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2014-01-07nfsd4: encode_rdattr_error cleanupJ. Bruce Fields1-4/+1
There's a simpler way to write this. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-07nfsd4: nfsd4_encode_fattr cleanupJ. Bruce Fields1-13/+4
Remove some pointless goto's. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-07minor svcauth_gss.c cleanupJ. Bruce Fields1-5/+2
2014-01-07nfsd4: better VERIFY commentJ. Bruce Fields1-2/+4
This confuses me every time. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-07nfsd4: break only delegations when appropriateJ. Bruce Fields1-30/+0
As a temporary fix, nfsd was breaking all leases on unlink, link, rename, and setattr. Now that we can distinguish between leases and delegations, we can be nicer and break only the delegations, and not bother lease-holders with operations they don't care about. And we get to delete some code while we're at it. Note that in the presence of delegations the vfs calls here all return -EWOULDBLOCK instead of blocking, so nfsd threads will not get stuck waiting for delegation returns. Acked-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-06NFSD: Fix a memory leak in nfsd4_create_sessionKinglong Mee1-8/+10
If failed after calling alloc_session but before init_session, nfsd will call __free_session to free se_slots in session. But, session->se_fchannel.maxreqs is not initialized (value is zero). So that, the memory malloced for slots will be lost in free_session_slots for maxreqs is zero. This path sets the information for channel in alloc_session after mallocing slots succeed, instead in init_session. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-06sunrpc: get rid of use_gssp_lockJeff Layton1-24/+18
We can achieve the same result with a cmpxchg(). This also fixes a potential race in use_gss_proxy(). The value of sn->use_gss_proxy could go from -1 to 1 just after we check it in use_gss_proxy() but before we acquire the spinlock. The procfile write would end up returning success but the value would flip to 0 soon afterward. With this method we not only avoid locking but the first "setter" always wins. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-06sunrpc: fix potential race between setting use_gss_proxy and the upcall rpc_clntJeff Layton1-2/+2
An nfsd thread can call use_gss_proxy and find it set to '1' but find gssp_clnt still NULL, so that when it attempts the upcall the result will be an unnecessary -EIO. So, ensure that gssp_clnt is created first, and set the use_gss_proxy variable only if that succeeds. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-06sunrpc: don't wait for write before allowing reads from use-gss-proxy fileJeff Layton3-34/+2
It doesn't make much sense to make reads from this procfile hang. As far as I can tell, only gssproxy itself will open this file and it never reads from it. Change it to just give the present setting of sn->use_gss_proxy without waiting for anything. Note that we do not want to call use_gss_proxy() in this codepath since an inopportune read of this file could cause it to be disabled prematurely. Cc: stable@vger.kernel.org Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-06nfsd: get rid of unused function definitionKinglong Mee1-2/+0
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-06Define op_iattr for nfsd4_open instead using macroKinglong Mee1-2/+1
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-06NFSD: fix compile warning without CONFIG_NFSD_V3Kinglong Mee1-0/+4
Without CONFIG_NFSD_V3, compile will get warning as, fs/nfsd/nfssvc.c: In function 'nfsd_svc': >> fs/nfsd/nfssvc.c:246:60: warning: array subscript is above array bounds [-Warray-bounds] return (nfsd_versions[2] != NULL) || (nfsd_versions[3] != NULL); ^ Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-03NFSD: Don't start lockd when only NFSv4 is runningKinglong Mee2-5/+22
When starting without nfsv2 and nfsv3, nfsd does not need to start lockd (and certainly doesn't need to fail because lockd failed to register with the portmapper). Reported-by: Gareth Williams <gareth@garethwilliams.me.uk> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-03SUNRPC/NFSD: Support a new option for ignoring the result of svc_registerKinglong Mee3-9/+21
