Patchwork [2.6.32+drm33-longterm] Linux 2.6.32.57+drm33.22

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Submitter Stefan Bader
Date Feb. 14, 2012, 11:14 a.m.
Message ID <1329218062-7007-1-git-send-email-stefan.bader@canonical.com>
Download mbox | patch
Permalink /patch/141102/
State New
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Comments

Stefan Bader - Feb. 14, 2012, 11:14 a.m.
I am announcing the release of the 2.6.32.57+drm33.22 longterm tree.

This tree is based on 2.6.32 and generally has all of the stable updates
applied. Except those to the DRM subsystem, which was based on 2.6.33 and
took updates from that upstream stable as long as that existed. It will
continue to add patches to the DRM subsystem as long as they are valid
according to the stable update rules (Documentation/stable_kernel_rules.txt).
DRM patches for this tree should be sent to kernel-team@lists.ubuntu.com.

This release contains patches from upstream 2.6.32.57, but dropped any patches
to the DRM subsystem.

The updated 2.6.32.y-drm33.z tree can be found at:
  git://git.kernel.org/pub/scm/linux/kernel/git/smb/linux-2.6.32.y-drm33.z.git
or
  git://kernel.ubuntu.com/smb/linux-2.6.32.y-drm33.z.git

and can be browsed through git web via:
  http://git.kernel.org/?p=linux/kernel/git/smb/linux-2.6.32.y-drm33.z.git;a=summary
or
  http://kernel.ubuntu.com/git?p=smb/linux-2.6.32.y-drm33.z.git;a=summary

-Stefan

------

* IB/mlx4: pass SMP vendor-specific attribute MADs to firmware
* mm/filemap_xip.c: fix race condition in xip_file_fault()
* NFSv4: Fix up the callers of nfs4_state_end_reclaim_reboot
* NFSv4: The state manager shouldn't exit on errors that were handled
* NFSv4: Ensure the state manager handles NFS4ERR_NO_GRACE correctly
* NFSv4: Handle NFS4ERR_GRACE when recovering an expired lease.
* NFSv4: Fix open recovery
* rpc client can not deal with ENOSOCK, so translate it into ENOCONN
* udf: Mark LVID buffer as uptodate before marking it dirty
* eCryptfs: Infinite loop due to overflow in ecryptfs_write()
* atmel_lcdfb: fix usage of CONTRAST_CTR in suspend/resume
* Staging: asus_oled: fix image processing
* Staging: android: binder: Don't call dump_stack in binder_vma_open
* Staging: android: binder: Fix crashes when sharing a binder file between processes
* usb: gadget: zero: fix bug in loopback autoresume handling
* usb: Skip PCI USB quirk handling for Netlogic XLP
* USB: usbserial: add new PID number (0xa951) to the ftdi driver
* mmc: cb710 core: Add missing spin_lock_init for irq_lock of struct cb710_chip
* net: fix sk_forward_alloc corruptions
* net: sock_queue_err_skb() dont mess with sk_forward_alloc
* Linux 2.6.32.57

 Makefile                              |    2 +-
 drivers/infiniband/hw/mlx4/mad.c      |    7 ++-----
 drivers/misc/cb710/core.c             |    1 +
 drivers/staging/android/binder.c      |   13 +++++++++++--
 drivers/staging/asus_oled/asus_oled.c |   10 ++++++++--
 drivers/usb/gadget/f_loopback.c       |    2 +-
 drivers/usb/host/pci-quirks.c         |    6 ++++++
 drivers/usb/serial/ftdi_sio.c         |    1 +
 drivers/usb/serial/ftdi_sio_ids.h     |    7 +++++++
 drivers/video/atmel_lcdfb.c           |    2 +-
 fs/ecryptfs/read_write.c              |    4 ++--
 fs/nfs/nfs4proc.c                     |   29 ++++++++++++++++++++++-------
 fs/nfs/nfs4state.c                    |   19 ++++++++++---------
 fs/udf/super.c                        |    6 ++++++
 include/net/sock.h                    |   15 +--------------
 mm/filemap_xip.c                      |    7 ++++++-
 net/core/skbuff.c                     |   30 ++++++++++++++++++++++++++++++
 net/ipv4/udp.c                        |    4 ++--
 net/sunrpc/xprtsock.c                 |    8 ++------
 19 files changed, 120 insertions(+), 53 deletions(-)

