3.12.17-stable review

index 7d4ccfa48008..31da88bf6c1c 100644
@@ -3264,7 +3264,7 @@ static int cap_put_caller(struct snd_kcontrol *kcontrol,
 	mutex_unlock(&codec->control_mutex);
 	snd_hda_codec_flush_cache(codec); /* flush the updates */
 	if (err >= 0 && spec->cap_sync_hook)
-		spec->cap_sync_hook(codec, ucontrol);
+		spec->cap_sync_hook(codec, kcontrol, ucontrol);
 	return err;
 }
 

@@ -3385,7 +3385,7 @@ static int cap_single_sw_put(struct snd_kcontrol *kcontrol,
 		return ret;
 
 	if (spec->cap_sync_hook)
-		spec->cap_sync_hook(codec, ucontrol);
+		spec->cap_sync_hook(codec, kcontrol, ucontrol);
 
 	return ret;
 }

@@ -3790,7 +3790,7 @@ static int mux_select(struct hda_codec *codec, unsigned int adc_idx,
 		return 0;
 	snd_hda_activate_path(codec, path, true, false);
 	if (spec->cap_sync_hook)
-		spec->cap_sync_hook(codec, NULL);
+		spec->cap_sync_hook(codec, NULL, NULL);
 	path_power_down_sync(codec, old_path);
 	return 1;
 }

@@ -5233,7 +5233,7 @@ static void init_input_src(struct hda_codec *codec)
 	}
 
 	if (spec->cap_sync_hook)
-		spec->cap_sync_hook(codec, NULL);
+		spec->cap_sync_hook(codec, NULL, NULL);
 }
 
 /* set right pin controls for digital I/O */

index 0929a06df812..a1095de808c8 100644
@@ -274,6 +274,7 @@ struct hda_gen_spec {
 	void (*init_hook)(struct hda_codec *codec);
 	void (*automute_hook)(struct hda_codec *codec);
 	void (*cap_sync_hook)(struct hda_codec *codec,
+			      struct snd_kcontrol *kcontrol,
 			      struct snd_ctl_elem_value *ucontrol);
 
 	/* PCM hooks */

index 96f07ce56603..fde381d02afd 100644
@@ -3282,7 +3282,8 @@ static void cxt_update_headset_mode(struct hda_codec *codec)
 }
 
 static void cxt_update_headset_mode_hook(struct hda_codec *codec,
-			     struct snd_ctl_elem_value *ucontrol)
+					 struct snd_kcontrol *kcontrol,
+					 struct snd_ctl_elem_value *ucontrol)
 {
 	cxt_update_headset_mode(codec);
 }

index deddee9c1565..6a32c857f704 100644
@@ -695,7 +695,8 @@ static void alc_inv_dmic_sync(struct hda_codec *codec, bool force)
 }
 
 static void alc_inv_dmic_hook(struct hda_codec *codec,
-			     struct snd_ctl_elem_value *ucontrol)
+			      struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
 {
 	alc_inv_dmic_sync(codec, false);
 }

@@ -3141,7 +3142,8 @@ static void alc269_fixup_hp_gpio_mute_hook(void *private_data, int enabled)
 
 /* turn on/off mic-mute LED per capture hook */
 static void alc269_fixup_hp_gpio_mic_mute_hook(struct hda_codec *codec,
-			       struct snd_ctl_elem_value *ucontrol)
+					       struct snd_kcontrol *kcontrol,
+					       struct snd_ctl_elem_value *ucontrol)
 {
 	struct alc_spec *spec = codec->spec;
 	unsigned int oldval = spec->gpio_led;

@@ -3403,7 +3405,8 @@ static void alc_update_headset_mode(struct hda_codec *codec)
 }
 
 static void alc_update_headset_mode_hook(struct hda_codec *codec,
-			     struct snd_ctl_elem_value *ucontrol)
+					 struct snd_kcontrol *kcontrol,
+					 struct snd_ctl_elem_value *ucontrol)
 {
 	alc_update_headset_mode(codec);
 }

index 6133423821d1..d761c0b879c9 100644
@@ -195,7 +195,7 @@ struct sigmatel_spec {
 	int default_polarity;
 
 	unsigned int mic_mute_led_gpio; /* capture mute LED GPIO */
-	bool mic_mute_led_on; /* current mic mute state */
+	unsigned int mic_enabled; /* current mic mute state (bitmask) */
 
 	/* stream */
 	unsigned int stream_delay;

@@ -325,19 +325,26 @@ static void stac_gpio_set(struct hda_codec *codec, unsigned int mask,
 
 /* hook for controlling mic-mute LED GPIO */
 static void stac_capture_led_hook(struct hda_codec *codec,
-			       struct snd_ctl_elem_value *ucontrol)
+				  struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
 {
 	struct sigmatel_spec *spec = codec->spec;
-	bool mute;
+	unsigned int mask;
+	bool cur_mute, prev_mute;
 
-	if (!ucontrol)
+	if (!kcontrol || !ucontrol)
 		return;
 
-	mute = !(ucontrol->value.integer.value[0] ||
-		 ucontrol->value.integer.value[1]);
-	if (spec->mic_mute_led_on != mute) {
-		spec->mic_mute_led_on = mute;
-		if (mute)
+	mask = 1U << snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+	prev_mute = !spec->mic_enabled;
+	if (ucontrol->value.integer.value[0] ||
+	    ucontrol->value.integer.value[1])
+		spec->mic_enabled |= mask;
+	else
+		spec->mic_enabled &= ~mask;
+	cur_mute = !spec->mic_enabled;
+	if (cur_mute != prev_mute) {
+		if (cur_mute)
 			spec->gpio_data |= spec->mic_mute_led_gpio;
 		else
 			spec->gpio_data &= ~spec->mic_mute_led_gpio;

@@ -3974,7 +3981,7 @@ static void stac_setup_gpio(struct hda_codec *codec)
 	if (spec->mic_mute_led_gpio) {
 		spec->gpio_mask |= spec->mic_mute_led_gpio;
 		spec->gpio_dir |= spec->mic_mute_led_gpio;
-		spec->mic_mute_led_on = true;
+		spec->mic_enabled = 0;
 		spec->gpio_data |= spec->mic_mute_led_gpio;
 
 		spec->gen.cap_sync_hook = stac_capture_led_hook;

index 4296d1721272..737e29866887 100644
@@ -59,6 +59,7 @@
   Wellsburg (PCH) MS    0x8d7e     32     hard     yes     yes     yes
   Wellsburg (PCH) MS    0x8d7f     32     hard     yes     yes     yes
   Coleto Creek (PCH)    0x23b0     32     hard     yes     yes     yes
+  Wildcat Point-LP (PCH)   0x9ca2     32     hard     yes     yes     yes
 
   Features supported by this driver:
   Software PEC                     no

@@ -177,6 +178,7 @@
 #define PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1	0x8d7e
 #define PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2	0x8d7f
 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS	0x9c22
+#define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS	0x9ca2
 
 struct i801_mux_config {
 	char *gpio_chip;

@@ -819,6 +821,7 @@ static DEFINE_PCI_DEVICE_TABLE(i801_ids) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COLETOCREEK_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS) },
 	{ 0, }
 };
 

index d47bb0f267f7..000d370519d9 100644
@@ -1,7 +1,7 @@
 /*
  * intel_idle.c - native hardware idle loop for modern Intel processors
  *
- * Copyright (c) 2010, Intel Corporation.
+ * Copyright (c) 2013, Intel Corporation.
  * Len Brown <[email protected]>
  *
  * This program is free software; you can redistribute it and/or modify it

@@ -329,6 +329,22 @@ static struct cpuidle_state atom_cstates[CPUIDLE_STATE_MAX] = {
 	{
 		.enter = NULL }
 };
+static struct cpuidle_state avn_cstates[CPUIDLE_STATE_MAX] = {
+	{
+		.name = "C1-AVN",
+		.desc = "MWAIT 0x00",
+		.flags = MWAIT2flg(0x00) | CPUIDLE_FLAG_TIME_VALID,
+		.exit_latency = 2,
+		.target_residency = 2,
+		.enter = &intel_idle },
+	{
+		.name = "C6-AVN",
+		.desc = "MWAIT 0x51",
+		.flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
+		.exit_latency = 15,
+		.target_residency = 45,
+		.enter = &intel_idle },
+};
 