NFSv4 clients can contact port 2049 directly instead of needing the portmapper. Therefore a failure to register to the portmapper when starting an NFSv4-only server isn't really a problem. But Gareth Williams reports that an attempt to start an NFSv4-only server without starting portmap fails: #rpc.nfsd -N 2 -N 3 rpc.nfsd: writing fd to kernel failed: errno 111 (Connection refused) rpc.nfsd: unable to set any sockets for nfsd Add a flag to svc_version to tell the rpc layer it can safely ignore an rpcbind failure in the NFSv4-only case. Reported-by: Gareth Williams <gareth@garethwilliams.me.uk> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-03NFSD: fix bad length checking for backchannelKinglong Mee1-2/+7
the length for backchannel checking should be multiplied by sizeof(__be32). Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-03NFSD: fix a leak which can cause CREATE_SESSION failuresKinglong Mee1-1/+1
check_forechannel_attrs gets drc memory, so nfsd must put it when check_backchannel_attrs fails. After many requests with bad back channel attrs, nfsd will deny any client's CREATE_SESSION forever. A new test case named CSESS29 for pynfs will send in another mail. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-03Add missing recording of back channel attrs in nfsd4_sessionKinglong Mee1-0/+2
commit 5b6feee9608dce7afd2646f457c93e612526d1d8 forgot recording the back channel attrs in nfsd4_session. nfsd just check the back channel attars by check_backchannel_attrs, but do not record it in nfsd4_session in the latest kernel. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-03nfsd: get rid of unused macro definitionKinglong Mee1-5/+0
Since defined in Linux-2.6.12-rc2, READTIME has not been used. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-03nfsd: clean up unnecessary temporary variable in nfsd4_decode_fattrKinglong Mee1-9/+3
host_err was only used for nfs4_acl_new. This patch delete it, and return nfserr_jukebox directly. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-03nfsd: using nfsd4_encode_noop for encoding destroy_session/free_stateidKinglong Mee2-25/+2
Get rid of the extra code, using nfsd4_encode_noop for encoding destroy_session and free_stateid. And, delete unused argument (fr_status) int nfsd4_free_stateid. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-03nfsd: clean up an xdr reserved space calculationKinglong Mee1-1/+1
We should use XDR_LEN to calculate reserved space in case the oid is not a multiple of 4. RESERVE_SPACE actually rounds up for us, but it's probably better to be careful here. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-02nfsd: get rid of unused function definitionKinglong Mee1-8/+0
commit 557ce2646e775f6bda734dd92b10d4780874b9c7 "nfsd41: replace page based DRC with buffer based DRC" have remove unused nfsd4_set_statp, but miss the function definition. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-01-02nfsd: calculate the missing length of bitmap in EXCHANGE_IDKinglong Mee2-9/+18
commit 58cd57bfd9db3bc213bf9d6a10920f82095f0114 "nfsd: Fix SP4_MACH_CRED negotiation in EXCHANGE_ID" miss calculating the length of bitmap for spo_must_enforce and spo_must_allow. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-12-12nfsd: revoking of suid/sgid bits after chown() in a consistent wayStanislav Kholmanskikh1-2/+1
There is an inconsistency in the handling of SUID/SGID file bits after chown() between NFS and other local file systems. Local file systems (for example, ext3, ext4, xfs, btrfs) revoke SUID/SGID bits after chown() on a regular file even if the owner/group of the file has not been changed: ~# touch file; chmod ug+s file; chmod u+x file ~# ls -l file -rwsr-Sr-- 1 root root 0 Dec 6 04:49 file ~# chown root file; ls -l file -rwxr-Sr-- 1 root root 0 Dec 6 04:49 file but NFS doesn't do that: ~# touch file; chmod ug+s file; chmod u+x file ~# ls -l file -rwsr-Sr-- 1 root root 0 Dec 6 04:49 file ~# chown root file; ls -l file -rwsr-Sr-- 1 root root 0 Dec 6 04:49 file NFS does that only if the owner/group has