Patch

diff --git a/Makefile b/Makefile
index 72508a4..6ecde40 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@ 
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 32
-EXTRAVERSION = .56+drm33.22
+EXTRAVERSION = .57+drm33.22
 NAME = Man-Eating Seals of Antiquity

 # *DOCUMENTATION*
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index 19e68ab..c0206dc 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -252,12 +252,9 @@  int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags,	u8 port_num,
 			return IB_MAD_RESULT_SUCCESS;

 		/*
-		 * Don't process SMInfo queries or vendor-specific
-		 * MADs -- the SMA can't handle them.
+		 * Don't process SMInfo queries -- the SMA can't handle them.
 		 */
-		if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO ||
-		    ((in_mad->mad_hdr.attr_id & IB_SMP_ATTR_VENDOR_MASK) ==
-		     IB_SMP_ATTR_VENDOR_MASK))
+		if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO)
 			return IB_MAD_RESULT_SUCCESS;
 	} else if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT ||
 		   in_mad->mad_hdr.mgmt_class == MLX4_IB_VENDOR_CLASS1   ||
diff --git a/drivers/misc/cb710/core.c b/drivers/misc/cb710/core.c
index b14eab0..e43777e 100644
--- a/drivers/misc/cb710/core.c
+++ b/drivers/misc/cb710/core.c
@@ -244,6 +244,7 @@  static int __devinit cb710_probe(struct pci_dev *pdev,
 	if (err)
 		return err;

+	spin_lock_init(&chip->irq_lock);
 	chip->pdev = pdev;
 	chip->iobase = pcim_iomap_table(pdev)[0];

diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index 99010d4..b9b37ff 100644
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -36,6 +36,7 @@ 

 static DEFINE_MUTEX(binder_lock);
 static DEFINE_MUTEX(binder_deferred_lock);
+static DEFINE_MUTEX(binder_mmap_lock);

 static HLIST_HEAD(binder_procs);
 static HLIST_HEAD(binder_deferred_list);
@@ -614,6 +615,11 @@  static int binder_update_page_range(struct binder_proc *proc, int allocate,
 	if (mm) {
 		down_write(&mm->mmap_sem);
 		vma = proc->vma;
+		if (vma && mm != vma->vm_mm) {
+			pr_err("binder: %d: vma mm and task mm mismatch\n",
+				proc->pid);
+			vma = NULL;
+		}
 	}

 	if (allocate == 0)
@@ -2741,7 +2747,6 @@  static void binder_vma_open(struct vm_area_struct *vma)
 		     proc->pid, vma->vm_start, vma->vm_end,
 		     (vma->vm_end - vma->vm_start) / SZ_1K, vma->vm_flags,
 		     (unsigned long)pgprot_val(vma->vm_page_prot));
-	dump_stack();
 }

 static void binder_vma_close(struct vm_area_struct *vma)
@@ -2785,6 +2790,7 @@  static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
 	}
 	vma->vm_flags = (vma->vm_flags | VM_DONTCOPY) & ~VM_MAYWRITE;

+	mutex_lock(&binder_mmap_lock);
 	if (proc->buffer) {
 		ret = -EBUSY;
 		failure_string = "already mapped";
@@ -2799,6 +2805,7 @@  static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
 	}
 	proc->buffer = area->addr;
 	proc->user_buffer_offset = vma->vm_start - (uintptr_t)proc->buffer;
+	mutex_unlock(&binder_mmap_lock);

 #ifdef CONFIG_CPU_CACHE_VIPT
 	if (cache_is_vipt_aliasing()) {
@@ -2831,7 +2838,7 @@  static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
 	binder_insert_free_buffer(proc, buffer);
 	proc->free_async_space = proc->buffer_size / 2;
 	barrier();
-	proc->files = get_files_struct(current);
+	proc->files = get_files_struct(proc->tsk);
 	proc->vma = vma;

