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* Audit requires CONFIG_NETChris Wright2005-05-11
| | | | | | | | Audit now actually requires netlink. So make it depend on CONFIG_NET, and remove the inline dependencies on CONFIG_NET. Signed-off-by: Chris Wright <chrisw@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* AUDIT: Properly account for alignment difference in nlmsg_len.Chris Wright2005-05-11
| | | | | Signed-off-by: Chris Wright <chrisw@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* AUDIT: Fix abuse of va_args. David Woodhouse2005-05-10
| | | | | | We're not allowed to use args twice; we need to use va_copy. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* AUDIT: pass size argument to audit_expand().David Woodhouse2005-05-10
| | | | | | | Let audit_expand() know how much it's expected to grow the buffer, in the case that we have that information to hand. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* AUDIT: Fix reported length of audit messages.Steve Grubb2005-05-10
| | | | | | | | We were setting nlmsg_len to skb->len, but we should be subtracting the size of the header. From: Steve Grubb <sgrubb@redhat.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* AUDIT: Honour gfp_mask in audit_buffer_alloc()David Woodhouse2005-05-06
| | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* AUDIT: buffer audit msgs directly to skbChris Wright2005-05-06
| | | | | | | | | | | Drop the use of a tmp buffer in the audit_buffer, and just buffer directly to the skb. All header data that was temporarily stored in the audit_buffer can now be stored directly in the netlink header in the skb. Resize skb as needed. This eliminates the extra copy (and the audit_log_move function which was responsible for copying). Signed-off-by: Chris Wright <chrisw@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* AUDIT: expand audit tmp buffer as neededChris Wright2005-05-06
| | | | | | | | | | | Introduce audit_expand and make the audit_buffer use a dynamic buffer which can be resized. When audit buffer is moved to skb it will not be fragmented across skb's, so we can eliminate the sklist in the audit_buffer. During audit_log_move, we simply copy the full buffer into a single skb, and then audit_log_drain sends it on. Signed-off-by: Chris Wright <chrisw@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* AUDIT: Add helper functions to allocate and free audit_buffers.Chris Wright2005-05-06
| | | | | Signed-off-by: Chris Wright <chrisw@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* The attached patch addresses the problem with getting the audit daemon Steve Grubb2005-05-06
| | | | | | | | | | | | | | | | | | | | | | | shutdown credential information. It creates a new message type AUDIT_TERM_INFO, which is used by the audit daemon to query who issued the shutdown. It requires the placement of a hook function that gathers the information. The hook is after the DAC & MAC checks and before the function returns. Racing threads could overwrite the uid & pid - but they would have to be root and have policy that allows signalling the audit daemon. That should be a manageable risk. The userspace component will be released later in audit 0.7.2. When it receives the TERM signal, it queries the kernel for shutdown information. When it receives it, it writes the message and exits. The message looks like this: type=DAEMON msg=auditd(1114551182.000) auditd normal halt, sending pid=2650 uid=525, auditd pid=1685 Signed-off-by: Steve Grubb <sgrubb@redhat.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [PATCH] correctly name the Shell sortDomen Puncer2005-05-05
| | | | | | | | | | As per http://www.nist.gov/dads/HTML/shellsort.html, this should be referred to as a Shell sort. Shell-Metzner is a misnomer. Signed-off-by: Daniel Dickman <didickman@yahoo.com> Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] setitimer timer expires too earlyPaulo Marques2005-05-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It seems that the code responsible for this is in kernel/itimer.c:126: p->signal->real_timer.expires = jiffies + interval; add_timer(&p->signal->real_timer); If you request an interval of, lets say 900 usecs, the interval given by timeval_to_jiffies will be 1. If you request this when we are half-way between two timer ticks, the interval will only give 400 usecs. If we want to guarantee that we never ever give intervals less than requested, the simple solution would be to change that to: p->signal->real_timer.expires = jiffies + interval + 1; This however will produce pathological cases, like having a idle system being requested 1 ms timeouts will give systematically 2 ms timeouts, whereas currently it simply gives a few usecs less than 1 ms. The complex (and more computationally expensive) solution would be to check the gettimeofday time, and compute the correct number of jiffies. This way, if we request a 300 usecs timer 200 usecs inside the timer tick, we can wait just one tick, but not if we are 800 usecs inside the tick. This would also mean that we would have to lock preemption during these computations to avoid races, etc. I've searched the archives but couldn't find this particular issue being discussed before. Attached is a patch to do the simple solution, in case anybody thinks that it should be used. Signed-Off-By: Paulo Marques <pmarques@grupopie.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kprobes: Allow multiple kprobes at the same addressAnanth N Mavinakayanahalli2005-05-05