 /**
  * intel_idle

@@ -465,6 +481,11 @@ static const struct idle_cpu idle_cpu_hsw = {
 	.disable_promotion_to_c1e = true,
 };
 
+static const struct idle_cpu idle_cpu_avn = {
+	.state_table = avn_cstates,
+	.disable_promotion_to_c1e = true,
+};
+
 #define ICPU(model, cpu) \
 	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu }
 

@@ -486,6 +507,7 @@ static const struct x86_cpu_id intel_idle_ids[] = {
 	ICPU(0x3f, idle_cpu_hsw),
 	ICPU(0x45, idle_cpu_hsw),
 	ICPU(0x46, idle_cpu_hsw),
+	ICPU(0x4D, idle_cpu_avn),
 	{}
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids);

index f86dc5fcc4ad..d9351ee19f18 100644
@@ -9,6 +9,7 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 
+#include <linux/time.h>
 #include <crypto/public_key.h>
 
 struct x509_certificate {

index e81a1cae81b5..d0325d7db643 100644
@@ -1139,7 +1139,13 @@ out_zap_parent:
 	if (inode && S_ISDIR(inode->i_mode)) {
 		/* Purge readdir caches. */
 		nfs_zap_caches(inode);
-		if (dentry->d_flags & DCACHE_DISCONNECTED)
+		/*
+		 * We can't d_drop the root of a disconnected tree:
+		 * its d_hash is on the s_anon list and d_drop() would hide
+		 * it from shrink_dcache_for_unmount(), leading to busy
+		 * inodes on unmount and further oopses.
+		 */
+		if (IS_ROOT(dentry))
 			goto out_valid;
 	}
 	/* If we have submounts, don't unhash ! */

index 8160fbddbcfe..200e8564c59d 100644
@@ -66,6 +66,7 @@ bool nouveau_is_v1_dsm(void) {
 #define NOUVEAU_DSM_HAS_MUX 0x1
 #define NOUVEAU_DSM_HAS_OPT 0x2
 
+#ifdef CONFIG_VGA_SWITCHEROO
 static const char nouveau_dsm_muid[] = {
 	0xA0, 0xA0, 0x95, 0x9D, 0x60, 0x00, 0x48, 0x4D,
 	0xB3, 0x4D, 0x7E, 0x5F, 0xEA, 0x12, 0x9F, 0xD4,

@@ -378,6 +379,11 @@ void nouveau_unregister_dsm_handler(void)
 	if (nouveau_dsm_priv.optimus_detected || nouveau_dsm_priv.dsm_detected)
 		vga_switcheroo_unregister_handler();
 }
+#else
+void nouveau_register_dsm_handler(void) {}
+void nouveau_unregister_dsm_handler(void) {}
+void nouveau_switcheroo_optimus_dsm(void) {}
+#endif
 
 /* retrieve the ROM in 4k blocks */
 static int nouveau_rom_call(acpi_handle rom_handle, uint8_t *bios,

index 50226c4b86ed..e52947f80e68 100644
@@ -281,7 +281,7 @@ static int __init sha256_ssse3_mod_init(void)
 	/* allow AVX to override SSSE3, it's a little faster */
 	if (avx_usable()) {
 #ifdef CONFIG_AS_AVX2
-		if (boot_cpu_has(X86_FEATURE_AVX2))
+		if (boot_cpu_has(X86_FEATURE_AVX2) && boot_cpu_has(X86_FEATURE_BMI2))
 			sha256_transform_asm = sha256_transform_rorx;
 		else
 #endif

index 266ca912f62e..5ecf65117e6f 100644
@@ -42,15 +42,25 @@ static __init inline int srat_disabled(void)
 	return acpi_numa < 0;
 }
 
-/* Callback for SLIT parsing */
+/*
+ * Callback for SLIT parsing.  pxm_to_node() returns NUMA_NO_NODE for
+ * I/O localities since SRAT does not list them.  I/O localities are
+ * not supported at this point.
+ */
 void __init acpi_numa_slit_init(struct acpi_table_slit *slit)
 {
 	int i, j;
 
-	for (i = 0; i < slit->locality_count; i++)
-		for (j = 0; j < slit->locality_count; j++)
+	for (i = 0; i < slit->locality_count; i++) {
+		if (pxm_to_node(i) == NUMA_NO_NODE)
+			continue;
+		for (j = 0; j < slit->locality_count; j++) {
+			if (pxm_to_node(j) == NUMA_NO_NODE)
+				continue;
 			numa_set_distance(pxm_to_node(i), pxm_to_node(j),
 				slit->entry[slit->locality_count * i + j]);
+		}
+	}
 }
 
 /* Callback for Proximity Domain -> x2APIC mapping */

index dacaf74256a3..8659eb160b4d 100644
@@ -1916,6 +1916,9 @@ int fb_get_options(const char *name, char **option)
 				options = opt + name_len + 1;
 		}
 	}
+	/* No match, pass global option */
+	if (!options && option && fb_mode_option)
+		options = kstrdup(fb_mode_option, GFP_KERNEL);
 	if (options && !strncmp(options, "off", 3))
 		retval = 1;
 

index a7f9821d1760..bb035f8451c6 100644
@@ -1508,7 +1508,7 @@ out:
 static int
 gss_refresh_null(struct rpc_task *task)
 {
-	return -EACCES;
+	return 0;
 }
 
 static __be32 *

index 5a5fb98edb8a..9edb753d9e3a 100644
@@ -7273,7 +7273,14 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata)
 		return;
 
 	server = NFS_SERVER(lrp->args.inode);
-	if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN) {
+	switch (task->tk_status) {
+	default:
+		task->tk_status = 0;
+	case 0:
+		break;
+	case -NFS4ERR_DELAY:
+		if (nfs4_async_handle_error(task, server, NULL) != -EAGAIN)
+			break;
 		rpc_restart_call_prepare(task);
 		return;
 	}

index c7c295e556ed..efac602edb37 100644
@@ -95,7 +95,7 @@ same_sockaddr(struct sockaddr *addr1, struct sockaddr *addr2)
 		b6 = (struct sockaddr_in6 *)addr2;
 
 		/* LINKLOCAL addresses must have matching scope_id */
-		if (ipv6_addr_scope(&a6->sin6_addr) ==
+		if (ipv6_addr_src_scope(&a6->sin6_addr) ==
 		    IPV6_ADDR_SCOPE_LINKLOCAL &&
 		    a6->sin6_scope_id != b6->sin6_scope_id)
 			return false;

index 91ff089d3412..df06e6b1952e 100644
@@ -223,12 +223,23 @@ out:
  * Synchronous I/O uses a stack-allocated iocb.  Thus we can't trust
  * the iocb is still valid here if this is a synchronous request.
  */
-static void nfs_direct_complete(struct nfs_direct_req *dreq)
+static void nfs_direct_complete(struct nfs_direct_req *dreq, bool write)
 {
+	struct inode *inode = dreq->inode;
+
 	if (dreq->iocb) {
+		loff_t pos = dreq->iocb->ki_pos + dreq->count;
 		long res = (long) dreq->error;
 		if (!res)
 			res = (long) dreq->count;
+
+		if (write) {
+			spin_lock(&inode->i_lock);
+			if (i_size_read(inode) < pos)
+				i_size_write(inode, pos);
+			spin_unlock(&inode->i_lock);
+		}
+
 		aio_complete(dreq->iocb, res, 0);
 	}
 	complete_all(&dreq->completion);

@@ -273,7 +284,7 @@ static void nfs_direct_read_completion(struct nfs_pgio_header *hdr)
 	}
 out_put:
 	if (put_dreq(dreq))
-		nfs_direct_complete(dreq);
+		nfs_direct_complete(dreq, false);
 	hdr->release(hdr);
 }
 

@@ -435,7 +446,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq,
 	}
 
 	if (put_dreq(dreq))
-		nfs_direct_complete(dreq);
+		nfs_direct_complete(dreq, false);
 	return 0;
 }
 

@@ -595,7 +606,7 @@ static void nfs_direct_write_schedule_work(struct work_struct *work)
 			break;
 		default:
 			nfs_inode_dio_write_done(dreq->inode);
-			nfs_direct_complete(dreq);
+			nfs_direct_complete(dreq, true);
 	}
 }
 