 	/*printk(KERN_INFO "binder_mmap: %d %lx-%lx maps %p\n",
@@ -2842,10 +2849,12 @@  err_alloc_small_buf_failed:
 	kfree(proc->pages);
 	proc->pages = NULL;
 err_alloc_pages_failed:
+	mutex_lock(&binder_mmap_lock);
 	vfree(proc->buffer);
 	proc->buffer = NULL;
 err_get_vm_area_failed:
 err_already_mapped:
+	mutex_unlock(&binder_mmap_lock);
 err_bad_arg:
 	printk(KERN_ERR "binder_mmap: %d %lx-%lx %s failed %d\n",
 	       proc->pid, vma->vm_start, vma->vm_end, failure_string, ret);
diff --git a/drivers/staging/asus_oled/asus_oled.c b/drivers/staging/asus_oled/asus_oled.c
index 8a05725..ea99f05 100644
--- a/drivers/staging/asus_oled/asus_oled.c
+++ b/drivers/staging/asus_oled/asus_oled.c
@@ -349,7 +349,14 @@  static void send_data(struct asus_oled_dev *odev)

 static int append_values(struct asus_oled_dev *odev, uint8_t val, size_t count)
 {
-	while (count-- > 0 && val) {
+	odev->last_val = val;
+
+	if (val == 0) {
+		odev->buf_offs += count;
+		return 0;
+	}
+
+	while (count-- > 0) {
 		size_t x = odev->buf_offs % odev->width;
 		size_t y = odev->buf_offs / odev->width;
 		size_t i;
@@ -400,7 +407,6 @@  static int append_values(struct asus_oled_dev *odev, uint8_t val, size_t count)
 			;
 		}

-		odev->last_val = val;
 		odev->buf_offs++;
 	}

diff --git a/drivers/usb/gadget/f_loopback.c b/drivers/usb/gadget/f_loopback.c
index 6cb29d3..8b4dbfc 100644
--- a/drivers/usb/gadget/f_loopback.c
+++ b/drivers/usb/gadget/f_loopback.c
@@ -373,7 +373,7 @@  int __init loopback_add(struct usb_composite_dev *cdev, bool autoresume)

 	/* support autoresume for remote wakeup testing */
 	if (autoresume)
-		sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+		loopback_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;

 	/* support OTG systems */
 	if (gadget_is_otg(cdev->gadget)) {
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index eae8b18..8213f79 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -498,6 +498,12 @@  hc_init:

 static void __devinit quirk_usb_early_handoff(struct pci_dev *pdev)
 {
+	/* Skip Netlogic mips SoC's internal PCI USB controller.
+	 * This device does not need/support EHCI/OHCI handoff
+	 */
+	if (pdev->vendor == 0x184e)	/* vendor Netlogic */
+		return;
+
 	if (pdev->class == PCI_CLASS_SERIAL_USB_UHCI)
 		quirk_usb_handoff_uhci(pdev);
 	else if (pdev->class == PCI_CLASS_SERIAL_USB_OHCI)
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 85d630e..0a1ccaa 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -840,6 +840,7 @@  static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LOGBOOKML_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_LS_LOGBOOK_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_SCIENCESCOPE_HS_LOGBOOK_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_CINTERION_MC55I_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_DOTEC_PID) },
 	{ USB_DEVICE(QIHARDWARE_VID, MILKYMISTONE_JTAGSERIAL_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 212fc41..7bc0abd 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -1192,3 +1192,10 @@ 
  */
 /* ZigBee controller */
 #define FTDI_RF_R106		0x8A28
+
+/*
+ * Product: HCP HIT GPRS modem
+ * Manufacturer: HCP d.o.o.
+ * ATI command output: Cinterion MC55i
+ */
+#define FTDI_CINTERION_MC55I_PID	0xA951
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index d5e8010..8c5e432 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -1052,7 +1052,7 @@  static int atmel_lcdfb_suspend(struct platform_device *pdev, pm_message_t mesg)
 	 */
 	lcdc_writel(sinfo, ATMEL_LCDC_IDR, ~0UL);

