- 27 Jun, 2004 40 commits
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David Howells authored
There appears to be a missing semicolon in the VIODASD driver in 2.6.7. Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Martin J. Bligh authored
From: Andy Whitcroft <apw@shadowen.org> This patch eliminates the false hole which can form between ZONE_NORMAL and ZONE_HIGHMEM. This is most easily seen when 4g/4g split is enabled, but it's always broken, and we just happen not to hit it most of the time. Basically, the patch changes the allocation of the numa remaps regions (the source of the holes) such that they officially fall within VMALLOC space, where they belong. Tested in -mjb for a couple of months, and again against 2.6.7-mm1. Signed-off-by:
Andy Whitcroft <apw@shadowen.org> Signed-off-by:
Martin J. Bligh <mbligh@aracnet.com> Signed-off-by:
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Kenneth W. Chen authored
Hit a kernel oops on 2.6.7 kernel when doing direct I/O to hugetlb page. The destructor of compound page was moved into page->mapping since 2.6.6. It got interfered with set_page_dirty() for hugetlb page: an O_DIRECT read into first tail page of the compound page will fool set_page_dirty() to deference page->mapping->a_ops and then kernel oops. Patch to fix the oops. We do just like what bio_set_pages_dirty() does. Signed-off-by:
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Andrey Panin authored
This patch makes AX.25 drivers use common crc16 code. Signed-off-by:
Andrey Panin <pazke@donpac.ru> Signed-off-by:
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Andrey Panin authored
This patch makes various ISDN drivers use common crc16 code. Signed-off-by:
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Andrey Panin authored
This patch makes IRDA subsystem use common crc16 code. Signed-off-by:
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Andrey Panin authored
This patch makes async PPP driver use common crc16 code. Signed-off-by:
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Andrey Panin authored
Currently we have 8 copies of CRC16 calculation table in different device drivers, this patch creates common crc16.c module to replace them. Signed-off-by:
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Arjan van de Ven authored
Right now the kernel detects the sysadmin trying to set the iocharset of vfat to UTF8 and prevents this with an error. While I can see that this is not recommended, enforcing this is policy that probably doesn't belong in the kernel. The patch below makes this situation a warning and a recommendation instead of a strong blockage. https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=126641 is an example of a sysadmin disliking this policy enforcement. Signed-off-by:
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Jesper Juhl authored
Here's a patch to line up the "CPU: After * identify, caps:" messages produced by printk's in arch/i386/kernel/cpu/common.c Signed-off-by:
Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by:
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Stephen D. Smalley authored
SELinux should just drop out the socket and netfilter hooks when that is disabled. The problem was introduced because of the fine-grained netlink patches, which made the selinux_netlink_send/recv hook functions depend on CONFIG_SECURITY_NETWORK but the netlink_send/recv hooks themselves are not dependent on it. Need to move selinux_netlink_send/recv back out of the conditional block, and provide a static inline stub for selinux_nlmsg_perm if CONFIG_SECURITY_NETWORK is not defined. Signed-off-by:
Stephen Smalley <sds@epoch.ncsc.mil> Signed-off-by:
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Andrew Morton authored
Using current gcc CVS I hit a piece of code in which the compiler was emitting a memmove() call. The kernel link failed. Uninline it. Also, move the memcpy and memset exports into memcpy.c. Signed-off-by:
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Neil Brown authored
Allow the lease to be set from /proc/fs/nfs/nfsv4leasetime. To comply with rfc3530, this appears as a server reboot from the point of view of the client, which must reclaim state with the grace period. From: Andy Adamson <andros@citi.umich.edu> Signed-off-by:
J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by:
Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by:
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Neil Brown authored
Currently nfs4_arg->to_free keeps a list of void ptrs on which kfree is called when freeing the nfs4_arg. This allows us to do cleanup on e.g. xdr decode failures. To allow more complicated objects to be freed (in particular, acls), we add a "void (*release)(void *)" to allow us to request something other than kfree be called when freeing. Signed-off-by:
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Neil Brown authored
Preparation for delegations: parse callback information provided in setclientid request. From: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by:
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Neil Brown authored
