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* test: check copy_to/from_user boundary validationKees Cook2014-01-232-0/+14
| | | | | | | | | | | | | | | | | | | | To help avoid an architecture failing to correctly check kernel/user boundaries when handling copy_to_user, copy_from_user, put_user, or get_user, perform some simple tests and fail to load if any of them behave unexpectedly. Specifically, this is to make sure there is a way to notice if things like what was fixed in commit 8404663f81d2 ("ARM: 7527/1: uaccess: explicitly check __user pointer when !CPU_USE_DOMAINS") ever regresses again, for any architecture. Additionally, adds new "user" selftest target, which loads this module. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds2014-01-20110-0/+3362
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: - add RCU torture scripts/tooling - static analysis improvements - update RCU documentation - miscellaneous fixes * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits) rcu: Remove "extern" from function declarations in kernel/rcu/rcu.h rcu: Remove "extern" from function declarations in include/linux/*rcu*.h rcu/torture: Dynamically allocate SRCU output buffer to avoid overflow rcu: Don't activate RCU core on NO_HZ_FULL CPUs rcu: Warn on allegedly impossible rcu_read_unlock_special() from irq rcu: Add an RCU_INITIALIZER for global RCU-protected pointers rcu: Make rcu_assign_pointer's assignment volatile and type-safe bonding: Use RCU_INIT_POINTER() for better overhead and for sparse rcu: Add comment on evaluate-once properties of rcu_assign_pointer(). rcu: Provide better diagnostics for blocking in RCU callback functions rcu: Improve SRCU's grace-period comments rcu: Fix CONFIG_RCU_FANOUT_EXACT for odd fanout/leaf values rcu: Fix coccinelle warnings rcutorture: Stop tracking FSF's postal address rcutorture: Move checkarg to functions.sh rcutorture: Flag errors and warnings with color coding rcutorture: Record results from repeated runs of the same test scenario rcutorture: Test summary at end of run with less chattiness rcutorture: Update comment in kvm.sh listing typical RCU trace events rcutorture: Add tracing-enabled version of TREE08 ...
| * rcutorture: Stop tracking FSF's postal addressPaul E. McKenney2013-12-0317-32/+50
| | | | | | | | | | | | | | | | | | | | | | All of the rcutorture scripts has the usual GPL header, which contains a long-obsolete postal address for FSF. To avoid the need to track the FSF office's movements, this commit substitutes the URL where GPL may be found. Reported-by: Greg KH <gregkh@linuxfoundation.org> Reported-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * rcutorture: Move checkarg to functions.shPaul E. McKenney2013-12-032-22/+27
| | | | | | | | | | Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Flag errors and warnings with color codingPaul E. McKenney2013-12-035-12/+41
| | | | | | | | | | | | | | | | | | | | The output of the rcutorture scripts often requires interpretation, so this commit simplifies this interpretation by tagging messages as BUGs (colored red) or WARNINGs (colored yellow). Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Record results from repeated runs of the same test scenarioPaul E. McKenney2013-12-031-1/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Repeatedly running a given test, for example, by repeating the name as in "--configs "TREE08 TREE08 TREE08" records the results only of the last run of this test. This is because the earlier results are overwritten by the later results. This commit therefore checks for earlier results, using numbered file extensions to distinguish multiple runs. The earlier example would therefore create directories TREE01, TREE01.2, and TREE01.3. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Test summary at end of run with less chattinessPaul E. McKenney2013-12-032-1/+4
| | | | | | | | | | | | | | | | | | The commit causes kvm.sh to invoke kvm-recheck.sh at the end of each run, and causes kvm-recheck.sh to print only the name of the test, not the full path to the corresponding Kconfig file. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Update comment in kvm.sh listing typical RCU trace eventsPaul E. McKenney2013-12-031-1/+1
| | | | | | | | | | Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add tracing-enabled version of TREE08Paul E. McKenney2013-12-031-0/+26
| | | | | | | | | | | | | | | | | | | | The TREE08 Kconfig fragment does not enable tracing, which is appropriate for its test case. However, this can be inconvenient in cases where TREE08 locates RCU bugs. This commit therefore adds a TREE08-T that differs from TREE08 only in enabling CONFIG_RCU_TRACE. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add --kmake-arg argument to kvm.shPaul E. McKenney2013-12-032-1/+8