-	sinfo->saved_lcdcon = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_VAL);
+	sinfo->saved_lcdcon = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_CTR);
 	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, 0);
 	if (sinfo->atmel_lcdfb_power_control)
 		sinfo->atmel_lcdfb_power_control(0);
diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
index 6b78546..0404659 100644
--- a/fs/ecryptfs/read_write.c
+++ b/fs/ecryptfs/read_write.c
@@ -134,7 +134,7 @@  int ecryptfs_write(struct file *ecryptfs_file, char *data, loff_t offset,
 		pgoff_t ecryptfs_page_idx = (pos >> PAGE_CACHE_SHIFT);
 		size_t start_offset_in_page = (pos & ~PAGE_CACHE_MASK);
 		size_t num_bytes = (PAGE_CACHE_SIZE - start_offset_in_page);
-		size_t total_remaining_bytes = ((offset + size) - pos);
+		loff_t total_remaining_bytes = ((offset + size) - pos);

 		if (fatal_signal_pending(current)) {
 			rc = -EINTR;
@@ -145,7 +145,7 @@  int ecryptfs_write(struct file *ecryptfs_file, char *data, loff_t offset,
 			num_bytes = total_remaining_bytes;
 		if (pos < offset) {
 			/* remaining zeros to write, up to destination offset */
-			size_t total_remaining_zeros = (offset - pos);
+			loff_t total_remaining_zeros = (offset - pos);

 			if (num_bytes > total_remaining_zeros)
 				num_bytes = total_remaining_zeros;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index eb4421b..3c759df 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1067,6 +1067,7 @@  static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state *
 	clear_bit(NFS_DELEGATED_STATE, &state->flags);
 	smp_rmb();
 	if (state->n_rdwr != 0) {
+		clear_bit(NFS_O_RDWR_STATE, &state->flags);
 		ret = nfs4_open_recover_helper(opendata, FMODE_READ|FMODE_WRITE, &newstate);
 		if (ret != 0)
 			return ret;
@@ -1074,6 +1075,7 @@  static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state *
 			return -ESTALE;
 	}
 	if (state->n_wronly != 0) {
+		clear_bit(NFS_O_WRONLY_STATE, &state->flags);
 		ret = nfs4_open_recover_helper(opendata, FMODE_WRITE, &newstate);
 		if (ret != 0)
 			return ret;
@@ -1081,6 +1083,7 @@  static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state *
 			return -ESTALE;
 	}
 	if (state->n_rdonly != 0) {
+		clear_bit(NFS_O_RDONLY_STATE, &state->flags);
 		ret = nfs4_open_recover_helper(opendata, FMODE_READ, &newstate);
 		if (ret != 0)
 			return ret;
@@ -1490,7 +1493,7 @@  static int _nfs4_open_expired(struct nfs_open_context *ctx, struct nfs4_state *s
 	return ret;
 }

-static inline int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4_state *state)
+static int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4_state *state)
 {
 	struct nfs_server *server = NFS_SERVER(state->inode);
 	struct nfs4_exception exception = { };
@@ -1498,10 +1501,16 @@  static inline int nfs4_do_open_expired(struct nfs_open_context *ctx, struct nfs4

 	do {
 		err = _nfs4_open_expired(ctx, state);
-		if (err != -NFS4ERR_DELAY)
-			break;
-		nfs4_handle_exception(server, err, &exception);
+		switch (err) {
+		default:
+			goto out;
+		case -NFS4ERR_GRACE:
+		case -NFS4ERR_DELAY:
+			nfs4_handle_exception(server, err, &exception);
+			err = 0;
+		}
 	} while (exception.retry);
+out:
 	return err;
 }

@@ -4111,10 +4120,16 @@  static int nfs4_lock_expired(struct nfs4_state *state, struct file_lock *request
 		if (test_bit(NFS_DELEGATED_STATE, &state->flags) != 0)
 			return 0;
 		err = _nfs4_do_setlk(state, F_SETLK, request, 0);
-		if (err != -NFS4ERR_DELAY)
-			break;
-		nfs4_handle_exception(server, err, &exception);
+		switch (err) {
+		default:
+			goto out;
+		case -NFS4ERR_GRACE:
+		case -NFS4ERR_DELAY:
+			nfs4_handle_exception(server, err, &exception);
+			err = 0;
+		}
 	} while (exception.retry);
+out:
 	return err;
 }

