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* [ATM]: [lanai] kill lanai_ioctl() which just contains some old debugging codeMitchell Blank Jr2005-11-29
| | | | | | Signed-off-by: Mitchell Blank Jr <mitch@sfgoth.com> Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ATM]: linux/config.h only needed for #ifdef __KERNEL__ sectionChas Williams2005-11-29
| | | | | Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ATM]: attempt to autoload atm driversMitchell Blank Jr2005-11-29
| | | | | | From: Mitchell Blank Jr <mitch@sfgoth.com> Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ATM]: drivers/atm/atmdev_init.c no longer necessaryJan Pieter2005-11-29
| | | | | | From: Jan Pieter <pptp@jp.dhs.org> Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ATM]: [lanai] lanai missing unregisterDave Jones2005-11-29
| | | | | | Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ATM]: [lanai] better constificationMitchell Blank Jr2005-11-29
| | | | | | Signed-off-by: Mitchell Blank Jr <mitch@sfgoth.com> Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ATM]: atm_pcr_goal() doesn't modify its argument's contents -- mark it as constMitchell Blank Jr2005-11-29
| | | | | | Signed-off-by: Mitchell Blank Jr <mitch@sfgoth.com> Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
* [ATM]: always return the first interface for ATM_ITF_ANYMitchell Blank Jr2005-11-29
| | | | | | From: Mitchell Blank Jr <mitch@sfgoth.com> Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
* [IPV4] tcp/route: Another look at hash table sizesMike Stroyan2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The tcp_ehash hash table gets too big on systems with really big memory. It is worse on systems with pages larger than 4KB. It wastes memory that could be better used. It also makes the netstat command slow because reading /proc/net/tcp and /proc/net/tcp6 needs to go through the full hash table. The default value should not be larger for larger page sizes. It seems that the effect of page size is an unintended error dating back a long time. I also wonder if the default value really should be a larger fraction of memory for systems with more memory. While systems with really big ram can afford more space for hash tables, it is not clear to me that they benefit from increasing the allocation ratio for this table. The amount of memory allocated is determined by net/ipv4/tcp.c:tcp_init and mm/page_alloc.c:alloc_large_system_hash. tcp_init calls alloc_large_system_hash passing parameters- bucketsize=sizeof(struct tcp_ehash_bucket) numentries=thash_entries scale=(num_physpages >= 128 * 1024) ? (25-PAGE_SHIFT) : (27-PAGE_SHIFT) limit=0 On i386, PAGE_SHIFT is 12 for a page size of 4K On ia64, PAGE_SHIFT defaults to 14 for a page size of 16K The num_physpages test above makes the allocation take a larger fraction of the total memory on systems with larger memory. The threshold size for a i386 system is 512MB. For an ia64 system with 16KB pages the threshold is 2GB. For smaller memory systems- On i386, scale = (27 - 12) = 15 On ia64, scale = (27 - 14) = 13 For larger memory systems- On i386, scale = (25 - 12) = 13 On ia64, scale = (25 - 14) = 11 For the rest of this discussion, I'll just track the larger memory case. The default behavior has numentries=thash_entries=0, so the allocated size is determined by either scale or by the default limit of 1/16 of total memory. In alloc_large_system_hash- | numentries = (flags & HASH_HIGHMEM) ? nr_all_pages : nr_kernel_pages; | numentries += (1UL << (20 - PAGE_SHIFT)) - 1; | numentries >>= 20 - PAGE_SHIFT; | numentries <<= 20 - PAGE_SHIFT; At this point, numentries is pages for all of memory, rounded up to the nearest megabyte boundary. | /* limit to 1 bucket per 2^scale bytes of low memory */ | if (scale > PAGE_SHIFT) | numentries >>= (scale - PAGE_SHIFT); | else | numentries <<= (PAGE_SHIFT - scale); On i386, numentries >>= (13 - 12), so numentries is 1/8196 of bytes of total memory. On ia64, numentries <<= (14 - 11), so numentries is 1/2048 of bytes of total memory. | log2qty = long_log2(numentries); | | do { | size = bucketsize << log2qty; bucketsize is 16, so size is 16 times numentries, rounded down to a power of two. On i386, size is 1/512 of bytes of total memory. On ia64, size is 1/128 of bytes of total memory. For smaller systems the results are On i386, size is 1/2048 of bytes of total memory. On ia64, size is 1/512 of bytes of total memory. The large page effect can be removed by just replacing the use of PAGE_SHIFT with a constant of 12 in the calls to alloc_large_system_hash. That makes them more like the other uses of that function from fs/inode.c and fs/dcache.c Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2005-11-29
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| * [SPARC64]: Fix >8K I/O mappings.David S. Miller2005-11-29
| | | | | | | | | | | | | | | | | | Increment the PFN field of the PTE so that the tests on vm_pfn in mm/memory.c match up. The TLB ignores these lower bits for larger page sizes, so it's OK to set things like this. Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'release' of ↵Linus Torvalds2005-11-29
|\ \ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