been changed: ~# touch file; chmod ug+s file; chmod u+x file ~# ls -l file -rwsr-Sr-- 1 root root 0 Dec 6 05:02 file ~# chown bin file; ls -l file -rwxr-Sr-- 1 bin root 0 Dec 6 05:02 file See: http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html "If the specified file is a regular file, one or more of the S_IXUSR, S_IXGRP, or S_IXOTH bits of the file mode are set, and the process has appropriate privileges, it is implementation-defined whether the set-user-ID and set-group-ID bits are altered." So both variants are acceptable by POSIX. This patch makes NFS to behave like local file systems. Signed-off-by: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-12-12net/sunrpc/cache: simplify code by using hex_pack_byte()Andy Shevchenko1-3/+1
hex_pack_byte() is a fast way to convert a byte in its ASCII representation. We may use it instead of custom approach. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-12-11nfsd: don't try to reuse an expired DRC entry off the listJeff Layton1-32/+4
Currently when we are processing a request, we try to scrape an expired or over-limit entry off the list in preference to allocating a new one from the slab. This is unnecessarily complicated. Just use the slab layer. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-12-10sunrpc: fix some typosWeng Meiling2-5/+4
Signed-off-by: Weng Meiling <wengmeiling.weng@huawei.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-12-10nfsd: start documenting some XDR handling functionsChristoph Hellwig1-0/+19
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-12-10nfsd: don't return high mode bitsAlbert Fluegel2-2/+2
The Linux NFS server replies among other things to a "Check access permission" the following: NFS: File type = 2 (Directory) NFS: Mode = 040755 A netapp server replies here: NFS: File type = 2 (Directory) NFS: Mode = 0755 The RFC 1813 i read: fattr3 struct fattr3 { ftype3 type; mode3 mode; uint32 nlink; ... For the mode bits only the lowest 9 are defined in the RFC As far as I can tell, knfsd has always done this, so apparently it's harmless. Nevertheless, it appears to be wrong. Note this is already correct in the NFSv4 case, only v2 and v3 need fixing. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-12-10nfsd4: update 4.1 nfsd status documentationJ. Bruce Fields1-28/+14
This has gone a little stale. Reported-by: Christoph Hellwig <hch@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-12-10nfsd: when reusing an existing repcache entry, unhash it firstJeff Layton1-1/+8
The DRC code will attempt to reuse an existing, expired cache entry in preference to allocating a new one. It'll then search the cache, and if it gets a hit it'll then free the cache entry that it was going to reuse. The cache code doesn't unhash the entry that it's going to reuse however, so it's possible for it end up designating an entry for reuse and then subsequently freeing the same entry after it finds it. This leads it to a later use-after-free situation and usually some list corruption warnings or an oops. Fix this by simply unhashing the entry that we intend to reuse. That will mean that it's not findable via a search and should prevent this situation from occurring. Cc: stable@vger.kernel.org # v3.10+ Reported-by: Christoph Hellwig <hch@infradead.org> Reported-by: g. artim <gartim@gmail.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-12-06Linux 3.13-rc3v3.13-rc3Linus Torvalds1-1/+1
2013-12-06Merge tag 'trace-fixes-3.13-rc2' of ↵Linus Torvalds2-10/+3
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing fix from Steven Rostedt: "A regression showed up that there's a large delay when enabling all events. This was prevalent when FTRACE_SELFTEST was enabled which enables all events several times, and caused the system bootup to pause for over a minute. This was tracked down to an addition of a synchronize_sched() performed when system call tracepoints are unregistered. The synchronize_sched() is needed between the unregistering of the system call tracepoint and a deletion of a tracing instance buffer. But placing the synchronize_sched() in the unreg of *every* system call tracepoint is a bit overboard. A single synchronize_sched() before the deletion of the instance is sufficient" * tag 'trace-fixes-3.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: tracing: Only run synchronize_sched() at instance deletion time
