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* [PATCH] reduce MAX_NR_ZONES: remove display of counters for unconfigured zonesChristoph Lameter2006-09-26
| | | | | | | | | | | | | | | | eventcounters: Do not display counters for zones that are not available on an arch Do not define or display counters for the DMA32 and the HIGHMEM zone if such zones were not configured. [akpm@osdl.org: s390 fix] [heiko.carstens@de.ibm.com: s390 fix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reduce MAX_NR_ZONES: make ZONE_HIGHMEM optionalChristoph Lameter2006-09-26
| | | | | | | | | | | | | | | | | | Make ZONE_HIGHMEM optional - ifdef out code and definitions related to CONFIG_HIGHMEM - __GFP_HIGHMEM falls back to normal allocations if there is no ZONE_HIGHMEM - GFP_ZONEMASK becomes 0x01 if there is no DMA32 and no HIGHMEM zone. [jdike@addtoit.com: build fix] Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Christoph Lameter <clameter@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reduce MAX_NR_ZONES: make ZONE_DMA32 optionalChristoph Lameter2006-09-26
| | | | | | | | | | | | | | | | | | | Make ZONE_DMA32 optional - Add #ifdefs around ZONE_DMA32 specific code and definitions. - Add CONFIG_ZONE_DMA32 config option and use that for x86_64 that alone needs this zone. - Remove the use of CONFIG_DMA_IS_DMA32 and CONFIG_DMA_IS_NORMAL for ia64 and fix up the way per node ZVCs are calculated. - Fall back to prior GFP_ZONEMASK of 0x03 if there is no DMA32 zone. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reduce MAX_NR_ZONES: use enum to define zones, reformat and commentChristoph Lameter2006-09-26
| | | | | | | | | | | | | | Use enum for zones and reformat zones dependent information Add comments explaning the use of zones and add a zones_t type for zone numbers. Line up information that will be #ifdefd by the following patches. [akpm@osdl.org: comment cleanups] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reduce MAX_NR_ZONES: page allocator ZONE_HIGHMEM cleanupChristoph Lameter2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | page allocator ZONE_HIGHMEM fixups 1. We do not need to do an #ifdef in si_meminfo since both counters in use are zero if !CONFIG_HIGHMEM. 2. Add #ifdef in si_meminfo_node instead to avoid referencing zone information for ZONE_HIGHMEM if we do not have HIGHMEM (may not be there after the following patches). 3. Replace the use of ZONE_HIGHMEM with MAX_NR_ZONES in build_zonelists_node 4. build_zonelists_node: Remove BUG_ON for ZONE_HIGHMEM. Zone will be optional soon and thus BUG_ON cannot be triggered anymore. 5. init_free_area_core: Replace a use of ZONE_HIGHMEM with NR_MAX_ZONES. [akpm@osdl.org: cleanups] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reduce MAX_NR_ZONES: move HIGHMEM counters into highmem.c/.hChristoph Lameter2006-09-26
| | | | | | | | | | | | | Move totalhigh_pages and nr_free_highpages() into highmem.c/.h Move the totalhigh_pages definition into highmem.c/.h. Move the nr_free_highpages function into highmem.c [yoichi_yuasa@tripeaks.co.jp: build fix] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reduce MAX_NR_ZONES: make display of highmem counters conditional on ↵Christoph Lameter2006-09-26
| | | | | | | | | | | | | | | | | | CONFIG_HIGHMEM Do not display HIGHMEM memory sizes if CONFIG_HIGHMEM is not set. Make HIGHMEM dependent texts and make display of highmem counters optional Some texts are depending on CONFIG_HIGHMEM. Remove those strings and remove the display of highmem counter values if CONFIG_HIGHMEM is not set. [akpm@osdl.org: remove some ifdefs] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reduce MAX_NR_ZONES: fix MAX_NR_ZONES array initializationsChristoph Lameter2006-09-26
| | | | | | | | | | | | Fix array initialization in lots of arches The number of zones may now be reduced from 4 to 2 for many arches. Fix the array initialization for the zones array for all architectures so that it is not initializing a fixed number of elements. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reduce MAX_NR_ZONES: remove two strange uses of MAX_NR_ZONESChristoph Lameter2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I keep seeing zones on various platforms that are never used and wonder why we compile support for them into the kernel. Counters show up for HIGHMEM and DMA32 that are alway zero. This patch allows the removal of ZONE_DMA32 for non x86_64 architectures and it will get rid of ZONE_HIGHMEM for arches not using highmem (like 64 bit architectures). If an arch does not define CONFIG_HIGHMEM then ZONE_HIGHMEM will not be defined. Similarly if an arch does not define CONFIG_ZONE_DMA32 then ZONE_DMA32 will not be defined. No current architecture uses all the 4 zones (DMA,DMA32,NORMAL,HIGH) that we have now. The patchset will reduce the number of zones for all platforms. On many platforms that do not have