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2012-01-05Merge branch 'gpio-for-grant' of git://sources.calxeda.com/kernel/linux into ↵Grant Likely7-12/+49
gpio/next Conflicts: drivers/gpio/gpio-pl061.c
2012-01-05NFS: Cache state owners after files are closedChuck Lever1-0/+1
Servers have a finite amount of memory to store NFSv4 open and lock owners. Moreover, servers may have a difficult time determining when they can reap their state owner table, thanks to gray areas in the NFSv4 protocol specification. Thus clients should be careful to reuse state owners when possible. Currently Linux is not too careful. When a user has closed all her files on one mount point, the state owner's reference count goes to zero, and it is released. The next OPEN allocates a new one. A workload that serially opens and closes files can run through a large number of open owners this way. When a state owner's reference count goes to zero, slap it onto a free list for that nfs_server, with an expiry time. Garbage collect before looking for a state owner. This makes state owners for active users available for re-use. Now that there can be unused state owners remaining at umount time, purge the state owner free list when a server is destroyed. Also be sure not to reclaim unused state owners during state recovery. This change has benefits for the client as well. For some workloads, this approach drops the number of OPEN_CONFIRM calls from the same as the number of OPEN calls, down to just one. This reduces wire traffic and thus open(2) latency. Before this patch, untarring a kernel source tarball shows the OPEN_CONFIRM call counter steadily increasing through the test. With the patch, the OPEN_CONFIRM count remains at 1 throughout the entire untar. As long as the expiry time is kept short, I don't think garbage collection should be terribly expensive, although it does bounce the clp->cl_lock around a bit. [ At some point we should rationalize the use of the nfs_server ->destroy method. ] Signed-off-by: Chuck Lever <chuck.lever@oracle.com> [Trond: Fixed a garbage collection race and a few efficiency issues] Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-01-05NFSv4: include bitmap in nfsv4 get acl dataAndy Adamson2-0/+7
The NFSv4 bitmap size is unbounded: a server can return an arbitrary sized bitmap in an FATTR4_WORD0_ACL request. Replace using the nfs4_fattr_bitmap_maxsz as a guess to the maximum bitmask returned by a server with the inclusion of the bitmap (xdr length plus bitmasks) and the acl data xdr length to the (cached) acl page data. This is a general solution to commit e5012d1f "NFSv4.1: update nfs4_fattr_bitmap_maxsz" and fixes hitting a BUG_ON in xdr_shrink_bufhead when getting ACLs. Fix a bug in decode_getacl that returned -EINVAL on ACLs > page when getxattr was called with a NULL buffer, preventing ACL > PAGE_SIZE from being retrieved. Cc: stable@kernel.org Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2012-01-05SUNRPC: Clean up the RPCSEC_GSS service ticket requestsTrond Myklebust2-2/+3
Instead of hacking specific service names into gss_encode_v1_msg, we should just allow the caller to specify the service name explicitly. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: J. Bruce Fields <bfields@redhat.com>
2012-01-05Merge branch 'master' of ↵John W. Linville1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: drivers/net/wireless/b43legacy/dma.c
2012-01-05Merge branches 'hyperv', 'multitouch', 'roccat', 'upstream', ↵Jiri Kosina113-1073/+2331
'upstream-fixes', 'wacom' and 'wiimote' into for-linus
2012-01-05HSI: hsi_char: Add HSI char device kernel configurationAndras Domokos2-0/+2
Add HSI character device kernel configuration Signed-off-by: Andras Domokos <andras.domokos@nokia.com> Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
2012-01-05HSI: hsi_char: Add HSI char device driverAndras Domokos1-0/+63
Add HSI char device driver to the kernel. Signed-off-by: Andras Domokos <andras.domokos@nokia.com> Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com>
2012-01-05HSI: hsi: Introducing HSI frameworkCarlos Chinea1-0/+410
Adds HSI framework in to the linux kernel. High Speed Synchronous Serial Interface (HSI) is a serial interface mainly used for connecting application engines (APE) with cellular modem engines (CMT) in cellular handsets. HSI provides multiplexing for up to 16 logical channels, low-latency and full duplex communication. Signed-off-by: Carlos Chinea <carlos.chinea@nokia.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-01-05Merge branch 'devel-stable' into for-linusRussell King2-1/+3
Conflicts: arch/arm/kernel/setup.c arch/arm/mach-shmobile/board-kota2.c
2012-01-05Input: ucb1400_ts - convert to threaded IRQDmitry Torokhov1-4/+2
Instead of manually create and handler kernel thread switch to threaded IRQ and let kernel IRQ core manage thread for us. Acked-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2012-01-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+1
2012-01-05net/hyperv: Add support for jumbo frame up to 64KBHaiyang Zhang1-1/+1
Allow the user set the MTU up to 65536 for Linux guests running on Hyper-V 2008 R2 or later. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-05usb: ch9: fix up MaxStreams helperFelipe Balbi1-1/+19
According to USB 3.0 Specification Table 9-22, if bmAttributes [4:0] are set to zero, it means "no streams supported", but the way this helper was defined on Linux, we will *always* have one stream which might cause several problems. For example on DWC3, we would tell the controller endpoint has streams enabled and yet start transfers with Stream ID set to 0, which would goof up the host side. While doing that, convert the macro to an inline function due to the different checks we now need. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-05driver core: remove __must_check from device_create_fileGreg Kroah-Hartman1-2/+2
With the conversion of the sysdev to a real struct device, more drivers are calling device_create_file, and some of them don't check the return value, which isn't wise. But as they happen to be in parts of the kernel where a warning is considered an error (i.e. powerpc), this breaks the build. So for now, remove the marking on the function, which fixes the build problems. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-01-04NFC: Export a new attribute nfcid1 in target infoIlan Elias1-0/+2