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 2fd5287..2a7f163 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1051,15 +1051,19 @@  static void nfs4_state_end_reclaim_nograce(struct nfs_client *clp)
 	clear_bit(NFS4CLNT_RECLAIM_NOGRACE, &clp->cl_state);
 }

-static void nfs4_recovery_handle_error(struct nfs_client *clp, int error)
+static int nfs4_recovery_handle_error(struct nfs_client *clp, int error)
 {
 	switch (error) {
 		case -NFS4ERR_CB_PATH_DOWN:
 			nfs_handle_cb_pathdown(clp);
-			break;
+			return 0;
+		case -NFS4ERR_NO_GRACE:
+			nfs4_state_end_reclaim_reboot(clp);
+			return 0;
 		case -NFS4ERR_STALE_CLIENTID:
 		case -NFS4ERR_LEASE_MOVED:
 			set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
+			nfs4_state_end_reclaim_reboot(clp);
 			nfs4_state_start_reclaim_reboot(clp);
 			break;
 		case -NFS4ERR_EXPIRED:
@@ -1074,6 +1078,7 @@  static void nfs4_recovery_handle_error(struct nfs_client *clp, int error)
 		case -NFS4ERR_SEQ_MISORDERED:
 			set_bit(NFS4CLNT_SESSION_SETUP, &clp->cl_state);
 	}
+	return error;
 }

 static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recovery_ops *ops)
@@ -1093,8 +1098,7 @@  restart:
 		if (status < 0) {
 			set_bit(ops->owner_flag_bit, &sp->so_flags);
 			nfs4_put_state_owner(sp);
-			nfs4_recovery_handle_error(clp, status);
-			return status;
+			return nfs4_recovery_handle_error(clp, status);
 		}
 		nfs4_put_state_owner(sp);
 		goto restart;
@@ -1124,8 +1128,7 @@  static int nfs4_check_lease(struct nfs_client *clp)
 	status = ops->renew_lease(clp, cred);
 	put_rpccred(cred);
 out:
-	nfs4_recovery_handle_error(clp, status);
-	return status;
+	return nfs4_recovery_handle_error(clp, status);
 }

 static int nfs4_reclaim_lease(struct nfs_client *clp)
@@ -1263,7 +1266,7 @@  static void nfs4_state_manager(struct nfs_client *clp)
 			}
 		}
 		/* First recover reboot state... */
-		if (test_and_clear_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state)) {
+		if (test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state)) {
 			status = nfs4_do_reclaim(clp,
 				nfs4_reboot_recovery_ops[clp->cl_minorversion]);
 			if (status == -NFS4ERR_STALE_CLIENTID)
@@ -1309,8 +1312,6 @@  static void nfs4_state_manager(struct nfs_client *clp)
 out_error:
 	printk(KERN_WARNING "Error: state manager failed on NFSv4 server %s"
 			" with error %d\n", clp->cl_hostname, -status);
-	if (test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state))
-		nfs4_state_end_reclaim_reboot(clp);
 	nfs4_clear_state_manager_bit(clp);
 }

diff --git a/fs/udf/super.c b/fs/udf/super.c
index 1e4543c..ee6b3af 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1791,6 +1791,12 @@  static void udf_open_lvid(struct super_block *sb)
 			le16_to_cpu(lvid->descTag.descCRCLength)));

 	lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
+	/*
+	 * We set buffer uptodate unconditionally here to avoid spurious
+	 * warnings from mark_buffer_dirty() when previous EIO has marked
+	 * the buffer as !uptodate
+	 */
+	set_buffer_uptodate(bh);
 	mark_buffer_dirty(bh);
 	sbi->s_lvid_dirty = 0;
 }
diff --git a/include/net/sock.h b/include/net/sock.h
index 9f96394..78adf52 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1354,20 +1354,7 @@  extern void sk_stop_timer(struct sock *sk, struct timer_list* timer);

 extern int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);