@@ -612,7 +623,7 @@ static void nfs_direct_write_schedule_work(struct work_struct *work)
 static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode *inode)
 {
 	nfs_inode_dio_write_done(inode);
-	nfs_direct_complete(dreq);
+	nfs_direct_complete(dreq, true);
 }
 #endif
 

index df06e6b1952e..2adc0094cde8 100644
@@ -227,21 +227,27 @@ static void nfs_direct_complete(struct nfs_direct_req *dreq, bool write)
 {
 	struct inode *inode = dreq->inode;
 
-	if (dreq->iocb) {
+	if (dreq->iocb && write) {
 		loff_t pos = dreq->iocb->ki_pos + dreq->count;
+
+		spin_lock(&inode->i_lock);
+		if (i_size_read(inode) < pos)
+			i_size_write(inode, pos);
+		spin_unlock(&inode->i_lock);
+	}
+
+	if (write) {
+		nfs_zap_mapping(inode, inode->i_mapping);
+		inode_dio_done(inode);
+	}
+
+	if (dreq->iocb) {
 		long res = (long) dreq->error;
 		if (!res)
 			res = (long) dreq->count;
-
-		if (write) {
-			spin_lock(&inode->i_lock);
-			if (i_size_read(inode) < pos)
-				i_size_write(inode, pos);
-			spin_unlock(&inode->i_lock);
-		}
-
 		aio_complete(dreq->iocb, res, 0);
 	}
+
 	complete_all(&dreq->completion);
 
 	nfs_direct_req_release(dreq);

@@ -484,12 +490,6 @@ out:
 	return result;
 }
 
-static void nfs_inode_dio_write_done(struct inode *inode)
-{
-	nfs_zap_mapping(inode, inode->i_mapping);
-	inode_dio_done(inode);
-}
-
 #if IS_ENABLED(CONFIG_NFS_V3) || IS_ENABLED(CONFIG_NFS_V4)
 static void nfs_direct_write_reschedule(struct nfs_direct_req *dreq)
 {

@@ -605,7 +605,6 @@ static void nfs_direct_write_schedule_work(struct work_struct *work)
 			nfs_direct_write_reschedule(dreq);
 			break;
 		default:
-			nfs_inode_dio_write_done(dreq->inode);
 			nfs_direct_complete(dreq, true);
 	}
 }

@@ -622,7 +621,6 @@ static void nfs_direct_write_schedule_work(struct work_struct *work)
 
 static void nfs_direct_write_complete(struct nfs_direct_req *dreq, struct inode *inode)
 {
-	nfs_inode_dio_write_done(inode);
 	nfs_direct_complete(dreq, true);
 }
 #endif

index 2adc0094cde8..af5f3ffcb157 100644
@@ -236,10 +236,10 @@ static void nfs_direct_complete(struct nfs_direct_req *dreq, bool write)
 		spin_unlock(&inode->i_lock);
 	}
 
-	if (write) {
+	if (write)
 		nfs_zap_mapping(inode, inode->i_mapping);
-		inode_dio_done(inode);
-	}
+
+	inode_dio_done(inode);
 
 	if (dreq->iocb) {
 		long res = (long) dreq->error;

@@ -420,6 +420,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq,
 					      loff_t pos, bool uio)
 {
 	struct nfs_pageio_descriptor desc;
+	struct inode *inode = dreq->inode;
 	ssize_t result = -EINVAL;
 	size_t requested_bytes = 0;
 	unsigned long seg;

@@ -428,6 +429,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq,
 			     &nfs_direct_read_completion_ops);
 	get_dreq(dreq);
 	desc.pg_dreq = dreq;
+	atomic_inc(&inode->i_dio_count);
 
 	for (seg = 0; seg < nr_segs; seg++) {
 		const struct iovec *vec = &iov[seg];

@@ -447,6 +449,7 @@ static ssize_t nfs_direct_read_schedule_iovec(struct nfs_direct_req *dreq,
 	 * generic layer handle the completion.
 	 */
 	if (requested_bytes == 0) {
+		inode_dio_done(inode);
 		nfs_direct_req_release(dreq);
 		return result < 0 ? result : -EIO;
 	}

index b86464ba25e1..6e245d13de10 100644
@@ -1216,17 +1216,17 @@ static void filelayout_recover_commit_reqs(struct list_head *dst,
 	struct pnfs_commit_bucket *b;
 	int i;
 
-	/* NOTE cinfo->lock is NOT held, relying on fact that this is
-	 * only called on single thread per dreq.
-	 * Can't take the lock because need to do pnfs_put_lseg
-	 */
+	spin_lock(cinfo->lock);
 	for (i = 0, b = cinfo->ds->buckets; i < cinfo->ds->nbuckets; i++, b++) {
 		if (transfer_commit_list(&b->written, dst, cinfo, 0)) {
+			spin_unlock(cinfo->lock);
 			pnfs_put_lseg(b->wlseg);
 			b->wlseg = NULL;
+			spin_lock(cinfo->lock);
 		}
 	}
 	cinfo->ds->nwritten = 0;
+	spin_unlock(cinfo->lock);
 }
 
 static unsigned int

index d0325d7db643..4d9f098614bc 100644
@@ -290,7 +290,8 @@ int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_des
 
 			new_pos = desc->current_index + i;
 			if (ctx->attr_gencount != nfsi->attr_gencount
-			    || (nfsi->cache_validity & (NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA))) {
+			    || (nfsi->cache_validity & (NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA))
+			    || test_bit(NFS_INO_INVALIDATING, &nfsi->flags)) {
 				ctx->duped = 0;
 				ctx->attr_gencount = nfsi->attr_gencount;
 			} else if (new_pos < desc->ctx->pos) {

67 lines not on this page · raw message

index 89fe741e58b1..59f838cdc009 100644
@@ -36,6 +36,7 @@
 	__print_flags(v, "|", \
 			{ 1 << NFS_INO_ADVISE_RDPLUS, "ADVISE_RDPLUS" }, \
 			{ 1 << NFS_INO_STALE, "STALE" }, \
+			{ 1 << NFS_INO_INVALIDATING, "INVALIDATING" }, \
 			{ 1 << NFS_INO_FLUSHING, "FLUSHING" }, \
 			{ 1 << NFS_INO_FSCACHE, "FSCACHE" }, \
 			{ 1 << NFS_INO_COMMIT, "COMMIT" }, \

index 28466be64eeb..d69e789f1908 100644
@@ -909,9 +909,13 @@ bool nfs_ctx_key_to_expire(struct nfs_open_context *ctx)
  */
 static bool nfs_write_pageuptodate(struct page *page, struct inode *inode)
 {
+	struct nfs_inode *nfsi = NFS_I(inode);
+
 	if (nfs_have_delegated_attributes(inode))
 		goto out;
-	if (NFS_I(inode)->cache_validity & (NFS_INO_INVALID_DATA|NFS_INO_REVAL_PAGECACHE))
+	if (nfsi->cache_validity & (NFS_INO_INVALID_DATA|NFS_INO_REVAL_PAGECACHE))
+		return false;
+	if (test_bit(NFS_INO_INVALIDATING, &nfsi->flags))
 		return false;
 out:
 	return PageUptodate(page) != 0;

index 3ea4cde8701c..a632498d42fa 100644
@@ -215,6 +215,7 @@ struct nfs_inode {
 #define NFS_INO_ADVISE_RDPLUS	(0)		/* advise readdirplus */
 #define NFS_INO_STALE		(1)		/* possible stale inode */
 #define NFS_INO_ACL_LRU_SET	(2)		/* Inode is on the LRU list */
+#define NFS_INO_INVALIDATING	(3)		/* inode is being invalidated */
 #define NFS_INO_FLUSHING	(4)		/* inode is flushing out data */
 #define NFS_INO_FSCACHE		(5)		/* inode can be cached by FS-Cache */
 #define NFS_INO_FSCACHE_LOCK	(6)		/* FS-Cache cookie management lock */

index 9b6c90a8a311..12c0fa8ae004 100644
@@ -1048,24 +1048,24 @@ int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
 				  nfs_wait_bit_killable, TASK_KILLABLE);
 		if (ret)
 			goto out;
-		if (!(nfsi->cache_validity & NFS_INO_INVALID_DATA))
-			goto out;
-		if (!test_and_set_bit_lock(NFS_INO_INVALIDATING, bitlock))
+		spin_lock(&inode->i_lock);
+		if (test_bit(NFS_INO_INVALIDATING, bitlock)) {
+			spin_unlock(&inode->i_lock);
+			continue;
+		}
+		if (nfsi->cache_validity & NFS_INO_INVALID_DATA)
 			break;
-	}
-
-	spin_lock(&inode->i_lock);
-	if (nfsi->cache_validity & NFS_INO_INVALID_DATA) {
-		nfsi->cache_validity &= ~NFS_INO_INVALID_DATA;
-		spin_unlock(&inode->i_lock);
-		trace_nfs_invalidate_mapping_enter(inode);
-		ret = nfs_invalidate_mapping(inode, mapping);
-		trace_nfs_invalidate_mapping_exit(inode, ret);
-	} else {
-		/* something raced in and cleared the flag */
 		spin_unlock(&inode->i_lock);
+		goto out;
 	}
 