| | | | | | | | | | | | | | | | | | This commit adds the --kmake-arg to kvm.sh, which allows passing in things like "V=1" to see the build commands, as well as enabling the CROSS_COMPILE= make macro used for cross-building. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add --no-initrd argument to kvm.shPaul E. McKenney2013-12-032-3/+8
| | | | | | | | | | | | | | | | | | | | This commit adds the --no-initrd argument to kvm.sh, which permits initrd to be contained in a root partition specified by the --bootargs argument. Without --no-initrd, the kernel build expects an initrd directory in the same rcutorture directory that contains bin and configs. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add --qemu-args argument to kvm.shPaul E. McKenney2013-12-031-5/+11
| | | | | | | | | | | | | | | | This commits adds the --qemu-args argument to kvm.sh that is required to pass boot devices down through to qemu. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add --bootargs argument to specify additional boot argumentsPaul E. McKenney2013-12-031-1/+7
| | | | | | | | | | | | | | | | This commit allows easy specification of trace_event lists, among other things. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add --buildonly dry-run capabilityPaul E. McKenney2013-12-032-0/+9
| | | | | | | | | | | | | | | | This commit adds --buildonly, which does the builds specified by the --configs argument, but does not boot or test the resulting kernels. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Eliminate configdir argument from kvm-recheck.sh scriptPaul E. McKenney2013-12-031-4/+2
| | | | | | | | | | | | | | | | | | Don't grab the configuration fragment from the configs directory because it might well have been changed since the test was run. Instead, use the ConfigFragment file that was placed in the results directory. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Allow Kconfig-related boot parameters to overridePaul E. McKenney2013-12-031-4/+6
| | | | | | | | | | | | | | | | | | | | | | As it stands, the default kernel boot parameters generated from the Kconfig fragment will override any supplied with the .boot file that can optionally accompany a Kconfig fragment. Rearrange ordering to permit the specific .boot arguments to override those generated by analyzing the Kconfig fragment. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Refactor to enable non-x86 architecturesPaul E. McKenney2013-12-033-13/+102
| | | | | | | | | | | | | | | | | | | | This commit expands the checks for what architecture is running to generate additional qemu-system- commands, then uses the resulting qemu-system- command name to choose different qemu arguments as needed for different architectures. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Eliminate --rcu-kvm argumentPaul E. McKenney2013-12-031-14/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The --rcu-kvm argument was intended to allow the scripts to live in an alternate location. Unfortunately, this prevents the kvm.sh script from using common functions until after it finished parsing arguments, because it doesn't know where to find them until then. However, "cp -a" and "ln -s" work pretty well, so lack of an --rcu-kvm argument can be easily worked around. This commit therefore removes this argument. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Remove decorative qemu argumentPaul E. McKenney2013-12-031-1/+1
| | | | | | | | | | | | | | | | The qemu -name argument doesn't seem to be useful in this environment, so this commit removes it. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Abstract qemu-flavor identificationPaul E. McKenney2013-12-033-6/+36
| | | | | | | | | | | | | | | | | | | | | | | | The task of working out which flavor of qemu to use gets more complex as more types of CPUs are supported. Adding Power makes three in addition to 32-bit and 64-bit x86, so it is time to pull this out into a function. This commit therefore creates an identify_qemu function and also adds a --qemu-cmd command-line argument for the inevitable case where the identify_qemu cannot figure it out. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Eliminate duplicate .config-check codePaul E. McKenney2013-12-031-26/+1
| | | | | | | | | | | | | | | | The commit uses configcheck.sh from within configinit.sh, replacing the imperfect inline expansion that was there before. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Make test output less chattyPaul E. McKenney2013-12-033-13/+16
| | | | | | | | | | | | | | | | This commit drops no-longer-needed diagnostics from the output. Some of them are retained in logfiles, in case they are ever needed. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Refactor TINY_RCU test casesPaul E. McKenney2013-12-038-90/+68
