- 18 Apr, 2008 21 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infinibandLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (104 commits) IB/iser: Don't change itt endianness IB/mlx4: Update module version and release date IPoIB: Handle case when P_Key is deleted and re-added at same index IB/iser: Release connection resources on RDMA_CM_EVENT_DEVICE_REMOVAL event IB/mlx4: Fix incorrect comment IB/mlx4: Fix race when detaching a QP from a multicast group IB/ehca: Support all ibv_devinfo values in query_device() and query_port() RDMA/nes: Free IRQ before killing tasklet IB/mthca: Update module version and release date IB/mlx4: Update QP state if query QP succeeds IB/mthca: Update QP state if query QP succeeds RDMA/amso1100: Add check for NULL reply_msg in c2_intr() IB/mlx4: Add support for resizing CQs IB/mlx4: Add support for modifying CQ moderation parameters IPoIB: Support modifying IPoIB CQ event moderation IB/core: Add support for modify CQ IPoIB: Add basic ethtool support mlx4_core: Increase max number of QPs to 128K RDMA/amso1100: Add support for "send with invalidate" work requests IB/core: Add support for "send with invalidate" work requests ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6: security: enhance DEFAULT_MMAP_MIN_ADDR description SELinux: add netport.[ch] SELinux: Add network port SID cache SELinux: turn mount options strings into defines selinux/ss/services.c should #include <linux/selinux.h> selinux: introduce permissive types selinux: remove ptrace_sid SELinux: requesting no permissions in avc_has_perm_noaudit is a BUG() security: code cleanup security: replace remaining __FUNCTION__ occurrences SELinux: create new open permission selinux: selinux/netlabel.c should #include "netlabel.h" SELinux: unify printk messages SELinux: remove unused backpointers from security objects SELinux: Correct the NetLabel locking for the sk_security_struct
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git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds authored
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (36 commits) [S390] Remove code duplication from monreader / dcssblk. [S390] kernel: show last breaking-event-address on oops [S390] lowcore: Change type of lowcores softirq_pending to __u32. [S390] zcrypt: Comments and kernel-doc cleanup [S390] uaccess: Always access the correct address space. [S390] Fix a lot of sparse warnings. [S390] Convert s390 to GENERIC_CLOCKEVENTS. [S390] genirq/clockevents: move irq affinity prototypes/inlines to interrupt.h [S390] Convert monitor calls to function calls. [S390] qdio (new feature): enhancing info-retrieval from QDIO-adapters [S390] replace remaining __FUNCTION__ occurrences [S390] remove redundant display of free swap space in show_mem() [S390] qdio: remove outdated developerworks link. [S390] Add debug_register_mode() function to debug feature API [S390] crypto: use more descriptive function names for init/exit routines. [S390] switch sched_clock to store-clock-extended. [S390] zcrypt: add support for large random numbers [S390] hw_random: allow rng_dev_read() to return hardware errors. [S390] Vertical cpu management. [S390] cpu topology support for s390. ...
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git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slub: No need for per node slab counters if !SLUB_DEBUG slub: Move map/flag clearing to __free_slab slub: Fixes to per cpu stat output in sysfs slub: Deal with config variable dependencies slub: Reduce #ifdef ZONE_DMA by moving kmalloc_caches_dma near dma logic slub: Initialize per-cpu stats
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Roland McGrath authored
This breaks out the ptrace handling from get_signal_to_deliver into a new subroutine. The actual code there doesn't change, and it gets inlined into nearly identical compiled code. This makes the function substantially shorter and thus easier to read, and it nicely isolates the ptrace magic. Signed-off-by:
Roland McGrath <roland@redhat.com> Acked-by:
Kyle McMartin <kyle@mcmartin.ca> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Li Zefan authored
When I ran a test program to fork mass processes and at the same time 'cat /cgroup/tasks', I got the following oops: ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:72! invalid opcode: 0000 [#1] SMP Pid: 4178, comm: a.out Not tainted (2.6.25-rc9 #72) ... Call Trace: [<c044a5f9>] ? cgroup_exit+0x55/0x94 [<c0427acf>] ? do_exit+0x217/0x5ba [<c0427ed7>] ? do_group_exit+0.65/0x7c [<c0427efd>] ? sys_exit_group+0xf/0x11 [<c0404842>] ? syscall_call+0x7/0xb [<c05e0000>] ? init_cyrix+0x2fa/0x479 ... EIP: [<c04df671>] list_del+0x35/0x53 SS:ESP 0068:ebc7df4 ---[ end trace caffb7332252612b ]--- Fixing recursive fault but reboot is needed! After digging into the code and debugging, I finlly found out a race situation: do_exit() ->cgroup_exit() ->if (!list_empty(&tsk->cg_list)) list_del(&tsk->cg_list); cgroup_iter_start() ->cgroup_enable_task_cg_list() ->list_add(&tsk->cg_list, ..); In this case the list won't be deleted though the process has exited. We got two bug reports in the past, which seem to be the same bug as this one: http://lkml.org/lkml/2008/3/5/332 http://lkml.org/lkml/2007/10/17/224 Actually sometimes I got oops on list_del, sometimes oops on list_add. And I can change my test program a bit to trigger other oops. The patch has been tested both on x86_32 and x86_64. Signed-off-by:Li Zefan <lizf@cn.fujitsu.com> Acked-by:
Paul Menage <menage@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: stable@kernel.org Signed-off-by:
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maximilian attems authored
Got burned by setting the proposed default of 65536 across all Debian archs. Thus proposing to be more specific on which archs you may set this. Also propose a value for arm and friends that doesn't break sshd. Reword to mention working archs ia64 and ppc64 too. Signed-off-by:
maximilian attems <max@stro.at> Cc: Martin Michlmayr <tbm@cyrius.com> Cc: Gordon Farquharson <gordonfarquharson@gmail.com> Acked-by:
Eric Paris <eparis@redhat.com> Signed-off-by:
James Morris <jmorris@namei.org>
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James Morris authored
Thank you, git. Signed-off-by: -
Paul Moore authored
Much like we added a network node cache, this patch adds a network port cache. The design is taken almost completely from the network node cache which in turn was taken from the network interface cache. The basic idea is to cache entries in a hash table based on protocol/port information. The hash function only takes the port number into account since the number of different protocols in use at any one time is expected to be relatively small. Signed-off-by:
Paul Moore <paul.moore@hp.com> Acked-by:
Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by:
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Eric Paris authored
Convert the strings used for mount options into #defines rather than retyping the string throughout the SELinux code. Signed-off-by:
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Adrian Bunk authored
Every file should include the headers containing the externs for its global code. Signed-off-by:
Adrian Bunk <bunk@kernel.org> Signed-off-by:
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Eric Paris authored
Introduce the concept of a permissive type. A new ebitmap is introduced to the policy database which indicates if a given type has the permissive bit set or not. This bit is tested for the scontext of any denial. The bit is meaningless on types which only appear as the target of a decision and never the source. A domain running with a permissive type will be allowed to perform any action similarly to when the system is globally set permissive. Signed-off-by:
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Roland McGrath authored
This changes checks related to ptrace to get rid of the ptrace_sid tracking. It's good to disentangle the security model from the ptrace implementation internals. It's sufficient to check against the SID of the ptracer at the time a tracee attempts a transition. Signed-off-by:
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Eric Paris authored
This patch turns the case where we have a call into avc_has_perm with no requested permissions into a BUG_ON. All callers to this should be in the kernel and thus should be a function we need to fix if we ever hit this. The /selinux/access permission checking it done directly in the security server and not through the avc, so those requests which we cannot control from userspace should not be able to trigger this BUG_ON. Signed-off-by:
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Andrew Morton authored
ERROR: "(foo*)" should be "(foo *)" #168: FILE: security/selinux/hooks.c:2656: + "%s, rc=%d\n", __func__, (char*)value, -rc); total: 1 errors, 0 warnings, 195 lines checked ./patches/security-replace-remaining-__function__-occurences.patch has style problems, please review. If any of these errors are false positives report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Harvey Harrison <harvey.harrison@gmail.com> Cc: James Morris <jmorris@namei.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
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Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
Harvey Harrison <harvey.harrison@gmail.com> Cc: James Morris <jmorris@namei.org> Cc: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by:
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Eric Paris authored
Adds a new open permission inside SELinux when 'opening' a file. The idea is that opening a file and reading/writing to that file are not the same thing. Its different if a program had its stdout redirected to /tmp/output than if the program tried to directly open /tmp/output. This should allow policy writers to more liberally give read/write permissions across the policy while still blocking many design and programing flaws SELinux is so good at catching today. Signed-off-by:
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Adrian Bunk authored
Every file should include the headers containing the externs for its global code. Signed-off-by:
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James Morris authored
Replace "security:" prefixes in printk messages with "SELinux" to help users identify the source of the messages. Also fix a couple of minor formatting issues. Signed-off-by: -
James Morris authored
Remove unused backpoiters from security objects. Signed-off-by: -
