struct smb2_hdr *)iov[0].iov_base;
+ 	struct cifs_ses *ses;
+ 
+-	ses = smb2_find_smb_ses(smb2_pdu, server);
++	ses = smb2_find_smb_ses(server, smb2_pdu->SessionId);
+ 	if (!ses) {
+ 		cifs_dbg(VFS, "%s: Could not find session\n", __func__);
+ 		return 0;
+@@ -314,7 +360,7 @@ smb3_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
+ 	struct smb2_hdr *smb2_pdu = (struct smb2_hdr *)iov[0].iov_base;
+ 	struct cifs_ses *ses;
+ 
+-	ses = smb2_find_smb_ses(smb2_pdu, server);
++	ses = smb2_find_smb_ses(server, smb2_pdu->SessionId);
+ 	if (!ses) {
+ 		cifs_dbg(VFS, "%s: Could not find session\n", __func__);
+ 		return 0;
+diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
+index 87abe8ed074c..54af10204e83 100644
+--- a/fs/cifs/transport.c
++++ b/fs/cifs/transport.c
+@@ -786,9 +786,11 @@ SendReceive2(const unsigned int xid, struct cifs_ses *ses,
+ 
+ 	rc = wait_for_response(ses->server, midQ);
+ 	if (rc != 0) {
++		cifs_dbg(FYI, "Cancelling wait for mid %llu\n",	midQ->mid);
+ 		send_cancel(ses->server, buf, midQ);
+ 		spin_lock(&GlobalMid_Lock);
+ 		if (midQ->mid_state == MID_REQUEST_SUBMITTED) {
++			midQ->mid_flags |= MID_WAIT_CANCELLED;
+ 			midQ->callback = DeleteMidQEntry;
+ 			spin_unlock(&GlobalMid_Lock);
+ 			cifs_small_buf_release(buf);
+diff --git a/fs/ext4/crypto.c b/fs/ext4/crypto.c
+index 1a0835073663..9d6c2dcf1bd0 100644
+--- a/fs/ext4/crypto.c
++++ b/fs/ext4/crypto.c
+@@ -34,6 +34,7 @@
+ #include <linux/random.h>
+ #include <linux/scatterlist.h>
+ #include <linux/spinlock_types.h>
++#include <linux/namei.h>
+ 
+ #include "ext4_extents.h"
+ #include "xattr.h"
+@@ -469,3 +470,61 @@ uint32_t ext4_validate_encryption_key_size(uint32_t mode, uint32_t size)
+ 		return size;
+ 	return 0;
+ }
++
++/*
++ * Validate dentries for encrypted directories to make sure we aren't
++ * potentially caching stale data after a key has been added or
++ * removed.
++ */
++static int ext4_d_revalidate(struct dentry *dentry, unsigned int flags)
++{
++	struct dentry *dir;
++	struct ext4_crypt_info *ci;
++	int dir_has_key, cached_with_key;
++
++	if (flags & LOOKUP_RCU)
++		return -ECHILD;
++
++	dir = dget_parent(dentry);
++	if (!ext4_encrypted_inode(d_inode(dir))) {
++		dput(dir);
++		return 0;
++	}
++	ci = EXT4_I(d_inode(dir))->i_crypt_info;
++
++	/* this should eventually be an flag in d_flags */
++	cached_with_key = dentry->d_fsdata != NULL;
++	dir_has_key = (ci != NULL);
++	dput(dir);
++
++	/*
++	 * If the dentry was cached without the key, and it is a
++	 * negative dentry, it might be a valid name.  We can't check
++	 * if the key has since been made available due to locking
++	 * reasons, so we fail the validation so ext4_lookup() can do
++	 * this check.
++	 *
++	 * We also fail the validation if the dentry was created with
++	 * the key present, but we no longer have the key, or vice versa.