-static inline int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)
-{
-	/* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
-	   number of warnings when compiling with -W --ANK
-	 */
-	if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
-	    (unsigned)sk->sk_rcvbuf)
-		return -ENOMEM;
-	skb_set_owner_r(skb, sk);
-	skb_queue_tail(&sk->sk_error_queue, skb);
-	if (!sock_flag(sk, SOCK_DEAD))
-		sk->sk_data_ready(sk, skb->len);
-	return 0;
-}
+extern int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb);

 /*
  *	Recover an error report and clear atomically
diff --git a/mm/filemap_xip.c b/mm/filemap_xip.c
index 1888b2d..e395030 100644
--- a/mm/filemap_xip.c
+++ b/mm/filemap_xip.c
@@ -262,7 +262,12 @@  found:
 							xip_pfn);
 		if (err == -ENOMEM)
 			return VM_FAULT_OOM;
-		BUG_ON(err);
+		/*
+		 * err == -EBUSY is fine, we've raced against another thread
+		 * that faulted-in the same page
+		 */
+		if (err != -EBUSY)
+			BUG_ON(err);
 		return VM_FAULT_NOPAGE;
 	} else {
 		int err, ret = VM_FAULT_OOM;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index a807f8c..025f924 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2977,6 +2977,34 @@  int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer)
 }
 EXPORT_SYMBOL_GPL(skb_cow_data);

+static void sock_rmem_free(struct sk_buff *skb)
+{
+	struct sock *sk = skb->sk;
+
+	atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
+}
+
+/*
+ * Note: We dont mem charge error packets (no sk_forward_alloc changes)
+ */
+int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)
+{
+	if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
+	    (unsigned)sk->sk_rcvbuf)
+		return -ENOMEM;
+
+	skb_orphan(skb);
+	skb->sk = sk;
+	skb->destructor = sock_rmem_free;
+	atomic_add(skb->truesize, &sk->sk_rmem_alloc);
+
+	skb_queue_tail(&sk->sk_error_queue, skb);
+	if (!sock_flag(sk, SOCK_DEAD))
+		sk->sk_data_ready(sk, skb->len);
+	return 0;
+}
+EXPORT_SYMBOL(sock_queue_err_skb);
+
 void skb_tstamp_tx(struct sk_buff *orig_skb,
 		struct skb_shared_hwtstamps *hwtstamps)
 {
@@ -3008,7 +3036,9 @@  void skb_tstamp_tx(struct sk_buff *orig_skb,
 	memset(serr, 0, sizeof(*serr));
 	serr->ee.ee_errno = ENOMSG;
 	serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING;
+
 	err = sock_queue_err_skb(sk, skb);
+
 	if (err)
 		kfree_skb(skb);
 }
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 0ac8833..8e28770 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -440,9 +440,9 @@  void __udp4_lib_err(struct sk_buff *skb, u32 info, struct udp_table *udptable)
 	if (!inet->recverr) {
 		if (!harderr || sk->sk_state != TCP_ESTABLISHED)
 			goto out;
-	} else {
+	} else
 		ip_icmp_error(sk, skb, err, uh->dest, info, (u8 *)(uh+1));
-	}
+
 	sk->sk_err = err;
 	sk->sk_error_report(sk);
 out:
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 683c99d..d37f07c 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -563,8 +563,6 @@  static int xs_udp_send_request(struct rpc_task *task)
 		/* Still some bytes left; set up for a retry later. */
 		status = -EAGAIN;
 	}
-	if (!transport->sock)
-		goto out;

 	switch (status) {
 	case -ENOTSOCK:
@@ -584,7 +582,7 @@  static int xs_udp_send_request(struct rpc_task *task)
 		 * prompts ECONNREFUSED. */
 		clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags);
 	}
-out:
+
 	return status;
 }

@@ -666,8 +664,6 @@  static int xs_tcp_send_request(struct rpc_task *task)
 		status = -EAGAIN;
 		break;
 	}
-	if (!transport->sock)
-		goto out;

 	switch (status) {
 	case -ENOTSOCK:
@@ -687,7 +683,7 @@  static int xs_tcp_send_request(struct rpc_task *task)
 	case -ENOTCONN:
 		clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags);
 	}
-out:
+
 	return status;
 }