| * | [IA64] Remove getting break_num by decoding instructionKeshavamurthy Anil S2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | break.b always sets cr.iim to 0 and the current code tries to get the break_num by decoding instruction. However, their seems to be a race condition while reading the regs->cr_iip, as on other cpu the break.b at regs->cr_iip might have been replaced with the original instruction as a result of unregister_kprobe() and hence decoding instruction to obtain break_num will result in wrong value in this case. Also includes changes to kprobes.c which now has to handle break number zero. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | [IA64] - Make pfn_valid more precise for SGI Altix systemsDean Roe2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A single SGI Altix system can be divided into multiple partitions, each running their own instance of the Linux kernel. pfn_valid() is currently not optimal for any but the first partition, since it does not compare the pfn with min_low_pfn before calling the more costly ia64_pfn_valid(). Signed-off-by: Dean Roe <roe@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | Revert "[PATCH] drivers/message/fusion/mptbase.c: make code static"Linus Torvalds2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 252ac865535e1ea9cc2d28be83f477d8d8b961a2. It impacts the LSI customers using the mptstm target mode drivers (source tar-ball at ftp://ftp.lsil.com/HostAdapterDrivers/linux/Fusion-MPT/mptstm-1.00.13-src.tar.gz for those who care). Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] pfnmap: do_no_page BUG_ON againHugh Dickins2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use copy_user_highpage directly instead of cow_user_page in do_no_page: in the immediately following page_cache_release, and elsewhere, it is assuming that new_page is normal. If any VM_PFNMAP driver can get to do_no_page, it's just a BUG (but not in the case of do_anonymous_page). Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] pfnmap: remove src_page from do_wp_pageHugh Dickins2005-11-29
| | | | | | | | | | | | | | | | | | | | | Clean away do_wp_page's "src_page": cow_user_page makes it unnecessary. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | cow_user_page: fix page alignmentLinus Torvalds2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | High Dickins points out that the user virtual address passed to the page fault handler isn't necessarily page-aligned. Also, add a comment on why the copy could fail for the user address case. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | VM: add common helper function to create the page tablesLinus Torvalds2005-11-29
| |/ |/| | | | | | | | | This logic was duplicated four times, for no good reason. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/tglx/mtd-2.6Linus Torvalds2005-11-29
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| * | [MTD] Make functions static, include header files with prototypesAdrian Bunk2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch contains the following possible cleanups: - every file should #include the headers containing the prototypes for it's global functions - make needlessly global functions static Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | [MTD] chips: make sharps driver usable againRichard Purdie2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the pre-CFI Sharp driver sharps.c so it compiles. map_read32 / map_write32 no longer exist in the kernel so the driver is totally broken as it stands. The replacement functions use different parameters resulting in the other changes. Change collie to use this driver until someone works out why the cfi driver fails on that machine. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Tested-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | [MTD] Remove bogus PQ2FADS driverThomas Gleixner2005-11-29
| | | | | | | | | | | | | | | | | | Remove disfunctional driver, which slipped through the review mechanism Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | [MTD] maps: sparse fixupLuiz Capitulino2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | The patch below fixes the following sparse warning: drivers/mtd/maps/nettel.c:482:27: warning: Using plain integer as NULL pointer Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | [MTD] cfi_cmdset_0001: relax locking rules for multi hardware partition supportNicolas Pitre2005-11-29
| | | | | | | | | | | | | | | Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | [MTD] Make some tables 'const' so they can live in .rodataDavid Woodhouse2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | arjan: drivers/mtd/maps/sc520cdp.c:167: warning: par_table is never written to and should be declared 'const' arjan: drivers/mtd/maps/pci.c:105: warning: mtd_pci_map is never written to and should be declared 'const' arjan: mind fixing those up ? Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | [MTD] maps/ixp4xx: half-word boundary and little-endian fixupsJohn Bowler2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ixp4xx updates: - Handle reads that don't start on a half-word boundary. - Make it work when CPU is in little-endian mode. Signed-off-by: John Bowler <jbowler@acm.org> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: David Vrabel <dvrabel@arcom.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | [MTD] CFI: Use 16-bit access to autoselect/read device id dataTodd Poynor2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recent models of Intel/Sharp and Spansion CFI flash now have significant bits in the upper byte of device ID codes, read via what Spansion calls "autoselect" and Intel calls "read device identifier". Currently these values are truncated to the low 8 bits in the mtd data structures, as all CFI read query info has previously been read one byte at a time. Add a new method for reading 16-bit info, currently just manufacturer and device codes; datasheets hint at future uses for upper bytes in other fields. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | [MTD] devices/ms02-nv: phys/virt address fixupsMaciej W. Rozycki2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | Merge from linux-mips: Use physical addresses at the interface level, letting drivers remap them as appropriate. Signed-off-by: Maciej W. Rozycki <macro@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | [JFFS2] Fix the slab cache constructor of 'struct jffs2_inode_info' objects.Thomas Gleixner2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | JFFS2 initialize f->sem mutex as "locked" in the slab constructor which is a bug. Objects are freed with unlocked f->sem mutex. So, when they allocated again, f->sem is unlocked because the slab cache constructor is not called for them. The constructor is called only once when memory pages are allocated for objects (namely, when the slab layer allocates new slabs). So, sometimes 'struct jffs2_inode_info' are allocated with unlocked f->sem, sometimes with locked. This is a bug. Instead, initialize f->sem as unlocked in the constructor. I.e., in the "constructed" state f->sem must be unlocked. From: Keijiro Yano <keijiro_yano@yahoo.co.jp> Acked-by: Artem B. Bityutskiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | [MTD] RFD_FTL: Use lanana assigned major device numberSean Young2005-11-29