++	 */
++	if ((!cached_with_key && d_is_negative(dentry)) ||
++	    (!cached_with_key && dir_has_key) ||
++	    (cached_with_key && !dir_has_key)) {
++#if 0				/* Revalidation debug */
++		char buf[80];
++		char *cp = simple_dname(dentry, buf, sizeof(buf));
++
++		if (IS_ERR(cp))
++			cp = (char *) "???";
++		pr_err("revalidate: %s %p %d %d %d\n", cp, dentry->d_fsdata,
++		       cached_with_key, d_is_negative(dentry),
++		       dir_has_key);
++#endif
++		return 0;
++	}
++	return 1;
++}
++
++const struct dentry_operations ext4_encrypted_d_ops = {
++	.d_revalidate = ext4_d_revalidate,
++};
+diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
+index 1d1bca74f844..6d17f31a31d7 100644
+--- a/fs/ext4/dir.c
++++ b/fs/ext4/dir.c
+@@ -111,6 +111,12 @@ static int ext4_readdir(struct file *file, struct dir_context *ctx)
+ 	int dir_has_error = 0;
+ 	struct ext4_str fname_crypto_str = {.name = NULL, .len = 0};
+ 
++	if (ext4_encrypted_inode(inode)) {
++		err = ext4_get_encryption_info(inode);
++		if (err && err != -ENOKEY)
++			return err;
++	}
++
+ 	if (is_dx_dir(inode)) {
+ 		err = ext4_dx_readdir(file, ctx);
+ 		if (err != ERR_BAD_DX_DIR) {
+diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
+index 362d59b24f1d..3de9bb357b4f 100644
+--- a/fs/ext4/ext4.h
++++ b/fs/ext4/ext4.h
+@@ -2268,6 +2268,7 @@ struct page *ext4_encrypt(struct inode *inode,
+ 			  struct page *plaintext_page);
+ int ext4_decrypt(struct page *page);
+ int ext4_encrypted_zeroout(struct inode *inode, struct ext4_extent *ex);
++extern const struct dentry_operations ext4_encrypted_d_ops;
+ 
+ #ifdef CONFIG_EXT4_FS_ENCRYPTION
+ int ext4_init_crypto(void);
+diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
+index 789e2d6724a9..bcd7c4788903 100644
+--- a/fs/ext4/ioctl.c
++++ b/fs/ext4/ioctl.c
+@@ -622,6 +622,9 @@ resizefs_out:
+ 		struct ext4_encryption_policy policy;
+ 		int err = 0;
+ 
++		if (!ext4_has_feature_encrypt(sb))
++			return -EOPNOTSUPP;
++
+ 		if (copy_from_user(&policy,
+ 				   (struct ext4_encryption_policy __user *)arg,
+ 				   sizeof(policy))) {
+diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
+index 573b4cbb0cb9..fafa903ab3c0 100644
+--- a/fs/ext4/namei.c
++++ b/fs/ext4/namei.c
+@@ -1557,6 +1557,24 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi
+ 	struct ext4_dir_entry_2 *de;
+ 	struct buffer_head *bh;
+ 
++       if (ext4_encrypted_inode(dir)) {
++               int res = ext4_get_encryption_info(dir);
++
++		/*
++		 * This should be a properly defined flag for
++		 * dentry->d_flags when we uplift this to the VFS.
++		 * d_fsdata is set to (void *) 1 if if the dentry is
++		 * created while the directory was encrypted and we
++		 * don't have access to the key.
++		 */
++	       dentry->d_fsdata = NULL;
++	       if (ext4_encryption_info(dir))
++		       dentry->d_fsdata = (void *) 1;
++	       d_set_d_op(dentry, &ext4_encrypted_d_ops);
++	       if (res && res != -ENOKEY)
++		       return ERR_PTR(res);
++       }
++
+ 	if (dentry->d_name.len > EXT4_NAME_LEN)
+ 		return ERR_PTR(-ENAMETOOLONG);
+ 
+diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
+index 00575d776d91..7162ab7bc093 100644
+--- a/fs/nfsd/nfs3xdr.c
++++ b/fs/nfsd/nfs3xdr.c
+@@ -358,6 +358,7 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ {
+ 	unsigned int len, v, hdr, dlen;
+ 	u32 max_blocksize = svc_max_payload(rqstp);
++	struct kvec *head = rqstp->rq_arg.head;
+ 
+ 	p = decode_fh(p, &args->fh);
+ 	if (!p)
+@@ -367,6 +368,8 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 	args->count = ntohl(*p++);
+ 	args->stable = ntohl(*p++);
+ 	len = args->len = ntohl(*p++);
++	if ((void *)p > head->iov_base + head->iov_len)
++		return 0;
+ 	/*
+ 	 * The count must equal the amount of data passed.
+ 	 */
+@@ -377,9 +380,8 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 	 * Check to make sure that we got the right number of
+ 	 * bytes.