+	set_bit(NFS_INO_INVALIDATING, bitlock);
+	nfsi->cache_validity &= ~NFS_INO_INVALID_DATA;
+	spin_unlock(&inode->i_lock);
+	trace_nfs_invalidate_mapping_enter(inode);
+	ret = nfs_invalidate_mapping(inode, mapping);
+	trace_nfs_invalidate_mapping_exit(inode, ret);
+
 	clear_bit_unlock(NFS_INO_INVALIDATING, bitlock);
 	smp_mb__after_clear_bit();
 	wake_up_bit(bitlock, NFS_INO_INVALIDATING);

index 4d9f098614bc..140280623348 100644
@@ -276,6 +276,15 @@ out_eof:
 	return -EBADCOOKIE;
 }
 
+static bool
+nfs_readdir_inode_mapping_valid(struct nfs_inode *nfsi)
+{
+	if (nfsi->cache_validity & (NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA))
+		return false;
+	smp_rmb();
+	return !test_bit(NFS_INO_INVALIDATING, &nfsi->flags);
+}
+
 static
 int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_descriptor_t *desc)
 {

@@ -289,9 +298,8 @@ int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_des
 			struct nfs_open_dir_context *ctx = desc->file->private_data;
 
 			new_pos = desc->current_index + i;
-			if (ctx->attr_gencount != nfsi->attr_gencount
-			    || (nfsi->cache_validity & (NFS_INO_INVALID_ATTR|NFS_INO_INVALID_DATA))
-			    || test_bit(NFS_INO_INVALIDATING, &nfsi->flags)) {
+			if (ctx->attr_gencount != nfsi->attr_gencount ||
+			    !nfs_readdir_inode_mapping_valid(nfsi)) {
 				ctx->duped = 0;
 				ctx->attr_gencount = nfsi->attr_gencount;
 			} else if (new_pos < desc->ctx->pos) {

index 12c0fa8ae004..fdeeb28f287b 100644
@@ -1060,6 +1060,7 @@ int nfs_revalidate_mapping(struct inode *inode, struct address_space *mapping)
 	}
 
 	set_bit(NFS_INO_INVALIDATING, bitlock);
+	smp_wmb();
 	nfsi->cache_validity &= ~NFS_INO_INVALID_DATA;
 	spin_unlock(&inode->i_lock);
 	trace_nfs_invalidate_mapping_enter(inode);

index d69e789f1908..c6aa89f92558 100644
@@ -915,6 +915,7 @@ static bool nfs_write_pageuptodate(struct page *page, struct inode *inode)
 		goto out;
 	if (nfsi->cache_validity & (NFS_INO_INVALID_DATA|NFS_INO_REVAL_PAGECACHE))
 		return false;
+	smp_rmb();
 	if (test_bit(NFS_INO_INVALIDATING, &nfsi->flags))
 		return false;
 out:

index 28842abafab4..fdfd59157dce 100644
@@ -249,6 +249,7 @@ static inline struct nfs4_session *nfs4_get_session(const struct nfs_server *ser
 extern int nfs41_setup_sequence(struct nfs4_session *session,
 		struct nfs4_sequence_args *args, struct nfs4_sequence_res *res,
 		struct rpc_task *task);
+extern int nfs41_sequence_done(struct rpc_task *, struct nfs4_sequence_res *);
 extern int nfs4_proc_create_session(struct nfs_client *, struct rpc_cred *);
 extern int nfs4_proc_destroy_session(struct nfs4_session *, struct rpc_cred *);
 extern int nfs4_proc_get_lease_time(struct nfs_client *clp,

index 6e245d13de10..394b0a0c54bf 100644
@@ -335,8 +335,11 @@ static void filelayout_read_call_done(struct rpc_task *task, void *data)
 	dprintk("--> %s task->tk_status %d\n", __func__, task->tk_status);
 
 	if (test_bit(NFS_IOHDR_REDO, &rdata->header->flags) &&
-	    task->tk_status == 0)
+	    task->tk_status == 0) {
+		if (rdata->res.seq_res.sr_slot != NULL)
+			nfs41_sequence_done(task, &rdata->res.seq_res);
 		return;
+	}
 
 	/* Note this may cause RPC to be resent */
 	rdata->header->mds_ops->rpc_call_done(task, data);

@@ -442,8 +445,11 @@ static void filelayout_write_call_done(struct rpc_task *task, void *data)
 	struct nfs_write_data *wdata = data;
 
 	if (test_bit(NFS_IOHDR_REDO, &wdata->header->flags) &&
-	    task->tk_status == 0)
+	    task->tk_status == 0) {
+		if (wdata->res.seq_res.sr_slot != NULL)
+			nfs41_sequence_done(task, &wdata->res.seq_res);
 		return;
+	}
 
 	/* Note this may cause RPC to be resent */
 	wdata->header->mds_ops->rpc_call_done(task, data);

index 9edb753d9e3a..bcd42fbc04e7 100644
@@ -585,7 +585,7 @@ out_unlock:
 		nfs41_server_notify_highest_slotid_update(session->clp);
 }
 
-static int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res)
+int nfs41_sequence_done(struct rpc_task *task, struct nfs4_sequence_res *res)
 {
 	struct nfs4_session *session;
 	struct nfs4_slot *slot;

@@ -685,6 +685,7 @@ out_retry:
 	rpc_delay(task, NFS4_POLL_RETRY_MAX);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(nfs41_sequence_done);
 
 static int nfs4_sequence_done(struct rpc_task *task,
 			       struct nfs4_sequence_res *res)

index d90909ec6aa6..a5e34dd6a32c 100644
@@ -649,6 +649,7 @@ static void process_sctp_notification(struct connection *con,
 				      struct msghdr *msg, char *buf)
 {
 	union sctp_notification *sn = (union sctp_notification *)buf;
+	struct linger linger;
 
 	switch (sn->sn_header.sn_type) {
 	case SCTP_SEND_FAILED:

@@ -727,6 +728,13 @@ static void process_sctp_notification(struct connection *con,
 			}
 			add_sock(new_con->sock, new_con);
 
+			linger.l_onoff = 1;
+			linger.l_linger = 0;
+			ret = kernel_setsockopt(new_con->sock, SOL_SOCKET, SO_LINGER,
+						(char *)&linger, sizeof(linger));
+			if (ret < 0)
+				log_print("set socket option SO_LINGER failed");
+
 			log_print("connecting to %d sctp association %d",
 				 nodeid, (int)sn->sn_assoc_change.sac_assoc_id);
 

index e1959efad64f..b5ebc2d7d80d 100644
@@ -50,6 +50,8 @@ void fscache_objlist_add(struct fscache_object *obj)
 	struct fscache_object *xobj;
 	struct rb_node **p = &fscache_object_list.rb_node, *parent = NULL;
 
+	ASSERT(RB_EMPTY_NODE(&obj->objlist_link));
+
 	write_lock(&fscache_object_list_lock);
 
 	while (*p) {

@@ -75,6 +77,9 @@ void fscache_objlist_add(struct fscache_object *obj)
  */
 void fscache_objlist_remove(struct fscache_object *obj)
 {
+	if (RB_EMPTY_NODE(&obj->objlist_link))
+		return;
+
 	write_lock(&fscache_object_list_lock);
 