| |/ | | | | | | | | | | | | A major block device number is now assigned by lanana. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | [PATCH] fix megaraid.c lockingChristoph Hellwig2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes locking in megaraid.c, namely: (1) make sure megaraid_queue release the adapter lock by changing the code to have a single return (2) remove the errornous scsi_assign_lock call Testing by Burton Windle. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Burton Windle <bwindle@fint.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Support strange discontiguous PFN remappingsLinus Torvalds2005-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | These get created by some drivers that don't generally even want a pfn remapping at all, but would really mostly prefer to just map pages they've allocated individually instead. For now, create a helper function that turns such an incomplete PFN remapping call into a loop that does that explicit mapping. In the long run we almost certainly want to export a totally different interface for that, though. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] Fix missing pfn variables caused by vm changesBen Collins2005-11-29
| | | | | | | | | | | | | | | | | | I image this showed up because of "unused var..." when the changes occured, because flush_cache_page() is a noop in most places. This showed up for me on parisc however, where flush_cache_page() is a real function. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2005-11-29
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| * | [IPV6]: Implement appropriate dummy rule 4 in ipv6_dev_get_saddr().YOSHIFUJI Hideaki2005-11-29
| |/ | | | | | | | | | | | | | | Ensure to update hiscore.rule in dummy rule 4 in ipv6_dev_get_saddr(). Pointed out by Yan Zheng <yanzheng@21cn.com>. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds2005-11-29
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| * | powerpc: Export __flush_icache_range for 32-bitPaul Mackerras2005-11-28
| | | | | | | | | | | | | | | | | | | | | Both 32-bit and 64-bit use the same inline flush_icache_range definition now, so both need to export __flush_icache_range, not just 64-bit. Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [PATCH] ppc: Export symbol needed by MOLOtavio Salvador2005-11-28
| | | | | | | | | | | | | | | | | | | | | Export symbol needed to allow MOL to run. This was changed to be inline in past and forgot to be change here. Signed-off-by: Paul Mackerras <paulus@samba.org>
* | | [PATCH] Fix vma argument in get_usr_pages() for gate areasNick Piggin2005-11-29
| |/ |/| | | | | | | | | | | | | The system call gate area handling called vm_normal_page() with the wrong vma (which was always NULL, and caused an oops). Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Linux v2.6.15-rc3v2.6.15-rc3Linus Torvalds2005-11-28
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* Merge master.kernel.org:/home/rmk/linux-2.6-serialLinus Torvalds2005-11-28
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| * [SERIAL] mark several serial tables constArjan van de Ven2005-11-28
| | | | | | | | | | | | | | | | | | This patch marks a few serial data structures const, moving them to .rodata where they won't false-share cachelines with things that get written to. Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] 3181/1: add PORT_ identifier for Hilscher netx uartSascha Hauer2005-11-28
| | | | | | | | | | | | | | | | | | | | Patch from Sascha Hauer This patch adds PORT_NETX for supporting the Hilscher netx embedded UARTs. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge master.kernel.org:/home/rmk/linux-2.6-mmcLinus Torvalds2005-11-28
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| * | [MMC] Fix protocol errorsPierre Ossman2005-11-28
| |/ | | | | | | | | | | | | | | A review against MMC/SD specifications found some errors in the current implementation. Signed-off-by: Pierre Ossman <drzeus@drzeus.cx> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2005-11-28
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| * | [ARM] 3180/1: Update Zaurus defconfigsRichard Purdie2005-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Richard Purdie This updates the Zaurus defconfigs. Poodle gets merged into corgi_defconfig and support for tosa and akita is enabled. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3179/1: Update/correct Zaurus Kconfig entriesRichard Purdie2005-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Richard Purdie Add iWMMX Extentions for the pxa27x based Zaurus models and fix a couple of minor mistakes in the PXA Kconfig file. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3178/1: S3C2400 - adds GPIO registers definitions to regs-gpio.hLucas Correia Villa Real2005-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lucas Correia Villa Real This patch adds definitions to GPIO registers for the S3C2400 into include/asm-arm/arch-s3c2410/regs-gpio.h. Signed-off-by: Lucas Correia Villa Real <lucasvr@gobolinux.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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