| | | | | | | | | | | | | | | | | | The TINY_RCU test cases were first put in place many years ago, and have been incrementally modified rather than being reworked. This commit therefore completes a long-overdue reworking of the TINY_RCU test cases. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Refactor TREE_RCU test casesPaul E. McKenney2013-12-0334-480/+328
| | | | | | | | | | | | | | | | | | The TREE_RCU test cases were first put in place many years ago, and have been incrementally modified rather than being reworked. This commit therefore completes a long-overdue reworking of the TREE_RCU test cases. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add SRCU Kconfig-fragment filesPaul E. McKenney2013-12-034-0/+18
| | | | | | | | | | | | | | Use .boot facility to ease inclusion of SRCU into automated testing. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add v3.12 version, which adds sysidle testingPaul E. McKenney2013-12-0323-0/+521
| | | | | | | | | | | | | | | | | | The v3.12 version of the kernel added the CONFIG_NO_HZ_FULL_SYSIDLE Kconfig parameter, so this commit adds a version transition at that point. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add per-Kconfig fragment boot parametersPaul E. McKenney2013-12-032-0/+14
| | | | | | | | | | | | | | | | | | | | Some Kconfig fragments require rcutorture module parameters to do optimal testing, for example, a configuration for SRCU would need rcutorture.torture_type=srcu. This commit therefore adds a per-Kconfig-fragment boot-parameter capability. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add per-version default Kconfig fragments and module parametersPaul E. McKenney2013-12-0313-32/+242
| | | | | | | | | | | | | | | | | | Different Kconfig parameters apply to different kernel versions, as do different rcutorture module parameters. This commit allows the rcutorture test scripts to adjust for different kernel versions. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add kernel-version argumentPaul E. McKenney2013-12-0344-1/+906
| | | | | | | | | | Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add datestamp argument to kvm.shPaul E. McKenney2013-12-031-5/+11
| | | | | | | | | | | | | | | | Allow datestamp to be specified to allow tests to be broken up and run in parallel. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
| * rcutorture: Add KVM-based test frameworkPaul E. McKenney2013-12-0340-0/+1650
| | | | | | | | | | | | | | | | This commit adds the test framework that I used to test RCU under KVM. This consists of a group of scripts and Kconfig fragments. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Greg KH <gregkh@linuxfoundation.org>
* | Merge tag 'ktest-v3.14' of ↵Linus Torvalds2014-01-202-32/+147
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest Pull ktest updates from Steven Rostedt: "Here's some basic updates to ktest.pl. They include: - add config to modify the signal to terminate console - update to documentation (missing some config options) - add KERNEL_VERSION variable to use for other configs - add '=~' to let configs eval other configs - add BISECT_TRIES to run multiple tests per git bisect good" * tag 'ktest-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest: Add BISECT_TRIES to bisect test ktest: Add eval '=~' command to modify variables in config file ktest: Add special variable ${KERNEL_VERSION} ktest: Add documentation of CLOSE_CONSOLE_SIGNAL ktest: Make the signal to terminate the console configurable
| * ktest: Add BISECT_TRIES to bisect testSteven Rostedt (Red Hat)2014-01-182-2/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For those cases that it takes several tries to hit a bug, it would be useful for ktest.pl to try a test multiple times before it considers the test as a pass. To accomplish this, BISECT_TRIES ktest config option has been added. It is default to one, as most of the time a bisect only needs to try a test once. But the user can now up this to make ktest run a given test multiple times. The first failure that is detected will set a bisect bad. It only repeats on success. Note, as with all race bugs, there's no guarantee that if it succeeds, it is really a good bisect. But it helps in case the bug is somewhat reliable. You can set BISECT_TRIES to zero, and all tests will be considered good, unless you also set BISECT_MANUAL. Suggested-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * ktest: Add eval '=~' command to modify variables in config fileSteven Rostedt (Red Hat)2013-12-111-21/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With the added variable ${KERNEL_VERSION}, it is useful to be able to use parts of it for other variables. For example, if you want to create a warnings file for each major kernel version to test sub versions against you can create your warnings file with like this: WARNINGS_FILE = warnings-file-${KERNEL_VERSION} But this may add 3.8.12 or something, and we want all 3.8.