 	BUG_ON(RB_EMPTY_ROOT(&fscache_object_list));

index 86d75a60b20c..fec41344dacc 100644
@@ -314,6 +314,9 @@ void fscache_object_init(struct fscache_object *object,
 	object->cache = cache;
 	object->cookie = cookie;
 	object->parent = NULL;
+#ifdef CONFIG_FSCACHE_OBJECT_LIST
+	RB_CLEAR_NODE(&object->objlist_link);
+#endif
 
 	object->oob_event_mask = 0;
 	for (t = object->oob_table; t->events; t++)

index 4c8e5c0aa1ab..d585626d7676 100644
@@ -871,11 +871,11 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p,
 	cp->protocol	   = p->protocol;
 	ip_vs_addr_set(p->af, &cp->caddr, p->caddr);
 	cp->cport	   = p->cport;
-	ip_vs_addr_set(p->af, &cp->vaddr, p->vaddr);
-	cp->vport	   = p->vport;
-	/* proto should only be IPPROTO_IP if d_addr is a fwmark */
+	/* proto should only be IPPROTO_IP if p->vaddr is a fwmark */
 	ip_vs_addr_set(p->protocol == IPPROTO_IP ? AF_UNSPEC : p->af,
-		       &cp->daddr, daddr);
+		       &cp->vaddr, p->vaddr);
+	cp->vport	   = p->vport;
+	ip_vs_addr_set(p->af, &cp->daddr, daddr);
 	cp->dport          = dport;
 	cp->flags	   = flags;
 	cp->fwmark         = fwmark;

index a6debe13d5b9..44a1fb6fa4a0 100644
@@ -722,7 +722,7 @@ static int wacom_led_control(struct wacom *wacom)
 		return -ENOMEM;
 
 	if (wacom->wacom_wac.features.type >= INTUOS5S &&
-	    wacom->wacom_wac.features.type <= INTUOS5L)	{
+	    wacom->wacom_wac.features.type <= INTUOSPL)	{
 		/*
 		 * Touch Ring and crop mark LED luminance may take on
 		 * one of four values:

@@ -984,6 +984,9 @@ static int wacom_initialize_leds(struct wacom *wacom)
 	case INTUOS5S:
 	case INTUOS5:
 	case INTUOS5L:
+	case INTUOSPS:
+	case INTUOSPM:
+	case INTUOSPL:
 		wacom->led.select[0] = 0;
 		wacom->led.select[1] = 0;
 		wacom->led.llv = 32;

@@ -1027,6 +1030,9 @@ static void wacom_destroy_leds(struct wacom *wacom)
 	case INTUOS5S:
 	case INTUOS5:
 	case INTUOS5L:
+	case INTUOSPS:
+	case INTUOSPM:
+	case INTUOSPL:
 		sysfs_remove_group(&wacom->intf->dev.kobj,
 				   &intuos5_led_attr_group);
 		break;

@@ -1305,7 +1311,7 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 	 * HID descriptor. If this is the touch interface (wMaxPacketSize
 	 * of WACOM_PKGLEN_BBTOUCH3), override the table values.
 	 */
-	if (features->type >= INTUOS5S && features->type <= INTUOS5L) {
+	if (features->type >= INTUOS5S && features->type <= INTUOSPL) {
 		if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) {
 			features->device_type = BTN_TOOL_FINGER;
 			features->pktlen = WACOM_PKGLEN_BBTOUCH3;

140 lines not on this page · raw message

index dfc9e08e7f70..d6dec5800791 100644
@@ -76,6 +76,9 @@ enum {
 	INTUOS5S,
 	INTUOS5,
 	INTUOS5L,
+	INTUOSPS,
+	INTUOSPM,
+	INTUOSPL,
 	WACOM_21UX2,
 	WACOM_22HD,
 	DTK,

index 55fe412b2410..786bf0708904 100644
@@ -38,6 +38,7 @@
 #include <linux/slab.h>
 #include <linux/ratelimit.h>
 #include <linux/aio.h>
+#include <linux/bitops.h>
 
 #include "ext4_jbd2.h"
 #include "xattr.h"

@@ -3922,18 +3923,20 @@ int ext4_get_inode_loc(struct inode *inode, struct ext4_iloc *iloc)
 void ext4_set_inode_flags(struct inode *inode)
 {
 	unsigned int flags = EXT4_I(inode)->i_flags;
+	unsigned int new_fl = 0;
 
-	inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
 	if (flags & EXT4_SYNC_FL)
-		inode->i_flags |= S_SYNC;
+		new_fl |= S_SYNC;
 	if (flags & EXT4_APPEND_FL)
-		inode->i_flags |= S_APPEND;
+		new_fl |= S_APPEND;
 	if (flags & EXT4_IMMUTABLE_FL)
-		inode->i_flags |= S_IMMUTABLE;
+		new_fl |= S_IMMUTABLE;
 	if (flags & EXT4_NOATIME_FL)
-		inode->i_flags |= S_NOATIME;
+		new_fl |= S_NOATIME;
 	if (flags & EXT4_DIRSYNC_FL)
-		inode->i_flags |= S_DIRSYNC;
+		new_fl |= S_DIRSYNC;
+	set_mask_bits(&inode->i_flags,
+		      S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC, new_fl);
 }
 
 /* Propagate flags from i_flags to EXT4_I(inode)->i_flags */

index a3b6b82108b9..c1dde8e00d25 100644
@@ -185,6 +185,21 @@ static inline unsigned long __ffs64(u64 word)
 
 #ifdef __KERNEL__
 
+#ifndef set_mask_bits
+#define set_mask_bits(ptr, _mask, _bits)	\
+({								\
+	const typeof(*ptr) mask = (_mask), bits = (_bits);	\
+	typeof(*ptr) old, new;					\
+								\
+	do {							\
+		old = ACCESS_ONCE(*ptr);			\
+		new = (old & ~mask) | bits;			\
+	} while (cmpxchg(ptr, old, new) != old);		\
+								\
+	new;							\
+})
+#endif
+
 #ifndef find_last_bit
 /**
  * find_last_bit - find the last set bit in a memory region

index 4c842c320c2e..b604564dec5c 100644
@@ -67,7 +67,6 @@ struct mousedev {
 	struct device dev;
 	struct cdev cdev;
 	bool exist;
-	bool is_mixdev;
 
 	struct list_head mixdev_node;
 	bool opened_by_mixdev;

@@ -77,6 +76,9 @@ struct mousedev {
 	int old_x[4], old_y[4];
 	int frac_dx, frac_dy;
 	unsigned long touch;
+
+	int (*open_device)(struct mousedev *mousedev);
+	void (*close_device)(struct mousedev *mousedev);
 };
 
 enum mousedev_emul {

@@ -116,9 +118,6 @@ static unsigned char mousedev_imex_seq[] = { 0xf3, 200, 0xf3, 200, 0xf3, 80 };
 static struct mousedev *mousedev_mix;
 static LIST_HEAD(mousedev_mix_list);
 
-static void mixdev_open_devices(void);
-static void mixdev_close_devices(void);
-
 #define fx(i)  (mousedev->old_x[(mousedev->pkt_count - (i)) & 03])
 #define fy(i)  (mousedev->old_y[(mousedev->pkt_count - (i)) & 03])
 

@@ -428,9 +427,7 @@ static int mousedev_open_device(struct mousedev *mousedev)
 	if (retval)
 		return retval;
 
-	if (mousedev->is_mixdev)
-		mixdev_open_devices();
-	else if (!mousedev->exist)
+	if (!mousedev->exist)
 		retval = -ENODEV;
 	else if (!mousedev->open++) {
 		retval = input_open_device(&mousedev->handle);

@@ -446,9 +443,7 @@ static void mousedev_close_device(struct mousedev *mousedev)
 {
 	mutex_lock(&mousedev->mutex);
 
-	if (mousedev->is_mixdev)
-		mixdev_close_devices();
-	else if (mousedev->exist && !--mousedev->open)
+	if (mousedev->exist && !--mousedev->open)
 		input_close_device(&mousedev->handle);
 
 	mutex_unlock(&mousedev->mutex);

@@ -459,21 +454,29 @@ static void mousedev_close_device(struct mousedev *mousedev)
  * stream. Note that this function is called with mousedev_mix->mutex
  * held.
  */
-static void mixdev_open_devices(void)
+static int mixdev_open_devices(struct mousedev *mixdev)
 {
-	struct mousedev *mousedev;
+	int error;
+
+	error = mutex_lock_interruptible(&mixdev->mutex);
+	if (error)
+		return error;
 