+ 	 */
+-	hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
+-	dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
+-		- hdr;
++	hdr = (void*)p - head->iov_base;
++	dlen = head->iov_len + rqstp->rq_arg.page_len - hdr;
+ 	/*
+ 	 * Round the length of the data which was specified up to
+ 	 * the next multiple of XDR units and then compare that
+@@ -396,7 +398,7 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 		len = args->len = max_blocksize;
+ 	}
+ 	rqstp->rq_vec[0].iov_base = (void*)p;
+-	rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr;
++	rqstp->rq_vec[0].iov_len = head->iov_len - hdr;
+ 	v = 0;
+ 	while (len > rqstp->rq_vec[v].iov_len) {
+ 		len -= rqstp->rq_vec[v].iov_len;
+@@ -471,6 +473,8 @@ nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
+ 	/* first copy and check from the first page */
+ 	old = (char*)p;
+ 	vec = &rqstp->rq_arg.head[0];
++	if ((void *)old > vec->iov_base + vec->iov_len)
++		return 0;
+ 	avail = vec->iov_len - (old - (char*)vec->iov_base);
+ 	while (len && avail && *old) {
+ 		*new++ = *old++;
+diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
+index 79d964aa8079..bf913201a6ad 100644
+--- a/fs/nfsd/nfsxdr.c
++++ b/fs/nfsd/nfsxdr.c
+@@ -280,6 +280,7 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 					struct nfsd_writeargs *args)
+ {
+ 	unsigned int len, hdr, dlen;
++	struct kvec *head = rqstp->rq_arg.head;
+ 	int v;
+ 
+ 	p = decode_fh(p, &args->fh);
+@@ -300,9 +301,10 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 	 * Check to make sure that we got the right number of
+ 	 * bytes.
+ 	 */
+-	hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
+-	dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
+-		- hdr;
++	hdr = (void*)p - head->iov_base;
++	if (hdr > head->iov_len)
++		return 0;
++	dlen = head->iov_len + rqstp->rq_arg.page_len - hdr;
+ 
+ 	/*
+ 	 * Round the length of the data which was specified up to
+@@ -316,7 +318,7 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 		return 0;
+ 
+ 	rqstp->rq_vec[0].iov_base = (void*)p;
+-	rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr;
++	rqstp->rq_vec[0].iov_len = head->iov_len - hdr;
+ 	v = 0;
+ 	while (len > rqstp->rq_vec[v].iov_len) {
+ 		len -= rqstp->rq_vec[v].iov_len;
+diff --git a/fs/timerfd.c b/fs/timerfd.c
+index 053818dd6c18..1327a02ec778 100644
+--- a/fs/timerfd.c
++++ b/fs/timerfd.c
+@@ -40,6 +40,7 @@ struct timerfd_ctx {
+ 	short unsigned settime_flags;	/* to show in fdinfo */
+ 	struct rcu_head rcu;
+ 	struct list_head clist;
++	spinlock_t cancel_lock;
+ 	bool might_cancel;
+ };
+ 
+@@ -112,7 +113,7 @@ void timerfd_clock_was_set(void)
+ 	rcu_read_unlock();
+ }
+ 
+-static void timerfd_remove_cancel(struct timerfd_ctx *ctx)
++static void __timerfd_remove_cancel(struct timerfd_ctx *ctx)
+ {
+ 	if (ctx->might_cancel) {
+ 		ctx->might_cancel = false;
+@@ -122,6 +123,13 @@ static void timerfd_remove_cancel(struct timerfd_ctx *ctx)
+ 	}
+ }
+ 
++static void timerfd_remove_cancel(struct timerfd_ctx *ctx)
++{
++	spin_lock(&ctx->cancel_lock);
++	__timerfd_remove_cancel(ctx);
++	spin_unlock(&ctx->cancel_lock);
++}
++
+ static bool timerfd_canceled(struct timerfd_ctx *ctx)
+ {
+ 	if (!ctx->might_cancel || ctx->moffs.tv64 != KTIME_MAX)
+@@ -132,6 +140,7 @@ static bool timerfd_canceled(struct timerfd_ctx *ctx)
+ 
+ static void timerfd_setup_cancel(struct timerfd_ctx *ctx, int flags)
+ {
++	spin_lock(&ctx->cancel_lock);