* to use the same file, and 3.10.* to use another file, and so on. With the eval command we can, by adding: WARNINGS_FILE =~ s/(-file-\d+\.\d+).*/$1/ Which will chop off the extra characters after the 3.8. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * ktest: Add special variable ${KERNEL_VERSION}Steven Rostedt (Red Hat)2013-12-111-8/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a special variable that can be used in other variables called ${KERNEL_VERSION}. This will embed the current kernel version into the variable. For example: WARNINGS_FILE = ${OUTPUT_DIR}/warnings-${KERNEL_VERSION} If the current version is v3.8 then the WARNINGS_FILE will become ${OUTPUT_DIR}/warnings-v3.8 Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * ktest: Add documentation of CLOSE_CONSOLE_SIGNALSteven Rostedt (Red Hat)2013-12-031-0/+7
| | | | | | | | | | | | | | | | | | The sample.conf file needs to document all available options. With the new CLOSE_CONSOE_SIGNAL option, it too needs to be document. Cc: Satoru Takeuchi <satoru.takeuchi@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| * ktest: Make the signal to terminate the console configurableSatoru Takeuchi2013-12-031-1/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently ktest sends SIGINT to terminate the console. However, there are consoles which do not exit by this signal, for example, in my case, "virsh console <guest OS>". In such case, ktest is blocked in close_console(). It prevents this automate test. This patch adds new option CLOSE_CONSOLE_SIGNAL which mean the signal to terminate the console. Since its default value is "INT", the original behavior isn't changed. Link: http://lkml.kernel.org/r/87zjol8pl5.wl%satoru.takeuchi@gmail.com Signed-off-by: Satoru Takeuchi <satoru.takeuchi@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
* | Merge tag 'h8300-for-linus' of ↵Linus Torvalds2013-11-121-6/+0
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging Pull h8300 platform removal from Guenter Roeck: "The patch series has been in -next for more than one relase cycle. I did get a number of Acks, and no objections. H8/300 has been dead for several years, the kernel for it has not compiled for ages, and recent versions of gcc for it are broken. Remove support for it" * tag 'h8300-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: CREDITS: Add Yoshinori Sato for h8300 fs/minix: Drop dependency on H8300 Drop remaining references to H8/300 architecture Drop MAINTAINERS entry for H8/300 watchdog: Drop references to H8300 architecture net/ethernet: Drop H8/300 Ethernet driver net/ethernet: smsc9194: Drop conditional code for H8/300 ide: Drop H8/300 driver Drop support for Renesas H8/300 (h8300) architecture
| * | Drop support for Renesas H8/300 (h8300) architectureGuenter Roeck2013-09-161-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | H8/300 has been dead for several years, and the kernel for it has not compiled for ages. Drop support for it. Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* | | tools/testing/selftests: fix uninitialized variableFelipe Pena2013-10-161-1/+1
|/ / | | | | | | | | | | | | | | | | | | The err variable is intended to receive the timer_create() return before checking it Signed-off-by: Felipe Pena <felipensp@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | selftests: Add test of PMU instruction counting on powerpcMichael Ellerman2013-08-146-1/+349
| | | | | | | | | | | | | | | | | | | | This commit adds a test of instruction counting using the PMU on powerpc. Although the bulk of the code is architecture agnostic, the code needs to run a precisely sized loop which is implemented in assembler. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | selftests: Add support files for powerpc testsMichael Ellerman2013-08-143-0/+186
| | | | | | | | | | | | | | This commit adds support code used by upcoming powerpc tests. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | selftests: Add infrastructure for powerpc selftestsMichael Ellerman2013-08-142-0/+40
| | | | | | | | | | | | | | | | | | | | | | This commit adds a powerpc subdirectory to tools/testing/selftests, for tests that are powerpc specific. On other architectures nothing is built. The makefile supports cross compilation if the user sets ARCH and CROSS_COMPILE. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2013-07-091-39/+20