-	if (mousedev_mix->open++)
-		return;
+	if (!mixdev->open++) {
+		struct mousedev *mousedev;
 
-	list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
-		if (!mousedev->opened_by_mixdev) {
-			if (mousedev_open_device(mousedev))
-				continue;
+		list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
+			if (!mousedev->opened_by_mixdev) {
+				if (mousedev_open_device(mousedev))
+					continue;
 
-			mousedev->opened_by_mixdev = true;
+				mousedev->opened_by_mixdev = true;
+			}
 		}
 	}
+
+	mutex_unlock(&mixdev->mutex);
+	return 0;
 }
 
 /*

@@ -481,19 +484,22 @@ static void mixdev_open_devices(void)
  * device. Note that this function is called with mousedev_mix->mutex
  * held.
  */
-static void mixdev_close_devices(void)
+static void mixdev_close_devices(struct mousedev *mixdev)
 {
-	struct mousedev *mousedev;
+	mutex_lock(&mixdev->mutex);
 
-	if (--mousedev_mix->open)
-		return;
+	if (!--mixdev->open) {
+		struct mousedev *mousedev;
 
-	list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
-		if (mousedev->opened_by_mixdev) {
-			mousedev->opened_by_mixdev = false;
-			mousedev_close_device(mousedev);
+		list_for_each_entry(mousedev, &mousedev_mix_list, mixdev_node) {
+			if (mousedev->opened_by_mixdev) {
+				mousedev->opened_by_mixdev = false;
+				mousedev_close_device(mousedev);
+			}
 		}
 	}
+
+	mutex_unlock(&mixdev->mutex);
 }
 
 

@@ -522,7 +528,7 @@ static int mousedev_release(struct inode *inode, struct file *file)
 	mousedev_detach_client(mousedev, client);
 	kfree(client);
 
-	mousedev_close_device(mousedev);
+	mousedev->close_device(mousedev);
 
 	return 0;
 }

@@ -550,7 +556,7 @@ static int mousedev_open(struct inode *inode, struct file *file)
 	client->mousedev = mousedev;
 	mousedev_attach_client(mousedev, client);
 
-	error = mousedev_open_device(mousedev);
+	error = mousedev->open_device(mousedev);
 	if (error)
 		goto err_free_client;
 

@@ -861,16 +867,21 @@ static struct mousedev *mousedev_create(struct input_dev *dev,
 
 	if (mixdev) {
 		dev_set_name(&mousedev->dev, "mice");
+
+		mousedev->open_device = mixdev_open_devices;
+		mousedev->close_device = mixdev_close_devices;
 	} else {
 		int dev_no = minor;
 		/* Normalize device number if it falls into legacy range */
 		if (dev_no < MOUSEDEV_MINOR_BASE + MOUSEDEV_MINORS)
 			dev_no -= MOUSEDEV_MINOR_BASE;
 		dev_set_name(&mousedev->dev, "mouse%d", dev_no);
+
+		mousedev->open_device = mousedev_open_device;
+		mousedev->close_device = mousedev_close_device;
 	}
 
 	mousedev->exist = true;
-	mousedev->is_mixdev = mixdev;
 	mousedev->handle.dev = input_get_device(dev);
 	mousedev->handle.name = dev_name(&mousedev->dev);
 	mousedev->handle.handler = handler;

@@ -919,7 +930,7 @@ static void mousedev_destroy(struct mousedev *mousedev)
 	device_del(&mousedev->dev);
 	mousedev_cleanup(mousedev);
 	input_free_minor(MINOR(mousedev->dev.devt));
-	if (!mousedev->is_mixdev)
+	if (mousedev != mousedev_mix)
 		input_unregister_handle(&mousedev->handle);
 	put_device(&mousedev->dev);
 }

index 26386f9d2569..ef148f997c84 100644
@@ -265,11 +265,22 @@ static int synaptics_identify(struct psmouse *psmouse)
  * Read touchpad resolution and maximum reported coordinates
  * Resolution is left zero if touchpad does not support the query
  */
+
+static const int *quirk_min_max;
+
 static int synaptics_resolution(struct psmouse *psmouse)
 {
 	struct synaptics_data *priv = psmouse->private;
 	unsigned char resp[3];
 
+	if (quirk_min_max) {
+		priv->x_min = quirk_min_max[0];
+		priv->x_max = quirk_min_max[1];
+		priv->y_min = quirk_min_max[2];
+		priv->y_max = quirk_min_max[3];
+		return 0;
+	}
+
 	if (SYN_ID_MAJOR(priv->identity) < 4)
 		return 0;
 

@@ -1485,10 +1496,46 @@ static const struct dmi_system_id olpc_dmi_table[] __initconst = {
 	{ }
 };
 
+static const struct dmi_system_id min_max_dmi_table[] __initconst = {
+#if defined(CONFIG_DMI)
+	{
+		/* Lenovo ThinkPad Helix */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Helix"),
+		},
+		.driver_data = (int []){1024, 5052, 2258, 4832},
+	},
+	{
+		/* Lenovo ThinkPad T440s */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T440"),
+		},
+		.driver_data = (int []){1024, 5112, 2024, 4832},
+	},
+	{
+		/* Lenovo ThinkPad T540p */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T540"),
+		},
+		.driver_data = (int []){1024, 5056, 2058, 4832},
+	},
+#endif
+	{ }
+};
+
 void __init synaptics_module_init(void)
 {
+	const struct dmi_system_id *min_max_dmi;
+
 	impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table);
 	broken_olpc_ec = dmi_check_system(olpc_dmi_table);
+
+	min_max_dmi = dmi_first_match(min_max_dmi_table);
+	if (min_max_dmi)
+		quirk_min_max = min_max_dmi->driver_data;
 }
 
 static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode)

index ef148f997c84..d8d49d10f9bb 100644
@@ -1507,6 +1507,14 @@ static const struct dmi_system_id min_max_dmi_table[] __initconst = {
 		.driver_data = (int []){1024, 5052, 2258, 4832},
 	},
 	{
+		/* Lenovo ThinkPad X240 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X240"),
+		},
+		.driver_data = (int []){1232, 5710, 1156, 4696},
+	},
+	{
 		/* Lenovo ThinkPad T440s */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),

index 888a81a7ea3d..0aaea7ad6cee 100644
@@ -410,7 +410,6 @@ static int cypress_set_input_params(struct input_dev *input,
 	__clear_bit(REL_X, input->relbit);
 	__clear_bit(REL_Y, input->relbit);
 
-	__set_bit(INPUT_PROP_BUTTONPAD, input->propbit);
 	__set_bit(EV_KEY, input->evbit);
 	__set_bit(BTN_LEFT, input->keybit);
 	__set_bit(BTN_RIGHT, input->keybit);

index b232908a6192..4c437efa9d91 100644
@@ -405,11 +405,25 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
 			state = BP_EAGAIN;
 			break;
 		}
+		scrub_page(page);
 
-		pfn = page_to_pfn(page);
-		frame_list[i] = pfn_to_mfn(pfn);
+		frame_list[i] = page_to_pfn(page);
+	}
 
-		scrub_page(page);
+	/*
+	 * Ensure that ballooned highmem pages don't have kmaps.
+	 *
+	 * Do this before changing the p2m as kmap_flush_unused()
+	 * reads PTEs to obtain pages (and hence needs the original
+	 * p2m entry).
+	 */
+	kmap_flush_unused();
+
+	/* Update direct mapping, invalidate P2M, and add to balloon. */
+	for (i = 0; i < nr_pages; i++) {
+		pfn = frame_list[i];
+		frame_list[i] = pfn_to_mfn(pfn);
+		page = pfn_to_page(pfn);
 
 		/*
 		 * Ballooned out frames are effectively replaced with

@@ -433,11 +447,9 @@ static enum bp_state decrease_reservation(unsigned long nr_pages, gfp_t gfp)
 		}
 		put_balloon_scratch_page();
 