2013-12-06Merge git://git.kvack.org/~bcrl/aio-nextLinus Torvalds1-2/+6
Pull aio fix from Benjamin LaHaise: "AIO fix from Gu Zheng that fixes a GPF that Dave Jones uncovered with trinity" * git://git.kvack.org/~bcrl/aio-next: aio: clean up aio ring in the fail path
2013-12-06Merge tag 'scsi-fixes' of ↵Linus Torvalds31-57/+129
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "This is a set of nine fixes (and one author update). The libsas one should fix discovery in eSATA devices, the WRITE_SAME one is the largest, but it should fix a lot of problems we've been getting with the emulated RAID devices (they've been effectively lying about support and then firmware has been choking on the commands). The rest are various crash, hang or warn driver fixes" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: [SCSI] bfa: Fix crash when symb name set for offline vport [SCSI] enclosure: fix WARN_ON in dual path device removing [SCSI] pm80xx: Tasklets synchronization fix. [SCSI] pm80xx: Resetting the phy state. [SCSI] pm80xx: Fix for direct attached device. [SCSI] pm80xx: Module author addition [SCSI] hpsa: return 0 from driver probe function on success, not 1 [SCSI] hpsa: do not discard scsi status on aborted commands [SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers [SCSI] libsas: fix usage of ata_tf_to_fis
2013-12-06Merge branch 'for-linus' of ↵Linus Torvalds3-6/+19
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull IMA fixes from James Morris: "Here are two more fixes for IMA" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: ima: properly free ima_template_entry structures ima: Do not free 'entry' before it is initialized
2013-12-06Merge tag 'dt-fixes-for-3.13' of ↵Linus Torvalds12-37/+59
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull devicetree fixes from Rob Herring: - Various DT binding documentation updates - Add Kumar Gala and remove Stephen Warren as DT binding maintainers * tag 'dt-fixes-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dt: binding: reword PowerPC 8xxx GPIO documentation ARM: tegra: delete nvidia,tegra20-spi.txt binding hwmon: ntc_thermistor: Fix typo (pullup-uV -> pullup-uv) of: add vendor prefix for GMT clk: exynos: Fix typos in DT bindings documentation of: Add vendor prefix for LG Corporation Documentation: net: fsl-fec.txt: Add phy-supply entry ARM: dts: doc: Document missing binding for omap5-mpu dt-bindings: add ARMv8 PMU binding MAINTAINERS: remove swarren from DT bindings MAINTAINERS: Add Kumar to Device Tree Binding maintainers group
2013-12-06aio: clean up aio ring in the fail pathGu Zheng1-2/+6
Clean up the aio ring file in the fail path of aio_setup_ring and ioctx_alloc. And maybe it can fix the GPF issue reported by Dave Jones: https://lkml.org/lkml/2013/11/25/898 Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
2013-12-07Merge branch 'free-memory' of ↵James Morris3-6/+19
git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity into for-linus
2013-12-05Merge tag 'pm-3.13-rc3' of ↵Linus Torvalds9-11/+87
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fixes from Rafael Wysocki: - cpufreq regression fix from Bjørn Mork restoring the pre-3.12 behavior of the framework during system suspend/hibernation to avoid garbage sysfs files from being left behind in case of a suspend error - PNP regression fix to restore the correct states of devices after resume from hibernation broken in 3.12. From Dmitry Torokhov. - cpuidle fix to prevent cpuidle device unregistration from crashing due to a NULL pointer dereference if cpuidle has been disabled from the kernel command line. From Konrad Rzeszutek Wilk. - intel_idle fix for the C6 state definition on Intel Avoton/Rangeley processors from Arne Bockholdt. - Power capping framework fix to make the energy_uj sysfs attribute work in accordance with the documentation. From Srinivas Pandruvada. - epoll fix to make it ignore the EPOLLWAKEUP flag