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Miller: "This is a re-do of the net-next pull request for the current merge window. The only difference from the one I made the other day is that this has Eliezer's interface renames and the timeout handling changes made based upon your feedback, as well as a few bug fixes that have trickeled in. Highlights: 1) Low latency device polling, eliminating the cost of interrupt handling and context switches. Allows direct polling of a network device from socket operations, such as recvmsg() and poll(). Currently ixgbe, mlx4, and bnx2x support this feature. Full high level description, performance numbers, and design in commit 0a4db187a999 ("Merge branch 'll_poll'") From Eliezer Tamir. 2) With the routing cache removed, ip_check_mc_rcu() gets exercised more than ever before in the case where we have lots of multicast addresses. Use a hash table instead of a simple linked list, from Eric Dumazet. 3) Add driver for Atheros CQA98xx 802.11ac wireless devices, from Bartosz Markowski, Janusz Dziedzic, Kalle Valo, Marek Kwaczynski, Marek Puzyniak, Michal Kazior, and Sujith Manoharan. 4) Support reporting the TUN device persist flag to userspace, from Pavel Emelyanov. 5) Allow controlling network device VF link state using netlink, from Rony Efraim. 6) Support GRE tunneling in openvswitch, from Pravin B Shelar. 7) Adjust SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUF for modern times, from Daniel Borkmann and Eric Dumazet. 8) Allow controlling of TCP quickack behavior on a per-route basis, from Cong Wang. 9) Several bug fixes and improvements to vxlan from Stephen Hemminger, Pravin B Shelar, and Mike Rapoport. In particular, support receiving on multiple UDP ports. 10) Major cleanups, particular in the area of debugging and cookie lifetime handline, to the SCTP protocol code. From Daniel Borkmann. 11) Allow packets to cross network namespaces when traversing tunnel devices. From Nicolas Dichtel. 12) Allow monitoring netlink traffic via AF_PACKET sockets, in a manner akin to how we monitor real network traffic via ptype_all. From Daniel Borkmann. 13) Several bug fixes and improvements for the new alx device driver, from Johannes Berg. 14) Fix scalability issues in the netem packet scheduler's time queue, by using an rbtree. From Eric Dumazet. 15) Several bug fixes in TCP loss recovery handling, from Yuchung Cheng. 16) Add support for GSO segmentation of MPLS packets, from Simon Horman. 17) Make network notifiers have a real data type for the opaque pointer that's passed into them. Use this to properly handle network device flag changes in arp_netdev_event(). From Jiri Pirko and Timo Teräs. 18) Convert several drivers over to module_pci_driver(), from Peter Huewe. 19) tcp_fixup_rcvbuf() can loop 500 times over loopback, just use a O(1) calculation instead. From Eric Dumazet. 20) Support setting of explicit tunnel peer addresses in ipv6, just like ipv4. From Nicolas Dichtel. 21) Protect x86 BPF JIT against spraying attacks, from Eric Dumazet. 22) Prevent a single high rate flow from overruning an individual cpu during RX packet processing via selective flow shedding. From Willem de Bruijn. 23) Don't use spinlocks in TCP md5 signing fast paths, from Eric Dumazet. 24) Don't just drop GSO packets which are above the TBF scheduler's burst limit, chop them up so they are in-bounds instead. Also from Eric Dumazet. 25) VLAN offloads are missed when configured on top of a bridge, fix from Vlad Yasevich. 26) Support IPV6 in ping sockets. From Lorenzo Colitti. 27) Receive flow steering targets should be updated at poll() time too, from David Majnemer. 28) Fix several corner case regressions in PMTU/redirect handling due to the routing cache removal, from Timo Teräs. 29) We have to be mindful of ipv4 mapped ipv6 sockets in upd_v6_push_pending_frames(). From Hannes Frederic Sowa. 30) Fix L2TP sequence number handling bugs, from James Chapman." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1214 commits) drivers/net: caif: fix wrong rtnl_is_locked() usage drivers/net: enic: release rtnl_lock on error-path vhost-net: fix use-after-free in vhost_net_flush net: mv643xx_eth: do not use port number as platform device id net: sctp: confirm route during forward progress virtio_net: fix race in RX VQ processing virtio: support unlocked queue poll net/cadence/macb: fix bug/typo in extracting gem_irq_read_clear bit Documentation: Fix references to defunct linux-net@vger.kernel.org net/fs: change busy poll time accounting net: rename low latency sockets functions to busy poll bridge: fix some kernel warning in multicast timer sfc: Fix memory leak when discarding scattered packets sit: fix tunnel update via netlink dt:net:stmmac: Add dt specific phy reset callback support. dt:net:stmmac: Add support to dwmac version 3.610 and 3.710 dt:net:stmmac: Allocate platform data only if its NULL. net:stmmac: fix memleak in the open method ipv6: rt6_check_neigh should successfully verify neigh if no NUD information are available net: ipv6: fix wrong ping_v6_sendmsg return value ...