-		balloon_append(pfn_to_page(pfn));
+		balloon_append(page);
 	}
 
-	/* Ensure that ballooned highmem pages don't have kmaps. */
-	kmap_flush_unused();
 	flush_tlb_all();
 
 	set_xen_guest_handle(reservation.extent_start, frame_list);

index 5ad38ad07890..bbc8b12fa443 100644
@@ -445,20 +445,10 @@ static inline int pte_same(pte_t a, pte_t b)
 	return a.pte == b.pte;
 }
 
-static inline int pteval_present(pteval_t pteval)
-{
-	/*
-	 * Yes Linus, _PAGE_PROTNONE == _PAGE_NUMA. Expressing it this
-	 * way clearly states that the intent is that protnone and numa
-	 * hinting ptes are considered present for the purposes of
-	 * pagetable operations like zapping, protection changes, gup etc.
-	 */
-	return pteval & (_PAGE_PRESENT | _PAGE_PROTNONE | _PAGE_NUMA);
-}
-
 static inline int pte_present(pte_t a)
 {
-	return pteval_present(pte_flags(a));
+	return pte_flags(a) & (_PAGE_PRESENT | _PAGE_PROTNONE |
+			       _PAGE_NUMA);
 }
 
 #define pte_accessible pte_accessible

index d5af43af64dc..fdc3ba28ca38 100644
@@ -365,7 +365,7 @@ void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
 /* Assume pteval_t is equivalent to all the other *val_t types. */
 static pteval_t pte_mfn_to_pfn(pteval_t val)
 {
-	if (pteval_present(val)) {
+	if (val & _PAGE_PRESENT) {
 		unsigned long mfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
 		unsigned long pfn = mfn_to_pfn(mfn);
 

@@ -381,7 +381,7 @@ static pteval_t pte_mfn_to_pfn(pteval_t val)
 
 static pteval_t pte_pfn_to_mfn(pteval_t val)
 {
-	if (pteval_present(val)) {
+	if (val & _PAGE_PRESENT) {
 		unsigned long pfn = (val & PTE_PFN_MASK) >> PAGE_SHIFT;
 		pteval_t flags = val & PTE_FLAGS_MASK;
 		unsigned long mfn;

index b2b8aa9adc0e..c5121459196b 100644
@@ -40,7 +40,9 @@
 #include <linux/i2c.h>
 #include <linux/io.h>
 #include <linux/dma-mapping.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <sysdev/fsl_soc.h>
 #include <asm/cpm.h>

index 1f7b4caefb6e..c7fa2e420d49 100644
@@ -536,7 +536,7 @@ void i915_gem_suspend_gtt_mappings(struct drm_device *dev)
 	dev_priv->gtt.base.clear_range(&dev_priv->gtt.base,
 				       dev_priv->gtt.base.start / PAGE_SIZE,
 				       dev_priv->gtt.base.total / PAGE_SIZE,
-				       false);
+				       true);
 }
 
 void i915_gem_restore_gtt_mappings(struct drm_device *dev)

index d35f24e231cd..1306d117967d 100644
@@ -119,9 +119,10 @@ static inline void setup_node_to_cpumask_map(void) { }
 
 extern const struct cpumask *cpu_coregroup_mask(int cpu);
 
-#ifdef ENABLE_TOPO_DEFINES
 #define topology_physical_package_id(cpu)	(cpu_data(cpu).phys_proc_id)
 #define topology_core_id(cpu)			(cpu_data(cpu).cpu_core_id)
+
+#ifdef ENABLE_TOPO_DEFINES
 #define topology_core_cpumask(cpu)		(per_cpu(cpu_core_map, cpu))
 #define topology_thread_cpumask(cpu)		(per_cpu(cpu_sibling_map, cpu))
 #endif

index 4021e0172602..30b38e23caa7 100644
@@ -2846,9 +2846,9 @@ static int prepend_name(char **buffer, int *buflen, struct qstr *name)
 	u32 dlen = ACCESS_ONCE(name->len);
 	char *p;
 
-	if (*buflen < dlen + 1)
-		return -ENAMETOOLONG;
 	*buflen -= dlen + 1;
+	if (*buflen < 0)
+		return -ENAMETOOLONG;
 	p = *buffer -= dlen + 1;
 	*p++ = '/';
 	while (dlen--) {

index e35bac7cfdf1..5cdd2b2f18c5 100644
@@ -121,7 +121,7 @@
 #define      MVNETA_GMAC_MAX_RX_SIZE_MASK        0x7ffc
 #define      MVNETA_GMAC0_PORT_ENABLE            BIT(0)
 #define MVNETA_GMAC_CTRL_2                       0x2c08
-#define      MVNETA_GMAC2_PSC_ENABLE             BIT(3)
+#define      MVNETA_GMAC2_PCS_ENABLE             BIT(3)
 #define      MVNETA_GMAC2_PORT_RGMII             BIT(4)
 #define      MVNETA_GMAC2_PORT_RESET             BIT(6)
 #define MVNETA_GMAC_STATUS                       0x2c10

@@ -688,7 +688,7 @@ static void mvneta_port_sgmii_config(struct mvneta_port *pp)
 	u32 val;
 
 	val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
-	val |= MVNETA_GMAC2_PSC_ENABLE;
+	val |= MVNETA_GMAC2_PCS_ENABLE;
 	mvreg_write(pp, MVNETA_GMAC_CTRL_2, val);
 
 	mvreg_write(pp, MVNETA_SGMII_SERDES_CFG, MVNETA_SGMII_SERDES_PROTO);

index 5cdd2b2f18c5..71d9cad02704 100644
@@ -88,8 +88,9 @@
 #define      MVNETA_TX_IN_PRGRS                  BIT(1)
 #define      MVNETA_TX_FIFO_EMPTY                BIT(8)
 #define MVNETA_RX_MIN_FRAME_SIZE                 0x247c
-#define MVNETA_SGMII_SERDES_CFG			 0x24A0
+#define MVNETA_SERDES_CFG			 0x24A0
 #define      MVNETA_SGMII_SERDES_PROTO		 0x0cc7
+#define      MVNETA_RGMII_SERDES_PROTO		 0x0667
 #define MVNETA_TYPE_PRIO                         0x24bc
 #define      MVNETA_FORCE_UNI                    BIT(21)
 #define MVNETA_TXQ_CMD_1                         0x24e4

@@ -665,35 +666,6 @@ static void mvneta_rxq_bm_disable(struct mvneta_port *pp,
 	mvreg_write(pp, MVNETA_RXQ_CONFIG_REG(rxq->id), val);
 }
 
-
-
-/* Sets the RGMII Enable bit (RGMIIEn) in port MAC control register */
-static void mvneta_gmac_rgmii_set(struct mvneta_port *pp, int enable)
-{
-	u32  val;
-
-	val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
-
-	if (enable)
-		val |= MVNETA_GMAC2_PORT_RGMII;
-	else
-		val &= ~MVNETA_GMAC2_PORT_RGMII;
-
-	mvreg_write(pp, MVNETA_GMAC_CTRL_2, val);
-}
-
-/* Config SGMII port */
-static void mvneta_port_sgmii_config(struct mvneta_port *pp)
-{
-	u32 val;
-
-	val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
-	val |= MVNETA_GMAC2_PCS_ENABLE;
-	mvreg_write(pp, MVNETA_GMAC_CTRL_2, val);
-
-	mvreg_write(pp, MVNETA_SGMII_SERDES_CFG, MVNETA_SGMII_SERDES_PROTO);
-}
-
 /* Start the Ethernet port RX and TX activity */
 static void mvneta_port_up(struct mvneta_port *pp)
 {

@@ -2723,12 +2695,15 @@ static void mvneta_port_power_up(struct mvneta_port *pp, int phy_mode)
 	mvreg_write(pp, MVNETA_UNIT_INTR_CAUSE, 0);
 
 	if (phy_mode == PHY_INTERFACE_MODE_SGMII)
-		mvneta_port_sgmii_config(pp);
+		mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_SGMII_SERDES_PROTO);
+	else
+		mvreg_write(pp, MVNETA_SERDES_CFG, MVNETA_RGMII_SERDES_PROTO);
 
-	mvneta_gmac_rgmii_set(pp, 1);
+	val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
+
+	val |= MVNETA_GMAC2_PCS_ENABLE | MVNETA_GMAC2_PORT_RGMII;
 