+ 	if ((ctx->clockid == CLOCK_REALTIME ||
+ 	     ctx->clockid == CLOCK_REALTIME_ALARM) &&
+ 	    (flags & TFD_TIMER_ABSTIME) && (flags & TFD_TIMER_CANCEL_ON_SET)) {
+@@ -141,9 +150,10 @@ static void timerfd_setup_cancel(struct timerfd_ctx *ctx, int flags)
+ 			list_add_rcu(&ctx->clist, &cancel_list);
+ 			spin_unlock(&cancel_lock);
+ 		}
+-	} else if (ctx->might_cancel) {
+-		timerfd_remove_cancel(ctx);
++	} else {
++		__timerfd_remove_cancel(ctx);
+ 	}
++	spin_unlock(&ctx->cancel_lock);
+ }
+ 
+ static ktime_t timerfd_get_remaining(struct timerfd_ctx *ctx)
+@@ -395,6 +405,7 @@ SYSCALL_DEFINE2(timerfd_create, int, clockid, int, flags)
+ 		return -ENOMEM;
+ 
+ 	init_waitqueue_head(&ctx->wqh);
++	spin_lock_init(&ctx->cancel_lock);
+ 	ctx->clockid = clockid;
+ 
+ 	if (isalarm(ctx))
+diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
+index 366cf77953b5..806d0ab845e0 100644
+--- a/include/linux/mtd/map.h
++++ b/include/linux/mtd/map.h
+@@ -122,18 +122,13 @@
+ #endif
+ 
+ #ifdef CONFIG_MTD_MAP_BANK_WIDTH_32
+-# ifdef map_bankwidth
+-#  undef map_bankwidth
+-#  define map_bankwidth(map) ((map)->bankwidth)
+-#  undef map_bankwidth_is_large
+-#  define map_bankwidth_is_large(map) (map_bankwidth(map) > BITS_PER_LONG/8)
+-#  undef map_words
+-#  define map_words(map) map_calc_words(map)
+-# else
+-#  define map_bankwidth(map) 32
+-#  define map_bankwidth_is_large(map) (1)
+-#  define map_words(map) map_calc_words(map)
+-# endif
++/* always use indirect access for 256-bit to preserve kernel stack */
++# undef map_bankwidth
++# define map_bankwidth(map) ((map)->bankwidth)
++# undef map_bankwidth_is_large
++# define map_bankwidth_is_large(map) (map_bankwidth(map) > BITS_PER_LONG/8)
++# undef map_words
++# define map_words(map) map_calc_words(map)
+ #define map_bankwidth_is_32(map) (map_bankwidth(map) == 32)
+ #undef MAX_MAP_BANKWIDTH
+ #define MAX_MAP_BANKWIDTH 32
+diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
+index 8e33019d8e7b..acfb16fdcd55 100644
+--- a/net/netlink/af_netlink.c
++++ b/net/netlink/af_netlink.c
+@@ -2107,7 +2107,7 @@ static int netlink_dump(struct sock *sk)
+ 	if (!skb) {
+ 		alloc_size = alloc_min_size;
+ 		skb = netlink_alloc_skb(sk, alloc_size, nlk->portid,
+-					(GFP_KERNEL & ~__GFP_DIRECT_RECLAIM));
++					GFP_KERNEL);
+ 	}
+ 	if (!skb)
+ 		goto errout_skb;
+diff --git a/sound/ppc/awacs.c b/sound/ppc/awacs.c
+index 09da7b52bc2e..1468e4b7bf93 100644
+--- a/sound/ppc/awacs.c
++++ b/sound/ppc/awacs.c
+@@ -991,6 +991,7 @@ snd_pmac_awacs_init(struct snd_pmac *chip)
+ 		if (err < 0)
+ 			return err;
+ 	}
++	master_vol = NULL;
+ 	if (pm7500)
+ 		err = build_mixers(chip,
+ 				   ARRAY_SIZE(snd_pmac_awacs_mixers_pmac7500),
+diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c
+index 7a5c9a36c1db..daba8c56b43b 100644
+--- a/sound/soc/intel/boards/bytcr_rt5640.c
++++ b/sound/soc/intel/boards/bytcr_rt5640.c
+@@ -139,7 +139,7 @@ static struct snd_soc_dai_link byt_dailink[] = {
+ 		.codec_dai_name = "snd-soc-dummy-dai",
+ 		.codec_name = "snd-soc-dummy",
+ 		.platform_name = "sst-mfld-platform",
+-		.ignore_suspend = 1,
++		.nonatomic = true,
+ 		.dynamic = 1,
+ 		.dpcm_playback = 1,
+ 		.dpcm_capture = 1,
+@@ -166,6 +166,7 @@ static struct snd_soc_dai_link byt_dailink[] = {
+ 						| SND_SOC_DAIFMT_CBS_CFS,
+ 		.be_hw_params_fixup = byt_codec_fixup,
+ 		.ignore_suspend = 1,
++		.nonatomic = true,
+ 		.dpcm_playback = 1,
+ 		.dpcm_capture = 1,
+ 		.ops = &byt_be_ssp2_ops,