| | | | | | | | | | Allow registration of multiple kprobes at an address in an architecture agnostic way. Corresponding handlers will be invoked in a sequence. But, a kprobe and a jprobe can't (yet) co-exist at the same address. Signed-off-by: Ananth N Mavinakayanahalli <amavin@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kprobes: Oops! in unregister_kprobe()Prasanna S Panchamukhi2005-05-05
| | | | | | | | | | kernel oops! when unregister_kprobe() is called on a non-registered kprobe. This patch fixes the above problem by checking if the probe exists before unregistering. Signed-off-by: Prasanna S Panchamukhi <prasanna@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc64: remove hidden -fno-omit-frame-pointer for schedule.cAnton Blanchard2005-05-05
| | | | | | | | | | | | | | | | While looking at code generated by gcc4.0 I noticed some functions still had frame pointers, even after we stopped ppc64 from defining CONFIG_FRAME_POINTER. It turns out kernel/Makefile hardwires -fno-omit-frame-pointer on when compiling schedule.c. Create CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER and define it on architectures that dont require frame pointers in sched.c code. (akpm: blame me for the name) Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ppc32: platform-specific functions missing from kallsyms.David Woodhouse2005-05-05
| | | | | | | | | | | | | | | The PPC32 kernel puts platform-specific functions into separate sections so that unneeded parts of it can be freed when we've booted and actually worked out what we're running on today. This makes kallsyms ignore those functions, because they're not between _[se]text or _[se]inittext. Rather than teaching kallsyms about the various pmac/chrp/etc sections, this patch adds '_[se]extratext' markers for kallsyms. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.gitDavid Woodhouse2005-05-05
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| * Automatic merge of ↵Linus Torvalds2005-05-04
| |\ | | | | | | | | | rsync://rsync.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6.git
| | * [patch] MCA recovery module undefined symbol fixRuss Anderson2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The patch "MCA recovery improvements" added do_exit to mca_drv.c. That's fine when the mca recovery code is built in the kernel (CONFIG_IA64_MCA_RECOVERY=y) but breaks building the mca recovery code as a module (CONFIG_IA64_MCA_RECOVERY=m). Most users are currently building this as a module, as loading and unloading the module provides a very convenient way to turn on/off error recovery. This patch exports do_exit, so mca_drv.c can build as a module. Signed-off-by: Russ Anderson (rja@sgi.com) Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | [NETLINK]: Synchronous message processing.Herbert Xu2005-05-03
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Let's recap the problem. The current asynchronous netlink kernel message processing is vulnerable to these attacks: 1) Hit and run: Attacker sends one or more messages and then exits before they're processed. This may confuse/disable the next netlink user that gets the netlink address of the attacker since it may receive the responses to the attacker's messages. Proposed solutions: a) Synchronous processing. b) Stream mode socket. c) Restrict/prohibit binding. 2) Starvation: Because various netlink rcv functions were written to not return until all messages have been processed on a socket, it is possible for these functions to execute for an arbitrarily long period of time. If this is successfully exploited it could also be used to hold rtnl forever. Proposed solutions: a) Synchronous processing. b) Stream mode socket. Firstly let's cross off solution c). It only solves the first problem and it has user-visible impacts. In particular, it'll break user space applications that expect to bind or communicate with specific netlink addresses (pid's). So we're left with a choice of synchronous processing versus SOCK_STREAM for netlink. For the moment I'm sticking with the synchronous approach as suggested by Alexey since it's simpler and I'd rather spend my time working on other things. However, it does have a number of deficiencies compared to the stream mode solution: 1) User-space to user-space netlink communication is still vulnerable. 2) Inefficient use of resources. This is especially true for rtnetlink since the lock is shared with other users such as networking drivers. The latter could hold the rtnl while communicating with hardware which causes the rtnetlink user to wait when it could be doing other things. 3) It is still possible to DoS all netlink users by flooding the kernel netlink receive queue. The attacker simply fills the receive socket with a single netlink message that fills up the entire queue. The attacker then continues to call sendmsg with the same message in a loop. Point 3) can be countered by retransmissions in user-space code, however it is pretty messy. In light of these problems (in particular, point 3), we should implement stream mode netlink at some point. In the mean time, here is a patch that implements synchronous processing. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [PATCH] add new audit data to last skbChris Wright2005-05-03
