- 12 Apr, 2004 40 commits
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Andrew Morton authored
From: <gerg@snapgear.com> Add type field to printk calls. Patch original provided by kernel janitors.
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Andrew Morton authored
From: <gerg@snapgear.com> Add build support for the senTec vendor to m68knommu architecture Makefile.
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Andrew Morton authored
From: <gerg@snapgear.com> Fix architecture/cpu defines to support those used by modern versions of gcc (that is gcc > 3.3.x) for m68knommu. The standard for defining ColdFire architectures is no longer __mcf5200__, it is now __mcoldfire__. This patch fixes all the occurances in the m68knommu/lib functions.
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Andrew Morton authored
From: <gerg@snapgear.com> A couple of additions to the linker script for m68knommu platforms: . add support for COBRA5272 and COBRA5282 boards . link in .rodata.str1 generated by gcc-3.3.x compilers
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Andrew Morton authored
From: <gerg@snapgear.com> Add type to all printk calls in m68knommu traps.c. Also added a modern dump_stack function.
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Andrew Morton authored
From: <gerg@snapgear.com> Cleanup m68knommu/kernel/setup.c. Add type to all printk calls, remove obsolete framebuffer setup and fix a few irqreturn_t for interrupt handlers in prototypes. Printk cleanup originally from kernel janitors.
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Andrew Morton authored
From: <gerg@snapgear.com> Add local m68knommu dma allocation code to build list.
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Andrew Morton authored
From: <gerg@snapgear.com> Create the coherent DMA allocation functions for m68knommu. No current hardware in this class requires anything special, so it just just does normal allocations after sanity checks.
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Andrew Morton authored
From: <gerg@snapgear.com> Cleanup m68knommu's comempci.c support code. Add type to all printk calls. Patch originally from kernel janitors.
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Andrew Morton authored
From: <gerg@snapgear.com> A few changes to the m68knommu Kconfig: . Add support for 64MHz clocked CPU's . Add support for selecting the COBRA5272 and COBRA5282 boards . Use drivers/Kconfig for driver configuration . Allow configuring compilation with frame-pointer
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Andrew Morton authored
From: <gerg@snapgear.com> Some kernel janitor clean ups of printk for the m68knommu specific process code. And more importantly a fix to the kernel_thread() asm code to correctly return the pid back to the return var from the clone system call.
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Andrew Morton authored
From: <gerg@snapgear.com> Create a dma-mapping.h for m68knommu architecture.
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Andrew Morton authored
From: <miles@mcspd15.ucom.lsi.nec.co.jp> (Miles Bader) Is this something that should be done in <asm-generic/dma-mapping.h>?
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Andrew Morton authored
From: <miles@mcspd15.ucom.lsi.nec.co.jp> (Miles Bader) Otherwise the compiler can delete them (this is one of those "how on earth did it ever work before" moments).
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Andrew Morton authored
From: Roland McGrath <roland@redhat.com> The posix-timers implementation associates timers with the creating thread and destroys timers when their creator thread dies. POSIX clearly specifies that these timers are per-process, and a timer should not be torn down when the thread that created it exits. I hope there won't be any controversy on what the correct semantics are here, since POSIX is clear and the Linux feature is called "posix-timers". The attached program built with NPTL -lrt -lpthread demonstrates the bug. The program is correct by POSIX, but fails on Linux. Note that a until just the other day, NPTL had a trivial bug that always disabled its use of kernel timer syscalls (check strace for lack of timer_create/SYS_259). So unless you have built your own NPTL libs very recently, you probably won't see the kernel calls actually used by this program. Also attached is my patch to fix this. It (you guessed it) moves the posix_timers field from task_struct to signal_struct. Access is now governed by the siglock instead of the task lock. exit_itimers is called from __exit_signal, i.e. only on the death of the last thread in the group, rather than from do_exit for every thread. Timers' it_process fields store the group leader's pointer, which won't die. For the case of SIGEV_THREAD_ID, I hold a ref on the task_struct for it_process to stay robust in case the target thread dies; the ref is released and the dangling pointer cleared when the timer fires and the target thread is dead. (This should only come up in a buggy user program, so noone cares exactly how the kernel handles that case. But I think what I did is robust and sensical.) /* Test for bogus per-thread deletion of timers. */ #include <stdio.h> #include <error.h> #include <time.h> #include <signal.h> #include <stdint.h> #include <sys/time.h> #include <sys/resource.h> #include <unistd.h> #include <pthread.h> /* Creating timers in another thread should work too. */ static void *do_timer_create(void *arg) { struct sigevent *const sigev = arg; timer_t *const timerId = sigev->sigev_value.sival_ptr; if (timer_create(CLOCK_REALTIME, sigev, timerId) < 0) { perror("timer_create"); return NULL; } return timerId; } int main(void) { int i, res; timer_t timerId; struct itimerspec itval; struct sigevent sigev; itval.it_interval.tv_sec = 2; itval.it_interval.tv_nsec = 0; itval.it_value.tv_sec = 2; itval.it_value.tv_nsec = 0; sigev.sigev_notify = SIGEV_SIGNAL; sigev.sigev_signo = SIGALRM; sigev.sigev_value.sival_ptr = (void *)&timerId; for (i = 0; i < 100; i++) { printf("cnt = %d\n", i); pthread_t thr; res = pthread_create(&thr, NULL, &do_timer_create, &sigev); if (res) { error(0, res, "pthread_create"); continue; } void *val; res = pthread_join(thr, &val); if (res) { error(0, res, "pthread_join"); continue; } if (val == NULL) continue; res = timer_settime(timerId, 0, &itval, NULL); if (res < 0) perror("timer_settime"); res = timer_delete(timerId); if (res < 0) perror("timer_delete"); } return 0; }
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Andrew Morton authored
From: Yoshinori Sato <ysato@users.sourceforge.jp> - add Kconfig depends H8300 - H8/300 support compile error fixed.
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Andrew Morton authored
From: Yoshinori Sato <ysato@users.sourceforge.jp> - fix any error/warning - fix {request,freee}_irq interrupt control fix - add dump_stack - fix show_trace_task - fix typo
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Andrew Morton authored
From: Yoshinori Sato <ysato@users.sourceforge.jp> - use new serial driver (drivers/serial/sh-sci.[ch]) - typo fix - add message level
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Andrew Morton authored
From: Yoshinori Sato <ysato@users.sourceforge.jp> - cleanup define
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Andrew Morton authored
From: Yoshinori Sato <ysato@users.sourceforge.jp> - fix PTRACE_SIGLESTEP bug. - separate to CPU depend.
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Andrew Morton authored
From: "Randy.Dunlap" <rddunlap@osdl.org> Use x86 EFLAGS defines in place of hardwired constants.
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Andrew Morton authored
From: Arjan van de Ven <arjanv@redhat.com> isdn: dynamically allocate big structures
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Andrew Morton authored
From: Arjan van de Ven <arjanv@redhat.com> ide.c: constant array of strings can be static
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Andrew Morton authored
From: Arjan van de Ven <arjanv@redhat.com> ide-cd: a few 512 byte scratch buffers can be static; they are just for putting "padding" sectors in that aren't used. (acked by Jens)
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Andrew Morton authored
From: Julie DeWandel <jdewand@redhat.com> A problem exists where a 32-bit application can have a huge bss, one that is so large that an overflow of the TASK_SIZE happens. But in this case, the overflow is not detected in load_elf_binary(). Instead, because arithmetic is being done using 32-bit containers, a truncation occurs and the program gets loaded when it shouldn't have been. Subsequent execution yields unpredictable results. The attached patch fixes this problem by checking for the overflow condition and sending a SIGKILL to the application if the overflow is detected. This problem can in theory exist when loading the elf interpreter as well, so a similar check was added there.
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Andrew Morton authored
From: Fabian Frederick <Fabian.Frederick@skynet.be> Here's a trivial patch to avoid definition redundancy in es1688.
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Andrew Morton authored
- Don't leak a pathname ref on error - Don't do putname() on a nameidata.
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Andrew Morton authored
From: Brian Gerst <bgerst@didntduck.org> - Move empty_zero_page and swapper_pg_dir to BSS. This requires that BSS is cleared earlier, but reclaims over 3k that was lost due to page alignment. - Move stack_start, ready, and int_msg, boot_gdt_descr, idt_descr, and cpu_gdt_descr to .data. They were interfering with disassembly while in .text.
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Andrew Morton authored
unmap_vmas() will cause scheduling latency when tearing down really big vmas on !CONFIG_PREEMPT. That's a bit unkind to the non-preempt case, so let's do a cond_resched() after zapping 1024 pages.
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Andrew Morton authored
From: Bernhard Rosenkraenzer <bero@arklinux.org> mixart.h uses tasklet_struct without including linux/interrupt.h -- fix attached.
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Andrew Morton authored
From: Stephen Smalley <sds@epoch.ncsc.mil> This patch drops the ratelimit code from the SELinux avc, as this can now be handled by the audit framework. Enabling and setting the ratelimit is then left to userspace.