Paul Moore authored
The RCU/spinlock locking approach for the nlbl_state in the sk_security_struct was almost certainly overkill. This patch removes both the RCU and spinlock locking, relying on the existing socket locks to handle the case of multiple writers. This change also makes several code reductions possible. Less locking, less code - it's a Good Thing. Signed-off-by:
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- 17 Apr, 2008 19 commits
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Martin Schwidefsky authored
Move the function that prints the segment warning messages found in the monreader driver and the dcssblk driver to the extmem base code. Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com>
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Christian Borntraeger authored
Newer s390 models have a breaking-event-address-recording register. Each time an instruction causes a break in the sequential instruction execution, the address is saved in that hardware register. On a program interrupt the address is copied to the lowcore address 272-279, which makes it software accessible. This patch changes the program check handler and the stack overflow checker to copy the value into the pt_regs argument. The oops output is enhanced to show the last known breaking address. It might give additional information if the stack trace is corrupted. The feature is only available on 64 bit. The new oops output looks like: [---------snip----------] Modules linked in: vmcp sunrpc qeth_l2 dm_mod qeth ccwgroup CPU: 2 Not tainted 2.6.24zlive-host #8 Process modprobe (pid: 4788, task: 00000000bf3d8718, ksp: 00000000b2b0b8e0) Krnl PSW : 0704200180000000 000003e000020028 (vmcp_init+0x28/0xe4 [vmcp]) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:2 PM:0 EA:3 Krnl GPRS: 0000000004000002 000003e000020000 0000000000000000 0000000000000001 000000000015734c ffffffffffffffff 000003e0000b3b00 0000000000000000 000003e00007ca30 00000000b5bb5d40 00000000b5bb5800 000003e0000b3b00 000003e0000a2000 00000000003ecf50 00000000b2b0bd50 00000000b2b0bcb0 Krnl Code: 000003e000020018: c0c000040ff4 larl %r12,3e0000a2000 000003e00002001e: e3e0f0000024 stg %r14,0(%r15) 000003e000020024: a7f40001 brc 15,3e000020026 >000003e000020028: e310c0100004 lg %r1,16(%r12) 000003e00002002e: c020000413dc larl %r2,3e0000a27e6 000003e000020034: c0a00004aee6 larl %r10,3e0000b5e00 000003e00002003a: a7490001 lghi %r4,1 000003e00002003e: a75900f0 lghi %r5,240 Call Trace: ([<000000000014b300>] blocking_notifier_call_chain+0x2c/0x40) [<000000000015735c>] sys_init_module+0x19d8/0x1b08 [<0000000000110afc>] sysc_noemu+0x10/0x16 [<000002000011cda2>] 0x2000011cda2 Last Breaking-Event-Address: [<000003e000020024>] vmcp_init+0x24/0xe4 [vmcp] [---------snip----------] Signed-off-by:Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by:
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Heiko Carstens authored
As noted by akpm: > kernel/time/tick-sched.c: In function 'tick_nohz_stop_sched_tick': > kernel/time/tick-sched.c:229: warning: format '%02x' expects type 'unsigned int', but argument 2 has type '__u64' > > I don't think the architecture's local_softirq_pending() should return u64. > This is the sort of thing which should be consistent across architectures. Signed-off-by:
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Felix Beck authored
Comments, which suggested to be kernel-doc but were not in the right formatting, have been corrected. Additionally some minor cleanup in the comments has been done. Signed-off-by:
Felix Beck <felix.beck@de.ibm.com> Signed-off-by:
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Heiko Carstens authored
The current uaccess page table walk code assumes at a few places that any access is a user space access. This is not correct if somebody has issued a set_fs(KERNEL_DS) in advance. Add code which checks which address space we are in and with this make sure we access the correct address space. This way we get also rid of the dirty if (!currrent-mm) return -EFAULT; hack in futex_atomic_cmpxchg_pt. Signed-off-by:
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Heiko Carstens authored
Most noteable part of this commit is the new local header file entry.h which contains all the function declarations of functions that get only called from asm code or are arch internal. That way we can avoid extern declarations in C files. This is more or less the same that was done for sparc64. Signed-off-by:
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Heiko Carstens authored
This way we get rid of s390's NO_IDLE_HZ and use the generic dynticks variant instead. In addition we get high resolution timers for free. Signed-off-by:
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Russell King authored