| * | tools: selftests: psock_tpacket: get rid of macro wrappersDaniel Borkmann2013-07-021-39/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The TPACKET_V3 test code consists of a lot of unecessary macro wrappers that rather obfuscate what members are accessed in what way. So get rid of them and make the code more readable. Also credit Chetan for providing tpacket_v3 example code. Furthermore, get rid of private offset usage, as we do not need it here. Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge branch 'timers-core-for-linus' of ↵Linus Torvalds2013-07-063-0/+230
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer core updates from Thomas Gleixner: "The timer changes contain: - posix timer code consolidation and fixes for odd corner cases - sched_clock implementation moved from ARM to core code to avoid duplication by other architectures - alarm timer updates - clocksource and clockevents unregistration facilities - clocksource/events support for new hardware - precise nanoseconds RTC readout (Xen feature) - generic support for Xen suspend/resume oddities - the usual lot of fixes and cleanups all over the place The parts which touch other areas (ARM/XEN) have been coordinated with the relevant maintainers. Though this results in an handful of trivial to solve merge conflicts, which we preferred over nasty cross tree merge dependencies. The patches which have been committed in the last few days are bug fixes plus the posix timer lot. The latter was in akpms queue and next for quite some time; they just got forgotten and Frederic collected them last minute." * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (59 commits) hrtimer: Remove unused variable hrtimers: Move SMP function call to thread context clocksource: Reselect clocksource when watchdog validated high-res capability posix-cpu-timers: don't account cpu timer after stopped thread runtime accounting posix_timers: fix racy timer delta caching on task exit posix-timers: correctly get dying task time sample in posix_cpu_timer_schedule() selftests: add basic posix timers selftests posix_cpu_timers: consolidate expired timers check posix_cpu_timers: consolidate timer list cleanups posix_cpu_timer: consolidate expiry time type tick: Sanitize broadcast control logic tick: Prevent uncontrolled switch to oneshot mode tick: Make oneshot broadcast robust vs. CPU offlining x86: xen: Sync the CMOS RTC as well as the Xen wallclock x86: xen: Sync the wallclock when the system time is set timekeeping: Indicate that clock was set in the pvclock gtod notifier timekeeping: Pass flags instead of multiple bools to timekeeping_update() xen: Remove clock_was_set() call in the resume path hrtimers: Support resuming with two or more CPUs online (but stopped) timer: Fix jiffies wrap behavior of round_jiffies_common() ...
| * | | selftests: add basic posix timers selftestsFrederic Weisbecker2013-07-033-0/+230
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add some initial basic tests on a few posix timers interface such as setitimer() and timer_settime(). These simply check that expiration happens in a reasonable timeframe after expected elapsed clock time (user time, user + system time, real time, ...). This is helpful for finding basic breakages while hacking on this subsystem. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Stanislaw Gruszka <sgruszka@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com> Cc: Olivier Langlois <olivier@trillion01.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2013-07-041-1/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "The usual stuff from trivial tree" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits) treewide: relase -> release Documentation/cgroups/memory.txt: fix stat file documentation sysctl/net.txt: delete reference to obsolete 2.4.x kernel spinlock_api_smp.h: fix preprocessor comments treewide: Fix typo in printk doc: device tree: clarify stuff in usage-model.txt. open firmware: "/aliasas" -> "/aliases" md: bcache: Fixed a typo with the word 'arithmetic' irq/generic-chip: fix a few kernel-doc entries frv: Convert use of typedef ctl_table to struct ctl_table sgi: xpc: Convert use of typedef ctl_table to struct ctl_table doc: clk: Fix incorrect wording Documentation/arm/IXP4xx fix a typo Documentation/networking/ieee802154 fix a typo Documentation/DocBook/media/v4l fix a typo Documentation/video4linux/si476x.txt fix a typo Documentation/virtual/kvm/api.txt fix a typo Documentation/early-userspace/README fix a typo Documentation/video4linux/soc-camera.txt fix a typo lguest: fix CONFIG_PAE -> CONFIG_x86_PAE in comment ...
| * | | treewide: Fix typo in printkMasanari Iida2013-05-281-1/+1
| |/ / | | | | | | | | | | | | | | | | | | Correct spelling typo in various part of drivers Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | tools/testing/selftests: don't assume the x bit is set on scriptsAndrew Morton2013-07-032-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | The x bit can easily get lost (patch(1) loses it, for example). Reported-by: Ramkumar Ramachandra <artagnon@gmail.com> Cc: Dave Young <dyoung@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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