The nfcid1 is the NFC-A identifier. It is exported as an attribute of the target info (returned as a response to NFC_CMD_GET_TARGET). Signed-off-by: Ilan Elias <ilane@ti.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-01-04[media] dvb: deprecate the usage of ops->info.typeMauro Carvalho Chehab1-1/+1
Mark info.type as deprecated inside the header, recommending the usage of DTV_ENUM_DELSYS DVBv5 command instead. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-04ethtool: Remove ethtool_ops::set_rx_ntuple operationBen Hutchings1-4/+0
All implementations have been converted to implement set_rxnfc instead. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04ethtool: Allow drivers to select RX NFC rule locationsBen Hutchings1-2/+24
Define special location values for RX NFC that request the driver to select the actual rule location. This allows for implementation on devices that use hash-based filter lookup, whereas currently the API is more suited to devices with TCAM lookup or linear search. In ethtool_set_rxnfc() and the compat wrapper ethtool_ioctl(), copy the structure back to user-space after insertion so that the actual location is returned. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-04gpio: pl061: convert to use 0 for no irqRob Herring1-1/+1
We don't want drivers using NO_IRQ, so remove its use. For now, 0 or -1 means no irq until platforms are converted to use 0. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: Linus Walleij <linus.ml.walleij@gmail.com>
2012-01-04dlm: add recovery callbacksDavid Teigland1-5/+66
These new callbacks notify the dlm user about lock recovery. GFS2, and possibly others, need to be aware of when the dlm will be doing lock recovery for a failed lockspace member. In the past, this coordination has been done between dlm and file system daemons in userspace, which then direct their kernel counterparts. These callbacks allow the same coordination directly, and more simply. Signed-off-by: David Teigland <teigland@redhat.com>
2012-01-04lp8727_charger: Some minor fixes for the headerMilo(Woogyom) Kim1-7/+4
Pointer coding style changes : add space between return type and function pointer ex) u8(*get_batt_present) (void) -> u8 (*get_batt_present) (void) Signed-off-by: Woogyom Kim <milo.kim@ti.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-04lp8727_charger: Add header fileKim, Milo1-0/+54
Oops, forgot to 'git add' it. [AV] Signed-off-by: Woogyom Kim <milo.kim@ti.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-04Merge branch 'power-supply-scope' of ↵Anton Vorontsov343-2736/+9275
git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen
2012-01-04power_supply: Add "unknown" in power supply typeKim, Milo1-1/+2
For the default value of power supply type, "unknown" is added. With default prop value, supply type property can be displayed as default - "Unknown". Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-04power_supply: Charger-Manager: Add properties for power-supply-classDonggeun Kim1-0/+17
Charger Manager provides power-supply-class aggregating information from multiple chargers and a fuel-gauge. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-04power_supply: Add initial Charger-Manager driverDonggeun Kim1-0/+130
Because battery health monitoring should be done even when suspended, it needs to wake up and suspend periodically. Thus, userspace battery monitoring may incur too much overhead; every device and task is woken up periodically. Charger Manager uses suspend-again to provide in-suspend monitoring. This patch allows to monitor battery health in-suspend state. Signed-off-by: Donggeun Kim <dg77.kim@samsung.com> Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
2012-01-04vfs: take /proc/*/mounts and friends to fs/proc_namespace.cAl Viro1-26/+4
rationale: that stuff is far tighter bound to fs/namespace.c than to the guts of procfs proper. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: move fsnotify junk to struct mountAl Viro1-5/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: move mnt_devnameAl Viro1-1/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: move mnt_list to struct mountAl Viro1-1/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: move the rest of int fields to struct mountAl Viro1-3/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: mnt_id/mnt_group_id movedAl Viro1-2/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: mnt_ns moved to struct mountAl Viro1-1/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: take mnt_share/mnt_slave/mnt_slave_list and mnt_expire to struct mountAl Viro1-4/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: take mnt_master to struct mountAl Viro1-1/+0
make IS_MNT_SLAVE take struct mount * at the same time Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: take mnt_child/mnt_mounts to struct mountAl Viro1-2/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: all counters taken to struct mountAl Viro1-12/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: move mnt_mountpoint to struct mountAl Viro1-1/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: mnt_parent moved to struct mountAl Viro1-1/+0
the second victim... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04vfs: the first spoils - mnt_hash movedAl Viro1-1/+0
taken out of struct vfsmount into struct mount Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch open and mkdir syscalls to umode_tAl Viro3-9/+9
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch ->path_mknod() to umode_tAl Viro1-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch ->path_mkdir() to umode_tAl Viro1-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch kern_ipc_perm to umode_tAl Viro2-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04consolidate umode_t declarationsAl Viro1-0/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch spu_create(2) to use of SYSCALL_DEFINE4, make it use umode_tAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch mq_open() to umode_tAl Viro2-3/+3
2012-01-04switch miscdevice to umode_tAl Viro1-1/+1
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch securityfs_create_file() to umode_tAl Viro1-2/+2
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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