| | | | | | | | | | | | | | | | | | | | | | | | When adding more formatted audit data to an skb for delivery to userspace, the kernel will attempt to reuse an skb that has spare room. However, if the audit message has already been fragmented to multiple skb's, the search for spare room in the skb uses the head of the list. This will corrupt the audit message with trailing bytes being placed midway through the stream. Fix is to look at the end of the list. Signed-off-by: Chris Wright <chrisw@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.gitDavid Woodhouse2005-05-03
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| * [PATCH] make lots of things staticAdrian Bunk2005-05-01
| | | | | | | | | | | | | | | | Another large rollup of various patches from Adrian which make things static where they were needlessly exported. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] DocBook: fix some descriptionsMartin Waitz2005-05-01
| | | | | | | | | | | | | | | | | | Some KernelDoc descriptions are updated to match the current code. No code changes. Signed-off-by: Martin Waitz <tali@admingilde.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] DocBook: changes and extensions to the kernel documentationPavel Pisa2005-05-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have recompiled Linux kernel 2.6.11.5 documentation for me and our university students again. The documentation could be extended for more sources which are equipped by structured comments for recent 2.6 kernels. I have tried to proceed with that task. I have done that more times from 2.6.0 time and it gets boring to do same changes again and again. Linux kernel compiles after changes for i386 and ARM targets. I have added references to some more files into kernel-api book, I have added some section names as well. So please, check that changes do not break something and that categories are not too much skewed. I have changed kernel-doc to accept "fastcall" and "asmlinkage" words reserved by kernel convention. Most of the other changes are modifications in the comments to make kernel-doc happy, accept some parameters description and do not bail out on errors. Changed <pid> to @pid in the description, moved some #ifdef before comments to correct function to comments bindings, etc. You can see result of the modified documentation build at http://cmp.felk.cvut.cz/~pisa/linux/lkdb-2.6.11.tar.gz Some more sources are ready to be included into kernel-doc generated documentation. Sources has been added into kernel-api for now. Some more section names added and probably some more chaos introduced as result of quick cleanup work. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> Signed-off-by: Martin Waitz <tali@admingilde.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] convert that currently tests _NSIG directly to use valid_signal()Jesper Juhl2005-05-01
| | | | | | | | | | | | | | | | | | Convert most of the current code that uses _NSIG directly to instead use valid_signal(). This avoids gcc -W warnings and off-by-one errors. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] consolidate sys_shmatStephen Rothwell2005-05-01
| | | | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] Change synchronize_kernel to _rcu and _schedPaul E. McKenney2005-05-01
| | | | | | | | | | | | | | | | | | | | This patch changes calls to synchronize_kernel(), deprecated in the earlier "Deprecate synchronize_kernel, GPL replacement" patch to instead call the new synchronize_rcu() and synchronize_sched() APIs. Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] Deprecate synchronize_kernel, GPL replacementPaul E. McKenney2005-05-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The synchronize_kernel() primitive is used for quite a few different purposes: waiting for RCU readers, waiting for NMIs, waiting for interrupts, and so on. This makes RCU code harder to read, since synchronize_kernel() might or might not have matching rcu_read_lock()s. This patch creates a new synchronize_rcu() that is to be used for RCU readers and a new synchronize_sched() that is used for the rest. These two new primitives currently have the same implementation, but this is might well change with additional real-time support. Both new primitives are GPL-only, the old primitive is deprecated. Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] kernel/rcupdate.c: make the exports EXPORT_SYMBOL_GPLPaul E. McKenney2005-05-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The gpl exports need to be put back. Moving them to GPL -- but in a measured manner, as I proposed on this list some months ago -- is fine. Changing these particular exports precipitously is most definitely -not- fine. Here is my earlier proposal: http://marc.theaimsgroup.com/?l=linux-kernel&m=110520930301813&w=2 See below for a patch that puts the exports back, along with an updated version of my earlier patch that starts the process of moving them to GPL. I will also be following this message with RFC patches that introduce two (EXPORT_SYMBOL_GPL) interfaces to replace synchronize_kernel(), which then becomes deprecated. Signed-off-by: <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] clean up kernel messagesMatt Mackall2005-05-01
| | | | | | | | | | | | | | | | | | | | | | | | Arrange for all kernel printks to be no-ops. Only available if CONFIG_EMBEDDED. This patch saves about 375k on my laptop config and nearly 100k on minimal configs. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] nice and rt-prio rlimitsMatt Mackall2005-05-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a pair of rlimits for allowing non-root tasks to raise nice and rt priorities. Defaults to traditional behavior. Originally written by Chris Wright. The patch implements a simple rlimit ceiling for the RT (and nice) priorities a task can set. The rlimit defaults to 0, meaning no change in behavior by default. A value of 50 means RT priority levels 1-50 are allowed. A value of 100 means all 99 privilege levels from 1 to 99 are allowed. CAP_SYS_NICE is blanket permission. (akpm: see http://www.uwsg.iu.edu/hypermail/linux/kernel/0503.1/1921.html for tips on integrating this with PAM). Signed-off-by: Matt Mackall <mpm@selenic.com> Acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * [PATCH] use smp_mb/wmb/rmb where possibleakpm@osdl.org2005-05-01
| | | | | | | | | | | | | | | | | | Replace a number of memory barriers with smp_ variants. This means we won't take the unnecessary hit on UP machines. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| * Remove bogus BUG() in kernel/exit.cLinus Torvalds2005-04-29
| | | | | | | | | | | | | | It's old sanity checking that may have been useful for debugging, but is just bogus these days. Noticed by Mattia Belletti.
* | [AUDIT] LOGIN message credentialsSteve Grubb2005-04-29
| | | | | | | | | | | | | | | | | | | | | | | | Attached is a new patch that solves the issue of getting valid credentials into the LOGIN message. The current code was assuming that the audit context had already been copied. This is not always the case for LOGIN messages. To solve the problem, the patch passes the task struct to the function that emits the message where it can get valid credentials. Signed-off-by: Steve Grubb <sgrubb@redhat.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [AUDIT] Requeue messages at head of queue, up to audit_backlogChris Wright2005-04-29
| | | | | | | | | | | | | | | | | | If netlink_unicast() fails, requeue the skb back at the head of the queue it just came from, instead of the tail. And do so unless we've exceeded the audit_backlog limit; not according to some other arbitrary limit. From: Chris Wright <chrisw@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | Add audit uid to netlink credentialsSerge Hallyn2005-04-29
| | | | | | | | | | | | | | | | | | | | Most audit control messages are sent over netlink.In order to properly log the identity of the sender of audit control messages, we would like to add the loginuid to the netlink_creds structure, as per the attached patch. Signed-off-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | audit: update pointer to userspace tools, remove emacs mode tags2005-04-29
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* | [AUDIT] Avoid using %*.*s format strings.Peter Martuccelli2005-04-29
| | | | | | | | | | | | | | | | They don't seem to work correctly (investigation ongoing), but we don't actually need to do it anyway. Patch from Peter Martuccelli <peterm@redhat.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [AUDIT] Fix signedness of 'serial' in various routines.Steve Grubb2005-04-29
| | | | | | | | | | | | | | | | | | | | Attached is a patch that corrects a signed/unsigned warning. I also noticed that we needlessly init serial to 0. That only needs to occur if the kernel was compiled without the audit system. -Steve Grubb Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [AUDIT] Don't allow ptrace to fool auditing, log arch of audited syscalls.2005-04-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We were calling ptrace_notify() after auditing the syscall and arguments, but the debugger could have _changed_ them before the syscall was actually invoked. Reorder the calls to fix that. While we're touching ever call to audit_syscall_entry(), we also make it take an extra argument: the architecture of the syscall which was made, because some architectures allow more than one type of syscall. Also add an explicit success/failure flag to audit_syscall_exit(), for the benefit of architectures which return that in a condition register rather than only returning a single register. Change type of syscall return value to 'long' not 'int'. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | audit_log_untrustedstring() warning fixAndrew Morton2005-04-29