if the kernel has been compiled with CONFIG_PM_SLEEP unset (in which case that flag should not have any effect). From Amit Pundir. - cpufreq fix to prevent governor sysfs files from being lost over system suspend/resume in some (arguably unusual) situations. From Viresh Kumar. * tag 'pm-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PowerCap: Fix mode for energy counter PNP: fix restoring devices after hibernation cpuidle: Check for dev before deregistering it. epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled cpufreq: fix garbage kobjects on errors during suspend/resume cpufreq: suspend governors on system suspend/hibernate intel_idle: Fixed C6 state on Avoton/Rangeley processors
2013-12-06Merge branches 'pm-epoll', 'pnp' and 'powercap'Rafael J. Wysocki4-5/+30
* pm-epoll: epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled * pnp: PNP: fix restoring devices after hibernation * powercap: PowerCap: Fix mode for energy counter
2013-12-06Merge branches 'pm-cpuidle' and 'pm-cpufreq'Rafael J. Wysocki5-6/+57
* pm-cpuidle: cpuidle: Check for dev before deregistering it. intel_idle: Fixed C6 state on Avoton/Rangeley processors * pm-cpufreq: cpufreq: fix garbage kobjects on errors during suspend/resume cpufreq: suspend governors on system suspend/hibernate
2013-12-05Merge branch 'stable' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile Pull arch/tile ftrace bug fix from Chris Metcalf: "This fixes a build failure with allyesconfig reported by Fengguang Wu and fixed by Tony Lu" * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: ftrace: default to tilegx if ARCH=tile is specified
2013-12-05Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds11-127/+44
Pull block layer fixes from Jens Axboe: "A small collection of fixes for the current series. It contains: - A fix for a use-after-free of a request in blk-mq. From Ming Lei - A fix for a blk-mq bug that could attempt to dereference a NULL rq if allocation failed - Two xen-blkfront small fixes - Cleanup of submit_bio_wait() type uses in the kernel, unifying that. From Kent - A fix for 32-bit blkg_rwstat reading. I apologize for this one looking mangled in the shortlog, it's entirely my fault for missing an empty line between the description and body of the text" * 'for-linus' of git://git.kernel.dk/linux-block: blk-mq: fix use-after-free of request blk-mq: fix dereference of rq->mq_ctx if allocation fails block: xen-blkfront: Fix possible NULL ptr dereference xen-blkfront: Silence pfn maybe-uninitialized warning block: submit_bio_wait() conversions Update of blkg_stat and blkg_rwstat may happen in bh context
2013-12-05Merge tag 'nfs-for-3.13-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds11-40/+54
Pull NFS client bugfixes from Trond Myklebust: - Stable fix for a NFSv4.1 delegation and state recovery deadlock - Stable fix for a loop on irrecoverable errors when returning delegations - Fix a 3-way deadlock between layoutreturn, open, and state recovery - Update the MAINTAINERS file with contact information for Trond Myklebust - Close needs to handle NFS4ERR_ADMIN_REVOKED - Enabling v4.2 should not recompile nfsd and lockd - Fix a couple of compile warnings * tag 'nfs-for-3.13-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: nfs: fix do_div() warning by instead using sector_div() MAINTAINERS: Update contact information for Trond Myklebust NFSv4.1: Prevent a 3-way deadlock between layoutreturn, open and state recovery SUNRPC: do not fail gss proc NULL calls with EACCES NFSv4: close needs to handle NFS4ERR_ADMIN_REVOKED NFSv4: Update list of irrecoverable errors on DELEGRETURN NFSv4 wait on recovery for async session errors NFS: Fix a warning in nfs_setsecurity NFS: Enabling v4.2 should not recompile nfsd and lockd
2013-12-05ftrace: default to tilegx if ARCH=tile is specifiedTony Lu1-1/+2
This matches the existing behavior in arch/tile/Makefile for defconfig. Reported-by: fengguang.wu@intel.com Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Tony Lu <zlu@tilera.com> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2013-12-05tracing: Only run synchronize_sched() at instance deletion timeSteven Rostedt2-10/+3