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Andrew Morton authored
From: Stephen Smalley <sds@epoch.ncsc.mil> This patch changes an error message printk'd by security_compute_sid to use the audit framework instead. These errors reflect situations where a security transition would normally occur due to policy, but the resulting security context is not valid. The patch also changes the code to always call the audit framework rather than only doing so when permissive as this was causing problems with testing policy, and does some code cleanup.
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Andrew Morton authored
From: James Morris <jmorris@redhat.com> This patch makes the IPv6 code work with the audit framework, following the merge of both.
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Andrew Morton authored
From: Rik Faith <faith@redhat.com> This patch provides a low-overhead system-call auditing framework for Linux that is usable by LSM components (e.g., SELinux). This is an update of the patch discussed in this thread: http://marc.theaimsgroup.com/?t=107815888100001&r=1&w=2 In brief, it provides for netlink-based logging of audit records that have been generated in other parts of the kernel (e.g., SELinux) as well as the ability to audit system calls, either independently (using simple filtering) or as a compliment to the audit record that another part of the kernel generated. The main goals were to provide system call auditing with 1) as low overhead as possible, and 2) without duplicating functionality that is already provided by SELinux (and/or other security infrastructures). This framework will work "stand-alone", but is not designed to provide, e.g., CAPP functionality without another security component in place. This updated patch includes changes from feedback I have received, including the ability to compile without CONFIG_NET (and better use of tabs, so use -w if you diff against the older patch). Please see http://people.redhat.com/faith/audit/ for an early example user-space client (auditd-0.4.tar.gz) and instructions on how to try it. My future intentions at the kernel level include improving filtering (e.g., syscall personality/exit codes) and syscall support for more architectures. First, though, I'm going to work on documentation, a (real) audit daemon, and patches for other user-space tools so that people can play with the framework and understand how it can be used with and without SELinux. Update: Light-weight Auditing Framework receive filter fixes From: Rik Faith <faith@redhat.com> Since audit_receive_filter() is only called with audit_netlink_sem held, it cannot race with either audit_del_rule() or audit_add_rule(), so the list_for_each_entry_rcu()s may be replaced by list_for_each_entry()s, and the rcu_read_{un,}lock()s removed. A fix for this is part of the attached patch. Other features of the attached patch are: 1) generalized the ability to test for inequality 2) added syscall exit status reporting and testing 3) added ability to report and test first 4 syscall arguments (this adds a large amount of flexibility for little cost; not implemented or tested on ppc64) 4) added ability to report and test personality User-space demo program enhanced for new fields and inequality testing: http://people.redhat.com/faith/audit/auditd-0.5.tar.gz
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Andrew Morton authored
This patch removes a harmless duplicate assignment from the IPv6 code.
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Andrew Morton authored
From: James Morris <jmorris@redhat.com> The patch below adds explicit IPv6 support to SELinux. Brief description of changes: o IPv6 networking is now subject to the same controls as IPv4 (in addition to the generic socket permissions which cover all protocols), namely: bind to local node address; bind to local port; send & receive TCP/UDP and raw IP packets based on local network interface and remote node address. o Packet parsing has been extended to IPv6 packets for logging and control, and simplified for IPv4. o Support for logging of IPv6 addresses has also been added. o The kernel policy database code has been modified to support IPv6, and reworked to provide generic security policy version handling so that older policy versions will still work, making upgrading simpler. Corresponding userspace patches are available at <http://people.redhat.com/jmorris/selinux/ipv6/>, although current userspace tools will continue to function normally (but without explicit IPv6 support). For more details at the security management level, see <http://marc.theaimsgroup.com/?l=selinux&m=108068187630948&w=2> This code has been under testing and review for several weeks.
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Andrew Morton authored
From: Chris Mason <mason@suse.com> reiserfs-writepage-ordered-race needs a minor update to include your latest __block_write_full_page fixes for the direct_read_under bug Daniel was hitting.
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Andrew Morton authored
fs/reiserfs/journal.c: In function `reiserfs_end_persistent_transaction': fs/reiserfs/journal.c:2616: warning: unused variable `s' Make the functions static inline so that typechecking is enabled if !CONFIG_REISERFS_CHECK.
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Andrew Morton authored
From: Chris Mason <mason@suse.com> block_write_full_page() might see and lock clean metadata buffers, which leads to journal-1777 messages. Change the message to ignore bh locked.
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Andrew Morton authored
From: Chris Mason <mason@suse.com> Some latency improvements for the reiserfs data=ordered code from Takashi.
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