 	/* Cancel Port Reset */
-	val = mvreg_read(pp, MVNETA_GMAC_CTRL_2);
 	val &= ~MVNETA_GMAC2_PORT_RESET;
 	mvreg_write(pp, MVNETA_GMAC_CTRL_2, val);
 

index d2515435e23f..8fb295350efb 100644
@@ -905,7 +905,7 @@ bio_pageinc(struct bio *bio)
 		/* Non-zero page count for non-head members of
 		 * compound pages is no longer allowed by the kernel.
 		 */
-		page = compound_trans_head(bv->bv_page);
+		page = compound_head(bv->bv_page);
 		atomic_inc(&page->_count);
 	}
 }

@@ -918,7 +918,7 @@ bio_pagedec(struct bio *bio)
 	int i;
 
 	bio_for_each_segment(bv, bio, i) {
-		page = compound_trans_head(bv->bv_page);
+		page = compound_head(bv->bv_page);
 		atomic_dec(&page->_count);
 	}
 }

index 4fb7a8f83c8a..54af4e933695 100644
@@ -186,12 +186,12 @@ static bool is_invalid_reserved_pfn(unsigned long pfn)
 	if (pfn_valid(pfn)) {
 		bool reserved;
 		struct page *tail = pfn_to_page(pfn);
-		struct page *head = compound_trans_head(tail);
+		struct page *head = compound_head(tail);
 		reserved = !!(PageReserved(head));
 		if (head != tail) {
 			/*
 			 * "head" is not a dangling pointer
-			 * (compound_trans_head takes care of that)
+			 * (compound_head takes care of that)
 			 * but the hugepage may have been split
 			 * from under us (and we may not hold a
 			 * reference count on the head page so it can

index b8730d9ebaee..2a8cc94bb641 100644
@@ -121,7 +121,7 @@ u64 stable_page_flags(struct page *page)
 	 * just checks PG_head/PG_tail, so we need to check PageLRU to make
 	 * sure a given page is a thp, not a non-huge compound page.
 	 */
-	else if (PageTransCompound(page) && PageLRU(compound_trans_head(page)))
+	else if (PageTransCompound(page) && PageLRU(compound_head(page)))
 		u |= 1 << KPF_THP;
 
 	/*

index 3935428c57cf..a291552ab767 100644
@@ -156,23 +156,6 @@ static inline int hpage_nr_pages(struct page *page)
 		return HPAGE_PMD_NR;
 	return 1;
 }
-static inline struct page *compound_trans_head(struct page *page)
-{
-	if (PageTail(page)) {
-		struct page *head;
-		head = page->first_page;
-		smp_rmb();
-		/*
-		 * head may be a dangling pointer.
-		 * __split_huge_page_refcount clears PageTail before
-		 * overwriting first_page, so if PageTail is still
-		 * there it means the head pointer isn't dangling.
-		 */
-		if (PageTail(page))
-			return head;
-	}
-	return page;
-}
 
 extern int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 				unsigned long addr, pmd_t pmd, pmd_t *pmdp);

@@ -202,7 +185,6 @@ static inline int split_huge_page(struct page *page)
 	do { } while (0)
 #define split_huge_page_pmd_mm(__mm, __address, __pmd)	\
 	do { } while (0)
-#define compound_trans_head(page) compound_head(page)
 static inline int hugepage_madvise(struct vm_area_struct *vma,
 				   unsigned long *vm_flags, int advice)
 {

index 648bcb007eba..073734339583 100644
@@ -371,8 +371,18 @@ static inline void compound_unlock_irqrestore(struct page *page,
 
 static inline struct page *compound_head(struct page *page)
 {
-	if (unlikely(PageTail(page)))
-		return page->first_page;
+	if (unlikely(PageTail(page))) {
+		struct page *head = page->first_page;
+
+		/*
+		 * page->first_page may be a dangling pointer to an old
+		 * compound page, so recheck that it is still a tail
+		 * page before returning.
+		 */
+		smp_rmb();
+		if (likely(PageTail(page)))
+			return head;
+	}
 	return page;
 }
 

index 0bea2b262a47..c78fff1e9eae 100644
@@ -444,7 +444,7 @@ static void break_cow(struct rmap_item *rmap_item)
 static struct page *page_trans_compound_anon(struct page *page)
 {
 	if (PageTransCompound(page)) {
-		struct page *head = compound_trans_head(page);
+		struct page *head = compound_head(page);
 		/*
 		 * head may actually be splitted and freed from under
 		 * us but it's ok here.

index de476c2f8827..5ea3cf734138 100644
@@ -1659,7 +1659,7 @@ int soft_offline_page(struct page *page, int flags)
 {
 	int ret;
 	unsigned long pfn = page_to_pfn(page);
-	struct page *hpage = compound_trans_head(page);
+	struct page *hpage = compound_head(page);
 
 	if (PageHWPoison(page)) {
 		pr_info("soft offline: %#lx page already poisoned\n", pfn);

index 06f847933eeb..6fca39097766 100644
@@ -369,9 +369,11 @@ void prep_compound_page(struct page *page, unsigned long order)
 	__SetPageHead(page);
 	for (i = 1; i < nr_pages; i++) {
 		struct page *p = page + i;
-		__SetPageTail(p);
 		set_page_count(p, 0);
 		p->first_page = page;
+		/* Make sure p->first_page is always valid for PageTail() */
+		smp_wmb();
+		__SetPageTail(p);
 	}
 }
 

index 0c8f7a471925..aa4da5d9401d 100644
@@ -84,7 +84,7 @@ static void put_compound_page(struct page *page)
 {
 	if (unlikely(PageTail(page))) {
 		/* __split_huge_page_refcount can run under us */
-		struct page *page_head = compound_trans_head(page);
+		struct page *page_head = compound_head(page);
 
 		if (likely(page != page_head &&
 			   get_page_unless_zero(page_head))) {

@@ -222,7 +222,7 @@ bool __get_page_tail(struct page *page)
 	 */
 	unsigned long flags;
 	bool got = false;
-	struct page *page_head = compound_trans_head(page);
+	struct page *page_head = compound_head(page);
 
 	if (likely(page != page_head && get_page_unless_zero(page_head))) {
 		/* Ref to put_compound_page() comment. */

index a99b6c3427b0..59359bec328a 100644
@@ -428,7 +428,7 @@ static bool dccp_new(struct nf_conn *ct, const struct sk_buff *skb,
 	const char *msg;
 	u_int8_t state;
 
-	dh = skb_header_pointer(skb, dataoff, sizeof(_dh), &dh);
+	dh = skb_header_pointer(skb, dataoff, sizeof(_dh), &_dh);
 	BUG_ON(dh == NULL);
 
 	state = dccp_state_table[CT_DCCP_ROLE_CLIENT][dh->dccph_type][CT_DCCP_NONE];

@@ -486,7 +486,7 @@ static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb,
 	u_int8_t type, old_state, new_state;
 	enum ct_dccp_roles role;
 
-	dh = skb_header_pointer(skb, dataoff, sizeof(_dh), &dh);
+	dh = skb_header_pointer(skb, dataoff, sizeof(_dh), &_dh);
 	BUG_ON(dh == NULL);
 	type = dh->dccph_type;
 

@@ -577,7 +577,7 @@ static int dccp_error(struct net *net, struct nf_conn *tmpl,
 	unsigned int cscov;
 	const char *msg;
 
-	dh = skb_header_pointer(skb, dataoff, sizeof(_dh), &dh);
+	dh = skb_header_pointer(skb, dataoff, sizeof(_dh), &_dh);
 	if (dh == NULL) {
 		msg = "nf_ct_dccp: short packet ";
 		goto out_invalid;

index 000d370519d9..53235814ea0f 100644
@@ -329,7 +329,7 @@ static struct cpuidle_state atom_cstates[CPUIDLE_STATE_MAX] = {
 	{
 		.enter = NULL }
 };
-static struct cpuidle_state avn_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state avn_cstates[] __initdata = {
 	{
 		.name = "C1-AVN",
 		.desc = "MWAIT 0x00",

@@ -340,7 +340,7 @@ static struct cpuidle_state avn_cstates[CPUIDLE_STATE_MAX] = {
 	{
 		.name = "C6-AVN",
 		.desc = "MWAIT 0x51",
-		.flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
+		.flags = MWAIT2flg(0x51) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
 		.exit_latency = 15,
 		.target_residency = 45,
 		.enter = &intel_idle },