| | | | | | | | | | | | | | | | kernel/audit.c: In function `audit_log_untrustedstring': kernel/audit.c:736: warning: comparison is always false due to limited range of data type Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | AUDIT: Avoid log pollution by untrusted strings.2005-04-29
|/ | | | | | | | | | We log strings from userspace, such as arguments to open(). These could be formatted to contain \n followed by fake audit log entries. Provide a function for logging such strings, which gives a hex dump when the string contains anything but basic printable ASCII characters. Use it for logging filenames. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [PATCH] time interpolator: Fix settimeofday inaccuracyChristoph Lameter2005-04-28
| | | | | | | | | | | | | | | | settimeofday will set the time a little bit too early on systems using time interpolation since it subtracts the current interpolator offset from the time. This used to be necessary with the code in 2.6.9 and earlier but the new code resets the time interpolator after setting the time. Thus the time is set too early and gettimeofday will return a time slightly before the time specified with settimeofday if invoked immeditely after settimeofday. This removes the obsolete subtraction of the time interpolator offset and makes settimeofday set the time accurately. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [SPARC]: Stop-A printk cleanupTom 'spot' Callaway2005-04-24
| | | | | | | | | | | | This patch is incredibly trivial, but it does resolve some of the user confusion as to what "L1-A" actually is. Clarify printk message to refer to Stop-A (L1-A). Gentoo has a virtually identical patch in their kernel sources. Signed-off-by: Tom 'spot' Callaway <tcallawa@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] sched: fix signed comparisons of long longIngo Molnar2005-04-18
| | | | | | | Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] SELinux: fix deadlock on dcache lockStephen Smalley2005-04-18
| | | | | | | | | | | | | | | | | | | | This fixes a deadlock on the dcache lock detected during testing at IBM by moving the logging of the current executable information from the SELinux avc_audit function to audit_log_exit (via an audit_log_task_info helper) for processing upon syscall exit. For consistency, the patch also removes the logging of other task-related information from avc_audit, deferring handling to audit_log_exit instead. This allows simplification of the avc_audit code, allows the exe information to be obtained more reliably, always includes the comm information (useful for scripts), and avoids including bogus task information for checks performed from irq or softirq. Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: James Morris <jmorris@redhat.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reparent_to_init cleanupCoywolf Qi Hunt2005-04-16
| | | | | | | | | This patch hides reparent_to_init(). reparent_to_init() should only be called by daemonize(). Signed-off-by: Coywolf Qi Hunt <coywolf@lovecn.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cpuset: remove function attribute constBenoit Boissinot2005-04-16
| | | | | | | | | | | | | | | | | | | | | | | | gcc-4 warns with include/linux/cpuset.h:21: warning: type qualifiers ignored on function return type cpuset_cpus_allowed is declared with const extern const cpumask_t cpuset_cpus_allowed(const struct task_struct *p); First const should be __attribute__((const)), but the gcc manual explains that: "Note that a function that has pointer arguments and examines the data pointed to must not be declared const. Likewise, a function that calls a non-const function usually must not be const. It does not make sense for a const function to return void." The following patch remove const from the function declaration. Signed-off-by: Benoit Boissinot <benoit.boissinot@ens-lyon.org> Acked-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] pci enumeration on ixp2000: overflow in kernel/resource.cLennert Buytenhek2005-04-16
| | | | | | | | | | | | | | IXP2000 (ARM-based) platforms use a separate 'struct resource' for PCI MEM space. Resource allocation for PCI BARs always fails because the 'root' resource (the IXP2000 PCI MEM resource) always has the entire address space (00000000-ffffffff) free, and find_resource() calculates the size of that range as ffffffff-00000000+1=0, so all allocations fail because it thinks there is no space. (akpm: pls. double-check) Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>