Insist that the first time a client presents a new lockowner, the seqid should be 0. (RFC 3530 section 8.1.5) Also, return an error if the client presents a previously-used lockowner as if it were new. From: Andy Adamson <andros@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by:
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Neil Brown authored
nfsd4_proc_compound is using over a thousand bytes of stack. This is partly because it declares two local svc_fh's, partly because of a big switch statement which calls a bunch of functions which may be inlined. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by:
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Neil Brown authored
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by:
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Neil Brown authored
Simplify nfsd4_release_lockowner a bit, factor out code that we need for another patch. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by:
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Neil Brown authored
Use opaque xdr encoding routines from xdr.c instead of rolling our own. Signed-off-by:
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Neil Brown authored
From: Greg Banks <gnb@sgi.com> NFS/TCP has been used widely for a long time now, and is now enabled by many distros and typically recommended for lossy or congested networks. This patch removes the EXPERIMENTAL tag, updates the help text, and changes arch defconfigs to set it by default (note that several already did so). Signed-off-by:
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Kenneth W. Chen authored
It adds per node huge page stats in sysfs. Signed-off-by:
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Robert Picco authored
I eliminated the request_irq brain damage, chopped off procfs support (didn't care for it too much in the first place and it was adopted from rtc.c), made the check for FMODE_WRITE in hpet_open and responded to a few other suggestions. Signed-off-by:
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Andrey Panin authored
This patch ports APM BIOS driver to new DMI probing API. Signed-off-by:
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Andrey Panin authored
BROKEN_ACPI_Sx flag doesn't seem to be used anywhere in the kernel, so ASUS K7V-RM can be removed. Signed-off-by:
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Andrey Panin authored
This patch ports powernow-k7 driver to new DMI probing API. Signed-off-by:
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Andrey Panin authored
This patch ports sonypi driver to new DMI probing API and removes is_unsafe_smbus global variable. Signed-off-by:
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Andrey Panin authored
This patch ports sonypi driver to new DMI probing API and removes is_sony_vaio_laptop global variable. Signed-off-by:
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Andrey Panin authored
This patch ports PnP BIOS driver to new DMI probing API. Signed-off-by:
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Andrey Panin authored
This patch moves PCI IRQ routing workaround for Acer TravelMate 360 laptop to arch/i386/pci/irq.c and makes acer_tm360_irqrouting variable static. It also fixes VisWs build error caused by this workaround code. Signed-off-by:
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Rusty Russell authored
store_stackinfo() does an unlocked module list walk during normal runtime which opens up a race with the module load/unload code. This can be triggered by simply unloading and loading a module in a loop with CONFIG_DEBUG_PAGEALLOC resulting in store_stackinfo() tripping over bad list pointers. kernel_text_address doesn't take any locks, because during an OOPS we don't want to deadlock. Rename that to __kernel_text_address, and make kernel_text_address take the lock. Signed-off-by:
Zwane Mwaikambo <zwane@fsmlabs.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (modified) Signed-off-by:
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Martin J. Bligh authored
I find __free_pages_bulk very hard to understand ... (I was trying to mod it for the non MAX_ORDER aligned zones, and cleaned it up first). This should make it much more comprehensible to mortal man ... I benchmarked the changes on the big 16x and it's no slower (actually it's about 0.5% faster, but that's within experimental error). I moved the creation of mask into __free_pages_bulk from the caller - it seems to really belong inside there. Then instead of doing wierd limbo dances with mask, I made it use order instead where it's more intuitive. Personally I find this makes the whole thing a damned sight easier to understand. Signed-off-by:
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Coywolf Qi Hunt authored
I just find a bug that ``make distclean'' cannot remove the editor backup files and the like when using build directory. That is because the find command is improperly searching the build directory instead of the $(srctree) it should. Signed-off-by:
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Keith Owens authored