DMA32 or HIGHMEM this will reduce the number of zones by 50%. F.e. ia64 only uses DMA and NORMAL. Large amounts of memory can be saved for larger systemss that may have a few hundred NUMA nodes. With ZONE_DMA32 and ZONE_HIGHMEM support optional MAX_NR_ZONES will be 2 for many non i386 platforms and even for i386 without CONFIG_HIGHMEM set. Tested on ia64, x86_64 and on i386 with and without highmem. The patchset consists of 11 patches that are following this message. One could go even further than this patchset and also make ZONE_DMA optional because some platforms do not need a separate DMA zone and can do DMA to all of memory. This could reduce MAX_NR_ZONES to 1. Such a patchset will hopefully follow soon. This patch: Fix strange uses of MAX_NR_ZONES Sometimes we use MAX_NR_ZONES - x to refer to a zone. Make that explicit. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] bootmem: miscellaneous coding style fixesFranck Bui-Huu2006-09-26
| | | | | | | | | | It fixes various coding style issues, specially when spaces are useless. For example '*' go next to the function name. Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] bootmem: use pfn/page conversion macrosFranck Bui-Huu2006-09-26
| | | | | | | | | | It also creates get_mapsize() helper in order to make the code more readable when it calculates the boot bitmap size. Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] bootmem: remove useless headers inclusionsFranck Bui-Huu2006-09-26
| | | | | | | Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] bootmem: limit to 80 columns widthFranck Bui-Huu2006-09-26
| | | | | | | Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] bootmem: remove useless parentheses in bootmem header fileFranck Bui-Huu2006-09-26
| | | | | | | Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] bootmem: mark link_bootmem() as part of the __init sectionFranck Bui-Huu2006-09-26
| | | | | | | Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] bootmem: remove useless __init in header fileFranck Bui-Huu2006-09-26
| | | | | | | | | | | | __init in headers is pretty useless because the compiler doesn't check it, and they get out of sync relatively frequently. So if you see an __init in a header file, it's quite unreliable and you need to check the definition anyway. Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Cc: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] convert i386 NUMA KVA space to bootmemkeith mannthey2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | Address a long standing issue of booting with an initrd on an i386 numa system. Currently (and always) the numa kva area is mapped into low memory by finding the end of low memory and moving that mark down (thus creating space for the kva). The issue with this is that Grub loads initrds into this similar space so when the kernel check the initrd it finds it outside max_low_pfn and disables it (it thinks the initrd is not mapped into usable memory) thus initrd enabled kernels can't boot i386 numa :( My solution to the problem just converts the numa kva area to use the bootmem allocator to save it's area (instead of moving the end of low memory). Using bootmem allows the kva area to be mapped into more diverse addresses (not just the end of low memory) and enables the kva area to be mapped below the initrd if present. I have tested this patch on numaq(no initrd) and summit(initrd) i386 numa based systems. [akpm@osdl.org: cleanups] Signed-off-by: Keith Mannthey <kmannth@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm/: make functions staticAdrian Bunk2006-09-26
| | | | | | | | | | | This patch makes the following needlessly global functions static: - slab.c: kmem_find_general_cachep() - swap.c: __page_cache_release() - vmalloc.c: __vmalloc_node() Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: msync() cleanupPeter Zijlstra2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | With the tracking of dirty pages properly done now, msync doesn't need to scan the PTEs anymore to determine the dirty status. From: Hugh Dickins <hugh@veritas.com> In looking to do that, I made some other tidyups: can remove several #includes, and sys_msync loop termination not quite right. Most of those points are criticisms of the existing sys_msync, not of your patch. In particular, the loop termination errors were introduced in 2.6.17: I did notice this shortly before it came out, but decided I was more likely to get it wrong myself, and make matters worse if I tried to rush a last-minute fix in. And it's not terribly likely to go wrong, nor disastrous if it does go wrong (may miss reporting an unmapped area; may also fsync file of a following vma). Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: fixup do_wp_page()Peter Zijlstra2006-09-26