> Generic code is not supposed to include irq.h. Replace this include > by linux/hardirq.h instead and add/replace an include of linux/irq.h > in asm header files where necessary. > This change should only matter for architectures that make use of > GENERIC_CLOCKEVENTS. > Architectures in question are mips, x86, arm, sh, powerpc, uml and sparc64. > > I did some cross compile tests for mips, x86_64, arm, powerpc and sparc64. > This patch fixes also build breakages caused by the include replacement in > tick-common.h. I generally dislike adding optional linux/* includes in asm/* includes - I'm nervous about this causing include loops. However, there's a separate point to be discussed here. That is, what interfaces are expected of every architecture in the kernel. If generic code wants to be able to set the affinity of interrupts, then that needs to become part of the interfaces listed in linux/interrupt.h rather than linux/irq.h. So what I suggest is this approach instead (against Linus' tree of a couple of days ago) - we move irq_set_affinity() and irq_can_set_affinity() to linux/interrupt.h, change the linux/irq.h includes to linux/interrupt.h and include asm/irq_regs.h where needed (asm/irq_regs.h is supposed to be rarely used include since not much touches the stacked parent context registers.) Build tested on ARM PXA family kernels and ARM's Realview platform kernels which both use genirq. [ tglx@linutronix.de: add GENERIC_HARDIRQ dependencies ] Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Heiko Carstens authored
Remove the program check generating monitor calls and use function calls instead. Theres is no real advantage in using monitor calls, but they do make debugging harder, because of all the program checks it generates. Signed-off-by:
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Ursula Braun authored
Next generation of OSA adapters allows retrieval of further self-describing infos. This is the preparational infrastructure patch for further exploitation in the qeth driver. Signed-off-by:
Ursula Braun <braunu@de.ibm.com> Signed-off-by:
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Harvey Harrison authored
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by:
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Johannes Weiner authored
Signed-off-by:
Johannes Weiner <hannes@saeurebad.de> Signed-off-by:
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Ursula Braun authored
Signed-off-by:
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Michael Holzheu authored
The new function supports setting of permissions for the debugfs files created by the debug feature. In addition to that, the function provides uid and gid as parameters for future use. Currently only root is allowed for uid and gid. Signed-off-by:
Michael Holzheu <holzheu@de.ibm.com> Signed-off-by:
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Heiko Carstens authored
Not very helpful when code dies in "init". See also http://lkml.org/lkml/2008/3/26/557 . Signed-off-by:
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Jan Glauber authored
Add get_clock_xt to read an 8 byte clock value using store clock extended (STCKE) and use get_clock_xt for sched_clock. STCKE should be faster than STCK on newer machines. Signed-off-by:
Jan Glauber <jan.glauber@de.ibm.com> Signed-off-by:
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Ralph Wuerthner authored
This patch allows user space applications to access large amounts of truly random data. The random data source is the build-in hardware random number generator on the CEX2C cards. Signed-off-by:
Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by:
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Ralph Wuerthner authored
The api for hardware random number generators is currently limited to devices that never fail. If the hardware is registered as a source for random numbers it has to work. This prevents the use of i/o based random number devices where the i/o might fail. Add a check for errors after the read from a hardware random number device. This patch is required to support large random numbers retrieved from the CEX2C cards on System z. Signed-off-by:
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Heiko Carstens authored
If vertical cpu polarization is active then the hypervisor will dispatch certain cpus for a longer time than other cpus for maximum performance. For example if a guest would have three virtual cpus, each of them with a share of 33 percent, then in case of vertical cpu polarization all of the processing time would be combined to a single cpu which would run all the time, while the other two cpus would get nearly no cpu time. There are three different types of vertical cpus: high, medium and low. Low cpus hardly get any real cpu time, while high cpus get a full real cpu. Medium cpus get something in between. In order to switch between the two possible modes (default is horizontal) a 0 for horizontal polarization or a 1 for vertical polarization must be written to the dispatching sysfs attribute: /sys/devices/system/cpu/dispatching The polarization of each single cpu can be figured out by the polarization sysfs attribute of each cpu: /sys/devices/system/cpu/cpuX/polarization horizontal, vertical:high, vertical:medium, vertical:low or unknown. When switching polarization the polarization attribute may contain the value unknown until the configuration change is done and the kernel has figured out the new polarization of each cpu. Note that running a system with different types of vertical cpus may result in significant performance regressions. If possible only one type of vertical cpus should be used. All other cpus should be offlined. Signed-off-by:
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