Verify that linking kallsyms into vmlinux generates a stable System.map, instead of assuming that it is stable. Add CONFIG_KALLSYMS_EXTRA_PASS as a temporary workaround for unstable maps, so users can proceed while waiting for kallsyms to be fixed. Signed-off-by:
Keith Owens <kaos@sgi.com> Signed-off-by:
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Keith Owens authored
Exclude symbols added by kallsyms itself, so .tmp_kallsyms[12].S have the same list of symbols. Signed-off-by:
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Zwane Mwaikambo authored
This is a small cleanup requested by Urban, use the rcls/err in smb_request as opposed to smb_sb_info. Signed-off-by:
Zwane Mwaikambo <zwane@linuxpower.ca> Signed-off-by:
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Andrew Morton authored
This BUG_ON() triggers for `count = -EFOO' due to PAGE_SIZE being unsigned. Signed-off-by:
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Ingo Molnar authored
we'd like to announce the availability of the following kernel patch: http://redhat.com/~mingo/nx-patches/nx-2.6.7-rc2-bk2-AE which makes use of the 'NX' x86 feature pioneered in AMD64 CPUs and for which support has also been announced by Intel. (other x86 CPU vendors, Transmeta and VIA announced support as well. Windows support for NX has also been announced by Microsoft, for their next service pack.) The NX feature is also being marketed as 'Enhanced Virus Protection'. This patch makes sure Linux has full support for this hardware feature on x86 too. What does this patch do? The pagetable format of current x86 CPUs does not have an 'execute' bit. This means that even if an application maps a memory area without PROT_EXEC, the CPU will still allow code to be executed in this memory. This property is often abused by exploits when they manage to inject hostile code into this memory, for example via a buffer overflow. The NX feature changes this and adds a 'dont execute' bit to the PAE pagetable format. But since the flag defaults to zero (for compatibility reasons), all pages are executable by default and the kernel has to be taught to make use of this bit. If the NX feature is supported by the CPU then the patched kernel turns on NX and it will enforce userspace executability constraints such as a no-exec stack and no-exec mmap and data areas. This means less chance for stack overflows and buffer-overflows to cause exploits. furthermore, the patch also implements 'NX protection' for kernelspace code: only the kernel code and modules are executable - so even kernel-space overflows are harder (in some cases, impossible) to exploit. Here is how kernel code that tries to execute off the stack is stopped: kernel tried to access NX-protected page - exploit attempt? (uid: 500) Unable to handle kernel paging request at virtual address f78d0f40 printing eip: ... The patch is based on a prototype NX patch written for 2.4 by Intel - special thanks go to Suresh Siddha and Jun Nakajima @ Intel. The existing NX support in the 64-bit x86_64 kernels has been written by Andi Kleen and this patch is modeled after his code. Arjan van de Ven has also provided lots of feedback and he has integrated the patch into the Fedora Core 2 kernel. Test rpms are available for download at: http://redhat.com/~arjanv/2.6/RPMS.kernel/ the kernel-2.6.6-1.411 rpms have the NX patch applied. here's a quickstart to recompile the vanilla kernel from source with the NX patch: http://redhat.com/~mingo/nx-patches/QuickStart-NX.txt update: - make the heap non-executable on PT_GNU_STACK binaries. - make all data mmap()s (and the heap) executable on !PT_GNU_STACK (legacy) binaries. This has no effect on non-NX CPUs, but should be much more compatible on NX CPUs. The only effect it has it has on non-NX CPUs is the extra 'x' bit displayed in /proc/PID/maps. Signed-off-by: -
Stas Sergeev authored
The previous discussion was started here: http://www.uwsg.iu.edu/hypermail/linux/kernel/0211.0/0477.html but in 2.4 times this was kind of problematic. Now, with the lazy bitmap allocation and per-CPU TSS, this will really not drain any resources I think. 8K TSS increase and 8K per process *that does ioperm()* - I think it is not very bad. The reasons why I need that, are described in the URL above. Basically this will allow to use full-screen VESA under dosemu (without LFB though), and this may be also helpfull for the XFree project and some other projects: http://www.uwsg.iu.edu/hypermail/linux/kernel/9807.1/1079.htmlSigned-off-by:
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Anton Blanchard authored
__alloc_bootmem_node currently panics if it cant satisfy an allocation for a particular node. Thats rather antisocial, we should at the very least return NULL and allow the caller to proceed (eg try another node). A quick look at alloc_bootmem_node usage suggests we should fall back to allocating from other nodes if it fails (as arch/alpha/kernel/pci_iommu.c and arch/x86_64/kernel/setup64.c do). The following patch does that. We fall back to the regular __alloc_bootmem when __alloc_bootmem_node fails, which means all other nodes are checked for available memory. Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
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