It has been reported that boot up with FTRACE_SELFTEST enabled can take a very long time. There can be stalls of over a minute. This was tracked down to the synchronize_sched() called when a system call event is disabled. As the self tests enable and disable thousands of events, this makes the synchronize_sched() get called thousands of times. The synchornize_sched() was added with d562aff93bfb53 "tracing: Add support for SOFT_DISABLE to syscall events" which caused this regression (added in 3.13-rc1). The synchronize_sched() is to protect against the events being accessed when a tracer instance is being deleted. When an instance is being deleted all the events associated to it are unregistered. The synchronize_sched() makes sure that no more users are running when it finishes. Instead of calling synchronize_sched() for all syscall events, we only need to call it once, after the events are unregistered and before the instance is deleted. The event_mutex is held during this action to prevent new users from enabling events. Link: http://lkml.kernel.org/r/20131203124120.427b9661@gandalf.local.home Reported-by: Petr Mladek <pmladek@suse.cz> Acked-by: Tom Zanussi <tom.zanussi@linux.intel.com> Acked-by: Petr Mladek <pmladek@suse.cz> Tested-by: Petr Mladek <pmladek@suse.cz> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-12-05Merge tag 'for-linus' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs MAINTAINERS file update: "I'm still getting settled into new devel hardware etc, but I do have one commit for the next rc. This changes my email over to fb.com, and adds a MAINTAINERS entry for Josef as well" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: update the MAINTAINERS file
2013-12-05Merge tag 'fbdev-fixes-3.13' of ↵Linus Torvalds5-20/+19
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux Pull minor fbdev fixes from Tomi Valkeinen. * tag 'fbdev-fixes-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: video: vt8500: fix error handling in probe() atmel_lcdfb: fix module autoload fbdev: sh_mobile_meram: Fix defined but not used compiler warnings video: kyro: fix incorrect sizes when copying to userspace ARM: OMAPFB: panel-sony-acx565akm: fix bad unlock balance
2013-12-05Merge tag 'sound-3.13-rc3' of ↵Linus Torvalds18-87/+146
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A usual pattern of half ASoC and half HD-audio fixes, although HD-audio fixups have more volumes, in addition to a couple of trivial fixes. Nothing to worry much is found here. For ASoC side: a few fixes for PCM rate constraints calculations, regmap byte-order fix, the rest driver specific fixes (atmel, fsl, omap, kirkwood, wm codecs). For HD-audio: Dell headset and mono out fix, ELD update in polling mode, ALC283 Chromebook fixes, a few fixes for old AD codecs and MBA2, one regression fix" * tag 'sound-3.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (30 commits) ALSA: hda - Fix silent output on MacBook Air 2,1 ALSA: hda - Fix missing ELD info when using jackpoll_ms parameter ALSA: hda/realtek - remove hp_automute_hook from alc283_fixup_chromebook ASoC: wm8731: fix dsp mode configuration ALSA: hda/realtek - Independent of model for HP ALSA: hda - Fix headset mic input after muted internal mic (Dell/Realtek) ALSA: hda - Use always amps for auto-mute on AD1986A codec ALSA: hda/analog - Handle inverted EAPD properly in vmaster hook ALSA: hda - Another fixup for ASUS laptop with ALC660 codec ALSA: atmel: Fix possible array overflow ALSA: hda - Fix complete_all() timing in deferred probes ALSA: hda - Fix bad EAPD setup for HP machines with AD1984A ASoC: core: fix devres parameter in devm_snd_soc_register_card() ASoC: omap: n810: Convert to clk_prepare_enable/clk_disable_unprepare ASoC: fsl: set correct platform drvdata in pcm030_fabric_probe() ASoC: fsl: imx-pcm-fiq: Remove unused 'runtime' variable ASoC: fsl: imx-pcm-fiq: remove bogus period delta calculation ALSA: hda - Fix silent output on ASUS W7J laptop ASoC: core: Use consistent byte ordering in snd_soc_bytes_get ALSA: dice: fix array limits in dice_proc_read() ...
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