| | | | | | | | | | | | | | | | Wrt. the recent modifications in do_wp_page() Hugh Dickins pointed out: "I now realize it's right to the first order (normal case) and to the second order (ptrace poke), but not to the third order (ptrace poke anon page here to be COWed - perhaps can't occur without intervening mprotects)." This patch restores the old COW behaviour for anonymous pages. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: small cleanup of install_page()Peter Zijlstra2006-09-26
| | | | | | | | | | Smallish cleanup to install_page(), could save a memory read (haven't checked the asm output) and sure looks nicer. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: optimize the new mprotect() code a bitPeter Zijlstra2006-09-26
| | | | | | | | | | | mprotect() resets the page protections, which could result in extra write faults for those pages whose dirty state we track using write faults and are dirty already. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: balance dirty pagesPeter Zijlstra2006-09-26
| | | | | | | | | | Now that we can detect writers of shared mappings, throttle them. Avoids OOM by surprise. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: tracking shared dirty pagesPeter Zijlstra2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Tracking of dirty pages in shared writeable mmap()s. The idea is simple: write protect clean shared writeable pages, catch the write-fault, make writeable and set dirty. On page write-back clean all the PTE dirty bits and write protect them once again. The implementation is a tad harder, mainly because the default backing_dev_info capabilities were too loosely maintained. Hence it is not enough to test the backing_dev_info for cap_account_dirty. The current heuristic is as follows, a VMA is eligible when: - its shared writeable (vm_flags & (VM_WRITE|VM_SHARED)) == (VM_WRITE|VM_SHARED) - it is not a 'special' mapping (vm_flags & (VM_PFNMAP|VM_INSERTPAGE)) == 0 - the backing_dev_info is cap_account_dirty mapping_cap_account_dirty(vma->vm_file->f_mapping) - f_op->mmap() didn't change the default page protection Page from remap_pfn_range() are explicitly excluded because their COW semantics are already horrid enough (see vm_normal_page() in do_wp_page()) and because they don't have a backing store anyway. mprotect() is taught about the new behaviour as well. However it overrides the last condition. Cleaning the pages on write-back is done with page_mkclean() a new rmap call. It can be called on any page, but is currently only implemented for mapped pages, if the page is found the be of a VMA that accounts dirty pages it will also wrprotect the PTE. Finally, in fs/buffers.c:try_to_free_buffers(); remove clear_page_dirty() from under ->private_lock. This seems to be safe, since ->private_lock is used to serialize access to the buffers, not the page itself. This is needed because clear_page_dirty() will call into page_mkclean() and would thereby violate locking order. [dhowells@redhat.com: Provide a page_mkclean() implementation for NOMMU] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: VM_BUG_ONNick Piggin2006-09-26
| | | | | | | | | | | | | | | | | Introduce a VM_BUG_ON, which is turned on with CONFIG_DEBUG_VM. Use this in the lightweight, inline refcounting functions; PageLRU and PageActive checks in vmscan, because they're pretty well confined to vmscan. And in page allocate/free fastpaths which can be the hottest parts of the kernel for kbuilds. Unlike BUG_ON, VM_BUG_ON must not be used to execute statements with side-effects, and should not be used outside core mm code. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Cc: Christoph Lameter <clameter@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] update to the kernel kmap/kunmap APIJames Bottomley2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | Give non-highmem architectures access to the kmap API for the purposes of overriding (this is what the attached patch does). The proposal is that we should now require all architectures with coherence issues to manage data coherence via the kmap/kunmap API. Thus driver writers never have to write code like kmap(page) modify data in page flush_kernel_dcache_page(page) kunmap(page) instead, kmap/kunmap will manage the coherence and driver (and filesystem) writers don't need to worry about how to flush between kmap and kunmap. For most architectures, the page only needs to be flushed if it was actually written to *and* there are user mappings of it, so the best implementation looks to be: clear the page dirty pte bit in the kernel page tables on kmap and on kunmap, check page->mappings for user maps, and then the dirty bit, and only flush if it both has user mappings and is dirty. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] jbd: fix commit of ordered data buffersJan Kara2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | Original commit code assumes, that when a buffer on BJ_SyncData list is locked, it is being written to disk. But this is not true and hence it can lead to a potential data loss on crash. Also the code didn't count with the fact that journal_dirty_data() can steal buffers from committing transaction and hence could write buffers that no longer belong to the committing transaction. Finally it could possibly happen that we tried writing out one buffer several times. The patch below tries to solve these problems by a complete rewrite of the data commit code. We go through buffers on t_sync_datalist, lock buffers needing write out and store them in an array. Buffers are also immediately refiled to BJ_Locked list or unfiled (if the write out is completed). When the array is full or we have to block on buffer lock, we submit all accumulated buffers for IO. [suitable for 2.6.18.x around the 2.6.19-rc2 timeframe] Signed-off-by: Jan Kara <jack@suse.cz> Cc: Badari Pulavarty <pbadari@us.ibm.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] trigger a syntax error if percpu macros are incorrectly usedJan Blunck2006-09-26
| | | | | | | | | | | | get_cpu_var()/per_cpu()/__get_cpu_var() arguments must be simple identifiers. Otherwise the arch dependent implementations might break. This patch enforces the correct usage of the macros by producing a syntax error if the variable is not a simple identifier. Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix longstanding load balancing bug in the schedulerChristoph Lameter2006-09-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The scheduler will stop load balancing if the most busy processor contains processes pinned via processor affinity. The scheduler currently only does one search for busiest cpu. If it cannot pull any tasks away from the busiest cpu because they were pinned then the scheduler goes into a corner and sulks leaving the idle processors idle. F.e. If you have processor 0 busy running four tasks pinned via taskset, there are none on processor 1 and one just started two processes on processor 2 then the scheduler will not move one of the two processes away from processor 2. This patch fixes that issue by forcing the scheduler to come out of its corner and retrying the load balancing by considering other processors for load balancing. This patch was originally developed by John Hawkes and discussed at http://marc.theaimsgroup.com/?l=linux-kernel&m=113901368523205&w=2. I have removed extraneous material and gone back to equipping struct rq with the cpu the queue is associated with since this makes the patch much easier and it is likely that others in the future will have the same difficulty of figuring out which processor owns which runqueue. The overhead added through these patches is a single word on the stack if the kernel is configured to support 32 cpus or less (32 bit). For 32 bit environments the maximum number of cpus that can be configued is 255 which would result in the use of 32 bytes additional on the stack. On IA64 up to 1k cpus can be configured which will result in the use of 128 additional bytes on the stack. The maximum additional cache footprint is one cacheline. Typically memory use will be much less than a cacheline and the additional cpumask will be placed on the stack in a cacheline that already contains other local variable. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: John Hawkes <hawkes@sgi.com> Cc: "Siddha, Suresh B" <suresh.b.siddha@intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Peter Williams <pwil3058@bigpond.net.au> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2006-09-25
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] Fix oops introduced in non-uniform port handling fix [PATCH] ata-piix: fixes kerneldoc error
| * [libata] Fix oops introduced in non-uniform port handling fixJeff Garzik2006-09-25
| | | | | | | | | | | | Noticed by several people. Signed-off-by: Jeff Garzik <jeff@garzik.org>
| * [PATCH] ata-piix: fixes kerneldoc errorHenne2006-09-25
| | | | | | | | | | | | Fixes an error in kerneldoc of ata_piix.c. Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2006-09-25
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: [NetLabel]: update docs with website information [NetLabel]: rework the Netlink attribute handling (part 2) [NetLabel]: rework the Netlink attribute handling (part 1) [Netlink]: add nla_validate_nested() [NETLINK]: add nla_for_each_nested() to the interface list [NetLabel]: change the SELinux permissions [NetLabel]: make the CIPSOv4 cache spinlocks bottom half safe [NetLabel]: correct improper handling of non-NetLabel peer contexts [TCP]: make cubic the default [TCP]: default congestion control menu [ATM] he: Fix __init/__devinit conflict [NETFILTER]: Add dscp,DSCP headers to header-y [DCCP]: Introduce dccp_probe [DCCP]: Use constants for CCIDs [DCCP]: Introduce constants for CCID numbers [DCCP]: Allow default/fallback service code.
| * | [NetLabel]: update docs with website informationPaul Moore2006-09-25
| | | | | | | | | | | | | | | | | | | | | | | | Now that all of the supporting pieces of NetLabel have a home at SourceForge update the Kconfig help text and add an entry to the MAINTAINERS file. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NetLabel]: rework the Netlink attribute handling (part 2)Paul Moore2006-09-25
| | | | | | | | | | | | | | | | | | | | | | | | At the suggestion of Thomas Graf, rewrite NetLabel's use of Netlink attributes to better follow the common Netlink attribute usage. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NetLabel]: rework the Netlink attribute handling (part 1)Paul Moore2006-09-25
| | | | | | | | | | | | | | | | | | | | | | | | At the suggestion of Thomas Graf, rewrite NetLabel's use of Netlink attributes to better follow the common Netlink attribute usage. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [Netlink]: add nla_validate_nested()Paul Moore2006-09-25
| | | | | | | | | | | | | | | | | | | | | | | | Add a new function, nla_validate_nested(), to validate nested Netlink attributes. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NETLINK]: add nla_for_each_nested() to the interface listPaul Moore2006-09-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | At the top of include/net/netlink.h is a list of Netlink interfaces, however, the nla_for_each_nested() macro was not listed. This patch adds this interface to the list at the top of the header file. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NetLabel]: change the SELinux permissionsPaul Moore2006-09-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change NetLabel to use the 'recvfrom' socket permission and the SECINITSID_NETMSG SELinux SID as the NetLabel base SID for incoming packets. This patch effectively makes the old, and currently unused, SELinux NETMSG permissions NetLabel permissions. Signed-of-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NetLabel]: make the CIPSOv4 cache spinlocks bottom half safePaul Moore2006-09-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The CIPSOv4 cache traversal routines are triggered both the userspace events (cache invalidation due to DOI removal or updated SELinux policy) and network packet processing events. As a result there is a problem with the existing CIPSOv4 cache spinlocks as they are not bottom-half/softirq safe. This patch converts the CIPSOv4 cache spin_[un]lock() calls into spin_[un]lock_bh() calls to address this problem. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [NetLabel]: correct improper handling of non-NetLabel peer contextsPaul Moore2006-09-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a problem where NetLabel would always set the value of sk_security_struct->peer_sid in selinux_netlbl_sock_graft() to the context of the socket, causing problems when users would query the context of the connection. This patch fixes this so that the value in sk_security_struct->peer_sid is only set when the connection is NetLabel based, otherwise the value is untouched. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: make cubic the defaultStephen Hemminger2006-09-24
| | | | | | | | | | | | | | | | | | | | | | | | Change default congestion control used from BIC to the newer CUBIC which it the successor to BIC but has better properties over long delay links. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [TCP]: default congestion control menuStephen Hemminger2006-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | Change how default TCP congestion control is chosen. Don't just use last installed module, instead allow selection during configuration, and make sure and use the default regardless of load order. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | [ATM] he: Fix __init/__devinit conflictRoland Dreier2006-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | he_init_one() is declared __devinit, but calls lots of init functions that are marked __init. However, if CONFIG_HOTPLUG is enabled, __devinit functions go into normal .text, which leads to WARNING: drivers/atm/he.o - Section mismatch: reference to .init.text: from .text between 'he_start' (at offset 0x2130) and 'he_service_tbrq' Fix this by changing the __init functions to __devinit. Signed-off-by: Roland Dreier <roland@digitalvampire.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | Merge master.kernel.org:/pub/scm/linux/kernel/git/acme/net-2.6David S. Miller2006-09-24
| |\ \
| | * | [DCCP]: Introduce dccp_probeIan McDonald2006-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds DCCP probing shamelessly ripped off from TCP probes by Stephen Hemminger. I've put in here support for further CCID3 variables as well. Andrea/Arnaldo might look to extend for CCID2. Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| | * | [DCCP]: Use constants for CCIDsIan McDonald2006-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | With constants for CCID numbers this now uses them in some places. Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| | * | [DCCP]: Introduce constants for CCID numbersIan McDonald2006-09-24
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| | * | [DCCP]: Allow default/fallback service code.Gerrit Renker2006-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This has been discussed on dccp@vger and removes the necessity for applications to supply service codes in each and every case. If an application does not want to provide a service code, that's fine, it will be given 0. Otherwise, service codes can be set via socket options as before. This patch has been tested using various client/server configurations (including listening on multiple service codes). Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk> Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
| * | | [NETFILTER]: Add dscp,DSCP headers to header-yYasuyuki Kozakai2006-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds xt_dscp.h and xt_DSCP.h to the kernel headers which are exported via 'make headers_install'. These are necessary for userspace to add rules using dscp match and DSCP target. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>